From 8b712cd58adfe6aeeb0be4ecc011dc35620719e7 Mon Sep 17 00:00:00 2001 From: Jeff Mahoney Date: Tue, 7 Jul 2009 17:22:12 -0400 Subject: ocfs2: Fixup orphan scan cleanup after failed mount If the mount fails for any reason, ocfs2_dismount_volume calls ocfs2_orphan_scan_stop. It requires that ocfs2_orphan_scan_init be called to setup the mutex and work queues, but that doesn't happen if the mount has failed and we oops accessing an uninitialized work queue. This patch splits the init and startup of the orphan scan, eliminating the oops. Signed-off-by: Jeff Mahoney Signed-off-by: Joel Becker diff --git a/fs/ocfs2/journal.c b/fs/ocfs2/journal.c index f033760..c48b93a 100644 --- a/fs/ocfs2/journal.c +++ b/fs/ocfs2/journal.c @@ -1954,10 +1954,16 @@ void ocfs2_orphan_scan_init(struct ocfs2_super *osb) os->os_osb = osb; os->os_count = 0; os->os_seqno = 0; - os->os_scantime = CURRENT_TIME; mutex_init(&os->os_lock); INIT_DELAYED_WORK(&os->os_orphan_scan_work, ocfs2_orphan_scan_work); +} +void ocfs2_orphan_scan_start(struct ocfs2_super *osb) +{ + struct ocfs2_orphan_scan *os; + + os = &osb->osb_orphan_scan; + os->os_scantime = CURRENT_TIME; if (ocfs2_is_hard_readonly(osb) || ocfs2_mount_local(osb)) atomic_set(&os->os_state, ORPHAN_SCAN_INACTIVE); else { diff --git a/fs/ocfs2/journal.h b/fs/ocfs2/journal.h index 5432c7f..81e8abc 100644 --- a/fs/ocfs2/journal.h +++ b/fs/ocfs2/journal.h @@ -145,6 +145,7 @@ static inline void ocfs2_inode_set_new(struct ocfs2_super *osb, /* Exported only for the journal struct init code in super.c. Do not call. */ void ocfs2_orphan_scan_init(struct ocfs2_super *osb); +void ocfs2_orphan_scan_start(struct ocfs2_super *osb); void ocfs2_orphan_scan_stop(struct ocfs2_super *osb); void ocfs2_orphan_scan_exit(struct ocfs2_super *osb); diff --git a/fs/ocfs2/super.c b/fs/ocfs2/super.c index 7efb349..63af2e3 100644 --- a/fs/ocfs2/super.c +++ b/fs/ocfs2/super.c @@ -1182,7 +1182,7 @@ static int ocfs2_fill_super(struct super_block *sb, void *data, int silent) wake_up(&osb->osb_mount_event); /* Start this when the mount is almost sure of being successful */ - ocfs2_orphan_scan_init(osb); + ocfs2_orphan_scan_start(osb); mlog_exit(status); return status; @@ -1981,6 +1981,8 @@ static int ocfs2_initialize_super(struct super_block *sb, snprintf(osb->dev_str, sizeof(osb->dev_str), "%u,%u", MAJOR(osb->sb->s_dev), MINOR(osb->sb->s_dev)); + ocfs2_orphan_scan_init(osb); + status = ocfs2_recovery_init(osb); if (status) { mlog(ML_ERROR, "Unable to initialize recovery state\n"); -- cgit v0.10.2 From 17ae26b669886efe237b77439e43eb390fceb119 Mon Sep 17 00:00:00 2001 From: Jeff Liu Date: Tue, 7 Jul 2009 15:51:40 +0800 Subject: ocfs2: trivial fix for s/migrate/migration/ in dlmrecovery.c logging in dlmrecovery.c:1121, replace 'migrate' to 'migration' to keep the consistency by comparing to other lines with the similar log info in the same file. Signed-off-by: Jeff Liu Signed-off-by: Joel Becker diff --git a/fs/ocfs2/dlm/dlmrecovery.c b/fs/ocfs2/dlm/dlmrecovery.c index bcb9260..43e6e32 100644 --- a/fs/ocfs2/dlm/dlmrecovery.c +++ b/fs/ocfs2/dlm/dlmrecovery.c @@ -1118,7 +1118,7 @@ static int dlm_send_mig_lockres_msg(struct dlm_ctxt *dlm, mlog(0, "%s:%.*s: sending mig lockres (%s) to %u\n", dlm->name, res->lockname.len, res->lockname.name, - orig_flags & DLM_MRES_MIGRATION ? "migrate" : "recovery", + orig_flags & DLM_MRES_MIGRATION ? "migration" : "recovery", send_to); /* send it */ -- cgit v0.10.2 From 812e7a6a43fc34bc8f70c2b80db4ea5997d66ea8 Mon Sep 17 00:00:00 2001 From: Wengang Wang Date: Fri, 10 Jul 2009 13:26:04 +0800 Subject: ocfs2: log the actual return value of ocfs2_file_aio_write() in ocfs2_file_aio_write(), log_exit() could don't log the value which is really returned. this patch fixes it. Signed-off-by: Wengang Wang Signed-off-by: Joel Becker diff --git a/fs/ocfs2/file.c b/fs/ocfs2/file.c index 62442e4..a49fa44 100644 --- a/fs/ocfs2/file.c +++ b/fs/ocfs2/file.c @@ -1918,8 +1918,10 @@ out_sems: mutex_unlock(&inode->i_mutex); + if (written) + ret = written; mlog_exit(ret); - return written ? written : ret; + return ret; } static int ocfs2_splice_to_file(struct pipe_inode_info *pipe, -- cgit v0.10.2 From 14d87e6c399f3942d63dff41447ff08a615d9a6b Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Fri, 17 Jul 2009 10:28:19 -0700 Subject: sparc: Fix cleanup crash in bbc_envctrl_cleanup() MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit If kthread_run() fails or never gets to run we'll have NULL or a pointer encoded error in kenvctrld_task, rather than a legitimate task pointer. So this makes bbc_envctrl_cleanup() crash as it passed this bogus pointer into kthread_stop(). Reported-by: BERTRAND Joël Signed-off-by: David S. Miller diff --git a/drivers/sbus/char/bbc_envctrl.c b/drivers/sbus/char/bbc_envctrl.c index 15dab96..7c815d3 100644 --- a/drivers/sbus/char/bbc_envctrl.c +++ b/drivers/sbus/char/bbc_envctrl.c @@ -537,8 +537,12 @@ int bbc_envctrl_init(struct bbc_i2c_bus *bp) } if (temp_index != 0 && fan_index != 0) { kenvctrld_task = kthread_run(kenvctrld, NULL, "kenvctrld"); - if (IS_ERR(kenvctrld_task)) - return PTR_ERR(kenvctrld_task); + if (IS_ERR(kenvctrld_task)) { + int err = PTR_ERR(kenvctrld_task); + + kenvctrld_task = NULL; + return err; + } } return 0; @@ -561,7 +565,8 @@ void bbc_envctrl_cleanup(struct bbc_i2c_bus *bp) struct bbc_cpu_temperature *tp, *tpos; struct bbc_fan_control *fp, *fpos; - kthread_stop(kenvctrld_task); + if (kenvctrld_task) + kthread_stop(kenvctrld_task); list_for_each_entry_safe(tp, tpos, &bp->temps, bp_list) { list_del(&tp->bp_list); -- cgit v0.10.2 From cefcb800fa9536bb6f29485c53e6c82a65b0c022 Mon Sep 17 00:00:00 2001 From: Goldwyn Rodrigues Date: Sat, 11 Jul 2009 10:57:27 -0500 Subject: ocfs2: Initialize count in aio_write before generic_write_checks generic_write_checks() expects count to be initialized to the size of the write. Writes to files open with O_DIRECT|O_LARGEFILE write 0 bytes because count is uninitialized. Signed-off-by: Goldwyn Rodrigues Signed-off-by: Joel Becker diff --git a/fs/ocfs2/file.c b/fs/ocfs2/file.c index a49fa44..aa501d3 100644 --- a/fs/ocfs2/file.c +++ b/fs/ocfs2/file.c @@ -1851,6 +1851,7 @@ relock: if (ret) goto out_dio; + count = ocount; ret = generic_write_checks(file, ppos, &count, S_ISBLK(inode->i_mode)); if (ret) -- cgit v0.10.2 From 44d8e4e1e9b941065eb7578669fe51eb65c73e63 Mon Sep 17 00:00:00 2001 From: Subrata Modak Date: Tue, 14 Jul 2009 01:19:31 +0530 Subject: ocfs2: Fix compilation warning for fs/ocfs2/xattr.c MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit gcc 4.4.1 generates the following build warning on i386: CC [M] fs/ocfs2/xattr.o fs/ocfs2/xattr.c: In function ‘ocfs2_xattr_block_get’: fs/ocfs2/xattr.c:1055: warning: ‘block_off’ may be used uninitialized in this function The following fix is based on a similar approach by David Howells few days back: http://lkml.org/lkml/2009/7/9/109, Signed-off-by: Subrata Modak, Signed-off-by: Joel Becker diff --git a/fs/ocfs2/xattr.c b/fs/ocfs2/xattr.c index ba320e2..d1a27cd 100644 --- a/fs/ocfs2/xattr.c +++ b/fs/ocfs2/xattr.c @@ -1052,7 +1052,8 @@ static int ocfs2_xattr_block_get(struct inode *inode, struct ocfs2_xattr_block *xb; struct ocfs2_xattr_value_root *xv; size_t size; - int ret = -ENODATA, name_offset, name_len, block_off, i; + int ret = -ENODATA, name_offset, name_len, i; + int uninitialized_var(block_off); xs->bucket = ocfs2_xattr_bucket_new(inode); if (!xs->bucket) { -- cgit v0.10.2 From cbfa9639aea5007313b75ec43b689d5f9e0c037d Mon Sep 17 00:00:00 2001 From: Wengang Wang Date: Mon, 13 Jul 2009 11:38:23 +0800 Subject: ocfs2: Fix error return in ocfs2_write_cluster() A typo caused ocfs2_write_cluster() to return 0 in some error cases. Fix it. Signed-off-by: Wengang Wang Signed-off-by: Joel Becker diff --git a/fs/ocfs2/aops.c b/fs/ocfs2/aops.c index b2c52b3..25aced3 100644 --- a/fs/ocfs2/aops.c +++ b/fs/ocfs2/aops.c @@ -1301,7 +1301,7 @@ static int ocfs2_write_cluster(struct address_space *mapping, if (tmpret) { mlog_errno(tmpret); if (ret == 0) - tmpret = ret; + ret = tmpret; } } -- cgit v0.10.2 From 1f4cea3790bf44137192f441ee84af256e3bf809 Mon Sep 17 00:00:00 2001 From: Wengang Wang Date: Mon, 13 Jul 2009 11:38:58 +0800 Subject: ocfs2: Fail ocfs2_get_block() immediately when a block needs allocation ocfs2_get_block() does no allocation. Hole filling for writes should have happened farther up in the call chain. We detect this case and print an error, but we then continue with the function. We should be exiting immediately. Signed-off-by: Wengang Wang Signed-off-by: Joel Becker diff --git a/fs/ocfs2/aops.c b/fs/ocfs2/aops.c index 25aced3..e511df1 100644 --- a/fs/ocfs2/aops.c +++ b/fs/ocfs2/aops.c @@ -193,6 +193,7 @@ static int ocfs2_get_block(struct inode *inode, sector_t iblock, (unsigned long long)OCFS2_I(inode)->ip_blkno); mlog(ML_ERROR, "Size %llu, clusters %u\n", (unsigned long long)i_size_read(inode), OCFS2_I(inode)->ip_clusters); dump_stack(); + goto bail; } past_eof = ocfs2_blocks_for_bytes(inode->i_sb, i_size_read(inode)); -- cgit v0.10.2 From 3c5e10683e684ef45614c9071847e48f633d9806 Mon Sep 17 00:00:00 2001 From: Tao Ma Date: Tue, 21 Jul 2009 15:42:05 +0800 Subject: ocfs2: Add extra credits and access the modified bh in update_edge_lengths. In normal tree rotation left process, we will never touch the tree branch above subtree_index and ocfs2_extend_rotate_transaction doesn't reserve the credits for them either. But when we want to delete the rightmost extent block, we have to update the rightmost records for all the rightmost branch(See ocfs2_update_edge_lengths), so we have to allocate extra credits for them. What's more, we have to access them also. Signed-off-by: Tao Ma Signed-off-by: Joel Becker diff --git a/fs/ocfs2/alloc.c b/fs/ocfs2/alloc.c index 9edcde4..11085af 100644 --- a/fs/ocfs2/alloc.c +++ b/fs/ocfs2/alloc.c @@ -2476,15 +2476,37 @@ out_ret_path: return ret; } -static void ocfs2_update_edge_lengths(struct inode *inode, handle_t *handle, - struct ocfs2_path *path) +static int ocfs2_update_edge_lengths(struct inode *inode, handle_t *handle, + int subtree_index, struct ocfs2_path *path) { - int i, idx; + int i, idx, ret; struct ocfs2_extent_rec *rec; struct ocfs2_extent_list *el; struct ocfs2_extent_block *eb; u32 range; + /* + * In normal tree rotation process, we will never touch the + * tree branch above subtree_index and ocfs2_extend_rotate_transaction + * doesn't reserve the credits for them either. + * + * But we do have a special case here which will update the rightmost + * records for all the bh in the path. + * So we have to allocate extra credits and access them. + */ + ret = ocfs2_extend_trans(handle, + handle->h_buffer_credits + subtree_index); + if (ret) { + mlog_errno(ret); + goto out; + } + + ret = ocfs2_journal_access_path(inode, handle, path); + if (ret) { + mlog_errno(ret); + goto out; + } + /* Path should always be rightmost. */ eb = (struct ocfs2_extent_block *)path_leaf_bh(path)->b_data; BUG_ON(eb->h_next_leaf_blk != 0ULL); @@ -2505,6 +2527,8 @@ static void ocfs2_update_edge_lengths(struct inode *inode, handle_t *handle, ocfs2_journal_dirty(handle, path->p_node[i].bh); } +out: + return ret; } static void ocfs2_unlink_path(struct inode *inode, handle_t *handle, @@ -2717,7 +2741,12 @@ static int ocfs2_rotate_subtree_left(struct inode *inode, handle_t *handle, if (del_right_subtree) { ocfs2_unlink_subtree(inode, handle, left_path, right_path, subtree_index, dealloc); - ocfs2_update_edge_lengths(inode, handle, left_path); + ret = ocfs2_update_edge_lengths(inode, handle, subtree_index, + left_path); + if (ret) { + mlog_errno(ret); + goto out; + } eb = (struct ocfs2_extent_block *)path_leaf_bh(left_path)->b_data; ocfs2_et_set_last_eb_blk(et, le64_to_cpu(eb->h_blkno)); @@ -3034,7 +3063,12 @@ static int ocfs2_remove_rightmost_path(struct inode *inode, handle_t *handle, ocfs2_unlink_subtree(inode, handle, left_path, path, subtree_index, dealloc); - ocfs2_update_edge_lengths(inode, handle, left_path); + ret = ocfs2_update_edge_lengths(inode, handle, subtree_index, + left_path); + if (ret) { + mlog_errno(ret); + goto out; + } eb = (struct ocfs2_extent_block *)path_leaf_bh(left_path)->b_data; ocfs2_et_set_last_eb_blk(et, le64_to_cpu(eb->h_blkno)); -- cgit v0.10.2 From f7b1aa69be138ad9d7d3f31fa56f4c9407f56b6a Mon Sep 17 00:00:00 2001 From: Jan Kara Date: Mon, 20 Jul 2009 12:12:36 +0200 Subject: ocfs2: Fix deadlock on umount In commit ea455f8ab68338ba69f5d3362b342c115bea8e13, we moved the dentry lock put process into ocfs2_wq. This causes problems during umount because ocfs2_wq can drop references to inodes while they are being invalidated by invalidate_inodes() causing all sorts of nasty things (invalidate_inodes() ending in an infinite loop, "Busy inodes after umount" messages etc.). We fix the problem by stopping ocfs2_wq from doing any further releasing of inode references on the superblock being unmounted, wait until it finishes the current round of releasing and finally cleaning up all the references in dentry_lock_list from ocfs2_put_super(). The issue was tracked down by Tao Ma . Signed-off-by: Jan Kara Signed-off-by: Joel Becker diff --git a/fs/ocfs2/dcache.c b/fs/ocfs2/dcache.c index b574431..2f28b7d 100644 --- a/fs/ocfs2/dcache.c +++ b/fs/ocfs2/dcache.c @@ -310,22 +310,19 @@ out_attach: return ret; } -static DEFINE_SPINLOCK(dentry_list_lock); +DEFINE_SPINLOCK(dentry_list_lock); /* We limit the number of dentry locks to drop in one go. We have * this limit so that we don't starve other users of ocfs2_wq. */ #define DL_INODE_DROP_COUNT 64 /* Drop inode references from dentry locks */ -void ocfs2_drop_dl_inodes(struct work_struct *work) +static void __ocfs2_drop_dl_inodes(struct ocfs2_super *osb, int drop_count) { - struct ocfs2_super *osb = container_of(work, struct ocfs2_super, - dentry_lock_work); struct ocfs2_dentry_lock *dl; - int drop_count = DL_INODE_DROP_COUNT; spin_lock(&dentry_list_lock); - while (osb->dentry_lock_list && drop_count--) { + while (osb->dentry_lock_list && (drop_count < 0 || drop_count--)) { dl = osb->dentry_lock_list; osb->dentry_lock_list = dl->dl_next; spin_unlock(&dentry_list_lock); @@ -333,11 +330,32 @@ void ocfs2_drop_dl_inodes(struct work_struct *work) kfree(dl); spin_lock(&dentry_list_lock); } - if (osb->dentry_lock_list) + spin_unlock(&dentry_list_lock); +} + +void ocfs2_drop_dl_inodes(struct work_struct *work) +{ + struct ocfs2_super *osb = container_of(work, struct ocfs2_super, + dentry_lock_work); + + __ocfs2_drop_dl_inodes(osb, DL_INODE_DROP_COUNT); + /* + * Don't queue dropping if umount is in progress. We flush the + * list in ocfs2_dismount_volume + */ + spin_lock(&dentry_list_lock); + if (osb->dentry_lock_list && + !ocfs2_test_osb_flag(osb, OCFS2_OSB_DROP_DENTRY_LOCK_IMMED)) queue_work(ocfs2_wq, &osb->dentry_lock_work); spin_unlock(&dentry_list_lock); } +/* Flush the whole work queue */ +void ocfs2_drop_all_dl_inodes(struct ocfs2_super *osb) +{ + __ocfs2_drop_dl_inodes(osb, -1); +} + /* * ocfs2_dentry_iput() and friends. * @@ -368,7 +386,8 @@ static void ocfs2_drop_dentry_lock(struct ocfs2_super *osb, /* We leave dropping of inode reference to ocfs2_wq as that can * possibly lead to inode deletion which gets tricky */ spin_lock(&dentry_list_lock); - if (!osb->dentry_lock_list) + if (!osb->dentry_lock_list && + !ocfs2_test_osb_flag(osb, OCFS2_OSB_DROP_DENTRY_LOCK_IMMED)) queue_work(ocfs2_wq, &osb->dentry_lock_work); dl->dl_next = osb->dentry_lock_list; osb->dentry_lock_list = dl; diff --git a/fs/ocfs2/dcache.h b/fs/ocfs2/dcache.h index faa12e7..f5dd178 100644 --- a/fs/ocfs2/dcache.h +++ b/fs/ocfs2/dcache.h @@ -49,10 +49,13 @@ struct ocfs2_dentry_lock { int ocfs2_dentry_attach_lock(struct dentry *dentry, struct inode *inode, u64 parent_blkno); +extern spinlock_t dentry_list_lock; + void ocfs2_dentry_lock_put(struct ocfs2_super *osb, struct ocfs2_dentry_lock *dl); void ocfs2_drop_dl_inodes(struct work_struct *work); +void ocfs2_drop_all_dl_inodes(struct ocfs2_super *osb); struct dentry *ocfs2_find_local_alias(struct inode *inode, u64 parent_blkno, int skip_unhashed); diff --git a/fs/ocfs2/ocfs2.h b/fs/ocfs2/ocfs2.h index c9345eb..39e1d5a 100644 --- a/fs/ocfs2/ocfs2.h +++ b/fs/ocfs2/ocfs2.h @@ -224,10 +224,12 @@ enum ocfs2_mount_options OCFS2_MOUNT_GRPQUOTA = 1 << 10, /* We support group quotas */ }; -#define OCFS2_OSB_SOFT_RO 0x0001 -#define OCFS2_OSB_HARD_RO 0x0002 -#define OCFS2_OSB_ERROR_FS 0x0004 -#define OCFS2_DEFAULT_ATIME_QUANTUM 60 +#define OCFS2_OSB_SOFT_RO 0x0001 +#define OCFS2_OSB_HARD_RO 0x0002 +#define OCFS2_OSB_ERROR_FS 0x0004 +#define OCFS2_OSB_DROP_DENTRY_LOCK_IMMED 0x0008 + +#define OCFS2_DEFAULT_ATIME_QUANTUM 60 struct ocfs2_journal; struct ocfs2_slot_info; @@ -490,6 +492,18 @@ static inline void ocfs2_set_osb_flag(struct ocfs2_super *osb, spin_unlock(&osb->osb_lock); } + +static inline unsigned long ocfs2_test_osb_flag(struct ocfs2_super *osb, + unsigned long flag) +{ + unsigned long ret; + + spin_lock(&osb->osb_lock); + ret = osb->osb_flags & flag; + spin_unlock(&osb->osb_lock); + return ret; +} + static inline void ocfs2_set_ro_flag(struct ocfs2_super *osb, int hard) { diff --git a/fs/ocfs2/super.c b/fs/ocfs2/super.c index 63af2e3..f289387 100644 --- a/fs/ocfs2/super.c +++ b/fs/ocfs2/super.c @@ -1213,14 +1213,27 @@ static int ocfs2_get_sb(struct file_system_type *fs_type, mnt); } +static void ocfs2_kill_sb(struct super_block *sb) +{ + struct ocfs2_super *osb = OCFS2_SB(sb); + + /* Prevent further queueing of inode drop events */ + spin_lock(&dentry_list_lock); + ocfs2_set_osb_flag(osb, OCFS2_OSB_DROP_DENTRY_LOCK_IMMED); + spin_unlock(&dentry_list_lock); + /* Wait for work to finish and/or remove it */ + cancel_work_sync(&osb->dentry_lock_work); + + kill_block_super(sb); +} + static struct file_system_type ocfs2_fs_type = { .owner = THIS_MODULE, .name = "ocfs2", .get_sb = ocfs2_get_sb, /* is this called when we mount * the fs? */ - .kill_sb = kill_block_super, /* set to the generic one - * right now, but do we - * need to change that? */ + .kill_sb = ocfs2_kill_sb, + .fs_flags = FS_REQUIRES_DEV|FS_RENAME_DOES_D_MOVE, .next = NULL }; @@ -1819,6 +1832,12 @@ static void ocfs2_dismount_volume(struct super_block *sb, int mnt_err) debugfs_remove(osb->osb_ctxt); + /* + * Flush inode dropping work queue so that deletes are + * performed while the filesystem is still working + */ + ocfs2_drop_all_dl_inodes(osb); + /* Orphan scan should be stopped as early as possible */ ocfs2_orphan_scan_stop(osb); -- cgit v0.10.2 From 82e12644cf5227dab15201fbcaf0ca6330ebd70f Mon Sep 17 00:00:00 2001 From: Tao Ma Date: Thu, 23 Jul 2009 08:12:58 +0800 Subject: ocfs2: Use ocfs2_rec_clusters in ocfs2_adjust_adjacent_records. In ocfs2_adjust_adjacent_records, we will adjust adjacent records according to the extent_list in the lower level. But actually the lower level tree will either be a leaf or a branch. If we only use ocfs2_is_empty_extent we will meet with some problem if the lower tree is a branch (tree_depth > 1). So use !ocfs2_rec_clusters instead. And actually only the leaf record can have holes. So add a BUG_ON for non-leaf branch. Signed-off-by: Tao Ma Signed-off-by: Joel Becker diff --git a/fs/ocfs2/alloc.c b/fs/ocfs2/alloc.c index 11085af..f9a3e89 100644 --- a/fs/ocfs2/alloc.c +++ b/fs/ocfs2/alloc.c @@ -1914,7 +1914,8 @@ static void ocfs2_adjust_adjacent_records(struct ocfs2_extent_rec *left_rec, * immediately to their right. */ left_clusters = le32_to_cpu(right_child_el->l_recs[0].e_cpos); - if (ocfs2_is_empty_extent(&right_child_el->l_recs[0])) { + if (!ocfs2_rec_clusters(right_child_el, &right_child_el->l_recs[0])) { + BUG_ON(right_child_el->l_tree_depth); BUG_ON(le16_to_cpu(right_child_el->l_next_free_rec) <= 1); left_clusters = le32_to_cpu(right_child_el->l_recs[1].e_cpos); } -- cgit v0.10.2 From b57ac2c43e66cb4aa76c9d2d0e9e0e04f19cc5a6 Mon Sep 17 00:00:00 2001 From: Jan Kara Date: Wed, 22 Jul 2009 13:17:15 +0200 Subject: ocfs2: Make global quota files blocksize aligned Change i_size of global quota files so that it always remains aligned to block size. This is mainly because the end of quota block may contain checksum (if checksumming is enabled) and it's a bit awkward for it to be "outside" of quota file (and it makes life harder for ocfs2-tools). Signed-off-by: Jan Kara Signed-off-by: Joel Becker diff --git a/fs/ocfs2/quota_global.c b/fs/ocfs2/quota_global.c index edfa60c..a66cb82 100644 --- a/fs/ocfs2/quota_global.c +++ b/fs/ocfs2/quota_global.c @@ -211,14 +211,17 @@ ssize_t ocfs2_quota_write(struct super_block *sb, int type, mutex_lock_nested(&gqinode->i_mutex, I_MUTEX_QUOTA); if (gqinode->i_size < off + len) { + loff_t rounded_end = + ocfs2_align_bytes_to_blocks(sb, off + len); + down_write(&OCFS2_I(gqinode)->ip_alloc_sem); - err = ocfs2_extend_no_holes(gqinode, off + len, off); + err = ocfs2_extend_no_holes(gqinode, rounded_end, off); up_write(&OCFS2_I(gqinode)->ip_alloc_sem); if (err < 0) goto out; err = ocfs2_simple_size_update(gqinode, oinfo->dqi_gqi_bh, - off + len); + rounded_end); if (err < 0) goto out; new = 1; -- cgit v0.10.2 From 4b3fa1904c0d192461ebba692e4940a334b74353 Mon Sep 17 00:00:00 2001 From: Jan Kara Date: Wed, 22 Jul 2009 13:17:16 +0200 Subject: ocfs2: Mark buffer uptodate before calling ocfs2_journal_access_dq() In a code path extending local quota files we marked new header buffer uptodate only after calling ocfs2_journal_access_dq() which triggers a bug. Fix it and also call ocfs2 variant of the function marking buffer uptodate. Signed-off-by: Jan Kara Signed-off-by: Joel Becker diff --git a/fs/ocfs2/quota_local.c b/fs/ocfs2/quota_local.c index 5a460fa..b624f9b 100644 --- a/fs/ocfs2/quota_local.c +++ b/fs/ocfs2/quota_local.c @@ -20,6 +20,7 @@ #include "sysfile.h" #include "dlmglue.h" #include "quota.h" +#include "uptodate.h" /* Number of local quota structures per block */ static inline unsigned int ol_quota_entries_per_block(struct super_block *sb) @@ -979,6 +980,8 @@ static struct ocfs2_quota_chunk *ocfs2_local_quota_add_chunk( mlog_errno(status); goto out; } + ocfs2_set_new_buffer_uptodate(lqinode, bh); + dchunk = (struct ocfs2_local_disk_chunk *)bh->b_data; handle = ocfs2_start_trans(OCFS2_SB(sb), 2); @@ -999,7 +1002,6 @@ static struct ocfs2_quota_chunk *ocfs2_local_quota_add_chunk( memset(dchunk->dqc_bitmap, 0, sb->s_blocksize - sizeof(struct ocfs2_local_disk_chunk) - OCFS2_QBLK_RESERVED_SPACE); - set_buffer_uptodate(bh); unlock_buffer(bh); status = ocfs2_journal_dirty(handle, bh); if (status < 0) { -- cgit v0.10.2 From 0e7f387bf386c99e8ee322649fe4fc23b9cccc6c Mon Sep 17 00:00:00 2001 From: Jan Kara Date: Wed, 22 Jul 2009 13:17:17 +0200 Subject: ocfs2: Initialize blocks allocated to local quota file When we extend local quota file, we should initialize data in newly allocated block. Firstly because on recovery we could parse bogus data, secondly so that block checksums are properly computed. Signed-off-by: Jan Kara Signed-off-by: Joel Becker diff --git a/fs/ocfs2/quota_local.c b/fs/ocfs2/quota_local.c index b624f9b..9d2993d 100644 --- a/fs/ocfs2/quota_local.c +++ b/fs/ocfs2/quota_local.c @@ -941,7 +941,7 @@ static struct ocfs2_quota_chunk *ocfs2_local_quota_add_chunk( struct ocfs2_local_disk_chunk *dchunk; int status; handle_t *handle; - struct buffer_head *bh = NULL; + struct buffer_head *bh = NULL, *dbh = NULL; u64 p_blkno; /* We are protected by dqio_sem so no locking needed */ @@ -965,34 +965,32 @@ static struct ocfs2_quota_chunk *ocfs2_local_quota_add_chunk( mlog_errno(status); goto out; } + handle = ocfs2_start_trans(OCFS2_SB(sb), 3); + if (IS_ERR(handle)) { + status = PTR_ERR(handle); + mlog_errno(status); + goto out; + } + /* Initialize chunk header */ down_read(&OCFS2_I(lqinode)->ip_alloc_sem); status = ocfs2_extent_map_get_blocks(lqinode, oinfo->dqi_blocks, &p_blkno, NULL, NULL); up_read(&OCFS2_I(lqinode)->ip_alloc_sem); if (status < 0) { mlog_errno(status); - goto out; + goto out_trans; } bh = sb_getblk(sb, p_blkno); if (!bh) { status = -ENOMEM; mlog_errno(status); - goto out; + goto out_trans; } - ocfs2_set_new_buffer_uptodate(lqinode, bh); - dchunk = (struct ocfs2_local_disk_chunk *)bh->b_data; - - handle = ocfs2_start_trans(OCFS2_SB(sb), 2); - if (IS_ERR(handle)) { - status = PTR_ERR(handle); - mlog_errno(status); - goto out; - } - + ocfs2_set_new_buffer_uptodate(lqinode, bh); status = ocfs2_journal_access_dq(handle, lqinode, bh, - OCFS2_JOURNAL_ACCESS_WRITE); + OCFS2_JOURNAL_ACCESS_CREATE); if (status < 0) { mlog_errno(status); goto out_trans; @@ -1009,6 +1007,38 @@ static struct ocfs2_quota_chunk *ocfs2_local_quota_add_chunk( goto out_trans; } + /* Initialize new block with structures */ + down_read(&OCFS2_I(lqinode)->ip_alloc_sem); + status = ocfs2_extent_map_get_blocks(lqinode, oinfo->dqi_blocks + 1, + &p_blkno, NULL, NULL); + up_read(&OCFS2_I(lqinode)->ip_alloc_sem); + if (status < 0) { + mlog_errno(status); + goto out_trans; + } + dbh = sb_getblk(sb, p_blkno); + if (!dbh) { + status = -ENOMEM; + mlog_errno(status); + goto out_trans; + } + ocfs2_set_new_buffer_uptodate(lqinode, dbh); + status = ocfs2_journal_access_dq(handle, lqinode, dbh, + OCFS2_JOURNAL_ACCESS_CREATE); + if (status < 0) { + mlog_errno(status); + goto out_trans; + } + lock_buffer(dbh); + memset(dbh->b_data, 0, sb->s_blocksize - OCFS2_QBLK_RESERVED_SPACE); + unlock_buffer(dbh); + status = ocfs2_journal_dirty(handle, dbh); + if (status < 0) { + mlog_errno(status); + goto out_trans; + } + + /* Update local quotafile info */ oinfo->dqi_blocks += 2; oinfo->dqi_chunks++; status = ocfs2_local_write_info(sb, type); @@ -1033,6 +1063,7 @@ out_trans: ocfs2_commit_trans(OCFS2_SB(sb), handle); out: brelse(bh); + brelse(dbh); kmem_cache_free(ocfs2_qf_chunk_cachep, chunk); return ERR_PTR(status); } @@ -1050,6 +1081,8 @@ static struct ocfs2_quota_chunk *ocfs2_extend_local_quota_file( struct ocfs2_local_disk_chunk *dchunk; int epb = ol_quota_entries_per_block(sb); unsigned int chunk_blocks; + struct buffer_head *bh; + u64 p_blkno; int status; handle_t *handle; @@ -1077,12 +1110,46 @@ static struct ocfs2_quota_chunk *ocfs2_extend_local_quota_file( mlog_errno(status); goto out; } - handle = ocfs2_start_trans(OCFS2_SB(sb), 2); + + /* Get buffer from the just added block */ + down_read(&OCFS2_I(lqinode)->ip_alloc_sem); + status = ocfs2_extent_map_get_blocks(lqinode, oinfo->dqi_blocks, + &p_blkno, NULL, NULL); + up_read(&OCFS2_I(lqinode)->ip_alloc_sem); + if (status < 0) { + mlog_errno(status); + goto out; + } + bh = sb_getblk(sb, p_blkno); + if (!bh) { + status = -ENOMEM; + mlog_errno(status); + goto out; + } + ocfs2_set_new_buffer_uptodate(lqinode, bh); + + handle = ocfs2_start_trans(OCFS2_SB(sb), 3); if (IS_ERR(handle)) { status = PTR_ERR(handle); mlog_errno(status); goto out; } + /* Zero created block */ + status = ocfs2_journal_access_dq(handle, lqinode, bh, + OCFS2_JOURNAL_ACCESS_CREATE); + if (status < 0) { + mlog_errno(status); + goto out_trans; + } + lock_buffer(bh); + memset(bh->b_data, 0, sb->s_blocksize); + unlock_buffer(bh); + status = ocfs2_journal_dirty(handle, bh); + if (status < 0) { + mlog_errno(status); + goto out_trans; + } + /* Update chunk header */ status = ocfs2_journal_access_dq(handle, lqinode, chunk->qc_headerbh, OCFS2_JOURNAL_ACCESS_WRITE); if (status < 0) { @@ -1099,6 +1166,7 @@ static struct ocfs2_quota_chunk *ocfs2_extend_local_quota_file( mlog_errno(status); goto out_trans; } + /* Update file header */ oinfo->dqi_blocks++; status = ocfs2_local_write_info(sb, type); if (status < 0) { -- cgit v0.10.2 From 7669f54c55df225cbb2db939a6c9f111445ffc1c Mon Sep 17 00:00:00 2001 From: Jan Kara Date: Wed, 22 Jul 2009 13:17:18 +0200 Subject: ocfs2: Zero out padding of on disk dquot structure Padding fields of on-disk dquot structure were not zeroed. Zero them so that it's easier to use them later. Signed-off-by: Jan Kara Signed-off-by: Joel Becker diff --git a/fs/ocfs2/quota_global.c b/fs/ocfs2/quota_global.c index a66cb82..7248db6 100644 --- a/fs/ocfs2/quota_global.c +++ b/fs/ocfs2/quota_global.c @@ -69,6 +69,7 @@ static void ocfs2_global_mem2diskdqb(void *dp, struct dquot *dquot) d->dqb_curspace = cpu_to_le64(m->dqb_curspace); d->dqb_btime = cpu_to_le64(m->dqb_btime); d->dqb_itime = cpu_to_le64(m->dqb_itime); + d->dqb_pad1 = d->dqb_pad2 = 0; } static int ocfs2_global_is_id(void *dp, struct dquot *dquot) -- cgit v0.10.2 From 1c1d9793ff6720531c0125a28d321f283716e32f Mon Sep 17 00:00:00 2001 From: Jan Kara Date: Wed, 22 Jul 2009 13:17:19 +0200 Subject: ocfs2: Fix initialization of blockcheck stats We just set blockcheck stats to zeros but we should also properly initialize the spinlock there. Signed-off-by: Jan Kara Signed-off-by: Joel Becker diff --git a/fs/ocfs2/super.c b/fs/ocfs2/super.c index f289387..b0ee0fd 100644 --- a/fs/ocfs2/super.c +++ b/fs/ocfs2/super.c @@ -777,6 +777,7 @@ static int ocfs2_sb_probe(struct super_block *sb, } di = (struct ocfs2_dinode *) (*bh)->b_data; memset(stats, 0, sizeof(struct ocfs2_blockcheck_stats)); + spin_lock_init(&stats->b_lock); status = ocfs2_verify_volume(di, *bh, blksize, stats); if (status >= 0) goto bail; -- cgit v0.10.2 From 4539f1df25bcd0fdf0d8a5e2c92de6bece83c7a0 Mon Sep 17 00:00:00 2001 From: Jan Kara Date: Wed, 22 Jul 2009 13:17:20 +0200 Subject: ocfs2: Remove syncjiff field from quota info syncjiff is just a converted value of syncms. Some places which are updating syncms forgot to update syncjiff as well. Since the conversion is just a simple division / multiplication and it does not happen frequently, just remove the syncjiff field to avoid forgotten conversions. Signed-off-by: Jan Kara Signed-off-by: Joel Becker diff --git a/fs/ocfs2/quota.h b/fs/ocfs2/quota.h index 7365e2e..3fb96fcd 100644 --- a/fs/ocfs2/quota.h +++ b/fs/ocfs2/quota.h @@ -50,7 +50,6 @@ struct ocfs2_mem_dqinfo { unsigned int dqi_chunks; /* Number of chunks in local quota file */ unsigned int dqi_blocks; /* Number of blocks allocated for local quota file */ unsigned int dqi_syncms; /* How often should we sync with other nodes */ - unsigned int dqi_syncjiff; /* Precomputed dqi_syncms in jiffies */ struct list_head dqi_chunk; /* List of chunks */ struct inode *dqi_gqinode; /* Global quota file inode */ struct ocfs2_lock_res dqi_gqlock; /* Lock protecting quota information structure */ diff --git a/fs/ocfs2/quota_global.c b/fs/ocfs2/quota_global.c index 7248db6..dab4546 100644 --- a/fs/ocfs2/quota_global.c +++ b/fs/ocfs2/quota_global.c @@ -346,7 +346,6 @@ int ocfs2_global_read_info(struct super_block *sb, int type) info->dqi_bgrace = le32_to_cpu(dinfo.dqi_bgrace); info->dqi_igrace = le32_to_cpu(dinfo.dqi_igrace); oinfo->dqi_syncms = le32_to_cpu(dinfo.dqi_syncms); - oinfo->dqi_syncjiff = msecs_to_jiffies(oinfo->dqi_syncms); oinfo->dqi_gi.dqi_blocks = le32_to_cpu(dinfo.dqi_blocks); oinfo->dqi_gi.dqi_free_blk = le32_to_cpu(dinfo.dqi_free_blk); oinfo->dqi_gi.dqi_free_entry = le32_to_cpu(dinfo.dqi_free_entry); @@ -356,7 +355,7 @@ int ocfs2_global_read_info(struct super_block *sb, int type) oinfo->dqi_gi.dqi_qtree_depth = qtree_depth(&oinfo->dqi_gi); INIT_DELAYED_WORK(&oinfo->dqi_sync_work, qsync_work_fn); queue_delayed_work(ocfs2_quota_wq, &oinfo->dqi_sync_work, - oinfo->dqi_syncjiff); + msecs_to_jiffies(oinfo->dqi_syncms)); out_err: mlog_exit(status); @@ -611,7 +610,7 @@ static void qsync_work_fn(struct work_struct *work) dquot_scan_active(sb, ocfs2_sync_dquot_helper, oinfo->dqi_type); queue_delayed_work(ocfs2_quota_wq, &oinfo->dqi_sync_work, - oinfo->dqi_syncjiff); + msecs_to_jiffies(oinfo->dqi_syncms)); } /* -- cgit v0.10.2 From 0584974a77796581eb3a64b6c5005edac4a95128 Mon Sep 17 00:00:00 2001 From: Jan Kara Date: Wed, 22 Jul 2009 13:17:21 +0200 Subject: ocfs2: Define credit counts for quota operations Numbers of needed credits for some quota operations were written as raw numbers. Create appropriate defines instead. Signed-off-by: Jan Kara Signed-off-by: Joel Becker diff --git a/fs/ocfs2/journal.h b/fs/ocfs2/journal.h index 81e8abc..4a4d3b5 100644 --- a/fs/ocfs2/journal.h +++ b/fs/ocfs2/journal.h @@ -330,20 +330,27 @@ int ocfs2_journal_dirty(handle_t *handle, /* extended attribute block update */ #define OCFS2_XATTR_BLOCK_UPDATE_CREDITS 1 +/* Update of a single quota block */ +#define OCFS2_QUOTA_BLOCK_UPDATE_CREDITS 1 + /* global quotafile inode update, data block */ -#define OCFS2_QINFO_WRITE_CREDITS (OCFS2_INODE_UPDATE_CREDITS + 1) +#define OCFS2_QINFO_WRITE_CREDITS (OCFS2_INODE_UPDATE_CREDITS + \ + OCFS2_QUOTA_BLOCK_UPDATE_CREDITS) +#define OCFS2_LOCAL_QINFO_WRITE_CREDITS OCFS2_QUOTA_BLOCK_UPDATE_CREDITS /* * The two writes below can accidentally see global info dirty due * to set_info() quotactl so make them prepared for the writes. */ /* quota data block, global info */ /* Write to local quota file */ -#define OCFS2_QWRITE_CREDITS (OCFS2_QINFO_WRITE_CREDITS + 1) +#define OCFS2_QWRITE_CREDITS (OCFS2_QINFO_WRITE_CREDITS + \ + OCFS2_QUOTA_BLOCK_UPDATE_CREDITS) /* global quota data block, local quota data block, global quota inode, * global quota info */ -#define OCFS2_QSYNC_CREDITS (OCFS2_INODE_UPDATE_CREDITS + 3) +#define OCFS2_QSYNC_CREDITS (OCFS2_QINFO_WRITE_CREDITS + \ + 2 * OCFS2_QUOTA_BLOCK_UPDATE_CREDITS) static inline int ocfs2_quota_trans_credits(struct super_block *sb) { diff --git a/fs/ocfs2/quota_global.c b/fs/ocfs2/quota_global.c index dab4546..cc8785c 100644 --- a/fs/ocfs2/quota_global.c +++ b/fs/ocfs2/quota_global.c @@ -648,10 +648,15 @@ int ocfs2_calc_qdel_credits(struct super_block *sb, int type) return 0; oinfo = sb_dqinfo(sb, type)->dqi_priv; - /* We modify tree, leaf block, global info, local chunk header, - * global and local inode */ - return oinfo->dqi_gi.dqi_qtree_depth + 2 + 1 + - 2 * OCFS2_INODE_UPDATE_CREDITS; + /* + * We modify tree, leaf block, global info, local chunk header, + * global and local inode; OCFS2_QINFO_WRITE_CREDITS already + * accounts for inode update + */ + return oinfo->dqi_gi.dqi_qtree_depth + + OCFS2_QINFO_WRITE_CREDITS + + 2 * OCFS2_QUOTA_BLOCK_UPDATE_CREDITS + + OCFS2_INODE_UPDATE_CREDITS; } static int ocfs2_release_dquot(struct dquot *dquot) @@ -701,7 +706,10 @@ int ocfs2_calc_qinit_credits(struct super_block *sb, int type) * global file we can modify info, tree and leaf block */ return ocfs2_calc_extend_credits(sb, &lfe->id2.i_list, 0) + ocfs2_calc_extend_credits(sb, &gfe->id2.i_list, 0) + - 3 + oinfo->dqi_gi.dqi_qtree_depth + 2; + OCFS2_LOCAL_QINFO_WRITE_CREDITS + + 2 * OCFS2_QUOTA_BLOCK_UPDATE_CREDITS + + oinfo->dqi_gi.dqi_qtree_depth + + 2 * OCFS2_QUOTA_BLOCK_UPDATE_CREDITS; } static int ocfs2_acquire_dquot(struct dquot *dquot) diff --git a/fs/ocfs2/quota_local.c b/fs/ocfs2/quota_local.c index 9d2993d..bdb09cb 100644 --- a/fs/ocfs2/quota_local.c +++ b/fs/ocfs2/quota_local.c @@ -101,7 +101,8 @@ static int ocfs2_modify_bh(struct inode *inode, struct buffer_head *bh, handle_t *handle; int status; - handle = ocfs2_start_trans(OCFS2_SB(sb), 1); + handle = ocfs2_start_trans(OCFS2_SB(sb), + OCFS2_QUOTA_BLOCK_UPDATE_CREDITS); if (IS_ERR(handle)) { status = PTR_ERR(handle); mlog_errno(status); @@ -611,7 +612,8 @@ int ocfs2_finish_quota_recovery(struct ocfs2_super *osb, goto out_bh; /* Mark quota file as clean if we are recovering quota file of * some other node. */ - handle = ocfs2_start_trans(osb, 1); + handle = ocfs2_start_trans(osb, + OCFS2_LOCAL_QINFO_WRITE_CREDITS); if (IS_ERR(handle)) { status = PTR_ERR(handle); mlog_errno(status); @@ -965,7 +967,10 @@ static struct ocfs2_quota_chunk *ocfs2_local_quota_add_chunk( mlog_errno(status); goto out; } - handle = ocfs2_start_trans(OCFS2_SB(sb), 3); + /* Local quota info and two new blocks we initialize */ + handle = ocfs2_start_trans(OCFS2_SB(sb), + OCFS2_LOCAL_QINFO_WRITE_CREDITS + + 2 * OCFS2_QUOTA_BLOCK_UPDATE_CREDITS); if (IS_ERR(handle)) { status = PTR_ERR(handle); mlog_errno(status); @@ -1128,7 +1133,10 @@ static struct ocfs2_quota_chunk *ocfs2_extend_local_quota_file( } ocfs2_set_new_buffer_uptodate(lqinode, bh); - handle = ocfs2_start_trans(OCFS2_SB(sb), 3); + /* Local quota info, chunk header and the new block we initialize */ + handle = ocfs2_start_trans(OCFS2_SB(sb), + OCFS2_LOCAL_QINFO_WRITE_CREDITS + + 2 * OCFS2_QUOTA_BLOCK_UPDATE_CREDITS); if (IS_ERR(handle)) { status = PTR_ERR(handle); mlog_errno(status); -- cgit v0.10.2 From 58cda884ecc87dcce18d463b0c8bd928dae63ad8 Mon Sep 17 00:00:00 2001 From: Jean Pihet Date: Fri, 24 Jul 2009 19:43:25 -0600 Subject: OMAP3 SDRC: add support for 2 SDRAM chip selects Some OMAP3 boards (Beagle Cx, Overo, RX51, Pandora) have 2 SDRAM parts connected to the SDRC. This patch adds the following: - add a new argument of type omap_sdrc_params struct* to omap2_init_common_hw and omap2_sdrc_init for the 2nd CS params - adapted the OMAP boards files to the new prototype of omap2_init_common_hw - add the SDRC 2nd CS registers offsets defines - adapt the sram sleep code to configure the SDRC for the 2nd CS Note: If the 2nd param to omap2_init_common_hw is NULL, then the parameters are not programmed into the SDRC CS1 registers Tested on 3430 SDP and Beagleboard rev C2 and B5, with suspend/resume and frequency changes (cpufreq). Signed-off-by: Jean Pihet Signed-off-by: Paul Walmsley diff --git a/arch/arm/mach-omap2/board-2430sdp.c b/arch/arm/mach-omap2/board-2430sdp.c index 9c3fdcd..8ec2a13 100644 --- a/arch/arm/mach-omap2/board-2430sdp.c +++ b/arch/arm/mach-omap2/board-2430sdp.c @@ -141,7 +141,7 @@ static inline void board_smc91x_init(void) static void __init omap_2430sdp_init_irq(void) { - omap2_init_common_hw(NULL); + omap2_init_common_hw(NULL, NULL); omap_init_irq(); omap_gpio_init(); } diff --git a/arch/arm/mach-omap2/board-3430sdp.c b/arch/arm/mach-omap2/board-3430sdp.c index 496a90e..ac262cd 100644 --- a/arch/arm/mach-omap2/board-3430sdp.c +++ b/arch/arm/mach-omap2/board-3430sdp.c @@ -169,7 +169,7 @@ static struct platform_device *sdp3430_devices[] __initdata = { static void __init omap_3430sdp_init_irq(void) { - omap2_init_common_hw(hyb18m512160af6_sdrc_params); + omap2_init_common_hw(hyb18m512160af6_sdrc_params, NULL); omap_init_irq(); omap_gpio_init(); } diff --git a/arch/arm/mach-omap2/board-4430sdp.c b/arch/arm/mach-omap2/board-4430sdp.c index 57e477b..b0c7402 100644 --- a/arch/arm/mach-omap2/board-4430sdp.c +++ b/arch/arm/mach-omap2/board-4430sdp.c @@ -59,7 +59,7 @@ static void __init gic_init_irq(void) static void __init omap_4430sdp_init_irq(void) { - omap2_init_common_hw(NULL); + omap2_init_common_hw(NULL, NULL); #ifdef CONFIG_OMAP_32K_TIMER omap2_gp_clockevent_set_gptimer(1); #endif diff --git a/arch/arm/mach-omap2/board-apollon.c b/arch/arm/mach-omap2/board-apollon.c index 06dfba8..dcfc20d 100644 --- a/arch/arm/mach-omap2/board-apollon.c +++ b/arch/arm/mach-omap2/board-apollon.c @@ -250,7 +250,7 @@ out: static void __init omap_apollon_init_irq(void) { - omap2_init_common_hw(NULL); + omap2_init_common_hw(NULL, NULL); omap_init_irq(); omap_gpio_init(); apollon_init_smc91x(); diff --git a/arch/arm/mach-omap2/board-generic.c b/arch/arm/mach-omap2/board-generic.c index 3492162..fd00aa0 100644 --- a/arch/arm/mach-omap2/board-generic.c +++ b/arch/arm/mach-omap2/board-generic.c @@ -33,7 +33,7 @@ static void __init omap_generic_init_irq(void) { - omap2_init_common_hw(NULL); + omap2_init_common_hw(NULL, NULL); omap_init_irq(); } diff --git a/arch/arm/mach-omap2/board-h4.c b/arch/arm/mach-omap2/board-h4.c index e7d017c..7b1d61d 100644 --- a/arch/arm/mach-omap2/board-h4.c +++ b/arch/arm/mach-omap2/board-h4.c @@ -270,7 +270,7 @@ static void __init h4_init_flash(void) static void __init omap_h4_init_irq(void) { - omap2_init_common_hw(NULL); + omap2_init_common_hw(NULL, NULL); omap_init_irq(); omap_gpio_init(); h4_init_flash(); diff --git a/arch/arm/mach-omap2/board-ldp.c b/arch/arm/mach-omap2/board-ldp.c index d8bc0a7..ea383f8 100644 --- a/arch/arm/mach-omap2/board-ldp.c +++ b/arch/arm/mach-omap2/board-ldp.c @@ -270,7 +270,7 @@ static inline void __init ldp_init_smsc911x(void) static void __init omap_ldp_init_irq(void) { - omap2_init_common_hw(NULL); + omap2_init_common_hw(NULL, NULL); omap_init_irq(); omap_gpio_init(); ldp_init_smsc911x(); diff --git a/arch/arm/mach-omap2/board-omap3beagle.c b/arch/arm/mach-omap2/board-omap3beagle.c index 991ac9c..4abefd9 100644 --- a/arch/arm/mach-omap2/board-omap3beagle.c +++ b/arch/arm/mach-omap2/board-omap3beagle.c @@ -282,7 +282,8 @@ static int __init omap3_beagle_i2c_init(void) static void __init omap3_beagle_init_irq(void) { - omap2_init_common_hw(mt46h32m32lf6_sdrc_params); + omap2_init_common_hw(mt46h32m32lf6_sdrc_params, + mt46h32m32lf6_sdrc_params); omap_init_irq(); #ifdef CONFIG_OMAP_32K_TIMER omap2_gp_clockevent_set_gptimer(12); diff --git a/arch/arm/mach-omap2/board-omap3evm.c b/arch/arm/mach-omap2/board-omap3evm.c index d3cc145..217e5a2 100644 --- a/arch/arm/mach-omap2/board-omap3evm.c +++ b/arch/arm/mach-omap2/board-omap3evm.c @@ -279,7 +279,7 @@ struct spi_board_info omap3evm_spi_board_info[] = { static void __init omap3_evm_init_irq(void) { - omap2_init_common_hw(mt46h32m32lf6_sdrc_params); + omap2_init_common_hw(mt46h32m32lf6_sdrc_params, NULL); omap_init_irq(); omap_gpio_init(); omap3evm_init_smc911x(); diff --git a/arch/arm/mach-omap2/board-omap3pandora.c b/arch/arm/mach-omap2/board-omap3pandora.c index e32aa23..9b991ce 100644 --- a/arch/arm/mach-omap2/board-omap3pandora.c +++ b/arch/arm/mach-omap2/board-omap3pandora.c @@ -310,7 +310,8 @@ static int __init omap3pandora_i2c_init(void) static void __init omap3pandora_init_irq(void) { - omap2_init_common_hw(mt46h32m32lf6_sdrc_params); + omap2_init_common_hw(mt46h32m32lf6_sdrc_params, + mt46h32m32lf6_sdrc_params); omap_init_irq(); omap_gpio_init(); } diff --git a/arch/arm/mach-omap2/board-overo.c b/arch/arm/mach-omap2/board-overo.c index dff5528..44bc1c5 100644 --- a/arch/arm/mach-omap2/board-overo.c +++ b/arch/arm/mach-omap2/board-overo.c @@ -360,7 +360,8 @@ static int __init overo_i2c_init(void) static void __init overo_init_irq(void) { - omap2_init_common_hw(mt46h32m32lf6_sdrc_params); + omap2_init_common_hw(mt46h32m32lf6_sdrc_params, + mt46h32m32lf6_sdrc_params); omap_init_irq(); omap_gpio_init(); } diff --git a/arch/arm/mach-omap2/board-rx51.c b/arch/arm/mach-omap2/board-rx51.c index 374ff63..591ae8a 100644 --- a/arch/arm/mach-omap2/board-rx51.c +++ b/arch/arm/mach-omap2/board-rx51.c @@ -61,7 +61,7 @@ static struct omap_board_config_kernel rx51_config[] = { static void __init rx51_init_irq(void) { - omap2_init_common_hw(NULL); + omap2_init_common_hw(NULL, NULL); omap_init_irq(); omap_gpio_init(); } diff --git a/arch/arm/mach-omap2/board-zoom2.c b/arch/arm/mach-omap2/board-zoom2.c index bcc0f76..427b7b8 100644 --- a/arch/arm/mach-omap2/board-zoom2.c +++ b/arch/arm/mach-omap2/board-zoom2.c @@ -25,7 +25,7 @@ static void __init omap_zoom2_init_irq(void) { - omap2_init_common_hw(NULL); + omap2_init_common_hw(NULL, NULL); omap_init_irq(); omap_gpio_init(); } diff --git a/arch/arm/mach-omap2/clock34xx.c b/arch/arm/mach-omap2/clock34xx.c index 045da92..1c6480d 100644 --- a/arch/arm/mach-omap2/clock34xx.c +++ b/arch/arm/mach-omap2/clock34xx.c @@ -725,7 +725,9 @@ static int omap3_core_dpll_m2_set_rate(struct clk *clk, unsigned long rate) u32 unlock_dll = 0; u32 c; unsigned long validrate, sdrcrate, mpurate; - struct omap_sdrc_params *sp; + struct omap_sdrc_params *sdrc_cs0; + struct omap_sdrc_params *sdrc_cs1; + int ret; if (!clk || !rate) return -EINVAL; @@ -743,8 +745,8 @@ static int omap3_core_dpll_m2_set_rate(struct clk *clk, unsigned long rate) else sdrcrate >>= ((clk->rate / rate) >> 1); - sp = omap2_sdrc_get_params(sdrcrate); - if (!sp) + ret = omap2_sdrc_get_params(sdrcrate, &sdrc_cs0, &sdrc_cs1); + if (ret) return -EINVAL; if (sdrcrate < MIN_SDRC_DLL_LOCK_FREQ) { @@ -765,12 +767,29 @@ static int omap3_core_dpll_m2_set_rate(struct clk *clk, unsigned long rate) pr_debug("clock: changing CORE DPLL rate from %lu to %lu\n", clk->rate, validrate); - pr_debug("clock: SDRC timing params used: %08x %08x %08x\n", - sp->rfr_ctrl, sp->actim_ctrla, sp->actim_ctrlb); - - omap3_configure_core_dpll(sp->rfr_ctrl, sp->actim_ctrla, - sp->actim_ctrlb, new_div, unlock_dll, c, - sp->mr, rate > clk->rate); + pr_debug("clock: SDRC CS0 timing params used:" + " RFR %08x CTRLA %08x CTRLB %08x MR %08x\n", + sdrc_cs0->rfr_ctrl, sdrc_cs0->actim_ctrla, + sdrc_cs0->actim_ctrlb, sdrc_cs0->mr); + if (sdrc_cs1) + pr_debug("clock: SDRC CS1 timing params used: " + " RFR %08x CTRLA %08x CTRLB %08x MR %08x\n", + sdrc_cs1->rfr_ctrl, sdrc_cs1->actim_ctrla, + sdrc_cs1->actim_ctrlb, sdrc_cs1->mr); + + if (sdrc_cs1) + omap3_configure_core_dpll( + new_div, unlock_dll, c, rate > clk->rate, + sdrc_cs0->rfr_ctrl, sdrc_cs0->actim_ctrla, + sdrc_cs0->actim_ctrlb, sdrc_cs0->mr, + sdrc_cs1->rfr_ctrl, sdrc_cs1->actim_ctrla, + sdrc_cs1->actim_ctrlb, sdrc_cs1->mr); + else + omap3_configure_core_dpll( + new_div, unlock_dll, c, rate > clk->rate, + sdrc_cs0->rfr_ctrl, sdrc_cs0->actim_ctrla, + sdrc_cs0->actim_ctrlb, sdrc_cs0->mr, + 0, 0, 0, 0); return 0; } diff --git a/arch/arm/mach-omap2/io.c b/arch/arm/mach-omap2/io.c index 3a86b0f..e9b9bcb 100644 --- a/arch/arm/mach-omap2/io.c +++ b/arch/arm/mach-omap2/io.c @@ -276,14 +276,15 @@ static int __init _omap2_init_reprogram_sdrc(void) return v; } -void __init omap2_init_common_hw(struct omap_sdrc_params *sp) +void __init omap2_init_common_hw(struct omap_sdrc_params *sdrc_cs0, + struct omap_sdrc_params *sdrc_cs1) { omap2_mux_init(); #ifndef CONFIG_ARCH_OMAP4 /* FIXME: Remove this once the clkdev is ready */ pwrdm_init(powerdomains_omap); clkdm_init(clockdomains_omap, clkdm_pwrdm_autodeps); omap2_clk_init(); - omap2_sdrc_init(sp); + omap2_sdrc_init(sdrc_cs0, sdrc_cs1); _omap2_init_reprogram_sdrc(); #endif gpmc_init(); diff --git a/arch/arm/mach-omap2/sdrc.c b/arch/arm/mach-omap2/sdrc.c index 2045441..2e9e38d 100644 --- a/arch/arm/mach-omap2/sdrc.c +++ b/arch/arm/mach-omap2/sdrc.c @@ -32,7 +32,7 @@ #include #include "sdrc.h" -static struct omap_sdrc_params *sdrc_init_params; +static struct omap_sdrc_params *sdrc_init_params_cs0, *sdrc_init_params_cs1; void __iomem *omap2_sdrc_base; void __iomem *omap2_sms_base; @@ -45,33 +45,49 @@ void __iomem *omap2_sms_base; /** * omap2_sdrc_get_params - return SDRC register values for a given clock rate * @r: SDRC clock rate (in Hz) + * @sdrc_cs0: chip select 0 ram timings ** + * @sdrc_cs1: chip select 1 ram timings ** * * Return pre-calculated values for the SDRC_ACTIM_CTRLA, - * SDRC_ACTIM_CTRLB, SDRC_RFR_CTRL, and SDRC_MR registers, for a given - * SDRC clock rate 'r'. These parameters control various timing - * delays in the SDRAM controller that are expressed in terms of the - * number of SDRC clock cycles to wait; hence the clock rate - * dependency. Note that sdrc_init_params must be sorted rate - * descending. Also assumes that both chip-selects use the same - * timing parameters. Returns a struct omap_sdrc_params * upon - * success, or NULL upon failure. + * SDRC_ACTIM_CTRLB, SDRC_RFR_CTRL and SDRC_MR registers in sdrc_cs[01] + * structs,for a given SDRC clock rate 'r'. + * These parameters control various timing delays in the SDRAM controller + * that are expressed in terms of the number of SDRC clock cycles to + * wait; hence the clock rate dependency. + * + * Supports 2 different timing parameters for both chip selects. + * + * Note 1: the sdrc_init_params_cs[01] must be sorted rate descending. + * Note 2: If sdrc_init_params_cs_1 is not NULL it must be of same size + * as sdrc_init_params_cs_0. + * + * Fills in the struct omap_sdrc_params * for each chip select. + * Returns 0 upon success or -1 upon failure. */ -struct omap_sdrc_params *omap2_sdrc_get_params(unsigned long r) +int omap2_sdrc_get_params(unsigned long r, + struct omap_sdrc_params **sdrc_cs0, + struct omap_sdrc_params **sdrc_cs1) { - struct omap_sdrc_params *sp; + struct omap_sdrc_params *sp0, *sp1; - if (!sdrc_init_params) - return NULL; + if (!sdrc_init_params_cs0) + return -1; - sp = sdrc_init_params; + sp0 = sdrc_init_params_cs0; + sp1 = sdrc_init_params_cs1; - while (sp->rate && sp->rate != r) - sp++; + while (sp0->rate && sp0->rate != r) { + sp0++; + if (sdrc_init_params_cs1) + sp1++; + } - if (!sp->rate) - return NULL; + if (!sp0->rate) + return -1; - return sp; + *sdrc_cs0 = sp0; + *sdrc_cs1 = sp1; + return 0; } @@ -83,13 +99,15 @@ void __init omap2_set_globals_sdrc(struct omap_globals *omap2_globals) /** * omap2_sdrc_init - initialize SMS, SDRC devices on boot - * @sp: pointer to a null-terminated list of struct omap_sdrc_params + * @sdrc_cs[01]: pointers to a null-terminated list of struct omap_sdrc_params + * Support for 2 chip selects timings * * Turn on smart idle modes for SDRAM scheduler and controller. * Program a known-good configuration for the SDRC to deal with buggy * bootloaders. */ -void __init omap2_sdrc_init(struct omap_sdrc_params *sp) +void __init omap2_sdrc_init(struct omap_sdrc_params *sdrc_cs0, + struct omap_sdrc_params *sdrc_cs1) { u32 l; @@ -103,7 +121,8 @@ void __init omap2_sdrc_init(struct omap_sdrc_params *sp) l |= (0x2 << 3); sdrc_write_reg(l, SDRC_SYSCONFIG); - sdrc_init_params = sp; + sdrc_init_params_cs0 = sdrc_cs0; + sdrc_init_params_cs1 = sdrc_cs1; /* XXX Enable SRFRONIDLEREQ here also? */ l = (1 << SDRC_POWER_EXTCLKDIS_SHIFT) | diff --git a/arch/arm/mach-omap2/sram34xx.S b/arch/arm/mach-omap2/sram34xx.S index f41f8d9..3aef744 100644 --- a/arch/arm/mach-omap2/sram34xx.S +++ b/arch/arm/mach-omap2/sram34xx.S @@ -36,7 +36,7 @@ .text -/* r4 parameters */ +/* r1 parameters */ #define SDRC_NO_UNLOCK_DLL 0x0 #define SDRC_UNLOCK_DLL 0x1 @@ -71,40 +71,71 @@ /* * omap3_sram_configure_core_dpll - change DPLL3 M2 divider - * r0 = new SDRC_RFR_CTRL register contents - * r1 = new SDRC_ACTIM_CTRLA register contents - * r2 = new SDRC_ACTIM_CTRLB register contents - * r3 = new M2 divider setting (only 1 and 2 supported right now) - * r4 = unlock SDRC DLL? (1 = yes, 0 = no). Only unlock DLL for + * + * Params passed in registers: + * r0 = new M2 divider setting (only 1 and 2 supported right now) + * r1 = unlock SDRC DLL? (1 = yes, 0 = no). Only unlock DLL for * SDRC rates < 83MHz - * r5 = number of MPU cycles to wait for SDRC to stabilize after + * r2 = number of MPU cycles to wait for SDRC to stabilize after * reprogramming the SDRC when switching to a slower MPU speed - * r6 = new SDRC_MR_0 register value - * r7 = increasing SDRC rate? (1 = yes, 0 = no) + * r3 = increasing SDRC rate? (1 = yes, 0 = no) + * + * Params passed via the stack. The needed params will be copied in SRAM + * before use by the code in SRAM (SDRAM is not accessible during SDRC + * reconfiguration): + * new SDRC_RFR_CTRL_0 register contents + * new SDRC_ACTIM_CTRL_A_0 register contents + * new SDRC_ACTIM_CTRL_B_0 register contents + * new SDRC_MR_0 register value + * new SDRC_RFR_CTRL_1 register contents + * new SDRC_ACTIM_CTRL_A_1 register contents + * new SDRC_ACTIM_CTRL_B_1 register contents + * new SDRC_MR_1 register value * + * If the param SDRC_RFR_CTRL_1 is 0, the parameters + * are not programmed into the SDRC CS1 registers */ ENTRY(omap3_sram_configure_core_dpll) stmfd sp!, {r1-r12, lr} @ store regs to stack - ldr r4, [sp, #52] @ pull extra args off the stack - ldr r5, [sp, #56] @ load extra args from the stack - ldr r6, [sp, #60] @ load extra args from the stack - ldr r7, [sp, #64] @ load extra args from the stack + + @ pull the extra args off the stack + @ and store them in SRAM + ldr r4, [sp, #52] + str r4, omap_sdrc_rfr_ctrl_0_val + ldr r4, [sp, #56] + str r4, omap_sdrc_actim_ctrl_a_0_val + ldr r4, [sp, #60] + str r4, omap_sdrc_actim_ctrl_b_0_val + ldr r4, [sp, #64] + str r4, omap_sdrc_mr_0_val + ldr r4, [sp, #68] + str r4, omap_sdrc_rfr_ctrl_1_val + cmp r4, #0 @ if SDRC_RFR_CTRL_1 is 0, + beq skip_cs1_params @ do not use cs1 params + ldr r4, [sp, #72] + str r4, omap_sdrc_actim_ctrl_a_1_val + ldr r4, [sp, #76] + str r4, omap_sdrc_actim_ctrl_b_1_val + ldr r4, [sp, #80] + str r4, omap_sdrc_mr_1_val +skip_cs1_params: dsb @ flush buffered writes to interconnect - cmp r7, #1 @ if increasing SDRC clk rate, + + cmp r3, #1 @ if increasing SDRC clk rate, bleq configure_sdrc @ program the SDRC regs early (for RFR) - cmp r4, #SDRC_UNLOCK_DLL @ set the intended DLL state + cmp r1, #SDRC_UNLOCK_DLL @ set the intended DLL state bleq unlock_dll blne lock_dll bl sdram_in_selfrefresh @ put SDRAM in self refresh, idle SDRC bl configure_core_dpll @ change the DPLL3 M2 divider bl enable_sdrc @ take SDRC out of idle - cmp r4, #SDRC_UNLOCK_DLL @ wait for DLL status to change + cmp r1, #SDRC_UNLOCK_DLL @ wait for DLL status to change bleq wait_dll_unlock blne wait_dll_lock - cmp r7, #1 @ if increasing SDRC clk rate, + cmp r3, #1 @ if increasing SDRC clk rate, beq return_to_sdram @ return to SDRAM code, otherwise, bl configure_sdrc @ reprogram SDRC regs now - mov r12, r5 + mov r12, r2 bl wait_clk_stable @ wait for SDRC to stabilize return_to_sdram: isb @ prevent speculative exec past here @@ -149,7 +180,7 @@ configure_core_dpll: ldr r12, [r11] ldr r10, core_m2_mask_val @ modify m2 for core dpll and r12, r12, r10 - orr r12, r12, r3, lsl #CORE_DPLL_CLKOUT_DIV_SHIFT + orr r12, r12, r0, lsl #CORE_DPLL_CLKOUT_DIV_SHIFT str r12, [r11] ldr r12, [r11] @ posted-write barrier for CM bx lr @@ -187,15 +218,34 @@ wait_dll_unlock: bne wait_dll_unlock bx lr configure_sdrc: - ldr r11, omap3_sdrc_rfr_ctrl - str r0, [r11] - ldr r11, omap3_sdrc_actim_ctrla - str r1, [r11] - ldr r11, omap3_sdrc_actim_ctrlb - str r2, [r11] + ldr r12, omap_sdrc_rfr_ctrl_0_val @ fetch value from SRAM + ldr r11, omap3_sdrc_rfr_ctrl_0 @ fetch addr from SRAM + str r12, [r11] @ store + ldr r12, omap_sdrc_actim_ctrl_a_0_val + ldr r11, omap3_sdrc_actim_ctrl_a_0 + str r12, [r11] + ldr r12, omap_sdrc_actim_ctrl_b_0_val + ldr r11, omap3_sdrc_actim_ctrl_b_0 + str r12, [r11] + ldr r12, omap_sdrc_mr_0_val ldr r11, omap3_sdrc_mr_0 - str r6, [r11] - ldr r6, [r11] @ posted-write barrier for SDRC + str r12, [r11] + ldr r12, omap_sdrc_rfr_ctrl_1_val + cmp r12, #0 @ if SDRC_RFR_CTRL_1 is 0, + beq skip_cs1_prog @ do not program cs1 params + ldr r11, omap3_sdrc_rfr_ctrl_1 + str r12, [r11] + ldr r12, omap_sdrc_actim_ctrl_a_1_val + ldr r11, omap3_sdrc_actim_ctrl_a_1 + str r12, [r11] + ldr r12, omap_sdrc_actim_ctrl_b_1_val + ldr r11, omap3_sdrc_actim_ctrl_b_1 + str r12, [r11] + ldr r12, omap_sdrc_mr_1_val + ldr r11, omap3_sdrc_mr_1 + str r12, [r11] +skip_cs1_prog: + ldr r12, [r11] @ posted-write barrier for SDRC bx lr omap3_sdrc_power: @@ -206,14 +256,40 @@ omap3_cm_idlest1_core: .word OMAP34XX_CM_REGADDR(CORE_MOD, CM_IDLEST) omap3_cm_iclken1_core: .word OMAP34XX_CM_REGADDR(CORE_MOD, CM_ICLKEN1) -omap3_sdrc_rfr_ctrl: + +omap3_sdrc_rfr_ctrl_0: .word OMAP34XX_SDRC_REGADDR(SDRC_RFR_CTRL_0) -omap3_sdrc_actim_ctrla: +omap3_sdrc_rfr_ctrl_1: + .word OMAP34XX_SDRC_REGADDR(SDRC_RFR_CTRL_1) +omap3_sdrc_actim_ctrl_a_0: .word OMAP34XX_SDRC_REGADDR(SDRC_ACTIM_CTRL_A_0) -omap3_sdrc_actim_ctrlb: +omap3_sdrc_actim_ctrl_a_1: + .word OMAP34XX_SDRC_REGADDR(SDRC_ACTIM_CTRL_A_1) +omap3_sdrc_actim_ctrl_b_0: .word OMAP34XX_SDRC_REGADDR(SDRC_ACTIM_CTRL_B_0) +omap3_sdrc_actim_ctrl_b_1: + .word OMAP34XX_SDRC_REGADDR(SDRC_ACTIM_CTRL_B_1) omap3_sdrc_mr_0: .word OMAP34XX_SDRC_REGADDR(SDRC_MR_0) +omap3_sdrc_mr_1: + .word OMAP34XX_SDRC_REGADDR(SDRC_MR_1) +omap_sdrc_rfr_ctrl_0_val: + .word 0xDEADBEEF +omap_sdrc_rfr_ctrl_1_val: + .word 0xDEADBEEF +omap_sdrc_actim_ctrl_a_0_val: + .word 0xDEADBEEF +omap_sdrc_actim_ctrl_a_1_val: + .word 0xDEADBEEF +omap_sdrc_actim_ctrl_b_0_val: + .word 0xDEADBEEF +omap_sdrc_actim_ctrl_b_1_val: + .word 0xDEADBEEF +omap_sdrc_mr_0_val: + .word 0xDEADBEEF +omap_sdrc_mr_1_val: + .word 0xDEADBEEF + omap3_sdrc_dlla_status: .word OMAP34XX_SDRC_REGADDR(SDRC_DLLA_STATUS) omap3_sdrc_dlla_ctrl: @@ -223,3 +299,4 @@ core_m2_mask_val: ENTRY(omap3_sram_configure_core_dpll_sz) .word . - omap3_sram_configure_core_dpll + diff --git a/arch/arm/plat-omap/include/mach/io.h b/arch/arm/plat-omap/include/mach/io.h index 73f483d..21fb0ef 100644 --- a/arch/arm/plat-omap/include/mach/io.h +++ b/arch/arm/plat-omap/include/mach/io.h @@ -228,7 +228,8 @@ extern void omap1_map_common_io(void); extern void omap1_init_common_hw(void); extern void omap2_map_common_io(void); -extern void omap2_init_common_hw(struct omap_sdrc_params *sp); +extern void omap2_init_common_hw(struct omap_sdrc_params *sdrc_cs0, + struct omap_sdrc_params *sdrc_cs1); #define __arch_ioremap(p,s,t) omap_ioremap(p,s,t) #define __arch_iounmap(v) omap_iounmap(v) diff --git a/arch/arm/plat-omap/include/mach/sdrc.h b/arch/arm/plat-omap/include/mach/sdrc.h index adc7352..0be18e4 100644 --- a/arch/arm/plat-omap/include/mach/sdrc.h +++ b/arch/arm/plat-omap/include/mach/sdrc.h @@ -30,6 +30,10 @@ #define SDRC_ACTIM_CTRL_A_0 0x09c #define SDRC_ACTIM_CTRL_B_0 0x0a0 #define SDRC_RFR_CTRL_0 0x0a4 +#define SDRC_MR_1 0x0B4 +#define SDRC_ACTIM_CTRL_A_1 0x0C4 +#define SDRC_ACTIM_CTRL_B_1 0x0C8 +#define SDRC_RFR_CTRL_1 0x0D4 /* * These values represent the number of memory clock cycles between @@ -102,8 +106,11 @@ struct omap_sdrc_params { u32 mr; }; -void __init omap2_sdrc_init(struct omap_sdrc_params *sp); -struct omap_sdrc_params *omap2_sdrc_get_params(unsigned long r); +void __init omap2_sdrc_init(struct omap_sdrc_params *sdrc_cs0, + struct omap_sdrc_params *sdrc_cs1); +int omap2_sdrc_get_params(unsigned long r, + struct omap_sdrc_params **sdrc_cs0, + struct omap_sdrc_params **sdrc_cs1); #ifdef CONFIG_ARCH_OMAP2 diff --git a/arch/arm/plat-omap/include/mach/sram.h b/arch/arm/plat-omap/include/mach/sram.h index 4d53cc5..8974e3f 100644 --- a/arch/arm/plat-omap/include/mach/sram.h +++ b/arch/arm/plat-omap/include/mach/sram.h @@ -21,11 +21,12 @@ extern void omap2_sram_reprogram_sdrc(u32 perf_level, u32 dll_val, u32 mem_type); extern u32 omap2_set_prcm(u32 dpll_ctrl_val, u32 sdrc_rfr_val, int bypass); -extern u32 omap3_configure_core_dpll(u32 sdrc_rfr_ctrl, - u32 sdrc_actim_ctrla, - u32 sdrc_actim_ctrlb, u32 m2, - u32 unlock_dll, u32 f, u32 sdrc_mr, - u32 inc); +extern u32 omap3_configure_core_dpll( + u32 m2, u32 unlock_dll, u32 f, u32 inc, + u32 sdrc_rfr_ctrl_0, u32 sdrc_actim_ctrl_a_0, + u32 sdrc_actim_ctrl_b_0, u32 sdrc_mr_0, + u32 sdrc_rfr_ctrl_1, u32 sdrc_actim_ctrl_a_1, + u32 sdrc_actim_ctrl_b_1, u32 sdrc_mr_1); /* Do not use these */ extern void omap1_sram_reprogram_clock(u32 ckctl, u32 dpllctl); @@ -59,12 +60,12 @@ extern void omap243x_sram_reprogram_sdrc(u32 perf_level, u32 dll_val, u32 mem_type); extern unsigned long omap243x_sram_reprogram_sdrc_sz; - -extern u32 omap3_sram_configure_core_dpll(u32 sdrc_rfr_ctrl, - u32 sdrc_actim_ctrla, - u32 sdrc_actim_ctrlb, u32 m2, - u32 unlock_dll, u32 f, u32 sdrc_mr, - u32 inc); +extern u32 omap3_sram_configure_core_dpll( + u32 m2, u32 unlock_dll, u32 f, u32 inc, + u32 sdrc_rfr_ctrl_0, u32 sdrc_actim_ctrl_a_0, + u32 sdrc_actim_ctrl_b_0, u32 sdrc_mr_0, + u32 sdrc_rfr_ctrl_1, u32 sdrc_actim_ctrl_a_1, + u32 sdrc_actim_ctrl_b_1, u32 sdrc_mr_1); extern unsigned long omap3_sram_configure_core_dpll_sz; #endif diff --git a/arch/arm/plat-omap/sram.c b/arch/arm/plat-omap/sram.c index 4ea7380..4e781c9 100644 --- a/arch/arm/plat-omap/sram.c +++ b/arch/arm/plat-omap/sram.c @@ -373,20 +373,26 @@ static inline int omap243x_sram_init(void) #ifdef CONFIG_ARCH_OMAP3 -static u32 (*_omap3_sram_configure_core_dpll)(u32 sdrc_rfr_ctrl, - u32 sdrc_actim_ctrla, - u32 sdrc_actim_ctrlb, - u32 m2, u32 unlock_dll, - u32 f, u32 sdrc_mr, u32 inc); -u32 omap3_configure_core_dpll(u32 sdrc_rfr_ctrl, u32 sdrc_actim_ctrla, - u32 sdrc_actim_ctrlb, u32 m2, u32 unlock_dll, - u32 f, u32 sdrc_mr, u32 inc) +static u32 (*_omap3_sram_configure_core_dpll)( + u32 m2, u32 unlock_dll, u32 f, u32 inc, + u32 sdrc_rfr_ctrl_0, u32 sdrc_actim_ctrl_a_0, + u32 sdrc_actim_ctrl_b_0, u32 sdrc_mr_0, + u32 sdrc_rfr_ctrl_1, u32 sdrc_actim_ctrl_a_1, + u32 sdrc_actim_ctrl_b_1, u32 sdrc_mr_1); + +u32 omap3_configure_core_dpll(u32 m2, u32 unlock_dll, u32 f, u32 inc, + u32 sdrc_rfr_ctrl_0, u32 sdrc_actim_ctrl_a_0, + u32 sdrc_actim_ctrl_b_0, u32 sdrc_mr_0, + u32 sdrc_rfr_ctrl_1, u32 sdrc_actim_ctrl_a_1, + u32 sdrc_actim_ctrl_b_1, u32 sdrc_mr_1) { BUG_ON(!_omap3_sram_configure_core_dpll); - return _omap3_sram_configure_core_dpll(sdrc_rfr_ctrl, - sdrc_actim_ctrla, - sdrc_actim_ctrlb, m2, - unlock_dll, f, sdrc_mr, inc); + return _omap3_sram_configure_core_dpll( + m2, unlock_dll, f, inc, + sdrc_rfr_ctrl_0, sdrc_actim_ctrl_a_0, + sdrc_actim_ctrl_b_0, sdrc_mr_0, + sdrc_rfr_ctrl_1, sdrc_actim_ctrl_a_1, + sdrc_actim_ctrl_b_1, sdrc_mr_1); } /* REVISIT: Should this be same as omap34xx_sram_init() after off-idle? */ -- cgit v0.10.2 From 9fb97412c3be5d0d1dd0e9d7c5268469e4c942aa Mon Sep 17 00:00:00 2001 From: Jean Pihet Date: Fri, 24 Jul 2009 19:43:25 -0600 Subject: OMAP3: Setup MUX settings for SDRC CKE signals This patches ensures the MUX settings are correct for the SDRC CKE signals to SDRAM. This allows the self-refresh to work when 2 chip-selects are in use. A warning is thrown away in case the initial muxing is incorrect, in order to track faulty or old-dated bootloaders. Note: The CONFIG_OMAP_MUX and CONFIG_OMAP_MUX_WARNINGS options must be enabled for the mux code to have effect. Signed-off-by: Jean Pihet Signed-off-by: Paul Walmsley diff --git a/arch/arm/mach-omap2/board-omap3beagle.c b/arch/arm/mach-omap2/board-omap3beagle.c index 4abefd9..e00ba12 100644 --- a/arch/arm/mach-omap2/board-omap3beagle.c +++ b/arch/arm/mach-omap2/board-omap3beagle.c @@ -409,6 +409,10 @@ static void __init omap3_beagle_init(void) usb_musb_init(); omap3beagle_flash_init(); + + /* Ensure SDRC pins are mux'd for self-refresh */ + omap_cfg_reg(H16_34XX_SDRC_CKE0); + omap_cfg_reg(H17_34XX_SDRC_CKE1); } static void __init omap3_beagle_map_io(void) diff --git a/arch/arm/mach-omap2/board-omap3pandora.c b/arch/arm/mach-omap2/board-omap3pandora.c index 9b991ce..864ee3d 100644 --- a/arch/arm/mach-omap2/board-omap3pandora.c +++ b/arch/arm/mach-omap2/board-omap3pandora.c @@ -40,6 +40,7 @@ #include #include #include +#include #include "sdram-micron-mt46h32m32lf-6.h" #include "mmc-twl4030.h" @@ -398,6 +399,10 @@ static void __init omap3pandora_init(void) omap3pandora_ads7846_init(); pandora_keys_gpio_init(); usb_musb_init(); + + /* Ensure SDRC pins are mux'd for self-refresh */ + omap_cfg_reg(H16_34XX_SDRC_CKE0); + omap_cfg_reg(H17_34XX_SDRC_CKE1); } static void __init omap3pandora_map_io(void) diff --git a/arch/arm/mach-omap2/board-overo.c b/arch/arm/mach-omap2/board-overo.c index 44bc1c5..6b171b3 100644 --- a/arch/arm/mach-omap2/board-overo.c +++ b/arch/arm/mach-omap2/board-overo.c @@ -44,6 +44,7 @@ #include #include #include +#include #include #include "sdram-micron-mt46h32m32lf-6.h" @@ -396,6 +397,10 @@ static void __init overo_init(void) overo_ads7846_init(); overo_init_smsc911x(); + /* Ensure SDRC pins are mux'd for self-refresh */ + omap_cfg_reg(H16_34XX_SDRC_CKE0); + omap_cfg_reg(H17_34XX_SDRC_CKE1); + if ((gpio_request(OVERO_GPIO_W2W_NRESET, "OVERO_GPIO_W2W_NRESET") == 0) && (gpio_direction_output(OVERO_GPIO_W2W_NRESET, 1) == 0)) { diff --git a/arch/arm/mach-omap2/board-rx51.c b/arch/arm/mach-omap2/board-rx51.c index 591ae8a..1c9e07f 100644 --- a/arch/arm/mach-omap2/board-rx51.c +++ b/arch/arm/mach-omap2/board-rx51.c @@ -75,6 +75,10 @@ static void __init rx51_init(void) omap_serial_init(); usb_musb_init(); rx51_peripherals_init(); + + /* Ensure SDRC pins are mux'd for self-refresh */ + omap_cfg_reg(H16_34XX_SDRC_CKE0); + omap_cfg_reg(H17_34XX_SDRC_CKE1); } static void __init rx51_map_io(void) diff --git a/arch/arm/mach-omap2/mux.c b/arch/arm/mach-omap2/mux.c index 026c4fc..43d6b92 100644 --- a/arch/arm/mach-omap2/mux.c +++ b/arch/arm/mach-omap2/mux.c @@ -486,6 +486,12 @@ MUX_CFG_34XX("H19_34XX_GPIO164_OUT", 0x19c, OMAP34XX_MUX_MODE4 | OMAP34XX_PIN_OUTPUT) MUX_CFG_34XX("J25_34XX_GPIO170", 0x1c6, OMAP34XX_MUX_MODE4 | OMAP34XX_PIN_INPUT) + +/* OMAP3 SDRC CKE signals to SDR/DDR ram chips */ +MUX_CFG_34XX("H16_34XX_SDRC_CKE0", 0x262, + OMAP34XX_MUX_MODE0 | OMAP34XX_PIN_OUTPUT) +MUX_CFG_34XX("H17_34XX_SDRC_CKE1", 0x264, + OMAP34XX_MUX_MODE0 | OMAP34XX_PIN_OUTPUT) }; #define OMAP34XX_PINS_SZ ARRAY_SIZE(omap34xx_pins) diff --git a/arch/arm/plat-omap/include/mach/mux.h b/arch/arm/plat-omap/include/mach/mux.h index 85a6217..80281c4 100644 --- a/arch/arm/plat-omap/include/mach/mux.h +++ b/arch/arm/plat-omap/include/mach/mux.h @@ -853,6 +853,10 @@ enum omap34xx_index { AE5_34XX_GPIO143, H19_34XX_GPIO164_OUT, J25_34XX_GPIO170, + + /* OMAP3 SDRC CKE signals to SDR/DDR ram chips */ + H16_34XX_SDRC_CKE0, + H17_34XX_SDRC_CKE1, }; struct omap_mux_cfg { -- cgit v0.10.2 From 75f251e3d0803b028f3474fdc75be0994c377ab5 Mon Sep 17 00:00:00 2001 From: Paul Walmsley Date: Fri, 24 Jul 2009 19:44:01 -0600 Subject: OMAP2/3 SDRC: don't set SDRC_POWER.PWDENA on boot Stop setting SDRC_POWER.PWDENA on boot. There is a nasty erratum (34xx erratum 1.150) that can cause memory corruption if PWDENA is enabled. Based originally on a patch from Samu P. Onkalo . Tested on BeagleBoard rev C2. Signed-off-by: Paul Walmsley Cc: Samu P. Onkalo diff --git a/arch/arm/mach-omap2/sdrc.c b/arch/arm/mach-omap2/sdrc.c index 2e9e38d..9e3bd4f 100644 --- a/arch/arm/mach-omap2/sdrc.c +++ b/arch/arm/mach-omap2/sdrc.c @@ -125,8 +125,11 @@ void __init omap2_sdrc_init(struct omap_sdrc_params *sdrc_cs0, sdrc_init_params_cs1 = sdrc_cs1; /* XXX Enable SRFRONIDLEREQ here also? */ + /* + * PWDENA should not be set due to 34xx erratum 1.150 - PWDENA + * can cause random memory corruption + */ l = (1 << SDRC_POWER_EXTCLKDIS_SHIFT) | - (1 << SDRC_POWER_PWDENA_SHIFT) | (1 << SDRC_POWER_PAGEPOLICY_SHIFT); sdrc_write_reg(l, SDRC_POWER); } diff --git a/arch/arm/mach-omap2/sram34xx.S b/arch/arm/mach-omap2/sram34xx.S index 3aef744..9c2d046 100644 --- a/arch/arm/mach-omap2/sram34xx.S +++ b/arch/arm/mach-omap2/sram34xx.S @@ -58,7 +58,6 @@ /* SDRC_POWER bit settings */ #define SRFRONIDLEREQ_MASK 0x40 -#define PWDENA_MASK 0x4 /* CM_IDLEST1_CORE bit settings */ #define ST_SDRC_MASK 0x2 @@ -160,7 +159,6 @@ sdram_in_selfrefresh: ldr r12, [r11] @ read the contents of SDRC_POWER mov r9, r12 @ keep a copy of SDRC_POWER bits orr r12, r12, #SRFRONIDLEREQ_MASK @ enable self refresh on idle - bic r12, r12, #PWDENA_MASK @ clear PWDENA str r12, [r11] @ write back to SDRC_POWER register ldr r12, [r11] @ posted-write barrier for SDRC idle_sdrc: -- cgit v0.10.2 From 8ff120e5303e27e03aba7b774e86fd43eaf90376 Mon Sep 17 00:00:00 2001 From: Rajendra Nayak Date: Fri, 24 Jul 2009 19:44:01 -0600 Subject: OMAP3 SDRC: Fix freeze when scaling CORE dpll to < 83Mhz This patch fixes a bug in the CORE dpll scaling sequence which was errouneously clearing some bits in the SDRC DLLA CTRL register and hence causing a freeze. The issue was observed only on platforms which scale CORE dpll to < 83Mhz and hence program the DLL in fixed delay mode. Issue reported by Limei Wang , with debugging assistance from Richard Woodruff and Girish Ghongdemath . Signed-off-by: Rajendra Nayak Cc: Limei Wang Cc: Richard Woodruff Cc: Girish Ghongdemath Signed-off-by: Paul Walmsley [paul@pwsan.com: updated patch description to include collaboration credits] diff --git a/arch/arm/mach-omap2/sram34xx.S b/arch/arm/mach-omap2/sram34xx.S index 9c2d046..e6b1125 100644 --- a/arch/arm/mach-omap2/sram34xx.S +++ b/arch/arm/mach-omap2/sram34xx.S @@ -143,7 +143,7 @@ return_to_sdram: unlock_dll: ldr r11, omap3_sdrc_dlla_ctrl ldr r12, [r11] - and r12, r12, #FIXEDDELAY_MASK + bic r12, r12, #FIXEDDELAY_MASK orr r12, r12, #FIXEDDELAY_DEFAULT orr r12, r12, #DLLIDLE_MASK str r12, [r11] @ (no OCP barrier needed) -- cgit v0.10.2 From df56556e571234cf26072cd58c01ac3520986b44 Mon Sep 17 00:00:00 2001 From: Rajendra Nayak Date: Fri, 24 Jul 2009 19:44:02 -0600 Subject: OMAP3 SDRC: Move the clk stabilization delay to the right place The clock stabilization delay post a M2 divider change is needed even before a SDRC interface clock re-enable and not only before jumping back to SDRAM. Signed-off-by: Rajendra Nayak Signed-off-by: Paul Walmsley diff --git a/arch/arm/mach-omap2/sram34xx.S b/arch/arm/mach-omap2/sram34xx.S index e6b1125..82aa4a3 100644 --- a/arch/arm/mach-omap2/sram34xx.S +++ b/arch/arm/mach-omap2/sram34xx.S @@ -127,6 +127,8 @@ skip_cs1_params: blne lock_dll bl sdram_in_selfrefresh @ put SDRAM in self refresh, idle SDRC bl configure_core_dpll @ change the DPLL3 M2 divider + mov r12, r2 + bl wait_clk_stable @ wait for SDRC to stabilize bl enable_sdrc @ take SDRC out of idle cmp r1, #SDRC_UNLOCK_DLL @ wait for DLL status to change bleq wait_dll_unlock @@ -134,8 +136,6 @@ skip_cs1_params: cmp r3, #1 @ if increasing SDRC clk rate, beq return_to_sdram @ return to SDRAM code, otherwise, bl configure_sdrc @ reprogram SDRC regs now - mov r12, r2 - bl wait_clk_stable @ wait for SDRC to stabilize return_to_sdram: isb @ prevent speculative exec past here mov r0, #0 @ return value -- cgit v0.10.2 From 72350b29a4c0debfc27c2edbeed9b4ff3f935dd4 Mon Sep 17 00:00:00 2001 From: Paul Walmsley Date: Fri, 24 Jul 2009 19:44:03 -0600 Subject: OMAP2/3 clock: split, rename omap2_wait_clock_ready() Some OMAP2/3 hardware modules have CM_IDLEST attributes that are not handled by the current omap2_wait_clock_ready() code. In preparation for patches that fix the unusual devices, rename the function omap2_wait_clock_ready() to omap2_wait_module_ready() and split it into three parts: 1. A clkops-specific companion clock return function (by default, omap2_clk_dflt_find_companion()) 2. A clkops-specific CM_IDLEST register address and bit shift return function (by default, omap2_clk_dflt_find_idlest()) 3. Code to wait for the CM to indicate that the module is ready (omap2_cm_wait_idlest()) Clocks can now specify their own custom find_companion() and find_idlest() functions; used in subsequent patches. Signed-off-by: Paul Walmsley diff --git a/arch/arm/mach-omap2/clock.c b/arch/arm/mach-omap2/clock.c index b0665f1..456e2ad 100644 --- a/arch/arm/mach-omap2/clock.c +++ b/arch/arm/mach-omap2/clock.c @@ -27,6 +27,7 @@ #include #include #include +#include #include #include @@ -38,8 +39,6 @@ #include "cm-regbits-24xx.h" #include "cm-regbits-34xx.h" -#define MAX_CLOCK_ENABLE_WAIT 100000 - /* DPLL rate rounding: minimum DPLL multiplier, divider values */ #define DPLL_MIN_MULTIPLIER 1 #define DPLL_MIN_DIVIDER 1 @@ -274,83 +273,97 @@ unsigned long omap2_fixed_divisor_recalc(struct clk *clk) } /** - * omap2_wait_clock_ready - wait for clock to enable - * @reg: physical address of clock IDLEST register - * @mask: value to mask against to determine if the clock is active - * @name: name of the clock (for printk) + * omap2_clk_dflt_find_companion - find companion clock to @clk + * @clk: struct clk * to find the companion clock of + * @other_reg: void __iomem ** to return the companion clock CM_*CLKEN va in + * @other_bit: u8 ** to return the companion clock bit shift in + * + * Note: We don't need special code here for INVERT_ENABLE for the + * time being since INVERT_ENABLE only applies to clocks enabled by + * CM_CLKEN_PLL * - * Returns 1 if the clock enabled in time, or 0 if it failed to enable - * in roughly MAX_CLOCK_ENABLE_WAIT microseconds. + * Convert CM_ICLKEN* <-> CM_FCLKEN*. This conversion assumes it's + * just a matter of XORing the bits. + * + * Some clocks don't have companion clocks. For example, modules with + * only an interface clock (such as MAILBOXES) don't have a companion + * clock. Right now, this code relies on the hardware exporting a bit + * in the correct companion register that indicates that the + * nonexistent 'companion clock' is active. Future patches will + * associate this type of code with per-module data structures to + * avoid this issue, and remove the casts. No return value. */ -int omap2_wait_clock_ready(void __iomem *reg, u32 mask, const char *name) +void omap2_clk_dflt_find_companion(struct clk *clk, void __iomem **other_reg, + u8 *other_bit) { - int i = 0; - int ena = 0; + u32 r; /* - * 24xx uses 0 to indicate not ready, and 1 to indicate ready. - * 34xx reverses this, just to keep us on our toes + * Convert CM_ICLKEN* <-> CM_FCLKEN*. This conversion assumes + * it's just a matter of XORing the bits. */ - if (cpu_mask & (RATE_IN_242X | RATE_IN_243X)) - ena = mask; - else if (cpu_mask & RATE_IN_343X) - ena = 0; - - /* Wait for lock */ - while (((__raw_readl(reg) & mask) != ena) && - (i++ < MAX_CLOCK_ENABLE_WAIT)) { - udelay(1); - } - - if (i <= MAX_CLOCK_ENABLE_WAIT) - pr_debug("Clock %s stable after %d loops\n", name, i); - else - printk(KERN_ERR "Clock %s didn't enable in %d tries\n", - name, MAX_CLOCK_ENABLE_WAIT); - - - return (i < MAX_CLOCK_ENABLE_WAIT) ? 1 : 0; -}; + r = ((__force u32)clk->enable_reg ^ (CM_FCLKEN ^ CM_ICLKEN)); + *other_reg = (__force void __iomem *)r; + *other_bit = clk->enable_bit; +} -/* - * Note: We don't need special code here for INVERT_ENABLE - * for the time being since INVERT_ENABLE only applies to clocks enabled by - * CM_CLKEN_PLL +/** + * omap2_clk_dflt_find_idlest - find CM_IDLEST reg va, bit shift for @clk + * @clk: struct clk * to find IDLEST info for + * @idlest_reg: void __iomem ** to return the CM_IDLEST va in + * @idlest_bit: u8 ** to return the CM_IDLEST bit shift in + * + * Return the CM_IDLEST register address and bit shift corresponding + * to the module that "owns" this clock. This default code assumes + * that the CM_IDLEST bit shift is the CM_*CLKEN bit shift, and that + * the IDLEST register address ID corresponds to the CM_*CLKEN + * register address ID (e.g., that CM_FCLKEN2 corresponds to + * CM_IDLEST2). This is not true for all modules. No return value. */ -static void omap2_clk_wait_ready(struct clk *clk) +void omap2_clk_dflt_find_idlest(struct clk *clk, void __iomem **idlest_reg, + u8 *idlest_bit) { - void __iomem *reg, *other_reg, *st_reg; - u32 bit; + u32 r; - /* - * REVISIT: This code is pretty ugly. It would be nice to generalize - * it and pull it into struct clk itself somehow. - */ - reg = clk->enable_reg; + r = (((__force u32)clk->enable_reg & ~0xf0) | 0x20); + *idlest_reg = (__force void __iomem *)r; + *idlest_bit = clk->enable_bit; +} - /* - * Convert CM_ICLKEN* <-> CM_FCLKEN*. This conversion assumes - * it's just a matter of XORing the bits. - */ - other_reg = (void __iomem *)((u32)reg ^ (CM_FCLKEN ^ CM_ICLKEN)); +/** + * omap2_module_wait_ready - wait for an OMAP module to leave IDLE + * @clk: struct clk * belonging to the module + * + * If the necessary clocks for the OMAP hardware IP block that + * corresponds to clock @clk are enabled, then wait for the module to + * indicate readiness (i.e., to leave IDLE). This code does not + * belong in the clock code and will be moved in the medium term to + * module-dependent code. No return value. + */ +static void omap2_module_wait_ready(struct clk *clk) +{ + void __iomem *companion_reg, *idlest_reg; + u8 other_bit, idlest_bit; + + /* Not all modules have multiple clocks that their IDLEST depends on */ + if (clk->ops->find_companion) { + clk->ops->find_companion(clk, &companion_reg, &other_bit); + if (!(__raw_readl(companion_reg) & (1 << other_bit))) + return; + } - /* Check if both functional and interface clocks - * are running. */ - bit = 1 << clk->enable_bit; - if (!(__raw_readl(other_reg) & bit)) - return; - st_reg = (void __iomem *)(((u32)other_reg & ~0xf0) | 0x20); /* CM_IDLEST* */ + clk->ops->find_idlest(clk, &idlest_reg, &idlest_bit); - omap2_wait_clock_ready(st_reg, bit, clk->name); + omap2_cm_wait_idlest(idlest_reg, (1 << idlest_bit), clk->name); } -static int omap2_dflt_clk_enable(struct clk *clk) +int omap2_dflt_clk_enable(struct clk *clk) { u32 v; if (unlikely(clk->enable_reg == NULL)) { - printk(KERN_ERR "clock.c: Enable for %s without enable code\n", + pr_err("clock.c: Enable for %s without enable code\n", clk->name); return 0; /* REVISIT: -EINVAL */ } @@ -363,26 +376,13 @@ static int omap2_dflt_clk_enable(struct clk *clk) __raw_writel(v, clk->enable_reg); v = __raw_readl(clk->enable_reg); /* OCP barrier */ - return 0; -} + if (clk->ops->find_idlest) + omap2_module_wait_ready(clk); -static int omap2_dflt_clk_enable_wait(struct clk *clk) -{ - int ret; - - if (!clk->enable_reg) { - printk(KERN_ERR "clock.c: Enable for %s without enable code\n", - clk->name); - return 0; /* REVISIT: -EINVAL */ - } - - ret = omap2_dflt_clk_enable(clk); - if (ret == 0) - omap2_clk_wait_ready(clk); - return ret; + return 0; } -static void omap2_dflt_clk_disable(struct clk *clk) +void omap2_dflt_clk_disable(struct clk *clk) { u32 v; @@ -406,8 +406,10 @@ static void omap2_dflt_clk_disable(struct clk *clk) } const struct clkops clkops_omap2_dflt_wait = { - .enable = omap2_dflt_clk_enable_wait, + .enable = omap2_dflt_clk_enable, .disable = omap2_dflt_clk_disable, + .find_companion = omap2_clk_dflt_find_companion, + .find_idlest = omap2_clk_dflt_find_idlest, }; const struct clkops clkops_omap2_dflt = { diff --git a/arch/arm/mach-omap2/clock.h b/arch/arm/mach-omap2/clock.h index 2679ddf..9ae7540 100644 --- a/arch/arm/mach-omap2/clock.h +++ b/arch/arm/mach-omap2/clock.h @@ -65,6 +65,12 @@ int omap2_clksel_set_rate(struct clk *clk, unsigned long rate); u32 omap2_get_dpll_rate(struct clk *clk); int omap2_wait_clock_ready(void __iomem *reg, u32 cval, const char *name); void omap2_clk_prepare_for_reboot(void); +int omap2_dflt_clk_enable(struct clk *clk); +void omap2_dflt_clk_disable(struct clk *clk); +void omap2_clk_dflt_find_companion(struct clk *clk, void __iomem **other_reg, + u8 *other_bit); +void omap2_clk_dflt_find_idlest(struct clk *clk, void __iomem **idlest_reg, + u8 *idlest_bit); extern const struct clkops clkops_omap2_dflt_wait; extern const struct clkops clkops_omap2_dflt; diff --git a/arch/arm/mach-omap2/prcm.c b/arch/arm/mach-omap2/prcm.c index f945156..ced555a 100644 --- a/arch/arm/mach-omap2/prcm.c +++ b/arch/arm/mach-omap2/prcm.c @@ -17,6 +17,7 @@ #include #include #include +#include #include #include @@ -28,6 +29,8 @@ static void __iomem *prm_base; static void __iomem *cm_base; +#define MAX_MODULE_ENABLE_WAIT 100000 + u32 omap_prcm_get_reset_sources(void) { /* XXX This presumably needs modification for 34XX */ @@ -120,6 +123,46 @@ u32 cm_rmw_mod_reg_bits(u32 mask, u32 bits, s16 module, s16 idx) } EXPORT_SYMBOL(cm_rmw_mod_reg_bits); +/** + * omap2_cm_wait_idlest - wait for IDLEST bit to indicate module readiness + * @reg: physical address of module IDLEST register + * @mask: value to mask against to determine if the module is active + * @name: name of the clock (for printk) + * + * Returns 1 if the module indicated readiness in time, or 0 if it + * failed to enable in roughly MAX_MODULE_ENABLE_WAIT microseconds. + */ +int omap2_cm_wait_idlest(void __iomem *reg, u32 mask, const char *name) +{ + int i = 0; + int ena = 0; + + /* + * 24xx uses 0 to indicate not ready, and 1 to indicate ready. + * 34xx reverses this, just to keep us on our toes + */ + if (cpu_is_omap24xx()) + ena = mask; + else if (cpu_is_omap34xx()) + ena = 0; + else + BUG(); + + /* Wait for lock */ + while (((__raw_readl(reg) & mask) != ena) && + (i++ < MAX_MODULE_ENABLE_WAIT)) + udelay(1); + + if (i < MAX_MODULE_ENABLE_WAIT) + pr_debug("cm: Module associated with clock %s ready after %d " + "loops\n", name, i); + else + pr_err("cm: Module associated with clock %s didn't enable in " + "%d tries\n", name, MAX_MODULE_ENABLE_WAIT); + + return (i < MAX_MODULE_ENABLE_WAIT) ? 1 : 0; +}; + void __init omap2_set_globals_prcm(struct omap_globals *omap2_globals) { prm_base = omap2_globals->prm; diff --git a/arch/arm/plat-omap/include/mach/clock.h b/arch/arm/plat-omap/include/mach/clock.h index f9f65e1..4b8b0d6 100644 --- a/arch/arm/plat-omap/include/mach/clock.h +++ b/arch/arm/plat-omap/include/mach/clock.h @@ -20,6 +20,8 @@ struct clockdomain; struct clkops { int (*enable)(struct clk *); void (*disable)(struct clk *); + void (*find_idlest)(struct clk *, void __iomem **, u8 *); + void (*find_companion)(struct clk *, void __iomem **, u8 *); }; #if defined(CONFIG_ARCH_OMAP2) || defined(CONFIG_ARCH_OMAP3) || \ diff --git a/arch/arm/plat-omap/include/mach/prcm.h b/arch/arm/plat-omap/include/mach/prcm.h index 24ac3c7..cda2a70 100644 --- a/arch/arm/plat-omap/include/mach/prcm.h +++ b/arch/arm/plat-omap/include/mach/prcm.h @@ -25,6 +25,7 @@ u32 omap_prcm_get_reset_sources(void); void omap_prcm_arch_reset(char mode); +int omap2_cm_wait_idlest(void __iomem *reg, u32 mask, const char *name); #endif -- cgit v0.10.2 From 3dc2197579089c5b74c7fba666c8ccf1a449afb4 Mon Sep 17 00:00:00 2001 From: Paul Walmsley Date: Fri, 24 Jul 2009 19:44:04 -0600 Subject: OMAP2 clock: 2430 I2CHS uses non-standard CM_IDLEST register OMAP2430 I2CHS CM_IDLEST bits are in CM_IDLEST1_CORE, but the CM_*CLKEN bits are in CM_{I,F}CLKEN2_CORE [1]. Fix by implementing a custom clkops .find_idlest function to return the correct slave IDLEST register. ... 1. OMAP2430 Multimedia Device Package-on-Package (POP) Silicon Revision 2.1 (Rev. V) Technical Reference Manual, tables 4-99 and 4-105. Signed-off-by: Paul Walmsley diff --git a/arch/arm/mach-omap2/clock24xx.c b/arch/arm/mach-omap2/clock24xx.c index 44de027..bc5d3ac 100644 --- a/arch/arm/mach-omap2/clock24xx.c +++ b/arch/arm/mach-omap2/clock24xx.c @@ -30,6 +30,7 @@ #include #include +#include #include #include @@ -43,6 +44,18 @@ static const struct clkops clkops_oscck; static const struct clkops clkops_fixed; +static void omap2430_clk_i2chs_find_idlest(struct clk *clk, + void __iomem **idlest_reg, + u8 *idlest_bit); + +/* 2430 I2CHS has non-standard IDLEST register */ +static const struct clkops clkops_omap2430_i2chs_wait = { + .enable = omap2_dflt_clk_enable, + .disable = omap2_dflt_clk_disable, + .find_idlest = omap2430_clk_i2chs_find_idlest, + .find_companion = omap2_clk_dflt_find_companion, +}; + #include "clock24xx.h" struct omap_clk { @@ -240,6 +253,26 @@ static void __iomem *prcm_clksrc_ctrl; *-------------------------------------------------------------------------*/ /** + * omap2430_clk_i2chs_find_idlest - return CM_IDLEST info for 2430 I2CHS + * @clk: struct clk * being enabled + * @idlest_reg: void __iomem ** to store CM_IDLEST reg address into + * @idlest_bit: pointer to a u8 to store the CM_IDLEST bit shift into + * + * OMAP2430 I2CHS CM_IDLEST bits are in CM_IDLEST1_CORE, but the + * CM_*CLKEN bits are in CM_{I,F}CLKEN2_CORE. This custom function + * passes back the correct CM_IDLEST register address for I2CHS + * modules. No return value. + */ +static void omap2430_clk_i2chs_find_idlest(struct clk *clk, + void __iomem **idlest_reg, + u8 *idlest_bit) +{ + *idlest_reg = OMAP_CM_REGADDR(CORE_MOD, CM_IDLEST); + *idlest_bit = clk->enable_bit; +} + + +/** * omap2xxx_clk_get_core_rate - return the CORE_CLK rate * @clk: pointer to the combined dpll_ck + core_ck (currently "dpll_ck") * @@ -325,8 +358,8 @@ static int omap2_clk_fixed_enable(struct clk *clk) else if (clk == &apll54_ck) cval = OMAP24XX_ST_54M_APLL; - omap2_wait_clock_ready(OMAP_CM_REGADDR(PLL_MOD, CM_IDLEST), cval, - clk->name); + omap2_cm_wait_idlest(OMAP_CM_REGADDR(PLL_MOD, CM_IDLEST), cval, + clk->name); /* * REVISIT: Should we return an error code if omap2_wait_clock_ready() diff --git a/arch/arm/mach-omap2/clock24xx.h b/arch/arm/mach-omap2/clock24xx.h index 458f00c..d19cf7a 100644 --- a/arch/arm/mach-omap2/clock24xx.h +++ b/arch/arm/mach-omap2/clock24xx.h @@ -2337,7 +2337,7 @@ static struct clk i2c2_fck = { static struct clk i2chs2_fck = { .name = "i2c_fck", - .ops = &clkops_omap2_dflt_wait, + .ops = &clkops_omap2430_i2chs_wait, .id = 2, .parent = &func_96m_ck, .clkdm_name = "core_l4_clkdm", @@ -2370,7 +2370,7 @@ static struct clk i2c1_fck = { static struct clk i2chs1_fck = { .name = "i2c_fck", - .ops = &clkops_omap2_dflt_wait, + .ops = &clkops_omap2430_i2chs_wait, .id = 1, .parent = &func_96m_ck, .clkdm_name = "core_l4_clkdm", -- cgit v0.10.2 From 3c82e229f09a6acc8d24dc27c5e0e60b1d7161c2 Mon Sep 17 00:00:00 2001 From: Paul Walmsley Date: Fri, 24 Jul 2009 19:44:06 -0600 Subject: OMAP3 clock: correct module IDLEST bits: SSI; DSS; USBHOST; HSOTGUSB Fix two bugs in the OMAP3 clock tree pertaining to the SSI, DSS, USBHOST, and HSOTGUSB devices. These devices are both interconnect initiators and targets. Without this patch, clk_enable()s on clocks for these modules can be very high latency (potentially up to ~200 milliseconds) and message such as the following are generated: Clock usbhost_48m_fck didn't enable in 100000 tries Two bugs are fixed by this patch. First, OMAP hardware only supports target CM_IDLEST register bits on ES2+ chips and beyond. ES1 chips should not wait for these clocks to enable. So, split the appropriate clocks into ES1 and ES2+ variants, so that kernels running on ES1 devices won't try to wait. Second, the current heuristic in omap2_clk_dflt_find_idlest() will fail for these clocks. It assumes that the CM_IDLEST bit to wait upon is the same as the CM_*CLKEN bit, which is false[1]. Fix by implementing custom clkops .find_idlest function pointers for the appropriate clocks that return the correct slave IDLEST bit shift. This was originally fixed in the linux-omap kernel during 2.6.29 in a slightly different manner[2][3]. In the medium-term future, all of the module IDLEST code will eventually be moved to the omap_hwmod code. Problem reported by Jarkko Nikula : http://marc.info/?l=linux-omap&m=124306184903679&w=2 ... 1. See for example 34xx TRM Revision P Table 4-213 and 4-217 (for the DSS case). 2. http://www.spinics.net/lists/linux-omap/msg05512.html et seq. 3. http://lkml.indiana.edu/hypermail/linux/kernel/0901.3/01498.html Signed-off-by: Paul Walmsley Cc: Jarkko Nikula diff --git a/arch/arm/mach-omap2/clock34xx.c b/arch/arm/mach-omap2/clock34xx.c index 1c6480d..cd7819c 100644 --- a/arch/arm/mach-omap2/clock34xx.c +++ b/arch/arm/mach-omap2/clock34xx.c @@ -2,7 +2,7 @@ * OMAP3-specific clock framework functions * * Copyright (C) 2007-2008 Texas Instruments, Inc. - * Copyright (C) 2007-2008 Nokia Corporation + * Copyright (C) 2007-2009 Nokia Corporation * * Written by Paul Walmsley * Testing and integration fixes by Jouni Högander @@ -41,6 +41,37 @@ static const struct clkops clkops_noncore_dpll_ops; +static void omap3430es2_clk_ssi_find_idlest(struct clk *clk, + void __iomem **idlest_reg, + u8 *idlest_bit); +static void omap3430es2_clk_hsotgusb_find_idlest(struct clk *clk, + void __iomem **idlest_reg, + u8 *idlest_bit); +static void omap3430es2_clk_dss_usbhost_find_idlest(struct clk *clk, + void __iomem **idlest_reg, + u8 *idlest_bit); + +static const struct clkops clkops_omap3430es2_ssi_wait = { + .enable = omap2_dflt_clk_enable, + .disable = omap2_dflt_clk_disable, + .find_idlest = omap3430es2_clk_ssi_find_idlest, + .find_companion = omap2_clk_dflt_find_companion, +}; + +static const struct clkops clkops_omap3430es2_hsotgusb_wait = { + .enable = omap2_dflt_clk_enable, + .disable = omap2_dflt_clk_disable, + .find_idlest = omap3430es2_clk_hsotgusb_find_idlest, + .find_companion = omap2_clk_dflt_find_companion, +}; + +static const struct clkops clkops_omap3430es2_dss_usbhost_wait = { + .enable = omap2_dflt_clk_enable, + .disable = omap2_dflt_clk_disable, + .find_idlest = omap3430es2_clk_dss_usbhost_find_idlest, + .find_companion = omap2_clk_dflt_find_companion, +}; + #include "clock34xx.h" struct omap_clk { @@ -157,10 +188,13 @@ static struct omap_clk omap34xx_clks[] = { CLK(NULL, "fshostusb_fck", &fshostusb_fck, CK_3430ES1), CLK(NULL, "core_12m_fck", &core_12m_fck, CK_343X), CLK("omap_hdq.0", "fck", &hdq_fck, CK_343X), - CLK(NULL, "ssi_ssr_fck", &ssi_ssr_fck, CK_343X), - CLK(NULL, "ssi_sst_fck", &ssi_sst_fck, CK_343X), + CLK(NULL, "ssi_ssr_fck", &ssi_ssr_fck_3430es1, CK_3430ES1), + CLK(NULL, "ssi_ssr_fck", &ssi_ssr_fck_3430es2, CK_3430ES2), + CLK(NULL, "ssi_sst_fck", &ssi_sst_fck_3430es1, CK_3430ES1), + CLK(NULL, "ssi_sst_fck", &ssi_sst_fck_3430es2, CK_3430ES2), CLK(NULL, "core_l3_ick", &core_l3_ick, CK_343X), - CLK("musb_hdrc", "ick", &hsotgusb_ick, CK_343X), + CLK("musb_hdrc", "ick", &hsotgusb_ick_3430es1, CK_3430ES1), + CLK("musb_hdrc", "ick", &hsotgusb_ick_3430es2, CK_3430ES2), CLK(NULL, "sdrc_ick", &sdrc_ick, CK_343X), CLK(NULL, "gpmc_fck", &gpmc_fck, CK_343X), CLK(NULL, "security_l3_ick", &security_l3_ick, CK_343X), @@ -193,18 +227,21 @@ static struct omap_clk omap34xx_clks[] = { CLK(NULL, "mailboxes_ick", &mailboxes_ick, CK_343X), CLK(NULL, "omapctrl_ick", &omapctrl_ick, CK_343X), CLK(NULL, "ssi_l4_ick", &ssi_l4_ick, CK_343X), - CLK(NULL, "ssi_ick", &ssi_ick, CK_343X), + CLK(NULL, "ssi_ick", &ssi_ick_3430es1, CK_3430ES1), + CLK(NULL, "ssi_ick", &ssi_ick_3430es2, CK_3430ES2), CLK(NULL, "usb_l4_ick", &usb_l4_ick, CK_3430ES1), CLK(NULL, "security_l4_ick2", &security_l4_ick2, CK_343X), CLK(NULL, "aes1_ick", &aes1_ick, CK_343X), CLK("omap_rng", "ick", &rng_ick, CK_343X), CLK(NULL, "sha11_ick", &sha11_ick, CK_343X), CLK(NULL, "des1_ick", &des1_ick, CK_343X), - CLK("omapfb", "dss1_fck", &dss1_alwon_fck, CK_343X), + CLK("omapfb", "dss1_fck", &dss1_alwon_fck_3430es1, CK_3430ES1), + CLK("omapfb", "dss1_fck", &dss1_alwon_fck_3430es2, CK_3430ES2), CLK("omapfb", "tv_fck", &dss_tv_fck, CK_343X), CLK("omapfb", "video_fck", &dss_96m_fck, CK_343X), CLK("omapfb", "dss2_fck", &dss2_alwon_fck, CK_343X), - CLK("omapfb", "ick", &dss_ick, CK_343X), + CLK("omapfb", "ick", &dss_ick_3430es1, CK_3430ES1), + CLK("omapfb", "ick", &dss_ick_3430es2, CK_3430ES2), CLK(NULL, "cam_mclk", &cam_mclk, CK_343X), CLK(NULL, "cam_ick", &cam_ick, CK_343X), CLK(NULL, "csi2_96m_fck", &csi2_96m_fck, CK_343X), @@ -301,6 +338,73 @@ static struct omap_clk omap34xx_clks[] = { #define SDRC_MPURATE_LOOPS 96 /** + * omap3430es2_clk_ssi_find_idlest - return CM_IDLEST info for SSI + * @clk: struct clk * being enabled + * @idlest_reg: void __iomem ** to store CM_IDLEST reg address into + * @idlest_bit: pointer to a u8 to store the CM_IDLEST bit shift into + * + * The OMAP3430ES2 SSI target CM_IDLEST bit is at a different shift + * from the CM_{I,F}CLKEN bit. Pass back the correct info via + * @idlest_reg and @idlest_bit. No return value. + */ +static void omap3430es2_clk_ssi_find_idlest(struct clk *clk, + void __iomem **idlest_reg, + u8 *idlest_bit) +{ + u32 r; + + r = (((__force u32)clk->enable_reg & ~0xf0) | 0x20); + *idlest_reg = (__force void __iomem *)r; + *idlest_bit = OMAP3430ES2_ST_SSI_IDLE_SHIFT; +} + +/** + * omap3430es2_clk_dss_usbhost_find_idlest - CM_IDLEST info for DSS, USBHOST + * @clk: struct clk * being enabled + * @idlest_reg: void __iomem ** to store CM_IDLEST reg address into + * @idlest_bit: pointer to a u8 to store the CM_IDLEST bit shift into + * + * Some OMAP modules on OMAP3 ES2+ chips have both initiator and + * target IDLEST bits. For our purposes, we are concerned with the + * target IDLEST bits, which exist at a different bit position than + * the *CLKEN bit position for these modules (DSS and USBHOST) (The + * default find_idlest code assumes that they are at the same + * position.) No return value. + */ +static void omap3430es2_clk_dss_usbhost_find_idlest(struct clk *clk, + void __iomem **idlest_reg, + u8 *idlest_bit) +{ + u32 r; + + r = (((__force u32)clk->enable_reg & ~0xf0) | 0x20); + *idlest_reg = (__force void __iomem *)r; + /* USBHOST_IDLE has same shift */ + *idlest_bit = OMAP3430ES2_ST_DSS_IDLE_SHIFT; +} + +/** + * omap3430es2_clk_hsotgusb_find_idlest - return CM_IDLEST info for HSOTGUSB + * @clk: struct clk * being enabled + * @idlest_reg: void __iomem ** to store CM_IDLEST reg address into + * @idlest_bit: pointer to a u8 to store the CM_IDLEST bit shift into + * + * The OMAP3430ES2 HSOTGUSB target CM_IDLEST bit is at a different + * shift from the CM_{I,F}CLKEN bit. Pass back the correct info via + * @idlest_reg and @idlest_bit. No return value. + */ +static void omap3430es2_clk_hsotgusb_find_idlest(struct clk *clk, + void __iomem **idlest_reg, + u8 *idlest_bit) +{ + u32 r; + + r = (((__force u32)clk->enable_reg & ~0xf0) | 0x20); + *idlest_reg = (__force void __iomem *)r; + *idlest_bit = OMAP3430ES2_ST_HSOTGUSB_IDLE_SHIFT; +} + +/** * omap3_dpll_recalc - recalculate DPLL rate * @clk: DPLL struct clk * diff --git a/arch/arm/mach-omap2/clock34xx.h b/arch/arm/mach-omap2/clock34xx.h index e433aec..57cc272 100644 --- a/arch/arm/mach-omap2/clock34xx.h +++ b/arch/arm/mach-omap2/clock34xx.h @@ -1568,7 +1568,7 @@ static const struct clksel ssi_ssr_clksel[] = { { .parent = NULL } }; -static struct clk ssi_ssr_fck = { +static struct clk ssi_ssr_fck_3430es1 = { .name = "ssi_ssr_fck", .ops = &clkops_omap2_dflt, .init = &omap2_init_clksel_parent, @@ -1581,10 +1581,31 @@ static struct clk ssi_ssr_fck = { .recalc = &omap2_clksel_recalc, }; -static struct clk ssi_sst_fck = { +static struct clk ssi_ssr_fck_3430es2 = { + .name = "ssi_ssr_fck", + .ops = &clkops_omap3430es2_ssi_wait, + .init = &omap2_init_clksel_parent, + .enable_reg = OMAP_CM_REGADDR(CORE_MOD, CM_FCLKEN1), + .enable_bit = OMAP3430_EN_SSI_SHIFT, + .clksel_reg = OMAP_CM_REGADDR(CORE_MOD, CM_CLKSEL), + .clksel_mask = OMAP3430_CLKSEL_SSI_MASK, + .clksel = ssi_ssr_clksel, + .clkdm_name = "core_l4_clkdm", + .recalc = &omap2_clksel_recalc, +}; + +static struct clk ssi_sst_fck_3430es1 = { .name = "ssi_sst_fck", .ops = &clkops_null, - .parent = &ssi_ssr_fck, + .parent = &ssi_ssr_fck_3430es1, + .fixed_div = 2, + .recalc = &omap2_fixed_divisor_recalc, +}; + +static struct clk ssi_sst_fck_3430es2 = { + .name = "ssi_sst_fck", + .ops = &clkops_null, + .parent = &ssi_ssr_fck_3430es2, .fixed_div = 2, .recalc = &omap2_fixed_divisor_recalc, }; @@ -1606,9 +1627,19 @@ static struct clk core_l3_ick = { .recalc = &followparent_recalc, }; -static struct clk hsotgusb_ick = { +static struct clk hsotgusb_ick_3430es1 = { .name = "hsotgusb_ick", - .ops = &clkops_omap2_dflt_wait, + .ops = &clkops_omap2_dflt, + .parent = &core_l3_ick, + .enable_reg = OMAP_CM_REGADDR(CORE_MOD, CM_ICLKEN1), + .enable_bit = OMAP3430_EN_HSOTGUSB_SHIFT, + .clkdm_name = "core_l3_clkdm", + .recalc = &followparent_recalc, +}; + +static struct clk hsotgusb_ick_3430es2 = { + .name = "hsotgusb_ick", + .ops = &clkops_omap3430es2_hsotgusb_wait, .parent = &core_l3_ick, .enable_reg = OMAP_CM_REGADDR(CORE_MOD, CM_ICLKEN1), .enable_bit = OMAP3430_EN_HSOTGUSB_SHIFT, @@ -1947,7 +1978,7 @@ static struct clk ssi_l4_ick = { .recalc = &followparent_recalc, }; -static struct clk ssi_ick = { +static struct clk ssi_ick_3430es1 = { .name = "ssi_ick", .ops = &clkops_omap2_dflt, .parent = &ssi_l4_ick, @@ -1957,6 +1988,16 @@ static struct clk ssi_ick = { .recalc = &followparent_recalc, }; +static struct clk ssi_ick_3430es2 = { + .name = "ssi_ick", + .ops = &clkops_omap3430es2_ssi_wait, + .parent = &ssi_l4_ick, + .enable_reg = OMAP_CM_REGADDR(CORE_MOD, CM_ICLKEN1), + .enable_bit = OMAP3430_EN_SSI_SHIFT, + .clkdm_name = "core_l4_clkdm", + .recalc = &followparent_recalc, +}; + /* REVISIT: Technically the TRM claims that this is CORE_CLK based, * but l4_ick makes more sense to me */ @@ -2024,7 +2065,7 @@ static struct clk des1_ick = { }; /* DSS */ -static struct clk dss1_alwon_fck = { +static struct clk dss1_alwon_fck_3430es1 = { .name = "dss1_alwon_fck", .ops = &clkops_omap2_dflt, .parent = &dpll4_m4x2_ck, @@ -2034,6 +2075,16 @@ static struct clk dss1_alwon_fck = { .recalc = &followparent_recalc, }; +static struct clk dss1_alwon_fck_3430es2 = { + .name = "dss1_alwon_fck", + .ops = &clkops_omap3430es2_dss_usbhost_wait, + .parent = &dpll4_m4x2_ck, + .enable_reg = OMAP_CM_REGADDR(OMAP3430_DSS_MOD, CM_FCLKEN), + .enable_bit = OMAP3430_EN_DSS1_SHIFT, + .clkdm_name = "dss_clkdm", + .recalc = &followparent_recalc, +}; + static struct clk dss_tv_fck = { .name = "dss_tv_fck", .ops = &clkops_omap2_dflt, @@ -2067,7 +2118,7 @@ static struct clk dss2_alwon_fck = { .recalc = &followparent_recalc, }; -static struct clk dss_ick = { +static struct clk dss_ick_3430es1 = { /* Handles both L3 and L4 clocks */ .name = "dss_ick", .ops = &clkops_omap2_dflt, @@ -2079,6 +2130,18 @@ static struct clk dss_ick = { .recalc = &followparent_recalc, }; +static struct clk dss_ick_3430es2 = { + /* Handles both L3 and L4 clocks */ + .name = "dss_ick", + .ops = &clkops_omap3430es2_dss_usbhost_wait, + .parent = &l4_ick, + .init = &omap2_init_clk_clkdm, + .enable_reg = OMAP_CM_REGADDR(OMAP3430_DSS_MOD, CM_ICLKEN), + .enable_bit = OMAP3430_CM_ICLKEN_DSS_EN_DSS_SHIFT, + .clkdm_name = "dss_clkdm", + .recalc = &followparent_recalc, +}; + /* CAM */ static struct clk cam_mclk = { @@ -2118,7 +2181,7 @@ static struct clk csi2_96m_fck = { static struct clk usbhost_120m_fck = { .name = "usbhost_120m_fck", - .ops = &clkops_omap2_dflt_wait, + .ops = &clkops_omap2_dflt, .parent = &dpll5_m2_ck, .init = &omap2_init_clk_clkdm, .enable_reg = OMAP_CM_REGADDR(OMAP3430ES2_USBHOST_MOD, CM_FCLKEN), @@ -2129,7 +2192,7 @@ static struct clk usbhost_120m_fck = { static struct clk usbhost_48m_fck = { .name = "usbhost_48m_fck", - .ops = &clkops_omap2_dflt_wait, + .ops = &clkops_omap3430es2_dss_usbhost_wait, .parent = &omap_48m_fck, .init = &omap2_init_clk_clkdm, .enable_reg = OMAP_CM_REGADDR(OMAP3430ES2_USBHOST_MOD, CM_FCLKEN), @@ -2141,7 +2204,7 @@ static struct clk usbhost_48m_fck = { static struct clk usbhost_ick = { /* Handles both L3 and L4 clocks */ .name = "usbhost_ick", - .ops = &clkops_omap2_dflt_wait, + .ops = &clkops_omap3430es2_dss_usbhost_wait, .parent = &l4_ick, .init = &omap2_init_clk_clkdm, .enable_reg = OMAP_CM_REGADDR(OMAP3430ES2_USBHOST_MOD, CM_ICLKEN), -- cgit v0.10.2 From 505d62d073b528859b43bfb463a6ceaf3581469e Mon Sep 17 00:00:00 2001 From: Sebastian Andrzej Siewior Date: Sun, 26 Jul 2009 14:57:54 +0200 Subject: avr32/lib: fix unaligned memcpy() memcpy(p, unaligned, 4..) returns (p + num_of_unaligned_by_copied) instead of p because p is not preserved in the unaligned case. Noticed by Herbert Xu's superior parameter recycling coding technique which let the md4 self-test fail on avr32. Signed-off-by: Sebastian Andrzej Siewior Signed-off-by: Haavard Skinnemoen diff --git a/arch/avr32/lib/memcpy.S b/arch/avr32/lib/memcpy.S index 0abb261..93e74b6 100644 --- a/arch/avr32/lib/memcpy.S +++ b/arch/avr32/lib/memcpy.S @@ -24,8 +24,8 @@ memcpy: brne 1f /* At this point, "from" is word-aligned */ -2: sub r10, 4 - mov r9, r12 +2: mov r9, r12 +5: sub r10, 4 brlt 4f 3: ld.w r8, r11++ @@ -59,4 +59,13 @@ memcpy: st.b r12++, r8 ld.ub r8, r11++ st.b r12++, r8 - rjmp 2b + mov r8, r12 + add pc, pc, r9 + sub r8, 1 + nop + sub r8, 1 + nop + sub r8, 1 + nop + mov r9, r8 + rjmp 5b -- cgit v0.10.2 From 251ab1a37d9ba810593d5fbf2482bc4ba773fab2 Mon Sep 17 00:00:00 2001 From: Sebastian Andrzej Siewior Date: Sun, 26 Jul 2009 14:58:34 +0200 Subject: avr32/lib: fix unaligned memcpy where len < 4 in case of memcpy(p, unaligned, 1..3) we get 1..3 as the return value instead of p Signed-off-by: Sebastian Andrzej Siewior Signed-off-by: Haavard Skinnemoen diff --git a/arch/avr32/lib/memcpy.S b/arch/avr32/lib/memcpy.S index 93e74b6..c2ca49d 100644 --- a/arch/avr32/lib/memcpy.S +++ b/arch/avr32/lib/memcpy.S @@ -49,6 +49,7 @@ memcpy: /* Handle unaligned "from" pointer */ 1: sub r10, 4 + movlt r9, r12 brlt 4b add r10, r9 lsl r9, 2 -- cgit v0.10.2 From 92c548cd35d50df398f442b07021150094578460 Mon Sep 17 00:00:00 2001 From: Ben Nizette Date: Mon, 20 Apr 2009 12:36:53 +1000 Subject: favr32: improve touchscreen response The ezLCD+101 board (to which an favr-32 is fitted) has a long, unshielded, nasty lead between the touch panel and the ads7843 touch controller. In order to get satisfactory response then, we need to employ every noise-reduction trick in the driver's arsenal. After extensive fiddling I've found some good settings: 1) We keep vref on all the time to dramatically reduce settling times (at the cost of a tiny increase in power consumption). 2) Despite 1 the settling time is still non-zero. 500uS is plenty of time for the signals to settle 3) Despite 1 and 2 there's still a little bit of noise around. By setting a pen recheck delay we make the panel feel less touchy and twitchy. Someone with more time and patience myself might be able to tune this numbers further but these settings are now perfectly acceptable for normal use. Tested on ezLCD+101 though should only improve response on other ezLCD+/ favr-32 boards too. Signed-off-by: Ben Nizette Signed-off-by: Haavard Skinnemoen diff --git a/arch/avr32/boards/favr-32/setup.c b/arch/avr32/boards/favr-32/setup.c index 46c9b0a..75f19f4 100644 --- a/arch/avr32/boards/favr-32/setup.c +++ b/arch/avr32/boards/favr-32/setup.c @@ -72,6 +72,10 @@ static struct ads7846_platform_data ads7843_data = { .debounce_max = 20, .debounce_rep = 4, .debounce_tol = 5, + + .keep_vref_on = true, + .settle_delay_usecs = 500, + .penirq_recheck_delay_usecs = 100, }; static struct spi_board_info __initdata spi1_board_info[] = { -- cgit v0.10.2 From 9a926d86b29a25456f1dd8c9df938e151b1c3978 Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Mon, 27 Jul 2009 18:10:28 -0700 Subject: sparc64: Sign extend length arg to truncate syscalls when compat. The first thing sys_truncate() and sys_ftruncate() do is sign extend the unsigned length arg to a signed type. Thanks to Benjamin Herrenschmidt for the tip. Signed-off-by: David S. Miller diff --git a/arch/sparc/kernel/sys32.S b/arch/sparc/kernel/sys32.S index f061c4d..577f8fa 100644 --- a/arch/sparc/kernel/sys32.S +++ b/arch/sparc/kernel/sys32.S @@ -138,6 +138,8 @@ SIGN2(sys32_splice, sys_splice, %o0, %o1) SIGN2(sys32_sync_file_range, compat_sync_file_range, %o0, %o5) SIGN2(sys32_tee, sys_tee, %o0, %o1) SIGN1(sys32_vmsplice, compat_sys_vmsplice, %o0) +SIGN1(sys32_truncate, sys_truncate, %o1) +SIGN1(sys32_ftruncate, sys_ftruncate, %o1) .globl sys32_mmap2 sys32_mmap2: diff --git a/arch/sparc/kernel/systbls_64.S b/arch/sparc/kernel/systbls_64.S index 6b3ee88..2ee7250 100644 --- a/arch/sparc/kernel/systbls_64.S +++ b/arch/sparc/kernel/systbls_64.S @@ -43,8 +43,8 @@ sys_call_table32: /*110*/ .word sys_setresgid, sys_getresgid, sys_setregid, sys_nis_syscall, sys_nis_syscall .word sys32_getgroups, compat_sys_gettimeofday, sys32_getrusage, sys_nis_syscall, sys_getcwd /*120*/ .word compat_sys_readv, compat_sys_writev, compat_sys_settimeofday, sys_fchown16, sys_fchmod - .word sys_nis_syscall, sys_setreuid16, sys_setregid16, sys_rename, sys_truncate -/*130*/ .word sys_ftruncate, sys_flock, compat_sys_lstat64, sys_nis_syscall, sys_nis_syscall + .word sys_nis_syscall, sys_setreuid16, sys_setregid16, sys_rename, sys32_truncate +/*130*/ .word sys32_ftruncate, sys_flock, compat_sys_lstat64, sys_nis_syscall, sys_nis_syscall .word sys_nis_syscall, sys32_mkdir, sys_rmdir, compat_sys_utimes, compat_sys_stat64 /*140*/ .word sys32_sendfile64, sys_nis_syscall, sys32_futex, sys_gettid, compat_sys_getrlimit .word compat_sys_setrlimit, sys_pivot_root, sys32_prctl, sys_pciconfig_read, sys_pciconfig_write -- cgit v0.10.2 From e9956fae7dbce6ac770e7a00436c496ddbbd3215 Mon Sep 17 00:00:00 2001 From: Tao Ma Date: Thu, 30 Jul 2009 16:07:10 +0800 Subject: ocfs2/quota: Release lock for error in ocfs2_quota_write. ocfs2_quota_write needs to release the lock if it fails to read quota block. So use "goto out" instead of "return err". Signed-off-by: Tao Ma Acked-by: Jan Kara Signed-off-by: Joel Becker diff --git a/fs/ocfs2/quota_global.c b/fs/ocfs2/quota_global.c index cc8785c..d604a6a 100644 --- a/fs/ocfs2/quota_global.c +++ b/fs/ocfs2/quota_global.c @@ -238,7 +238,7 @@ ssize_t ocfs2_quota_write(struct super_block *sb, int type, } if (err) { mlog_errno(err); - return err; + goto out; } lock_buffer(bh); if (new) -- cgit v0.10.2 From ff46a474ca2566d79e8d7454442b56d82bce37c1 Mon Sep 17 00:00:00 2001 From: Guennadi Liakhovetski Date: Fri, 31 Jul 2009 15:42:09 +0200 Subject: mx3: Fix double pin allocation in pcm037_eet.c SPI pins are now allocated in pcm037.c, remove them from EET. Signed-off-by: Guennadi Liakhovetski Signed-off-by: Sascha Hauer diff --git a/arch/arm/mach-mx3/pcm037_eet.c b/arch/arm/mach-mx3/pcm037_eet.c index fe52fb1..8d38600 100644 --- a/arch/arm/mach-mx3/pcm037_eet.c +++ b/arch/arm/mach-mx3/pcm037_eet.c @@ -24,15 +24,6 @@ #include "devices.h" static unsigned int pcm037_eet_pins[] = { - /* SPI #1 */ - MX31_PIN_CSPI1_MISO__MISO, - MX31_PIN_CSPI1_MOSI__MOSI, - MX31_PIN_CSPI1_SCLK__SCLK, - MX31_PIN_CSPI1_SPI_RDY__SPI_RDY, - MX31_PIN_CSPI1_SS0__SS0, - MX31_PIN_CSPI1_SS1__SS1, - MX31_PIN_CSPI1_SS2__SS2, - /* Reserve and hardwire GPIO 57 high - S6E63D6 chipselect */ IOMUX_MODE(MX31_PIN_KEY_COL7, IOMUX_CONFIG_GPIO), /* GPIO keys */ -- cgit v0.10.2 From ab57a40827d99e2d8e59066a56b93bf6c844c916 Mon Sep 17 00:00:00 2001 From: Goldwyn Rodrigues Date: Fri, 31 Jul 2009 14:28:02 -0500 Subject: ocfs2: Remove redundant BUG_ON in __dlm_queue_ast() We BUG_ON() the same thing twice. Signed-off-by: Goldwyn Rodrigues Signed-off-by: Joel Becker diff --git a/fs/ocfs2/dlm/dlmast.c b/fs/ocfs2/dlm/dlmast.c index d07ddbe..81eff8e 100644 --- a/fs/ocfs2/dlm/dlmast.c +++ b/fs/ocfs2/dlm/dlmast.c @@ -103,7 +103,6 @@ static void __dlm_queue_ast(struct dlm_ctxt *dlm, struct dlm_lock *lock) lock->ast_pending, lock->ml.type); BUG(); } - BUG_ON(!list_empty(&lock->ast_list)); if (lock->ast_pending) mlog(0, "lock has an ast getting flushed right now\n"); -- cgit v0.10.2 From a923c28fc538a4161b15e9b5d7d48248d73d3e6f Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Sun, 2 Aug 2009 19:17:15 -0700 Subject: sparc: Use page_fault_out_of_memory() for VM_FAULT_OOM. As noted by Nick Piggin. Signed-off-by: David S. Miller diff --git a/arch/sparc/mm/fault_32.c b/arch/sparc/mm/fault_32.c index a5e30c6..b99f81c 100644 --- a/arch/sparc/mm/fault_32.c +++ b/arch/sparc/mm/fault_32.c @@ -319,9 +319,10 @@ no_context: */ out_of_memory: up_read(&mm->mmap_sem); - printk("VM: killing process %s\n", tsk->comm); - if (from_user) - do_group_exit(SIGKILL); + if (from_user) { + pagefault_out_of_memory(); + return; + } goto no_context; do_sigbus: diff --git a/arch/sparc/mm/fault_64.c b/arch/sparc/mm/fault_64.c index e5620b2..43b0da9 100644 --- a/arch/sparc/mm/fault_64.c +++ b/arch/sparc/mm/fault_64.c @@ -447,9 +447,10 @@ handle_kernel_fault: out_of_memory: insn = get_fault_insn(regs, insn); up_read(&mm->mmap_sem); - printk("VM: killing process %s\n", current->comm); - if (!(regs->tstate & TSTATE_PRIV)) - do_group_exit(SIGKILL); + if (!(regs->tstate & TSTATE_PRIV)) { + pagefault_out_of_memory(); + return; + } goto handle_kernel_fault; intr_or_no_mm: -- cgit v0.10.2 From b37c45b8c27c049dc44673e40fd63820fd9a9d91 Mon Sep 17 00:00:00 2001 From: Roger Quadros Date: Wed, 5 Aug 2009 16:53:24 +0300 Subject: OMAP: GPIO: Fix incorrect gpio_get logic for output GPIOs gpio_get() should return DATAIN register value when the GPIO is configured as input whereas it should return DATAOUT register value when the GPIO is configured as output. Now /sys/kernel/debug/gpio shows proper values for output GPIOs Signed-off-by: Roger Quadros Signed-off-by: Tony Lindgren diff --git a/arch/arm/plat-omap/gpio.c b/arch/arm/plat-omap/gpio.c index 26b387c..9c16ca8 100644 --- a/arch/arm/plat-omap/gpio.c +++ b/arch/arm/plat-omap/gpio.c @@ -476,14 +476,12 @@ static void _set_gpio_dataout(struct gpio_bank *bank, int gpio, int enable) __raw_writel(l, reg); } -static int __omap_get_gpio_datain(int gpio) +static int _get_gpio_datain(struct gpio_bank *bank, int gpio) { - struct gpio_bank *bank; void __iomem *reg; if (check_gpio(gpio) < 0) return -EINVAL; - bank = get_gpio_bank(gpio); reg = bank->base; switch (bank->method) { #ifdef CONFIG_ARCH_OMAP1 @@ -524,6 +522,53 @@ static int __omap_get_gpio_datain(int gpio) & (1 << get_gpio_index(gpio))) != 0; } +static int _get_gpio_dataout(struct gpio_bank *bank, int gpio) +{ + void __iomem *reg; + + if (check_gpio(gpio) < 0) + return -EINVAL; + reg = bank->base; + + switch (bank->method) { +#ifdef CONFIG_ARCH_OMAP1 + case METHOD_MPUIO: + reg += OMAP_MPUIO_OUTPUT; + break; +#endif +#ifdef CONFIG_ARCH_OMAP15XX + case METHOD_GPIO_1510: + reg += OMAP1510_GPIO_DATA_OUTPUT; + break; +#endif +#ifdef CONFIG_ARCH_OMAP16XX + case METHOD_GPIO_1610: + reg += OMAP1610_GPIO_DATAOUT; + break; +#endif +#ifdef CONFIG_ARCH_OMAP730 + case METHOD_GPIO_730: + reg += OMAP730_GPIO_DATA_OUTPUT; + break; +#endif +#ifdef CONFIG_ARCH_OMAP850 + case METHOD_GPIO_850: + reg += OMAP850_GPIO_DATA_OUTPUT; + break; +#endif +#if defined(CONFIG_ARCH_OMAP24XX) || defined(CONFIG_ARCH_OMAP34XX) || \ + defined(CONFIG_ARCH_OMAP4) + case METHOD_GPIO_24XX: + reg += OMAP24XX_GPIO_DATAOUT; + break; +#endif + default: + return -EINVAL; + } + + return (__raw_readl(reg) & (1 << get_gpio_index(gpio))) != 0; +} + #define MOD_REG_BIT(reg, bit_mask, set) \ do { \ int l = __raw_readl(base + reg); \ @@ -1350,9 +1395,49 @@ static int gpio_input(struct gpio_chip *chip, unsigned offset) return 0; } +static int gpio_is_input(struct gpio_bank *bank, int mask) +{ + void __iomem *reg = bank->base; + + switch (bank->method) { + case METHOD_MPUIO: + reg += OMAP_MPUIO_IO_CNTL; + break; + case METHOD_GPIO_1510: + reg += OMAP1510_GPIO_DIR_CONTROL; + break; + case METHOD_GPIO_1610: + reg += OMAP1610_GPIO_DIRECTION; + break; + case METHOD_GPIO_730: + reg += OMAP730_GPIO_DIR_CONTROL; + break; + case METHOD_GPIO_850: + reg += OMAP850_GPIO_DIR_CONTROL; + break; + case METHOD_GPIO_24XX: + reg += OMAP24XX_GPIO_OE; + break; + } + return __raw_readl(reg) & mask; +} + static int gpio_get(struct gpio_chip *chip, unsigned offset) { - return __omap_get_gpio_datain(chip->base + offset); + struct gpio_bank *bank; + void __iomem *reg; + int gpio; + u32 mask; + + gpio = chip->base + offset; + bank = get_gpio_bank(gpio); + reg = bank->base; + mask = 1 << get_gpio_index(gpio); + + if (gpio_is_input(bank, mask)) + return _get_gpio_datain(bank, gpio); + else + return _get_gpio_dataout(bank, gpio); } static int gpio_output(struct gpio_chip *chip, unsigned offset, int value) @@ -1886,34 +1971,6 @@ arch_initcall(omap_gpio_sysinit); #include #include -static int gpio_is_input(struct gpio_bank *bank, int mask) -{ - void __iomem *reg = bank->base; - - switch (bank->method) { - case METHOD_MPUIO: - reg += OMAP_MPUIO_IO_CNTL; - break; - case METHOD_GPIO_1510: - reg += OMAP1510_GPIO_DIR_CONTROL; - break; - case METHOD_GPIO_1610: - reg += OMAP1610_GPIO_DIRECTION; - break; - case METHOD_GPIO_730: - reg += OMAP730_GPIO_DIR_CONTROL; - break; - case METHOD_GPIO_850: - reg += OMAP850_GPIO_DIR_CONTROL; - break; - case METHOD_GPIO_24XX: - reg += OMAP24XX_GPIO_OE; - break; - } - return __raw_readl(reg) & mask; -} - - static int dbg_gpio_show(struct seq_file *s, void *unused) { unsigned i, j, gpio; -- cgit v0.10.2 From 7cc515f74d2871daff106a17714bfd16bcb045ca Mon Sep 17 00:00:00 2001 From: Kevin Hilman Date: Wed, 10 Jun 2009 09:02:25 -0700 Subject: OMAP2/3: PM: make PM __init calls static Signed-off-by: Kevin Hilman diff --git a/arch/arm/mach-omap2/pm.h b/arch/arm/mach-omap2/pm.h index f7b3baf..21201cd 100644 --- a/arch/arm/mach-omap2/pm.h +++ b/arch/arm/mach-omap2/pm.h @@ -11,9 +11,6 @@ #ifndef __ARCH_ARM_MACH_OMAP2_PM_H #define __ARCH_ARM_MACH_OMAP2_PM_H -extern int omap2_pm_init(void); -extern int omap3_pm_init(void); - #ifdef CONFIG_PM_DEBUG extern void omap2_pm_dump(int mode, int resume, unsigned int us); extern int omap2_pm_debug; diff --git a/arch/arm/mach-omap2/pm24xx.c b/arch/arm/mach-omap2/pm24xx.c index db10255..528dbdc 100644 --- a/arch/arm/mach-omap2/pm24xx.c +++ b/arch/arm/mach-omap2/pm24xx.c @@ -470,7 +470,7 @@ static void __init prcm_setup_regs(void) WKUP_MOD, PM_WKEN); } -int __init omap2_pm_init(void) +static int __init omap2_pm_init(void) { u32 l; diff --git a/arch/arm/mach-omap2/pm34xx.c b/arch/arm/mach-omap2/pm34xx.c index 841d4c5..765cdc0 100644 --- a/arch/arm/mach-omap2/pm34xx.c +++ b/arch/arm/mach-omap2/pm34xx.c @@ -652,7 +652,7 @@ static int __init clkdms_setup(struct clockdomain *clkdm) return 0; } -int __init omap3_pm_init(void) +static int __init omap3_pm_init(void) { struct power_state *pwrst, *tmp; int ret; -- cgit v0.10.2 From 364dd47466ff7a7749bf037df4bf3b7aedbfe6f4 Mon Sep 17 00:00:00 2001 From: Kevin Hilman Date: Tue, 9 Jun 2009 11:45:30 -0700 Subject: OMAP3: PM: CM_REGADDR macros using wrong name Signed-off-by: Kevin Hilman diff --git a/arch/arm/mach-omap2/cm.h b/arch/arm/mach-omap2/cm.h index 1d3c93b..f3c91a1 100644 --- a/arch/arm/mach-omap2/cm.h +++ b/arch/arm/mach-omap2/cm.h @@ -29,9 +29,9 @@ * These registers appear once per CM module. */ -#define OMAP3430_CM_REVISION OMAP_CM_REGADDR(OCP_MOD, 0x0000) -#define OMAP3430_CM_SYSCONFIG OMAP_CM_REGADDR(OCP_MOD, 0x0010) -#define OMAP3430_CM_POLCTRL OMAP_CM_REGADDR(OCP_MOD, 0x009c) +#define OMAP3430_CM_REVISION OMAP34XX_CM_REGADDR(OCP_MOD, 0x0000) +#define OMAP3430_CM_SYSCONFIG OMAP34XX_CM_REGADDR(OCP_MOD, 0x0010) +#define OMAP3430_CM_POLCTRL OMAP34XX_CM_REGADDR(OCP_MOD, 0x009c) #define OMAP3_CM_CLKOUT_CTRL_OFFSET 0x0070 #define OMAP3430_CM_CLKOUT_CTRL OMAP_CM_REGADDR(OMAP3430_CCR_MOD, 0x0070) -- cgit v0.10.2 From 3a6667acf916b3e32be4682196882fc2ed0ec23e Mon Sep 17 00:00:00 2001 From: Kevin Hilman Date: Mon, 27 Apr 2009 07:50:23 -0700 Subject: OMAP3: PM: Ensure PRCM interrupts are cleared at boot Any pending PRCM interrupts can prevent retention. Ensure they are cleared during boot. Signed-off-by: Kevin Hilman diff --git a/arch/arm/mach-omap2/pm34xx.c b/arch/arm/mach-omap2/pm34xx.c index 765cdc0..cc83dfc 100644 --- a/arch/arm/mach-omap2/pm34xx.c +++ b/arch/arm/mach-omap2/pm34xx.c @@ -613,6 +613,9 @@ static void __init prcm_setup_regs(void) /* Clear any pending PRCM interrupts */ prm_write_mod_reg(0, OCP_MOD, OMAP3_PRM_IRQSTATUS_MPU_OFFSET); + /* Clear any pending PRCM interrupts */ + prm_write_mod_reg(0, OCP_MOD, OMAP3_PRM_IRQSTATUS_MPU_OFFSET); + omap3_iva_idle(); omap3_d2d_idle(); } -- cgit v0.10.2 From 3a07ae30a0bfa93ff2b242acf670c6d8e2de35de Mon Sep 17 00:00:00 2001 From: Kevin Hilman Date: Mon, 27 Apr 2009 16:14:54 -0700 Subject: OMAP3: PM: Clear pending PRCM reset flags on init Any pending reset flags can prevent retention. Ensure they are all cleared during boot. Signed-off-by: Kevin Hilman diff --git a/arch/arm/mach-omap2/pm34xx.c b/arch/arm/mach-omap2/pm34xx.c index cc83dfc..1422e93 100644 --- a/arch/arm/mach-omap2/pm34xx.c +++ b/arch/arm/mach-omap2/pm34xx.c @@ -613,6 +613,15 @@ static void __init prcm_setup_regs(void) /* Clear any pending PRCM interrupts */ prm_write_mod_reg(0, OCP_MOD, OMAP3_PRM_IRQSTATUS_MPU_OFFSET); + /* Clear any pending 'reset' flags */ + prm_write_mod_reg(0xffffffff, MPU_MOD, RM_RSTST); + prm_write_mod_reg(0xffffffff, CORE_MOD, RM_RSTST); + prm_write_mod_reg(0xffffffff, OMAP3430_PER_MOD, RM_RSTST); + prm_write_mod_reg(0xffffffff, OMAP3430_EMU_MOD, RM_RSTST); + prm_write_mod_reg(0xffffffff, OMAP3430_NEON_MOD, RM_RSTST); + prm_write_mod_reg(0xffffffff, OMAP3430_DSS_MOD, RM_RSTST); + prm_write_mod_reg(0xffffffff, OMAP3430ES2_USBHOST_MOD, RM_RSTST); + /* Clear any pending PRCM interrupts */ prm_write_mod_reg(0, OCP_MOD, OMAP3_PRM_IRQSTATUS_MPU_OFFSET); -- cgit v0.10.2 From 040fed059c34da5115790609f1a038fc9aec88d1 Mon Sep 17 00:00:00 2001 From: Kevin Hilman Date: Tue, 5 May 2009 16:34:25 -0700 Subject: OMAP3: PM: prevent module wakeups from waking IVA2 By default, prevent functional wakeups from inside a module from waking up the IVA2. Let DSP Bridge code handle this when loaded. Signed-off-by: Kevin Hilman diff --git a/arch/arm/mach-omap2/pm34xx.c b/arch/arm/mach-omap2/pm34xx.c index 1422e93..c813a08 100644 --- a/arch/arm/mach-omap2/pm34xx.c +++ b/arch/arm/mach-omap2/pm34xx.c @@ -613,6 +613,12 @@ static void __init prcm_setup_regs(void) /* Clear any pending PRCM interrupts */ prm_write_mod_reg(0, OCP_MOD, OMAP3_PRM_IRQSTATUS_MPU_OFFSET); + /* Don't attach IVA interrupts */ + prm_write_mod_reg(0, WKUP_MOD, OMAP3430_PM_IVAGRPSEL); + prm_write_mod_reg(0, CORE_MOD, OMAP3430_PM_IVAGRPSEL1); + prm_write_mod_reg(0, CORE_MOD, OMAP3430ES2_PM_IVAGRPSEL3); + prm_write_mod_reg(0, OMAP3430_PER_MOD, OMAP3430_PM_IVAGRPSEL); + /* Clear any pending 'reset' flags */ prm_write_mod_reg(0xffffffff, MPU_MOD, RM_RSTST); prm_write_mod_reg(0xffffffff, CORE_MOD, RM_RSTST); -- cgit v0.10.2 From 10f90ed2d727c0f344d910c02c9726d0481d9b00 Mon Sep 17 00:00:00 2001 From: Kevin Hilman Date: Wed, 24 Jun 2009 11:39:18 -0700 Subject: OMAP3: PM: Do not build suspend code if SUSPEND is not enabled Signed-off-by: Jouni Hogander Signed-off-by: Kevin Hilman diff --git a/arch/arm/mach-omap2/pm34xx.c b/arch/arm/mach-omap2/pm34xx.c index c813a08..528f725 100644 --- a/arch/arm/mach-omap2/pm34xx.c +++ b/arch/arm/mach-omap2/pm34xx.c @@ -39,7 +39,9 @@ struct power_state { struct powerdomain *pwrdm; u32 next_state; +#ifdef CONFIG_SUSPEND u32 saved_state; +#endif struct list_head node; }; @@ -293,6 +295,7 @@ out: local_irq_enable(); } +#ifdef CONFIG_SUSPEND static int omap3_pm_prepare(void) { disable_hlt(); @@ -366,6 +369,7 @@ static struct platform_suspend_ops omap_pm_ops = { .finish = omap3_pm_finish, .valid = suspend_valid_only_mem, }; +#endif /* CONFIG_SUSPEND */ /** @@ -710,7 +714,9 @@ static int __init omap3_pm_init(void) _omap_sram_idle = omap_sram_push(omap34xx_cpu_suspend, omap34xx_cpu_suspend_sz); +#ifdef CONFIG_SUSPEND suspend_set_ops(&omap_pm_ops); +#endif /* CONFIG_SUSPEND */ pm_idle = omap3_pm_idle; -- cgit v0.10.2 From 4789998a30d845d94a7595076d1392ffd5a9d39e Mon Sep 17 00:00:00 2001 From: Kevin Hilman Date: Wed, 24 Jun 2009 10:32:03 -0700 Subject: OMAP4: UART: cleanup special case IRQ handling Streamline the OMAP4 special IRQ assignments by putting inside normal init loop instead of having a separate loop. Signed-off-by: Kevin Hilman diff --git a/arch/arm/mach-omap2/serial.c b/arch/arm/mach-omap2/serial.c index b094c15..c82ec95 100644 --- a/arch/arm/mach-omap2/serial.c +++ b/arch/arm/mach-omap2/serial.c @@ -496,10 +496,6 @@ void __init omap_serial_init(void) if (info == NULL) return; - if (cpu_is_omap44xx()) { - for (i = 0; i < OMAP_MAX_NR_PORTS; i++) - serial_platform_data[i].irq += 32; - } for (i = 0; i < OMAP_MAX_NR_PORTS; i++) { struct plat_serial8250_port *p = serial_platform_data + i; @@ -533,6 +529,9 @@ void __init omap_serial_init(void) uart->p = p; list_add(&uart->node, &uart_list); + if (cpu_is_omap44xx()) + p->irq += 32; + omap_uart_enable_clocks(uart); omap_uart_reset(uart); omap_uart_idle_init(uart); -- cgit v0.10.2 From 2466211e5debd205fc550d871fe0ab9b9a6d02ed Mon Sep 17 00:00:00 2001 From: Tero Kristo Date: Thu, 5 Mar 2009 16:32:23 +0200 Subject: OMAP3: Fixed crash bug with serial + suspend It was possible for an unhandled interrupt to occur if there was incoming serial traffic during wakeup from suspend. This was caused by the code in arch-arm/mach-omap2/serial.c keeping interrupt enabled all the time, but not acking its interrupts. Applies on top of PM branch. Use the PM begin/end hooks to ensure that the "serial idle" interrupts are disabled during the suspend path. Also, since begin/end hooks are now used, use the suspend_state that is passed in the begin hook instead of the enter hook as per the platform_suspend_ops docs. Signed-off-by: Tero Kristo Signed-off-by: Kevin Hilman diff --git a/arch/arm/mach-omap2/pm34xx.c b/arch/arm/mach-omap2/pm34xx.c index 528f725..b07efb2 100644 --- a/arch/arm/mach-omap2/pm34xx.c +++ b/arch/arm/mach-omap2/pm34xx.c @@ -296,6 +296,8 @@ out: } #ifdef CONFIG_SUSPEND +static suspend_state_t suspend_state; + static int omap3_pm_prepare(void) { disable_hlt(); @@ -342,11 +344,11 @@ restore: return ret; } -static int omap3_pm_enter(suspend_state_t state) +static int omap3_pm_enter(suspend_state_t unused) { int ret = 0; - switch (state) { + switch (suspend_state) { case PM_SUSPEND_STANDBY: case PM_SUSPEND_MEM: ret = omap3_pm_suspend(); @@ -363,7 +365,24 @@ static void omap3_pm_finish(void) enable_hlt(); } +/* Hooks to enable / disable UART interrupts during suspend */ +static int omap3_pm_begin(suspend_state_t state) +{ + suspend_state = state; + omap_uart_enable_irqs(0); + return 0; +} + +static void omap3_pm_end(void) +{ + suspend_state = PM_SUSPEND_ON; + omap_uart_enable_irqs(1); + return; +} + static struct platform_suspend_ops omap_pm_ops = { + .begin = omap3_pm_begin, + .end = omap3_pm_end, .prepare = omap3_pm_prepare, .enter = omap3_pm_enter, .finish = omap3_pm_finish, diff --git a/arch/arm/mach-omap2/serial.c b/arch/arm/mach-omap2/serial.c index c82ec95..5352d05 100644 --- a/arch/arm/mach-omap2/serial.c +++ b/arch/arm/mach-omap2/serial.c @@ -435,6 +435,20 @@ static void omap_uart_idle_init(struct omap_uart_state *uart) WARN_ON(ret); } +void omap_uart_enable_irqs(int enable) +{ + int ret; + struct omap_uart_state *uart; + + list_for_each_entry(uart, &uart_list, node) { + if (enable) + ret = request_irq(uart->p->irq, omap_uart_interrupt, + IRQF_SHARED, "serial idle", (void *)uart); + else + free_irq(uart->p->irq, (void *)uart); + } +} + static ssize_t sleep_timeout_show(struct kobject *kobj, struct kobj_attribute *attr, char *buf) diff --git a/arch/arm/plat-omap/include/mach/serial.h b/arch/arm/plat-omap/include/mach/serial.h index 13abd02..def0529 100644 --- a/arch/arm/plat-omap/include/mach/serial.h +++ b/arch/arm/plat-omap/include/mach/serial.h @@ -59,6 +59,7 @@ extern void omap_uart_check_wakeup(void); extern void omap_uart_prepare_suspend(void); extern void omap_uart_prepare_idle(int num); extern void omap_uart_resume_idle(int num); +extern void omap_uart_enable_irqs(int enable); #endif #endif -- cgit v0.10.2 From fd455ea899b5a14a8cdd276e15f3b47696526f92 Mon Sep 17 00:00:00 2001 From: Kevin Hilman Date: Mon, 27 Apr 2009 12:27:36 -0700 Subject: OMAP2/3/4: UART: Allow per-UART disabling wakeup for serial ports This patch causes the OMAP uarts to honor the sysfs power/wakeup file for IOPAD wakeups. Before the OMAP was always woken up from off mode on a rs232 signal change. This patch also creates a different platform device for each serial port so that the wakeup properties can be control per port. By default, IOPAD wakeups are enabled for each UART. To disable, # echo disabled > /sys/devices/platform/serial8250.0/power/wakeup Where serial8250.0 can be replaced by .1, or .2 to control the other ports. Original idea and original patch from Russ Dill Cc: Russ Dill Signed-off-by: Kevin Hilman diff --git a/arch/arm/mach-omap2/serial.c b/arch/arm/mach-omap2/serial.c index 5352d05..6f35a7e 100644 --- a/arch/arm/mach-omap2/serial.c +++ b/arch/arm/mach-omap2/serial.c @@ -54,6 +54,7 @@ struct omap_uart_state { struct plat_serial8250_port *p; struct list_head node; + struct platform_device pdev; #if defined(CONFIG_ARCH_OMAP3) && defined(CONFIG_PM) int context_valid; @@ -68,10 +69,9 @@ struct omap_uart_state { #endif }; -static struct omap_uart_state omap_uart[OMAP_MAX_NR_PORTS]; static LIST_HEAD(uart_list); -static struct plat_serial8250_port serial_platform_data[] = { +static struct plat_serial8250_port serial_platform_data0[] = { { .membase = IO_ADDRESS(OMAP_UART1_BASE), .mapbase = OMAP_UART1_BASE, @@ -81,6 +81,12 @@ static struct plat_serial8250_port serial_platform_data[] = { .regshift = 2, .uartclk = OMAP24XX_BASE_BAUD * 16, }, { + .flags = 0 + } +}; + +static struct plat_serial8250_port serial_platform_data1[] = { + { .membase = IO_ADDRESS(OMAP_UART2_BASE), .mapbase = OMAP_UART2_BASE, .irq = 73, @@ -89,6 +95,12 @@ static struct plat_serial8250_port serial_platform_data[] = { .regshift = 2, .uartclk = OMAP24XX_BASE_BAUD * 16, }, { + .flags = 0 + } +}; + +static struct plat_serial8250_port serial_platform_data2[] = { + { .membase = IO_ADDRESS(OMAP_UART3_BASE), .mapbase = OMAP_UART3_BASE, .irq = 74, @@ -217,6 +229,40 @@ static inline void omap_uart_disable_clocks(struct omap_uart_state *uart) clk_disable(uart->fck); } +static void omap_uart_enable_wakeup(struct omap_uart_state *uart) +{ + /* Set wake-enable bit */ + if (uart->wk_en && uart->wk_mask) { + u32 v = __raw_readl(uart->wk_en); + v |= uart->wk_mask; + __raw_writel(v, uart->wk_en); + } + + /* Ensure IOPAD wake-enables are set */ + if (cpu_is_omap34xx() && uart->padconf) { + u16 v = omap_ctrl_readw(uart->padconf); + v |= OMAP3_PADCONF_WAKEUPENABLE0; + omap_ctrl_writew(v, uart->padconf); + } +} + +static void omap_uart_disable_wakeup(struct omap_uart_state *uart) +{ + /* Clear wake-enable bit */ + if (uart->wk_en && uart->wk_mask) { + u32 v = __raw_readl(uart->wk_en); + v &= ~uart->wk_mask; + __raw_writel(v, uart->wk_en); + } + + /* Ensure IOPAD wake-enables are cleared */ + if (cpu_is_omap34xx() && uart->padconf) { + u16 v = omap_ctrl_readw(uart->padconf); + v &= ~OMAP3_PADCONF_WAKEUPENABLE0; + omap_ctrl_writew(v, uart->padconf); + } +} + static void omap_uart_smart_idle_enable(struct omap_uart_state *uart, int enable) { @@ -246,6 +292,11 @@ static void omap_uart_block_sleep(struct omap_uart_state *uart) static void omap_uart_allow_sleep(struct omap_uart_state *uart) { + if (device_may_wakeup(&uart->pdev.dev)) + omap_uart_enable_wakeup(uart); + else + omap_uart_disable_wakeup(uart); + if (!uart->clocked) return; @@ -292,7 +343,6 @@ void omap_uart_resume_idle(int num) /* Check for normal UART wakeup */ if (__raw_readl(uart->wk_st) & uart->wk_mask) omap_uart_block_sleep(uart); - return; } } @@ -346,16 +396,13 @@ static irqreturn_t omap_uart_interrupt(int irq, void *dev_id) return IRQ_NONE; } -static u32 sleep_timeout = DEFAULT_TIMEOUT; - static void omap_uart_idle_init(struct omap_uart_state *uart) { - u32 v; struct plat_serial8250_port *p = uart->p; int ret; uart->can_sleep = 0; - uart->timeout = sleep_timeout; + uart->timeout = DEFAULT_TIMEOUT; setup_timer(&uart->timer, omap_uart_idle_timer, (unsigned long) uart); mod_timer(&uart->timer, jiffies + uart->timeout); @@ -413,22 +460,6 @@ static void omap_uart_idle_init(struct omap_uart_state *uart) uart->padconf = 0; } - /* Set wake-enable bit */ - if (uart->wk_en && uart->wk_mask) { - v = __raw_readl(uart->wk_en); - v |= uart->wk_mask; - __raw_writel(v, uart->wk_en); - } - - /* Ensure IOPAD wake-enables are set */ - if (cpu_is_omap34xx() && uart->padconf) { - u16 v; - - v = omap_ctrl_readw(uart->padconf); - v |= OMAP3_PADCONF_WAKEUPENABLE0; - omap_ctrl_writew(v, uart->padconf); - } - p->flags |= UPF_SHARE_IRQ; ret = request_irq(p->irq, omap_uart_interrupt, IRQF_SHARED, "serial idle", (void *)uart); @@ -449,54 +480,81 @@ void omap_uart_enable_irqs(int enable) } } -static ssize_t sleep_timeout_show(struct kobject *kobj, - struct kobj_attribute *attr, +static ssize_t sleep_timeout_show(struct device *dev, + struct device_attribute *attr, char *buf) { - return sprintf(buf, "%u\n", sleep_timeout / HZ); + struct platform_device *pdev = container_of(dev, + struct platform_device, dev); + struct omap_uart_state *uart = container_of(pdev, + struct omap_uart_state, pdev); + + return sprintf(buf, "%u\n", uart->timeout / HZ); } -static ssize_t sleep_timeout_store(struct kobject *kobj, - struct kobj_attribute *attr, +static ssize_t sleep_timeout_store(struct device *dev, + struct device_attribute *attr, const char *buf, size_t n) { - struct omap_uart_state *uart; + struct platform_device *pdev = container_of(dev, + struct platform_device, dev); + struct omap_uart_state *uart = container_of(pdev, + struct omap_uart_state, pdev); unsigned int value; if (sscanf(buf, "%u", &value) != 1) { printk(KERN_ERR "sleep_timeout_store: Invalid value\n"); return -EINVAL; } - sleep_timeout = value * HZ; - list_for_each_entry(uart, &uart_list, node) { - uart->timeout = sleep_timeout; - if (uart->timeout) - mod_timer(&uart->timer, jiffies + uart->timeout); - else - /* A zero value means disable timeout feature */ - omap_uart_block_sleep(uart); - } + + uart->timeout = value * HZ; + if (uart->timeout) + mod_timer(&uart->timer, jiffies + uart->timeout); + else + /* A zero value means disable timeout feature */ + omap_uart_block_sleep(uart); + return n; } -static struct kobj_attribute sleep_timeout_attr = - __ATTR(sleep_timeout, 0644, sleep_timeout_show, sleep_timeout_store); - +DEVICE_ATTR(sleep_timeout, 0644, sleep_timeout_show, sleep_timeout_store); +#define DEV_CREATE_FILE(dev, attr) WARN_ON(device_create_file(dev, attr)) #else static inline void omap_uart_idle_init(struct omap_uart_state *uart) {} +#define DEV_CREATE_FILE(dev, attr) #endif /* CONFIG_PM */ -static struct platform_device serial_device = { - .name = "serial8250", - .id = PLAT8250_DEV_PLATFORM, - .dev = { - .platform_data = serial_platform_data, +static struct omap_uart_state omap_uart[OMAP_MAX_NR_PORTS] = { + { + .pdev = { + .name = "serial8250", + .id = PLAT8250_DEV_PLATFORM, + .dev = { + .platform_data = serial_platform_data0, + }, + }, + }, { + .pdev = { + .name = "serial8250", + .id = PLAT8250_DEV_PLATFORM1, + .dev = { + .platform_data = serial_platform_data1, + }, + }, + }, { + .pdev = { + .name = "serial8250", + .id = PLAT8250_DEV_PLATFORM2, + .dev = { + .platform_data = serial_platform_data2, + }, + }, }, }; void __init omap_serial_init(void) { - int i, err; + int i; const struct omap_uart_config *info; char name[16]; @@ -512,8 +570,10 @@ void __init omap_serial_init(void) return; for (i = 0; i < OMAP_MAX_NR_PORTS; i++) { - struct plat_serial8250_port *p = serial_platform_data + i; struct omap_uart_state *uart = &omap_uart[i]; + struct platform_device *pdev = &uart->pdev; + struct device *dev = &pdev->dev; + struct plat_serial8250_port *p = dev->platform_data; if (!(info->enabled_uarts & (1 << i))) { p->membase = NULL; @@ -549,15 +609,13 @@ void __init omap_serial_init(void) omap_uart_enable_clocks(uart); omap_uart_reset(uart); omap_uart_idle_init(uart); - } - - err = platform_device_register(&serial_device); - -#ifdef CONFIG_PM - if (!err) - err = sysfs_create_file(&serial_device.dev.kobj, - &sleep_timeout_attr.attr); -#endif + if (WARN_ON(platform_device_register(pdev))) + continue; + if ((cpu_is_omap34xx() && uart->padconf) || + (uart->wk_en && uart->wk_mask)) { + device_init_wakeup(dev, true); + DEV_CREATE_FILE(dev, &dev_attr_sleep_timeout); + } + } } - -- cgit v0.10.2 From bcf396c48012a5e4c7ab77be5c40df10d6bdb8ad Mon Sep 17 00:00:00 2001 From: Kevin Hilman Date: Tue, 30 Jun 2009 21:02:45 -0700 Subject: OMAP2/3/4: UART: allow in-order port traversal Use list_add_tail() when adding discovered UART ports. This is so traversal using list_for_each_entry() will traverse the list in the order they were found. Signed-off-by: Kevin Hilman diff --git a/arch/arm/mach-omap2/serial.c b/arch/arm/mach-omap2/serial.c index 6f35a7e..a7421a5 100644 --- a/arch/arm/mach-omap2/serial.c +++ b/arch/arm/mach-omap2/serial.c @@ -601,7 +601,7 @@ void __init omap_serial_init(void) uart->num = i; p->private_data = uart; uart->p = p; - list_add(&uart->node, &uart_list); + list_add_tail(&uart->node, &uart_list); if (cpu_is_omap44xx()) p->irq += 32; -- cgit v0.10.2 From 60c45ae1107c4ec47d2c84e5984ea59d02b2863d Mon Sep 17 00:00:00 2001 From: Eero Nurkkala Date: Tue, 23 Jun 2009 12:53:29 +0300 Subject: OMAP: PM: CPUfreq: obey min/max settings of policy Use the min/max settings from CPUfreq policy rather than processor defined min/max settings. Without this patch, it's possible to scale frequency outside the current policy range. Signed-off-by: Eero Nurkkala Signed-off-by: Kevin Hilman diff --git a/arch/arm/plat-omap/cpu-omap.c b/arch/arm/plat-omap/cpu-omap.c index 843e8af..1868c0d 100644 --- a/arch/arm/plat-omap/cpu-omap.c +++ b/arch/arm/plat-omap/cpu-omap.c @@ -78,10 +78,10 @@ static int omap_target(struct cpufreq_policy *policy, /* Ensure desired rate is within allowed range. Some govenors * (ondemand) will just pass target_freq=0 to get the minimum. */ - if (target_freq < policy->cpuinfo.min_freq) - target_freq = policy->cpuinfo.min_freq; - if (target_freq > policy->cpuinfo.max_freq) - target_freq = policy->cpuinfo.max_freq; + if (target_freq < policy->min) + target_freq = policy->min; + if (target_freq > policy->max) + target_freq = policy->max; freqs.old = omap_getspeed(0); freqs.new = clk_round_rate(mpu_clk, target_freq * 1000) / 1000; -- cgit v0.10.2 From 6c5f80393b107b0c9e2a54b03b65d1880e706655 Mon Sep 17 00:00:00 2001 From: Jouni Hogander Date: Wed, 29 Oct 2008 12:06:04 +0200 Subject: OMAP3: PM: Fix wrong sequence in suspend. Powerdomain previous state is checked after restoring new states in suspend. This patch fixes this problem. Signed-off-by: Jouni Hogander Signed-off-by: Kevin Hilman diff --git a/arch/arm/mach-omap2/pm34xx.c b/arch/arm/mach-omap2/pm34xx.c index b07efb2..488d595 100644 --- a/arch/arm/mach-omap2/pm34xx.c +++ b/arch/arm/mach-omap2/pm34xx.c @@ -326,7 +326,6 @@ static int omap3_pm_suspend(void) restore: /* Restore next_pwrsts */ list_for_each_entry(pwrst, &pwrst_list, node) { - set_pwrdm_state(pwrst->pwrdm, pwrst->saved_state); state = pwrdm_read_prev_pwrst(pwrst->pwrdm); if (state > pwrst->next_state) { printk(KERN_INFO "Powerdomain (%s) didn't enter " @@ -334,6 +333,7 @@ restore: pwrst->pwrdm->name, pwrst->next_state); ret = -1; } + set_pwrdm_state(pwrst->pwrdm, pwrst->saved_state); } if (ret) printk(KERN_ERR "Could not enter target state in pm_suspend\n"); -- cgit v0.10.2 From 55b6019ae29456e0f1e4087546bf4221c48622a0 Mon Sep 17 00:00:00 2001 From: Kevin Hilman Date: Thu, 4 Jun 2009 15:57:10 -0700 Subject: OMAP: GPIO: clear/restore level/edge detect settings on mask/unmask If IRQ triggering is enabled, it can trigger a pending interrupt even for masked interrupts. Any pending GPIO interrupts can prevent the powerdomain from hitting retention. Problem found, reported and additional review and testing by Chunquiu Wang. Tested-by: Chunquiu Wang Signed-off-by: Kevin Hilman diff --git a/arch/arm/plat-omap/gpio.c b/arch/arm/plat-omap/gpio.c index 26b387c..77bad14 100644 --- a/arch/arm/plat-omap/gpio.c +++ b/arch/arm/plat-omap/gpio.c @@ -1189,6 +1189,7 @@ static void gpio_mask_irq(unsigned int irq) struct gpio_bank *bank = get_irq_chip_data(irq); _set_gpio_irqenable(bank, gpio, 0); + _set_gpio_triggering(bank, get_gpio_index(gpio), IRQ_TYPE_NONE); } static void gpio_unmask_irq(unsigned int irq) @@ -1196,6 +1197,11 @@ static void gpio_unmask_irq(unsigned int irq) unsigned int gpio = irq - IH_GPIO_BASE; struct gpio_bank *bank = get_irq_chip_data(irq); unsigned int irq_mask = 1 << get_gpio_index(gpio); + struct irq_desc *desc = irq_to_desc(irq); + u32 trigger = desc->status & IRQ_TYPE_SENSE_MASK; + + if (trigger) + _set_gpio_triggering(bank, get_gpio_index(gpio), trigger); /* For level-triggered GPIOs, the clearing must be done after * the HW source is cleared, thus after the handler has run */ -- cgit v0.10.2 From 6fd210a9cc398ecbff7bcdbe220651b73b654f56 Mon Sep 17 00:00:00 2001 From: Kevin Hilman Date: Mon, 20 Jul 2009 09:09:23 -0700 Subject: OMAP3: Overo: add missing pen-down GPIO definition Signed-off-by: Kevin Hilman diff --git a/arch/arm/mach-omap2/board-overo.c b/arch/arm/mach-omap2/board-overo.c index dff5528..e26af83 100644 --- a/arch/arm/mach-omap2/board-overo.c +++ b/arch/arm/mach-omap2/board-overo.c @@ -51,6 +51,7 @@ #define OVERO_GPIO_BT_XGATE 15 #define OVERO_GPIO_W2W_NRESET 16 +#define OVERO_GPIO_PENDOWN 114 #define OVERO_GPIO_BT_NRESET 164 #define OVERO_GPIO_USBH_CPEN 168 #define OVERO_GPIO_USBH_NRESET 183 -- cgit v0.10.2 From f60f785679b507cbeeb03d2db080ab649ac86027 Mon Sep 17 00:00:00 2001 From: Dhananjay Phadke Date: Tue, 4 Aug 2009 10:39:03 +0000 Subject: netxen: fix dma mask update calculation Fix dma mask calculation that caps at 63-bit addressing even when firmware advertises full 64-bit support. Signed-off-by: Dhananjay Phadke Signed-off-by: David S. Miller diff --git a/drivers/net/netxen/netxen_nic_main.c b/drivers/net/netxen/netxen_nic_main.c index 3cd8cfc..70c05c4 100644 --- a/drivers/net/netxen/netxen_nic_main.c +++ b/drivers/net/netxen/netxen_nic_main.c @@ -260,7 +260,7 @@ nx_update_dma_mask(struct netxen_adapter *adapter) change = 0; shift = NXRD32(adapter, CRB_DMA_SHIFT); - if (shift >= 32) + if (shift > 32) return 0; if (NX_IS_REVISION_P3(adapter->ahw.revision_id) && (shift > 9)) @@ -272,7 +272,7 @@ nx_update_dma_mask(struct netxen_adapter *adapter) old_mask = pdev->dma_mask; old_cmask = pdev->dev.coherent_dma_mask; - mask = (1ULL<<(32+shift)) - 1; + mask = DMA_BIT_MASK(32+shift); err = pci_set_dma_mask(pdev, mask); if (err) -- cgit v0.10.2 From 476181cb05c6a3aea3ef42309388e255c934a06f Mon Sep 17 00:00:00 2001 From: Wei Yongjun Date: Tue, 4 Aug 2009 21:44:39 +0000 Subject: dccp: missing destroy of percpu counter variable while unload module percpu counter dccp_orphan_count is init in dccp_init() by percpu_counter_init() while dccp module is loaded, but the destroy of it is missing while dccp module is unloaded. We can get the kernel WARNING about this. Reproduct by the following commands: $ modprobe dccp $ rmmod dccp $ modprobe dccp WARNING: at lib/list_debug.c:26 __list_add+0x27/0x5c() Hardware name: VMware Virtual Platform list_add corruption. next->prev should be prev (c080c0c4), but was (null). (next =ca7188cc). Modules linked in: dccp(+) nfsd lockd nfs_acl auth_rpcgss exportfs sunrpc Pid: 1956, comm: modprobe Not tainted 2.6.31-rc5 #55 Call Trace: [] warn_slowpath_common+0x6a/0x81 [] ? __list_add+0x27/0x5c [] warn_slowpath_fmt+0x29/0x2c [] __list_add+0x27/0x5c [] __percpu_counter_init+0x4d/0x5d [] dccp_init+0x19/0x2ed [dccp] [] do_one_initcall+0x4f/0x111 [] ? dccp_init+0x0/0x2ed [dccp] [] ? notifier_call_chain+0x26/0x48 [] ? __blocking_notifier_call_chain+0x45/0x51 [] sys_init_module+0xac/0x1bd [] sysenter_do_call+0x12/0x22 Signed-off-by: Wei Yongjun Acked-by: Eric Dumazet Signed-off-by: David S. Miller diff --git a/net/dccp/proto.c b/net/dccp/proto.c index 94ca8ea..6294f57 100644 --- a/net/dccp/proto.c +++ b/net/dccp/proto.c @@ -1159,6 +1159,7 @@ static void __exit dccp_fini(void) kmem_cache_destroy(dccp_hashinfo.bind_bucket_cachep); dccp_ackvec_exit(); dccp_sysctl_exit(); + percpu_counter_destroy(&dccp_orphan_count); } module_init(dccp_init); -- cgit v0.10.2 From cf39c4c572dc54adbdf8933d1e6cd87ee94d8fc0 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Mon, 27 Jul 2009 08:03:18 -0700 Subject: phonet: phonet_device_get() fix MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit net/phonet/pn_dev.c: In function `phonet_device_get': net/phonet/pn_dev.c:99: warning: 'dev' might be used uninitialized in this function Signed-off-by: Eric Dumazet Acked-by: Rémi Denis-Courmont Signed-off-by: David S. Miller diff --git a/net/phonet/pn_dev.c b/net/phonet/pn_dev.c index b0d6ddd..c2b77a6 100644 --- a/net/phonet/pn_dev.c +++ b/net/phonet/pn_dev.c @@ -96,7 +96,7 @@ struct net_device *phonet_device_get(struct net *net) { struct phonet_device_list *pndevs = phonet_device_list(net); struct phonet_device *pnd; - struct net_device *dev; + struct net_device *dev = NULL; spin_lock_bh(&pndevs->lock); list_for_each_entry(pnd, &pndevs->list, list) { -- cgit v0.10.2 From b4adbb4ddf63091f48668e7ff1b9b0f6f84d4b40 Mon Sep 17 00:00:00 2001 From: Pascal Terjan Date: Wed, 5 Aug 2009 04:11:39 +0000 Subject: Add IDs for 3C905B-TX Fast Etherlink XL PCI We found this old card which was not supported, and physically looks similar to the other 3C905B we have (9055). After adding the IDs it seems to work fine (MII report, dhcp, scp, ...) Acked-by: Steffen Klassert Signed-off-by: David S. Miller diff --git a/drivers/net/3c59x.c b/drivers/net/3c59x.c index c204168..4567588 100644 --- a/drivers/net/3c59x.c +++ b/drivers/net/3c59x.c @@ -235,6 +235,7 @@ enum vortex_chips { CH_3C900B_FL, CH_3C905_1, CH_3C905_2, + CH_3C905B_TX, CH_3C905B_1, CH_3C905B_2, @@ -307,6 +308,8 @@ static struct vortex_chip_info { PCI_USES_MASTER, IS_BOOMERANG|HAS_MII|EEPROM_RESET, 64, }, {"3c905 Boomerang 100baseT4", PCI_USES_MASTER, IS_BOOMERANG|HAS_MII|EEPROM_RESET, 64, }, + {"3C905B-TX Fast Etherlink XL PCI", + PCI_USES_MASTER, IS_CYCLONE|HAS_NWAY|HAS_HWCKSM|EXTRA_PREAMBLE, 128, }, {"3c905B Cyclone 100baseTx", PCI_USES_MASTER, IS_CYCLONE|HAS_NWAY|HAS_HWCKSM|EXTRA_PREAMBLE, 128, }, @@ -389,6 +392,7 @@ static struct pci_device_id vortex_pci_tbl[] = { { 0x10B7, 0x900A, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C900B_FL }, { 0x10B7, 0x9050, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C905_1 }, { 0x10B7, 0x9051, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C905_2 }, + { 0x10B7, 0x9054, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C905B_TX }, { 0x10B7, 0x9055, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C905B_1 }, { 0x10B7, 0x9058, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C905B_2 }, -- cgit v0.10.2 From 45a41d147a3a31bb218201b0dd70cfe4e9ed5105 Mon Sep 17 00:00:00 2001 From: Dmitry Eremin-Solenikov Date: Sun, 2 Aug 2009 14:12:01 +0400 Subject: af_ieee802154: fix ioctl processing fix two errors in ioctl processing: 1) if the ioctl isn't supported one should return -ENOIOCTLCMD 2) don't call ndo_do_ioctl if the device doesn't provide it Signed-off-by: Dmitry Eremin-Solenikov diff --git a/net/ieee802154/af_ieee802154.c b/net/ieee802154/af_ieee802154.c index 3bb6bdb..af66180 100644 --- a/net/ieee802154/af_ieee802154.c +++ b/net/ieee802154/af_ieee802154.c @@ -136,7 +136,7 @@ static int ieee802154_dev_ioctl(struct sock *sk, struct ifreq __user *arg, unsigned int cmd) { struct ifreq ifr; - int ret = -EINVAL; + int ret = -ENOIOCTLCMD; struct net_device *dev; if (copy_from_user(&ifr, arg, sizeof(struct ifreq))) @@ -146,8 +146,10 @@ static int ieee802154_dev_ioctl(struct sock *sk, struct ifreq __user *arg, dev_load(sock_net(sk), ifr.ifr_name); dev = dev_get_by_name(sock_net(sk), ifr.ifr_name); - if (dev->type == ARPHRD_IEEE802154 || - dev->type == ARPHRD_IEEE802154_PHY) + + if ((dev->type == ARPHRD_IEEE802154 || + dev->type == ARPHRD_IEEE802154_PHY) && + dev->netdev_ops->ndo_do_ioctl) ret = dev->netdev_ops->ndo_do_ioctl(dev, &ifr, cmd); if (!ret && copy_to_user(arg, &ifr, sizeof(struct ifreq))) -- cgit v0.10.2 From a9dfac3353b03432e3d46a0dde6795588c46256d Mon Sep 17 00:00:00 2001 From: Dmitry Eremin-Solenikov Date: Mon, 3 Aug 2009 17:53:00 +0400 Subject: af_ieee802154: provide dummy get/setsockopt Provide dummt get/setsockopt implementations to stop these syscalls from oopsing on our sockets. Signed-off-by: Dmitry Eremin-Solenikov diff --git a/net/ieee802154/dgram.c b/net/ieee802154/dgram.c index 14d3984..ba8b214 100644 --- a/net/ieee802154/dgram.c +++ b/net/ieee802154/dgram.c @@ -377,6 +377,18 @@ int ieee802154_dgram_deliver(struct net_device *dev, struct sk_buff *skb) return ret; } +static int dgram_getsockopt(struct sock *sk, int level, int optname, + char __user *optval, int __user *optlen) +{ + return -EOPNOTSUPP; +} + +static int dgram_setsockopt(struct sock *sk, int level, int optname, + char __user *optval, int __user optlen) +{ + return -EOPNOTSUPP; +} + struct proto ieee802154_dgram_prot = { .name = "IEEE-802.15.4-MAC", .owner = THIS_MODULE, @@ -391,5 +403,7 @@ struct proto ieee802154_dgram_prot = { .connect = dgram_connect, .disconnect = dgram_disconnect, .ioctl = dgram_ioctl, + .getsockopt = dgram_getsockopt, + .setsockopt = dgram_setsockopt, }; diff --git a/net/ieee802154/raw.c b/net/ieee802154/raw.c index fca44d5..9315977 100644 --- a/net/ieee802154/raw.c +++ b/net/ieee802154/raw.c @@ -238,6 +238,18 @@ void ieee802154_raw_deliver(struct net_device *dev, struct sk_buff *skb) read_unlock(&raw_lock); } +static int raw_getsockopt(struct sock *sk, int level, int optname, + char __user *optval, int __user *optlen) +{ + return -EOPNOTSUPP; +} + +static int raw_setsockopt(struct sock *sk, int level, int optname, + char __user *optval, int __user optlen) +{ + return -EOPNOTSUPP; +} + struct proto ieee802154_raw_prot = { .name = "IEEE-802.15.4-RAW", .owner = THIS_MODULE, @@ -250,5 +262,7 @@ struct proto ieee802154_raw_prot = { .unhash = raw_unhash, .connect = raw_connect, .disconnect = raw_disconnect, + .getsockopt = raw_getsockopt, + .setsockopt = raw_setsockopt, }; -- cgit v0.10.2 From 17ac2e9c58b69a1e25460a568eae1b0dc0188c25 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Thu, 6 Aug 2009 03:34:06 +0000 Subject: rose: Fix rose_getname() leak rose_getname() can leak kernel memory to user. Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller diff --git a/net/rose/af_rose.c b/net/rose/af_rose.c index f0a76f6..e5f478c 100644 --- a/net/rose/af_rose.c +++ b/net/rose/af_rose.c @@ -954,6 +954,7 @@ static int rose_getname(struct socket *sock, struct sockaddr *uaddr, struct rose_sock *rose = rose_sk(sk); int n; + memset(srose, 0, sizeof(*srose)); if (peer != 0) { if (sk->sk_state != TCP_ESTABLISHED) return -ENOTCONN; -- cgit v0.10.2 From 80922bbb12a105f858a8f0abb879cb4302d0ecaa Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Thu, 6 Aug 2009 03:48:36 +0000 Subject: econet: Fix econet_getname() leak econet_getname() can leak kernel memory to user. Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller diff --git a/net/econet/af_econet.c b/net/econet/af_econet.c index 2e1f836..f0bbc57 100644 --- a/net/econet/af_econet.c +++ b/net/econet/af_econet.c @@ -520,6 +520,7 @@ static int econet_getname(struct socket *sock, struct sockaddr *uaddr, if (peer) return -EOPNOTSUPP; + memset(sec, 0, sizeof(*sec)); mutex_lock(&econet_mutex); sk = sock->sk; -- cgit v0.10.2 From f6b97b29513950bfbf621a83d85b6f86b39ec8db Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Thu, 6 Aug 2009 03:31:07 +0000 Subject: netrom: Fix nr_getname() leak nr_getname() can leak kernel memory to user. Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller diff --git a/net/netrom/af_netrom.c b/net/netrom/af_netrom.c index ce51ce0..ce1a34b 100644 --- a/net/netrom/af_netrom.c +++ b/net/netrom/af_netrom.c @@ -847,6 +847,7 @@ static int nr_getname(struct socket *sock, struct sockaddr *uaddr, sax->fsa_ax25.sax25_family = AF_NETROM; sax->fsa_ax25.sax25_ndigis = 1; sax->fsa_ax25.sax25_call = nr->user_addr; + memset(sax->fsa_digipeater, 0, sizeof(sax->fsa_digipeater)); sax->fsa_digipeater[0] = nr->dest_addr; *uaddr_len = sizeof(struct full_sockaddr_ax25); } else { -- cgit v0.10.2 From 3d392475c873c10c10d6d96b94d092a34ebd4791 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Thu, 6 Aug 2009 02:27:43 +0000 Subject: appletalk: fix atalk_getname() leak atalk_getname() can leak 8 bytes of kernel memory to user Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller diff --git a/net/appletalk/ddp.c b/net/appletalk/ddp.c index 590b839..9ef6ff2 100644 --- a/net/appletalk/ddp.c +++ b/net/appletalk/ddp.c @@ -1237,6 +1237,7 @@ static int atalk_getname(struct socket *sock, struct sockaddr *uaddr, return -ENOBUFS; *uaddr_len = sizeof(struct sockaddr_at); + memset(&sat.sat_zero, 0, sizeof(sat.sat_zero)); if (peer) { if (sk->sk_state != TCP_ESTABLISHED) -- cgit v0.10.2 From 09384dfc76e526c3993c09c42e016372dc9dd22c Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Thu, 6 Aug 2009 03:55:04 +0000 Subject: irda: Fix irda_getname() leak irda_getname() can leak kernel memory to user. Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller diff --git a/net/irda/af_irda.c b/net/irda/af_irda.c index cb762c8..3ec2b43 100644 --- a/net/irda/af_irda.c +++ b/net/irda/af_irda.c @@ -714,6 +714,7 @@ static int irda_getname(struct socket *sock, struct sockaddr *uaddr, struct sock *sk = sock->sk; struct irda_sock *self = irda_sk(sk); + memset(&saddr, 0, sizeof(saddr)); if (peer) { if (sk->sk_state != TCP_ESTABLISHED) return -ENOTCONN; -- cgit v0.10.2 From afc5e65245255a268ab22a20477ed2c9f2cdfcd3 Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Fri, 7 Aug 2009 16:33:53 +0200 Subject: ASoC: Add missing DRV_NAME definitions for fsl/* drivers Module builds are broken due to missing DRV_NAME for efika-audio-fabric and pcm030-audio-fabric. Signed-off-by: Takashi Iwai diff --git a/sound/soc/fsl/efika-audio-fabric.c b/sound/soc/fsl/efika-audio-fabric.c index 85b0e75..3326e2a 100644 --- a/sound/soc/fsl/efika-audio-fabric.c +++ b/sound/soc/fsl/efika-audio-fabric.c @@ -30,6 +30,8 @@ #include "mpc5200_psc_ac97.h" #include "../codecs/stac9766.h" +#define DRV_NAME "efika-audio-fabric" + static struct snd_soc_device device; static struct snd_soc_card card; diff --git a/sound/soc/fsl/pcm030-audio-fabric.c b/sound/soc/fsl/pcm030-audio-fabric.c index 8766f7a..b928ef7 100644 --- a/sound/soc/fsl/pcm030-audio-fabric.c +++ b/sound/soc/fsl/pcm030-audio-fabric.c @@ -30,6 +30,8 @@ #include "mpc5200_psc_ac97.h" #include "../codecs/wm9712.h" +#define DRV_NAME "pcm030-audio-fabric" + static struct snd_soc_device device; static struct snd_soc_card card; -- cgit v0.10.2 From 7dd2459d8f7a967bcd1466591aec72bb3ddc07cc Mon Sep 17 00:00:00 2001 From: Zhu Yi Date: Mon, 27 Jul 2009 10:10:20 +0800 Subject: ipw2x00: Write outside array bounds > channel_index loops up to IPW_SCAN_CHANNELS, but is used after being > incremented. This might be able to access 1 past the end of the array Reported-by: Roel Kluin Signed-off-by: John W. Linville diff --git a/drivers/net/wireless/ipw2x00/ipw2200.c b/drivers/net/wireless/ipw2x00/ipw2200.c index 44c29b3..6dcac73 100644 --- a/drivers/net/wireless/ipw2x00/ipw2200.c +++ b/drivers/net/wireless/ipw2x00/ipw2200.c @@ -6226,7 +6226,7 @@ static void ipw_add_scan_channels(struct ipw_priv *priv, }; u8 channel; - while (channel_index < IPW_SCAN_CHANNELS) { + while (channel_index < IPW_SCAN_CHANNELS - 1) { channel = priv->speed_scan[priv->speed_scan_pos]; if (channel == 0) { -- cgit v0.10.2 From d25f9f1357139bbdc79bc960ea84909a7c22ec2b Mon Sep 17 00:00:00 2001 From: Lennert Buytenhek Date: Mon, 3 Aug 2009 21:58:26 +0200 Subject: mwl8k: fix NULL pointer dereference on receive out-of-memory When we go into out-of-memory and fail to allocate skbuffs to refill the receive ring with, rxq_process can end up running into a receive ring entry that is marked as host-owned but doesn't have an associated skbuff. If this happens, we must break out of the rx processing loop instead of trying to process the descriptor. Signed-off-by: Lennert Buytenhek Acked-by: Nicolas Pitre Signed-off-by: John W. Linville diff --git a/drivers/net/wireless/mwl8k.c b/drivers/net/wireless/mwl8k.c index a263d5c..71f3eb6 100644 --- a/drivers/net/wireless/mwl8k.c +++ b/drivers/net/wireless/mwl8k.c @@ -1012,6 +1012,8 @@ static int rxq_process(struct ieee80211_hw *hw, int index, int limit) rmb(); skb = rxq->rx_skb[rxq->rx_head]; + if (skb == NULL) + break; rxq->rx_skb[rxq->rx_head] = NULL; rxq->rx_head = (rxq->rx_head + 1) % MWL8K_RX_DESCS; -- cgit v0.10.2 From 4ff6432ea620ba467e50ec04b8271ea0eb94e62e Mon Sep 17 00:00:00 2001 From: Lennert Buytenhek Date: Mon, 3 Aug 2009 21:58:39 +0200 Subject: mwl8k: add various missing GET_HW_SPEC endian conversions Signed-off-by: Lennert Buytenhek Acked-by: Nicolas Pitre Signed-off-by: John W. Linville diff --git a/drivers/net/wireless/mwl8k.c b/drivers/net/wireless/mwl8k.c index 71f3eb6..9643aa4 100644 --- a/drivers/net/wireless/mwl8k.c +++ b/drivers/net/wireless/mwl8k.c @@ -1656,18 +1656,18 @@ static int mwl8k_cmd_get_hw_spec(struct ieee80211_hw *hw) memset(cmd->perm_addr, 0xff, sizeof(cmd->perm_addr)); cmd->ps_cookie = cpu_to_le32(priv->cookie_dma); cmd->rx_queue_ptr = cpu_to_le32(priv->rxq[0].rx_desc_dma); - cmd->num_tx_queues = MWL8K_TX_QUEUES; + cmd->num_tx_queues = cpu_to_le32(MWL8K_TX_QUEUES); for (i = 0; i < MWL8K_TX_QUEUES; i++) cmd->tx_queue_ptrs[i] = cpu_to_le32(priv->txq[i].tx_desc_dma); - cmd->num_tx_desc_per_queue = MWL8K_TX_DESCS; - cmd->total_rx_desc = MWL8K_RX_DESCS; + cmd->num_tx_desc_per_queue = cpu_to_le32(MWL8K_TX_DESCS); + cmd->total_rx_desc = cpu_to_le32(MWL8K_RX_DESCS); rc = mwl8k_post_cmd(hw, &cmd->header); if (!rc) { SET_IEEE80211_PERM_ADDR(hw, cmd->perm_addr); priv->num_mcaddrs = le16_to_cpu(cmd->num_mcaddrs); - priv->fw_rev = cmd->fw_rev; + priv->fw_rev = le32_to_cpu(cmd->fw_rev); priv->hw_rev = cmd->hw_rev; priv->region_code = le16_to_cpu(cmd->region_code); } -- cgit v0.10.2 From 37055bd455b31b8220c35a1ede9c6aceb791cc88 Mon Sep 17 00:00:00 2001 From: Lennert Buytenhek Date: Mon, 3 Aug 2009 21:58:47 +0200 Subject: mwl8k: call pci_unmap_single() before accessing command structure again Signed-off-by: Lennert Buytenhek Acked-by: Nicolas Pitre Signed-off-by: John W. Linville diff --git a/drivers/net/wireless/mwl8k.c b/drivers/net/wireless/mwl8k.c index 9643aa4..25423c0 100644 --- a/drivers/net/wireless/mwl8k.c +++ b/drivers/net/wireless/mwl8k.c @@ -1593,6 +1593,9 @@ static int mwl8k_post_cmd(struct ieee80211_hw *hw, struct mwl8k_cmd_pkt *cmd) timeout = wait_for_completion_timeout(&cmd_wait, msecs_to_jiffies(MWL8K_CMD_TIMEOUT_MS)); + pci_unmap_single(priv->pdev, dma_addr, dma_size, + PCI_DMA_BIDIRECTIONAL); + result = &cmd->result; if (!timeout) { spin_lock_irq(&priv->fw_lock); @@ -1612,8 +1615,6 @@ static int mwl8k_post_cmd(struct ieee80211_hw *hw, struct mwl8k_cmd_pkt *cmd) *result); } - pci_unmap_single(priv->pdev, dma_addr, dma_size, - PCI_DMA_BIDIRECTIONAL); return rc; } -- cgit v0.10.2 From a94cc97e14c5750ec2b50b2e4ecdfb0f369ed0f4 Mon Sep 17 00:00:00 2001 From: Lennert Buytenhek Date: Mon, 3 Aug 2009 21:58:57 +0200 Subject: mwl8k: prevent crash in ->configure_filter() if no interface was added Signed-off-by: Lennert Buytenhek Acked-by: Nicolas Pitre Signed-off-by: John W. Linville diff --git a/drivers/net/wireless/mwl8k.c b/drivers/net/wireless/mwl8k.c index 25423c0..6e49117 100644 --- a/drivers/net/wireless/mwl8k.c +++ b/drivers/net/wireless/mwl8k.c @@ -261,7 +261,7 @@ struct mwl8k_vif { */ }; -#define MWL8K_VIF(_vif) (struct mwl8k_vif *)(&((_vif)->drv_priv)) +#define MWL8K_VIF(_vif) ((struct mwl8k_vif *)&((_vif)->drv_priv)) static const struct ieee80211_channel mwl8k_channels[] = { { .center_freq = 2412, .hw_value = 1, }, @@ -3219,15 +3219,19 @@ static int mwl8k_configure_filter_wt(struct work_struct *wt) struct dev_addr_list *mclist = worker->mclist; struct mwl8k_priv *priv = hw->priv; - struct mwl8k_vif *mv_vif; int rc = 0; if (changed_flags & FIF_BCN_PRBRESP_PROMISC) { if (*total_flags & FIF_BCN_PRBRESP_PROMISC) rc = mwl8k_cmd_set_pre_scan(hw); else { - mv_vif = MWL8K_VIF(priv->vif); - rc = mwl8k_cmd_set_post_scan(hw, mv_vif->bssid); + u8 *bssid; + + bssid = "\x00\x00\x00\x00\x00\x00"; + if (priv->vif != NULL) + bssid = MWL8K_VIF(priv->vif)->bssid; + + rc = mwl8k_cmd_set_post_scan(hw, bssid); } } -- cgit v0.10.2 From 60aa569f9212a13382c29cc734f275dec0f55e0b Mon Sep 17 00:00:00 2001 From: Lennert Buytenhek Date: Mon, 3 Aug 2009 21:59:09 +0200 Subject: mwl8k: prevent module unload hang We need to unregister our ieee80211_hw before resetting the chip, as the former causes firmware commands to be issued which will time out once the chip has been reset. Signed-off-by: Lennert Buytenhek Acked-by: Nicolas Pitre Signed-off-by: John W. Linville diff --git a/drivers/net/wireless/mwl8k.c b/drivers/net/wireless/mwl8k.c index 6e49117..83967af 100644 --- a/drivers/net/wireless/mwl8k.c +++ b/drivers/net/wireless/mwl8k.c @@ -3733,6 +3733,8 @@ static void __devexit mwl8k_remove(struct pci_dev *pdev) ieee80211_stop_queues(hw); + ieee80211_unregister_hw(hw); + /* Remove tx reclaim tasklet */ tasklet_kill(&priv->tx_reclaim_task); @@ -3746,8 +3748,6 @@ static void __devexit mwl8k_remove(struct pci_dev *pdev) for (i = 0; i < MWL8K_TX_QUEUES; i++) mwl8k_txq_reclaim(hw, i, 1); - ieee80211_unregister_hw(hw); - for (i = 0; i < MWL8K_TX_QUEUES; i++) mwl8k_txq_deinit(hw, i); -- cgit v0.10.2 From dd1f57ecaf9688efa69d982652ecfa3e64f1fa55 Mon Sep 17 00:00:00 2001 From: Bob Dunlop Date: Thu, 6 Aug 2009 12:01:03 -0400 Subject: libertas: correct packing of rxpd structure Older Gcc compilers (3.4.5 tested) need additional hints in order to get the packing of the rxpd structure (which contains a 16 bit union) correct on the ARM processor. struct txpd does not need these hints since it contains a 32 bit union that packs naturally. Signed-off-by: R.J.Dunlop Acked-by: Dan Williams Signed-off-by: John W. Linville diff --git a/drivers/net/wireless/libertas/hostcmd.h b/drivers/net/wireless/libertas/hostcmd.h index 0a2e291..c8a1998 100644 --- a/drivers/net/wireless/libertas/hostcmd.h +++ b/drivers/net/wireless/libertas/hostcmd.h @@ -56,8 +56,8 @@ struct rxpd { u8 bss_type; /* BSS number */ u8 bss_num; - } bss; - } u; + } __attribute__ ((packed)) bss; + } __attribute__ ((packed)) u; /* SNR */ u8 snr; -- cgit v0.10.2 From e7432675f8ca868a4af365759a8d4c3779a3d922 Mon Sep 17 00:00:00 2001 From: Sunil Mushran Date: Thu, 6 Aug 2009 16:12:58 -0700 Subject: ocfs2: Initialize the cluster we're writing to in a non-sparse extend In a non-sparse extend, we correctly allocate (and zero) the clusters between the old_i_size and pos, but we don't zero the portions of the cluster we're writing to outside of pos<->len. It handles clustersize > pagesize and blocksize < pagesize. [Cleaned up by Joel Becker.] Signed-off-by: Sunil Mushran Signed-off-by: Joel Becker diff --git a/fs/ocfs2/aops.c b/fs/ocfs2/aops.c index e511df1..b401654 100644 --- a/fs/ocfs2/aops.c +++ b/fs/ocfs2/aops.c @@ -895,18 +895,17 @@ struct ocfs2_write_cluster_desc { */ unsigned c_new; unsigned c_unwritten; + unsigned c_needs_zero; }; -static inline int ocfs2_should_zero_cluster(struct ocfs2_write_cluster_desc *d) -{ - return d->c_new || d->c_unwritten; -} - struct ocfs2_write_ctxt { /* Logical cluster position / len of write */ u32 w_cpos; u32 w_clen; + /* First cluster allocated in a nonsparse extend */ + u32 w_first_new_cpos; + struct ocfs2_write_cluster_desc w_desc[OCFS2_MAX_CLUSTERS_PER_PAGE]; /* @@ -984,6 +983,7 @@ static int ocfs2_alloc_write_ctxt(struct ocfs2_write_ctxt **wcp, return -ENOMEM; wc->w_cpos = pos >> osb->s_clustersize_bits; + wc->w_first_new_cpos = UINT_MAX; cend = (pos + len - 1) >> osb->s_clustersize_bits; wc->w_clen = cend - wc->w_cpos + 1; get_bh(di_bh); @@ -1218,20 +1218,18 @@ out: */ static int ocfs2_write_cluster(struct address_space *mapping, u32 phys, unsigned int unwritten, + unsigned int should_zero, struct ocfs2_alloc_context *data_ac, struct ocfs2_alloc_context *meta_ac, struct ocfs2_write_ctxt *wc, u32 cpos, loff_t user_pos, unsigned user_len) { - int ret, i, new, should_zero = 0; + int ret, i, new; u64 v_blkno, p_blkno; struct inode *inode = mapping->host; struct ocfs2_extent_tree et; new = phys == 0 ? 1 : 0; - if (new || unwritten) - should_zero = 1; - if (new) { u32 tmp_pos; @@ -1342,7 +1340,9 @@ static int ocfs2_write_cluster_by_desc(struct address_space *mapping, local_len = osb->s_clustersize - cluster_off; ret = ocfs2_write_cluster(mapping, desc->c_phys, - desc->c_unwritten, data_ac, meta_ac, + desc->c_unwritten, + desc->c_needs_zero, + data_ac, meta_ac, wc, desc->c_cpos, pos, local_len); if (ret) { mlog_errno(ret); @@ -1392,14 +1392,14 @@ static void ocfs2_set_target_boundaries(struct ocfs2_super *osb, * newly allocated cluster. */ desc = &wc->w_desc[0]; - if (ocfs2_should_zero_cluster(desc)) + if (desc->c_needs_zero) ocfs2_figure_cluster_boundaries(osb, desc->c_cpos, &wc->w_target_from, NULL); desc = &wc->w_desc[wc->w_clen - 1]; - if (ocfs2_should_zero_cluster(desc)) + if (desc->c_needs_zero) ocfs2_figure_cluster_boundaries(osb, desc->c_cpos, NULL, @@ -1467,13 +1467,28 @@ static int ocfs2_populate_write_desc(struct inode *inode, phys++; } + /* + * If w_first_new_cpos is < UINT_MAX, we have a non-sparse + * file that got extended. w_first_new_cpos tells us + * where the newly allocated clusters are so we can + * zero them. + */ + if (desc->c_cpos >= wc->w_first_new_cpos) { + BUG_ON(phys == 0); + desc->c_needs_zero = 1; + } + desc->c_phys = phys; if (phys == 0) { desc->c_new = 1; + desc->c_needs_zero = 1; *clusters_to_alloc = *clusters_to_alloc + 1; } - if (ext_flags & OCFS2_EXT_UNWRITTEN) + + if (ext_flags & OCFS2_EXT_UNWRITTEN) { desc->c_unwritten = 1; + desc->c_needs_zero = 1; + } num_clusters--; } @@ -1633,10 +1648,13 @@ static int ocfs2_expand_nonsparse_inode(struct inode *inode, loff_t pos, if (newsize <= i_size_read(inode)) return 0; - ret = ocfs2_extend_no_holes(inode, newsize, newsize - len); + ret = ocfs2_extend_no_holes(inode, newsize, pos); if (ret) mlog_errno(ret); + wc->w_first_new_cpos = + ocfs2_clusters_for_bytes(inode->i_sb, i_size_read(inode)); + return ret; } @@ -1645,7 +1663,7 @@ int ocfs2_write_begin_nolock(struct address_space *mapping, struct page **pagep, void **fsdata, struct buffer_head *di_bh, struct page *mmap_page) { - int ret, credits = OCFS2_INODE_UPDATE_CREDITS; + int ret, cluster_of_pages, credits = OCFS2_INODE_UPDATE_CREDITS; unsigned int clusters_to_alloc, extents_to_split; struct ocfs2_write_ctxt *wc; struct inode *inode = mapping->host; @@ -1723,8 +1741,19 @@ int ocfs2_write_begin_nolock(struct address_space *mapping, } - ocfs2_set_target_boundaries(osb, wc, pos, len, - clusters_to_alloc + extents_to_split); + /* + * We have to zero sparse allocated clusters, unwritten extent clusters, + * and non-sparse clusters we just extended. For non-sparse writes, + * we know zeros will only be needed in the first and/or last cluster. + */ + if (clusters_to_alloc || extents_to_split || + wc->w_desc[0].c_needs_zero || + wc->w_desc[wc->w_clen - 1].c_needs_zero) + cluster_of_pages = 1; + else + cluster_of_pages = 0; + + ocfs2_set_target_boundaries(osb, wc, pos, len, cluster_of_pages); handle = ocfs2_start_trans(osb, credits); if (IS_ERR(handle)) { @@ -1757,8 +1786,7 @@ int ocfs2_write_begin_nolock(struct address_space *mapping, * extent. */ ret = ocfs2_grab_pages_for_write(mapping, wc, wc->w_cpos, pos, - clusters_to_alloc + extents_to_split, - mmap_page); + cluster_of_pages, mmap_page); if (ret) { mlog_errno(ret); goto out_quota; -- cgit v0.10.2 From 8a57a9dda760ea7845390f1cd36f3eb2a49391d8 Mon Sep 17 00:00:00 2001 From: Roel Kluin Date: Thu, 6 Aug 2009 16:07:50 -0700 Subject: ocfs2: keep index within status_map[] Do not exceed array status_map[] Signed-off-by: Roel Kluin Cc: Mark Fasheh Signed-off-by: Andrew Morton Signed-off-by: Joel Becker diff --git a/fs/ocfs2/stack_o2cb.c b/fs/ocfs2/stack_o2cb.c index 3f66137..e49c410 100644 --- a/fs/ocfs2/stack_o2cb.c +++ b/fs/ocfs2/stack_o2cb.c @@ -17,6 +17,7 @@ * General Public License for more details. */ +#include #include #include @@ -153,7 +154,7 @@ static int status_map[] = { static int dlm_status_to_errno(enum dlm_status status) { - BUG_ON(status > (sizeof(status_map) / sizeof(status_map[0]))); + BUG_ON(status < 0 || status >= ARRAY_SIZE(status_map)); return status_map[status]; } -- cgit v0.10.2 From c8c00a6915a2e3d10416e8bdd3138429beb96210 Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Mon, 10 Aug 2009 12:50:52 +1000 Subject: Remove deadlock potential in md_open A recent commit: commit 449aad3e25358812c43afc60918c5ad3819488e7 introduced the possibility of an A-B/B-A deadlock between bd_mutex and reconfig_mutex. __blkdev_get holds bd_mutex while calling md_open which takes reconfig_mutex, do_md_run is always called with reconfig_mutex held, and it now takes bd_mutex in the call the revalidate_disk. This potential deadlock was not caught by lockdep due to the use of mutex_lock_interruptible_nexted which was introduced by commit d63a5a74dee87883fda6b7d170244acaac5b05e8 do avoid a warning of an impossible deadlock. It is quite possible to split reconfig_mutex in to two locks. One protects the array data structures while it is being reconfigured, the other ensures that an array is never even partially open while it is being deactivated. In particular, the second lock prevents an open from completing between the time when do_md_stop checks if there are any active opens, and the time when the array is either set read-only, or when ->pers is set to NULL. So we can be certain that no IO is in flight as the array is being destroyed. So create a new lock, open_mutex, just to ensure exclusion between 'open' and 'stop'. This avoids the deadlock and also avoids the lockdep warning mentioned in commit d63a5a74d Reported-by: "Mike Snitzer" Reported-by: "H. Peter Anvin" Signed-off-by: NeilBrown diff --git a/drivers/md/md.c b/drivers/md/md.c index 5b98bea..5614500 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -359,6 +359,7 @@ static mddev_t * mddev_find(dev_t unit) else new->md_minor = MINOR(unit) >> MdpMinorShift; + mutex_init(&new->open_mutex); mutex_init(&new->reconfig_mutex); INIT_LIST_HEAD(&new->disks); INIT_LIST_HEAD(&new->all_mddevs); @@ -4304,12 +4305,11 @@ static int do_md_stop(mddev_t * mddev, int mode, int is_open) struct gendisk *disk = mddev->gendisk; mdk_rdev_t *rdev; + mutex_lock(&mddev->open_mutex); if (atomic_read(&mddev->openers) > is_open) { printk("md: %s still in use.\n",mdname(mddev)); - return -EBUSY; - } - - if (mddev->pers) { + err = -EBUSY; + } else if (mddev->pers) { if (mddev->sync_thread) { set_bit(MD_RECOVERY_FROZEN, &mddev->recovery); @@ -4367,7 +4367,10 @@ static int do_md_stop(mddev_t * mddev, int mode, int is_open) set_disk_ro(disk, 1); clear_bit(MD_RECOVERY_FROZEN, &mddev->recovery); } - +out: + mutex_unlock(&mddev->open_mutex); + if (err) + return err; /* * Free resources if final stop */ @@ -4433,7 +4436,6 @@ static int do_md_stop(mddev_t * mddev, int mode, int is_open) blk_integrity_unregister(disk); md_new_event(mddev); sysfs_notify_dirent(mddev->sysfs_state); -out: return err; } @@ -5518,12 +5520,12 @@ static int md_open(struct block_device *bdev, fmode_t mode) } BUG_ON(mddev != bdev->bd_disk->private_data); - if ((err = mutex_lock_interruptible_nested(&mddev->reconfig_mutex, 1))) + if ((err = mutex_lock_interruptible(&mddev->open_mutex))) goto out; err = 0; atomic_inc(&mddev->openers); - mddev_unlock(mddev); + mutex_unlock(&mddev->open_mutex); check_disk_change(bdev); out: diff --git a/drivers/md/md.h b/drivers/md/md.h index 78f0316..f8fc188 100644 --- a/drivers/md/md.h +++ b/drivers/md/md.h @@ -223,6 +223,16 @@ struct mddev_s * so we don't loop trying */ int in_sync; /* know to not need resync */ + /* 'open_mutex' avoids races between 'md_open' and 'do_md_stop', so + * that we are never stopping an array while it is open. + * 'reconfig_mutex' protects all other reconfiguration. + * These locks are separate due to conflicting interactions + * with bdev->bd_mutex. + * Lock ordering is: + * reconfig_mutex -> bd_mutex : e.g. do_md_run -> revalidate_disk + * bd_mutex -> open_mutex: e.g. __blkdev_get -> md_open + */ + struct mutex open_mutex; struct mutex reconfig_mutex; atomic_t active; /* general refcount */ atomic_t openers; /* number of active opens */ -- cgit v0.10.2 From cb2f33e9596632979c140c243ac1e8e994f62180 Mon Sep 17 00:00:00 2001 From: Chris Snook Date: Thu, 6 Aug 2009 12:19:31 +0000 Subject: MAINTAINERS: update atlx contact info Update MAINTAINERS to reflect my current (non-)affiliation. Anyone hiring? Signed-off-by: Chris Snook Cc: Jay Cliburn Cc: Jie Yang Cc: "David S. Miller" Signed-off-by: Andrew Morton Signed-off-by: David S. Miller diff --git a/MAINTAINERS b/MAINTAINERS index b1114cf..fa76ad0 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -904,7 +904,7 @@ F: drivers/input/misc/ati_remote2.c ATLX ETHERNET DRIVERS M: Jay Cliburn -M: Chris Snook +M: Chris Snook M: Jie Yang L: atl1-devel@lists.sourceforge.net W: http://sourceforge.net/projects/atl1 -- cgit v0.10.2 From 5d5ceb8bdde403529ad9849f300dc80b1884550f Mon Sep 17 00:00:00 2001 From: Roel Kluin Date: Thu, 6 Aug 2009 13:06:03 +0000 Subject: irda: fix read buffer overflow io[i] is read before the bounds check on i, order should be reversed. Signed-off-by: Roel Kluin Cc: Samuel Ortiz Signed-off-by: Andrew Morton Signed-off-by: David S. Miller diff --git a/drivers/net/irda/w83977af_ir.c b/drivers/net/irda/w83977af_ir.c index d088383..fe4f2b2 100644 --- a/drivers/net/irda/w83977af_ir.c +++ b/drivers/net/irda/w83977af_ir.c @@ -115,7 +115,7 @@ static int __init w83977af_init(void) IRDA_DEBUG(0, "%s()\n", __func__ ); - for (i=0; (io[i] < 2000) && (i < ARRAY_SIZE(dev_self)); i++) { + for (i=0; i < ARRAY_SIZE(dev_self) && io[i] < 2000; i++) { if (w83977af_open(i, io[i], irq[i], dma[i]) == 0) return 0; } -- cgit v0.10.2 From 082ba88a5e6b1425abed3fae4ad65e0e985ed081 Mon Sep 17 00:00:00 2001 From: Roel Kluin Date: Thu, 6 Aug 2009 13:06:56 +0000 Subject: atlx: strncpy does not null terminate string strlcpy() will always null terminate the string. Signed-off-by: Roel Kluin Cc: Jay Cliburn Cc: Chris Snook Cc: Jie Yang Signed-off-by: Andrew Morton Signed-off-by: David S. Miller diff --git a/drivers/net/atl1c/atl1c_ethtool.c b/drivers/net/atl1c/atl1c_ethtool.c index 607007d..00d11b4 100644 --- a/drivers/net/atl1c/atl1c_ethtool.c +++ b/drivers/net/atl1c/atl1c_ethtool.c @@ -232,11 +232,11 @@ static void atl1c_get_drvinfo(struct net_device *netdev, { struct atl1c_adapter *adapter = netdev_priv(netdev); - strncpy(drvinfo->driver, atl1c_driver_name, sizeof(drvinfo->driver)); - strncpy(drvinfo->version, atl1c_driver_version, + strlcpy(drvinfo->driver, atl1c_driver_name, sizeof(drvinfo->driver)); + strlcpy(drvinfo->version, atl1c_driver_version, sizeof(drvinfo->version)); - strncpy(drvinfo->fw_version, "N/A", sizeof(drvinfo->fw_version)); - strncpy(drvinfo->bus_info, pci_name(adapter->pdev), + strlcpy(drvinfo->fw_version, "N/A", sizeof(drvinfo->fw_version)); + strlcpy(drvinfo->bus_info, pci_name(adapter->pdev), sizeof(drvinfo->bus_info)); drvinfo->n_stats = 0; drvinfo->testinfo_len = 0; diff --git a/drivers/net/atlx/atl1.c b/drivers/net/atlx/atl1.c index 94d7325..8bca12f 100644 --- a/drivers/net/atlx/atl1.c +++ b/drivers/net/atlx/atl1.c @@ -3378,11 +3378,11 @@ static void atl1_get_drvinfo(struct net_device *netdev, { struct atl1_adapter *adapter = netdev_priv(netdev); - strncpy(drvinfo->driver, ATLX_DRIVER_NAME, sizeof(drvinfo->driver)); - strncpy(drvinfo->version, ATLX_DRIVER_VERSION, + strlcpy(drvinfo->driver, ATLX_DRIVER_NAME, sizeof(drvinfo->driver)); + strlcpy(drvinfo->version, ATLX_DRIVER_VERSION, sizeof(drvinfo->version)); - strncpy(drvinfo->fw_version, "N/A", sizeof(drvinfo->fw_version)); - strncpy(drvinfo->bus_info, pci_name(adapter->pdev), + strlcpy(drvinfo->fw_version, "N/A", sizeof(drvinfo->fw_version)); + strlcpy(drvinfo->bus_info, pci_name(adapter->pdev), sizeof(drvinfo->bus_info)); drvinfo->eedump_len = ATL1_EEDUMP_LEN; } -- cgit v0.10.2 From b79a79471bd31d737c939a6ddc347417047b4320 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Jussi=20M=C3=A4ki?= Date: Thu, 6 Aug 2009 21:38:14 +0000 Subject: Fix xfrm hash collisions by changing __xfrm4_daddr_saddr_hash to hash addresses with addition This patch fixes hash collisions in cases where number of entries have incrementing IP source and destination addresses from single respective subnets (i.e. 192.168.0.1-172.16.0.1, 192.168.0.2-172.16.0.2, and so on.). Signed-off-by: Jussi Maki Signed-off-by: David S. Miller diff --git a/net/xfrm/xfrm_hash.h b/net/xfrm/xfrm_hash.h index d401dc8..e5195c9 100644 --- a/net/xfrm/xfrm_hash.h +++ b/net/xfrm/xfrm_hash.h @@ -16,7 +16,7 @@ static inline unsigned int __xfrm6_addr_hash(xfrm_address_t *addr) static inline unsigned int __xfrm4_daddr_saddr_hash(xfrm_address_t *daddr, xfrm_address_t *saddr) { - return ntohl(daddr->a4 ^ saddr->a4); + return ntohl(daddr->a4 + saddr->a4); } static inline unsigned int __xfrm6_daddr_saddr_hash(xfrm_address_t *daddr, xfrm_address_t *saddr) -- cgit v0.10.2 From e84b90ae5eb3c112d1f208964df1d8156a538289 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Thu, 6 Aug 2009 20:27:04 +0000 Subject: can: Fix raw_getname() leak raw_getname() can leak 10 bytes of kernel memory to user (two bytes hole between can_family and can_ifindex, 8 bytes at the end of sockaddr_can structure) Signed-off-by: Eric Dumazet Acked-by: Oliver Hartkopp Signed-off-by: David S. Miller diff --git a/net/can/raw.c b/net/can/raw.c index f4cc445..db3152df 100644 --- a/net/can/raw.c +++ b/net/can/raw.c @@ -401,6 +401,7 @@ static int raw_getname(struct socket *sock, struct sockaddr *uaddr, if (peer) return -EOPNOTSUPP; + memset(addr, 0, sizeof(*addr)); addr->can_family = AF_CAN; addr->can_ifindex = ro->ifindex; -- cgit v0.10.2 From 9555b31e8c29d2000e1e1f569f6f242ebd596e47 Mon Sep 17 00:00:00 2001 From: Greg Ungerer Date: Thu, 6 Aug 2009 17:58:18 +0000 Subject: fec: fix FEC driver packet transmission breakage Commit f0b3fbeae11a526c3d308b691684589ee37c359b ("FEC Buffer rework") breaks transmission of packets where the skb data buffer is not memory aligned according to FEC_ALIGNMENT. It incorrectly passes to dma_sync_single() the buffer address directly from the skb, instead of the address calculated for use (which may be the skb address or one of the bounce buffers). It seems there is no use converting the cpu address of the buffer to a physical either, since dma_map_single() expects the cpu address and will return the dma address to use in the descriptor. So remove the use of __pa() on the buffer address as well. This patch is against 2.6.30-rc5. This breakage is a regression over 2.6.30, which does not have this problem. Signed-off-by: Greg Ungerer Signed-off-by: David S. Miller diff --git a/drivers/net/fec.c b/drivers/net/fec.c index d4b9807..c9fd82d 100644 --- a/drivers/net/fec.c +++ b/drivers/net/fec.c @@ -285,6 +285,7 @@ fec_enet_start_xmit(struct sk_buff *skb, struct net_device *dev) { struct fec_enet_private *fep = netdev_priv(dev); struct bufdesc *bdp; + void *bufaddr; unsigned short status; unsigned long flags; @@ -312,7 +313,7 @@ fec_enet_start_xmit(struct sk_buff *skb, struct net_device *dev) status &= ~BD_ENET_TX_STATS; /* Set buffer length and buffer pointer */ - bdp->cbd_bufaddr = __pa(skb->data); + bufaddr = skb->data; bdp->cbd_datlen = skb->len; /* @@ -320,11 +321,11 @@ fec_enet_start_xmit(struct sk_buff *skb, struct net_device *dev) * 4-byte boundaries. Use bounce buffers to copy data * and get it aligned. Ugh. */ - if (bdp->cbd_bufaddr & FEC_ALIGNMENT) { + if (((unsigned long) bufaddr) & FEC_ALIGNMENT) { unsigned int index; index = bdp - fep->tx_bd_base; memcpy(fep->tx_bounce[index], (void *)skb->data, skb->len); - bdp->cbd_bufaddr = __pa(fep->tx_bounce[index]); + bufaddr = fep->tx_bounce[index]; } /* Save skb pointer */ @@ -336,7 +337,7 @@ fec_enet_start_xmit(struct sk_buff *skb, struct net_device *dev) /* Push the data cache so the CPM does not get stale memory * data. */ - bdp->cbd_bufaddr = dma_map_single(&dev->dev, skb->data, + bdp->cbd_bufaddr = dma_map_single(&dev->dev, bufaddr, FEC_ENET_TX_FRSIZE, DMA_TO_DEVICE); /* Send it on its way. Tell FEC it's ready, interrupt when done, -- cgit v0.10.2 From 876bfd4d0f18cd1f698249870c7e7fb944de1c26 Mon Sep 17 00:00:00 2001 From: Herbert Xu Date: Thu, 6 Aug 2009 14:22:44 +0000 Subject: tun: Extend RTNL lock coverage over whole ioctl As it is, parts of the ioctl runs under the RTNL and parts of it do not. The unlocked section is still protected by the BKL, but there can be subtle races. For example, Eric Biederman and Paul Moore observed that if two threads tried to create two tun devices on the same file descriptor, then unexpected results may occur. As there isn't anything in the ioctl that is expected to sleep indefinitely, we can prevent this from occurring by extending the RTNL lock coverage. This also allows to get rid of the BKL. Finally, I changed tun_get_iff to take a tun device in order to avoid calling tun_put which would dead-lock as it also tries to take the RTNL lock. Signed-off-by: Herbert Xu Signed-off-by: David S. Miller diff --git a/drivers/net/tun.c b/drivers/net/tun.c index 027f7ab..42b6c63 100644 --- a/drivers/net/tun.c +++ b/drivers/net/tun.c @@ -1048,20 +1048,15 @@ static int tun_set_iff(struct net *net, struct file *file, struct ifreq *ifr) return err; } -static int tun_get_iff(struct net *net, struct file *file, struct ifreq *ifr) +static int tun_get_iff(struct net *net, struct tun_struct *tun, + struct ifreq *ifr) { - struct tun_struct *tun = tun_get(file); - - if (!tun) - return -EBADFD; - DBG(KERN_INFO "%s: tun_get_iff\n", tun->dev->name); strcpy(ifr->ifr_name, tun->dev->name); ifr->ifr_flags = tun_flags(tun); - tun_put(tun); return 0; } @@ -1105,8 +1100,8 @@ static int set_offload(struct net_device *dev, unsigned long arg) return 0; } -static int tun_chr_ioctl(struct inode *inode, struct file *file, - unsigned int cmd, unsigned long arg) +static long tun_chr_ioctl(struct file *file, unsigned int cmd, + unsigned long arg) { struct tun_file *tfile = file->private_data; struct tun_struct *tun; @@ -1128,34 +1123,32 @@ static int tun_chr_ioctl(struct inode *inode, struct file *file, (unsigned int __user*)argp); } + rtnl_lock(); + tun = __tun_get(tfile); if (cmd == TUNSETIFF && !tun) { - int err; - ifr.ifr_name[IFNAMSIZ-1] = '\0'; - rtnl_lock(); - err = tun_set_iff(tfile->net, file, &ifr); - rtnl_unlock(); + ret = tun_set_iff(tfile->net, file, &ifr); - if (err) - return err; + if (ret) + goto unlock; if (copy_to_user(argp, &ifr, sizeof(ifr))) - return -EFAULT; - return 0; + ret = -EFAULT; + goto unlock; } - + ret = -EBADFD; if (!tun) - return -EBADFD; + goto unlock; DBG(KERN_INFO "%s: tun_chr_ioctl cmd %d\n", tun->dev->name, cmd); ret = 0; switch (cmd) { case TUNGETIFF: - ret = tun_get_iff(current->nsproxy->net_ns, file, &ifr); + ret = tun_get_iff(current->nsproxy->net_ns, tun, &ifr); if (ret) break; @@ -1201,7 +1194,6 @@ static int tun_chr_ioctl(struct inode *inode, struct file *file, case TUNSETLINK: /* Only allow setting the type when the interface is down */ - rtnl_lock(); if (tun->dev->flags & IFF_UP) { DBG(KERN_INFO "%s: Linktype set failed because interface is up\n", tun->dev->name); @@ -1211,7 +1203,6 @@ static int tun_chr_ioctl(struct inode *inode, struct file *file, DBG(KERN_INFO "%s: linktype set to %d\n", tun->dev->name, tun->dev->type); ret = 0; } - rtnl_unlock(); break; #ifdef TUN_DEBUG @@ -1220,9 +1211,7 @@ static int tun_chr_ioctl(struct inode *inode, struct file *file, break; #endif case TUNSETOFFLOAD: - rtnl_lock(); ret = set_offload(tun->dev, arg); - rtnl_unlock(); break; case TUNSETTXFILTER: @@ -1230,9 +1219,7 @@ static int tun_chr_ioctl(struct inode *inode, struct file *file, ret = -EINVAL; if ((tun->flags & TUN_TYPE_MASK) != TUN_TAP_DEV) break; - rtnl_lock(); ret = update_filter(&tun->txflt, (void __user *)arg); - rtnl_unlock(); break; case SIOCGIFHWADDR: @@ -1248,9 +1235,7 @@ static int tun_chr_ioctl(struct inode *inode, struct file *file, DBG(KERN_DEBUG "%s: set hw address: %pM\n", tun->dev->name, ifr.ifr_hwaddr.sa_data); - rtnl_lock(); ret = dev_set_mac_address(tun->dev, &ifr.ifr_hwaddr); - rtnl_unlock(); break; case TUNGETSNDBUF: @@ -1273,7 +1258,10 @@ static int tun_chr_ioctl(struct inode *inode, struct file *file, break; }; - tun_put(tun); +unlock: + rtnl_unlock(); + if (tun) + tun_put(tun); return ret; } @@ -1361,7 +1349,7 @@ static const struct file_operations tun_fops = { .write = do_sync_write, .aio_write = tun_chr_aio_write, .poll = tun_chr_poll, - .ioctl = tun_chr_ioctl, + .unlocked_ioctl = tun_chr_ioctl, .open = tun_chr_open, .release = tun_chr_close, .fasync = tun_chr_fasync -- cgit v0.10.2 From a6616b42fbc39c1ccc2373996f1441ce7707ea93 Mon Sep 17 00:00:00 2001 From: Yi Zou Date: Thu, 6 Aug 2009 13:05:23 +0000 Subject: ixgbe: Pass rx_ring directly in ixgbe_configure_srrctl() Instead of passing the register index of the corresponding rx_ring and find the way back to get to corresponding rx_ring in ixgbe_configure_srrctl(), simplify the function ixgbe_configure_srrctl() by passing the rx_ring into it. Then the register index for that rx_ring is already available from rx_ring->reg_idx. Signed-off-by: Yi Zou Acked-by: Peter P Waskiewicz Jr Signed-off-by: Jeff Kirsher Signed-off-by: David S. Miller diff --git a/drivers/net/ixgbe/ixgbe_main.c b/drivers/net/ixgbe/ixgbe_main.c index 110c65a..e361b7f 100644 --- a/drivers/net/ixgbe/ixgbe_main.c +++ b/drivers/net/ixgbe/ixgbe_main.c @@ -1898,46 +1898,19 @@ static void ixgbe_configure_tx(struct ixgbe_adapter *adapter) #define IXGBE_SRRCTL_BSIZEHDRSIZE_SHIFT 2 -static void ixgbe_configure_srrctl(struct ixgbe_adapter *adapter, int index) +static void ixgbe_configure_srrctl(struct ixgbe_adapter *adapter, + struct ixgbe_ring *rx_ring) { - struct ixgbe_ring *rx_ring; u32 srrctl; - int queue0 = 0; - unsigned long mask; + int index; struct ixgbe_ring_feature *feature = adapter->ring_feature; - if (adapter->hw.mac.type == ixgbe_mac_82599EB) { - if (adapter->flags & IXGBE_FLAG_DCB_ENABLED) { - int dcb_i = feature[RING_F_DCB].indices; - if (dcb_i == 8) - queue0 = index >> 4; - else if (dcb_i == 4) - queue0 = index >> 5; - else - dev_err(&adapter->pdev->dev, "Invalid DCB " - "configuration\n"); -#ifdef IXGBE_FCOE - if (adapter->flags & IXGBE_FLAG_FCOE_ENABLED) { - struct ixgbe_ring_feature *f; - - rx_ring = &adapter->rx_ring[queue0]; - f = &adapter->ring_feature[RING_F_FCOE]; - if ((queue0 == 0) && (index > rx_ring->reg_idx)) - queue0 = f->mask + index - - rx_ring->reg_idx - 1; - } -#endif /* IXGBE_FCOE */ - } else { - queue0 = index; - } - } else { + index = rx_ring->reg_idx; + if (adapter->hw.mac.type == ixgbe_mac_82598EB) { + unsigned long mask; mask = (unsigned long) feature[RING_F_RSS].mask; - queue0 = index & mask; index = index & mask; } - - rx_ring = &adapter->rx_ring[queue0]; - srrctl = IXGBE_READ_REG(&adapter->hw, IXGBE_SRRCTL(index)); srrctl &= ~IXGBE_SRRCTL_BSIZEHDR_MASK; @@ -2002,6 +1975,7 @@ static void ixgbe_configure_rx(struct ixgbe_adapter *adapter) { u64 rdba; struct ixgbe_hw *hw = &adapter->hw; + struct ixgbe_ring *rx_ring; struct net_device *netdev = adapter->netdev; int max_frame = netdev->mtu + ETH_HLEN + ETH_FCS_LEN; int i, j; @@ -2070,16 +2044,17 @@ static void ixgbe_configure_rx(struct ixgbe_adapter *adapter) * the Base and Length of the Rx Descriptor Ring */ for (i = 0; i < adapter->num_rx_queues; i++) { - rdba = adapter->rx_ring[i].dma; - j = adapter->rx_ring[i].reg_idx; + rx_ring = &adapter->rx_ring[i]; + rdba = rx_ring->dma; + j = rx_ring->reg_idx; IXGBE_WRITE_REG(hw, IXGBE_RDBAL(j), (rdba & DMA_BIT_MASK(32))); IXGBE_WRITE_REG(hw, IXGBE_RDBAH(j), (rdba >> 32)); IXGBE_WRITE_REG(hw, IXGBE_RDLEN(j), rdlen); IXGBE_WRITE_REG(hw, IXGBE_RDH(j), 0); IXGBE_WRITE_REG(hw, IXGBE_RDT(j), 0); - adapter->rx_ring[i].head = IXGBE_RDH(j); - adapter->rx_ring[i].tail = IXGBE_RDT(j); - adapter->rx_ring[i].rx_buf_len = rx_buf_len; + rx_ring->head = IXGBE_RDH(j); + rx_ring->tail = IXGBE_RDT(j); + rx_ring->rx_buf_len = rx_buf_len; #ifdef IXGBE_FCOE if (adapter->flags & IXGBE_FLAG_FCOE_ENABLED) { @@ -2087,12 +2062,12 @@ static void ixgbe_configure_rx(struct ixgbe_adapter *adapter) f = &adapter->ring_feature[RING_F_FCOE]; if ((rx_buf_len < IXGBE_FCOE_JUMBO_FRAME_SIZE) && (i >= f->mask) && (i < f->mask + f->indices)) - adapter->rx_ring[i].rx_buf_len = + rx_ring->rx_buf_len = IXGBE_FCOE_JUMBO_FRAME_SIZE; } #endif /* IXGBE_FCOE */ - ixgbe_configure_srrctl(adapter, j); + ixgbe_configure_srrctl(adapter, rx_ring); } if (hw->mac.type == ixgbe_mac_82598EB) { -- cgit v0.10.2 From 6e455b897bb6be3a4c0c6578f679e83d399e5b92 Mon Sep 17 00:00:00 2001 From: Yi Zou Date: Thu, 6 Aug 2009 13:05:44 +0000 Subject: ixgbe: Disable packet split only on FCoE queues in 82599 For 82599, packet split has to be disabled for FCoE direct data placement. However, this is only required on received queues allocated for FCoE. This patch adds a per ring flags to indicate if packet split is disabled on a per queue basis, particularly for FCoE, as packet split must be disabled for large receive using direct data placement (DDP). Signed-off-by: Yi Zou Acked-by: Peter P Waskiewicz Jr Signed-off-by: Jeff Kirsher Signed-off-by: David S. Miller diff --git a/drivers/net/ixgbe/ixgbe.h b/drivers/net/ixgbe/ixgbe.h index e11d83d..2c4dc82 100644 --- a/drivers/net/ixgbe/ixgbe.h +++ b/drivers/net/ixgbe/ixgbe.h @@ -136,6 +136,8 @@ struct ixgbe_ring { u8 queue_index; /* needed for multiqueue queue management */ +#define IXGBE_RING_RX_PS_ENABLED (u8)(1) + u8 flags; /* per ring feature flags */ u16 head; u16 tail; diff --git a/drivers/net/ixgbe/ixgbe_main.c b/drivers/net/ixgbe/ixgbe_main.c index e361b7f..e3cb949 100644 --- a/drivers/net/ixgbe/ixgbe_main.c +++ b/drivers/net/ixgbe/ixgbe_main.c @@ -585,7 +585,7 @@ static void ixgbe_alloc_rx_buffers(struct ixgbe_adapter *adapter, rx_desc = IXGBE_RX_DESC_ADV(*rx_ring, i); if (!bi->page_dma && - (adapter->flags & IXGBE_FLAG_RX_PS_ENABLED)) { + (rx_ring->flags & IXGBE_RING_RX_PS_ENABLED)) { if (!bi->page) { bi->page = alloc_page(GFP_ATOMIC); if (!bi->page) { @@ -629,7 +629,7 @@ static void ixgbe_alloc_rx_buffers(struct ixgbe_adapter *adapter, } /* Refresh the desc even if buffer_addrs didn't change because * each write-back erases this info. */ - if (adapter->flags & IXGBE_FLAG_RX_PS_ENABLED) { + if (rx_ring->flags & IXGBE_RING_RX_PS_ENABLED) { rx_desc->read.pkt_addr = cpu_to_le64(bi->page_dma); rx_desc->read.hdr_addr = cpu_to_le64(bi->dma); } else { @@ -726,7 +726,7 @@ static bool ixgbe_clean_rx_irq(struct ixgbe_q_vector *q_vector, break; (*work_done)++; - if (adapter->flags & IXGBE_FLAG_RX_PS_ENABLED) { + if (rx_ring->flags & IXGBE_RING_RX_PS_ENABLED) { hdr_info = le16_to_cpu(ixgbe_get_hdr_info(rx_desc)); len = (hdr_info & IXGBE_RXDADV_HDRBUFLEN_MASK) >> IXGBE_RXDADV_HDRBUFLEN_SHIFT; @@ -798,7 +798,7 @@ static bool ixgbe_clean_rx_irq(struct ixgbe_q_vector *q_vector, rx_ring->stats.packets++; rx_ring->stats.bytes += skb->len; } else { - if (adapter->flags & IXGBE_FLAG_RX_PS_ENABLED) { + if (rx_ring->flags & IXGBE_RING_RX_PS_ENABLED) { rx_buffer_info->skb = next_buffer->skb; rx_buffer_info->dma = next_buffer->dma; next_buffer->skb = skb; @@ -1919,7 +1919,7 @@ static void ixgbe_configure_srrctl(struct ixgbe_adapter *adapter, srrctl |= (IXGBE_RX_HDR_SIZE << IXGBE_SRRCTL_BSIZEHDRSIZE_SHIFT) & IXGBE_SRRCTL_BSIZEHDR_MASK; - if (adapter->flags & IXGBE_FLAG_RX_PS_ENABLED) { + if (rx_ring->flags & IXGBE_RING_RX_PS_ENABLED) { #if (PAGE_SIZE / 2) > IXGBE_MAX_RXBUFFER srrctl |= IXGBE_MAX_RXBUFFER >> IXGBE_SRRCTL_BSIZEPKT_SHIFT; #else @@ -1992,11 +1992,6 @@ static void ixgbe_configure_rx(struct ixgbe_adapter *adapter) /* Decide whether to use packet split mode or not */ adapter->flags |= IXGBE_FLAG_RX_PS_ENABLED; -#ifdef IXGBE_FCOE - if (adapter->flags & IXGBE_FLAG_FCOE_ENABLED) - adapter->flags &= ~IXGBE_FLAG_RX_PS_ENABLED; -#endif /* IXGBE_FCOE */ - /* Set the RX buffer length according to the mode */ if (adapter->flags & IXGBE_FLAG_RX_PS_ENABLED) { rx_buf_len = IXGBE_RX_HDR_SIZE; @@ -2056,14 +2051,19 @@ static void ixgbe_configure_rx(struct ixgbe_adapter *adapter) rx_ring->tail = IXGBE_RDT(j); rx_ring->rx_buf_len = rx_buf_len; + if (adapter->flags & IXGBE_FLAG_RX_PS_ENABLED) + rx_ring->flags |= IXGBE_RING_RX_PS_ENABLED; + #ifdef IXGBE_FCOE if (adapter->flags & IXGBE_FLAG_FCOE_ENABLED) { struct ixgbe_ring_feature *f; f = &adapter->ring_feature[RING_F_FCOE]; - if ((rx_buf_len < IXGBE_FCOE_JUMBO_FRAME_SIZE) && - (i >= f->mask) && (i < f->mask + f->indices)) - rx_ring->rx_buf_len = - IXGBE_FCOE_JUMBO_FRAME_SIZE; + if ((i >= f->mask) && (i < f->mask + f->indices)) { + rx_ring->flags &= ~IXGBE_RING_RX_PS_ENABLED; + if (rx_buf_len < IXGBE_FCOE_JUMBO_FRAME_SIZE) + rx_ring->rx_buf_len = + IXGBE_FCOE_JUMBO_FRAME_SIZE; + } } #endif /* IXGBE_FCOE */ @@ -2143,7 +2143,8 @@ static void ixgbe_configure_rx(struct ixgbe_adapter *adapter) if (adapter->flags2 & IXGBE_FLAG2_RSC_ENABLED) { /* Enable 82599 HW-RSC */ for (i = 0; i < adapter->num_rx_queues; i++) { - j = adapter->rx_ring[i].reg_idx; + rx_ring = &adapter->rx_ring[i]; + j = rx_ring->reg_idx; rscctrl = IXGBE_READ_REG(hw, IXGBE_RSCCTL(j)); rscctrl |= IXGBE_RSCCTL_RSCEN; /* @@ -2151,7 +2152,7 @@ static void ixgbe_configure_rx(struct ixgbe_adapter *adapter) * total size of max desc * buf_len is not greater * than 65535 */ - if (adapter->flags & IXGBE_FLAG_RX_PS_ENABLED) { + if (rx_ring->flags & IXGBE_RING_RX_PS_ENABLED) { #if (MAX_SKB_FRAGS > 16) rscctrl |= IXGBE_RSCCTL_MAXDESC_16; #elif (MAX_SKB_FRAGS > 8) -- cgit v0.10.2 From 373a88d78be540c1331ea5adcb76610dddcb008b Mon Sep 17 00:00:00 2001 From: Bruce Allan Date: Fri, 7 Aug 2009 07:41:37 +0000 Subject: e1000e: fix acquisition of SW/FW/HW semaphore for ICHx parts For ICHx parts, write the EXTCNF_CTRL.SWFLAG bit once when trying to acquire the SW/FW/HW semaphore instead of multiple times to prevent the hardware from having problems (especially for systems with manageability enabled), and extend the timeout for the hardware to set the SWFLAG bit. Signed-off-by: Bruce Allan Signed-off-by: Jeff Kirsher Signed-off-by: David S. Miller diff --git a/drivers/net/e1000e/ich8lan.c b/drivers/net/e1000e/ich8lan.c index d56c747..dd61e7e 100644 --- a/drivers/net/e1000e/ich8lan.c +++ b/drivers/net/e1000e/ich8lan.c @@ -594,8 +594,8 @@ static DEFINE_MUTEX(nvm_mutex); **/ static s32 e1000_acquire_swflag_ich8lan(struct e1000_hw *hw) { - u32 extcnf_ctrl; - u32 timeout = PHY_CFG_TIMEOUT; + u32 extcnf_ctrl, timeout = PHY_CFG_TIMEOUT; + s32 ret_val = 0; might_sleep(); @@ -603,28 +603,46 @@ static s32 e1000_acquire_swflag_ich8lan(struct e1000_hw *hw) while (timeout) { extcnf_ctrl = er32(EXTCNF_CTRL); + if (!(extcnf_ctrl & E1000_EXTCNF_CTRL_SWFLAG)) + break; - if (!(extcnf_ctrl & E1000_EXTCNF_CTRL_SWFLAG)) { - extcnf_ctrl |= E1000_EXTCNF_CTRL_SWFLAG; - ew32(EXTCNF_CTRL, extcnf_ctrl); + mdelay(1); + timeout--; + } + + if (!timeout) { + hw_dbg(hw, "SW/FW/HW has locked the resource for too long.\n"); + ret_val = -E1000_ERR_CONFIG; + goto out; + } + + timeout = PHY_CFG_TIMEOUT * 2; + + extcnf_ctrl |= E1000_EXTCNF_CTRL_SWFLAG; + ew32(EXTCNF_CTRL, extcnf_ctrl); + + while (timeout) { + extcnf_ctrl = er32(EXTCNF_CTRL); + if (extcnf_ctrl & E1000_EXTCNF_CTRL_SWFLAG) + break; - extcnf_ctrl = er32(EXTCNF_CTRL); - if (extcnf_ctrl & E1000_EXTCNF_CTRL_SWFLAG) - break; - } mdelay(1); timeout--; } if (!timeout) { - hw_dbg(hw, "FW or HW has locked the resource for too long.\n"); + hw_dbg(hw, "Failed to acquire the semaphore.\n"); extcnf_ctrl &= ~E1000_EXTCNF_CTRL_SWFLAG; ew32(EXTCNF_CTRL, extcnf_ctrl); - mutex_unlock(&nvm_mutex); - return -E1000_ERR_CONFIG; + ret_val = -E1000_ERR_CONFIG; + goto out; } - return 0; +out: + if (ret_val) + mutex_unlock(&nvm_mutex); + + return ret_val; } /** -- cgit v0.10.2 From 148675a7b2061b5a5eb194530b7c4d8de1f2887e Mon Sep 17 00:00:00 2001 From: Bruce Allan Date: Fri, 7 Aug 2009 07:41:56 +0000 Subject: e1000e: fix potential NVM corruption on ICH9 with 8K bank size The bank offset was being incorrectly calculated on ICH9 parts with a bank size of 8K (instead of the more common 4K bank) which would cause any NVM writes to be done on the wrong address after switching from bank 1 to bank 0. Additionally, assume we are meant to use bank 0 if a valid bank is not detected, and remove the unnecessary acquisition of the SW/FW/HW semaphore when writing to the shadow ram version of the NVM image. Signed-off-by: Bruce Allan Signed-off-by: Jeff Kirsher Signed-off-by: David S. Miller diff --git a/drivers/net/e1000e/ich8lan.c b/drivers/net/e1000e/ich8lan.c index dd61e7e..99df2ab 100644 --- a/drivers/net/e1000e/ich8lan.c +++ b/drivers/net/e1000e/ich8lan.c @@ -338,10 +338,7 @@ static s32 e1000_init_nvm_params_ich8lan(struct e1000_hw *hw) { struct e1000_nvm_info *nvm = &hw->nvm; struct e1000_dev_spec_ich8lan *dev_spec = &hw->dev_spec.ich8lan; - union ich8_hws_flash_status hsfsts; - u32 gfpreg; - u32 sector_base_addr; - u32 sector_end_addr; + u32 gfpreg, sector_base_addr, sector_end_addr; u16 i; /* Can't read flash registers if the register set isn't mapped. */ @@ -375,20 +372,6 @@ static s32 e1000_init_nvm_params_ich8lan(struct e1000_hw *hw) /* Adjust to word count */ nvm->flash_bank_size /= sizeof(u16); - /* - * Make sure the flash bank size does not overwrite the 4k - * sector ranges. We may have 64k allotted to us but we only care - * about the first 2 4k sectors. Therefore, if we have anything less - * than 64k set in the HSFSTS register, we will reduce the bank size - * down to 4k and let the rest remain unused. If berasesz == 3, then - * we are working in 64k mode. Otherwise we are not. - */ - if (nvm->flash_bank_size > E1000_ICH8_SHADOW_RAM_WORDS) { - hsfsts.regval = er16flash(ICH_FLASH_HSFSTS); - if (hsfsts.hsf_status.berasesz != 3) - nvm->flash_bank_size = E1000_ICH8_SHADOW_RAM_WORDS; - } - nvm->word_size = E1000_ICH8_SHADOW_RAM_WORDS; /* Clear shadow ram */ @@ -1324,7 +1307,7 @@ static s32 e1000_read_nvm_ich8lan(struct e1000_hw *hw, u16 offset, u16 words, struct e1000_nvm_info *nvm = &hw->nvm; struct e1000_dev_spec_ich8lan *dev_spec = &hw->dev_spec.ich8lan; u32 act_offset; - s32 ret_val; + s32 ret_val = 0; u32 bank = 0; u16 i, word; @@ -1339,12 +1322,15 @@ static s32 e1000_read_nvm_ich8lan(struct e1000_hw *hw, u16 offset, u16 words, goto out; ret_val = e1000_valid_nvm_bank_detect_ich8lan(hw, &bank); - if (ret_val) - goto release; + if (ret_val) { + hw_dbg(hw, "Could not detect valid bank, assuming bank 0\n"); + bank = 0; + } act_offset = (bank) ? nvm->flash_bank_size : 0; act_offset += offset; + ret_val = 0; for (i = 0; i < words; i++) { if ((dev_spec->shadow_ram) && (dev_spec->shadow_ram[offset+i].modified)) { @@ -1359,7 +1345,6 @@ static s32 e1000_read_nvm_ich8lan(struct e1000_hw *hw, u16 offset, u16 words, } } -release: e1000_release_swflag_ich8lan(hw); out: @@ -1610,7 +1595,6 @@ static s32 e1000_write_nvm_ich8lan(struct e1000_hw *hw, u16 offset, u16 words, { struct e1000_nvm_info *nvm = &hw->nvm; struct e1000_dev_spec_ich8lan *dev_spec = &hw->dev_spec.ich8lan; - s32 ret_val; u16 i; if ((offset >= nvm->word_size) || (words > nvm->word_size - offset) || @@ -1619,17 +1603,11 @@ static s32 e1000_write_nvm_ich8lan(struct e1000_hw *hw, u16 offset, u16 words, return -E1000_ERR_NVM; } - ret_val = e1000_acquire_swflag_ich8lan(hw); - if (ret_val) - return ret_val; - for (i = 0; i < words; i++) { dev_spec->shadow_ram[offset+i].modified = 1; dev_spec->shadow_ram[offset+i].value = data[i]; } - e1000_release_swflag_ich8lan(hw); - return 0; } @@ -1670,8 +1648,8 @@ static s32 e1000_update_nvm_checksum_ich8lan(struct e1000_hw *hw) */ ret_val = e1000_valid_nvm_bank_detect_ich8lan(hw, &bank); if (ret_val) { - e1000_release_swflag_ich8lan(hw); - goto out; + hw_dbg(hw, "Could not detect valid bank, assuming bank 0\n"); + bank = 0; } if (bank == 0) { @@ -2057,12 +2035,8 @@ static s32 e1000_erase_flash_bank_ich8lan(struct e1000_hw *hw, u32 bank) iteration = 1; break; case 2: - if (hw->mac.type == e1000_ich9lan) { - sector_size = ICH_FLASH_SEG_SIZE_8K; - iteration = flash_bank_size / ICH_FLASH_SEG_SIZE_8K; - } else { - return -E1000_ERR_NVM; - } + sector_size = ICH_FLASH_SEG_SIZE_8K; + iteration = 1; break; case 3: sector_size = ICH_FLASH_SEG_SIZE_64K; @@ -2074,7 +2048,7 @@ static s32 e1000_erase_flash_bank_ich8lan(struct e1000_hw *hw, u32 bank) /* Start with the base address, then add the sector offset. */ flash_linear_addr = hw->nvm.flash_base_addr; - flash_linear_addr += (bank) ? (sector_size * iteration) : 0; + flash_linear_addr += (bank) ? flash_bank_size : 0; for (j = 0; j < iteration ; j++) { do { -- cgit v0.10.2 From 75c4885924f01aed1f887886a49dfa89960de240 Mon Sep 17 00:00:00 2001 From: Yong Zhang Date: Fri, 7 Aug 2009 16:36:52 +0000 Subject: gianfar: keep vlan related state when restart If vlan has been enabled. ifdown followed by ifup will lost hardware related state. Also remove duplicated operation in gfar_vlan_rx_register(). Signed-off-by: Yong Zhang Acked-by: Dai Haruki Signed-off-by: David S. Miller diff --git a/drivers/net/gianfar.c b/drivers/net/gianfar.c index f8ffcbf..e212f2c 100644 --- a/drivers/net/gianfar.c +++ b/drivers/net/gianfar.c @@ -936,6 +936,7 @@ int startup_gfar(struct net_device *dev) struct gfar __iomem *regs = priv->regs; int err = 0; u32 rctrl = 0; + u32 tctrl = 0; u32 attrs = 0; gfar_write(®s->imask, IMASK_INIT_CLEAR); @@ -1111,11 +1112,19 @@ int startup_gfar(struct net_device *dev) rctrl |= RCTRL_PADDING(priv->padding); } + /* keep vlan related bits if it's enabled */ + if (priv->vlgrp) { + rctrl |= RCTRL_VLEX | RCTRL_PRSDEP_INIT; + tctrl |= TCTRL_VLINS; + } + /* Init rctrl based on our settings */ gfar_write(&priv->regs->rctrl, rctrl); if (dev->features & NETIF_F_IP_CSUM) - gfar_write(&priv->regs->tctrl, TCTRL_INIT_CSUM); + tctrl |= TCTRL_INIT_CSUM; + + gfar_write(&priv->regs->tctrl, tctrl); /* Set the extraction length and index */ attrs = ATTRELI_EL(priv->rx_stash_size) | @@ -1450,7 +1459,6 @@ static void gfar_vlan_rx_register(struct net_device *dev, /* Enable VLAN tag extraction */ tempval = gfar_read(&priv->regs->rctrl); - tempval |= RCTRL_VLEX; tempval |= (RCTRL_VLEX | RCTRL_PRSDEP_INIT); gfar_write(&priv->regs->rctrl, tempval); } else { -- cgit v0.10.2 From 018d21ed80736eab21fabf45edbd74600a1f8330 Mon Sep 17 00:00:00 2001 From: Joe Perches Date: Fri, 7 Aug 2009 06:43:01 +0000 Subject: MAINTAINERS: additional NETWORKING [GENERAL] and NETWORKING DRIVERS patterns Signed-off-by: Joe Perches Signed-off-by: David S. Miller diff --git a/MAINTAINERS b/MAINTAINERS index fa76ad0..aee67a8 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -3555,6 +3555,9 @@ T: git git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6.git S: Maintained F: net/ F: include/net/ +F: include/linux/in.h +F: include/linux/net.h +F: include/linux/netdevice.h NETWORKING [IPv4/IPv6] M: "David S. Miller" @@ -3590,6 +3593,8 @@ W: http://www.linuxfoundation.org/en/Net T: git git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6.git S: Odd Fixes F: drivers/net/ +F: include/linux/if_* +F: include/linux/*device.h NETXEN (1/10) GbE SUPPORT M: Dhananjay Phadke -- cgit v0.10.2 From 418372b0ab7a3bbcc59d71e8e4d322ef18263dab Mon Sep 17 00:00:00 2001 From: Rafael Laufer Date: Fri, 7 Aug 2009 05:17:17 +0000 Subject: sctp: fix missing destroy of percpu counter variable in sctp_proc_exit() Commit 1748376b6626acf59c24e9592ac67b3fe2a0e026, net: Use a percpu_counter for sockets_allocated added percpu_counter function calls to sctp_proc_init code path, but forgot to add them to sctp_proc_exit(). This resulted in a following Ooops when performing this test # modprobe sctp # rmmod -f sctp # modprobe sctp [ 573.862512] BUG: unable to handle kernel paging request at f8214a24 [ 573.862518] IP: [] __percpu_counter_init+0x3f/0x70 [ 573.862530] *pde = 37010067 *pte = 00000000 [ 573.862534] Oops: 0002 [#1] SMP [ 573.862537] last sysfs file: /sys/module/libcrc32c/initstate [ 573.862540] Modules linked in: sctp(+) crc32c libcrc32c binfmt_misc bridge stp bnep lp snd_hda_codec_analog snd_hda_intel snd_hda_codec snd_hwdep snd_pcm_oss snd_mixer_oss arc4 joydev snd_pcm ecb pcmcia snd_seq_dummy snd_seq_oss iwlagn iwlcore snd_seq_midi snd_rawmidi snd_seq_midi_event yenta_socket rsrc_nonstatic thinkpad_acpi snd_seq snd_timer snd_seq_device mac80211 psmouse sdhci_pci sdhci nvidia(P) ppdev video snd soundcore serio_raw pcspkr iTCO_wdt iTCO_vendor_support led_class ricoh_mmc pcmcia_core intel_agp nvram agpgart usbhid parport_pc parport output snd_page_alloc cfg80211 btusb ohci1394 ieee1394 e1000e [last unloaded: sctp] [ 573.862589] [ 573.862593] Pid: 5373, comm: modprobe Tainted: P R (2.6.31-rc3 #6) 7663B15 [ 573.862596] EIP: 0060:[] EFLAGS: 00010286 CPU: 1 [ 573.862599] EIP is at __percpu_counter_init+0x3f/0x70 [ 573.862602] EAX: f8214a20 EBX: f80faa14 ECX: c48c0000 EDX: f80faa20 [ 573.862604] ESI: f80a7000 EDI: 00000000 EBP: f69d5ef0 ESP: f69d5eec [ 573.862606] DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068 [ 573.862610] Process modprobe (pid: 5373, ti=f69d4000 task=c2130c70 task.ti=f69d4000) [ 573.862612] Stack: [ 573.862613] 00000000 f69d5f18 f80a70a8 f80fa9fc 00000000 fffffffc f69d5f30 c018e2d4 [ 573.862619] <0> 00000000 f80a7000 00000000 f69d5f88 c010112b 00000000 c07029c0 fffffffb [ 573.862626] <0> 00000000 f69d5f38 c018f83f f69d5f54 c0557cad f80fa860 00000001 c07010c0 [ 573.862634] Call Trace: [ 573.862644] [] ? sctp_init+0xa8/0x7d4 [sctp] [ 573.862650] [] ? marker_update_probe_range+0x184/0x260 [ 573.862659] [] ? sctp_init+0x0/0x7d4 [sctp] [ 573.862662] [] ? do_one_initcall+0x2b/0x160 [ 573.862666] [] ? tracepoint_module_notify+0x2f/0x40 [ 573.862671] [] ? notifier_call_chain+0x2d/0x70 [ 573.862678] [] ? __blocking_notifier_call_chain+0x4d/0x60 [ 573.862682] [] ? sys_init_module+0xb1/0x1f0 [ 573.862686] [] ? sysenter_do_call+0x12/0x28 [ 573.862688] Code: 89 48 08 b8 04 00 00 00 e8 df aa ec ff ba f4 ff ff ff 85 c0 89 43 14 74 31 b8 b0 18 71 c0 e8 19 b9 24 00 a1 c4 18 71 c0 8d 53 0c <89> 50 04 89 43 0c b8 b0 18 71 c0 c7 43 10 c4 18 71 c0 89 15 c4 [ 573.862725] EIP: [] __percpu_counter_init+0x3f/0x70 SS:ESP 0068:f69d5eec [ 573.862730] CR2: 00000000f8214a24 [ 573.862734] ---[ end trace 39c4e0b55e7cf54d ]--- Signed-off-by: Rafael Laufer Signed-off-by: Vlad Yasevich Signed-off-by: David S. Miller diff --git a/net/sctp/protocol.c b/net/sctp/protocol.c index 79cbd47..a76da65 100644 --- a/net/sctp/protocol.c +++ b/net/sctp/protocol.c @@ -160,6 +160,7 @@ static void sctp_proc_exit(void) remove_proc_entry("sctp", init_net.proc_net); } #endif + percpu_counter_destroy(&sctp_sockets_allocated); } /* Private helper to extract ipv4 address and stash them in -- cgit v0.10.2 From 5e33b719c8fcccfedc1d25167826a0f93fe6c5a1 Mon Sep 17 00:00:00 2001 From: roel kluin Date: Fri, 7 Aug 2009 03:24:27 +0000 Subject: pcnet32: Read buffer overflow An `options[cards_found]' that equals `sizeof(options_mapping)' is already beyond the array. Signed-off-by: Roel Kluin Signed-off-by: David S. Miller diff --git a/drivers/net/pcnet32.c b/drivers/net/pcnet32.c index a646a44..23e1a07 100644 --- a/drivers/net/pcnet32.c +++ b/drivers/net/pcnet32.c @@ -1839,7 +1839,7 @@ pcnet32_probe1(unsigned long ioaddr, int shared, struct pci_dev *pdev) lp->chip_version = chip_version; lp->msg_enable = pcnet32_debug; if ((cards_found >= MAX_UNITS) - || (options[cards_found] > sizeof(options_mapping))) + || (options[cards_found] >= sizeof(options_mapping))) lp->options = PCNET32_PORT_ASEL; else lp->options = options_mapping[options[cards_found]]; -- cgit v0.10.2 From be12159b24c532b4b48bdec5a543336438faa132 Mon Sep 17 00:00:00 2001 From: roel kluin Date: Sun, 9 Aug 2009 04:00:25 +0000 Subject: zorro8390: Fix read buffer overflow in zorro8390_init_one() Prevent read from cards[-1] when no card was found. Signed-off-by: Roel Kluin Signed-off-by: David S. Miller diff --git a/drivers/net/zorro8390.c b/drivers/net/zorro8390.c index 37c84e3..81c753a 100644 --- a/drivers/net/zorro8390.c +++ b/drivers/net/zorro8390.c @@ -120,6 +120,9 @@ static int __devinit zorro8390_init_one(struct zorro_dev *z, for (i = ARRAY_SIZE(cards)-1; i >= 0; i--) if (z->id == cards[i].id) break; + if (i < 0) + return -ENODEV; + board = z->resource.start; ioaddr = board+cards[i].offset; dev = alloc_ei_netdev(); -- cgit v0.10.2 From 973507cb8610d4c84f090d5f1f0ca54fa0559d27 Mon Sep 17 00:00:00 2001 From: roel kluin Date: Sat, 8 Aug 2009 23:54:21 +0000 Subject: mlx4_en: Fix read buffer overflow in mlx4_en_complete_rx_desc() If the length is less or equal to frag_prefix_size in the first iteration we write skb_frags_rx[-1] and read from priv->frag_info[-1] Signed-off-by: Roel Kluin Signed-off-by: David S. Miller diff --git a/drivers/net/mlx4/en_rx.c b/drivers/net/mlx4/en_rx.c index 91bdfdf..3ac0404 100644 --- a/drivers/net/mlx4/en_rx.c +++ b/drivers/net/mlx4/en_rx.c @@ -506,8 +506,9 @@ static int mlx4_en_complete_rx_desc(struct mlx4_en_priv *priv, PCI_DMA_FROMDEVICE); } /* Adjust size of last fragment to match actual length */ - skb_frags_rx[nr - 1].size = length - - priv->frag_info[nr - 1].frag_prefix_size; + if (nr > 0) + skb_frags_rx[nr - 1].size = length - + priv->frag_info[nr - 1].frag_prefix_size; return nr; fail: -- cgit v0.10.2 From beda2c7ea2c15ed01eef00a997d2b0496c3a502d Mon Sep 17 00:00:00 2001 From: Darren Hart Date: Sun, 9 Aug 2009 15:34:39 -0700 Subject: futex: Update futex_q lock_ptr on requeue proxy lock futex_requeue() can acquire the lock on behalf of a waiter early on or during the requeue loop if it is uncontended or in the event of a lock steal or owner died. On wakeup, the waiter (in futex_wait_requeue_pi()) cleans up the pi_state owner using the lock_ptr to protect against concurrent access to the pi_state. The pi_state is hung off futex_q's on the requeue target futex hash bucket so the lock_ptr needs to be updated accordingly. The problem manifested by triggering the WARN_ON in lookup_pi_state() about the pid != pi_state->owner->pid. With this patch, the pi_state is properly guarded against concurrent access via the requeue target hb lock. The astute reviewer may notice that there is a window of time between when futex_requeue() unlocks the hb locks and when futex_wait_requeue_pi() will acquire hb2->lock. During this time the pi_state and uval are not in sync with the underlying rtmutex owner (but the uval does indicate there are waiters, so no atomic changes will occur in userspace). However, this is not a problem. Should a contending thread enter lookup_pi_state() and acquire hb2->lock before the ownership is fixed up, it will find the pi_state hung off a waiter's (possibly the pending owner's) futex_q and block on the rtmutex. Once futex_wait_requeue_pi() fixes up the owner, it will also move the pi_state from the old owner's task->pi_state_list to its own. v3: Fix plist lock name for application to mainline (rather than -rt) Compile tested against tip/v2.6.31-rc5. Signed-off-by: Darren Hart Cc: Peter Zijlstra Cc: Steven Rostedt Cc: Eric Dumazet Cc: Dinakar Guniguntala Cc: John Stultz LKML-Reference: <4A7F4EFF.6090903@us.ibm.com> Signed-off-by: Ingo Molnar diff --git a/kernel/futex.c b/kernel/futex.c index 0672ff8..8cc3ee1 100644 --- a/kernel/futex.c +++ b/kernel/futex.c @@ -1010,15 +1010,19 @@ void requeue_futex(struct futex_q *q, struct futex_hash_bucket *hb1, * requeue_pi_wake_futex() - Wake a task that acquired the lock during requeue * q: the futex_q * key: the key of the requeue target futex + * hb: the hash_bucket of the requeue target futex * * During futex_requeue, with requeue_pi=1, it is possible to acquire the * target futex if it is uncontended or via a lock steal. Set the futex_q key * to the requeue target futex so the waiter can detect the wakeup on the right * futex, but remove it from the hb and NULL the rt_waiter so it can detect - * atomic lock acquisition. Must be called with the q->lock_ptr held. + * atomic lock acquisition. Set the q->lock_ptr to the requeue target hb->lock + * to protect access to the pi_state to fixup the owner later. Must be called + * with both q->lock_ptr and hb->lock held. */ static inline -void requeue_pi_wake_futex(struct futex_q *q, union futex_key *key) +void requeue_pi_wake_futex(struct futex_q *q, union futex_key *key, + struct futex_hash_bucket *hb) { drop_futex_key_refs(&q->key); get_futex_key_refs(key); @@ -1030,6 +1034,11 @@ void requeue_pi_wake_futex(struct futex_q *q, union futex_key *key) WARN_ON(!q->rt_waiter); q->rt_waiter = NULL; + q->lock_ptr = &hb->lock; +#ifdef CONFIG_DEBUG_PI_LIST + q->list.plist.lock = &hb->lock; +#endif + wake_up_state(q->task, TASK_NORMAL); } @@ -1088,7 +1097,7 @@ static int futex_proxy_trylock_atomic(u32 __user *pifutex, ret = futex_lock_pi_atomic(pifutex, hb2, key2, ps, top_waiter->task, set_waiters); if (ret == 1) - requeue_pi_wake_futex(top_waiter, key2); + requeue_pi_wake_futex(top_waiter, key2, hb2); return ret; } @@ -1273,7 +1282,7 @@ retry_private: this->task, 1); if (ret == 1) { /* We got the lock. */ - requeue_pi_wake_futex(this, &key2); + requeue_pi_wake_futex(this, &key2, hb2); continue; } else if (ret) { /* -EDEADLK */ -- cgit v0.10.2 From 100d5eb36ba20dc0b99a17ea2b9800c567bfc3d1 Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Mon, 10 Aug 2009 11:55:51 +0200 Subject: ALSA: hda - Add missing vmaster initialization for ALC269 Without the initialization of vmaster NID, the dB information got confused for ALC269 codec. Reference: Novell bnc#527361 https://bugzilla.novell.com/show_bug.cgi?id=527361 Signed-off-by: Takashi Iwai Cc: diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c index 51c44fd..5cc927f 100644 --- a/sound/pci/hda/patch_realtek.c +++ b/sound/pci/hda/patch_realtek.c @@ -13563,6 +13563,8 @@ static int patch_alc269(struct hda_codec *codec) set_capture_mixer(spec); set_beep_amp(spec, 0x0b, 0x04, HDA_INPUT); + spec->vmaster_nid = 0x02; + codec->patch_ops = alc_patch_ops; if (board_config == ALC269_AUTO) spec->init_hook = alc269_auto_init; -- cgit v0.10.2 From cd92204924fafbd5c7241dfd12ca3176d542e0c5 Mon Sep 17 00:00:00 2001 From: Tony Lindgren Date: Mon, 10 Aug 2009 14:49:50 +0300 Subject: OMAP: Fix testing of cpu defines for mach-omap1 There's no need to keep these defines limited in the ifdef block for mach-omap2. It will just cause problems testing for the CPU revision in the common code, like the next patch does for the DMA errata. Signed-off-by: Tony Lindgren diff --git a/arch/arm/plat-omap/include/mach/cpu.h b/arch/arm/plat-omap/include/mach/cpu.h index 285eaa3..11e73d9 100644 --- a/arch/arm/plat-omap/include/mach/cpu.h +++ b/arch/arm/plat-omap/include/mach/cpu.h @@ -378,9 +378,6 @@ IS_OMAP_TYPE(3430, 0x3430) #define cpu_class_is_omap2() (cpu_is_omap24xx() || cpu_is_omap34xx() || \ cpu_is_omap44xx()) -#if defined(CONFIG_ARCH_OMAP2) || defined(CONFIG_ARCH_OMAP3) || \ - defined(CONFIG_ARCH_OMAP4) - /* Various silicon revisions for omap2 */ #define OMAP242X_CLASS 0x24200024 #define OMAP2420_REV_ES1_0 0x24200024 @@ -436,5 +433,3 @@ IS_OMAP_TYPE(3430, 0x3430) int omap_chip_is(struct omap_chip_id oci); void omap2_check_revision(void); - -#endif /* defined(CONFIG_ARCH_OMAP2) || defined(CONFIG_ARCH_OMAP3) */ -- cgit v0.10.2 From 284119c48f4a0c469b3e0237b500e536b4bc7b6f Mon Sep 17 00:00:00 2001 From: Vikram Pandita Date: Mon, 10 Aug 2009 14:49:50 +0300 Subject: OMAP2/3: DMA errata correction This errata is valid for: OMAP2420 Errata 1.85 Impacts all 2420 ES rev OMAP2430 Errata 1.10 Impacts only ES1.0 Description: DMA may hang when several channels are used in parallel OMAP3430: Not impacted, so remove the errata fix for omap3 Fixed issue reported on cpu_is_omap24xx check reported by Nishant Kamat Signed-off-by: Vikram Pandita Reviewed-by: Nishant Kamat Signed-off-by: Tony Lindgren diff --git a/arch/arm/plat-omap/dma.c b/arch/arm/plat-omap/dma.c index 7677a4a..e3ac94f 100644 --- a/arch/arm/plat-omap/dma.c +++ b/arch/arm/plat-omap/dma.c @@ -946,7 +946,9 @@ void omap_start_dma(int lch) cur_lch = next_lch; } while (next_lch != -1); - } else if (cpu_class_is_omap2()) { + } else if (cpu_is_omap242x() || + (cpu_is_omap243x() && omap_type() <= OMAP2430_REV_ES1_0)) { + /* Errata: Need to write lch even if not using chaining */ dma_write(lch, CLNK_CTRL(lch)); } -- cgit v0.10.2 From 370bc1fdefb8a30018d98aca2fdfd6b6701082e7 Mon Sep 17 00:00:00 2001 From: Janboe Ye Date: Mon, 10 Aug 2009 14:49:50 +0300 Subject: OMAP3: Fix omap3 sram virtual addres overlap vmalloc space after increasing vmalloc size commit e85c205ac1427f2405021a36f083280ff0d0a35e increase vmalloc size. vmalloc space will overlap with OMAP3 sram virtual address. Signed-off-by: Li Hong Mei Signed-off-by: Janboe Ye Reviewed-by: Paul Walmsley diff --git a/arch/arm/plat-omap/sram.c b/arch/arm/plat-omap/sram.c index 4ea7380..2890b11 100644 --- a/arch/arm/plat-omap/sram.c +++ b/arch/arm/plat-omap/sram.c @@ -44,9 +44,9 @@ #define OMAP2_SRAM_VA 0xe3000000 #define OMAP2_SRAM_PUB_VA (OMAP2_SRAM_VA + 0x800) #define OMAP3_SRAM_PA 0x40200000 -#define OMAP3_SRAM_VA 0xd7000000 +#define OMAP3_SRAM_VA 0xe3000000 #define OMAP3_SRAM_PUB_PA 0x40208000 -#define OMAP3_SRAM_PUB_VA 0xd7008000 +#define OMAP3_SRAM_PUB_VA (OMAP3_SRAM_VA + 0x8000) #define OMAP4_SRAM_PA 0x40200000 /*0x402f0000*/ #define OMAP4_SRAM_VA 0xd7000000 /*0xd70f0000*/ -- cgit v0.10.2 From 5032902c331acc71956e47abd90d090181c5ef4a Mon Sep 17 00:00:00 2001 From: Sergio Aguirre Date: Mon, 10 Aug 2009 14:49:50 +0300 Subject: OMAP3: Overo: Fix smsc911x platform device resource value Fixes a wrong setting of resource parameter list in SMSC911x platform driver data structure for Overo case. This fixes folowing warning when compiling for Overo board: warning: initialization from incompatible pointer type Introduced since commit id: commit 172ef275444efa12d834fb9d1b1acdac92db47f7 Author: Steve Sakoman Date: Mon Feb 2 06:27:49 2009 +0000 ARM: Add SMSC911X support to Overo platform (V2) Signed-off-by: Sergio Aguirre Signed-off-by: Tony Lindgren diff --git a/arch/arm/mach-omap2/board-overo.c b/arch/arm/mach-omap2/board-overo.c index dff5528..fec1bb1 100644 --- a/arch/arm/mach-omap2/board-overo.c +++ b/arch/arm/mach-omap2/board-overo.c @@ -146,7 +146,7 @@ static struct platform_device overo_smsc911x_device = { .name = "smsc911x", .id = -1, .num_resources = ARRAY_SIZE(overo_smsc911x_resources), - .resource = &overo_smsc911x_resources, + .resource = overo_smsc911x_resources, .dev = { .platform_data = &overo_smsc911x_config, }, -- cgit v0.10.2 From dfc27b34496923b5f552eb9cdf20468045114ada Mon Sep 17 00:00:00 2001 From: Roger Quadros Date: Mon, 10 Aug 2009 14:49:51 +0300 Subject: OMAP3: RX51: Define TWL4030 USB transceiver in board file Add OTG transceiver to RX51 platform data to prevent kernel NULL pointer dereference during MUSB initialisation. Signed-off-by: Roger Quadros Signed-off-by: Felipe Balbi Signed-off-by: Tony Lindgren diff --git a/arch/arm/mach-omap2/board-rx51-peripherals.c b/arch/arm/mach-omap2/board-rx51-peripherals.c index 9a0bf67..56d931a 100644 --- a/arch/arm/mach-omap2/board-rx51-peripherals.c +++ b/arch/arm/mach-omap2/board-rx51-peripherals.c @@ -278,6 +278,10 @@ static struct twl4030_gpio_platform_data rx51_gpio_data = { .setup = rx51_twlgpio_setup, }; +static struct twl4030_usb_data rx51_usb_data = { + .usb_mode = T2_USB_MODE_ULPI, +}; + static struct twl4030_platform_data rx51_twldata = { .irq_base = TWL4030_IRQ_BASE, .irq_end = TWL4030_IRQ_END, @@ -286,6 +290,7 @@ static struct twl4030_platform_data rx51_twldata = { .gpio = &rx51_gpio_data, .keypad = &rx51_kp_data, .madc = &rx51_madc_data, + .usb = &rx51_usb_data, .vaux1 = &rx51_vaux1, .vaux2 = &rx51_vaux2, -- cgit v0.10.2 From 22833044fbe2764d44ae03f58508e671652ca186 Mon Sep 17 00:00:00 2001 From: Roger Quadros Date: Mon, 10 Aug 2009 14:49:51 +0300 Subject: OMAP2/3: mmc-twl4030: Free up MMC regulators while cleaning up twl_mmc_cleanup() must free up the regulators that were allocated by twl_mmc_late_init(). This eliminates the below error when 'omap_hsmmc' module is repeatedly loaded and unloaded. "sysfs: cannot create duplicate filename '/devices/platform /mmci-omap-hs.0/microamps_requested_vmmc'" Signed-off-by: Roger Quadros Signed-off-by: Tony Lindgren diff --git a/arch/arm/mach-omap2/mmc-twl4030.c b/arch/arm/mach-omap2/mmc-twl4030.c index 1541fd4..3c04c2f 100644 --- a/arch/arm/mach-omap2/mmc-twl4030.c +++ b/arch/arm/mach-omap2/mmc-twl4030.c @@ -119,6 +119,7 @@ static int twl_mmc_late_init(struct device *dev) if (i != 0) break; ret = PTR_ERR(reg); + hsmmc[i].vcc = NULL; goto err; } hsmmc[i].vcc = reg; @@ -165,8 +166,13 @@ done: static void twl_mmc_cleanup(struct device *dev) { struct omap_mmc_platform_data *mmc = dev->platform_data; + int i; gpio_free(mmc->slots[0].switch_pin); + for(i = 0; i < ARRAY_SIZE(hsmmc); i++) { + regulator_put(hsmmc[i].vcc); + regulator_put(hsmmc[i].vcc_aux); + } } #ifdef CONFIG_PM -- cgit v0.10.2 From 4177662ec9f5e50b69ef074369fdb429dd48d97e Mon Sep 17 00:00:00 2001 From: Roger Quadros Date: Mon, 10 Aug 2009 14:49:52 +0300 Subject: OMAP3: RX51: Updated rx51_defconfig Added REGULATOR, MMC and updated default CMDLINE so RX51 now boots. Note that the regulator code should be moved from mmc-twl4030.c to omap_hsmmc.c so it can be a module. Signed-off-by: Roger Quadros Signed-off-by: Tony Lindgren diff --git a/arch/arm/configs/rx51_defconfig b/arch/arm/configs/rx51_defconfig index eb2cb31..f238df6 100644 --- a/arch/arm/configs/rx51_defconfig +++ b/arch/arm/configs/rx51_defconfig @@ -282,7 +282,7 @@ CONFIG_ALIGNMENT_TRAP=y # CONFIG_ZBOOT_ROM_TEXT=0x0 CONFIG_ZBOOT_ROM_BSS=0x0 -CONFIG_CMDLINE="init=/sbin/preinit ubi.mtd=rootfs root=ubi0:rootfs rootfstype=ubifs rootflags=bulk_read,no_chk_data_crc rw console=ttyMTD,log console=tty0" +CONFIG_CMDLINE="init=/sbin/preinit ubi.mtd=rootfs root=ubi0:rootfs rootfstype=ubifs rootflags=bulk_read,no_chk_data_crc rw console=ttyMTD,log console=tty0 console=ttyS2,115200n8" # CONFIG_XIP_KERNEL is not set # CONFIG_KEXEC is not set @@ -1354,7 +1354,7 @@ CONFIG_USB_OTG_UTILS=y # CONFIG_USB_GPIO_VBUS is not set # CONFIG_ISP1301_OMAP is not set CONFIG_TWL4030_USB=y -CONFIG_MMC=m +CONFIG_MMC=y # CONFIG_MMC_DEBUG is not set # CONFIG_MMC_UNSAFE_RESUME is not set @@ -1449,7 +1449,8 @@ CONFIG_RTC_DRV_TWL4030=m # on-CPU RTC drivers # # CONFIG_DMADEVICES is not set -# CONFIG_REGULATOR is not set +CONFIG_REGULATOR=y +CONFIG_REGULATOR_TWL4030=y # CONFIG_UIO is not set # CONFIG_STAGING is not set -- cgit v0.10.2 From 2fc391112fb6f3424435a3aa2fda887497b5f807 Mon Sep 17 00:00:00 2001 From: Peter Zijlstra Date: Mon, 10 Aug 2009 12:33:05 +0100 Subject: locking, sched: Give waitqueue spinlocks their own lockdep classes Give waitqueue spinlocks their own lockdep classes when they are initialised from init_waitqueue_head(). This means that struct wait_queue::func functions can operate other waitqueues. This is used by CacheFiles to catch the page from a backing fs being unlocked and to wake up another thread to take a copy of it. Signed-off-by: Peter Zijlstra Signed-off-by: David Howells Tested-by: Takashi Iwai Cc: linux-cachefs@redhat.com Cc: torvalds@osdl.org Cc: akpm@linux-foundation.org LKML-Reference: <20090810113305.17284.81508.stgit@warthog.procyon.org.uk> Signed-off-by: Ingo Molnar diff --git a/include/linux/wait.h b/include/linux/wait.h index 6788e1a..cf3c2f5 100644 --- a/include/linux/wait.h +++ b/include/linux/wait.h @@ -77,7 +77,14 @@ struct task_struct; #define __WAIT_BIT_KEY_INITIALIZER(word, bit) \ { .flags = word, .bit_nr = bit, } -extern void init_waitqueue_head(wait_queue_head_t *q); +extern void __init_waitqueue_head(wait_queue_head_t *q, struct lock_class_key *); + +#define init_waitqueue_head(q) \ + do { \ + static struct lock_class_key __key; \ + \ + __init_waitqueue_head((q), &__key); \ + } while (0) #ifdef CONFIG_LOCKDEP # define __WAIT_QUEUE_HEAD_INIT_ONSTACK(name) \ diff --git a/kernel/wait.c b/kernel/wait.c index ea7c3b4..c4bd3d8 100644 --- a/kernel/wait.c +++ b/kernel/wait.c @@ -10,13 +10,14 @@ #include #include -void init_waitqueue_head(wait_queue_head_t *q) +void __init_waitqueue_head(wait_queue_head_t *q, struct lock_class_key *key) { spin_lock_init(&q->lock); + lockdep_set_class(&q->lock, key); INIT_LIST_HEAD(&q->task_list); } -EXPORT_SYMBOL(init_waitqueue_head); +EXPORT_SYMBOL(__init_waitqueue_head); void add_wait_queue(wait_queue_head_t *q, wait_queue_t *wait) { -- cgit v0.10.2 From 4dc88029fd916b860ef063c40180aa604ce93494 Mon Sep 17 00:00:00 2001 From: Dinakar Guniguntala Date: Mon, 10 Aug 2009 18:31:42 +0530 Subject: futex: Fix compat_futex to be same as futex for REQUEUE_PI Need to add the REQUEUE_PI checks to the compat_sys_futex API as well to ensure 32 bit requeue's work fine on a 64 bit system. Patch is against latest tip Signed-off-by: Dinakar Guniguntala Cc: Darren Hart LKML-Reference: <20090810130142.GA23619@in.ibm.com> Signed-off-by: Ingo Molnar diff --git a/kernel/futex_compat.c b/kernel/futex_compat.c index d607a5b..2357165 100644 --- a/kernel/futex_compat.c +++ b/kernel/futex_compat.c @@ -180,7 +180,8 @@ asmlinkage long compat_sys_futex(u32 __user *uaddr, int op, u32 val, int cmd = op & FUTEX_CMD_MASK; if (utime && (cmd == FUTEX_WAIT || cmd == FUTEX_LOCK_PI || - cmd == FUTEX_WAIT_BITSET)) { + cmd == FUTEX_WAIT_BITSET || + cmd == FUTEX_WAIT_REQUEUE_PI)) { if (get_compat_timespec(&ts, utime)) return -EFAULT; if (!timespec_valid(&ts)) @@ -191,7 +192,8 @@ asmlinkage long compat_sys_futex(u32 __user *uaddr, int op, u32 val, t = ktime_add_safe(ktime_get(), t); tp = &t; } - if (cmd == FUTEX_REQUEUE || cmd == FUTEX_CMP_REQUEUE) + if (cmd == FUTEX_REQUEUE || cmd == FUTEX_CMP_REQUEUE || + cmd == FUTEX_CMP_REQUEUE_PI || cmd == FUTEX_WAKE_OP) val2 = (int) (unsigned long) utime; return do_futex(uaddr, op, val, tp, uaddr2, val2, val3); -- cgit v0.10.2 From 392741e0a4e17c82e3978b7fcbf04291294dc0a1 Mon Sep 17 00:00:00 2001 From: Darren Hart Date: Fri, 7 Aug 2009 15:20:48 -0700 Subject: futex: Fix handling of bad requeue syscall pairing If futex_requeue(requeue_pi=1) finds a futex_q that was created by a call other the futex_wait_requeue_pi(), the q.rt_waiter may be null. If so, this will result in an oops from the following call graph: futex_requeue() rt_mutex_start_proxy_lock() task_blocks_on_rt_mutex() waiter->task dereference OOPS We currently WARN_ON() if this is detected, clearly this is inadequate. If we detect a mispairing in futex_requeue(), bail out, seding -EINVAL to user-space. V2: Fix parenthesis warnings. Signed-off-by: Darren Hart Acked-by: Peter Zijlstra Cc: Steven Rostedt Cc: John Kacur Cc: Eric Dumazet Cc: Dinakar Guniguntala Cc: John Stultz LKML-Reference: <4A7CA8C0.7010809@us.ibm.com> Signed-off-by: Ingo Molnar diff --git a/kernel/futex.c b/kernel/futex.c index 8cc3ee1..e18cfbd 100644 --- a/kernel/futex.c +++ b/kernel/futex.c @@ -1256,8 +1256,15 @@ retry_private: if (!match_futex(&this->key, &key1)) continue; - WARN_ON(!requeue_pi && this->rt_waiter); - WARN_ON(requeue_pi && !this->rt_waiter); + /* + * FUTEX_WAIT_REQEUE_PI and FUTEX_CMP_REQUEUE_PI should always + * be paired with each other and no other futex ops. + */ + if ((requeue_pi && !this->rt_waiter) || + (!requeue_pi && this->rt_waiter)) { + ret = -EINVAL; + break; + } /* * Wake nr_wake waiters. For requeue_pi, if we acquired the -- cgit v0.10.2 From 3e03bbeac541856aaaf1ce1ab0250b6a490e4099 Mon Sep 17 00:00:00 2001 From: Shunichi Fuji Date: Tue, 11 Aug 2009 03:34:40 +0900 Subject: x86: Add reboot quirk for every 5 series MacBook/Pro MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Reboot does not work on my MacBook Pro 13 inch (MacBookPro5,5) too. It seems all unibody MacBook and MacBookPro require PCI reboot handling, i guess. Following model/machine ID list shows unibody MacBook/Pro have the 5 series of model number: http://www.everymac.com/systems/by_capability/macs-by-machine-model-machine-id.html Signed-off-by: Shunichi Fuji Cc: Ozan Çağlayan LKML-Reference: <30046e3b0908101134p6487ddbftd8776e4ddef204be@mail.gmail.com> Signed-off-by: Ingo Molnar diff --git a/arch/x86/kernel/reboot.c b/arch/x86/kernel/reboot.c index 9eb8976..a06e8d1 100644 --- a/arch/x86/kernel/reboot.c +++ b/arch/x86/kernel/reboot.c @@ -418,20 +418,20 @@ static int __init set_pci_reboot(const struct dmi_system_id *d) } static struct dmi_system_id __initdata pci_reboot_dmi_table[] = { - { /* Handle problems with rebooting on Apple MacBook5,2 */ + { /* Handle problems with rebooting on Apple MacBook5 */ .callback = set_pci_reboot, - .ident = "Apple MacBook", + .ident = "Apple MacBook5", .matches = { DMI_MATCH(DMI_SYS_VENDOR, "Apple Inc."), - DMI_MATCH(DMI_PRODUCT_NAME, "MacBook5,2"), + DMI_MATCH(DMI_PRODUCT_NAME, "MacBook5"), }, }, - { /* Handle problems with rebooting on Apple MacBookPro5,1 */ + { /* Handle problems with rebooting on Apple MacBookPro5 */ .callback = set_pci_reboot, - .ident = "Apple MacBookPro5,1", + .ident = "Apple MacBookPro5", .matches = { DMI_MATCH(DMI_SYS_VENDOR, "Apple Inc."), - DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro5,1"), + DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro5"), }, }, { } -- cgit v0.10.2 From b409d7a0ab46fe530efe52734984b4ed5d46c3eb Mon Sep 17 00:00:00 2001 From: Jan Kara Date: Thu, 6 Aug 2009 23:29:34 +0200 Subject: ocfs2: Fix possible deadlock when extending quota file In OCFS2, allocator locks rank above transaction start. Thus we cannot extend quota file from inside a transaction less we could deadlock. We solve the problem by starting transaction not already in ocfs2_acquire_dquot() but only in ocfs2_local_read_dquot() and ocfs2_global_read_dquot() and we allocate blocks to quota files before starting the transaction. In case we crash, quota files will just have a few blocks more but that's no problem since we just use them next time we extend the quota file. Signed-off-by: Jan Kara Signed-off-by: Joel Becker diff --git a/fs/ocfs2/journal.h b/fs/ocfs2/journal.h index 4a4d3b5..2c3222a 100644 --- a/fs/ocfs2/journal.h +++ b/fs/ocfs2/journal.h @@ -363,11 +363,6 @@ static inline int ocfs2_quota_trans_credits(struct super_block *sb) return credits; } -/* Number of credits needed for removing quota structure from file */ -int ocfs2_calc_qdel_credits(struct super_block *sb, int type); -/* Number of credits needed for initialization of new quota structure */ -int ocfs2_calc_qinit_credits(struct super_block *sb, int type); - /* group extend. inode update and last group update. */ #define OCFS2_GROUP_EXTEND_CREDITS (OCFS2_INODE_UPDATE_CREDITS + 1) diff --git a/fs/ocfs2/quota_global.c b/fs/ocfs2/quota_global.c index d604a6a..bf7742d 100644 --- a/fs/ocfs2/quota_global.c +++ b/fs/ocfs2/quota_global.c @@ -215,11 +215,7 @@ ssize_t ocfs2_quota_write(struct super_block *sb, int type, loff_t rounded_end = ocfs2_align_bytes_to_blocks(sb, off + len); - down_write(&OCFS2_I(gqinode)->ip_alloc_sem); - err = ocfs2_extend_no_holes(gqinode, rounded_end, off); - up_write(&OCFS2_I(gqinode)->ip_alloc_sem); - if (err < 0) - goto out; + /* Space is already allocated in ocfs2_global_read_dquot() */ err = ocfs2_simple_size_update(gqinode, oinfo->dqi_gqi_bh, rounded_end); @@ -405,13 +401,36 @@ int ocfs2_global_write_info(struct super_block *sb, int type) return err; } +static int ocfs2_global_qinit_alloc(struct super_block *sb, int type) +{ + struct ocfs2_mem_dqinfo *oinfo = sb_dqinfo(sb, type)->dqi_priv; + + /* + * We may need to allocate tree blocks and a leaf block but not the + * root block + */ + return oinfo->dqi_gi.dqi_qtree_depth; +} + +static int ocfs2_calc_global_qinit_credits(struct super_block *sb, int type) +{ + /* We modify all the allocated blocks, tree root, and info block */ + return (ocfs2_global_qinit_alloc(sb, type) + 2) * + OCFS2_QUOTA_BLOCK_UPDATE_CREDITS; +} + /* Read in information from global quota file and acquire a reference to it. * dquot_acquire() has already started the transaction and locked quota file */ int ocfs2_global_read_dquot(struct dquot *dquot) { int err, err2, ex = 0; - struct ocfs2_mem_dqinfo *info = - sb_dqinfo(dquot->dq_sb, dquot->dq_type)->dqi_priv; + struct super_block *sb = dquot->dq_sb; + int type = dquot->dq_type; + struct ocfs2_mem_dqinfo *info = sb_dqinfo(sb, type)->dqi_priv; + struct ocfs2_super *osb = OCFS2_SB(sb); + struct inode *gqinode = info->dqi_gqinode; + int need_alloc = ocfs2_global_qinit_alloc(sb, type); + handle_t *handle = NULL; err = ocfs2_qinfo_lock(info, 0); if (err < 0) @@ -422,14 +441,33 @@ int ocfs2_global_read_dquot(struct dquot *dquot) OCFS2_DQUOT(dquot)->dq_use_count++; OCFS2_DQUOT(dquot)->dq_origspace = dquot->dq_dqb.dqb_curspace; OCFS2_DQUOT(dquot)->dq_originodes = dquot->dq_dqb.dqb_curinodes; + ocfs2_qinfo_unlock(info, 0); + if (!dquot->dq_off) { /* No real quota entry? */ - /* Upgrade to exclusive lock for allocation */ - ocfs2_qinfo_unlock(info, 0); - err = ocfs2_qinfo_lock(info, 1); - if (err < 0) - goto out_qlock; ex = 1; + /* + * Add blocks to quota file before we start a transaction since + * locking allocators ranks above a transaction start + */ + WARN_ON(journal_current_handle()); + down_write(&OCFS2_I(gqinode)->ip_alloc_sem); + err = ocfs2_extend_no_holes(gqinode, + gqinode->i_size + (need_alloc << sb->s_blocksize_bits), + gqinode->i_size); + up_write(&OCFS2_I(gqinode)->ip_alloc_sem); + if (err < 0) + goto out; + } + + handle = ocfs2_start_trans(osb, + ocfs2_calc_global_qinit_credits(sb, type)); + if (IS_ERR(handle)) { + err = PTR_ERR(handle); + goto out; } + err = ocfs2_qinfo_lock(info, ex); + if (err < 0) + goto out_trans; err = qtree_write_dquot(&info->dqi_gi, dquot); if (ex && info_dirty(sb_dqinfo(dquot->dq_sb, dquot->dq_type))) { err2 = __ocfs2_global_write_info(dquot->dq_sb, dquot->dq_type); @@ -441,6 +479,9 @@ out_qlock: ocfs2_qinfo_unlock(info, 1); else ocfs2_qinfo_unlock(info, 0); +out_trans: + if (handle) + ocfs2_commit_trans(osb, handle); out: if (err < 0) mlog_errno(err); @@ -638,24 +679,17 @@ out: return status; } -int ocfs2_calc_qdel_credits(struct super_block *sb, int type) +static int ocfs2_calc_qdel_credits(struct super_block *sb, int type) { - struct ocfs2_mem_dqinfo *oinfo; - int features[MAXQUOTAS] = { OCFS2_FEATURE_RO_COMPAT_USRQUOTA, - OCFS2_FEATURE_RO_COMPAT_GRPQUOTA }; - - if (!OCFS2_HAS_RO_COMPAT_FEATURE(sb, features[type])) - return 0; - - oinfo = sb_dqinfo(sb, type)->dqi_priv; + struct ocfs2_mem_dqinfo *oinfo = sb_dqinfo(sb, type)->dqi_priv; /* * We modify tree, leaf block, global info, local chunk header, * global and local inode; OCFS2_QINFO_WRITE_CREDITS already * accounts for inode update */ - return oinfo->dqi_gi.dqi_qtree_depth + + return (oinfo->dqi_gi.dqi_qtree_depth + 2) * + OCFS2_QUOTA_BLOCK_UPDATE_CREDITS + OCFS2_QINFO_WRITE_CREDITS + - 2 * OCFS2_QUOTA_BLOCK_UPDATE_CREDITS + OCFS2_INODE_UPDATE_CREDITS; } @@ -688,36 +722,10 @@ out: return status; } -int ocfs2_calc_qinit_credits(struct super_block *sb, int type) -{ - struct ocfs2_mem_dqinfo *oinfo; - int features[MAXQUOTAS] = { OCFS2_FEATURE_RO_COMPAT_USRQUOTA, - OCFS2_FEATURE_RO_COMPAT_GRPQUOTA }; - struct ocfs2_dinode *lfe, *gfe; - - if (!OCFS2_HAS_RO_COMPAT_FEATURE(sb, features[type])) - return 0; - - oinfo = sb_dqinfo(sb, type)->dqi_priv; - gfe = (struct ocfs2_dinode *)oinfo->dqi_gqi_bh->b_data; - lfe = (struct ocfs2_dinode *)oinfo->dqi_lqi_bh->b_data; - /* We can extend local file + global file. In local file we - * can modify info, chunk header block and dquot block. In - * global file we can modify info, tree and leaf block */ - return ocfs2_calc_extend_credits(sb, &lfe->id2.i_list, 0) + - ocfs2_calc_extend_credits(sb, &gfe->id2.i_list, 0) + - OCFS2_LOCAL_QINFO_WRITE_CREDITS + - 2 * OCFS2_QUOTA_BLOCK_UPDATE_CREDITS + - oinfo->dqi_gi.dqi_qtree_depth + - 2 * OCFS2_QUOTA_BLOCK_UPDATE_CREDITS; -} - static int ocfs2_acquire_dquot(struct dquot *dquot) { - handle_t *handle; struct ocfs2_mem_dqinfo *oinfo = sb_dqinfo(dquot->dq_sb, dquot->dq_type)->dqi_priv; - struct ocfs2_super *osb = OCFS2_SB(dquot->dq_sb); int status = 0; mlog_entry("id=%u, type=%d", dquot->dq_id, dquot->dq_type); @@ -726,16 +734,7 @@ static int ocfs2_acquire_dquot(struct dquot *dquot) status = ocfs2_lock_global_qf(oinfo, 1); if (status < 0) goto out; - handle = ocfs2_start_trans(osb, - ocfs2_calc_qinit_credits(dquot->dq_sb, dquot->dq_type)); - if (IS_ERR(handle)) { - status = PTR_ERR(handle); - mlog_errno(status); - goto out_ilock; - } status = dquot_acquire(dquot); - ocfs2_commit_trans(osb, handle); -out_ilock: ocfs2_unlock_global_qf(oinfo, 1); out: mlog_exit(status); -- cgit v0.10.2 From 363ec5614f86110c6a6bdd72ac2147ebafd3ff5e Mon Sep 17 00:00:00 2001 From: Christian Lamparter Date: Sat, 8 Aug 2009 17:09:48 +0200 Subject: ar9170usb: fix spurious firmware related message When ar9170-2.fw was missing, the driver erroneously complained about missing the initialization values file ar9170-1.fw... Signed-off-by: Christian Lamparter Signed-off-by: John W. Linville diff --git a/drivers/net/wireless/ath/ar9170/usb.c b/drivers/net/wireless/ath/ar9170/usb.c index 754b1f8..007eb85 100644 --- a/drivers/net/wireless/ath/ar9170/usb.c +++ b/drivers/net/wireless/ath/ar9170/usb.c @@ -598,11 +598,15 @@ static int ar9170_usb_request_firmware(struct ar9170_usb *aru) err = request_firmware(&aru->init_values, "ar9170-1.fw", &aru->udev->dev); + if (err) { + dev_err(&aru->udev->dev, "file with init values not found.\n"); + return err; + } err = request_firmware(&aru->firmware, "ar9170-2.fw", &aru->udev->dev); if (err) { release_firmware(aru->init_values); - dev_err(&aru->udev->dev, "file with init values not found.\n"); + dev_err(&aru->udev->dev, "firmware file not found.\n"); return err; } -- cgit v0.10.2 From e9d126cdfa60b575f1b5b02024c4faee27dccf07 Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Sun, 9 Aug 2009 14:24:09 +0200 Subject: ar9170: fix read & write outside array bounds queue == __AR9170_NUM_TXQ would cause a bug on the next line. found by Smatch ( http://repo.or.cz/w/smatch.git ). Cc: stable@kernel.org Reported-by: Dan Carpenter Signed-off-by: Dan Carpenter Signed-off-by: Christian Lamparter Signed-off-by: John W. Linville diff --git a/drivers/net/wireless/ath/ar9170/main.c b/drivers/net/wireless/ath/ar9170/main.c index 9d38cf6..88c3d85 100644 --- a/drivers/net/wireless/ath/ar9170/main.c +++ b/drivers/net/wireless/ath/ar9170/main.c @@ -1967,13 +1967,14 @@ static int ar9170_conf_tx(struct ieee80211_hw *hw, u16 queue, int ret; mutex_lock(&ar->mutex); - if ((param) && !(queue > __AR9170_NUM_TXQ)) { + if (queue < __AR9170_NUM_TXQ) { memcpy(&ar->edcf[ar9170_qos_hwmap[queue]], param, sizeof(*param)); ret = ar9170_set_qos(ar); - } else + } else { ret = -EINVAL; + } mutex_unlock(&ar->mutex); return ret; -- cgit v0.10.2 From 651b1f125c7e3806bbd635739d009433dc07372d Mon Sep 17 00:00:00 2001 From: Magnus Damm Date: Mon, 10 Aug 2009 23:41:18 +0200 Subject: PM / Driver Core: Kill dev_pm_ops platform warning for now Commit 783ea7d4eeefe895f2731fe73ac951e94418927b (Driver Core: Rework platform suspend/resume, print warning) added a warning message printed for platform drivers that use the legacy PM callbacks rather than struct dev_pm_ops. Unfortunately, this resulted in some confusion and made some people try to convert drivers by replacing the old callbacks with struct dev_pm_ops in automatic way, which generally is not a good idea. Remove the platform device runtime dev_pm_ops warning for now, because it's annoying to users and it's not really necessary right now. [rjw: Modified the changelog to be more informative.] Signed-off-by: Magnus Damm Acked-by: Greg Kroah-Hartman Signed-off-by: Rafael J. Wysocki diff --git a/drivers/base/platform.c b/drivers/base/platform.c index 81cb01b..456594b 100644 --- a/drivers/base/platform.c +++ b/drivers/base/platform.c @@ -483,9 +483,6 @@ int platform_driver_register(struct platform_driver *drv) drv->driver.remove = platform_drv_remove; if (drv->shutdown) drv->driver.shutdown = platform_drv_shutdown; - if (drv->suspend || drv->resume) - pr_warning("Platform driver '%s' needs updating - please use " - "dev_pm_ops\n", drv->driver.name); return driver_register(&drv->driver); } -- cgit v0.10.2 From 314dabb83a547ec4da819e8cbc78fac9cec605cd Mon Sep 17 00:00:00 2001 From: James Morris Date: Mon, 10 Aug 2009 22:00:13 +1000 Subject: SELinux: fix memory leakage in /security/selinux/hooks.c Fix memory leakage in /security/selinux/hooks.c The buffer always needs to be freed here; we either error out or allocate more memory. Reported-by: iceberg Signed-off-by: James Morris Acked-by: Stephen Smalley diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c index 15c2a08..1e8cfc4 100644 --- a/security/selinux/hooks.c +++ b/security/selinux/hooks.c @@ -1285,6 +1285,8 @@ static int inode_doinit_with_dentry(struct inode *inode, struct dentry *opt_dent rc = inode->i_op->getxattr(dentry, XATTR_NAME_SELINUX, context, len); if (rc == -ERANGE) { + kfree(context); + /* Need a larger buffer. Query for the right size. */ rc = inode->i_op->getxattr(dentry, XATTR_NAME_SELINUX, NULL, 0); @@ -1292,7 +1294,6 @@ static int inode_doinit_with_dentry(struct inode *inode, struct dentry *opt_dent dput(dentry); goto out_unlock; } - kfree(context); len = rc; context = kmalloc(len+1, GFP_NOFS); if (!context) { -- cgit v0.10.2 From dd704698f56c1451fc9c5daadcd6e3a089de2c40 Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Tue, 11 Aug 2009 08:45:11 +0200 Subject: ALSA: hda - Don't override ADC definitions for ALC codecs ALC269 and ALC861-VD parsers override the ADC definitions unconditionally without checking the spec definition. This causes the problem when any inconsistent ADC is set up in the device quirk (like ALC272 with digital-mic). This patch avoids the overriding by adding the proper checks. Reference: Novell bnc#529467 https://bugzilla.novell.com/show_bug.cgi?id=529467 Signed-off-by: Takashi Iwai diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c index 5cc927f..fea9767 100644 --- a/sound/pci/hda/patch_realtek.c +++ b/sound/pci/hda/patch_realtek.c @@ -15579,9 +15579,12 @@ static int patch_alc861vd(struct hda_codec *codec) spec->stream_digital_playback = &alc861vd_pcm_digital_playback; spec->stream_digital_capture = &alc861vd_pcm_digital_capture; - spec->adc_nids = alc861vd_adc_nids; - spec->num_adc_nids = ARRAY_SIZE(alc861vd_adc_nids); - spec->capsrc_nids = alc861vd_capsrc_nids; + if (!spec->adc_nids) { + spec->adc_nids = alc861vd_adc_nids; + spec->num_adc_nids = ARRAY_SIZE(alc861vd_adc_nids); + } + if (!spec->capsrc_nids) + spec->capsrc_nids = alc861vd_capsrc_nids; set_capture_mixer(spec); set_beep_amp(spec, 0x0b, 0x05, HDA_INPUT); @@ -17498,9 +17501,12 @@ static int patch_alc662(struct hda_codec *codec) spec->stream_digital_playback = &alc662_pcm_digital_playback; spec->stream_digital_capture = &alc662_pcm_digital_capture; - spec->adc_nids = alc662_adc_nids; - spec->num_adc_nids = ARRAY_SIZE(alc662_adc_nids); - spec->capsrc_nids = alc662_capsrc_nids; + if (!spec->adc_nids) { + spec->adc_nids = alc662_adc_nids; + spec->num_adc_nids = ARRAY_SIZE(alc662_adc_nids); + } + if (!spec->capsrc_nids) + spec->capsrc_nids = alc662_capsrc_nids; if (!spec->cap_mixer) set_capture_mixer(spec); -- cgit v0.10.2 From 0d01f31439c1e4d602bf9fdc924ab66f407f5e38 Mon Sep 17 00:00:00 2001 From: Dmitry Torokhov Date: Sun, 9 Aug 2009 21:44:49 -0700 Subject: x86, mce: therm_throt - change when we print messages My Latitude d630 seems to be handling thermal events in SMI by lowering the max frequency of the CPU till it cools down but still leaks the "everything is normal" events. This spams the console and with high priority printks. Adjust therm_throt driver to only print messages about the fact that temperatire returned back to normal when leaving the throttling state. Also lower the severity of "back to normal" message from KERN_CRIT to KERN_INFO. Signed-off-by: Dmitry Torokhov Acked-by: H. Peter Anvin LKML-Reference: <20090810051513.0558F526EC9@mailhub.coreip.homeip.net> Signed-off-by: Ingo Molnar diff --git a/arch/x86/kernel/cpu/mcheck/therm_throt.c b/arch/x86/kernel/cpu/mcheck/therm_throt.c index bff8dd1..8bc64cf 100644 --- a/arch/x86/kernel/cpu/mcheck/therm_throt.c +++ b/arch/x86/kernel/cpu/mcheck/therm_throt.c @@ -36,6 +36,7 @@ static DEFINE_PER_CPU(__u64, next_check) = INITIAL_JIFFIES; static DEFINE_PER_CPU(unsigned long, thermal_throttle_count); +static DEFINE_PER_CPU(bool, thermal_throttle_active); static atomic_t therm_throt_en = ATOMIC_INIT(0); @@ -96,24 +97,27 @@ static int therm_throt_process(int curr) { unsigned int cpu = smp_processor_id(); __u64 tmp_jiffs = get_jiffies_64(); + bool was_throttled = __get_cpu_var(thermal_throttle_active); + bool is_throttled = __get_cpu_var(thermal_throttle_active) = curr; - if (curr) + if (is_throttled) __get_cpu_var(thermal_throttle_count)++; - if (time_before64(tmp_jiffs, __get_cpu_var(next_check))) + if (!(was_throttled ^ is_throttled) && + time_before64(tmp_jiffs, __get_cpu_var(next_check))) return 0; __get_cpu_var(next_check) = tmp_jiffs + CHECK_INTERVAL; /* if we just entered the thermal event */ - if (curr) { + if (is_throttled) { printk(KERN_CRIT "CPU%d: Temperature above threshold, " - "cpu clock throttled (total events = %lu)\n", cpu, - __get_cpu_var(thermal_throttle_count)); + "cpu clock throttled (total events = %lu)\n", + cpu, __get_cpu_var(thermal_throttle_count)); add_taint(TAINT_MACHINE_CHECK); - } else { - printk(KERN_CRIT "CPU%d: Temperature/speed normal\n", cpu); + } else if (was_throttled) { + printk(KERN_INFO "CPU%d: Temperature/speed normal\n", cpu); } return 1; -- cgit v0.10.2 From 3c581a7f94542341bf0da496a226b44ac63521a8 Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Tue, 11 Aug 2009 10:47:36 +0200 Subject: perf_counter, x86: Fix lapic printk message Instead of this garbled bootup on UP Pentium-M systems: [ 0.015048] Performance Counters: [ 0.016004] no Local APIC, try rebooting with lapicno PMU driver, software counters only. Print: [ 0.015050] Performance Counters: [ 0.016004] no APIC, boot with the "lapic" boot parameter to force-enable it. [ 0.017003] no PMU driver, software counters only. Cf: Frederic Weisbecker Cc: Peter Zijlstra Cc: Paul Mackerras Cc: Arnaldo Carvalho de Melo Cc: Frederic Weisbecker LKML-Reference: Signed-off-by: Ingo Molnar diff --git a/arch/x86/kernel/cpu/perf_counter.c b/arch/x86/kernel/cpu/perf_counter.c index a7aa8f9..40e233a 100644 --- a/arch/x86/kernel/cpu/perf_counter.c +++ b/arch/x86/kernel/cpu/perf_counter.c @@ -1590,7 +1590,7 @@ static int p6_pmu_init(void) } if (!cpu_has_apic) { - pr_info("no Local APIC, try rebooting with lapic"); + pr_info("no APIC, boot with the \"lapic\" boot parameter to force-enable it.\n"); return -ENODEV; } -- cgit v0.10.2 From f64ccccb8afa43abdd63fcbd230f818d6ea0883f Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Tue, 11 Aug 2009 10:26:33 +0200 Subject: perf_counter, x86: Fix generic cache events on P6-mobile CPUs Johannes Stezenbach reported that 'perf stat' does not count cache-miss and cache-references events on his Pentium-M based laptop. This is because we left them blank in p6_perfmon_event_map[], fill them in. Reported-by: Johannes Stezenbach Cc: Peter Zijlstra Cc: Mike Galbraith Cc: Paul Mackerras Cc: Arnaldo Carvalho de Melo Cc: Frederic Weisbecker LKML-Reference: Signed-off-by: Ingo Molnar diff --git a/arch/x86/kernel/cpu/perf_counter.c b/arch/x86/kernel/cpu/perf_counter.c index 40e233a..fffc126 100644 --- a/arch/x86/kernel/cpu/perf_counter.c +++ b/arch/x86/kernel/cpu/perf_counter.c @@ -72,8 +72,8 @@ static const u64 p6_perfmon_event_map[] = { [PERF_COUNT_HW_CPU_CYCLES] = 0x0079, [PERF_COUNT_HW_INSTRUCTIONS] = 0x00c0, - [PERF_COUNT_HW_CACHE_REFERENCES] = 0x0000, - [PERF_COUNT_HW_CACHE_MISSES] = 0x0000, + [PERF_COUNT_HW_CACHE_REFERENCES] = 0x0f2e, + [PERF_COUNT_HW_CACHE_MISSES] = 0x012e, [PERF_COUNT_HW_BRANCH_INSTRUCTIONS] = 0x00c4, [PERF_COUNT_HW_BRANCH_MISSES] = 0x00c5, [PERF_COUNT_HW_BUS_CYCLES] = 0x0062, -- cgit v0.10.2 From fbd8b1819e80ac5a176d085fdddc3a34d1499318 Mon Sep 17 00:00:00 2001 From: Kevin Winchester Date: Mon, 10 Aug 2009 19:56:45 -0300 Subject: x86: Clear incorrectly forced X86_FEATURE_LAHF_LM flag Due to an erratum with certain AMD Athlon 64 processors, the BIOS may need to force enable the LAHF_LM capability. Unfortunately, in at least one case, the BIOS does this even for processors that do not support the functionality. Add a specific check that will clear the feature bit for processors known not to support the LAHF/SAHF instructions. Signed-off-by: Kevin Winchester Acked-by: Borislav Petkov LKML-Reference: <4A80A5AD.2000209@gmail.com> Signed-off-by: Ingo Molnar diff --git a/arch/x86/kernel/cpu/amd.c b/arch/x86/kernel/cpu/amd.c index e2485b0..63fddcd 100644 --- a/arch/x86/kernel/cpu/amd.c +++ b/arch/x86/kernel/cpu/amd.c @@ -400,6 +400,13 @@ static void __cpuinit init_amd(struct cpuinfo_x86 *c) level = cpuid_eax(1); if((level >= 0x0f48 && level < 0x0f50) || level >= 0x0f58) set_cpu_cap(c, X86_FEATURE_REP_GOOD); + + /* + * Some BIOSes incorrectly force this feature, but only K8 + * revision D (model = 0x14) and later actually support it. + */ + if (c->x86_model < 0x14) + clear_cpu_cap(c, X86_FEATURE_LAHF_LM); } if (c->x86 == 0x10 || c->x86 == 0x11) set_cpu_cap(c, X86_FEATURE_REP_GOOD); -- cgit v0.10.2 From dee2b904a1f93c275a015b67cd693038d74b18e8 Mon Sep 17 00:00:00 2001 From: Mikael Pettersson Date: Sun, 9 Aug 2009 21:21:57 +0200 Subject: IXP4xx: Fix IO_SPACE_LIMIT for 2.6.31-rc core PCI changes MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 2.6.31-rc kernels don't boot on my ixp4xx box (ds101), because the libata driver doesn't find the PCI IDE controller any more. 2.6.30 was fine. I traced this to a PCI update (1f82de10d6b1d845155363c895c552e61b36b51a) in 2.6.30-git19. Diffing the kernel boot logs from 2.6.30-git18 and 2.6.30-git19 illustrates the breakage: > --- dmesg-2.6.30-git18 2009-08-04 01:45:22.000000000 +0200 > +++ dmesg-2.6.30-git19 2009-08-04 01:45:46.000000000 +0200 > @@ -26,6 +26,13 @@ > pci 0000:00:02.2: PME# supported from D0 D1 D2 D3hot > pci 0000:00:02.2: PME# disabled > PCI: bus0: Fast back to back transfers disabled > +pci 0000:00:01.0: BAR 0: can't allocate I/O resource [0x10000-0xffff] > +pci 0000:00:01.0: BAR 1: can't allocate I/O resource [0x10000-0xffff] > +pci 0000:00:01.0: BAR 2: can't allocate I/O resource [0x10000-0xffff] > +pci 0000:00:01.0: BAR 3: can't allocate I/O resource [0x10000-0xffff] > +pci 0000:00:01.0: BAR 4: can't allocate I/O resource [0x10000-0xffff] > +pci 0000:00:02.0: BAR 4: can't allocate I/O resource [0x10000-0xffff] > +pci 0000:00:02.1: BAR 4: can't allocate I/O resource [0x10000-0xffff] > bio: create slab at 0 > SCSI subsystem initialized > NET: Registered protocol family 2 > @@ -44,11 +51,7 @@ > console [ttyS0] enabled > serial8250.0: ttyS1 at MMIO 0xc8001000 (irq = 13) is a XScale > Driver 'sd' needs updating - please use bus_type methods > -PCI: enabling device 0000:00:01.0 (0140 -> 0141) > -scsi0 : pata_artop > -scsi1 : pata_artop > -ata1: PATA max UDMA/100 cmd 0x1050 ctl 0x1060 bmdma 0x1040 irq 28 > -ata2: PATA max UDMA/100 cmd 0x1058 ctl 0x1064 bmdma 0x1048 irq 28 > +pata_artop 0000:00:01.0: no available native port > Using configured DiskOnChip probe address 0x50000000 > DiskOnChip found at 0x50000000 > NAND device: Manufacturer ID: 0x98, Chip ID: 0x73 (Toshiba NAND 16MiB 3,3V 8-bit) The specific change in 1f82de10d6b1d845155363c895c552e61b36b51a responsible for this failure turned out to be the following: > --- a/drivers/pci/probe.c > +++ b/drivers/pci/probe.c > @@ -193,7 +193,7 @@ int __pci_read_base(struct pci_dev *dev, enum pci_bar_type type, > res->flags |= pci_calc_resource_flags(l) | IORESOURCE_SIZEALIGN; > if (type == pci_bar_io) { > l &= PCI_BASE_ADDRESS_IO_MASK; > - mask = PCI_BASE_ADDRESS_IO_MASK & 0xffff; > + mask = PCI_BASE_ADDRESS_IO_MASK & IO_SPACE_LIMIT; > } else { > l &= PCI_BASE_ADDRESS_MEM_MASK; > mask = (u32)PCI_BASE_ADDRESS_MEM_MASK; Every arch except arm's ixp4xx defines IO_SPACE_LIMIT as an all-bits-one bitmask, typically -1UL but sometimes only a 16-bit 0x0000ffff. But ixp4xx defines it as 0xffff0000, which is now causing the PCI failures. Russell King noted that ixp4xx has 64KB PCI IO space, so IO_SPACE_LIMIT should be 0x0000ffff. This patch makes that change, which fixes the PCI failures on my ixp4xx box. Signed-off-by: Mikael Pettersson Signed-off-by: Krzysztof Hałasa diff --git a/arch/arm/mach-ixp4xx/include/mach/io.h b/arch/arm/mach-ixp4xx/include/mach/io.h index ce63048..8a947d4 100644 --- a/arch/arm/mach-ixp4xx/include/mach/io.h +++ b/arch/arm/mach-ixp4xx/include/mach/io.h @@ -17,7 +17,7 @@ #include -#define IO_SPACE_LIMIT 0xffff0000 +#define IO_SPACE_LIMIT 0x0000ffff extern int (*ixp4xx_pci_read)(u32 addr, u32 cmd, u32* data); extern int ixp4xx_pci_write(u32 addr, u32 cmd, u32 data); -- cgit v0.10.2 From 51b89f7a6615eca184aa0b85db5781d931e9c8d1 Mon Sep 17 00:00:00 2001 From: Fenghua Yu <[fenghua.yu@intel.com]> Date: Tue, 11 Aug 2009 14:52:10 -0700 Subject: Bug Fix arch/ia64/kernel/pci-dma.c: fix recursive dma_supported() call in iommu_dma_supported() In commit 160c1d8e40866edfeae7d68816b7005d70acf391, dma_ops->dma_supported = iommu_dma_supported; This dma_ops->dma_supported is first called in platform_dma_init() during kernel boot. Then dma_ops->dma_supported will be called recursively in iommu_dma_supported. Kernel can not boot because kernel can not get out of iommu_dma_supported until it runs out of stack memory. Signed-off-by: Fenghua Yu diff --git a/arch/ia64/kernel/pci-dma.c b/arch/ia64/kernel/pci-dma.c index 0569596..f6b1ff0 100644 --- a/arch/ia64/kernel/pci-dma.c +++ b/arch/ia64/kernel/pci-dma.c @@ -69,11 +69,6 @@ iommu_dma_init(void) int iommu_dma_supported(struct device *dev, u64 mask) { - struct dma_map_ops *ops = platform_dma_get_ops(dev); - - if (ops->dma_supported) - return ops->dma_supported(dev, mask); - /* Copied from i386. Doesn't make much sense, because it will only work for pci_alloc_coherent. The caller just has to use GFP_DMA in this case. */ -- cgit v0.10.2 From 8d6f9af91959256244878cd801c1c969e66cd093 Mon Sep 17 00:00:00 2001 From: Johannes Weiner <[hannes@cmpxchg.org]> Date: Tue, 11 Aug 2009 14:52:10 -0700 Subject: ia64: boolean __test_and_clear_bit __test_and_clear_bit() returns a bitfield with the tested-for bit set. Make it consistent with the other bitops - of ia64 but also every other architecture - and return a boolean value. Signed-off-by: Johannes Weiner Acked-by: Fenghua Yu diff --git a/arch/ia64/include/asm/bitops.h b/arch/ia64/include/asm/bitops.h index e2ca800..57a2787 100644 --- a/arch/ia64/include/asm/bitops.h +++ b/arch/ia64/include/asm/bitops.h @@ -286,7 +286,7 @@ __test_and_clear_bit(int nr, volatile void * addr) { __u32 *p = (__u32 *) addr + (nr >> 5); __u32 m = 1 << (nr & 31); - int oldbitset = *p & m; + int oldbitset = (*p & m) != 0; *p &= ~m; return oldbitset; -- cgit v0.10.2 From cfa5f809e399c699974ba6018eefa022bbc2e16e Mon Sep 17 00:00:00 2001 From: Jaswinder Singh Rajput <[jaswinder@kernel.org]> Date: Tue, 11 Aug 2009 14:52:10 -0700 Subject: IA64: includecheck fix: ia64, ia64_ksyms.c fix the following 'make includecheck' warning: arch/ia64/kernel/ia64_ksyms.c: asm/page.h is included more than once. Signed-off-by: Jaswinder Singh Rajput Acked-by: Fenghua Yu diff --git a/arch/ia64/kernel/ia64_ksyms.c b/arch/ia64/kernel/ia64_ksyms.c index 2d31186..8ebccb5 100644 --- a/arch/ia64/kernel/ia64_ksyms.c +++ b/arch/ia64/kernel/ia64_ksyms.c @@ -21,6 +21,7 @@ EXPORT_SYMBOL(csum_ipv6_magic); #include EXPORT_SYMBOL(clear_page); +EXPORT_SYMBOL(copy_page); #ifdef CONFIG_VIRTUAL_MEM_MAP #include @@ -60,9 +61,6 @@ EXPORT_SYMBOL(__udivdi3); EXPORT_SYMBOL(__moddi3); EXPORT_SYMBOL(__umoddi3); -#include -EXPORT_SYMBOL(copy_page); - #if defined(CONFIG_MD_RAID456) || defined(CONFIG_MD_RAID456_MODULE) extern void xor_ia64_2(void); extern void xor_ia64_3(void); -- cgit v0.10.2 From b5a8879347bbe68bd24c8870503bf6a0362da26b Mon Sep 17 00:00:00 2001 From: Jaswinder Singh Rajput <[jaswinder@kernel.org]> Date: Tue, 11 Aug 2009 14:52:11 -0700 Subject: IA64: includecheck fix: ia64, pgtable.h fix the following 'make includecheck' warning: arch/ia64/include/asm/pgtable.h: asm/processor.h is included more than once. Signed-off-by: Jaswinder Singh Rajput Acked-by: Fenghua Yu diff --git a/arch/ia64/include/asm/pgtable.h b/arch/ia64/include/asm/pgtable.h index 0a9cc73..8840a69 100644 --- a/arch/ia64/include/asm/pgtable.h +++ b/arch/ia64/include/asm/pgtable.h @@ -155,7 +155,6 @@ #include #include #include -#include /* * Next come the mappings that determine how mmap() protection bits -- cgit v0.10.2 From bf2a4c7270b9a22243a91ab5efcc47aaf997c66b Mon Sep 17 00:00:00 2001 From: Fenghua Yu <[fenghua.yu@intel.com]> Date: Tue, 11 Aug 2009 14:52:11 -0700 Subject: arch/ia64/Makefile: Remove -mtune=merced in IA64 kernel build Between GCC version 3.4.0 and 4.3.3 (including 3.4.0 and 4.3.3), -mtune=merced is implemented in GCC. Starting from 4.4.0, -mtune=merced is deprecated. Even implemented in versions between 3.4.0 and 4.3.3, the -mtune=merced feature has been broken in some of the versions. For example, GCC 4.1.2 reports interanl tuning function errors during kernel building with -mtune=merced. Or GCC Bugzilla 16130 reports another -mtune=merced issue on GCC 3.4.1. So I would remove the -mtune=merced from IA64 kernel build. Without this option, kernel on Merced will remain the same except losing an unstable and out-of-date performance tunning feature. Since GCC version 3.4.0, -mtune=mckinley has been implemented. The -mtune=mckinley option functions the same as mtune=itanium2. And mtune=itanium2 is the default option. So we don't need to add mtune=mckinley either since its been the default option in any GCC version which implements this option. Signed-off-by: Fenghua Yu diff --git a/arch/ia64/Makefile b/arch/ia64/Makefile index 58a7e46a..e7cbaa0 100644 --- a/arch/ia64/Makefile +++ b/arch/ia64/Makefile @@ -41,11 +41,6 @@ $(error Sorry, you need a newer version of the assember, one that is built from ftp://ftp.hpl.hp.com/pub/linux-ia64/gas-030124.tar.gz) endif -ifeq ($(call cc-version),0304) - cflags-$(CONFIG_ITANIUM) += -mtune=merced - cflags-$(CONFIG_MCKINLEY) += -mtune=mckinley -endif - KBUILD_CFLAGS += $(cflags-y) head-y := arch/ia64/kernel/head.o arch/ia64/kernel/init_task.o -- cgit v0.10.2 From 5359dffd4396f281c5b77de1acbee6fb1b333b23 Mon Sep 17 00:00:00 2001 From: Fenghua Yu Date: Tue, 11 Aug 2009 14:52:11 -0700 Subject: ia64/topology.c: exit cache_add_dev when kobject_init_and_add fails Make cache_add_dev exit sysfs when kobject_init_and_add returns an error. Signed-off-by: Xiaotian Feng Signed-off-by: Fenghua Yu diff --git a/arch/ia64/kernel/topology.c b/arch/ia64/kernel/topology.c index bc80dff..8f06035 100644 --- a/arch/ia64/kernel/topology.c +++ b/arch/ia64/kernel/topology.c @@ -372,6 +372,10 @@ static int __cpuinit cache_add_dev(struct sys_device * sys_dev) retval = kobject_init_and_add(&all_cpu_cache_info[cpu].kobj, &cache_ktype_percpu_entry, &sys_dev->kobj, "%s", "cache"); + if (unlikely(retval < 0)) { + cpu_cache_sysfs_exit(cpu); + return retval; + } for (i = 0; i < all_cpu_cache_info[cpu].num_cache_leaves; i++) { this_object = LEAF_KOBJECT_PTR(cpu,i); @@ -385,7 +389,7 @@ static int __cpuinit cache_add_dev(struct sys_device * sys_dev) } kobject_put(&all_cpu_cache_info[cpu].kobj); cpu_cache_sysfs_exit(cpu); - break; + return retval; } kobject_uevent(&(this_object->kobj), KOBJ_ADD); } -- cgit v0.10.2 From e7369e01eb85550ed60dd1b0e120b69dfb03dc23 Mon Sep 17 00:00:00 2001 From: Roel Kluin <[roel.kluin@gmail.com]> Date: Tue, 11 Aug 2009 14:52:11 -0700 Subject: arch/ia64/kernel/iosapic: missing test after ioremap() Missing test after ioremap() Signed-off-by: Roel Kluin Acked-by: Fenghua Yu diff --git a/arch/ia64/kernel/iosapic.c b/arch/ia64/kernel/iosapic.c index c48b03f..dab4d39 100644 --- a/arch/ia64/kernel/iosapic.c +++ b/arch/ia64/kernel/iosapic.c @@ -1072,6 +1072,10 @@ iosapic_init (unsigned long phys_addr, unsigned int gsi_base) } addr = ioremap(phys_addr, 0); + if (addr == NULL) { + spin_unlock_irqrestore(&iosapic_lock, flags); + return -ENOMEM; + } ver = iosapic_version(addr); if ((err = iosapic_check_gsi_range(gsi_base, ver))) { iounmap(addr); -- cgit v0.10.2 From 0cc6eee130b0c062feec8446d9cecdb17d2cfad3 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Sat, 18 Jul 2009 18:14:53 -0400 Subject: xfs: avoid memory allocation under m_peraglock in growfs code Allocate the memory for the larger m_perag array before taking the per-AG lock as the per-AG lock can be taken under the i_lock which can be taken from reclaim context. Reported by the new reclaim context tracing in lockdep. Signed-off-by: Christoph Hellwig Reviewed-by: Felix Blyakher Signed-off-by: Felix Blyakher diff --git a/fs/xfs/xfs_fsops.c b/fs/xfs/xfs_fsops.c index cbd451b..2d0b3e1 100644 --- a/fs/xfs/xfs_fsops.c +++ b/fs/xfs/xfs_fsops.c @@ -167,17 +167,25 @@ xfs_growfs_data_private( new = nb - mp->m_sb.sb_dblocks; oagcount = mp->m_sb.sb_agcount; if (nagcount > oagcount) { + void *new_perag, *old_perag; + xfs_filestream_flush(mp); + + new_perag = kmem_zalloc(sizeof(xfs_perag_t) * nagcount, + KM_MAYFAIL); + if (!new_perag) + return XFS_ERROR(ENOMEM); + down_write(&mp->m_peraglock); - mp->m_perag = kmem_realloc(mp->m_perag, - sizeof(xfs_perag_t) * nagcount, - sizeof(xfs_perag_t) * oagcount, - KM_SLEEP); - memset(&mp->m_perag[oagcount], 0, - (nagcount - oagcount) * sizeof(xfs_perag_t)); + memcpy(new_perag, mp->m_perag, sizeof(xfs_perag_t) * oagcount); + old_perag = mp->m_perag; + mp->m_perag = new_perag; + mp->m_flags |= XFS_MOUNT_32BITINODES; nagimax = xfs_initialize_perag(mp, nagcount); up_write(&mp->m_peraglock); + + kmem_free(old_perag); } tp = xfs_trans_alloc(mp, XFS_TRANS_GROWFS); tp->t_flags |= XFS_TRANS_RESERVE; -- cgit v0.10.2 From ca35dcd6cae7d4a780c484c53f45548c4719f82c Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Sat, 18 Jul 2009 18:14:54 -0400 Subject: xfs: switch to NOFS allocation under i_lock in xfs_getbmap xfs_getbmap allocates memory with i_lock held, but i_lock is taken in reclaim context so all allocations under it must avoid recursions into the filesystem. Reported by the new reclaim context tracing in lockdep. Signed-off-by: Christoph Hellwig Reviewed-by: Felix Blyakher Signed-off-by: Felix Blyakher diff --git a/fs/xfs/xfs_bmap.c b/fs/xfs/xfs_bmap.c index 7928b99..8ee5b5a 100644 --- a/fs/xfs/xfs_bmap.c +++ b/fs/xfs/xfs_bmap.c @@ -6009,7 +6009,7 @@ xfs_getbmap( */ error = ENOMEM; subnex = 16; - map = kmem_alloc(subnex * sizeof(*map), KM_MAYFAIL); + map = kmem_alloc(subnex * sizeof(*map), KM_MAYFAIL | KM_NOFS); if (!map) goto out_unlock_ilock; -- cgit v0.10.2 From f41d7fb9da05b604f8a69fb6cac2a0563c8ede4e Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Sat, 18 Jul 2009 18:14:55 -0400 Subject: xfs: switch to NOFS allocation under i_lock in xfs_da_state_alloc xfs_da_state_alloc is always called with i_lock held, but i_lock is taken in reclaim context so all allocations under it must avoid recursions into the filesystem. Reported by the new reclaim context tracing in lockdep. Signed-off-by: Christoph Hellwig Reviewed-by: Felix Blyakher Signed-off-by: Felix Blyakher diff --git a/fs/xfs/xfs_da_btree.c b/fs/xfs/xfs_da_btree.c index 9ff6e57..bd0bb6d 100644 --- a/fs/xfs/xfs_da_btree.c +++ b/fs/xfs/xfs_da_btree.c @@ -2201,7 +2201,7 @@ kmem_zone_t *xfs_dabuf_zone; /* dabuf zone */ xfs_da_state_t * xfs_da_state_alloc(void) { - return kmem_zone_zalloc(xfs_da_state_zone, KM_SLEEP); + return kmem_zone_zalloc(xfs_da_state_zone, KM_NOFS); } /* -- cgit v0.10.2 From 73195ed7864ae4a1fb0bea2ed9df59d19b4fde90 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Sat, 18 Jul 2009 18:14:56 -0400 Subject: xfs: switch to NOFS allocation under i_lock in xfs_da_buf_make i_lock is taken in the reclaim context so all allocations under it must avoid recursions into the filesystem. Reported by the new reclaim context tracing in lockdep. Signed-off-by: Christoph Hellwig Reviewed-by: Felix Blyakher Signed-off-by: Felix Blyakher diff --git a/fs/xfs/xfs_da_btree.c b/fs/xfs/xfs_da_btree.c index bd0bb6d..2847bbc 100644 --- a/fs/xfs/xfs_da_btree.c +++ b/fs/xfs/xfs_da_btree.c @@ -2261,9 +2261,9 @@ xfs_da_buf_make(int nbuf, xfs_buf_t **bps, inst_t *ra) int off; if (nbuf == 1) - dabuf = kmem_zone_alloc(xfs_dabuf_zone, KM_SLEEP); + dabuf = kmem_zone_alloc(xfs_dabuf_zone, KM_NOFS); else - dabuf = kmem_alloc(XFS_DA_BUF_SIZE(nbuf), KM_SLEEP); + dabuf = kmem_alloc(XFS_DA_BUF_SIZE(nbuf), KM_NOFS); dabuf->dirty = 0; #ifdef XFS_DABUF_DEBUG dabuf->ra = ra; -- cgit v0.10.2 From 3f52c2f0a07c23771909cc53f2e9451a7f1bf253 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Sat, 18 Jul 2009 18:14:57 -0400 Subject: xfs: switch to NOFS allocation under i_lock in xfs_dir_cilookup_result xfs_dir_cilookup_result is always called with i_lock held, but i_lock is taken in reclaim context so all allocations under it must avoid recursions into the filesystem. Reported by the new reclaim context tracing in lockdep. Signed-off-by: Christoph Hellwig Reviewed-by: Felix Blyakher Signed-off-by: Felix Blyakher diff --git a/fs/xfs/xfs_dir2.c b/fs/xfs/xfs_dir2.c index c657bec..bb1d58e 100644 --- a/fs/xfs/xfs_dir2.c +++ b/fs/xfs/xfs_dir2.c @@ -256,7 +256,7 @@ xfs_dir_cilookup_result( !(args->op_flags & XFS_DA_OP_CILOOKUP)) return EEXIST; - args->value = kmem_alloc(len, KM_MAYFAIL); + args->value = kmem_alloc(len, KM_NOFS | KM_MAYFAIL); if (!args->value) return ENOMEM; -- cgit v0.10.2 From 36fae17a648e0aee5d9560514d08477ef48dc87f Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Sat, 18 Jul 2009 18:14:58 -0400 Subject: xfs: switch to NOFS allocation under i_lock in xfs_buf_associate_memory xfs_buf_associate_memory is used for setting up the spare buffer for the log wrap case in xlog_sync which can happen under i_lock when called from xfs_fsync. The i_lock mutex is taken in reclaim context so all allocations under it must avoid recursions into the filesystem. There are a couple more uses of xfs_buf_associate_memory in the log recovery code that are also affected by this, but I'd rather keep the code simple than passing on a gfp_mask argument. Longer term we should just stop requiring the memoery allocation in xlog_sync by some smaller rework of the buffer layer. Reported by the new reclaim context tracing in lockdep. Signed-off-by: Christoph Hellwig Reviewed-by: Felix Blyakher Signed-off-by: Felix Blyakher diff --git a/fs/xfs/linux-2.6/xfs_buf.c b/fs/xfs/linux-2.6/xfs_buf.c index 1418b91..178c20c 100644 --- a/fs/xfs/linux-2.6/xfs_buf.c +++ b/fs/xfs/linux-2.6/xfs_buf.c @@ -770,7 +770,7 @@ xfs_buf_associate_memory( bp->b_pages = NULL; bp->b_addr = mem; - rval = _xfs_buf_get_pages(bp, page_count, 0); + rval = _xfs_buf_get_pages(bp, page_count, XBF_DONT_BLOCK); if (rval) return rval; -- cgit v0.10.2 From 10746e47e722b5688fcd6eba9fbf9b2e64a248a7 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Sat, 18 Jul 2009 18:14:59 -0400 Subject: xfs: switch to NOFS allocation under i_lock in xfs_attr_rmtval_set xfs_attr_rmtval_set is always called with i_lock held, and i_lock is taken in reclaim context so all allocations under it must avoid recursions into the filesystem. Reported by the new reclaim context tracing in lockdep. Signed-off-by: Christoph Hellwig Reviewed-by: Felix Blyakher Signed-off-by: Felix Blyakher diff --git a/fs/xfs/xfs_attr.c b/fs/xfs/xfs_attr.c index db15feb..bfb5837 100644 --- a/fs/xfs/xfs_attr.c +++ b/fs/xfs/xfs_attr.c @@ -2141,8 +2141,8 @@ xfs_attr_rmtval_set(xfs_da_args_t *args) dblkno = XFS_FSB_TO_DADDR(mp, map.br_startblock), blkcnt = XFS_FSB_TO_BB(mp, map.br_blockcount); - bp = xfs_buf_get_flags(mp->m_ddev_targp, dblkno, - blkcnt, XFS_BUF_LOCK); + bp = xfs_buf_get_flags(mp->m_ddev_targp, dblkno, blkcnt, + XFS_BUF_LOCK | XBF_DONT_BLOCK); ASSERT(bp); ASSERT(!XFS_BUF_GETERROR(bp)); -- cgit v0.10.2 From 7b02ecb3031b192823bc732ae717febc0a59aa92 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Sat, 18 Jul 2009 18:15:00 -0400 Subject: xfs: switch to NOFS allocation under i_lock in xfs_readlink_bmap xfs_readlink_bmap is called with i_lock held, but i_lock is taken in reclaim context so all allocations under it must avoid recursions into the filesystem. Reported by the new reclaim context tracing in lockdep. Signed-off-by: Christoph Hellwig Reviewed-by: Felix Blyakher Signed-off-by: Felix Blyakher diff --git a/fs/xfs/xfs_vnodeops.c b/fs/xfs/xfs_vnodeops.c index c4eca5e..492d75b 100644 --- a/fs/xfs/xfs_vnodeops.c +++ b/fs/xfs/xfs_vnodeops.c @@ -538,7 +538,9 @@ xfs_readlink_bmap( d = XFS_FSB_TO_DADDR(mp, mval[n].br_startblock); byte_cnt = XFS_FSB_TO_B(mp, mval[n].br_blockcount); - bp = xfs_buf_read(mp->m_ddev_targp, d, BTOBB(byte_cnt), 0); + bp = xfs_buf_read_flags(mp->m_ddev_targp, d, BTOBB(byte_cnt), + XBF_LOCK | XBF_MAPPED | + XBF_DONT_BLOCK); error = XFS_BUF_GETERROR(bp); if (error) { xfs_ioerror_alert("xfs_readlink", -- cgit v0.10.2 From ddd3a14e0f030f0f7b900621f67532285b8657ef Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Sat, 18 Jul 2009 18:15:01 -0400 Subject: xfs: switch to NOFS allocation under i_lock in xfs_attr_rmtval_get xfs_attr_rmtval_get is always called with i_lock held, but i_lock is taken in reclaim context so all allocations under it must avoid recursions into the filesystem. Reported by the new reclaim context tracing in lockdep. Signed-off-by: Christoph Hellwig Reviewed-by: Felix Blyakher Signed-off-by: Felix Blyakher diff --git a/fs/xfs/xfs_attr.c b/fs/xfs/xfs_attr.c index bfb5837..4ece190 100644 --- a/fs/xfs/xfs_attr.c +++ b/fs/xfs/xfs_attr.c @@ -2010,7 +2010,9 @@ xfs_attr_rmtval_get(xfs_da_args_t *args) dblkno = XFS_FSB_TO_DADDR(mp, map[i].br_startblock); blkcnt = XFS_FSB_TO_BB(mp, map[i].br_blockcount); error = xfs_read_buf(mp, mp->m_ddev_targp, dblkno, - blkcnt, XFS_BUF_LOCK, &bp); + blkcnt, + XFS_BUF_LOCK | XBF_DONT_BLOCK, + &bp); if (error) return(error); -- cgit v0.10.2 From e0c222c411e22f086e929cd69fdcc89336164ec1 Mon Sep 17 00:00:00 2001 From: Eric Sandeen Date: Mon, 20 Jul 2009 10:52:15 -0500 Subject: use XFS_CORRUPTION_ERROR in xfs_btree_check_sblock In Red Hat Bug 512552 - Can't write to XFS mount during raid5 resync a user ran into corruption while resyncing a raid, and we failed a consistency test, but didn't get much more info; it'd be nice to call XFS_CORRUPTION_ERROR here so we can see the buffer contents. Signed-off-by: Eric Sandeen Reviewed-by: Christoph Hellwig Signed-off-by: Felix Blyakher diff --git a/fs/xfs/xfs_btree.c b/fs/xfs/xfs_btree.c index e9df995..2671738 100644 --- a/fs/xfs/xfs_btree.c +++ b/fs/xfs/xfs_btree.c @@ -120,8 +120,8 @@ xfs_btree_check_sblock( XFS_RANDOM_BTREE_CHECK_SBLOCK))) { if (bp) xfs_buftrace("SBTREE ERROR", bp); - XFS_ERROR_REPORT("xfs_btree_check_sblock", XFS_ERRLEVEL_LOW, - cur->bc_mp); + XFS_CORRUPTION_ERROR("xfs_btree_check_sblock", + XFS_ERRLEVEL_LOW, cur->bc_mp, block); return XFS_ERROR(EFSCORRUPTED); } return 0; -- cgit v0.10.2 From b89d4208de3de442c9025919c4261be0b38e79a4 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Mon, 10 Aug 2009 11:32:18 -0300 Subject: xfs: check for dinode realtime flag corruption Ramon tested XFS with a modified version of fsfuzzer and hit a NULL pointer dereference in __xfs_get_blocks due to the RT device target pointer being NULL. To fix this reject inode with the realtime bit set on a a filesystem without an RT subvolume during inode read. Signed-off-by: Christoph Hellwig Reviewed-by: Eric Sandeen Reviewed-by: Felix Blyakher Reported-by: Ramon de Carvalho Valle Tested-by: Ramon de Carvalho Valle Signed-off-by: Felix Blyakher diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c index 1f22d65..da428b3 100644 --- a/fs/xfs/xfs_inode.c +++ b/fs/xfs/xfs_inode.c @@ -343,6 +343,16 @@ xfs_iformat( return XFS_ERROR(EFSCORRUPTED); } + if (unlikely((ip->i_d.di_flags & XFS_DIFLAG_REALTIME) && + !ip->i_mount->m_rtdev_targp)) { + xfs_fs_repair_cmn_err(CE_WARN, ip->i_mount, + "corrupt dinode %Lu, has realtime flag set.", + ip->i_ino); + XFS_CORRUPTION_ERROR("xfs_iformat(realtime)", + XFS_ERRLEVEL_LOW, ip->i_mount, dip); + return XFS_ERROR(EFSCORRUPTED); + } + switch (ip->i_d.di_mode & S_IFMT) { case S_IFIFO: case S_IFCHR: -- cgit v0.10.2 From a8914f3a6d72c97328597a556a99daaf5cc288ae Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Mon, 10 Aug 2009 11:32:44 -0300 Subject: xfs: fix spin_is_locked assert on uni-processor builds Without SMP or preemption spin_is_locked always returns false, so we can't do an assert with it. Instead use assert_spin_locked, which does the right thing on all builds. Signed-off-by: Christoph Hellwig Reviewed-by: Eric Sandeen Reported-by: Johannes Engel Tested-by: Johannes Engel Signed-off-by: Felix Blyakher diff --git a/fs/xfs/xfs_log.c b/fs/xfs/xfs_log.c index 3750f04..9dbdff3 100644 --- a/fs/xfs/xfs_log.c +++ b/fs/xfs/xfs_log.c @@ -3180,7 +3180,7 @@ try_again: STATIC void xlog_state_want_sync(xlog_t *log, xlog_in_core_t *iclog) { - ASSERT(spin_is_locked(&log->l_icloglock)); + assert_spin_locked(&log->l_icloglock); if (iclog->ic_state == XLOG_STATE_ACTIVE) { xlog_state_switch_iclogs(log, iclog, 0); -- cgit v0.10.2 From ec8b4b7085605e801a7740a2c3c33256aebe249c Mon Sep 17 00:00:00 2001 From: Stephen Kitt Date: Wed, 12 Aug 2009 01:12:08 -0700 Subject: Input: joydev - decouple axis and button map ioctls from input constants The KEY_MAX change in 2.6.28 changed the values of the JSIOCSBTNMAP and JSIOCGBTNMAP constants; software compiled with the old values no longer works with kernels following 2.6.28, because the ioctl switch statement no longer matches the values given by the software. This patch handles these ioctls independently of the length of data specified, and applies the same treatment to JSIOCSAXMAP and JSIOCGAXMAP which currently depend on ABS_MAX. Signed-off-by: Stephen Kitt Signed-off-by: Dmitry Torokhov diff --git a/drivers/input/joydev.c b/drivers/input/joydev.c index 4cfd084f..9a1d55b 100644 --- a/drivers/input/joydev.c +++ b/drivers/input/joydev.c @@ -456,8 +456,11 @@ static int joydev_ioctl_common(struct joydev *joydev, unsigned int cmd, void __user *argp) { struct input_dev *dev = joydev->handle.dev; + size_t len; int i, j; + const char *name; + /* Process fixed-sized commands. */ switch (cmd) { case JS_SET_CAL: @@ -499,9 +502,22 @@ static int joydev_ioctl_common(struct joydev *joydev, return copy_to_user(argp, joydev->corr, sizeof(joydev->corr[0]) * joydev->nabs) ? -EFAULT : 0; - case JSIOCSAXMAP: - if (copy_from_user(joydev->abspam, argp, - sizeof(__u8) * (ABS_MAX + 1))) + } + + /* + * Process variable-sized commands (the axis and button map commands + * are considered variable-sized to decouple them from the values of + * ABS_MAX and KEY_MAX). + */ + switch (cmd & ~IOCSIZE_MASK) { + + case (JSIOCSAXMAP & ~IOCSIZE_MASK): + len = min_t(size_t, _IOC_SIZE(cmd), sizeof(joydev->abspam)); + /* + * FIXME: we should not copy into our axis map before + * validating the data. + */ + if (copy_from_user(joydev->abspam, argp, len)) return -EFAULT; for (i = 0; i < joydev->nabs; i++) { @@ -511,13 +527,17 @@ static int joydev_ioctl_common(struct joydev *joydev, } return 0; - case JSIOCGAXMAP: - return copy_to_user(argp, joydev->abspam, - sizeof(__u8) * (ABS_MAX + 1)) ? -EFAULT : 0; - - case JSIOCSBTNMAP: - if (copy_from_user(joydev->keypam, argp, - sizeof(__u16) * (KEY_MAX - BTN_MISC + 1))) + case (JSIOCGAXMAP & ~IOCSIZE_MASK): + len = min_t(size_t, _IOC_SIZE(cmd), sizeof(joydev->abspam)); + return copy_to_user(argp, joydev->abspam, len) ? -EFAULT : 0; + + case (JSIOCSBTNMAP & ~IOCSIZE_MASK): + len = min_t(size_t, _IOC_SIZE(cmd), sizeof(joydev->keypam)); + /* + * FIXME: we should not copy into our keymap before + * validating the data. + */ + if (copy_from_user(joydev->keypam, argp, len)) return -EFAULT; for (i = 0; i < joydev->nkey; i++) { @@ -529,25 +549,19 @@ static int joydev_ioctl_common(struct joydev *joydev, return 0; - case JSIOCGBTNMAP: - return copy_to_user(argp, joydev->keypam, - sizeof(__u16) * (KEY_MAX - BTN_MISC + 1)) ? -EFAULT : 0; + case (JSIOCGBTNMAP & ~IOCSIZE_MASK): + len = min_t(size_t, _IOC_SIZE(cmd), sizeof(joydev->keypam)); + return copy_to_user(argp, joydev->keypam, len) ? -EFAULT : 0; - default: - if ((cmd & ~IOCSIZE_MASK) == JSIOCGNAME(0)) { - int len; - const char *name = dev->name; - - if (!name) - return 0; - len = strlen(name) + 1; - if (len > _IOC_SIZE(cmd)) - len = _IOC_SIZE(cmd); - if (copy_to_user(argp, name, len)) - return -EFAULT; - return len; - } + case JSIOCGNAME(0): + name = dev->name; + if (!name) + return 0; + + len = min_t(size_t, _IOC_SIZE(cmd), strlen(name) + 1); + return copy_to_user(argp, name, len) ? -EFAULT : len; } + return -EINVAL; } -- cgit v0.10.2 From e8055139d996e85722984968472868d6dccb1490 Mon Sep 17 00:00:00 2001 From: Ondrej Zary Date: Tue, 11 Aug 2009 20:00:11 +0200 Subject: x86: Fix oops in identify_cpu() on CPUs without CPUID Kernel is broken for x86 CPUs without CPUID since 2.6.28. It crashes with NULL pointer dereference in identify_cpu(): 766 generic_identify(c); 767 768--> if (this_cpu->c_identify) 769 this_cpu->c_identify(c); this_cpu is NULL. This is because it's only initialized in get_cpu_vendor() function, which is not called if the CPU has no CPUID instruction. Signed-off-by: Ondrej Zary LKML-Reference: <200908112000.15993.linux@rainbow-software.org> Signed-off-by: Ingo Molnar diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c index f1961c0..5ce60a8 100644 --- a/arch/x86/kernel/cpu/common.c +++ b/arch/x86/kernel/cpu/common.c @@ -59,7 +59,30 @@ void __init setup_cpu_local_masks(void) alloc_bootmem_cpumask_var(&cpu_sibling_setup_mask); } -static const struct cpu_dev *this_cpu __cpuinitdata; +static void __cpuinit default_init(struct cpuinfo_x86 *c) +{ +#ifdef CONFIG_X86_64 + display_cacheinfo(c); +#else + /* Not much we can do here... */ + /* Check if at least it has cpuid */ + if (c->cpuid_level == -1) { + /* No cpuid. It must be an ancient CPU */ + if (c->x86 == 4) + strcpy(c->x86_model_id, "486"); + else if (c->x86 == 3) + strcpy(c->x86_model_id, "386"); + } +#endif +} + +static const struct cpu_dev __cpuinitconst default_cpu = { + .c_init = default_init, + .c_vendor = "Unknown", + .c_x86_vendor = X86_VENDOR_UNKNOWN, +}; + +static const struct cpu_dev *this_cpu __cpuinitdata = &default_cpu; DEFINE_PER_CPU_PAGE_ALIGNED(struct gdt_page, gdt_page) = { .gdt = { #ifdef CONFIG_X86_64 @@ -332,29 +355,6 @@ void switch_to_new_gdt(int cpu) static const struct cpu_dev *__cpuinitdata cpu_devs[X86_VENDOR_NUM] = {}; -static void __cpuinit default_init(struct cpuinfo_x86 *c) -{ -#ifdef CONFIG_X86_64 - display_cacheinfo(c); -#else - /* Not much we can do here... */ - /* Check if at least it has cpuid */ - if (c->cpuid_level == -1) { - /* No cpuid. It must be an ancient CPU */ - if (c->x86 == 4) - strcpy(c->x86_model_id, "486"); - else if (c->x86 == 3) - strcpy(c->x86_model_id, "386"); - } -#endif -} - -static const struct cpu_dev __cpuinitconst default_cpu = { - .c_init = default_init, - .c_vendor = "Unknown", - .c_x86_vendor = X86_VENDOR_UNKNOWN, -}; - static void __cpuinit get_model_name(struct cpuinfo_x86 *c) { unsigned int *v; -- cgit v0.10.2 From df9eba8c9febf53782ef896518e7177999d98188 Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Fri, 7 Aug 2009 11:15:20 +0900 Subject: pata_at91: fix resource release Julias Lawall discovered that pata_at91 wasn't freeing a memory region allocated with kzalloc() on init failure paths. Upon review, pata_at91 also seems to be doing unnecessary explicit resource releases for managed resources too. Convert memory allocation to managed one and drop unnecessary explicit resource releases. Signed-off-by: Tejun Heo Cc: Julia Lawall Cc: Sergey Matyukevich Signed-off-by: Jeff Garzik diff --git a/drivers/ata/pata_at91.c b/drivers/ata/pata_at91.c index 5702aff..41c94b1 100644 --- a/drivers/ata/pata_at91.c +++ b/drivers/ata/pata_at91.c @@ -250,7 +250,7 @@ static int __devinit pata_at91_probe(struct platform_device *pdev) ata_port_desc(ap, "no IRQ, using PIO polling"); } - info = kzalloc(sizeof(*info), GFP_KERNEL); + info = devm_kzalloc(dev, sizeof(*info), GFP_KERNEL); if (!info) { dev_err(dev, "failed to allocate memory for private data\n"); @@ -275,7 +275,7 @@ static int __devinit pata_at91_probe(struct platform_device *pdev) if (!info->ide_addr) { dev_err(dev, "failed to map IO base\n"); ret = -ENOMEM; - goto err_ide_ioremap; + goto err_put; } info->alt_addr = devm_ioremap(dev, @@ -284,7 +284,7 @@ static int __devinit pata_at91_probe(struct platform_device *pdev) if (!info->alt_addr) { dev_err(dev, "failed to map CTL base\n"); ret = -ENOMEM; - goto err_alt_ioremap; + goto err_put; } ap->ioaddr.cmd_addr = info->ide_addr; @@ -303,13 +303,8 @@ static int __devinit pata_at91_probe(struct platform_device *pdev) irq ? ata_sff_interrupt : NULL, irq_flags, &pata_at91_sht); -err_alt_ioremap: - devm_iounmap(dev, info->ide_addr); - -err_ide_ioremap: +err_put: clk_put(info->mck); - kfree(info); - return ret; } @@ -317,7 +312,6 @@ static int __devexit pata_at91_remove(struct platform_device *pdev) { struct ata_host *host = dev_get_drvdata(&pdev->dev); struct at91_ide_info *info; - struct device *dev = &pdev->dev; if (!host) return 0; @@ -328,11 +322,8 @@ static int __devexit pata_at91_remove(struct platform_device *pdev) if (!info) return 0; - devm_iounmap(dev, info->ide_addr); - devm_iounmap(dev, info->alt_addr); clk_put(info->mck); - kfree(info); return 0; } -- cgit v0.10.2 From 1fd4bbec8c0d6db96b02141f324066afa2e77e89 Mon Sep 17 00:00:00 2001 From: Bartlomiej Zolnierkiewicz Date: Thu, 6 Aug 2009 17:47:05 +0200 Subject: pata_atiixp: fix second channel support PIO and MWDMA timings are never programmed for the second channel because timing registers are treated as 16-bit long ones. The bug is an attixp -> pata_atiixp regression and goes back to: commit 669a5db411d85a14f86cd92bc16bf7ab5b8aa235 Author: Jeff Garzik Date: Tue Aug 29 18:12:40 2006 -0400 [libata] Add a bunch of PATA drivers. Cc: Krystian Juskowiak Cc: Andrew Morton Cc: Borislav Petkov Cc: Robert Hancock Signed-off-by: Bartlomiej Zolnierkiewicz Signed-off-by: Jeff Garzik diff --git a/drivers/ata/pata_atiixp.c b/drivers/ata/pata_atiixp.c index bec0b8a..4591556 100644 --- a/drivers/ata/pata_atiixp.c +++ b/drivers/ata/pata_atiixp.c @@ -1,6 +1,7 @@ /* * pata_atiixp.c - ATI PATA for new ATA layer * (C) 2005 Red Hat Inc + * (C) 2009 Bartlomiej Zolnierkiewicz * * Based on * @@ -61,20 +62,19 @@ static void atiixp_set_pio_timing(struct ata_port *ap, struct ata_device *adev, struct pci_dev *pdev = to_pci_dev(ap->host->dev); int dn = 2 * ap->port_no + adev->devno; - - /* Check this is correct - the order is odd in both drivers */ int timing_shift = (16 * ap->port_no) + 8 * (adev->devno ^ 1); - u16 pio_mode_data, pio_timing_data; + u32 pio_timing_data; + u16 pio_mode_data; pci_read_config_word(pdev, ATIIXP_IDE_PIO_MODE, &pio_mode_data); pio_mode_data &= ~(0x7 << (4 * dn)); pio_mode_data |= pio << (4 * dn); pci_write_config_word(pdev, ATIIXP_IDE_PIO_MODE, pio_mode_data); - pci_read_config_word(pdev, ATIIXP_IDE_PIO_TIMING, &pio_timing_data); + pci_read_config_dword(pdev, ATIIXP_IDE_PIO_TIMING, &pio_timing_data); pio_timing_data &= ~(0xFF << timing_shift); pio_timing_data |= (pio_timings[pio] << timing_shift); - pci_write_config_word(pdev, ATIIXP_IDE_PIO_TIMING, pio_timing_data); + pci_write_config_dword(pdev, ATIIXP_IDE_PIO_TIMING, pio_timing_data); } /** @@ -119,16 +119,17 @@ static void atiixp_set_dmamode(struct ata_port *ap, struct ata_device *adev) udma_mode_data |= dma << (4 * dn); pci_write_config_word(pdev, ATIIXP_IDE_UDMA_MODE, udma_mode_data); } else { - u16 mwdma_timing_data; - /* Check this is correct - the order is odd in both drivers */ int timing_shift = (16 * ap->port_no) + 8 * (adev->devno ^ 1); + u32 mwdma_timing_data; dma -= XFER_MW_DMA_0; - pci_read_config_word(pdev, ATIIXP_IDE_MWDMA_TIMING, &mwdma_timing_data); + pci_read_config_dword(pdev, ATIIXP_IDE_MWDMA_TIMING, + &mwdma_timing_data); mwdma_timing_data &= ~(0xFF << timing_shift); mwdma_timing_data |= (mwdma_timings[dma] << timing_shift); - pci_write_config_word(pdev, ATIIXP_IDE_MWDMA_TIMING, mwdma_timing_data); + pci_write_config_dword(pdev, ATIIXP_IDE_MWDMA_TIMING, + mwdma_timing_data); } /* * We must now look at the PIO mode situation. We may need to -- cgit v0.10.2 From 7831387bda72af3059be48d39846d3eb6d8ce2f6 Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Fri, 7 Aug 2009 01:59:15 +0900 Subject: libata: OCZ Vertex can't do HPA OCZ Vertex SSD can't do HPA and not in a usual way. It reports HPA, allows unlocking but then fails all IOs which fall in the unlocked area. Quirk it so that HPA unlocking is not used for the device. Reported by Daniel Perup in bnc#522414. https://bugzilla.novell.com/show_bug.cgi?id=522414 Signed-off-by: Tejun Heo Reported-by: Daniel Perup Signed-off-by: Jeff Garzik diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c index 8ac98ff..072ba5e 100644 --- a/drivers/ata/libata-core.c +++ b/drivers/ata/libata-core.c @@ -4302,6 +4302,9 @@ static const struct ata_blacklist_entry ata_device_blacklist [] = { { "WDC WD2500JD-00HBB0", "WD-WMAL71490727", ATA_HORKAGE_BROKEN_HPA }, { "MAXTOR 6L080L4", "A93.0500", ATA_HORKAGE_BROKEN_HPA }, + /* this one allows HPA unlocking but fails IOs on the area */ + { "OCZ-VERTEX", "1.30", ATA_HORKAGE_BROKEN_HPA }, + /* Devices which report 1 sector over size HPA */ { "ST340823A", NULL, ATA_HORKAGE_HPA_SIZE, }, { "ST320413A", NULL, ATA_HORKAGE_HPA_SIZE, }, -- cgit v0.10.2 From 51c8949950647afeeb897e08dd75ad99078adb50 Mon Sep 17 00:00:00 2001 From: Tony Vroon Date: Thu, 6 Aug 2009 00:50:09 +0100 Subject: sata_nv: MSI support, disabled by default At least the nVidia MCP55 controller quite happily supports MSI. This adds an option to use it. It is disabled by default. As per feedback by Robert Hancock, it will honour the user request as the kernel will not enable MSI where the controller or the specific system configuration do not support it. Signed-off-by: Tony Vroon Cc: Robert Hancock Signed-off-by: Jeff Garzik diff --git a/drivers/ata/sata_nv.c b/drivers/ata/sata_nv.c index b2d11f3..86a4058 100644 --- a/drivers/ata/sata_nv.c +++ b/drivers/ata/sata_nv.c @@ -602,6 +602,7 @@ MODULE_VERSION(DRV_VERSION); static int adma_enabled; static int swncq_enabled = 1; +static int msi_enabled; static void nv_adma_register_mode(struct ata_port *ap) { @@ -2459,6 +2460,11 @@ static int nv_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) } else if (type == SWNCQ) nv_swncq_host_init(host); + if (msi_enabled) { + dev_printk(KERN_NOTICE, &pdev->dev, "Using MSI\n"); + pci_enable_msi(pdev); + } + pci_set_master(pdev); return ata_host_activate(host, pdev->irq, ipriv->irq_handler, IRQF_SHARED, ipriv->sht); @@ -2558,4 +2564,6 @@ module_param_named(adma, adma_enabled, bool, 0444); MODULE_PARM_DESC(adma, "Enable use of ADMA (Default: false)"); module_param_named(swncq, swncq_enabled, bool, 0444); MODULE_PARM_DESC(swncq, "Enable use of SWNCQ (Default: true)"); +module_param_named(msi, msi_enabled, bool, 0444); +MODULE_PARM_DESC(msi, "Enable use of MSI (Default: false)"); -- cgit v0.10.2 From 20308871588518b5e209c403de2a3ad9a2eba9af Mon Sep 17 00:00:00 2001 From: Michael Prokop Date: Thu, 6 Aug 2009 00:14:10 +0200 Subject: Documentation/kernel-parameters.txt: document libata's ignore_hpa option By default the kernel honors the HPA (host protected area) of hard drives. Using libata's ignore_hpa module option it's possible to change this behaviour. Document usage and options of libata.ignore_hpa in Documentation/kernel-parameters.txt. Signed-off-by: Michael Prokop Signed-off-by: Jeff Garzik diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt index dd1a6d4..7936b80 100644 --- a/Documentation/kernel-parameters.txt +++ b/Documentation/kernel-parameters.txt @@ -1115,6 +1115,10 @@ and is between 256 and 4096 characters. It is defined in the file libata.dma=4 Compact Flash DMA only Combinations also work, so libata.dma=3 enables DMA for disks and CDROMs, but not CFs. + + libata.ignore_hpa= [LIBATA] Ignore HPA limit + libata.ignore_hpa=0 keep BIOS limits (default) + libata.ignore_hpa=1 ignore limits, using full disk libata.noacpi [LIBATA] Disables use of ACPI in libata suspend/resume when set. -- cgit v0.10.2 From b6931c1fbaf7fda9ea7f120228a96600d7090049 Mon Sep 17 00:00:00 2001 From: Shane Huang Date: Wed, 5 Aug 2009 10:10:41 +0800 Subject: ahci: Soften up the dmesg on SB600 PMP softreset failure recovery Too strong words led to spurious bug reports: Novell bugzilla #527748, RedHat bugzilla #468800. This patch is used to soften up the dmesg on SB600 PMP softreset failure recovery, so as to remove the scariness and concern from community. Reported-by: pgnet Dev Signed-off-by: Shane Huang Cc: Tejun Heo Signed-off-by: Jeff Garzik diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c index 958c1fa..838ff73 100644 --- a/drivers/ata/ahci.c +++ b/drivers/ata/ahci.c @@ -1773,7 +1773,8 @@ static int ahci_sb600_softreset(struct ata_link *link, unsigned int *class, irq_sts = readl(port_mmio + PORT_IRQ_STAT); if (irq_sts & PORT_IRQ_BAD_PMP) { ata_link_printk(link, KERN_WARNING, - "failed due to HW bug, retry pmp=0\n"); + "applying SB600 PMP SRST workaround " + "and retrying\n"); rc = ahci_do_softreset(link, class, 0, deadline, ahci_check_ready); } -- cgit v0.10.2 From 5594639aab8b5614cb27a3e5b2b627505cbcd137 Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Tue, 4 Aug 2009 14:30:08 +0900 Subject: ahci: add workaround for on-board 5723s on some gigabyte boards Some gigabytes have on-board SIMG5723s connected to JMB ahcis. These are used to implement hardware raid. Unfortunately some firmware revisions on these 5723s don't bring the link down when all the downstream ports are unoccupied while not responding to reset protocol which makes libata think that there's device attached to the port but is not responding and retry. This results in painfully wrong boot detection time for these ports when they're empty. This patch quirks those boards such that ahci gives up after the initial timeout. Combined with parallel probing, this gives quick enough probing and also is safe because SIMG5723 will respond to the first try if any of the downstream ports is occupied. Signed-off-by: Tejun Heo Reported-by: Marc Bowes Reported-by: Nicolas Mailhot Signed-off-by: Jeff Garzik diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c index 838ff73..fe3eba5 100644 --- a/drivers/ata/ahci.c +++ b/drivers/ata/ahci.c @@ -219,6 +219,8 @@ enum { AHCI_HFLAG_SECT255 = (1 << 8), /* max 255 sectors */ AHCI_HFLAG_YES_NCQ = (1 << 9), /* force NCQ cap on */ AHCI_HFLAG_NO_SUSPEND = (1 << 10), /* don't suspend */ + AHCI_HFLAG_SRST_TOUT_IS_OFFLINE = (1 << 11), /* treat SRST timeout as + link offline */ /* ap->flags bits */ @@ -1663,6 +1665,7 @@ static int ahci_do_softreset(struct ata_link *link, unsigned int *class, int (*check_ready)(struct ata_link *link)) { struct ata_port *ap = link->ap; + struct ahci_host_priv *hpriv = ap->host->private_data; const char *reason = NULL; unsigned long now, msecs; struct ata_taskfile tf; @@ -1701,12 +1704,21 @@ static int ahci_do_softreset(struct ata_link *link, unsigned int *class, /* wait for link to become ready */ rc = ata_wait_after_reset(link, deadline, check_ready); - /* link occupied, -ENODEV too is an error */ - if (rc) { + if (rc == -EBUSY && hpriv->flags & AHCI_HFLAG_SRST_TOUT_IS_OFFLINE) { + /* + * Workaround for cases where link online status can't + * be trusted. Treat device readiness timeout as link + * offline. + */ + ata_link_printk(link, KERN_INFO, + "device not ready, treating as offline\n"); + *class = ATA_DEV_NONE; + } else if (rc) { + /* link occupied, -ENODEV too is an error */ reason = "device not ready"; goto fail; - } - *class = ahci_dev_classify(ap); + } else + *class = ahci_dev_classify(ap); DPRINTK("EXIT, class=%u\n", *class); return 0; @@ -2727,6 +2739,56 @@ static bool ahci_broken_suspend(struct pci_dev *pdev) return !ver || strcmp(ver, dmi->driver_data) < 0; } +static bool ahci_broken_online(struct pci_dev *pdev) +{ +#define ENCODE_BUSDEVFN(bus, slot, func) \ + (void *)(unsigned long)(((bus) << 8) | PCI_DEVFN((slot), (func))) + static const struct dmi_system_id sysids[] = { + /* + * There are several gigabyte boards which use + * SIMG5723s configured as hardware RAID. Certain + * 5723 firmware revisions shipped there keep the link + * online but fail to answer properly to SRST or + * IDENTIFY when no device is attached downstream + * causing libata to retry quite a few times leading + * to excessive detection delay. + * + * As these firmwares respond to the second reset try + * with invalid device signature, considering unknown + * sig as offline works around the problem acceptably. + */ + { + .ident = "EP45-DQ6", + .matches = { + DMI_MATCH(DMI_BOARD_VENDOR, + "Gigabyte Technology Co., Ltd."), + DMI_MATCH(DMI_BOARD_NAME, "EP45-DQ6"), + }, + .driver_data = ENCODE_BUSDEVFN(0x0a, 0x00, 0), + }, + { + .ident = "EP45-DS5", + .matches = { + DMI_MATCH(DMI_BOARD_VENDOR, + "Gigabyte Technology Co., Ltd."), + DMI_MATCH(DMI_BOARD_NAME, "EP45-DS5"), + }, + .driver_data = ENCODE_BUSDEVFN(0x03, 0x00, 0), + }, + { } /* terminate list */ + }; +#undef ENCODE_BUSDEVFN + const struct dmi_system_id *dmi = dmi_first_match(sysids); + unsigned int val; + + if (!dmi) + return false; + + val = (unsigned long)dmi->driver_data; + + return pdev->bus->number == (val >> 8) && pdev->devfn == (val & 0xff); +} + static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) { static int printed_version; @@ -2842,6 +2904,12 @@ static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) "BIOS update required for suspend/resume\n"); } + if (ahci_broken_online(pdev)) { + hpriv->flags |= AHCI_HFLAG_SRST_TOUT_IS_OFFLINE; + dev_info(&pdev->dev, + "online status unreliable, applying workaround\n"); + } + /* CAP.NP sometimes indicate the index of the last enabled * port, at other times, that of the last possible port, so * determining the maximum port number requires looking at -- cgit v0.10.2 From 67fe0688082509c52bd451d10a61b3565169c23e Mon Sep 17 00:00:00 2001 From: Jeff Garzik Date: Wed, 12 Aug 2009 06:29:57 -0400 Subject: Remove zero-length file drivers/mtd/maps/sbc8240.c It was "deleted" in commit 2bf961b7ccd69e108ac435c67e2b0522b403c578 Signed-off-by: Jeff Garzik diff --git a/drivers/mtd/maps/sbc8240.c b/drivers/mtd/maps/sbc8240.c deleted file mode 100644 index e69de29..0000000 -- cgit v0.10.2 From 2a8083f063472f27c253545dd64e1a7bbbb1ab61 Mon Sep 17 00:00:00 2001 From: Arnaldo Carvalho de Melo Date: Tue, 11 Aug 2009 16:22:00 -0300 Subject: perf record: Fix .tid and .pid fill-in when synthesizing events MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Noticed when trying to record events for a firefox thread. We were synthesizing both .tid and .pid with the pid passed via --pid. Fix it by reading /proc/PID/status and getting the tgid to use in .pid, .tid gets the specified "pid". Signed-off-by: Arnaldo Carvalho de Melo Cc: "H. Peter Anvin" Cc: Frédéric Weisbecker Cc: Peter Zijlstra Cc: Mike Galbraith LKML-Reference: <20090811192200.GF18061@ghostprotocols.net> Signed-off-by: Ingo Molnar diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c index 0345aad..30b83de 100644 --- a/tools/perf/builtin-record.c +++ b/tools/perf/builtin-record.c @@ -203,46 +203,48 @@ static void sig_atexit(void) kill(getpid(), signr); } -static void pid_synthesize_comm_event(pid_t pid, int full) +static pid_t pid_synthesize_comm_event(pid_t pid, int full) { struct comm_event comm_ev; char filename[PATH_MAX]; char bf[BUFSIZ]; - int fd; - size_t size; - char *field, *sep; + FILE *fp; + size_t size = 0; DIR *tasks; struct dirent dirent, *next; + pid_t tgid = 0; - snprintf(filename, sizeof(filename), "/proc/%d/stat", pid); + snprintf(filename, sizeof(filename), "/proc/%d/status", pid); - fd = open(filename, O_RDONLY); - if (fd < 0) { + fp = fopen(filename, "r"); + if (fd == NULL) { /* * We raced with a task exiting - just return: */ if (verbose) fprintf(stderr, "couldn't open %s\n", filename); - return; + return 0; } - if (read(fd, bf, sizeof(bf)) < 0) { - fprintf(stderr, "couldn't read %s\n", filename); - exit(EXIT_FAILURE); - } - close(fd); - /* 9027 (cat) R 6747 9027 6747 34816 9027 ... */ memset(&comm_ev, 0, sizeof(comm_ev)); - field = strchr(bf, '('); - if (field == NULL) - goto out_failure; - sep = strchr(++field, ')'); - if (sep == NULL) - goto out_failure; - size = sep - field; - memcpy(comm_ev.comm, field, size++); - - comm_ev.pid = pid; + while (!comm_ev.comm[0] || !comm_ev.pid) { + if (fgets(bf, sizeof(bf), fp) == NULL) + goto out_failure; + + if (memcmp(bf, "Name:", 5) == 0) { + char *name = bf + 5; + while (*name && isspace(*name)) + ++name; + size = strlen(name) - 1; + memcpy(comm_ev.comm, name, size++); + } else if (memcmp(bf, "Tgid:", 5) == 0) { + char *tgids = bf + 5; + while (*tgids && isspace(*tgids)) + ++tgids; + tgid = comm_ev.pid = atoi(tgids); + } + } + comm_ev.header.type = PERF_EVENT_COMM; size = ALIGN(size, sizeof(u64)); comm_ev.header.size = sizeof(comm_ev) - (sizeof(comm_ev.comm) - size); @@ -251,7 +253,7 @@ static void pid_synthesize_comm_event(pid_t pid, int full) comm_ev.tid = pid; write_output(&comm_ev, comm_ev.header.size); - return; + goto out_fclose; } snprintf(filename, sizeof(filename), "/proc/%d/task", pid); @@ -268,7 +270,10 @@ static void pid_synthesize_comm_event(pid_t pid, int full) write_output(&comm_ev, comm_ev.header.size); } closedir(tasks); - return; + +out_fclose: + fclose(fp); + return tgid; out_failure: fprintf(stderr, "couldn't get COMM and pgid, malformed %s\n", @@ -276,7 +281,7 @@ out_failure: exit(EXIT_FAILURE); } -static void pid_synthesize_mmap_samples(pid_t pid) +static void pid_synthesize_mmap_samples(pid_t pid, pid_t tgid) { char filename[PATH_MAX]; FILE *fp; @@ -328,7 +333,7 @@ static void pid_synthesize_mmap_samples(pid_t pid) mmap_ev.len -= mmap_ev.start; mmap_ev.header.size = (sizeof(mmap_ev) - (sizeof(mmap_ev.filename) - size)); - mmap_ev.pid = pid; + mmap_ev.pid = tgid; mmap_ev.tid = pid; write_output(&mmap_ev, mmap_ev.header.size); @@ -347,14 +352,14 @@ static void synthesize_all(void) while (!readdir_r(proc, &dirent, &next) && next) { char *end; - pid_t pid; + pid_t pid, tgid; pid = strtol(dirent.d_name, &end, 10); if (*end) /* only interested in proper numerical dirents */ continue; - pid_synthesize_comm_event(pid, 1); - pid_synthesize_mmap_samples(pid); + tgid = pid_synthesize_comm_event(pid, 1); + pid_synthesize_mmap_samples(pid, tgid); } closedir(proc); @@ -567,8 +572,8 @@ static int __cmd_record(int argc, const char **argv) perf_header__write(header, output); if (!system_wide) { - pid_synthesize_comm_event(pid, 0); - pid_synthesize_mmap_samples(pid); + pid_t tgid = pid_synthesize_comm_event(pid, 0); + pid_synthesize_mmap_samples(pid, tgid); } else synthesize_all(); -- cgit v0.10.2 From 94a24752fe95ca1e7f98b197052d44e6a207740d Mon Sep 17 00:00:00 2001 From: Arnaldo Carvalho de Melo Date: Tue, 11 Aug 2009 16:21:38 -0300 Subject: perf report: Show the tid too in -D MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This made it easier to find the firefox threading related bug. Signed-off-by: Arnaldo Carvalho de Melo Cc: "H. Peter Anvin" Cc: Peter Zijlstra Cc: Mike Galbraith Cc: Frédéric Weisbecker LKML-Reference: <20090811192138.GE18061@ghostprotocols.net> Signed-off-by: Ingo Molnar diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c index 99274ce..23e1457 100644 --- a/tools/perf/builtin-report.c +++ b/tools/perf/builtin-report.c @@ -1526,11 +1526,11 @@ process_sample_event(event_t *event, unsigned long offset, unsigned long head) more_data += sizeof(u64); } - dprintf("%p [%p]: PERF_EVENT_SAMPLE (IP, %d): %d: %p period: %Ld\n", + dprintf("%p [%p]: PERF_EVENT_SAMPLE (IP, %d): %d/%d: %p period: %Ld\n", (void *)(offset + head), (void *)(long)(event->header.size), event->header.misc, - event->ip.pid, + event->ip.pid, event->ip.tid, (void *)(long)ip, (long long)period); @@ -1612,10 +1612,11 @@ process_mmap_event(event_t *event, unsigned long offset, unsigned long head) struct thread *thread = threads__findnew(event->mmap.pid); struct map *map = map__new(&event->mmap); - dprintf("%p [%p]: PERF_EVENT_MMAP %d: [%p(%p) @ %p]: %s\n", + dprintf("%p [%p]: PERF_EVENT_MMAP %d/%d: [%p(%p) @ %p]: %s\n", (void *)(offset + head), (void *)(long)(event->header.size), event->mmap.pid, + event->mmap.tid, (void *)(long)event->mmap.start, (void *)(long)event->mmap.len, (void *)(long)event->mmap.pgoff, -- cgit v0.10.2 From 247648e3742ded01e42a4b14c2da330b13cbb47f Mon Sep 17 00:00:00 2001 From: Arnaldo Carvalho de Melo Date: Tue, 11 Aug 2009 16:22:11 -0300 Subject: perf tools: Fix fallback to cplus_demangle() when bfd_demangle() is not available MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit In old binutils we can't access bfd_demangle(), use cplus_demangle() just like oprofile. Signed-off-by: Arnaldo Carvalho de Melo Cc: Luis Claudio R. Gonçalves Cc: H. Peter Anvin Cc: Peter Zijlstra Cc: Mike Galbraith Cc: Frédéric Weisbecker LKML-Reference: <20090811192211.GG18061@ghostprotocols.net> Signed-off-by: Ingo Molnar diff --git a/tools/perf/Makefile b/tools/perf/Makefile index 60411e9..c045b42 100644 --- a/tools/perf/Makefile +++ b/tools/perf/Makefile @@ -382,22 +382,29 @@ endif ifdef NO_DEMANGLE BASIC_CFLAGS += -DNO_DEMANGLE else - has_bfd := $(shell sh -c "(echo '\#include '; echo 'int main(void) { bfd_demangle(0, 0, 0); return 0; }') | $(CC) -x c - $(ALL_CFLAGS) -o /dev/null $(ALL_LDFLAGS) -lbfd > /dev/null 2>&1 && echo y") - has_bfd_iberty := $(shell sh -c "(echo '\#include '; echo 'int main(void) { bfd_demangle(0, 0, 0); return 0; }') | $(CC) -x c - $(ALL_CFLAGS) -o /dev/null $(ALL_LDFLAGS) -lbfd -liberty > /dev/null 2>&1 && echo y") - - has_bfd_iberty_z := $(shell sh -c "(echo '\#include '; echo 'int main(void) { bfd_demangle(0, 0, 0); return 0; }') | $(CC) -x c - $(ALL_CFLAGS) -o /dev/null $(ALL_LDFLAGS) -lbfd -liberty -lz > /dev/null 2>&1 && echo y") - ifeq ($(has_bfd),y) EXTLIBS += -lbfd - else ifeq ($(has_bfd_iberty),y) - EXTLIBS += -lbfd -liberty - else ifeq ($(has_bfd_iberty_z),y) - EXTLIBS += -lbfd -liberty -lz else - msg := $(warning No bfd.h/libbfd found, install binutils-dev[el] to gain symbol demangling) - BASIC_CFLAGS += -DNO_DEMANGLE + has_bfd_iberty := $(shell sh -c "(echo '\#include '; echo 'int main(void) { bfd_demangle(0, 0, 0); return 0; }') | $(CC) -x c - $(ALL_CFLAGS) -o /dev/null $(ALL_LDFLAGS) -lbfd -liberty > /dev/null 2>&1 && echo y") + ifeq ($(has_bfd_iberty),y) + EXTLIBS += -lbfd -liberty + else + has_bfd_iberty_z := $(shell sh -c "(echo '\#include '; echo 'int main(void) { bfd_demangle(0, 0, 0); return 0; }') | $(CC) -x c - $(ALL_CFLAGS) -o /dev/null $(ALL_LDFLAGS) -lbfd -liberty -lz > /dev/null 2>&1 && echo y") + ifeq ($(has_bfd_iberty_z),y) + EXTLIBS += -lbfd -liberty -lz + else + has_cplus_demangle := $(shell sh -c "(echo 'extern char *cplus_demangle(const char *, int);'; echo 'int main(void) { cplus_demangle(0, 0); return 0; }') | $(CC) -x c - $(ALL_CFLAGS) -o /dev/null $(ALL_LDFLAGS) -liberty > /dev/null 2>&1 && echo y") + ifeq ($(has_cplus_demangle),y) + EXTLIBS += -liberty + BASIC_CFLAGS += -DHAVE_CPLUS_DEMANGLE + else + msg := $(warning No bfd.h/libbfd found, install binutils-dev[el] to gain symbol demangling) + BASIC_CFLAGS += -DNO_DEMANGLE + endif + endif + endif endif endif diff --git a/tools/perf/util/symbol.c b/tools/perf/util/symbol.c index f1dcede..2473fd4 100644 --- a/tools/perf/util/symbol.c +++ b/tools/perf/util/symbol.c @@ -7,23 +7,8 @@ #include #include -#ifndef NO_DEMANGLE -#include -#else -static inline -char *bfd_demangle(void __used *v, const char __used *c, int __used i) -{ - return NULL; -} -#endif - const char *sym_hist_filter; -#ifndef DMGL_PARAMS -#define DMGL_PARAMS (1 << 0) /* Include function args */ -#define DMGL_ANSI (1 << 1) /* Include const, volatile, etc */ -#endif - enum dso_origin { DSO__ORIG_KERNEL = 0, DSO__ORIG_JAVA_JIT, diff --git a/tools/perf/util/symbol.h b/tools/perf/util/symbol.h index 1e003ec..b53bf01 100644 --- a/tools/perf/util/symbol.h +++ b/tools/perf/util/symbol.h @@ -7,6 +7,30 @@ #include #include "module.h" +#ifdef HAVE_CPLUS_DEMANGLE +extern char *cplus_demangle(const char *, int); + +static inline char *bfd_demangle(void __used *v, const char *c, int i) +{ + return cplus_demangle(c, i); +} +#else +#ifdef NO_DEMANGLE +static inline char *bfd_demangle(void __used *v, const char __used *c, + int __used i) +{ + return NULL; +} +#else +#include +#endif +#endif + +#ifndef DMGL_PARAMS +#define DMGL_PARAMS (1 << 0) /* Include function args */ +#define DMGL_ANSI (1 << 1) /* Include const, volatile, etc */ +#endif + struct symbol { struct rb_node rb_node; u64 start; -- cgit v0.10.2 From 1340e6bbaff7ff7f6f75eb4a5c34933efce84a84 Mon Sep 17 00:00:00 2001 From: Arnaldo Carvalho de Melo Date: Tue, 11 Aug 2009 17:04:36 -0300 Subject: perf tools: Fix dso__new handle() to handle deleted DSOs MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit It is better than showing the map addr, this way at least we know that we can't get the symtabs because the DSO was deleted (system update) while an app still used such DSO. Yeah, don't do that, but if you do, you'll figure it out quicker this way. [acme@doppio linux-2.6-tip]$ perf report | head -15 # Samples: 3796 # # Overhead Command Shared Object Symbol # ........ ....... ................................................................... ...... # 23.55% pidgin /lib64/libglib-2.0.so.0.2000.4.#prelink#.Pd98lu (deleted) [.] 0x00000000038844 21.55% pidgin /lib64/libpthread-2.10.1.so.#prelink#.AFwK8Q (deleted) [.] 0x0000000000a42d 10.85% pidgin [kernel] [.] vread_hpet 7.85% pidgin /lib64/libgobject-2.0.so.0.2000.4.#prelink#.o1vpU7 (deleted) [.] 0x00000000014de8 3.35% pidgin /lib64/libc-2.10.1.so (deleted) [.] 0x0000000007a875 3.19% pidgin /lib64/libdbus-1.so.3.4.0.#prelink#.6mwgZP (deleted) [.] 0x0000000001d254 3.06% pidgin /usr/lib64/libgtk-x11-2.0.so.0.1600.5.#prelink#.511hAl (deleted) [.] 0x000000002334e7 2.90% pidgin /usr/lib64/libgdk-x11-2.0.so.0.1600.5.#prelink#.5qlMo1 (deleted) [.] 0x00000000037b2d 1.84% pidgin [kernel] [k] do_sys_poll 1.45% pidgin /usr/lib64/libX11.so.6.2.0.#prelink#.iR59Rx (deleted) [.] 0x0000000004c751 [acme@doppio linux-2.6-tip]$ Signed-off-by: Arnaldo Carvalho de Melo Cc: Luis Claudio R. Gonçalves Cc: Clark Williams Cc: H. Peter Anvin Cc: Peter Zijlstra Cc: Mike Galbraith Cc: Frédéric Weisbecker LKML-Reference: <20090811200436.GA3478@ghostprotocols.net> Signed-off-by: Ingo Molnar diff --git a/tools/perf/util/symbol.c b/tools/perf/util/symbol.c index 2473fd4..5c0f42e 100644 --- a/tools/perf/util/symbol.c +++ b/tools/perf/util/symbol.c @@ -801,6 +801,8 @@ more: } out: free(name); + if (ret < 0 && strstr(self->name, " (deleted)") != NULL) + return 0; return ret; } -- cgit v0.10.2 From 0a5ac84650fb7a7f226814103d95724e34b012ae Mon Sep 17 00:00:00 2001 From: Jens Axboe Date: Wed, 12 Aug 2009 11:18:01 +0200 Subject: perf record: Add missing -C option support for specifying profile cpu perf top supports a -C for setting the profile CPU, but perf record does not. This adds the same option for perf record, allowing the user to specify a specific target profile CPU. Signed-off-by: Jens Axboe Cc: Peter Zijlstra Cc: Mike Galbraith Cc: Paul Mackerras Cc: Arnaldo Carvalho de Melo Cc: Frederic Weisbecker LKML-Reference: <20090812091801.GC12579@kernel.dk> Signed-off-by: Ingo Molnar diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c index 30b83de..de76008 100644 --- a/tools/perf/builtin-record.c +++ b/tools/perf/builtin-record.c @@ -35,6 +35,7 @@ static const char *output_name = "perf.data"; static int group = 0; static unsigned int realtime_prio = 0; static int system_wide = 0; +static int profile_cpu = -1; static pid_t target_pid = -1; static int inherit = 1; static int force = 0; @@ -431,6 +432,8 @@ try_again: if (err == EPERM) die("Permission error - are you root?\n"); + else if (err == ENODEV && profile_cpu != -1) + die("No such device - did you specify an out-of-range profile CPU?\n"); /* * If it's cycles then fall back to hrtimer @@ -564,9 +567,15 @@ static int __cmd_record(int argc, const char **argv) if (pid == -1) pid = getpid(); - open_counters(-1, pid); - } else for (i = 0; i < nr_cpus; i++) - open_counters(i, target_pid); + open_counters(profile_cpu, pid); + } else { + if (profile_cpu != -1) { + open_counters(profile_cpu, target_pid); + } else { + for (i = 0; i < nr_cpus; i++) + open_counters(i, target_pid); + } + } if (file_new) perf_header__write(header, output); @@ -645,6 +654,8 @@ static const struct option options[] = { "system-wide collection from all CPUs"), OPT_BOOLEAN('A', "append", &append_file, "append to the output file to do incremental profiling"), + OPT_INTEGER('C', "profile_cpu", &profile_cpu, + "CPU to profile on"), OPT_BOOLEAN('f', "force", &force, "overwrite existing data file"), OPT_LONG('c', "count", &default_interval, -- cgit v0.10.2 From 04da8a43da804723a550f00dd158fd5b5e25ae35 Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Tue, 11 Aug 2009 10:40:08 +0200 Subject: perf_counter, x86: Fix/improve apic fallback Johannes Stezenbach reported that his Pentium-M based laptop does not have the local APIC enabled by default, and hence perfcounters do not get initialized. Add a fallback for this case: allow non-sampled counters and return with an error on sampled counters. This allows 'perf stat' to work out of box - and allows 'perf top' and 'perf record' to fall back on a hrtimer based sampling method. ( Passing 'lapic' on the boot line will allow hardware sampling to occur - but if the APIC is disabled permanently by the hardware then this fallback still allows more systems to use perfcounters. ) Also decouple perfcounter support from X86_LOCAL_APIC. -v2: fix typo breaking counters on all other systems ... Reported-by: Johannes Stezenbach Cc: Peter Zijlstra Cc: Mike Galbraith Cc: Paul Mackerras Cc: Arnaldo Carvalho de Melo Cc: Frederic Weisbecker LKML-Reference: Signed-off-by: Ingo Molnar diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index 738bdc6..13ffa5d 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -24,6 +24,7 @@ config X86 select HAVE_UNSTABLE_SCHED_CLOCK select HAVE_IDE select HAVE_OPROFILE + select HAVE_PERF_COUNTERS if (!M386 && !M486) select HAVE_IOREMAP_PROT select HAVE_KPROBES select ARCH_WANT_OPTIONAL_GPIOLIB @@ -742,7 +743,6 @@ config X86_UP_IOAPIC config X86_LOCAL_APIC def_bool y depends on X86_64 || SMP || X86_32_NON_STANDARD || X86_UP_APIC - select HAVE_PERF_COUNTERS if (!M386 && !M486) config X86_IO_APIC def_bool y diff --git a/arch/x86/kernel/cpu/perf_counter.c b/arch/x86/kernel/cpu/perf_counter.c index fffc126..900332b 100644 --- a/arch/x86/kernel/cpu/perf_counter.c +++ b/arch/x86/kernel/cpu/perf_counter.c @@ -55,6 +55,7 @@ struct x86_pmu { int num_counters_fixed; int counter_bits; u64 counter_mask; + int apic; u64 max_period; u64 intel_ctrl; }; @@ -613,6 +614,7 @@ static DEFINE_MUTEX(pmc_reserve_mutex); static bool reserve_pmc_hardware(void) { +#ifdef CONFIG_X86_LOCAL_APIC int i; if (nmi_watchdog == NMI_LOCAL_APIC) @@ -627,9 +629,11 @@ static bool reserve_pmc_hardware(void) if (!reserve_evntsel_nmi(x86_pmu.eventsel + i)) goto eventsel_fail; } +#endif return true; +#ifdef CONFIG_X86_LOCAL_APIC eventsel_fail: for (i--; i >= 0; i--) release_evntsel_nmi(x86_pmu.eventsel + i); @@ -644,10 +648,12 @@ perfctr_fail: enable_lapic_nmi_watchdog(); return false; +#endif } static void release_pmc_hardware(void) { +#ifdef CONFIG_X86_LOCAL_APIC int i; for (i = 0; i < x86_pmu.num_counters; i++) { @@ -657,6 +663,7 @@ static void release_pmc_hardware(void) if (nmi_watchdog == NMI_LOCAL_APIC) enable_lapic_nmi_watchdog(); +#endif } static void hw_perf_counter_destroy(struct perf_counter *counter) @@ -748,6 +755,15 @@ static int __hw_perf_counter_init(struct perf_counter *counter) hwc->sample_period = x86_pmu.max_period; hwc->last_period = hwc->sample_period; atomic64_set(&hwc->period_left, hwc->sample_period); + } else { + /* + * If we have a PMU initialized but no APIC + * interrupts, we cannot sample hardware + * counters (user-space has to fall back and + * sample via a hrtimer based software counter): + */ + if (!x86_pmu.apic) + return -EOPNOTSUPP; } counter->destroy = hw_perf_counter_destroy; @@ -1449,18 +1465,22 @@ void smp_perf_pending_interrupt(struct pt_regs *regs) void set_perf_counter_pending(void) { +#ifdef CONFIG_X86_LOCAL_APIC apic->send_IPI_self(LOCAL_PENDING_VECTOR); +#endif } void perf_counters_lapic_init(void) { - if (!x86_pmu_initialized()) +#ifdef CONFIG_X86_LOCAL_APIC + if (!x86_pmu.apic || !x86_pmu_initialized()) return; /* * Always use NMI for PMU */ apic_write(APIC_LVTPC, APIC_DM_NMI); +#endif } static int __kprobes @@ -1484,7 +1504,9 @@ perf_counter_nmi_handler(struct notifier_block *self, regs = args->regs; +#ifdef CONFIG_X86_LOCAL_APIC apic_write(APIC_LVTPC, APIC_DM_NMI); +#endif /* * Can't rely on the handled return value to say it was our NMI, two * counters could trigger 'simultaneously' raising two back-to-back NMIs. @@ -1515,6 +1537,7 @@ static struct x86_pmu p6_pmu = { .event_map = p6_pmu_event_map, .raw_event = p6_pmu_raw_event, .max_events = ARRAY_SIZE(p6_perfmon_event_map), + .apic = 1, .max_period = (1ULL << 31) - 1, .version = 0, .num_counters = 2, @@ -1541,6 +1564,7 @@ static struct x86_pmu intel_pmu = { .event_map = intel_pmu_event_map, .raw_event = intel_pmu_raw_event, .max_events = ARRAY_SIZE(intel_perfmon_event_map), + .apic = 1, /* * Intel PMCs cannot be accessed sanely above 32 bit width, * so we install an artificial 1<<31 period regardless of @@ -1564,6 +1588,7 @@ static struct x86_pmu amd_pmu = { .num_counters = 4, .counter_bits = 48, .counter_mask = (1ULL << 48) - 1, + .apic = 1, /* use highest bit to detect overflow */ .max_period = (1ULL << 47) - 1, }; @@ -1589,13 +1614,14 @@ static int p6_pmu_init(void) return -ENODEV; } + x86_pmu = p6_pmu; + if (!cpu_has_apic) { pr_info("no APIC, boot with the \"lapic\" boot parameter to force-enable it.\n"); - return -ENODEV; + pr_info("no hardware sampling interrupt available.\n"); + x86_pmu.apic = 0; } - x86_pmu = p6_pmu; - return 0; } -- cgit v0.10.2 From 1ae88b2e446261c038f2c0c3150ffae142b227a2 Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Wed, 12 Aug 2009 09:12:30 -0400 Subject: NFS: Fix an O_DIRECT Oops... We can't call nfs_readdata_release()/nfs_writedata_release() without first initialising and referencing args.context. Doing so inside nfs_direct_read_schedule_segment()/nfs_direct_write_schedule_segment() causes an Oops. We should rather be calling nfs_readdata_free()/nfs_writedata_free() in those cases. Looking at the O_DIRECT code, the "struct nfs_direct_req" is already referencing the nfs_open_context for us. Since the readdata and writedata structures carry a reference to that, we can simplify things by getting rid of the extra nfs_open_context references, so that we can replace all instances of nfs_readdata_release()/nfs_writedata_release(). Reported-by: Catalin Marinas Signed-off-by: Trond Myklebust Tested-by: Catalin Marinas Cc: stable@kernel.org Signed-off-by: Linus Torvalds diff --git a/fs/nfs/direct.c b/fs/nfs/direct.c index 489fc01..e4e089a 100644 --- a/fs/nfs/direct.c +++ b/fs/nfs/direct.c @@ -255,7 +255,7 @@ static void nfs_direct_read_release(void *calldata) if (put_dreq(dreq)) nfs_direct_complete(dreq); - nfs_readdata_release(calldata); + nfs_readdata_free(data); } static const struct rpc_call_ops nfs_read_direct_ops = { @@ -314,14 +314,14 @@ static ssize_t nfs_direct_read_schedule_segment(struct nfs_direct_req *dreq, data->npages, 1, 0, data->pagevec, NULL); up_read(¤t->mm->mmap_sem); if (result < 0) { - nfs_readdata_release(data); + nfs_readdata_free(data); break; } if ((unsigned)result < data->npages) { bytes = result * PAGE_SIZE; if (bytes <= pgbase) { nfs_direct_release_pages(data->pagevec, result); - nfs_readdata_release(data); + nfs_readdata_free(data); break; } bytes -= pgbase; @@ -334,7 +334,7 @@ static ssize_t nfs_direct_read_schedule_segment(struct nfs_direct_req *dreq, data->inode = inode; data->cred = msg.rpc_cred; data->args.fh = NFS_FH(inode); - data->args.context = get_nfs_open_context(ctx); + data->args.context = ctx; data->args.offset = pos; data->args.pgbase = pgbase; data->args.pages = data->pagevec; @@ -441,7 +441,7 @@ static void nfs_direct_free_writedata(struct nfs_direct_req *dreq) struct nfs_write_data *data = list_entry(dreq->rewrite_list.next, struct nfs_write_data, pages); list_del(&data->pages); nfs_direct_release_pages(data->pagevec, data->npages); - nfs_writedata_release(data); + nfs_writedata_free(data); } } @@ -534,7 +534,7 @@ static void nfs_direct_commit_release(void *calldata) dprintk("NFS: %5u commit returned %d\n", data->task.tk_pid, status); nfs_direct_write_complete(dreq, data->inode); - nfs_commitdata_release(calldata); + nfs_commit_free(data); } static const struct rpc_call_ops nfs_commit_direct_ops = { @@ -570,7 +570,7 @@ static void nfs_direct_commit_schedule(struct nfs_direct_req *dreq) data->args.fh = NFS_FH(data->inode); data->args.offset = 0; data->args.count = 0; - data->args.context = get_nfs_open_context(dreq->ctx); + data->args.context = dreq->ctx; data->res.count = 0; data->res.fattr = &data->fattr; data->res.verf = &data->verf; @@ -734,14 +734,14 @@ static ssize_t nfs_direct_write_schedule_segment(struct nfs_direct_req *dreq, data->npages, 0, 0, data->pagevec, NULL); up_read(¤t->mm->mmap_sem); if (result < 0) { - nfs_writedata_release(data); + nfs_writedata_free(data); break; } if ((unsigned)result < data->npages) { bytes = result * PAGE_SIZE; if (bytes <= pgbase) { nfs_direct_release_pages(data->pagevec, result); - nfs_writedata_release(data); + nfs_writedata_free(data); break; } bytes -= pgbase; @@ -756,7 +756,7 @@ static ssize_t nfs_direct_write_schedule_segment(struct nfs_direct_req *dreq, data->inode = inode; data->cred = msg.rpc_cred; data->args.fh = NFS_FH(inode); - data->args.context = get_nfs_open_context(ctx); + data->args.context = ctx; data->args.offset = pos; data->args.pgbase = pgbase; data->args.pages = data->pagevec; diff --git a/fs/nfs/read.c b/fs/nfs/read.c index 73ea5e8..12c9e66 100644 --- a/fs/nfs/read.c +++ b/fs/nfs/read.c @@ -60,17 +60,15 @@ struct nfs_read_data *nfs_readdata_alloc(unsigned int pagecount) return p; } -static void nfs_readdata_free(struct nfs_read_data *p) +void nfs_readdata_free(struct nfs_read_data *p) { if (p && (p->pagevec != &p->page_array[0])) kfree(p->pagevec); mempool_free(p, nfs_rdata_mempool); } -void nfs_readdata_release(void *data) +static void nfs_readdata_release(struct nfs_read_data *rdata) { - struct nfs_read_data *rdata = data; - put_nfs_open_context(rdata->args.context); nfs_readdata_free(rdata); } diff --git a/fs/nfs/write.c b/fs/nfs/write.c index 0a0a2ff..a34fae2 100644 --- a/fs/nfs/write.c +++ b/fs/nfs/write.c @@ -87,17 +87,15 @@ struct nfs_write_data *nfs_writedata_alloc(unsigned int pagecount) return p; } -static void nfs_writedata_free(struct nfs_write_data *p) +void nfs_writedata_free(struct nfs_write_data *p) { if (p && (p->pagevec != &p->page_array[0])) kfree(p->pagevec); mempool_free(p, nfs_wdata_mempool); } -void nfs_writedata_release(void *data) +static void nfs_writedata_release(struct nfs_write_data *wdata) { - struct nfs_write_data *wdata = data; - put_nfs_open_context(wdata->args.context); nfs_writedata_free(wdata); } diff --git a/include/linux/nfs_fs.h b/include/linux/nfs_fs.h index fdffb41..f6b9024 100644 --- a/include/linux/nfs_fs.h +++ b/include/linux/nfs_fs.h @@ -473,7 +473,6 @@ extern int nfs_writepages(struct address_space *, struct writeback_control *); extern int nfs_flush_incompatible(struct file *file, struct page *page); extern int nfs_updatepage(struct file *, struct page *, unsigned int, unsigned int); extern int nfs_writeback_done(struct rpc_task *, struct nfs_write_data *); -extern void nfs_writedata_release(void *); /* * Try to write back everything synchronously (but check the @@ -488,7 +487,6 @@ extern int nfs_wb_page_cancel(struct inode *inode, struct page* page); extern int nfs_commit_inode(struct inode *, int); extern struct nfs_write_data *nfs_commitdata_alloc(void); extern void nfs_commit_free(struct nfs_write_data *wdata); -extern void nfs_commitdata_release(void *wdata); #else static inline int nfs_commit_inode(struct inode *inode, int how) @@ -507,6 +505,7 @@ nfs_have_writebacks(struct inode *inode) * Allocate nfs_write_data structures */ extern struct nfs_write_data *nfs_writedata_alloc(unsigned int npages); +extern void nfs_writedata_free(struct nfs_write_data *); /* * linux/fs/nfs/read.c @@ -515,7 +514,6 @@ extern int nfs_readpage(struct file *, struct page *); extern int nfs_readpages(struct file *, struct address_space *, struct list_head *, unsigned); extern int nfs_readpage_result(struct rpc_task *, struct nfs_read_data *); -extern void nfs_readdata_release(void *data); extern int nfs_readpage_async(struct nfs_open_context *, struct inode *, struct page *); @@ -523,6 +521,7 @@ extern int nfs_readpage_async(struct nfs_open_context *, struct inode *, * Allocate nfs_read_data structures */ extern struct nfs_read_data *nfs_readdata_alloc(unsigned int npages); +extern void nfs_readdata_free(struct nfs_read_data *); /* * linux/fs/nfs3proc.c -- cgit v0.10.2 From 39cbb602b543e477df71dca84b5b2e36f8bd29fc Mon Sep 17 00:00:00 2001 From: "Alan D. Brunelle" Date: Fri, 7 Aug 2009 12:01:08 -0400 Subject: Remove double removal of blktrace directory commit fd51d251e4cdb21f68e9dbc4336514d64a105a79 Author: Stefan Raspl Date: Tue May 19 09:59:08 2009 +0200 blktrace: remove debugfs entries on bad path added in an explicit invocation of debugfs_remove for bt->dir, in blk_remove_buf_file_callback we are also getting the directory removed. On occasion I am seeing memory corruption that I have bisected down to this commit. [The testing involves a (long) series of I/O benchmarks with blktrace invoked around the actual runs.] I believe that this committed patch is correct, but the problem actually lies in the code in blk_remove_buf_file_callback. With this patch I am able to consistently get complete runs whereas previously I could not get a single run to complete. The first part of the patch simply moves the debugfs_remove below the relay_close: the relay_close call will remove files under bt->dir, and so we should not remove the directory until all the files we created have been removed. (Note: This is not sufficient to fix the problem - the file system code has ref counts on the directoy, so our invocation does not cause the directory to actually be removed. Nonetheless, we should not rely upon that feature.) Signed-off-by: Alan D. Brunelle Signed-off-by: Jens Axboe diff --git a/kernel/trace/blktrace.c b/kernel/trace/blktrace.c index 1090b0a..7a34cb5 100644 --- a/kernel/trace/blktrace.c +++ b/kernel/trace/blktrace.c @@ -267,8 +267,8 @@ static void blk_trace_free(struct blk_trace *bt) { debugfs_remove(bt->msg_file); debugfs_remove(bt->dropped_file); - debugfs_remove(bt->dir); relay_close(bt->rchan); + debugfs_remove(bt->dir); free_percpu(bt->sequence); free_percpu(bt->msg_data); kfree(bt); @@ -378,18 +378,8 @@ static int blk_subbuf_start_callback(struct rchan_buf *buf, void *subbuf, static int blk_remove_buf_file_callback(struct dentry *dentry) { - struct dentry *parent = dentry->d_parent; debugfs_remove(dentry); - /* - * this will fail for all but the last file, but that is ok. what we - * care about is the top level buts->name directory going away, when - * the last trace file is gone. Then we don't have to rmdir() that - * manually on trace stop, so it nicely solves the issue with - * force killing of running traces. - */ - - debugfs_remove(parent); return 0; } -- cgit v0.10.2 From 51d5668cb2e3fd1827a55184e48606fff054c5be Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Thu, 13 Aug 2009 09:54:02 +1000 Subject: md: never advance 'events' counter by more than 1. When assembling arrays, md allows two devices to have different event counts as long as the difference is only '1'. This is to cope with a system failure between updating the metadata on two difference devices. However there are currently times when we update the event count by 2. This was done to keep the event count even when the array is clean and odd when it is dirty, which allows us to avoid writing common update to spare devices and so allow those spares to go to sleep. This is bad for the above reason. So change it to never increase by two. This means that the alignment between 'odd/even' and 'clean/dirty' might take a little longer to attain, but that is only a small cost. The spares will get a few more updates but that will still be spared (;-) most updates and can still go to sleep. Prior to this patch there was a small chance that after a crash an array would fail to assemble due to the overly large event count mismatch. Signed-off-by: NeilBrown diff --git a/drivers/md/md.c b/drivers/md/md.c index 5614500..d18805f 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -1975,17 +1975,14 @@ repeat: /* otherwise we have to go forward and ... */ mddev->events ++; if (!mddev->in_sync || mddev->recovery_cp != MaxSector) { /* not clean */ - /* .. if the array isn't clean, insist on an odd 'events' */ - if ((mddev->events&1)==0) { - mddev->events++; + /* .. if the array isn't clean, an 'even' event must also go + * to spares. */ + if ((mddev->events&1)==0) nospares = 0; - } } else { - /* otherwise insist on an even 'events' (for clean states) */ - if ((mddev->events&1)) { - mddev->events++; + /* otherwise an 'odd' event must go to spares */ + if ((mddev->events&1)) nospares = 0; - } } } -- cgit v0.10.2 From 67ac6011db5d2b0c853d573ff474b25c85dfb644 Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Thu, 13 Aug 2009 10:06:24 +1000 Subject: md/raid5: allow new reshape modes to be restarted in the middle. md/raid5 doesn't allow a reshape to restart if it involves writing over the same part of disk that it would be reading from. This happens at the beginning of a reshape that increases the number of devices, at the end of a reshape that decreases the number of devices, and continuously for a reshape that does not change the number of devices. The current code is correct for the "increase number of devices" case as the critical section at the start is handled by userspace performing a backup. It does not work for reducing the number of devices, or the no-change case. For 'reducing', we need to invert the test. For no-change we cannot really be sure things will be safe, so simply require the array to be read-only, which is how the user-space code which carefully starts such arrays works. Signed-off-by: NeilBrown diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c index 2b521ee..b8a22a2 100644 --- a/drivers/md/raid5.c +++ b/drivers/md/raid5.c @@ -4509,7 +4509,26 @@ static int run(mddev_t *mddev) (old_disks-max_degraded)); /* here_old is the first stripe that we might need to read * from */ - if (here_new >= here_old) { + if (mddev->delta_disks == 0) { + /* We cannot be sure it is safe to start an in-place + * reshape. It is only safe if user-space if monitoring + * and taking constant backups. + * mdadm always starts a situation like this in + * readonly mode so it can take control before + * allowing any writes. So just check for that. + */ + if ((here_new * mddev->new_chunk_sectors != + here_old * mddev->chunk_sectors) || + mddev->ro == 0) { + printk(KERN_ERR "raid5: in-place reshape must be started" + " in read-only mode - aborting\n"); + return -EINVAL; + } + } else if (mddev->delta_disks < 0 + ? (here_new * mddev->new_chunk_sectors <= + here_old * mddev->chunk_sectors) + : (here_new * mddev->new_chunk_sectors >= + here_old * mddev->chunk_sectors)) { /* Reading from the same stripe as writing to - bad */ printk(KERN_ERR "raid5: reshape_position too early for " "auto-recovery - aborting.\n"); -- cgit v0.10.2 From a639755cf885e437b2fe4168d35157fa90d530ab Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Thu, 13 Aug 2009 10:13:00 +1000 Subject: md/raid5: make sure a reshape restarts at the correct address. This "if" don't allow for the possibility that the number of devices doesn't change, and so sector_nr isn't set correctly in that case. So change '>' to '>='. Signed-off-by: NeilBrown diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c index b8a22a2..94a74cb 100644 --- a/drivers/md/raid5.c +++ b/drivers/md/raid5.c @@ -3785,7 +3785,7 @@ static sector_t reshape_request(mddev_t *mddev, sector_t sector_nr, int *skipped conf->reshape_progress < raid5_size(mddev, 0, 0)) { sector_nr = raid5_size(mddev, 0, 0) - conf->reshape_progress; - } else if (mddev->delta_disks > 0 && + } else if (mddev->delta_disks >= 0 && conf->reshape_progress > 0) sector_nr = conf->reshape_progress; sector_div(sector_nr, new_data_disks); -- cgit v0.10.2 From 9799218ae36910af50f002a5db1802d576fffb43 Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Wed, 12 Aug 2009 17:37:52 -0700 Subject: Revert "libertas: Read buffer overflow" This reverts commit 57921c312e8cef72ba35a4cfe870b376da0b1b87. On request from John Linville: It has been shown to create a new problem. There is work towards a solution to that one, but it isn't a simple clean-up. Signed-off-by: David S. Miller diff --git a/drivers/net/wireless/libertas/assoc.c b/drivers/net/wireless/libertas/assoc.c index d699737..b9b3741 100644 --- a/drivers/net/wireless/libertas/assoc.c +++ b/drivers/net/wireless/libertas/assoc.c @@ -1,7 +1,6 @@ /* Copyright (C) 2006, Red Hat, Inc. */ #include -#include #include #include #include @@ -44,21 +43,21 @@ static int get_common_rates(struct lbs_private *priv, u16 *rates_size) { u8 *card_rates = lbs_bg_rates; + size_t num_card_rates = sizeof(lbs_bg_rates); int ret = 0, i, j; - u8 tmp[(ARRAY_SIZE(lbs_bg_rates) - 1) * (*rates_size - 1)]; + u8 tmp[30]; size_t tmp_size = 0; /* For each rate in card_rates that exists in rate1, copy to tmp */ - for (i = 0; i < ARRAY_SIZE(lbs_bg_rates) && card_rates[i]; i++) { - for (j = 0; j < *rates_size && rates[j]; j++) { + for (i = 0; card_rates[i] && (i < num_card_rates); i++) { + for (j = 0; rates[j] && (j < *rates_size); j++) { if (rates[j] == card_rates[i]) tmp[tmp_size++] = card_rates[i]; } } lbs_deb_hex(LBS_DEB_JOIN, "AP rates ", rates, *rates_size); - lbs_deb_hex(LBS_DEB_JOIN, "card rates ", card_rates, - ARRAY_SIZE(lbs_bg_rates)); + lbs_deb_hex(LBS_DEB_JOIN, "card rates ", card_rates, num_card_rates); lbs_deb_hex(LBS_DEB_JOIN, "common rates", tmp, tmp_size); lbs_deb_join("TX data rate 0x%02x\n", priv->cur_rate); @@ -70,7 +69,10 @@ static int get_common_rates(struct lbs_private *priv, lbs_pr_alert("Previously set fixed data rate %#x isn't " "compatible with the network.\n", priv->cur_rate); ret = -1; + goto done; } + ret = 0; + done: memset(rates, 0, *rates_size); *rates_size = min_t(int, tmp_size, *rates_size); @@ -320,7 +322,7 @@ static int lbs_associate(struct lbs_private *priv, rates = (struct mrvl_ie_rates_param_set *) pos; rates->header.type = cpu_to_le16(TLV_TYPE_RATES); memcpy(&rates->rates, &bss->rates, MAX_RATES); - tmplen = min_t(u16, ARRAY_SIZE(rates->rates), MAX_RATES); + tmplen = MAX_RATES; if (get_common_rates(priv, rates->rates, &tmplen)) { ret = -1; goto done; @@ -596,7 +598,7 @@ static int lbs_adhoc_join(struct lbs_private *priv, /* Copy Data rates from the rates recorded in scan response */ memset(cmd.bss.rates, 0, sizeof(cmd.bss.rates)); - ratesize = min_t(u16, ARRAY_SIZE(cmd.bss.rates), MAX_RATES); + ratesize = min_t(u16, sizeof(cmd.bss.rates), MAX_RATES); memcpy(cmd.bss.rates, bss->rates, ratesize); if (get_common_rates(priv, cmd.bss.rates, &ratesize)) { lbs_deb_join("ADHOC_JOIN: get_common_rates returned error.\n"); -- cgit v0.10.2 From 1a67dde0abba36421a1257d01ba9de2f6d1c160a Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Thu, 13 Aug 2009 10:41:49 +1000 Subject: md/raid5: Properly remove excess drives after shrinking a raid5/6 We were removing the drives, from the array, but not removing symlinks from /sys/.... and not marking the device as having been removed. Signed-off-by: NeilBrown diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c index 94a74cb..b8a2c5d 100644 --- a/drivers/md/raid5.c +++ b/drivers/md/raid5.c @@ -5097,8 +5097,15 @@ static void raid5_finish_reshape(mddev_t *mddev) mddev->degraded--; for (d = conf->raid_disks ; d < conf->raid_disks - mddev->delta_disks; - d++) - raid5_remove_disk(mddev, d); + d++) { + mdk_rdev_t *rdev = conf->disks[d].rdev; + if (rdev && raid5_remove_disk(mddev, d) == 0) { + char nm[20]; + sprintf(nm, "rd%d", rdev->raid_disk); + sysfs_remove_link(&mddev->kobj, nm); + rdev->raid_disk = -1; + } + } } mddev->layout = conf->algorithm; mddev->chunk_sectors = conf->chunk_sectors; -- cgit v0.10.2 From 4d484a4a7a5126410eed5f8dd329a33f6eeed068 Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Thu, 13 Aug 2009 10:41:50 +1000 Subject: md: allow upper limit for resync/reshape to be set when array is read-only Normally we only allow the upper limit for a reshape to be decreased when the array not performing a sync/recovery/reshape, otherwise there could be races. But if an array is part-way through a reshape when it is assembled the reshape is started immediately leaving no window to set an upper bound. If the array is started read-only, the reshape will be suspended until the array becomes writable, so that provides a window during which it is perfectly safe to reduce the upper limit of a reshape. So: allow the upper limit (sync_max) to be reduced even if the reshape thread is running, as long as the array is still read-only. Signed-off-by: NeilBrown diff --git a/drivers/md/md.c b/drivers/md/md.c index d18805f..103f2d3 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -3599,6 +3599,7 @@ max_sync_store(mddev_t *mddev, const char *buf, size_t len) if (max < mddev->resync_min) return -EINVAL; if (max < mddev->resync_max && + mddev->ro == 0 && test_bit(MD_RECOVERY_RUNNING, &mddev->recovery)) return -EBUSY; -- cgit v0.10.2 From ba9a633787eed1e90d587282642580ad3d44f7fd Mon Sep 17 00:00:00 2001 From: Magnus Damm Date: Wed, 22 Jul 2009 15:14:29 +0000 Subject: sh: convert processor device setup functions to arch_initcall() Convert the processor platform device setup functions from __initcall() and sometimes device_initcall() to arch_initcall(). This makes sure that the platform devices are registered a bit earlier so the devices are available when drivers register using initcall levels earlier than device_initcall(). A good example is platform devices needed by i2c-sh_mobile.c which registers a bit earlier using subsys_initcall(). Signed-off-by: Magnus Damm Signed-off-by: Paul Mundt diff --git a/arch/sh/kernel/cpu/sh2/setup-sh7619.c b/arch/sh/kernel/cpu/sh2/setup-sh7619.c index 1379873..8555c05 100644 --- a/arch/sh/kernel/cpu/sh2/setup-sh7619.c +++ b/arch/sh/kernel/cpu/sh2/setup-sh7619.c @@ -187,7 +187,7 @@ static int __init sh7619_devices_setup(void) return platform_add_devices(sh7619_devices, ARRAY_SIZE(sh7619_devices)); } -__initcall(sh7619_devices_setup); +arch_initcall(sh7619_devices_setup); void __init plat_irq_setup(void) { diff --git a/arch/sh/kernel/cpu/sh2a/setup-mxg.c b/arch/sh/kernel/cpu/sh2a/setup-mxg.c index 869c2da..b673764 100644 --- a/arch/sh/kernel/cpu/sh2a/setup-mxg.c +++ b/arch/sh/kernel/cpu/sh2a/setup-mxg.c @@ -238,7 +238,7 @@ static int __init mxg_devices_setup(void) return platform_add_devices(mxg_devices, ARRAY_SIZE(mxg_devices)); } -__initcall(mxg_devices_setup); +arch_initcall(mxg_devices_setup); void __init plat_irq_setup(void) { diff --git a/arch/sh/kernel/cpu/sh2a/setup-sh7201.c b/arch/sh/kernel/cpu/sh2a/setup-sh7201.c index d8febe1..fbde5b7 100644 --- a/arch/sh/kernel/cpu/sh2a/setup-sh7201.c +++ b/arch/sh/kernel/cpu/sh2a/setup-sh7201.c @@ -357,7 +357,7 @@ static int __init sh7201_devices_setup(void) return platform_add_devices(sh7201_devices, ARRAY_SIZE(sh7201_devices)); } -__initcall(sh7201_devices_setup); +arch_initcall(sh7201_devices_setup); void __init plat_irq_setup(void) { diff --git a/arch/sh/kernel/cpu/sh2a/setup-sh7203.c b/arch/sh/kernel/cpu/sh2a/setup-sh7203.c index 62e3039..d3fd536 100644 --- a/arch/sh/kernel/cpu/sh2a/setup-sh7203.c +++ b/arch/sh/kernel/cpu/sh2a/setup-sh7203.c @@ -367,7 +367,7 @@ static int __init sh7203_devices_setup(void) return platform_add_devices(sh7203_devices, ARRAY_SIZE(sh7203_devices)); } -__initcall(sh7203_devices_setup); +arch_initcall(sh7203_devices_setup); void __init plat_irq_setup(void) { diff --git a/arch/sh/kernel/cpu/sh2a/setup-sh7206.c b/arch/sh/kernel/cpu/sh2a/setup-sh7206.c index 3e6f3d7..a9ccc5e 100644 --- a/arch/sh/kernel/cpu/sh2a/setup-sh7206.c +++ b/arch/sh/kernel/cpu/sh2a/setup-sh7206.c @@ -338,7 +338,7 @@ static int __init sh7206_devices_setup(void) return platform_add_devices(sh7206_devices, ARRAY_SIZE(sh7206_devices)); } -__initcall(sh7206_devices_setup); +arch_initcall(sh7206_devices_setup); void __init plat_irq_setup(void) { diff --git a/arch/sh/kernel/cpu/sh3/setup-sh7705.c b/arch/sh/kernel/cpu/sh3/setup-sh7705.c index 88f742f..c231059 100644 --- a/arch/sh/kernel/cpu/sh3/setup-sh7705.c +++ b/arch/sh/kernel/cpu/sh3/setup-sh7705.c @@ -222,7 +222,7 @@ static int __init sh7705_devices_setup(void) return platform_add_devices(sh7705_devices, ARRAY_SIZE(sh7705_devices)); } -__initcall(sh7705_devices_setup); +arch_initcall(sh7705_devices_setup); static struct platform_device *sh7705_early_devices[] __initdata = { &tmu0_device, diff --git a/arch/sh/kernel/cpu/sh3/setup-sh770x.c b/arch/sh/kernel/cpu/sh3/setup-sh770x.c index c563067..347ab35 100644 --- a/arch/sh/kernel/cpu/sh3/setup-sh770x.c +++ b/arch/sh/kernel/cpu/sh3/setup-sh770x.c @@ -250,7 +250,7 @@ static int __init sh770x_devices_setup(void) return platform_add_devices(sh770x_devices, ARRAY_SIZE(sh770x_devices)); } -__initcall(sh770x_devices_setup); +arch_initcall(sh770x_devices_setup); static struct platform_device *sh770x_early_devices[] __initdata = { &tmu0_device, diff --git a/arch/sh/kernel/cpu/sh3/setup-sh7710.c b/arch/sh/kernel/cpu/sh3/setup-sh7710.c index efa76c8..717e90a 100644 --- a/arch/sh/kernel/cpu/sh3/setup-sh7710.c +++ b/arch/sh/kernel/cpu/sh3/setup-sh7710.c @@ -226,7 +226,7 @@ static int __init sh7710_devices_setup(void) return platform_add_devices(sh7710_devices, ARRAY_SIZE(sh7710_devices)); } -__initcall(sh7710_devices_setup); +arch_initcall(sh7710_devices_setup); static struct platform_device *sh7710_early_devices[] __initdata = { &tmu0_device, diff --git a/arch/sh/kernel/cpu/sh3/setup-sh7720.c b/arch/sh/kernel/cpu/sh3/setup-sh7720.c index 5b21077..74d8baa 100644 --- a/arch/sh/kernel/cpu/sh3/setup-sh7720.c +++ b/arch/sh/kernel/cpu/sh3/setup-sh7720.c @@ -388,7 +388,7 @@ static int __init sh7720_devices_setup(void) return platform_add_devices(sh7720_devices, ARRAY_SIZE(sh7720_devices)); } -__initcall(sh7720_devices_setup); +arch_initcall(sh7720_devices_setup); static struct platform_device *sh7720_early_devices[] __initdata = { &cmt0_device, diff --git a/arch/sh/kernel/cpu/sh4/setup-sh4-202.c b/arch/sh/kernel/cpu/sh4/setup-sh4-202.c index 6d088d1..de4827d 100644 --- a/arch/sh/kernel/cpu/sh4/setup-sh4-202.c +++ b/arch/sh/kernel/cpu/sh4/setup-sh4-202.c @@ -138,7 +138,7 @@ static int __init sh4202_devices_setup(void) return platform_add_devices(sh4202_devices, ARRAY_SIZE(sh4202_devices)); } -__initcall(sh4202_devices_setup); +arch_initcall(sh4202_devices_setup); static struct platform_device *sh4202_early_devices[] __initdata = { &tmu0_device, diff --git a/arch/sh/kernel/cpu/sh4/setup-sh7750.c b/arch/sh/kernel/cpu/sh4/setup-sh7750.c index 851672d..1b8b122 100644 --- a/arch/sh/kernel/cpu/sh4/setup-sh7750.c +++ b/arch/sh/kernel/cpu/sh4/setup-sh7750.c @@ -239,7 +239,7 @@ static int __init sh7750_devices_setup(void) return platform_add_devices(sh7750_devices, ARRAY_SIZE(sh7750_devices)); } -__initcall(sh7750_devices_setup); +arch_initcall(sh7750_devices_setup); static struct platform_device *sh7750_early_devices[] __initdata = { &tmu0_device, diff --git a/arch/sh/kernel/cpu/sh4/setup-sh7760.c b/arch/sh/kernel/cpu/sh4/setup-sh7760.c index 5b82251..7fbb7be 100644 --- a/arch/sh/kernel/cpu/sh4/setup-sh7760.c +++ b/arch/sh/kernel/cpu/sh4/setup-sh7760.c @@ -265,7 +265,7 @@ static int __init sh7760_devices_setup(void) return platform_add_devices(sh7760_devices, ARRAY_SIZE(sh7760_devices)); } -__initcall(sh7760_devices_setup); +arch_initcall(sh7760_devices_setup); static struct platform_device *sh7760_early_devices[] __initdata = { &tmu0_device, diff --git a/arch/sh/kernel/cpu/sh4a/setup-sh7343.c b/arch/sh/kernel/cpu/sh4a/setup-sh7343.c index 6307e08..ac4d567 100644 --- a/arch/sh/kernel/cpu/sh4a/setup-sh7343.c +++ b/arch/sh/kernel/cpu/sh4a/setup-sh7343.c @@ -325,7 +325,7 @@ static int __init sh7343_devices_setup(void) return platform_add_devices(sh7343_devices, ARRAY_SIZE(sh7343_devices)); } -__initcall(sh7343_devices_setup); +arch_initcall(sh7343_devices_setup); static struct platform_device *sh7343_early_devices[] __initdata = { &cmt_device, diff --git a/arch/sh/kernel/cpu/sh4a/setup-sh7366.c b/arch/sh/kernel/cpu/sh4a/setup-sh7366.c index c18f7d0..1a956b1 100644 --- a/arch/sh/kernel/cpu/sh4a/setup-sh7366.c +++ b/arch/sh/kernel/cpu/sh4a/setup-sh7366.c @@ -318,7 +318,7 @@ static int __init sh7366_devices_setup(void) return platform_add_devices(sh7366_devices, ARRAY_SIZE(sh7366_devices)); } -__initcall(sh7366_devices_setup); +arch_initcall(sh7366_devices_setup); static struct platform_device *sh7366_early_devices[] __initdata = { &cmt_device, diff --git a/arch/sh/kernel/cpu/sh4a/setup-sh7722.c b/arch/sh/kernel/cpu/sh4a/setup-sh7722.c index ea524a2..cda76eb 100644 --- a/arch/sh/kernel/cpu/sh4a/setup-sh7722.c +++ b/arch/sh/kernel/cpu/sh4a/setup-sh7722.c @@ -359,7 +359,7 @@ static int __init sh7722_devices_setup(void) return platform_add_devices(sh7722_devices, ARRAY_SIZE(sh7722_devices)); } -__initcall(sh7722_devices_setup); +arch_initcall(sh7722_devices_setup); static struct platform_device *sh7722_early_devices[] __initdata = { &cmt_device, diff --git a/arch/sh/kernel/cpu/sh4a/setup-sh7723.c b/arch/sh/kernel/cpu/sh4a/setup-sh7723.c index e1bb80b..b45dace 100644 --- a/arch/sh/kernel/cpu/sh4a/setup-sh7723.c +++ b/arch/sh/kernel/cpu/sh4a/setup-sh7723.c @@ -473,7 +473,7 @@ static int __init sh7723_devices_setup(void) return platform_add_devices(sh7723_devices, ARRAY_SIZE(sh7723_devices)); } -__initcall(sh7723_devices_setup); +arch_initcall(sh7723_devices_setup); static struct platform_device *sh7723_early_devices[] __initdata = { &cmt_device, diff --git a/arch/sh/kernel/cpu/sh4a/setup-sh7724.c b/arch/sh/kernel/cpu/sh4a/setup-sh7724.c index e5ac9eb..a04edaa 100644 --- a/arch/sh/kernel/cpu/sh4a/setup-sh7724.c +++ b/arch/sh/kernel/cpu/sh4a/setup-sh7724.c @@ -508,7 +508,7 @@ static int __init sh7724_devices_setup(void) return platform_add_devices(sh7724_devices, ARRAY_SIZE(sh7724_devices)); } -device_initcall(sh7724_devices_setup); +arch_initcall(sh7724_devices_setup); static struct platform_device *sh7724_early_devices[] __initdata = { &cmt_device, diff --git a/arch/sh/kernel/cpu/sh4a/setup-sh7763.c b/arch/sh/kernel/cpu/sh4a/setup-sh7763.c index f1e0c0d..4659fff 100644 --- a/arch/sh/kernel/cpu/sh4a/setup-sh7763.c +++ b/arch/sh/kernel/cpu/sh4a/setup-sh7763.c @@ -314,7 +314,7 @@ static int __init sh7763_devices_setup(void) return platform_add_devices(sh7763_devices, ARRAY_SIZE(sh7763_devices)); } -__initcall(sh7763_devices_setup); +arch_initcall(sh7763_devices_setup); static struct platform_device *sh7763_early_devices[] __initdata = { &tmu0_device, diff --git a/arch/sh/kernel/cpu/sh4a/setup-sh7770.c b/arch/sh/kernel/cpu/sh4a/setup-sh7770.c index 1e86209..eead08d 100644 --- a/arch/sh/kernel/cpu/sh4a/setup-sh7770.c +++ b/arch/sh/kernel/cpu/sh4a/setup-sh7770.c @@ -368,7 +368,7 @@ static int __init sh7770_devices_setup(void) return platform_add_devices(sh7770_devices, ARRAY_SIZE(sh7770_devices)); } -__initcall(sh7770_devices_setup); +arch_initcall(sh7770_devices_setup); static struct platform_device *sh7770_early_devices[] __initdata = { &tmu0_device, diff --git a/arch/sh/kernel/cpu/sh4a/setup-sh7780.c b/arch/sh/kernel/cpu/sh4a/setup-sh7780.c index 715e05b..2c901f4 100644 --- a/arch/sh/kernel/cpu/sh4a/setup-sh7780.c +++ b/arch/sh/kernel/cpu/sh4a/setup-sh7780.c @@ -256,7 +256,7 @@ static int __init sh7780_devices_setup(void) return platform_add_devices(sh7780_devices, ARRAY_SIZE(sh7780_devices)); } -__initcall(sh7780_devices_setup); +arch_initcall(sh7780_devices_setup); static struct platform_device *sh7780_early_devices[] __initdata = { &tmu0_device, diff --git a/arch/sh/kernel/cpu/sh4a/setup-sh7785.c b/arch/sh/kernel/cpu/sh4a/setup-sh7785.c index af56140..7f6c718 100644 --- a/arch/sh/kernel/cpu/sh4a/setup-sh7785.c +++ b/arch/sh/kernel/cpu/sh4a/setup-sh7785.c @@ -263,7 +263,7 @@ static int __init sh7785_devices_setup(void) return platform_add_devices(sh7785_devices, ARRAY_SIZE(sh7785_devices)); } -__initcall(sh7785_devices_setup); +arch_initcall(sh7785_devices_setup); static struct platform_device *sh7785_early_devices[] __initdata = { &tmu0_device, diff --git a/arch/sh/kernel/cpu/sh4a/setup-sh7786.c b/arch/sh/kernel/cpu/sh4a/setup-sh7786.c index b700494..0104a8e 100644 --- a/arch/sh/kernel/cpu/sh4a/setup-sh7786.c +++ b/arch/sh/kernel/cpu/sh4a/setup-sh7786.c @@ -547,7 +547,7 @@ static int __init sh7786_devices_setup(void) return platform_add_devices(sh7786_devices, ARRAY_SIZE(sh7786_devices)); } -device_initcall(sh7786_devices_setup); +arch_initcall(sh7786_devices_setup); void __init plat_early_device_setup(void) { diff --git a/arch/sh/kernel/cpu/sh4a/setup-shx3.c b/arch/sh/kernel/cpu/sh4a/setup-shx3.c index 53c65fd..07f0789 100644 --- a/arch/sh/kernel/cpu/sh4a/setup-shx3.c +++ b/arch/sh/kernel/cpu/sh4a/setup-shx3.c @@ -256,7 +256,7 @@ static int __init shx3_devices_setup(void) return platform_add_devices(shx3_devices, ARRAY_SIZE(shx3_devices)); } -__initcall(shx3_devices_setup); +arch_initcall(shx3_devices_setup); void __init plat_early_device_setup(void) { diff --git a/arch/sh/kernel/cpu/sh5/setup-sh5.c b/arch/sh/kernel/cpu/sh5/setup-sh5.c index f5ff1ac..6a0f82f 100644 --- a/arch/sh/kernel/cpu/sh5/setup-sh5.c +++ b/arch/sh/kernel/cpu/sh5/setup-sh5.c @@ -186,7 +186,7 @@ static int __init sh5_devices_setup(void) return platform_add_devices(sh5_devices, ARRAY_SIZE(sh5_devices)); } -__initcall(sh5_devices_setup); +arch_initcall(sh5_devices_setup); void __init plat_early_device_setup(void) { -- cgit v0.10.2 From ba3a17019181af5d6ab898760620c4e9916396c2 Mon Sep 17 00:00:00 2001 From: Magnus Damm Date: Thu, 13 Aug 2009 11:39:02 +0900 Subject: sh: fix i2c init order on Migo-R V2 Convert the Migo-R board code to register devices at arch_initcall() time instead of __initcall(). This fix unbreaks migor_ts touch screen driver support. Signed-off-by: Magnus Damm Signed-off-by: Paul Mundt diff --git a/arch/sh/boards/mach-migor/setup.c b/arch/sh/boards/mach-migor/setup.c index f70f464..f9b2e4d 100644 --- a/arch/sh/boards/mach-migor/setup.c +++ b/arch/sh/boards/mach-migor/setup.c @@ -608,7 +608,7 @@ static int __init migor_devices_setup(void) return platform_add_devices(migor_devices, ARRAY_SIZE(migor_devices)); } -__initcall(migor_devices_setup); +arch_initcall(migor_devices_setup); /* Return the board specific boot mode pin configuration */ static int migor_mode_pins(void) -- cgit v0.10.2 From dbefd606a3b3634799b625f4900336e61c89e868 Mon Sep 17 00:00:00 2001 From: Magnus Damm Date: Fri, 7 Aug 2009 03:52:18 +0000 Subject: sh: fix i2c init order on ap325rxa V2 Convert the AP325RXA board code to register devices at arch_initcall() time instead of device_initcall(). This fix unbreaks pcf8563 RTC driver support. Signed-off-by: Magnus Damm Signed-off-by: Paul Mundt diff --git a/arch/sh/boards/board-ap325rxa.c b/arch/sh/boards/board-ap325rxa.c index 7ffd1b43..b9c88cc 100644 --- a/arch/sh/boards/board-ap325rxa.c +++ b/arch/sh/boards/board-ap325rxa.c @@ -547,7 +547,7 @@ static int __init ap325rxa_devices_setup(void) return platform_add_devices(ap325rxa_devices, ARRAY_SIZE(ap325rxa_devices)); } -device_initcall(ap325rxa_devices_setup); +arch_initcall(ap325rxa_devices_setup); /* Return the board specific boot mode pin configuration */ static int ap325rxa_mode_pins(void) -- cgit v0.10.2 From 839d1624b9dcf31fdc02e47359043bb7bd71d6ca Mon Sep 17 00:00:00 2001 From: Francois Romieu Date: Wed, 12 Aug 2009 22:18:14 -0700 Subject: 8139cp: balance dma_map_single vs dma_unmap_single pair The driver always: 1. allocate cp->rx_buf_sz + NET_IP_ALIGN 2. map cp->rx_buf_sz Signed-off-by: Francois Romieu Signed-off-by: David S. Miller diff --git a/drivers/net/8139cp.c b/drivers/net/8139cp.c index 50efde1..d0dbbf3 100644 --- a/drivers/net/8139cp.c +++ b/drivers/net/8139cp.c @@ -515,7 +515,7 @@ rx_status_loop: dma_addr_t mapping; struct sk_buff *skb, *new_skb; struct cp_desc *desc; - unsigned buflen; + const unsigned buflen = cp->rx_buf_sz; skb = cp->rx_skb[rx_tail]; BUG_ON(!skb); @@ -549,8 +549,7 @@ rx_status_loop: pr_debug("%s: rx slot %d status 0x%x len %d\n", dev->name, rx_tail, status, len); - buflen = cp->rx_buf_sz + NET_IP_ALIGN; - new_skb = netdev_alloc_skb(dev, buflen); + new_skb = netdev_alloc_skb(dev, buflen + NET_IP_ALIGN); if (!new_skb) { dev->stats.rx_dropped++; goto rx_next; -- cgit v0.10.2 From 8f7a0dc51674ad0dd06155291b0aed60d655943c Mon Sep 17 00:00:00 2001 From: Arnaldo Carvalho de Melo Date: Wed, 12 Aug 2009 14:44:59 -0300 Subject: perf list: Fix large list output by using the pager When /sys/kernel/debug is mounted the list can be imense, so use the pager like the other tools. Signed-off-by: Arnaldo Carvalho de Melo Acked-by: Frederic Weisbecker Cc: Peter Zijlstra LKML-Reference: <20090812174459.GB3495@ghostprotocols.net> Signed-off-by: Ingo Molnar diff --git a/tools/perf/builtin-list.c b/tools/perf/builtin-list.c index f990fa8..d88c696 100644 --- a/tools/perf/builtin-list.c +++ b/tools/perf/builtin-list.c @@ -10,11 +10,12 @@ #include "perf.h" -#include "util/parse-options.h" #include "util/parse-events.h" +#include "util/cache.h" int cmd_list(int argc __used, const char **argv __used, const char *prefix __used) { + setup_pager(); print_events(); return 0; } -- cgit v0.10.2 From 28402971d869e26271b25301011f667d3a5640c3 Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Thu, 13 Aug 2009 10:13:22 +0200 Subject: perf_counter: Provide hw_perf_counter_setup_online() APIs Provide weak aliases for hw_perf_counter_setup_online(). This is used by the BTS patches (for v2.6.32), but it interacts with fixes so propagate this upstream. (it has no effect as of yet) Also export perf_counter_output() to architecture code. Cc: Peter Zijlstra Cc: Paul Mackerras Cc: Frederic Weisbecker LKML-Reference: Signed-off-by: Ingo Molnar diff --git a/include/linux/perf_counter.h b/include/linux/perf_counter.h index a9d823a..2b36afe 100644 --- a/include/linux/perf_counter.h +++ b/include/linux/perf_counter.h @@ -694,6 +694,8 @@ struct perf_sample_data { extern int perf_counter_overflow(struct perf_counter *counter, int nmi, struct perf_sample_data *data); +extern void perf_counter_output(struct perf_counter *counter, int nmi, + struct perf_sample_data *data); /* * Return 1 for a software counter, 0 for a hardware counter diff --git a/kernel/perf_counter.c b/kernel/perf_counter.c index b0b20a0..e26d2fc 100644 --- a/kernel/perf_counter.c +++ b/kernel/perf_counter.c @@ -88,6 +88,7 @@ void __weak hw_perf_disable(void) { barrier(); } void __weak hw_perf_enable(void) { barrier(); } void __weak hw_perf_counter_setup(int cpu) { barrier(); } +void __weak hw_perf_counter_setup_online(int cpu) { barrier(); } int __weak hw_perf_group_sched_in(struct perf_counter *group_leader, @@ -2630,7 +2631,7 @@ static u32 perf_counter_tid(struct perf_counter *counter, struct task_struct *p) return task_pid_nr_ns(p, counter->ns); } -static void perf_counter_output(struct perf_counter *counter, int nmi, +void perf_counter_output(struct perf_counter *counter, int nmi, struct perf_sample_data *data) { int ret; @@ -4592,6 +4593,11 @@ perf_cpu_notify(struct notifier_block *self, unsigned long action, void *hcpu) perf_counter_init_cpu(cpu); break; + case CPU_ONLINE: + case CPU_ONLINE_FROZEN: + hw_perf_counter_setup_online(cpu); + break; + case CPU_DOWN_PREPARE: case CPU_DOWN_PREPARE_FROZEN: perf_counter_exit_cpu(cpu); @@ -4616,6 +4622,8 @@ void __init perf_counter_init(void) { perf_cpu_notify(&perf_cpu_nb, (unsigned long)CPU_UP_PREPARE, (void *)(long)smp_processor_id()); + perf_cpu_notify(&perf_cpu_nb, (unsigned long)CPU_ONLINE, + (void *)(long)smp_processor_id()); register_cpu_notifier(&perf_cpu_nb); } -- cgit v0.10.2 From 3a9f131fb00b8ac5950a11ad1599e45edfb5ae44 Mon Sep 17 00:00:00 2001 From: Frederic Weisbecker Date: Thu, 13 Aug 2009 10:27:18 +0200 Subject: perf tools: Add a per tracepoint counter attribute to get raw sample Add a new flag field while opening a tracepoint perf counter: -e tracepoint_subsystem:tracepoint_name:flags This is intended to be generic although for now it only supports the r[e[c[o[r[d]]]]] flag: ./perf record -e workqueue:workqueue_insertion:record ./perf record -e workqueue:workqueue_insertion:r will have the same effect: enabling the raw samples record for the given tracepoint counter. In the future, we may want to support further flags, separated by commas. Signed-off-by: Frederic Weisbecker Cc: Peter Zijlstra Cc: Arnaldo Carvalho de Melo Cc: Mike Galbraith LKML-Reference: <1250152039-7284-1-git-send-email-fweisbec@gmail.com> Signed-off-by: Ingo Molnar diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c index de76008..78adc47 100644 --- a/tools/perf/builtin-record.c +++ b/tools/perf/builtin-record.c @@ -398,7 +398,7 @@ static void create_counter(int counter, int cpu, pid_t pid) PERF_FORMAT_TOTAL_TIME_RUNNING | PERF_FORMAT_ID; - attr->sample_type = PERF_SAMPLE_IP | PERF_SAMPLE_TID; + attr->sample_type |= PERF_SAMPLE_IP | PERF_SAMPLE_TID; if (freq) { attr->sample_type |= PERF_SAMPLE_PERIOD; diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c index 4858d83..0441784 100644 --- a/tools/perf/util/parse-events.c +++ b/tools/perf/util/parse-events.c @@ -379,6 +379,7 @@ static int parse_tracepoint_event(const char **strp, struct perf_counter_attr *attr) { const char *evt_name; + char *flags; char sys_name[MAX_EVENT_LENGTH]; char id_buf[4]; int fd; @@ -400,6 +401,15 @@ static int parse_tracepoint_event(const char **strp, strncpy(sys_name, *strp, sys_length); sys_name[sys_length] = '\0'; evt_name = evt_name + 1; + + flags = strchr(evt_name, ':'); + if (flags) { + *flags = '\0'; + flags++; + if (!strncmp(flags, "record", strlen(flags))) + attr->sample_type |= PERF_SAMPLE_RAW; + } + evt_length = strlen(evt_name); if (evt_length >= MAX_EVENT_LENGTH) return 0; -- cgit v0.10.2 From daac07b2e6b77f1bd44104aa2f0593e5505f27d4 Mon Sep 17 00:00:00 2001 From: Frederic Weisbecker Date: Thu, 13 Aug 2009 10:27:19 +0200 Subject: perf tools: Add a general option to enable raw sample records While we can enable the perf sample records per tracepoint counter, we may also want to enable this option for every tracepoint counters to open, so that we don't need to add a :record flag for all of them. Add the -R, --raw-samples options for this purpose. Signed-off-by: Frederic Weisbecker Cc: Peter Zijlstra Cc: Arnaldo Carvalho de Melo Cc: Mike Galbraith LKML-Reference: <1250152039-7284-2-git-send-email-fweisbec@gmail.com> Signed-off-by: Ingo Molnar diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c index 78adc47..3d051b9 100644 --- a/tools/perf/builtin-record.c +++ b/tools/perf/builtin-record.c @@ -34,6 +34,7 @@ static int output; static const char *output_name = "perf.data"; static int group = 0; static unsigned int realtime_prio = 0; +static int raw_samples = 0; static int system_wide = 0; static int profile_cpu = -1; static pid_t target_pid = -1; @@ -418,6 +419,8 @@ static void create_counter(int counter, int cpu, pid_t pid) if (call_graph) attr->sample_type |= PERF_SAMPLE_CALLCHAIN; + if (raw_samples) + attr->sample_type |= PERF_SAMPLE_RAW; attr->mmap = track; attr->comm = track; @@ -650,6 +653,8 @@ static const struct option options[] = { "record events on existing pid"), OPT_INTEGER('r', "realtime", &realtime_prio, "collect data with this RT SCHED_FIFO priority"), + OPT_BOOLEAN('R', "raw-samples", &raw_samples, + "collect raw sample records from all opened counters"), OPT_BOOLEAN('a', "all-cpus", &system_wide, "system-wide collection from all CPUs"), OPT_BOOLEAN('A', "append", &append_file, -- cgit v0.10.2 From 8fd101f20bdf771949a8f3a5a779877d09b2fb56 Mon Sep 17 00:00:00 2001 From: Arnaldo Carvalho de Melo Date: Wed, 12 Aug 2009 18:19:57 -0300 Subject: perf report: Don't show unresolved DSOs and symbols when -S/-d is used We're interested in just those symbols/DSOs, so filter out the unresolved ones. Signed-off-by: Arnaldo Carvalho de Melo Cc: Peter Zijlstra LKML-Reference: <20090812211957.GE3495@ghostprotocols.net> Signed-off-by: Ingo Molnar diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c index 23e1457..b53a60f 100644 --- a/tools/perf/builtin-report.c +++ b/tools/perf/builtin-report.c @@ -1590,10 +1590,11 @@ process_sample_event(event_t *event, unsigned long offset, unsigned long head) if (show & show_mask) { struct symbol *sym = resolve_symbol(thread, &map, &dso, &ip); - if (dso_list && dso && dso->name && !strlist__has_entry(dso_list, dso->name)) + if (dso_list && (!dso || !dso->name || + !strlist__has_entry(dso_list, dso->name))) return 0; - if (sym_list && sym && !strlist__has_entry(sym_list, sym->name)) + if (sym_list && (!sym || !strlist__has_entry(sym_list, sym->name))) return 0; if (hist_entry__add(thread, map, dso, sym, ip, chain, level, period)) { -- cgit v0.10.2 From bcfc2602e8541ac13b1def38e2591dca072cff7a Mon Sep 17 00:00:00 2001 From: Peter Zijlstra Date: Thu, 13 Aug 2009 09:51:55 +0200 Subject: perf_counter: Fix swcounter context invariance perf_swcounter_is_counting() uses a lock, which means we cannot use swcounters from NMI or when holding that particular lock, this is unintended. The below removes the lock, this opens up race window, but not worse than the swcounters already experience due to RCU traversal of the context in perf_swcounter_ctx_event(). This also fixes the hard lockups while opening a lockdep tracepoint counter. Signed-off-by: Peter Zijlstra Acked-by: Frederic Weisbecker Cc: Paul Mackerras Cc: stephane eranian Cc: Corey J Ashford LKML-Reference: <1250149915.10001.66.camel@twins> Signed-off-by: Ingo Molnar diff --git a/kernel/perf_counter.c b/kernel/perf_counter.c index e26d2fc..3dd4339 100644 --- a/kernel/perf_counter.c +++ b/kernel/perf_counter.c @@ -3444,40 +3444,32 @@ static void perf_swcounter_add(struct perf_counter *counter, u64 nr, static int perf_swcounter_is_counting(struct perf_counter *counter) { - struct perf_counter_context *ctx; - unsigned long flags; - int count; - + /* + * The counter is active, we're good! + */ if (counter->state == PERF_COUNTER_STATE_ACTIVE) return 1; + /* + * The counter is off/error, not counting. + */ if (counter->state != PERF_COUNTER_STATE_INACTIVE) return 0; /* - * If the counter is inactive, it could be just because - * its task is scheduled out, or because it's in a group - * which could not go on the PMU. We want to count in - * the first case but not the second. If the context is - * currently active then an inactive software counter must - * be the second case. If it's not currently active then - * we need to know whether the counter was active when the - * context was last active, which we can determine by - * comparing counter->tstamp_stopped with ctx->time. - * - * We are within an RCU read-side critical section, - * which protects the existence of *ctx. + * The counter is inactive, if the context is active + * we're part of a group that didn't make it on the 'pmu', + * not counting. */ - ctx = counter->ctx; - spin_lock_irqsave(&ctx->lock, flags); - count = 1; - /* Re-check state now we have the lock */ - if (counter->state < PERF_COUNTER_STATE_INACTIVE || - counter->ctx->is_active || - counter->tstamp_stopped < ctx->time) - count = 0; - spin_unlock_irqrestore(&ctx->lock, flags); - return count; + if (counter->ctx->is_active) + return 0; + + /* + * We're inactive and the context is too, this means the + * task is scheduled out, we're counting events that happen + * to us, like migration events. + */ + return 1; } static int perf_swcounter_match(struct perf_counter *counter, -- cgit v0.10.2 From 3dab77fb1bf89664bb1c9544607159dcab6f7d57 Mon Sep 17 00:00:00 2001 From: Peter Zijlstra Date: Thu, 13 Aug 2009 11:47:53 +0200 Subject: perf: Rework/fix the whole read vs group stuff Replace PERF_SAMPLE_GROUP with PERF_SAMPLE_READ and introduce PERF_FORMAT_GROUP to deal with group reads in a more generic way. This allows you to get group reads out of read() as well. Signed-off-by: Peter Zijlstra Cc: Corey J Ashford Cc: Paul Mackerras Cc: stephane eranian LKML-Reference: <20090813103655.117411814@chello.nl> Signed-off-by: Ingo Molnar diff --git a/include/linux/perf_counter.h b/include/linux/perf_counter.h index 2b36afe..b53f700 100644 --- a/include/linux/perf_counter.h +++ b/include/linux/perf_counter.h @@ -115,7 +115,7 @@ enum perf_counter_sample_format { PERF_SAMPLE_TID = 1U << 1, PERF_SAMPLE_TIME = 1U << 2, PERF_SAMPLE_ADDR = 1U << 3, - PERF_SAMPLE_GROUP = 1U << 4, + PERF_SAMPLE_READ = 1U << 4, PERF_SAMPLE_CALLCHAIN = 1U << 5, PERF_SAMPLE_ID = 1U << 6, PERF_SAMPLE_CPU = 1U << 7, @@ -127,16 +127,32 @@ enum perf_counter_sample_format { }; /* - * Bits that can be set in attr.read_format to request that - * reads on the counter should return the indicated quantities, - * in increasing order of bit value, after the counter value. + * The format of the data returned by read() on a perf counter fd, + * as specified by attr.read_format: + * + * struct read_format { + * { u64 value; + * { u64 time_enabled; } && PERF_FORMAT_ENABLED + * { u64 time_running; } && PERF_FORMAT_RUNNING + * { u64 id; } && PERF_FORMAT_ID + * } && !PERF_FORMAT_GROUP + * + * { u64 nr; + * { u64 time_enabled; } && PERF_FORMAT_ENABLED + * { u64 time_running; } && PERF_FORMAT_RUNNING + * { u64 value; + * { u64 id; } && PERF_FORMAT_ID + * } cntr[nr]; + * } && PERF_FORMAT_GROUP + * }; */ enum perf_counter_read_format { PERF_FORMAT_TOTAL_TIME_ENABLED = 1U << 0, PERF_FORMAT_TOTAL_TIME_RUNNING = 1U << 1, PERF_FORMAT_ID = 1U << 2, + PERF_FORMAT_GROUP = 1U << 3, - PERF_FORMAT_MAX = 1U << 3, /* non-ABI */ + PERF_FORMAT_MAX = 1U << 4, /* non-ABI */ }; #define PERF_ATTR_SIZE_VER0 64 /* sizeof first published struct */ @@ -343,10 +359,8 @@ enum perf_event_type { * struct { * struct perf_event_header header; * u32 pid, tid; - * u64 value; - * { u64 time_enabled; } && PERF_FORMAT_ENABLED - * { u64 time_running; } && PERF_FORMAT_RUNNING - * { u64 parent_id; } && PERF_FORMAT_ID + * + * struct read_format values; * }; */ PERF_EVENT_READ = 8, @@ -364,11 +378,22 @@ enum perf_event_type { * { u32 cpu, res; } && PERF_SAMPLE_CPU * { u64 period; } && PERF_SAMPLE_PERIOD * - * { u64 nr; - * { u64 id, val; } cnt[nr]; } && PERF_SAMPLE_GROUP + * { struct read_format values; } && PERF_SAMPLE_READ * * { u64 nr, * u64 ips[nr]; } && PERF_SAMPLE_CALLCHAIN + * + * # + * # The RAW record below is opaque data wrt the ABI + * # + * # That is, the ABI doesn't make any promises wrt to + * # the stability of its content, it may vary depending + * # on event, hardware, kernel version and phase of + * # the moon. + * # + * # In other words, PERF_SAMPLE_RAW contents are not an ABI. + * # + * * { u32 size; * char data[size];}&& PERF_SAMPLE_RAW * }; diff --git a/kernel/perf_counter.c b/kernel/perf_counter.c index 3dd4339..b8c6b97 100644 --- a/kernel/perf_counter.c +++ b/kernel/perf_counter.c @@ -1692,7 +1692,32 @@ static int perf_release(struct inode *inode, struct file *file) return 0; } -static u64 perf_counter_read_tree(struct perf_counter *counter) +static int perf_counter_read_size(struct perf_counter *counter) +{ + int entry = sizeof(u64); /* value */ + int size = 0; + int nr = 1; + + if (counter->attr.read_format & PERF_FORMAT_TOTAL_TIME_ENABLED) + size += sizeof(u64); + + if (counter->attr.read_format & PERF_FORMAT_TOTAL_TIME_RUNNING) + size += sizeof(u64); + + if (counter->attr.read_format & PERF_FORMAT_ID) + entry += sizeof(u64); + + if (counter->attr.read_format & PERF_FORMAT_GROUP) { + nr += counter->group_leader->nr_siblings; + size += sizeof(u64); + } + + size += entry * nr; + + return size; +} + +static u64 perf_counter_read_value(struct perf_counter *counter) { struct perf_counter *child; u64 total = 0; @@ -1704,14 +1729,96 @@ static u64 perf_counter_read_tree(struct perf_counter *counter) return total; } +static int perf_counter_read_entry(struct perf_counter *counter, + u64 read_format, char __user *buf) +{ + int n = 0, count = 0; + u64 values[2]; + + values[n++] = perf_counter_read_value(counter); + if (read_format & PERF_FORMAT_ID) + values[n++] = primary_counter_id(counter); + + count = n * sizeof(u64); + + if (copy_to_user(buf, values, count)) + return -EFAULT; + + return count; +} + +static int perf_counter_read_group(struct perf_counter *counter, + u64 read_format, char __user *buf) +{ + struct perf_counter *leader = counter->group_leader, *sub; + int n = 0, size = 0, err = -EFAULT; + u64 values[3]; + + values[n++] = 1 + leader->nr_siblings; + if (read_format & PERF_FORMAT_TOTAL_TIME_ENABLED) { + values[n++] = leader->total_time_enabled + + atomic64_read(&leader->child_total_time_enabled); + } + if (read_format & PERF_FORMAT_TOTAL_TIME_RUNNING) { + values[n++] = leader->total_time_running + + atomic64_read(&leader->child_total_time_running); + } + + size = n * sizeof(u64); + + if (copy_to_user(buf, values, size)) + return -EFAULT; + + err = perf_counter_read_entry(leader, read_format, buf + size); + if (err < 0) + return err; + + size += err; + + list_for_each_entry(sub, &leader->sibling_list, list_entry) { + err = perf_counter_read_entry(counter, read_format, + buf + size); + if (err < 0) + return err; + + size += err; + } + + return size; +} + +static int perf_counter_read_one(struct perf_counter *counter, + u64 read_format, char __user *buf) +{ + u64 values[4]; + int n = 0; + + values[n++] = perf_counter_read_value(counter); + if (read_format & PERF_FORMAT_TOTAL_TIME_ENABLED) { + values[n++] = counter->total_time_enabled + + atomic64_read(&counter->child_total_time_enabled); + } + if (read_format & PERF_FORMAT_TOTAL_TIME_RUNNING) { + values[n++] = counter->total_time_running + + atomic64_read(&counter->child_total_time_running); + } + if (read_format & PERF_FORMAT_ID) + values[n++] = primary_counter_id(counter); + + if (copy_to_user(buf, values, n * sizeof(u64))) + return -EFAULT; + + return n * sizeof(u64); +} + /* * Read the performance counter - simple non blocking version for now */ static ssize_t perf_read_hw(struct perf_counter *counter, char __user *buf, size_t count) { - u64 values[4]; - int n; + u64 read_format = counter->attr.read_format; + int ret; /* * Return end-of-file for a read on a counter that is in @@ -1721,28 +1828,18 @@ perf_read_hw(struct perf_counter *counter, char __user *buf, size_t count) if (counter->state == PERF_COUNTER_STATE_ERROR) return 0; + if (count < perf_counter_read_size(counter)) + return -ENOSPC; + WARN_ON_ONCE(counter->ctx->parent_ctx); mutex_lock(&counter->child_mutex); - values[0] = perf_counter_read_tree(counter); - n = 1; - if (counter->attr.read_format & PERF_FORMAT_TOTAL_TIME_ENABLED) - values[n++] = counter->total_time_enabled + - atomic64_read(&counter->child_total_time_enabled); - if (counter->attr.read_format & PERF_FORMAT_TOTAL_TIME_RUNNING) - values[n++] = counter->total_time_running + - atomic64_read(&counter->child_total_time_running); - if (counter->attr.read_format & PERF_FORMAT_ID) - values[n++] = primary_counter_id(counter); + if (read_format & PERF_FORMAT_GROUP) + ret = perf_counter_read_group(counter, read_format, buf); + else + ret = perf_counter_read_one(counter, read_format, buf); mutex_unlock(&counter->child_mutex); - if (count < n * sizeof(u64)) - return -EINVAL; - count = n * sizeof(u64); - - if (copy_to_user(buf, values, count)) - return -EFAULT; - - return count; + return ret; } static ssize_t @@ -2631,6 +2728,79 @@ static u32 perf_counter_tid(struct perf_counter *counter, struct task_struct *p) return task_pid_nr_ns(p, counter->ns); } +static void perf_output_read_one(struct perf_output_handle *handle, + struct perf_counter *counter) +{ + u64 read_format = counter->attr.read_format; + u64 values[4]; + int n = 0; + + values[n++] = atomic64_read(&counter->count); + if (read_format & PERF_FORMAT_TOTAL_TIME_ENABLED) { + values[n++] = counter->total_time_enabled + + atomic64_read(&counter->child_total_time_enabled); + } + if (read_format & PERF_FORMAT_TOTAL_TIME_RUNNING) { + values[n++] = counter->total_time_running + + atomic64_read(&counter->child_total_time_running); + } + if (read_format & PERF_FORMAT_ID) + values[n++] = primary_counter_id(counter); + + perf_output_copy(handle, values, n * sizeof(u64)); +} + +/* + * XXX PERF_FORMAT_GROUP vs inherited counters seems difficult. + */ +static void perf_output_read_group(struct perf_output_handle *handle, + struct perf_counter *counter) +{ + struct perf_counter *leader = counter->group_leader, *sub; + u64 read_format = counter->attr.read_format; + u64 values[5]; + int n = 0; + + values[n++] = 1 + leader->nr_siblings; + + if (read_format & PERF_FORMAT_TOTAL_TIME_ENABLED) + values[n++] = leader->total_time_enabled; + + if (read_format & PERF_FORMAT_TOTAL_TIME_RUNNING) + values[n++] = leader->total_time_running; + + if (leader != counter) + leader->pmu->read(leader); + + values[n++] = atomic64_read(&leader->count); + if (read_format & PERF_FORMAT_ID) + values[n++] = primary_counter_id(leader); + + perf_output_copy(handle, values, n * sizeof(u64)); + + list_for_each_entry(sub, &leader->sibling_list, list_entry) { + n = 0; + + if (sub != counter) + sub->pmu->read(sub); + + values[n++] = atomic64_read(&sub->count); + if (read_format & PERF_FORMAT_ID) + values[n++] = primary_counter_id(sub); + + perf_output_copy(handle, values, n * sizeof(u64)); + } +} + +static void perf_output_read(struct perf_output_handle *handle, + struct perf_counter *counter) +{ + if (counter->attr.read_format & PERF_FORMAT_GROUP) + perf_output_read_group(handle, counter); + else + perf_output_read_one(handle, counter); +} + void perf_counter_output(struct perf_counter *counter, int nmi, struct perf_sample_data *data) { @@ -2642,10 +2812,6 @@ void perf_counter_output(struct perf_counter *counter, int nmi, struct { u32 pid, tid; } tid_entry; - struct { - u64 id; - u64 counter; - } group_entry; struct perf_callchain_entry *callchain = NULL; int callchain_size = 0; u64 time; @@ -2700,10 +2866,8 @@ void perf_counter_output(struct perf_counter *counter, int nmi, if (sample_type & PERF_SAMPLE_PERIOD) header.size += sizeof(u64); - if (sample_type & PERF_SAMPLE_GROUP) { - header.size += sizeof(u64) + - counter->nr_siblings * sizeof(group_entry); - } + if (sample_type & PERF_SAMPLE_READ) + header.size += perf_counter_read_size(counter); if (sample_type & PERF_SAMPLE_CALLCHAIN) { callchain = perf_callchain(data->regs); @@ -2760,26 +2924,8 @@ void perf_counter_output(struct perf_counter *counter, int nmi, if (sample_type & PERF_SAMPLE_PERIOD) perf_output_put(&handle, data->period); - /* - * XXX PERF_SAMPLE_GROUP vs inherited counters seems difficult. - */ - if (sample_type & PERF_SAMPLE_GROUP) { - struct perf_counter *leader, *sub; - u64 nr = counter->nr_siblings; - - perf_output_put(&handle, nr); - - leader = counter->group_leader; - list_for_each_entry(sub, &leader->sibling_list, list_entry) { - if (sub != counter) - sub->pmu->read(sub); - - group_entry.id = primary_counter_id(sub); - group_entry.counter = atomic64_read(&sub->count); - - perf_output_put(&handle, group_entry); - } - } + if (sample_type & PERF_SAMPLE_READ) + perf_output_read(&handle, counter); if (sample_type & PERF_SAMPLE_CALLCHAIN) { if (callchain) @@ -2818,8 +2964,6 @@ struct perf_read_event { u32 pid; u32 tid; - u64 value; - u64 format[3]; }; static void @@ -2831,34 +2975,20 @@ perf_counter_read_event(struct perf_counter *counter, .header = { .type = PERF_EVENT_READ, .misc = 0, - .size = sizeof(event) - sizeof(event.format), + .size = sizeof(event) + perf_counter_read_size(counter), }, .pid = perf_counter_pid(counter, task), .tid = perf_counter_tid(counter, task), - .value = atomic64_read(&counter->count), }; - int ret, i = 0; - - if (counter->attr.read_format & PERF_FORMAT_TOTAL_TIME_ENABLED) { - event.header.size += sizeof(u64); - event.format[i++] = counter->total_time_enabled; - } - - if (counter->attr.read_format & PERF_FORMAT_TOTAL_TIME_RUNNING) { - event.header.size += sizeof(u64); - event.format[i++] = counter->total_time_running; - } - - if (counter->attr.read_format & PERF_FORMAT_ID) { - event.header.size += sizeof(u64); - event.format[i++] = primary_counter_id(counter); - } + int ret; ret = perf_output_begin(&handle, counter, event.header.size, 0, 0); if (ret) return; - perf_output_copy(&handle, &event, event.header.size); + perf_output_put(&handle, event); + perf_output_read(&handle, counter); + perf_output_end(&handle); } @@ -3921,9 +4051,9 @@ perf_counter_alloc(struct perf_counter_attr *attr, atomic64_set(&hwc->period_left, hwc->sample_period); /* - * we currently do not support PERF_SAMPLE_GROUP on inherited counters + * we currently do not support PERF_FORMAT_GROUP on inherited counters */ - if (attr->inherit && (attr->sample_type & PERF_SAMPLE_GROUP)) + if (attr->inherit && (attr->read_format & PERF_FORMAT_GROUP)) goto done; switch (attr->type) { -- cgit v0.10.2 From 970892a9031a5dc7217bd394fb9d89fa75a4a7bc Mon Sep 17 00:00:00 2001 From: Peter Zijlstra Date: Thu, 13 Aug 2009 11:47:54 +0200 Subject: perf_counter: Fix an ipi-deadlock perf_pending_counter() is called from IRQ context and will call perf_counter_disable(), however perf_counter_disable() uses smp_call_function_single() which doesn't fancy being used with IRQs disabled due to IPI deadlocks. Fix this by making it use the local __perf_counter_disable() call and teaching the counter_sched_out() code about pending disables as well. This should cover the case where a counter migrates before the pending queue gets processed. Signed-off-by: Peter Zijlstra Cc: Corey J Ashford Cc: Paul Mackerras Cc: stephane eranian LKML-Reference: <20090813103655.244097721@chello.nl> Signed-off-by: Ingo Molnar diff --git a/kernel/perf_counter.c b/kernel/perf_counter.c index b8c6b97..3f841be 100644 --- a/kernel/perf_counter.c +++ b/kernel/perf_counter.c @@ -307,6 +307,10 @@ counter_sched_out(struct perf_counter *counter, return; counter->state = PERF_COUNTER_STATE_INACTIVE; + if (counter->pending_disable) { + counter->pending_disable = 0; + counter->state = PERF_COUNTER_STATE_OFF; + } counter->tstamp_stopped = ctx->time; counter->pmu->disable(counter); counter->oncpu = -1; @@ -2343,7 +2347,7 @@ static void perf_pending_counter(struct perf_pending_entry *entry) if (counter->pending_disable) { counter->pending_disable = 0; - perf_counter_disable(counter); + __perf_counter_disable(counter); } if (counter->pending_wakeup) { -- cgit v0.10.2 From 94d5d1b2d891f1fd5205f978246b7864d998b25c Mon Sep 17 00:00:00 2001 From: Peter Zijlstra Date: Thu, 13 Aug 2009 16:14:42 +0200 Subject: perf_counter: Report the cloning task as parent on perf_counter_fork() A bug in (9f498cc: perf_counter: Full task tracing) makes profiling multi-threaded apps it go belly up. [ output as: (PID:TID):(PPID:PTID) ] # ./perf report -D | grep FORK 0x4b0 [0x18]: PERF_EVENT_FORK: (3237:3237):(3236:3236) 0xa10 [0x18]: PERF_EVENT_FORK: (3237:3238):(3236:3236) 0xa70 [0x18]: PERF_EVENT_FORK: (3237:3239):(3236:3236) 0xad0 [0x18]: PERF_EVENT_FORK: (3237:3240):(3236:3236) 0xb18 [0x18]: PERF_EVENT_FORK: (3237:3241):(3236:3236) Shows us that the test (27d028d perf report: Update for the new FORK/EXIT events) in builtin-report.c: /* * A thread clone will have the same PID for both * parent and child. */ if (thread == parent) return 0; Will clearly fail. The problem is that perf_counter_fork() reports the actual parent, instead of the cloning thread. Fixing that (with the below patch), yields: # ./perf report -D | grep FORK 0x4c8 [0x18]: PERF_EVENT_FORK: (1590:1590):(1589:1589) 0xbd8 [0x18]: PERF_EVENT_FORK: (1590:1591):(1590:1590) 0xc80 [0x18]: PERF_EVENT_FORK: (1590:1592):(1590:1590) 0x3338 [0x18]: PERF_EVENT_FORK: (1590:1593):(1590:1590) 0x66b0 [0x18]: PERF_EVENT_FORK: (1590:1594):(1590:1590) Which both makes more sense and doesn't confuse perf report anymore. Reported-by: Pekka Enberg Signed-off-by: Peter Zijlstra Cc: Arnaldo Carvalho de Melo Cc: paulus@samba.org Cc: Anton Blanchard Cc: Arjan van de Ven LKML-Reference: <1250172882.5241.62.camel@twins> Signed-off-by: Ingo Molnar diff --git a/kernel/perf_counter.c b/kernel/perf_counter.c index 3f841be..534e20d 100644 --- a/kernel/perf_counter.c +++ b/kernel/perf_counter.c @@ -3028,10 +3028,10 @@ static void perf_counter_task_output(struct perf_counter *counter, return; task_event->event.pid = perf_counter_pid(counter, task); - task_event->event.ppid = perf_counter_pid(counter, task->real_parent); + task_event->event.ppid = perf_counter_pid(counter, current); task_event->event.tid = perf_counter_tid(counter, task); - task_event->event.ptid = perf_counter_tid(counter, task->real_parent); + task_event->event.ptid = perf_counter_tid(counter, current); perf_output_put(&handle, task_event->event); perf_output_end(&handle); -- cgit v0.10.2 From e694958388c50148389b0e9b9e9e8945cf0f1b98 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Thu, 13 Aug 2009 08:28:36 -0700 Subject: Make sock_sendpage() use kernel_sendpage() kernel_sendpage() does the proper default case handling for when the socket doesn't have a native sendpage implementation. Now, arguably this might be something that we could instead solve by just specifying that all protocols should do it themselves at the protocol level, but we really only care about the common protocols. Does anybody really care about sendpage on something like Appletalk? Not likely. Acked-by: David S. Miller Acked-by: Julien TINNES Acked-by: Tavis Ormandy Cc: stable@kernel.org Signed-off-by: Linus Torvalds diff --git a/net/socket.c b/net/socket.c index 791d71a..6d47165 100644 --- a/net/socket.c +++ b/net/socket.c @@ -736,7 +736,7 @@ static ssize_t sock_sendpage(struct file *file, struct page *page, if (more) flags |= MSG_MORE; - return sock->ops->sendpage(sock, page, offset, size, flags); + return kernel_sendpage(sock, page, offset, size, flags); } static ssize_t sock_splice_read(struct file *file, loff_t *ppos, -- cgit v0.10.2 From 416fbdff2137e8d8cc8f23f517bee3a26b11526f Mon Sep 17 00:00:00 2001 From: "Luis R. Rodriguez" Date: Tue, 11 Aug 2009 13:10:33 -0700 Subject: mac80211: fix panic when splicing unprepared TIDs We splice skbs from the pending queue for a TID onto the local pending queue when tearing down a block ack request. This is not necessary unless we actually have received a request to start a block ack request (rate control, for example). If we never received that request we should not be splicing the tid pending queue as it would be null, causing a panic. Not sure yet how exactly we allowed through a call when the tid state does not have at least HT_ADDBA_REQUESTED_MSK set, that will require some further review as it is not quite obvious. For more information see the bug report: http://bugzilla.kernel.org/show_bug.cgi?id=13922 This fixes this oops: BUG: unable to handle kernel NULL pointer dereference at 00000030 IP: [] ieee80211_agg_splice_packets+0x40/0xc0 [mac80211] *pdpt = 0000000002d1e001 *pde = 0000000000000000 Thread overran stack, or stack corrupted Oops: 0000 [#1] SMP last sysfs file: /sys/module/aes_generic/initstate Modules linked in: Pid: 0, comm: swapper Not tainted (2.6.31-rc5-wl #2) Dell DV051 EIP: 0060:[] EFLAGS: 00010292 CPU: 0 EIP is at ieee80211_agg_splice_packets+0x40/0xc0 [mac80211] EAX: 00000030 EBX: 0000004c ECX: 00000003 EDX: 00000000 ESI: c1c98000 EDI: f745a1c0 EBP: c076be58 ESP: c076be38 DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0068 Process swapper (pid: 0, ti=c076a000 task=c0709160 task.ti=c076a000) Stack: Call Trace: [] ? ieee80211_stop_tx_ba_cb+0xab/0x150 [mac80211] [] ? ieee80211_tasklet_handler+0xce/0x110 [mac80211] [] ? net_rx_action+0xef/0x1d0 [] ? tasklet_action+0x58/0xc0 [] ? __do_softirq+0xc2/0x190 [] ? handle_IRQ_event+0x58/0x140 [] ? ack_apic_level+0x7e/0x270 [] ? do_softirq+0x3d/0x40 [] ? irq_exit+0x65/0x90 [] ? do_IRQ+0x4f/0xc0 [] ? irq_exit+0x7d/0x90 [] ? smp_apic_timer_interrupt+0x57/0x90 [] ? common_interrupt+0x29/0x30 [] ? mwait_idle+0xbe/0x100 [] ? cpu_idle+0x52/0x90 [] ? rest_init+0x55/0x60 [] ? start_kernel+0x315/0x37d [] ? unknown_bootoption+0x0/0x1f9 [] ? i386_start_kernel+0x79/0x81 Code: EIP: [] ieee80211_agg_splice_packets+0x40/0xc0 [mac80211] SS:ESP 0068:c076be38 CR2: 0000000000000030 Cc: stable@kernel.org Testedy-by: Jack Lau Signed-off-by: Luis R. Rodriguez Signed-off-by: John W. Linville diff --git a/net/mac80211/agg-tx.c b/net/mac80211/agg-tx.c index 9e5762a..a24e598 100644 --- a/net/mac80211/agg-tx.c +++ b/net/mac80211/agg-tx.c @@ -381,6 +381,14 @@ static void ieee80211_agg_splice_packets(struct ieee80211_local *local, &local->hw, queue, IEEE80211_QUEUE_STOP_REASON_AGGREGATION); + if (!(sta->ampdu_mlme.tid_state_tx[tid] & HT_ADDBA_REQUESTED_MSK)) + return; + + if (WARN(!sta->ampdu_mlme.tid_tx[tid], + "TID %d gone but expected when splicing aggregates from" + "the pending queue\n", tid)) + return; + if (!skb_queue_empty(&sta->ampdu_mlme.tid_tx[tid]->pending)) { spin_lock_irqsave(&local->queue_stop_reason_lock, flags); /* mark queue as pending, it is stopped already */ -- cgit v0.10.2 From 2d860ad76f4ee4d2eba0fe3797c8d7cdce432cc0 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Thu, 13 Aug 2009 13:05:10 -0700 Subject: genirq: prevent wakeup of freed irq thread free_irq() can remove an irqaction while the corresponding interrupt is in progress, but free_irq() sets action->thread to NULL unconditionally, which might lead to a NULL pointer dereference in handle_IRQ_event() when the hard interrupt context tries to wake up the handler thread. Prevent this by moving the thread stop after synchronize_irq(). No need to set action->thread to NULL either as action is going to be freed anyway. This fixes a boot crash reported against preempt-rt which uses the mainline irq threads code to implement full irq threading. [ tglx: removed local irqthread variable ] Signed-off-by: Linus Torvalds Signed-off-by: Thomas Gleixner diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c index 61c679d..d222515 100644 --- a/kernel/irq/manage.c +++ b/kernel/irq/manage.c @@ -761,7 +761,6 @@ static struct irqaction *__free_irq(unsigned int irq, void *dev_id) { struct irq_desc *desc = irq_to_desc(irq); struct irqaction *action, **action_ptr; - struct task_struct *irqthread; unsigned long flags; WARN(in_interrupt(), "Trying to free IRQ %d from IRQ context!\n", irq); @@ -809,9 +808,6 @@ static struct irqaction *__free_irq(unsigned int irq, void *dev_id) desc->chip->disable(irq); } - irqthread = action->thread; - action->thread = NULL; - spin_unlock_irqrestore(&desc->lock, flags); unregister_handler_proc(irq, action); @@ -819,12 +815,6 @@ static struct irqaction *__free_irq(unsigned int irq, void *dev_id) /* Make sure it's not being used on another CPU: */ synchronize_irq(irq); - if (irqthread) { - if (!test_bit(IRQTF_DIED, &action->thread_flags)) - kthread_stop(irqthread); - put_task_struct(irqthread); - } - #ifdef CONFIG_DEBUG_SHIRQ /* * It's a shared IRQ -- the driver ought to be prepared for an IRQ @@ -840,6 +830,13 @@ static struct irqaction *__free_irq(unsigned int irq, void *dev_id) local_irq_restore(flags); } #endif + + if (action->thread) { + if (!test_bit(IRQTF_DIED, &action->thread_flags)) + kthread_stop(action->thread); + put_task_struct(action->thread); + } + return action; } -- cgit v0.10.2 From 15052c9e85bf0cdadcb69eb89623bf12bad8b4f8 Mon Sep 17 00:00:00 2001 From: "Kashyap, Desai" Date: Fri, 7 Aug 2009 19:33:17 +0530 Subject: [SCSI] mpt2sas: Introduced check for enclosure_handle to avoid crash Kernel panic is seen because of enclosure_handle received from FW is zero. Check is introduced before calling mpt2sas_config_get_enclosure_pg0. Signed-off-by: Kashyap Desai Signed-off-by: James Bottomley diff --git a/drivers/scsi/mpt2sas/mpt2sas_scsih.c b/drivers/scsi/mpt2sas/mpt2sas_scsih.c index 2a01a5f..b1326bf 100644 --- a/drivers/scsi/mpt2sas/mpt2sas_scsih.c +++ b/drivers/scsi/mpt2sas/mpt2sas_scsih.c @@ -3663,12 +3663,11 @@ _scsih_add_device(struct MPT2SAS_ADAPTER *ioc, u16 handle, u8 phy_num, u8 is_pd) sas_device->hidden_raid_component = is_pd; /* get enclosure_logical_id */ - if (!(mpt2sas_config_get_enclosure_pg0(ioc, &mpi_reply, &enclosure_pg0, - MPI2_SAS_ENCLOS_PGAD_FORM_HANDLE, - sas_device->enclosure_handle))) { + if (sas_device->enclosure_handle && !(mpt2sas_config_get_enclosure_pg0( + ioc, &mpi_reply, &enclosure_pg0, MPI2_SAS_ENCLOS_PGAD_FORM_HANDLE, + sas_device->enclosure_handle))) sas_device->enclosure_logical_id = le64_to_cpu(enclosure_pg0.EnclosureLogicalID); - } /* get device name */ sas_device->device_name = le64_to_cpu(sas_device_pg0.DeviceName); -- cgit v0.10.2 From 20f5895d55d9281830bfb7819c5c5b70b05297a6 Mon Sep 17 00:00:00 2001 From: "Kashyap, Desai" Date: Fri, 7 Aug 2009 19:34:26 +0530 Subject: [SCSI] mpt2sas: Expander fix oops saying "Already part of another port" Kernel panic is seen because driver did not tear down the port which should be dnoe using mpt2sas_transport_port_remove(). without this fix When expander is added back we would oops inside sas_port_add_phy. Signed-off-by: Kashyap Desai Signed-off-by: James Bottomley diff --git a/drivers/scsi/mpt2sas/mpt2sas_scsih.c b/drivers/scsi/mpt2sas/mpt2sas_scsih.c index b1326bf..918445e 100644 --- a/drivers/scsi/mpt2sas/mpt2sas_scsih.c +++ b/drivers/scsi/mpt2sas/mpt2sas_scsih.c @@ -3426,7 +3426,7 @@ _scsih_expander_add(struct MPT2SAS_ADAPTER *ioc, u16 handle) __le64 sas_address; int i; unsigned long flags; - struct _sas_port *mpt2sas_port; + struct _sas_port *mpt2sas_port = NULL; int rc = 0; if (!handle) @@ -3518,12 +3518,20 @@ _scsih_expander_add(struct MPT2SAS_ADAPTER *ioc, u16 handle) &expander_pg1, i, handle))) { printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n", ioc->name, __FILE__, __LINE__, __func__); - continue; + rc = -1; + goto out_fail; } sas_expander->phy[i].handle = handle; sas_expander->phy[i].phy_id = i; - mpt2sas_transport_add_expander_phy(ioc, &sas_expander->phy[i], - expander_pg1, sas_expander->parent_dev); + + if ((mpt2sas_transport_add_expander_phy(ioc, + &sas_expander->phy[i], expander_pg1, + sas_expander->parent_dev))) { + printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n", + ioc->name, __FILE__, __LINE__, __func__); + rc = -1; + goto out_fail; + } } if (sas_expander->enclosure_handle) { @@ -3540,8 +3548,9 @@ _scsih_expander_add(struct MPT2SAS_ADAPTER *ioc, u16 handle) out_fail: - if (sas_expander) - kfree(sas_expander->phy); + if (mpt2sas_port) + mpt2sas_transport_port_remove(ioc, sas_expander->sas_address, + sas_expander->parent_handle); kfree(sas_expander); return rc; } -- cgit v0.10.2 From 62727a7ba43c0abf2673e3877079c136a9721792 Mon Sep 17 00:00:00 2001 From: "Kashyap, Desai" Date: Fri, 7 Aug 2009 19:35:18 +0530 Subject: [SCSI] mpt2sas: Raid 10 Value is showing as Raid 1E in /va/log/messages When a volume is activated, the driver will recieve a pair of ir config change events to remove the foreign volume, then add the native. In the process of the removal event, the hidden raid componet is removed from the parent.When the disks is added back, the adding of the port fails becuase there is no instance of the device in its parent. To fix this issue, the driver needs to call mpt2sas_transport_update_links() prior to calling _scsih_add_device. In addition, we added sanity checks on volume add and removal to ignore events for foreign volumes. Signed-off-by: Kashyap Desai Signed-off-by: James Bottomley diff --git a/drivers/scsi/mpt2sas/mpt2sas_scsih.c b/drivers/scsi/mpt2sas/mpt2sas_scsih.c index 918445e..22a9542 100644 --- a/drivers/scsi/mpt2sas/mpt2sas_scsih.c +++ b/drivers/scsi/mpt2sas/mpt2sas_scsih.c @@ -4258,12 +4258,6 @@ _scsih_sas_volume_add(struct MPT2SAS_ADAPTER *ioc, u16 handle = le16_to_cpu(element->VolDevHandle); int rc; -#if 0 /* RAID_HACKS */ - if (le32_to_cpu(event_data->Flags) & - MPI2_EVENT_IR_CHANGE_FLAGS_FOREIGN_CONFIG) - return; -#endif - mpt2sas_config_get_volume_wwid(ioc, handle, &wwid); if (!wwid) { printk(MPT2SAS_ERR_FMT @@ -4318,12 +4312,6 @@ _scsih_sas_volume_delete(struct MPT2SAS_ADAPTER *ioc, unsigned long flags; struct MPT2SAS_TARGET *sas_target_priv_data; -#if 0 /* RAID_HACKS */ - if (le32_to_cpu(event_data->Flags) & - MPI2_EVENT_IR_CHANGE_FLAGS_FOREIGN_CONFIG) - return; -#endif - spin_lock_irqsave(&ioc->raid_device_lock, flags); raid_device = _scsih_raid_device_find_by_handle(ioc, handle); spin_unlock_irqrestore(&ioc->raid_device_lock, flags); @@ -4436,14 +4424,38 @@ _scsih_sas_pd_add(struct MPT2SAS_ADAPTER *ioc, struct _sas_device *sas_device; unsigned long flags; u16 handle = le16_to_cpu(element->PhysDiskDevHandle); + Mpi2ConfigReply_t mpi_reply; + Mpi2SasDevicePage0_t sas_device_pg0; + u32 ioc_status; spin_lock_irqsave(&ioc->sas_device_lock, flags); sas_device = _scsih_sas_device_find_by_handle(ioc, handle); spin_unlock_irqrestore(&ioc->sas_device_lock, flags); - if (sas_device) + if (sas_device) { sas_device->hidden_raid_component = 1; - else - _scsih_add_device(ioc, handle, 0, 1); + return; + } + + if ((mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0, + MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, handle))) { + printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n", + ioc->name, __FILE__, __LINE__, __func__); + return; + } + + ioc_status = le16_to_cpu(mpi_reply.IOCStatus) & + MPI2_IOCSTATUS_MASK; + if (ioc_status != MPI2_IOCSTATUS_SUCCESS) { + printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n", + ioc->name, __FILE__, __LINE__, __func__); + return; + } + + _scsih_link_change(ioc, + le16_to_cpu(sas_device_pg0.ParentDevHandle), + handle, sas_device_pg0.PhyNum, MPI2_SAS_NEG_LINK_RATE_1_5); + + _scsih_add_device(ioc, handle, 0, 1); } #ifdef CONFIG_SCSI_MPT2SAS_LOGGING @@ -4543,12 +4555,15 @@ _scsih_sas_ir_config_change_event(struct MPT2SAS_ADAPTER *ioc, u8 VF_ID, { Mpi2EventIrConfigElement_t *element; int i; + u8 foreign_config; #ifdef CONFIG_SCSI_MPT2SAS_LOGGING if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK) _scsih_sas_ir_config_change_event_debug(ioc, event_data); #endif + foreign_config = (le32_to_cpu(event_data->Flags) & + MPI2_EVENT_IR_CHANGE_FLAGS_FOREIGN_CONFIG) ? 1 : 0; element = (Mpi2EventIrConfigElement_t *)&event_data->ConfigElement[0]; for (i = 0; i < event_data->NumElements; i++, element++) { @@ -4556,11 +4571,13 @@ _scsih_sas_ir_config_change_event(struct MPT2SAS_ADAPTER *ioc, u8 VF_ID, switch (element->ReasonCode) { case MPI2_EVENT_IR_CHANGE_RC_VOLUME_CREATED: case MPI2_EVENT_IR_CHANGE_RC_ADDED: - _scsih_sas_volume_add(ioc, element); + if (!foreign_config) + _scsih_sas_volume_add(ioc, element); break; case MPI2_EVENT_IR_CHANGE_RC_VOLUME_DELETED: case MPI2_EVENT_IR_CHANGE_RC_REMOVED: - _scsih_sas_volume_delete(ioc, element); + if (!foreign_config) + _scsih_sas_volume_delete(ioc, element); break; case MPI2_EVENT_IR_CHANGE_RC_PD_CREATED: _scsih_sas_pd_hide(ioc, element); @@ -4679,6 +4696,9 @@ _scsih_sas_ir_physical_disk_event(struct MPT2SAS_ADAPTER *ioc, u8 VF_ID, u32 state; struct _sas_device *sas_device; unsigned long flags; + Mpi2ConfigReply_t mpi_reply; + Mpi2SasDevicePage0_t sas_device_pg0; + u32 ioc_status; if (event_data->ReasonCode != MPI2_EVENT_IR_PHYSDISK_RC_STATE_CHANGED) return; @@ -4695,22 +4715,40 @@ _scsih_sas_ir_physical_disk_event(struct MPT2SAS_ADAPTER *ioc, u8 VF_ID, spin_unlock_irqrestore(&ioc->sas_device_lock, flags); switch (state) { -#if 0 - case MPI2_RAID_PD_STATE_OFFLINE: - if (sas_device) - _scsih_remove_device(ioc, handle); - break; -#endif case MPI2_RAID_PD_STATE_ONLINE: case MPI2_RAID_PD_STATE_DEGRADED: case MPI2_RAID_PD_STATE_REBUILDING: case MPI2_RAID_PD_STATE_OPTIMAL: - if (sas_device) + if (sas_device) { sas_device->hidden_raid_component = 1; - else - _scsih_add_device(ioc, handle, 0, 1); + return; + } + + if ((mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply, + &sas_device_pg0, MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, + handle))) { + printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n", + ioc->name, __FILE__, __LINE__, __func__); + return; + } + + ioc_status = le16_to_cpu(mpi_reply.IOCStatus) & + MPI2_IOCSTATUS_MASK; + if (ioc_status != MPI2_IOCSTATUS_SUCCESS) { + printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n", + ioc->name, __FILE__, __LINE__, __func__); + return; + } + + _scsih_link_change(ioc, + le16_to_cpu(sas_device_pg0.ParentDevHandle), + handle, sas_device_pg0.PhyNum, MPI2_SAS_NEG_LINK_RATE_1_5); + + _scsih_add_device(ioc, handle, 0, 1); + break; + case MPI2_RAID_PD_STATE_OFFLINE: case MPI2_RAID_PD_STATE_NOT_CONFIGURED: case MPI2_RAID_PD_STATE_NOT_COMPATIBLE: case MPI2_RAID_PD_STATE_HOT_SPARE: -- cgit v0.10.2 From be9e8cd75ce8d94ae4aab721fdcc337fa78a9090 Mon Sep 17 00:00:00 2001 From: "Kashyap, Desai" Date: Fri, 7 Aug 2009 19:36:43 +0530 Subject: [SCSI] mpt2sas: Excessive log info causes sas iounit page time out Inhibit 0x3117 loginfos - during cable pull, there are too many printks going to the syslog, this is have impact on how fast the interrupt routine can handle keeping up with command completions; this was the root cause to the config pages timeouts. Signed-off-by: Kashyap Desai Signed-off-by: James Bottomley diff --git a/drivers/scsi/mpt2sas/mpt2sas_base.c b/drivers/scsi/mpt2sas/mpt2sas_base.c index f3da592..ed9965e 100644 --- a/drivers/scsi/mpt2sas/mpt2sas_base.c +++ b/drivers/scsi/mpt2sas/mpt2sas_base.c @@ -440,6 +440,10 @@ _base_sas_log_info(struct MPT2SAS_ADAPTER *ioc , u32 log_info) if (sas_loginfo.dw.bus_type != 3 /*SAS*/) return; + /* each nexus loss loginfo */ + if (log_info == 0x31170000) + return; + /* eat the loginfos associated with task aborts */ if (ioc->ignore_loginfos && (log_info == 30050000 || log_info == 0x31140000 || log_info == 0x31130000)) diff --git a/drivers/scsi/mpt2sas/mpt2sas_scsih.c b/drivers/scsi/mpt2sas/mpt2sas_scsih.c index 22a9542..25c8d82 100644 --- a/drivers/scsi/mpt2sas/mpt2sas_scsih.c +++ b/drivers/scsi/mpt2sas/mpt2sas_scsih.c @@ -2767,6 +2767,10 @@ _scsih_scsi_ioc_info(struct MPT2SAS_ADAPTER *ioc, struct scsi_cmnd *scmd, char *desc_ioc_state = NULL; char *desc_scsi_status = NULL; char *desc_scsi_state = ioc->tmp_string; + u32 log_info = le32_to_cpu(mpi_reply->IOCLogInfo); + + if (log_info == 0x31170000) + return; switch (ioc_status) { case MPI2_IOCSTATUS_SUCCESS: -- cgit v0.10.2 From 6bd4e1e4d6023f4da069fd68729c502cc4e6dfd0 Mon Sep 17 00:00:00 2001 From: "Kashyap, Desai" Date: Fri, 7 Aug 2009 19:37:14 +0530 Subject: [SCSI] mpt2sas: fix infinite loop inside config request This restriction is introduced just to avoid loop of config_request. Retry must be limited so we have restricted config request to maximum 2 times. Signed-off-by: Kashyap Desai Signed-off-by: James Bottomley diff --git a/drivers/scsi/mpt2sas/mpt2sas_config.c b/drivers/scsi/mpt2sas/mpt2sas_config.c index 58cfb97..1c6658c 100644 --- a/drivers/scsi/mpt2sas/mpt2sas_config.c +++ b/drivers/scsi/mpt2sas/mpt2sas_config.c @@ -247,6 +247,12 @@ _config_request(struct MPT2SAS_ADAPTER *ioc, Mpi2ConfigRequest_t retry_count = 0; retry_config: + if (retry_count) { + if (retry_count > 2) /* attempt only 2 retries */ + return -EFAULT; + printk(MPT2SAS_INFO_FMT "%s: attempting retry (%d)\n", + ioc->name, __func__, retry_count); + } wait_state_count = 0; ioc_state = mpt2sas_base_get_iocstate(ioc, 1); while (ioc_state != MPI2_IOC_STATE_OPERATIONAL) { -- cgit v0.10.2 From e4750c989f732555fca86dd73d488c79972362db Mon Sep 17 00:00:00 2001 From: "Kashyap, Desai" Date: Fri, 7 Aug 2009 19:37:59 +0530 Subject: [SCSI] mpt2sas: fix crash due to Watchdog is active while OS in standby mode Fix oops ocurring at hibernation time. This oops was due to the firmware fault watchdog timer still running after we freed resources. To fix the issue we need to terminate the watchdog timer at hibernation time. Signed-off-by: Kashyap Desai Signed-off-by: James Bottomley diff --git a/drivers/scsi/mpt2sas/mpt2sas_base.c b/drivers/scsi/mpt2sas/mpt2sas_base.c index ed9965e..c29c4f9 100644 --- a/drivers/scsi/mpt2sas/mpt2sas_base.c +++ b/drivers/scsi/mpt2sas/mpt2sas_base.c @@ -119,6 +119,64 @@ _base_fault_reset_work(struct work_struct *work) spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags); } +/** + * mpt2sas_base_start_watchdog - start the fault_reset_work_q + * @ioc: pointer to scsi command object + * Context: sleep. + * + * Return nothing. + */ +void +mpt2sas_base_start_watchdog(struct MPT2SAS_ADAPTER *ioc) +{ + unsigned long flags; + + if (ioc->fault_reset_work_q) + return; + + /* initialize fault polling */ + INIT_DELAYED_WORK(&ioc->fault_reset_work, _base_fault_reset_work); + snprintf(ioc->fault_reset_work_q_name, + sizeof(ioc->fault_reset_work_q_name), "poll_%d_status", ioc->id); + ioc->fault_reset_work_q = + create_singlethread_workqueue(ioc->fault_reset_work_q_name); + if (!ioc->fault_reset_work_q) { + printk(MPT2SAS_ERR_FMT "%s: failed (line=%d)\n", + ioc->name, __func__, __LINE__); + return; + } + spin_lock_irqsave(&ioc->ioc_reset_in_progress_lock, flags); + if (ioc->fault_reset_work_q) + queue_delayed_work(ioc->fault_reset_work_q, + &ioc->fault_reset_work, + msecs_to_jiffies(FAULT_POLLING_INTERVAL)); + spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags); +} + +/** + * mpt2sas_base_stop_watchdog - stop the fault_reset_work_q + * @ioc: pointer to scsi command object + * Context: sleep. + * + * Return nothing. + */ +void +mpt2sas_base_stop_watchdog(struct MPT2SAS_ADAPTER *ioc) +{ + unsigned long flags; + struct workqueue_struct *wq; + + spin_lock_irqsave(&ioc->ioc_reset_in_progress_lock, flags); + wq = ioc->fault_reset_work_q; + ioc->fault_reset_work_q = NULL; + spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags); + if (wq) { + if (!cancel_delayed_work(&ioc->fault_reset_work)) + flush_workqueue(wq); + destroy_workqueue(wq); + } +} + #ifdef CONFIG_SCSI_MPT2SAS_LOGGING /** * _base_sas_ioc_info - verbose translation of the ioc status @@ -3209,7 +3267,6 @@ int mpt2sas_base_attach(struct MPT2SAS_ADAPTER *ioc) { int r, i; - unsigned long flags; dinitprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s\n", ioc->name, __func__)); @@ -3292,23 +3349,7 @@ mpt2sas_base_attach(struct MPT2SAS_ADAPTER *ioc) if (r) goto out_free_resources; - /* initialize fault polling */ - INIT_DELAYED_WORK(&ioc->fault_reset_work, _base_fault_reset_work); - snprintf(ioc->fault_reset_work_q_name, - sizeof(ioc->fault_reset_work_q_name), "poll_%d_status", ioc->id); - ioc->fault_reset_work_q = - create_singlethread_workqueue(ioc->fault_reset_work_q_name); - if (!ioc->fault_reset_work_q) { - printk(MPT2SAS_ERR_FMT "%s: failed (line=%d)\n", - ioc->name, __func__, __LINE__); - goto out_free_resources; - } - spin_lock_irqsave(&ioc->ioc_reset_in_progress_lock, flags); - if (ioc->fault_reset_work_q) - queue_delayed_work(ioc->fault_reset_work_q, - &ioc->fault_reset_work, - msecs_to_jiffies(FAULT_POLLING_INTERVAL)); - spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags); + mpt2sas_base_start_watchdog(ioc); return 0; out_free_resources: @@ -3341,20 +3382,11 @@ mpt2sas_base_attach(struct MPT2SAS_ADAPTER *ioc) void mpt2sas_base_detach(struct MPT2SAS_ADAPTER *ioc) { - unsigned long flags; - struct workqueue_struct *wq; dexitprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s\n", ioc->name, __func__)); - spin_lock_irqsave(&ioc->ioc_reset_in_progress_lock, flags); - wq = ioc->fault_reset_work_q; - ioc->fault_reset_work_q = NULL; - spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags); - if (!cancel_delayed_work(&ioc->fault_reset_work)) - flush_workqueue(wq); - destroy_workqueue(wq); - + mpt2sas_base_stop_watchdog(ioc); mpt2sas_base_free_resources(ioc); _base_release_memory_pools(ioc); kfree(ioc->pfacts); diff --git a/drivers/scsi/mpt2sas/mpt2sas_base.h b/drivers/scsi/mpt2sas/mpt2sas_base.h index 286c185..a299357 100644 --- a/drivers/scsi/mpt2sas/mpt2sas_base.h +++ b/drivers/scsi/mpt2sas/mpt2sas_base.h @@ -673,6 +673,8 @@ typedef void (*MPT_CALLBACK)(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 VF_ID, /* base shared API */ extern struct list_head mpt2sas_ioc_list; +void mpt2sas_base_start_watchdog(struct MPT2SAS_ADAPTER *ioc); +void mpt2sas_base_stop_watchdog(struct MPT2SAS_ADAPTER *ioc); int mpt2sas_base_attach(struct MPT2SAS_ADAPTER *ioc); void mpt2sas_base_detach(struct MPT2SAS_ADAPTER *ioc); diff --git a/drivers/scsi/mpt2sas/mpt2sas_scsih.c b/drivers/scsi/mpt2sas/mpt2sas_scsih.c index 25c8d82..2e9a444 100644 --- a/drivers/scsi/mpt2sas/mpt2sas_scsih.c +++ b/drivers/scsi/mpt2sas/mpt2sas_scsih.c @@ -5824,6 +5824,7 @@ _scsih_suspend(struct pci_dev *pdev, pm_message_t state) struct MPT2SAS_ADAPTER *ioc = shost_priv(shost); u32 device_state; + mpt2sas_base_stop_watchdog(ioc); flush_scheduled_work(); scsi_block_requests(shost); device_state = pci_choose_state(pdev, state); @@ -5866,6 +5867,7 @@ _scsih_resume(struct pci_dev *pdev) mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP, SOFT_RESET); scsi_unblock_requests(shost); + mpt2sas_base_start_watchdog(ioc); return 0; } #endif /* CONFIG_PM */ -- cgit v0.10.2 From fcfe6392d18283df3c561b5ef59c330d485ff8ca Mon Sep 17 00:00:00 2001 From: "Kashyap, Desai" Date: Fri, 7 Aug 2009 19:38:48 +0530 Subject: [SCSI] mpt2sas: fix oops because drv data points to NULL on resume from hibernate Fix another ocurring when the system resumes. This oops was due to driver setting the pci drvdata to NULL on the prior hibernation. Becuase it was set to NULL, upon resmume we assume the pci drvdata is non-zero, and we oops. To fix the ooops, we don't set pci drvdata to NULL at hibernation time. Signed-off-by: Kashyap Desai Signed-off-by: James Bottomley diff --git a/drivers/scsi/mpt2sas/mpt2sas_base.c b/drivers/scsi/mpt2sas/mpt2sas_base.c index c29c4f9..35a1386 100644 --- a/drivers/scsi/mpt2sas/mpt2sas_base.c +++ b/drivers/scsi/mpt2sas/mpt2sas_base.c @@ -1171,7 +1171,6 @@ mpt2sas_base_map_resources(struct MPT2SAS_ADAPTER *ioc) } } - pci_set_drvdata(pdev, ioc->shost); _base_mask_interrupts(ioc); r = _base_enable_msix(ioc); if (r) @@ -1194,7 +1193,6 @@ mpt2sas_base_map_resources(struct MPT2SAS_ADAPTER *ioc) ioc->pci_irq = -1; pci_release_selected_regions(ioc->pdev, ioc->bars); pci_disable_device(pdev); - pci_set_drvdata(pdev, NULL); return r; } @@ -3253,7 +3251,6 @@ mpt2sas_base_free_resources(struct MPT2SAS_ADAPTER *ioc) ioc->chip_phys = 0; pci_release_selected_regions(ioc->pdev, ioc->bars); pci_disable_device(pdev); - pci_set_drvdata(pdev, NULL); return; } @@ -3275,6 +3272,7 @@ mpt2sas_base_attach(struct MPT2SAS_ADAPTER *ioc) if (r) return r; + pci_set_drvdata(ioc->pdev, ioc->shost); r = _base_make_ioc_ready(ioc, CAN_SLEEP, SOFT_RESET); if (r) goto out_free_resources; @@ -3357,6 +3355,7 @@ mpt2sas_base_attach(struct MPT2SAS_ADAPTER *ioc) ioc->remove_host = 1; mpt2sas_base_free_resources(ioc); _base_release_memory_pools(ioc); + pci_set_drvdata(ioc->pdev, NULL); kfree(ioc->tm_cmds.reply); kfree(ioc->transport_cmds.reply); kfree(ioc->config_cmds.reply); @@ -3389,6 +3388,7 @@ mpt2sas_base_detach(struct MPT2SAS_ADAPTER *ioc) mpt2sas_base_stop_watchdog(ioc); mpt2sas_base_free_resources(ioc); _base_release_memory_pools(ioc); + pci_set_drvdata(ioc->pdev, NULL); kfree(ioc->pfacts); kfree(ioc->ctl_cmds.reply); kfree(ioc->base_cmds.reply); -- cgit v0.10.2 From f9b14c9183b250cf128c7d2341e6b9bdbbcd8f35 Mon Sep 17 00:00:00 2001 From: "Kashyap, Desai" Date: Fri, 7 Aug 2009 19:39:59 +0530 Subject: [SCSI] mpt2sas: Bump driver version 01.100.04.00 Bump version to 01.100.04.00 Signed-off-by: Kashyap Desai Signed-off-by: James Bottomley diff --git a/drivers/scsi/mpt2sas/mpt2sas_base.h b/drivers/scsi/mpt2sas/mpt2sas_base.h index a299357..acdcff1 100644 --- a/drivers/scsi/mpt2sas/mpt2sas_base.h +++ b/drivers/scsi/mpt2sas/mpt2sas_base.h @@ -69,10 +69,10 @@ #define MPT2SAS_DRIVER_NAME "mpt2sas" #define MPT2SAS_AUTHOR "LSI Corporation " #define MPT2SAS_DESCRIPTION "LSI MPT Fusion SAS 2.0 Device Driver" -#define MPT2SAS_DRIVER_VERSION "01.100.03.00" +#define MPT2SAS_DRIVER_VERSION "01.100.04.00" #define MPT2SAS_MAJOR_VERSION 01 #define MPT2SAS_MINOR_VERSION 100 -#define MPT2SAS_BUILD_VERSION 03 +#define MPT2SAS_BUILD_VERSION 04 #define MPT2SAS_RELEASE_VERSION 00 /* -- cgit v0.10.2 From 64f1607ffbbc772685733ea63e6f7f4183df1b16 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Thu, 13 Aug 2009 15:43:34 -0700 Subject: Linux 2.6.31-rc6 diff --git a/Makefile b/Makefile index 0d46615..abcfa85 100644 --- a/Makefile +++ b/Makefile @@ -1,7 +1,7 @@ VERSION = 2 PATCHLEVEL = 6 SUBLEVEL = 31 -EXTRAVERSION = -rc5 +EXTRAVERSION = -rc6 NAME = Man-Eating Seals of Antiquity # *DOCUMENTATION* -- cgit v0.10.2 From 993e6f2fd487e2acddd711f79cf48f3420731382 Mon Sep 17 00:00:00 2001 From: Oliver Hartkopp Date: Tue, 11 Aug 2009 02:41:24 +0000 Subject: can: fix oops caused by wrong rtnl newlink usage For 'real' hardware CAN devices the netlink interface is used to set CAN specific communication parameters. Real CAN hardware can not be created with the ip tool ... The invocation of 'ip link add type can' lead to an oops as the standard rtnl newlink function was called: http://bugzilla.kernel.org/show_bug.cgi?id=13954 This patch adds a private newlink function for the CAN device driver interface that unconditionally returns -EOPNOTSUPP. Signed-off-by: Oliver Hartkopp Reported-by: Dmitry Eremin-Solenikov CC: Patrick McHardy CC: Wolfgang Grandegger Signed-off-by: David S. Miller diff --git a/drivers/net/can/dev.c b/drivers/net/can/dev.c index 9e4283a..e1a4f82 100644 --- a/drivers/net/can/dev.c +++ b/drivers/net/can/dev.c @@ -611,11 +611,18 @@ nla_put_failure: return -EMSGSIZE; } +static int can_newlink(struct net_device *dev, + struct nlattr *tb[], struct nlattr *data[]) +{ + return -EOPNOTSUPP; +} + static struct rtnl_link_ops can_link_ops __read_mostly = { .kind = "can", .maxtype = IFLA_CAN_MAX, .policy = can_policy, .setup = can_setup, + .newlink = can_newlink, .changelink = can_changelink, .fill_info = can_fill_info, .fill_xstats = can_fill_xstats, -- cgit v0.10.2 From 237057ad3fe5644fa471be474a160de2fc2e5870 Mon Sep 17 00:00:00 2001 From: Don Skidmore Date: Tue, 11 Aug 2009 13:18:14 +0000 Subject: ixgbe: fix issues setting rx-usecs with legacy interrupts Currently setting rx-usecs when the interface is in legacy interrupt mode it is not immediate. We were only setting EITR for each MSIx vector and since this count would be zero for legacy mode it wasn't set until after a reset. This patch corrects that by checking what mode we are in and then setting EITR accordingly. Signed-off-by: Don Skidmore Signed-off-by: Jeff Kirsher Signed-off-by: David S. Miller diff --git a/drivers/net/ixgbe/ixgbe_ethtool.c b/drivers/net/ixgbe/ixgbe_ethtool.c index 79144e9..dff8dfa 100644 --- a/drivers/net/ixgbe/ixgbe_ethtool.c +++ b/drivers/net/ixgbe/ixgbe_ethtool.c @@ -1948,6 +1948,7 @@ static int ixgbe_set_coalesce(struct net_device *netdev, struct ethtool_coalesce *ec) { struct ixgbe_adapter *adapter = netdev_priv(netdev); + struct ixgbe_q_vector *q_vector; int i; if (ec->tx_max_coalesced_frames_irq) @@ -1982,14 +1983,24 @@ static int ixgbe_set_coalesce(struct net_device *netdev, adapter->itr_setting = 0; } - for (i = 0; i < adapter->num_msix_vectors - NON_Q_VECTORS; i++) { - struct ixgbe_q_vector *q_vector = adapter->q_vector[i]; - if (q_vector->txr_count && !q_vector->rxr_count) - /* tx vector gets half the rate */ - q_vector->eitr = (adapter->eitr_param >> 1); - else - /* rx only or mixed */ - q_vector->eitr = adapter->eitr_param; + /* MSI/MSIx Interrupt Mode */ + if (adapter->flags & + (IXGBE_FLAG_MSIX_ENABLED | IXGBE_FLAG_MSI_ENABLED)) { + int num_vectors = adapter->num_msix_vectors - NON_Q_VECTORS; + for (i = 0; i < num_vectors; i++) { + q_vector = adapter->q_vector[i]; + if (q_vector->txr_count && !q_vector->rxr_count) + /* tx vector gets half the rate */ + q_vector->eitr = (adapter->eitr_param >> 1); + else + /* rx only or mixed */ + q_vector->eitr = adapter->eitr_param; + ixgbe_write_eitr(q_vector); + } + /* Legacy Interrupt Mode */ + } else { + q_vector = adapter->q_vector[0]; + q_vector->eitr = adapter->eitr_param; ixgbe_write_eitr(q_vector); } -- cgit v0.10.2 From e424fa9d6a0add1a9b812b07e3607daaa5b9e53d Mon Sep 17 00:00:00 2001 From: Amit Kumar Salecha Date: Thu, 13 Aug 2009 07:03:00 +0000 Subject: netxen: remove netxen workqueue o Remove private workqueue in the driver, move all scheduled tasks to keventd workqueues. This makes ports (interfaces) of same / different NIC boards independent, in terms of their link watchdog and reset tasks. o Move quick checks for link status and temperature in timer callback, schedule watchdog task only if link status changed or temperature reached critical threshold. This also fixes deadlock when thermal panic occurs, watchdog work was flushing workqueue that it was sitting on. Signed-off-by: Amit Kumar Salecha Signed-off-by: Dhananjay Phadke Signed-off-by: David S. Miller diff --git a/drivers/net/netxen/netxen_nic.h b/drivers/net/netxen/netxen_nic.h index f86e050..a9c1fcc 100644 --- a/drivers/net/netxen/netxen_nic.h +++ b/drivers/net/netxen/netxen_nic.h @@ -1254,7 +1254,7 @@ struct netxen_adapter { u8 mc_enabled; u8 max_mc_count; u8 rss_supported; - u8 resv2; + u8 link_changed; u32 resv3; u8 has_link_events; diff --git a/drivers/net/netxen/netxen_nic_main.c b/drivers/net/netxen/netxen_nic_main.c index 70c05c4..d24e1cb 100644 --- a/drivers/net/netxen/netxen_nic_main.c +++ b/drivers/net/netxen/netxen_nic_main.c @@ -94,10 +94,6 @@ static struct pci_device_id netxen_pci_tbl[] __devinitdata = { MODULE_DEVICE_TABLE(pci, netxen_pci_tbl); -static struct workqueue_struct *netxen_workq; -#define SCHEDULE_WORK(tp) queue_work(netxen_workq, tp) -#define FLUSH_SCHEDULED_WORK() flush_workqueue(netxen_workq) - static void netxen_watchdog(unsigned long); static uint32_t crb_cmd_producer[4] = { @@ -880,7 +876,6 @@ netxen_nic_down(struct netxen_adapter *adapter, struct net_device *netdev) spin_unlock(&adapter->tx_clean_lock); del_timer_sync(&adapter->watchdog_timer); - FLUSH_SCHEDULED_WORK(); } @@ -1177,6 +1172,9 @@ static void __devexit netxen_nic_remove(struct pci_dev *pdev) unregister_netdev(netdev); + cancel_work_sync(&adapter->watchdog_task); + cancel_work_sync(&adapter->tx_timeout_task); + if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC) { netxen_nic_detach(adapter); } @@ -1211,6 +1209,9 @@ netxen_nic_suspend(struct pci_dev *pdev, pm_message_t state) if (netif_running(netdev)) netxen_nic_down(adapter, netdev); + cancel_work_sync(&adapter->watchdog_task); + cancel_work_sync(&adapter->tx_timeout_task); + if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC) netxen_nic_detach(adapter); @@ -1549,11 +1550,6 @@ static int netxen_nic_check_temp(struct netxen_adapter *adapter) "%s: Device temperature %d degrees C exceeds" " maximum allowed. Hardware has been shut down.\n", netdev->name, temp_val); - - netif_device_detach(netdev); - netxen_nic_down(adapter, netdev); - netxen_nic_detach(adapter); - rv = 1; } else if (temp_state == NX_TEMP_WARN) { if (adapter->temp == NX_TEMP_NORMAL) { @@ -1587,10 +1583,7 @@ void netxen_advert_link_change(struct netxen_adapter *adapter, int linkup) netif_carrier_off(netdev); netif_stop_queue(netdev); } - - if (!adapter->has_link_events) - netxen_nic_set_link_parameters(adapter); - + adapter->link_changed = !adapter->has_link_events; } else if (!adapter->ahw.linkup && linkup) { printk(KERN_INFO "%s: %s NIC Link is up\n", netxen_nic_driver_name, netdev->name); @@ -1599,9 +1592,7 @@ void netxen_advert_link_change(struct netxen_adapter *adapter, int linkup) netif_carrier_on(netdev); netif_wake_queue(netdev); } - - if (!adapter->has_link_events) - netxen_nic_set_link_parameters(adapter); + adapter->link_changed = !adapter->has_link_events; } } @@ -1628,11 +1619,36 @@ static void netxen_nic_handle_phy_intr(struct netxen_adapter *adapter) netxen_advert_link_change(adapter, linkup); } +static void netxen_nic_thermal_shutdown(struct netxen_adapter *adapter) +{ + struct net_device *netdev = adapter->netdev; + + netif_device_detach(netdev); + netxen_nic_down(adapter, netdev); + netxen_nic_detach(adapter); +} + static void netxen_watchdog(unsigned long v) { struct netxen_adapter *adapter = (struct netxen_adapter *)v; - SCHEDULE_WORK(&adapter->watchdog_task); + if (netxen_nic_check_temp(adapter)) + goto do_sched; + + if (!adapter->has_link_events) { + netxen_nic_handle_phy_intr(adapter); + + if (adapter->link_changed) + goto do_sched; + } + + if (netif_running(adapter->netdev)) + mod_timer(&adapter->watchdog_timer, jiffies + 2 * HZ); + + return; + +do_sched: + schedule_work(&adapter->watchdog_task); } void netxen_watchdog_task(struct work_struct *work) @@ -1640,11 +1656,13 @@ void netxen_watchdog_task(struct work_struct *work) struct netxen_adapter *adapter = container_of(work, struct netxen_adapter, watchdog_task); - if (netxen_nic_check_temp(adapter)) + if (adapter->temp == NX_TEMP_PANIC) { + netxen_nic_thermal_shutdown(adapter); return; + } - if (!adapter->has_link_events) - netxen_nic_handle_phy_intr(adapter); + if (adapter->link_changed) + netxen_nic_set_link_parameters(adapter); if (netif_running(adapter->netdev)) mod_timer(&adapter->watchdog_timer, jiffies + 2 * HZ); @@ -1652,9 +1670,8 @@ void netxen_watchdog_task(struct work_struct *work) static void netxen_tx_timeout(struct net_device *netdev) { - struct netxen_adapter *adapter = (struct netxen_adapter *) - netdev_priv(netdev); - SCHEDULE_WORK(&adapter->tx_timeout_task); + struct netxen_adapter *adapter = netdev_priv(netdev); + schedule_work(&adapter->tx_timeout_task); } static void netxen_tx_timeout_task(struct work_struct *work) @@ -1811,9 +1828,6 @@ static int __init netxen_init_module(void) { printk(KERN_INFO "%s\n", netxen_nic_driver_string); - if ((netxen_workq = create_singlethread_workqueue("netxen")) == NULL) - return -ENOMEM; - return pci_register_driver(&netxen_driver); } @@ -1822,7 +1836,6 @@ module_init(netxen_init_module); static void __exit netxen_exit_module(void) { pci_unregister_driver(&netxen_driver); - destroy_workqueue(netxen_workq); } module_exit(netxen_exit_module); -- cgit v0.10.2 From 232e7d68d50c9ac3a55d716e5ae215ecd1e043b9 Mon Sep 17 00:00:00 2001 From: Dhananjay Phadke Date: Thu, 13 Aug 2009 07:03:01 +0000 Subject: netxen: free napi resources during detach o Defer napi resouce allocation to device attach. o Free napi resources and delete napi during detach. This ensures right behavior across firmware reset. Signed-off-by: Dhananjay Phadke Signed-off-by: David S. Miller diff --git a/drivers/net/netxen/netxen_nic_init.c b/drivers/net/netxen/netxen_nic_init.c index 7acf204..5d3343e 100644 --- a/drivers/net/netxen/netxen_nic_init.c +++ b/drivers/net/netxen/netxen_nic_init.c @@ -184,13 +184,6 @@ void netxen_free_sw_resources(struct netxen_adapter *adapter) kfree(recv_ctx->rds_rings); skip_rds: - if (recv_ctx->sds_rings == NULL) - goto skip_sds; - - for(ring = 0; ring < adapter->max_sds_rings; ring++) - recv_ctx->sds_rings[ring].consumer = 0; - -skip_sds: if (adapter->tx_ring == NULL) return; diff --git a/drivers/net/netxen/netxen_nic_main.c b/drivers/net/netxen/netxen_nic_main.c index d24e1cb..28f270f 100644 --- a/drivers/net/netxen/netxen_nic_main.c +++ b/drivers/net/netxen/netxen_nic_main.c @@ -167,6 +167,8 @@ netxen_free_sds_rings(struct netxen_recv_context *recv_ctx) { if (recv_ctx->sds_rings != NULL) kfree(recv_ctx->sds_rings); + + recv_ctx->sds_rings = NULL; } static int @@ -189,6 +191,21 @@ netxen_napi_add(struct netxen_adapter *adapter, struct net_device *netdev) } static void +netxen_napi_del(struct netxen_adapter *adapter) +{ + int ring; + struct nx_host_sds_ring *sds_ring; + struct netxen_recv_context *recv_ctx = &adapter->recv_ctx; + + for (ring = 0; ring < adapter->max_sds_rings; ring++) { + sds_ring = &recv_ctx->sds_rings[ring]; + netif_napi_del(&sds_ring->napi); + } + + netxen_free_sds_rings(&adapter->recv_ctx); +} + +static void netxen_napi_enable(struct netxen_adapter *adapter) { int ring; @@ -889,10 +906,12 @@ netxen_nic_attach(struct netxen_adapter *adapter) struct nx_host_tx_ring *tx_ring; err = netxen_init_firmware(adapter); - if (err != 0) { - printk(KERN_ERR "Failed to init firmware\n"); - return -EIO; - } + if (err) + return err; + + err = netxen_napi_add(adapter, netdev); + if (err) + return err; if (adapter->fw_major < 4) adapter->max_rds_rings = 3; @@ -956,6 +975,7 @@ netxen_nic_detach(struct netxen_adapter *adapter) netxen_free_hw_resources(adapter); netxen_release_rx_buffers(adapter); netxen_nic_free_irq(adapter); + netxen_napi_del(adapter); netxen_free_sw_resources(adapter); adapter->is_up = 0; @@ -1100,9 +1120,6 @@ netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent) netdev->irq = adapter->msix_entries[0].vector; - if (netxen_napi_add(adapter, netdev)) - goto err_out_disable_msi; - init_timer(&adapter->watchdog_timer); adapter->watchdog_timer.function = &netxen_watchdog; adapter->watchdog_timer.data = (unsigned long)adapter; @@ -1183,7 +1200,6 @@ static void __devexit netxen_nic_remove(struct pci_dev *pdev) netxen_free_adapter_offload(adapter); netxen_teardown_intr(adapter); - netxen_free_sds_rings(&adapter->recv_ctx); netxen_cleanup_pci_map(adapter); -- cgit v0.10.2 From 5b766182a110311fbf618f736bc8a8f2f7ce3f4c Mon Sep 17 00:00:00 2001 From: Antonio Ospite Date: Wed, 22 Jul 2009 17:20:50 -0300 Subject: V4L/DVB (12330): pxa_camera: Fix Oops in pxa_camera_probe mclk_get_divisor uses pcdev->soc_host.dev, make sure it is initialized. Signed-off-by: Antonio Ospite Signed-off-by: Guennadi Liakhovetski Signed-off-by: Mauro Carvalho Chehab diff --git a/drivers/media/video/pxa_camera.c b/drivers/media/video/pxa_camera.c index 46e0d8a..e048d25 100644 --- a/drivers/media/video/pxa_camera.c +++ b/drivers/media/video/pxa_camera.c @@ -1579,6 +1579,7 @@ static int __devinit pxa_camera_probe(struct platform_device *pdev) pcdev->mclk = 20000000; } + pcdev->soc_host.dev = &pdev->dev; pcdev->mclk_divisor = mclk_get_divisor(pcdev); INIT_LIST_HEAD(&pcdev->capture); @@ -1644,7 +1645,6 @@ static int __devinit pxa_camera_probe(struct platform_device *pdev) pcdev->soc_host.drv_name = PXA_CAM_DRV_NAME; pcdev->soc_host.ops = &pxa_soc_camera_host_ops; pcdev->soc_host.priv = pcdev; - pcdev->soc_host.dev = &pdev->dev; pcdev->soc_host.nr = pdev->id; err = soc_camera_host_register(&pcdev->soc_host); -- cgit v0.10.2 From ed18d0c87ee0ab6e0985d83c19cd135b1bd54998 Mon Sep 17 00:00:00 2001 From: Roel Kluin Date: Thu, 23 Jul 2009 21:46:57 -0300 Subject: V4L/DVB (12337): ivtv: Read buffer overflow This mistakenly tests against sizeof(freqs) instead of the array size. Due to the mask the only illegal value possible was 3. Signed-off-by: Roel Kluin Signed-off-by: Andy Walls Signed-off-by: Mauro Carvalho Chehab diff --git a/drivers/media/video/ivtv/ivtv-controls.c b/drivers/media/video/ivtv/ivtv-controls.c index a3b77ed..4a9c8ce 100644 --- a/drivers/media/video/ivtv/ivtv-controls.c +++ b/drivers/media/video/ivtv/ivtv-controls.c @@ -17,6 +17,7 @@ along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ +#include #include "ivtv-driver.h" #include "ivtv-cards.h" @@ -281,7 +282,7 @@ int ivtv_s_ext_ctrls(struct file *file, void *fh, struct v4l2_ext_controls *c) idx = p.audio_properties & 0x03; /* The audio clock of the digitizer must match the codec sample rate otherwise you get some very strange effects. */ - if (idx < sizeof(freqs)) + if (idx < ARRAY_SIZE(freqs)) ivtv_call_all(itv, audio, s_clock_freq, freqs[idx]); return err; } -- cgit v0.10.2 From 225aeb1c5863bc92c6bb1f921e9a6cf4d15dbb2a Mon Sep 17 00:00:00 2001 From: Andy Walls Date: Thu, 23 Jul 2009 21:51:29 -0300 Subject: V4L/DVB (12338): cx18: Read buffer overflow This mistakenly tested against sizeof(freqs) instead of the array size. Due to the mask the only illegal value possible was 3. Reported-by: Roel Kluin Signed-off-by: Andy Walls Signed-off-by: Mauro Carvalho Chehab diff --git a/drivers/media/video/cx18/cx18-controls.c b/drivers/media/video/cx18/cx18-controls.c index 5136df1..93f0dae 100644 --- a/drivers/media/video/cx18/cx18-controls.c +++ b/drivers/media/video/cx18/cx18-controls.c @@ -20,6 +20,7 @@ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA * 02111-1307 USA */ +#include #include "cx18-driver.h" #include "cx18-cards.h" @@ -317,7 +318,7 @@ int cx18_s_ext_ctrls(struct file *file, void *fh, struct v4l2_ext_controls *c) idx = p.audio_properties & 0x03; /* The audio clock of the digitizer must match the codec sample rate otherwise you get some very strange effects. */ - if (idx < sizeof(freqs)) + if (idx < ARRAY_SIZE(freqs)) cx18_call_all(cx, audio, s_clock_freq, freqs[idx]); return err; } -- cgit v0.10.2 From 296544e15a7126373851abd40acc526b79b91432 Mon Sep 17 00:00:00 2001 From: Mauro Carvalho Chehab Date: Mon, 27 Jul 2009 08:24:29 -0300 Subject: V4L/DVB (12340): mtv9v011: Add a missing chip version to the driver Some mt9v011 webcams report 0x8332 chip version, instead of 0x8243. From the revision history at the mt9v011 datasheet, it seems that the chip version has changed from the first release of the chip. Thanks-to hermann pitton for pointing this to me, on his tests with a Silvercrest webcam. Signed-off-by: Mauro Carvalho Chehab diff --git a/drivers/media/video/em28xx/em28xx-cards.c b/drivers/media/video/em28xx/em28xx-cards.c index 320f1f6..bc213a1 100644 --- a/drivers/media/video/em28xx/em28xx-cards.c +++ b/drivers/media/video/em28xx/em28xx-cards.c @@ -1771,7 +1771,8 @@ static int em28xx_hint_sensor(struct em28xx *dev) version = be16_to_cpu(version_be); switch (version) { - case 0x8243: /* mt9v011 640x480 1.3 Mpix sensor */ + case 0x8232: /* mt9v011 640x480 1.3 Mpix sensor */ + case 0x8243: /* mt9v011 rev B 640x480 1.3 Mpix sensor */ dev->model = EM2820_BOARD_SILVERCREST_WEBCAM; sensor_name = "mt9v011"; dev->em28xx_sensor = EM28XX_MT9V011; diff --git a/drivers/media/video/mt9v011.c b/drivers/media/video/mt9v011.c index b2260de..c14bf47 100644 --- a/drivers/media/video/mt9v011.c +++ b/drivers/media/video/mt9v011.c @@ -393,10 +393,13 @@ static int mt9v011_s_register(struct v4l2_subdev *sd, static int mt9v011_g_chip_ident(struct v4l2_subdev *sd, struct v4l2_dbg_chip_ident *chip) { + u16 version; struct i2c_client *client = v4l2_get_subdevdata(sd); + version = mt9v011_read(sd, R00_MT9V011_CHIP_VERSION); + return v4l2_chip_ident_i2c_client(client, chip, V4L2_IDENT_MT9V011, - MT9V011_VERSION); + version); } static const struct v4l2_subdev_core_ops mt9v011_core_ops = { @@ -449,8 +452,9 @@ static int mt9v011_probe(struct i2c_client *c, /* Check if the sensor is really a MT9V011 */ version = mt9v011_read(sd, R00_MT9V011_CHIP_VERSION); - if (version != MT9V011_VERSION) { - v4l2_info(sd, "*** unknown micron chip detected (0x%04x.\n", + if ((version != MT9V011_VERSION) && + (version != MT9V011_REV_B_VERSION)) { + v4l2_info(sd, "*** unknown micron chip detected (0x%04x).\n", version); kfree(core); return -EINVAL; @@ -461,8 +465,8 @@ static int mt9v011_probe(struct i2c_client *c, core->height = 480; core->xtal = 27000000; /* Hz */ - v4l_info(c, "chip found @ 0x%02x (%s)\n", - c->addr << 1, c->adapter->name); + v4l_info(c, "chip found @ 0x%02x (%s - chip version 0x%04x)\n", + c->addr << 1, c->adapter->name, version); return 0; } diff --git a/drivers/media/video/mt9v011.h b/drivers/media/video/mt9v011.h index 9e443ee..3350fd6 100644 --- a/drivers/media/video/mt9v011.h +++ b/drivers/media/video/mt9v011.h @@ -30,6 +30,7 @@ #define R35_MT9V011_GLOBAL_GAIN 0x35 #define RF1_MT9V011_CHIP_ENABLE 0xf1 -#define MT9V011_VERSION 0x8243 +#define MT9V011_VERSION 0x8232 +#define MT9V011_REV_B_VERSION 0x8243 #endif -- cgit v0.10.2 From 458f9aa391efd34867f8cabac2e2f1af00cbc562 Mon Sep 17 00:00:00 2001 From: Jan Nikitenko Date: Thu, 18 Jun 2009 08:11:57 -0300 Subject: V4L/DVB (12341): zl10353 and qt1010: fix stack corruption bug Fixes stack corruption bug present in dump_regs function of zl10353 and qt1010 drivers: the buffer buf was one byte smaller than required - there are 4 chars for address prefix, 16 * 3 chars for dump of 16 eeprom bytes per line and 1 byte for zero ending the string required, i.e. 53 bytes, but only 52 were provided. The one byte missing in stack based buffer buf can cause stack corruption possibly leading to kernel oops, as discovered originally with af9015 driver (af9015: fix stack corruption bug). Signed-off-by: Jan Nikitenko Signed-off-by: Mauro Carvalho Chehab diff --git a/drivers/media/common/tuners/qt1010.c b/drivers/media/common/tuners/qt1010.c index 825aa14..9f5dba2 100644 --- a/drivers/media/common/tuners/qt1010.c +++ b/drivers/media/common/tuners/qt1010.c @@ -64,24 +64,22 @@ static int qt1010_writereg(struct qt1010_priv *priv, u8 reg, u8 val) /* dump all registers */ static void qt1010_dump_regs(struct qt1010_priv *priv) { - char buf[52], buf2[4]; u8 reg, val; for (reg = 0; ; reg++) { if (reg % 16 == 0) { if (reg) - printk("%s\n", buf); - sprintf(buf, "%02x: ", reg); + printk(KERN_CONT "\n"); + printk(KERN_DEBUG "%02x:", reg); } if (qt1010_readreg(priv, reg, &val) == 0) - sprintf(buf2, "%02x ", val); + printk(KERN_CONT " %02x", val); else - strcpy(buf2, "-- "); - strcat(buf, buf2); + printk(KERN_CONT " --"); if (reg == 0x2f) break; } - printk("%s\n", buf); + printk(KERN_CONT "\n"); } static int qt1010_set_params(struct dvb_frontend *fe, diff --git a/drivers/media/dvb/frontends/zl10353.c b/drivers/media/dvb/frontends/zl10353.c index 148b6f7..66f5c1f 100644 --- a/drivers/media/dvb/frontends/zl10353.c +++ b/drivers/media/dvb/frontends/zl10353.c @@ -98,7 +98,6 @@ static int zl10353_read_register(struct zl10353_state *state, u8 reg) static void zl10353_dump_regs(struct dvb_frontend *fe) { struct zl10353_state *state = fe->demodulator_priv; - char buf[52], buf2[4]; int ret; u8 reg; @@ -106,19 +105,18 @@ static void zl10353_dump_regs(struct dvb_frontend *fe) for (reg = 0; ; reg++) { if (reg % 16 == 0) { if (reg) - printk(KERN_DEBUG "%s\n", buf); - sprintf(buf, "%02x: ", reg); + printk(KERN_CONT "\n"); + printk(KERN_DEBUG "%02x:", reg); } ret = zl10353_read_register(state, reg); if (ret >= 0) - sprintf(buf2, "%02x ", (u8)ret); + printk(KERN_CONT " %02x", (u8)ret); else - strcpy(buf2, "-- "); - strcat(buf, buf2); + printk(KERN_CONT " --"); if (reg == 0xff) break; } - printk(KERN_DEBUG "%s\n", buf); + printk(KERN_CONT "\n"); } static void zl10353_calc_nominal_rate(struct dvb_frontend *fe, -- cgit v0.10.2 From 0a6e44d1beb30813f62ad376a31694e637858328 Mon Sep 17 00:00:00 2001 From: Mauro Carvalho Chehab Date: Wed, 29 Jul 2009 01:39:12 -0300 Subject: V4L/DVB (12344): em28xx: fix support for Plextor ConvertX PX-TV100U This device uses msp34xx and uses 2.048 MHz frequency for I2S communication. Thanks to Angelo Cano for pointing the issues with this device and proposing an approach for fixing the issue. Tested-by: Angelo Cano Signed-off-by: Mauro Carvalho Chehab diff --git a/drivers/media/video/em28xx/em28xx-cards.c b/drivers/media/video/em28xx/em28xx-cards.c index bc213a1..d0b033b 100644 --- a/drivers/media/video/em28xx/em28xx-cards.c +++ b/drivers/media/video/em28xx/em28xx-cards.c @@ -622,22 +622,27 @@ struct em28xx_board em28xx_boards[] = { }, [EM2861_BOARD_PLEXTOR_PX_TV100U] = { .name = "Plextor ConvertX PX-TV100U", - .valid = EM28XX_BOARD_NOT_VALIDATED, .tuner_type = TUNER_TNF_5335MF, + .xclk = EM28XX_XCLK_I2S_MSB_TIMING | + EM28XX_XCLK_FREQUENCY_12MHZ, .tda9887_conf = TDA9887_PRESENT, .decoder = EM28XX_TVP5150, + .has_msp34xx = 1, .input = { { .type = EM28XX_VMUX_TELEVISION, .vmux = TVP5150_COMPOSITE0, .amux = EM28XX_AMUX_LINE_IN, + .gpio = pinnacle_hybrid_pro_analog, }, { .type = EM28XX_VMUX_COMPOSITE1, .vmux = TVP5150_COMPOSITE1, .amux = EM28XX_AMUX_LINE_IN, + .gpio = pinnacle_hybrid_pro_analog, }, { .type = EM28XX_VMUX_SVIDEO, .vmux = TVP5150_SVIDEO, .amux = EM28XX_AMUX_LINE_IN, + .gpio = pinnacle_hybrid_pro_analog, } }, }, @@ -1877,9 +1882,8 @@ void em28xx_pre_card_setup(struct em28xx *dev) /* request some modules */ switch (dev->model) { case EM2861_BOARD_PLEXTOR_PX_TV100U: - /* FIXME guess */ - /* Turn on analog audio output */ - em28xx_write_reg(dev, EM28XX_R08_GPIO, 0xfd); + /* Sets the msp34xx I2S speed */ + dev->i2s_speed = 2048000; break; case EM2861_BOARD_KWORLD_PVRTV_300U: case EM2880_BOARD_KWORLD_DVB_305U: -- cgit v0.10.2 From 337ab6d34f0be7cfbfb5ac8cb651276fc58aa20d Mon Sep 17 00:00:00 2001 From: Sohail Syyed Date: Sun, 26 Jul 2009 11:06:20 -0300 Subject: V4L/DVB (12349): cx88: HVR1300 ensure switching from Encoder to DVB-T and back is reliable Current tip is broken and does not switch back to DVB-T correctly Signed-off-by: Sohail Syyed Signed-off-by: Steven Toth Signed-off-by: Mauro Carvalho Chehab diff --git a/drivers/media/video/cx88/cx88-mpeg.c b/drivers/media/video/cx88/cx88-mpeg.c index da4e391..7172dcf 100644 --- a/drivers/media/video/cx88/cx88-mpeg.c +++ b/drivers/media/video/cx88/cx88-mpeg.c @@ -116,6 +116,10 @@ static int cx8802_start_dma(struct cx8802_dev *dev, udelay(100); break; case CX88_BOARD_HAUPPAUGE_HVR1300: + /* Enable MPEG parallel IO and video signal pins */ + cx_write(MO_PINMUX_IO, 0x88); + cx_write(TS_SOP_STAT, 0); + cx_write(TS_VALERR_CNTRL, 0); break; case CX88_BOARD_PINNACLE_PCTV_HD_800i: /* Enable MPEG parallel IO and video signal pins */ -- cgit v0.10.2 From 6655be0f4f377d7e249219c6031c4be3533604a2 Mon Sep 17 00:00:00 2001 From: Michael Krufky Date: Mon, 20 Jul 2009 12:20:58 -0300 Subject: V4L/DVB (12362): cx23885-417: fix manipulation of tvnorms Currently, the VIDIOC_S_STD ioctl just returns -EINVAL regardless of the norm passed. This patch sets cx23885_mpeg_template.tvnorms and cx23885_mpeg_template.current_norm so that the VIDIOC_S_STD will work. Thanks to Joseph Yasi for pointing this out, even though this particular fix was already pushed into a development repository, merge priority of this changeset has been escalated as a result of Joseph posting this identical patch. Signed-off-by: Michael Krufky Signed-off-by: Joseph A. Yasi Reviewed-by: Steven Toth Signed-off-by: Mauro Carvalho Chehab diff --git a/drivers/media/video/cx23885/cx23885-417.c b/drivers/media/video/cx23885/cx23885-417.c index e0cf21e..1a1048b 100644 --- a/drivers/media/video/cx23885/cx23885-417.c +++ b/drivers/media/video/cx23885/cx23885-417.c @@ -1715,6 +1715,8 @@ static struct video_device cx23885_mpeg_template = { .fops = &mpeg_fops, .ioctl_ops = &mpeg_ioctl_ops, .minor = -1, + .tvnorms = CX23885_NORMS, + .current_norm = V4L2_STD_NTSC_M, }; void cx23885_417_unregister(struct cx23885_dev *dev) -- cgit v0.10.2 From ba1bc64272f0af668690ba2bf859b13172db7230 Mon Sep 17 00:00:00 2001 From: Nils Kassube Date: Tue, 28 Jul 2009 11:54:52 -0300 Subject: V4L/DVB (12371): af9015: Fix for crash in dvb-usb-af9015 Moving BOOT fixes problem. Signed-off-by: Nils Kassube Acked-by: Antti Palosaari Signed-off-by: Douglas Schilling Landgraf Signed-off-by: Mauro Carvalho Chehab diff --git a/drivers/media/dvb/dvb-usb/af9015.c b/drivers/media/dvb/dvb-usb/af9015.c index 4cb31e7..26690df 100644 --- a/drivers/media/dvb/dvb-usb/af9015.c +++ b/drivers/media/dvb/dvb-usb/af9015.c @@ -81,7 +81,6 @@ static int af9015_rw_udev(struct usb_device *udev, struct req_t *req) switch (req->cmd) { case GET_CONFIG: - case BOOT: case READ_MEMORY: case RECONNECT_USB: case GET_IR_CODE: @@ -100,6 +99,7 @@ static int af9015_rw_udev(struct usb_device *udev, struct req_t *req) case WRITE_VIRTUAL_MEMORY: case COPY_FIRMWARE: case DOWNLOAD_FIRMWARE: + case BOOT: break; default: err("unknown command:%d", req->cmd); -- cgit v0.10.2 From 261982f17051d10a1054a77ec8ae13517e0acee2 Mon Sep 17 00:00:00 2001 From: Brian Johnson Date: Sun, 19 Jul 2009 15:58:56 -0300 Subject: V4L/DVB (12373a): Add gspca sn9c20x subdriver entry to MAINTAINERS file MAINTAINERS | 8 ++++++++ Signed-off-by: Brian Johnson Acked-by: Jean-Francois Moine Signed-off-by: Mauro Carvalho Chehab diff --git a/MAINTAINERS b/MAINTAINERS index b1114cf..2c4326c 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -2238,6 +2238,14 @@ T: git git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6.git S: Maintained F: drivers/media/video/gspca/pac207.c +GSPCA SN9C20X SUBDRIVER +P: Brian Johnson +M: brijohn@gmail.com +L: linux-media@vger.kernel.org +T: git git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6.git +S: Maintained +F: drivers/media/video/gspca/sn9c20x.c + GSPCA T613 SUBDRIVER M: Leandro Costantino L: linux-media@vger.kernel.org -- cgit v0.10.2 From d1ae4e1d05cc982b6b480c1a3d69b8bb231e3493 Mon Sep 17 00:00:00 2001 From: Michael Krufky Date: Sun, 12 Jul 2009 18:25:45 -0300 Subject: V4L/DVB (12374): sms1xxx: fix broken Hauppauge devices The current GPIO configuration breaks all Hauppauge devices. The code being removed affects Hauppauge devices only, and is the cause of the breakage. Signed-off-by: Michael Krufky Signed-off-by: Mauro Carvalho Chehab diff --git a/drivers/media/dvb/siano/sms-cards.c b/drivers/media/dvb/siano/sms-cards.c index d8b15d5..76bd3cb 100644 --- a/drivers/media/dvb/siano/sms-cards.c +++ b/drivers/media/dvb/siano/sms-cards.c @@ -124,91 +124,15 @@ int sms_board_event(struct smscore_device_t *coredev, switch (gevent) { case BOARD_EVENT_POWER_INIT: /* including hotplug */ - switch (board_id) { - case SMS1XXX_BOARD_HAUPPAUGE_WINDHAM: - /* set I/O and turn off all LEDs */ - smscore_gpio_configure(coredev, - board->board_cfg.leds_power, - &MyGpioConfig); - smscore_gpio_set_level(coredev, - board->board_cfg.leds_power, 0); - smscore_gpio_configure(coredev, board->board_cfg.led0, - &MyGpioConfig); - smscore_gpio_set_level(coredev, - board->board_cfg.led0, 0); - smscore_gpio_configure(coredev, board->board_cfg.led1, - &MyGpioConfig); - smscore_gpio_set_level(coredev, - board->board_cfg.led1, 0); - break; - case SMS1XXX_BOARD_HAUPPAUGE_TIGER_MINICARD_R2: - case SMS1XXX_BOARD_HAUPPAUGE_TIGER_MINICARD: - /* set I/O and turn off LNA */ - smscore_gpio_configure(coredev, - board->board_cfg.foreign_lna0_ctrl, - &MyGpioConfig); - smscore_gpio_set_level(coredev, - board->board_cfg.foreign_lna0_ctrl, - 0); - break; - } break; /* BOARD_EVENT_BIND */ case BOARD_EVENT_POWER_SUSPEND: - switch (board_id) { - case SMS1XXX_BOARD_HAUPPAUGE_WINDHAM: - smscore_gpio_set_level(coredev, - board->board_cfg.leds_power, 0); - smscore_gpio_set_level(coredev, - board->board_cfg.led0, 0); - smscore_gpio_set_level(coredev, - board->board_cfg.led1, 0); - break; - case SMS1XXX_BOARD_HAUPPAUGE_TIGER_MINICARD_R2: - case SMS1XXX_BOARD_HAUPPAUGE_TIGER_MINICARD: - smscore_gpio_set_level(coredev, - board->board_cfg.foreign_lna0_ctrl, - 0); - break; - } break; /* BOARD_EVENT_POWER_SUSPEND */ case BOARD_EVENT_POWER_RESUME: - switch (board_id) { - case SMS1XXX_BOARD_HAUPPAUGE_WINDHAM: - smscore_gpio_set_level(coredev, - board->board_cfg.leds_power, 1); - smscore_gpio_set_level(coredev, - board->board_cfg.led0, 1); - smscore_gpio_set_level(coredev, - board->board_cfg.led1, 0); - break; - case SMS1XXX_BOARD_HAUPPAUGE_TIGER_MINICARD_R2: - case SMS1XXX_BOARD_HAUPPAUGE_TIGER_MINICARD: - smscore_gpio_set_level(coredev, - board->board_cfg.foreign_lna0_ctrl, - 1); - break; - } break; /* BOARD_EVENT_POWER_RESUME */ case BOARD_EVENT_BIND: - switch (board_id) { - case SMS1XXX_BOARD_HAUPPAUGE_WINDHAM: - smscore_gpio_set_level(coredev, - board->board_cfg.leds_power, 1); - smscore_gpio_set_level(coredev, - board->board_cfg.led0, 1); - smscore_gpio_set_level(coredev, - board->board_cfg.led1, 0); - break; - case SMS1XXX_BOARD_HAUPPAUGE_TIGER_MINICARD_R2: - case SMS1XXX_BOARD_HAUPPAUGE_TIGER_MINICARD: - smscore_gpio_set_level(coredev, - board->board_cfg.foreign_lna0_ctrl, - 1); - break; - } break; /* BOARD_EVENT_BIND */ case BOARD_EVENT_SCAN_PROG: @@ -218,20 +142,8 @@ int sms_board_event(struct smscore_device_t *coredev, case BOARD_EVENT_EMERGENCY_WARNING_SIGNAL: break; /* BOARD_EVENT_EMERGENCY_WARNING_SIGNAL */ case BOARD_EVENT_FE_LOCK: - switch (board_id) { - case SMS1XXX_BOARD_HAUPPAUGE_WINDHAM: - smscore_gpio_set_level(coredev, - board->board_cfg.led1, 1); - break; - } break; /* BOARD_EVENT_FE_LOCK */ case BOARD_EVENT_FE_UNLOCK: - switch (board_id) { - case SMS1XXX_BOARD_HAUPPAUGE_WINDHAM: - smscore_gpio_set_level(coredev, - board->board_cfg.led1, 0); - break; - } break; /* BOARD_EVENT_FE_UNLOCK */ case BOARD_EVENT_DEMOD_LOCK: break; /* BOARD_EVENT_DEMOD_LOCK */ @@ -248,20 +160,8 @@ int sms_board_event(struct smscore_device_t *coredev, case BOARD_EVENT_RECEPTION_LOST_0: break; /* BOARD_EVENT_RECEPTION_LOST_0 */ case BOARD_EVENT_MULTIPLEX_OK: - switch (board_id) { - case SMS1XXX_BOARD_HAUPPAUGE_WINDHAM: - smscore_gpio_set_level(coredev, - board->board_cfg.led1, 1); - break; - } break; /* BOARD_EVENT_MULTIPLEX_OK */ case BOARD_EVENT_MULTIPLEX_ERRORS: - switch (board_id) { - case SMS1XXX_BOARD_HAUPPAUGE_WINDHAM: - smscore_gpio_set_level(coredev, - board->board_cfg.led1, 0); - break; - } break; /* BOARD_EVENT_MULTIPLEX_ERRORS */ default: -- cgit v0.10.2 From d79cd8393ae85ebaf53a8fc93491eea96522d68e Mon Sep 17 00:00:00 2001 From: Laurent Pinchart Date: Sun, 19 Jul 2009 19:16:05 -0300 Subject: V4L/DVB (12328): uvcvideo: Don't apply the FIX_BANDWIDTH quirk to all ViMicro devices Commit 50144aeeb702ea105697ae5249f059ea3990b838 broke the Samsung NC10 netbook webcam. Instead of applying the FIX_BANDWIDTH quirk to all ViMicro devices, list the devices explicitly. Signed-off-by: Laurent Pinchart Signed-off-by: Mauro Carvalho Chehab diff --git a/drivers/media/video/uvc/uvc_driver.c b/drivers/media/video/uvc/uvc_driver.c index 89927b7..04b4783 100644 --- a/drivers/media/video/uvc/uvc_driver.c +++ b/drivers/media/video/uvc/uvc_driver.c @@ -1845,11 +1845,29 @@ static struct usb_device_id uvc_ids[] = { .bInterfaceSubClass = 1, .bInterfaceProtocol = 0, .driver_info = UVC_QUIRK_STREAM_NO_FID }, - /* ViMicro */ - { .match_flags = USB_DEVICE_ID_MATCH_VENDOR + /* ViMicro Vega */ + { .match_flags = USB_DEVICE_ID_MATCH_DEVICE + | USB_DEVICE_ID_MATCH_INT_INFO, + .idVendor = 0x0ac8, + .idProduct = 0x332d, + .bInterfaceClass = USB_CLASS_VIDEO, + .bInterfaceSubClass = 1, + .bInterfaceProtocol = 0, + .driver_info = UVC_QUIRK_FIX_BANDWIDTH }, + /* ViMicro - Minoru3D */ + { .match_flags = USB_DEVICE_ID_MATCH_DEVICE + | USB_DEVICE_ID_MATCH_INT_INFO, + .idVendor = 0x0ac8, + .idProduct = 0x3410, + .bInterfaceClass = USB_CLASS_VIDEO, + .bInterfaceSubClass = 1, + .bInterfaceProtocol = 0, + .driver_info = UVC_QUIRK_FIX_BANDWIDTH }, + /* ViMicro Venus - Minoru3D */ + { .match_flags = USB_DEVICE_ID_MATCH_DEVICE | USB_DEVICE_ID_MATCH_INT_INFO, .idVendor = 0x0ac8, - .idProduct = 0x0000, + .idProduct = 0x3420, .bInterfaceClass = USB_CLASS_VIDEO, .bInterfaceSubClass = 1, .bInterfaceProtocol = 0, -- cgit v0.10.2 From bd0232c13419b7ce51e02942082ff6af231e0f84 Mon Sep 17 00:00:00 2001 From: Laurent Pinchart Date: Sat, 1 Aug 2009 18:14:24 -0300 Subject: V4L/DVB (12380): uvcvideo: Avoid flooding the kernel log with "unknown event type" messages The iSight sends non-UVC status events through the interrupt endpoint. Those invalid events are reported to the kernel log, resulting in a log flood. Only log the events when the UVC_TRACE_STATUS flag is set. Signed-off-by: Laurent Pinchart Signed-off-by: Mauro Carvalho Chehab diff --git a/drivers/media/video/uvc/uvc_status.c b/drivers/media/video/uvc/uvc_status.c index f152a99..1ca6dff 100644 --- a/drivers/media/video/uvc/uvc_status.c +++ b/drivers/media/video/uvc/uvc_status.c @@ -145,8 +145,8 @@ static void uvc_status_complete(struct urb *urb) break; default: - uvc_printk(KERN_INFO, "unknown event type %u.\n", - dev->status[0]); + uvc_trace(UVC_TRACE_STATUS, "Unknown status event " + "type %u.\n", dev->status[0]); break; } } -- cgit v0.10.2 From 79a6382551507ce196c3b4296e32b5386cdfbf15 Mon Sep 17 00:00:00 2001 From: Michael Krufky Date: Sun, 2 Aug 2009 12:37:34 -0300 Subject: V4L/DVB (12386): sms1xxx: fix build warning: unused variable 'board' Remove the following build warning: sms-cards.c: In function 'sms_board_event': sms-cards.c:120: warning: unused variable 'board' Thanks to Hans Verkuil for pointing this out. The problem code has been #if 0'd for now, this will likely be used again in the future, once the event interface is complete. Cc: Hans Verkuil Signed-off-by: Michael Krufky Signed-off-by: Mauro Carvalho Chehab diff --git a/drivers/media/dvb/siano/sms-cards.c b/drivers/media/dvb/siano/sms-cards.c index 76bd3cb..0420e28 100644 --- a/drivers/media/dvb/siano/sms-cards.c +++ b/drivers/media/dvb/siano/sms-cards.c @@ -116,8 +116,6 @@ static inline void sms_gpio_assign_11xx_default_led_config( int sms_board_event(struct smscore_device_t *coredev, enum SMS_BOARD_EVENTS gevent) { - int board_id = smscore_get_board_id(coredev); - struct sms_board *board = sms_get_board(board_id); struct smscore_gpio_config MyGpioConfig; sms_gpio_assign_11xx_default_led_config(&MyGpioConfig); -- cgit v0.10.2 From b5f05064b556da5183adc383e5f8d50af0392849 Mon Sep 17 00:00:00 2001 From: Michael Krufky Date: Mon, 3 Aug 2009 16:51:33 -0300 Subject: V4L/DVB (12390): saa7134: Use correct product name for Hauppauge WinTV-HVR1150 ATSC/QAM-Hybrid Signed-off-by: Michael Krufky Signed-off-by: Mauro Carvalho Chehab diff --git a/Documentation/video4linux/CARDLIST.saa7134 b/Documentation/video4linux/CARDLIST.saa7134 index 1556242..a82b767 100644 --- a/Documentation/video4linux/CARDLIST.saa7134 +++ b/Documentation/video4linux/CARDLIST.saa7134 @@ -153,7 +153,7 @@ 152 -> Asus Tiger Rev:1.00 [1043:4857] 153 -> Kworld Plus TV Analog Lite PCI [17de:7128] 154 -> Avermedia AVerTV GO 007 FM Plus [1461:f31d] -155 -> Hauppauge WinTV-HVR1120 ATSC/QAM-Hybrid [0070:6706,0070:6708] +155 -> Hauppauge WinTV-HVR1150 ATSC/QAM-Hybrid [0070:6706,0070:6708] 156 -> Hauppauge WinTV-HVR1110r3 DVB-T/Hybrid [0070:6707,0070:6709,0070:670a] 157 -> Avermedia AVerTV Studio 507UA [1461:a11b] 158 -> AVerMedia Cardbus TV/Radio (E501R) [1461:b7e9] diff --git a/drivers/media/video/saa7134/saa7134-cards.c b/drivers/media/video/saa7134/saa7134-cards.c index 06861b7..60e74ad 100644 --- a/drivers/media/video/saa7134/saa7134-cards.c +++ b/drivers/media/video/saa7134/saa7134-cards.c @@ -3331,8 +3331,8 @@ struct saa7134_board saa7134_boards[] = { .gpio = 0x0200100, }, }, - [SAA7134_BOARD_HAUPPAUGE_HVR1120] = { - .name = "Hauppauge WinTV-HVR1120 ATSC/QAM-Hybrid", + [SAA7134_BOARD_HAUPPAUGE_HVR1150] = { + .name = "Hauppauge WinTV-HVR1150 ATSC/QAM-Hybrid", .audio_clock = 0x00187de7, .tuner_type = TUNER_PHILIPS_TDA8290, .radio_type = UNSET, @@ -5862,7 +5862,7 @@ struct pci_device_id saa7134_pci_tbl[] = { .device = PCI_DEVICE_ID_PHILIPS_SAA7133, .subvendor = 0x0070, .subdevice = 0x6706, - .driver_data = SAA7134_BOARD_HAUPPAUGE_HVR1120, + .driver_data = SAA7134_BOARD_HAUPPAUGE_HVR1150, },{ .vendor = PCI_VENDOR_ID_PHILIPS, .device = PCI_DEVICE_ID_PHILIPS_SAA7133, @@ -5874,7 +5874,7 @@ struct pci_device_id saa7134_pci_tbl[] = { .device = PCI_DEVICE_ID_PHILIPS_SAA7133, .subvendor = 0x0070, .subdevice = 0x6708, - .driver_data = SAA7134_BOARD_HAUPPAUGE_HVR1120, + .driver_data = SAA7134_BOARD_HAUPPAUGE_HVR1150, },{ .vendor = PCI_VENDOR_ID_PHILIPS, .device = PCI_DEVICE_ID_PHILIPS_SAA7133, @@ -6363,7 +6363,7 @@ static int saa7134_tda8290_18271_callback(struct saa7134_dev *dev, switch (command) { case TDA18271_CALLBACK_CMD_AGC_ENABLE: /* 0 */ switch (dev->board) { - case SAA7134_BOARD_HAUPPAUGE_HVR1120: + case SAA7134_BOARD_HAUPPAUGE_HVR1150: case SAA7134_BOARD_HAUPPAUGE_HVR1110R3: ret = saa7134_tda18271_hvr11x0_toggle_agc(dev, arg); break; @@ -6384,7 +6384,7 @@ static int saa7134_tda8290_callback(struct saa7134_dev *dev, int ret; switch (dev->board) { - case SAA7134_BOARD_HAUPPAUGE_HVR1120: + case SAA7134_BOARD_HAUPPAUGE_HVR1150: case SAA7134_BOARD_HAUPPAUGE_HVR1110R3: /* tda8290 + tda18271 */ ret = saa7134_tda8290_18271_callback(dev, command, arg); @@ -6427,7 +6427,7 @@ static void hauppauge_eeprom(struct saa7134_dev *dev, u8 *eeprom_data) switch (tv.model) { case 67019: /* WinTV-HVR1110 (Retail, IR Blaster, hybrid, FM, SVid/Comp, 3.5mm audio in) */ case 67109: /* WinTV-HVR1000 (Retail, IR Receive, analog, no FM, SVid/Comp, 3.5mm audio in) */ - case 67201: /* WinTV-HVR1120 (Retail, IR Receive, hybrid, FM, SVid/Comp, 3.5mm audio in) */ + case 67201: /* WinTV-HVR1150 (Retail, IR Receive, hybrid, FM, SVid/Comp, 3.5mm audio in) */ case 67301: /* WinTV-HVR1000 (Retail, IR Receive, analog, no FM, SVid/Comp, 3.5mm audio in) */ case 67209: /* WinTV-HVR1110 (Retail, IR Receive, hybrid, FM, SVid/Comp, 3.5mm audio in) */ case 67559: /* WinTV-HVR1110 (OEM, no IR, hybrid, FM, SVid/Comp, RCA aud) */ @@ -6435,7 +6435,7 @@ static void hauppauge_eeprom(struct saa7134_dev *dev, u8 *eeprom_data) case 67579: /* WinTV-HVR1110 (OEM, no IR, hybrid, no FM) */ case 67589: /* WinTV-HVR1110 (OEM, no IR, hybrid, no FM, SVid/Comp, RCA aud) */ case 67599: /* WinTV-HVR1110 (OEM, no IR, hybrid, no FM, SVid/Comp, RCA aud) */ - case 67651: /* WinTV-HVR1120 (OEM, no IR, hybrid, FM, SVid/Comp, RCA aud) */ + case 67651: /* WinTV-HVR1150 (OEM, no IR, hybrid, FM, SVid/Comp, RCA aud) */ case 67659: /* WinTV-HVR1110 (OEM, no IR, hybrid, FM, SVid/Comp, RCA aud) */ break; default: @@ -6625,7 +6625,7 @@ int saa7134_board_init1(struct saa7134_dev *dev) saa_writeb (SAA7134_PRODUCTION_TEST_MODE, 0x00); break; - case SAA7134_BOARD_HAUPPAUGE_HVR1120: + case SAA7134_BOARD_HAUPPAUGE_HVR1150: case SAA7134_BOARD_HAUPPAUGE_HVR1110R3: /* GPIO 26 high for digital, low for analog */ saa7134_set_gpio(dev, 26, 0); @@ -6891,7 +6891,7 @@ int saa7134_board_init2(struct saa7134_dev *dev) dev->name, saa7134_boards[dev->board].name); } break; - case SAA7134_BOARD_HAUPPAUGE_HVR1120: + case SAA7134_BOARD_HAUPPAUGE_HVR1150: case SAA7134_BOARD_HAUPPAUGE_HVR1110R3: hauppauge_eeprom(dev, dev->eedata+0x80); break; diff --git a/drivers/media/video/saa7134/saa7134-dvb.c b/drivers/media/video/saa7134/saa7134-dvb.c index 31930f2..ae0a7ec 100644 --- a/drivers/media/video/saa7134/saa7134-dvb.c +++ b/drivers/media/video/saa7134/saa7134-dvb.c @@ -1147,7 +1147,7 @@ static int dvb_init(struct saa7134_dev *dev) &tda827x_cfg_1) < 0) goto dettach_frontend; break; - case SAA7134_BOARD_HAUPPAUGE_HVR1120: + case SAA7134_BOARD_HAUPPAUGE_HVR1150: fe0->dvb.frontend = dvb_attach(lgdt3305_attach, &hcw_lgdt3305_config, &dev->i2c_adap); diff --git a/drivers/media/video/saa7134/saa7134.h b/drivers/media/video/saa7134/saa7134.h index 8226884..bad5b23 100644 --- a/drivers/media/video/saa7134/saa7134.h +++ b/drivers/media/video/saa7134/saa7134.h @@ -278,7 +278,7 @@ struct saa7134_format { #define SAA7134_BOARD_ASUSTeK_TIGER 152 #define SAA7134_BOARD_KWORLD_PLUS_TV_ANALOG 153 #define SAA7134_BOARD_AVERMEDIA_GO_007_FM_PLUS 154 -#define SAA7134_BOARD_HAUPPAUGE_HVR1120 155 +#define SAA7134_BOARD_HAUPPAUGE_HVR1150 155 #define SAA7134_BOARD_HAUPPAUGE_HVR1110R3 156 #define SAA7134_BOARD_AVERMEDIA_STUDIO_507UA 157 #define SAA7134_BOARD_AVERMEDIA_CARDBUS_501 158 -- cgit v0.10.2 From 0e316ecfc851c8dd955d9fa6e0d3a46e451a46f4 Mon Sep 17 00:00:00 2001 From: Michael Krufky Date: Mon, 3 Aug 2009 16:51:33 -0300 Subject: V4L/DVB (12391): saa7134: Use correct product name for Hauppauge WinTV-HVR1120 DVB-T/Hybrid Signed-off-by: Michael Krufky Signed-off-by: Mauro Carvalho Chehab diff --git a/Documentation/video4linux/CARDLIST.saa7134 b/Documentation/video4linux/CARDLIST.saa7134 index a82b767..c913e56 100644 --- a/Documentation/video4linux/CARDLIST.saa7134 +++ b/Documentation/video4linux/CARDLIST.saa7134 @@ -154,7 +154,7 @@ 153 -> Kworld Plus TV Analog Lite PCI [17de:7128] 154 -> Avermedia AVerTV GO 007 FM Plus [1461:f31d] 155 -> Hauppauge WinTV-HVR1150 ATSC/QAM-Hybrid [0070:6706,0070:6708] -156 -> Hauppauge WinTV-HVR1110r3 DVB-T/Hybrid [0070:6707,0070:6709,0070:670a] +156 -> Hauppauge WinTV-HVR1120 DVB-T/Hybrid [0070:6707,0070:6709,0070:670a] 157 -> Avermedia AVerTV Studio 507UA [1461:a11b] 158 -> AVerMedia Cardbus TV/Radio (E501R) [1461:b7e9] 159 -> Beholder BeholdTV 505 RDS [0000:505B] diff --git a/drivers/media/video/saa7134/saa7134-cards.c b/drivers/media/video/saa7134/saa7134-cards.c index 60e74ad..6eebe3e 100644 --- a/drivers/media/video/saa7134/saa7134-cards.c +++ b/drivers/media/video/saa7134/saa7134-cards.c @@ -3363,8 +3363,8 @@ struct saa7134_board saa7134_boards[] = { .gpio = 0x0800100, /* GPIO 23 HI for FM */ }, }, - [SAA7134_BOARD_HAUPPAUGE_HVR1110R3] = { - .name = "Hauppauge WinTV-HVR1110r3 DVB-T/Hybrid", + [SAA7134_BOARD_HAUPPAUGE_HVR1120] = { + .name = "Hauppauge WinTV-HVR1120 DVB-T/Hybrid", .audio_clock = 0x00187de7, .tuner_type = TUNER_PHILIPS_TDA8290, .radio_type = UNSET, @@ -5868,7 +5868,7 @@ struct pci_device_id saa7134_pci_tbl[] = { .device = PCI_DEVICE_ID_PHILIPS_SAA7133, .subvendor = 0x0070, .subdevice = 0x6707, - .driver_data = SAA7134_BOARD_HAUPPAUGE_HVR1110R3, + .driver_data = SAA7134_BOARD_HAUPPAUGE_HVR1120, },{ .vendor = PCI_VENDOR_ID_PHILIPS, .device = PCI_DEVICE_ID_PHILIPS_SAA7133, @@ -5880,13 +5880,13 @@ struct pci_device_id saa7134_pci_tbl[] = { .device = PCI_DEVICE_ID_PHILIPS_SAA7133, .subvendor = 0x0070, .subdevice = 0x6709, - .driver_data = SAA7134_BOARD_HAUPPAUGE_HVR1110R3, + .driver_data = SAA7134_BOARD_HAUPPAUGE_HVR1120, },{ .vendor = PCI_VENDOR_ID_PHILIPS, .device = PCI_DEVICE_ID_PHILIPS_SAA7133, .subvendor = 0x0070, .subdevice = 0x670a, - .driver_data = SAA7134_BOARD_HAUPPAUGE_HVR1110R3, + .driver_data = SAA7134_BOARD_HAUPPAUGE_HVR1120, },{ .vendor = PCI_VENDOR_ID_PHILIPS, .device = PCI_DEVICE_ID_PHILIPS_SAA7133, @@ -6364,7 +6364,7 @@ static int saa7134_tda8290_18271_callback(struct saa7134_dev *dev, case TDA18271_CALLBACK_CMD_AGC_ENABLE: /* 0 */ switch (dev->board) { case SAA7134_BOARD_HAUPPAUGE_HVR1150: - case SAA7134_BOARD_HAUPPAUGE_HVR1110R3: + case SAA7134_BOARD_HAUPPAUGE_HVR1120: ret = saa7134_tda18271_hvr11x0_toggle_agc(dev, arg); break; default: @@ -6385,7 +6385,7 @@ static int saa7134_tda8290_callback(struct saa7134_dev *dev, switch (dev->board) { case SAA7134_BOARD_HAUPPAUGE_HVR1150: - case SAA7134_BOARD_HAUPPAUGE_HVR1110R3: + case SAA7134_BOARD_HAUPPAUGE_HVR1120: /* tda8290 + tda18271 */ ret = saa7134_tda8290_18271_callback(dev, command, arg); break; @@ -6626,7 +6626,7 @@ int saa7134_board_init1(struct saa7134_dev *dev) saa_writeb (SAA7134_PRODUCTION_TEST_MODE, 0x00); break; case SAA7134_BOARD_HAUPPAUGE_HVR1150: - case SAA7134_BOARD_HAUPPAUGE_HVR1110R3: + case SAA7134_BOARD_HAUPPAUGE_HVR1120: /* GPIO 26 high for digital, low for analog */ saa7134_set_gpio(dev, 26, 0); msleep(1); @@ -6892,7 +6892,7 @@ int saa7134_board_init2(struct saa7134_dev *dev) } break; case SAA7134_BOARD_HAUPPAUGE_HVR1150: - case SAA7134_BOARD_HAUPPAUGE_HVR1110R3: + case SAA7134_BOARD_HAUPPAUGE_HVR1120: hauppauge_eeprom(dev, dev->eedata+0x80); break; case SAA7134_BOARD_HAUPPAUGE_HVR1110: diff --git a/drivers/media/video/saa7134/saa7134-dvb.c b/drivers/media/video/saa7134/saa7134-dvb.c index ae0a7ec..98f3efd 100644 --- a/drivers/media/video/saa7134/saa7134-dvb.c +++ b/drivers/media/video/saa7134/saa7134-dvb.c @@ -1119,7 +1119,7 @@ static int dvb_init(struct saa7134_dev *dev) &tda827x_cfg_2) < 0) goto dettach_frontend; break; - case SAA7134_BOARD_HAUPPAUGE_HVR1110R3: + case SAA7134_BOARD_HAUPPAUGE_HVR1120: fe0->dvb.frontend = dvb_attach(tda10048_attach, &hcw_tda10048_config, &dev->i2c_adap); diff --git a/drivers/media/video/saa7134/saa7134.h b/drivers/media/video/saa7134/saa7134.h index bad5b23..fb564f1 100644 --- a/drivers/media/video/saa7134/saa7134.h +++ b/drivers/media/video/saa7134/saa7134.h @@ -279,7 +279,7 @@ struct saa7134_format { #define SAA7134_BOARD_KWORLD_PLUS_TV_ANALOG 153 #define SAA7134_BOARD_AVERMEDIA_GO_007_FM_PLUS 154 #define SAA7134_BOARD_HAUPPAUGE_HVR1150 155 -#define SAA7134_BOARD_HAUPPAUGE_HVR1110R3 156 +#define SAA7134_BOARD_HAUPPAUGE_HVR1120 156 #define SAA7134_BOARD_AVERMEDIA_STUDIO_507UA 157 #define SAA7134_BOARD_AVERMEDIA_CARDBUS_501 158 #define SAA7134_BOARD_BEHOLD_505RDS 159 -- cgit v0.10.2 From 11db906983fc6e996fcd10073843bd6f1b9a96c3 Mon Sep 17 00:00:00 2001 From: Devin Heitmueller Date: Mon, 3 Aug 2009 22:40:16 -0300 Subject: V4L/DVB (12393): cx88: fix regression in tuning for Geniatech X8000 MT The introduction of the zl10353 i2c gate control broke support for the Geniatech board (which is not behind an i2 gate). Add the needed parameter. Signed-off-by: Devin Heitmueller Signed-off-by: Mauro Carvalho Chehab diff --git a/drivers/media/video/cx88/cx88-dvb.c b/drivers/media/video/cx88/cx88-dvb.c index c44e876..e237b50 100644 --- a/drivers/media/video/cx88/cx88-dvb.c +++ b/drivers/media/video/cx88/cx88-dvb.c @@ -501,6 +501,7 @@ static struct zl10353_config cx88_pinnacle_hybrid_pctv = { static struct zl10353_config cx88_geniatech_x8000_mt = { .demod_address = (0x1e >> 1), .no_tuner = 1, + .disable_i2c_gate_ctrl = 1, }; static struct s5h1411_config dvico_fusionhdtv7_config = { -- cgit v0.10.2 From 93b999239c418cf5c668fd966ac2c5c27b8180dd Mon Sep 17 00:00:00 2001 From: Devin Heitmueller Date: Mon, 3 Aug 2009 22:52:59 -0300 Subject: V4L/DVB (12394): cx88: Disable xc3028 power management for Geniatech x8000 A user discovered that the Geniatech x8000 encountered a regression when the xc3028 power management was introduced. The xc3028 never recovers after setting the powerdown register, which is probably because the xc3028 reset GPIO is not properly configured. Since I do not have access to the hardware and thus cannot determine the correct GPIO configuration, just disable xc3028 power management on this board, which fixes the regression. Thanks to user "ritec" for reporting the issue and testing the fix. Cc: rictec Signed-off-by: Devin Heitmueller Signed-off-by: Mauro Carvalho Chehab diff --git a/drivers/media/common/tuners/tuner-xc2028.c b/drivers/media/common/tuners/tuner-xc2028.c index aa20ce8..f270e60 100644 --- a/drivers/media/common/tuners/tuner-xc2028.c +++ b/drivers/media/common/tuners/tuner-xc2028.c @@ -1119,8 +1119,8 @@ static int xc2028_sleep(struct dvb_frontend *fe) struct xc2028_data *priv = fe->tuner_priv; int rc = 0; - /* Avoid firmware reload on slow devices */ - if (no_poweroff) + /* Avoid firmware reload on slow devices or if PM disabled */ + if (no_poweroff || priv->ctrl.disable_power_mgmt) return 0; tuner_dbg("Putting xc2028/3028 into poweroff mode.\n"); diff --git a/drivers/media/common/tuners/tuner-xc2028.h b/drivers/media/common/tuners/tuner-xc2028.h index 19de792..a90c35d 100644 --- a/drivers/media/common/tuners/tuner-xc2028.h +++ b/drivers/media/common/tuners/tuner-xc2028.h @@ -38,6 +38,7 @@ struct xc2028_ctrl { unsigned int input1:1; unsigned int vhfbw7:1; unsigned int uhfbw8:1; + unsigned int disable_power_mgmt:1; unsigned int demod; enum firmware_type type:2; }; diff --git a/drivers/media/video/cx88/cx88-cards.c b/drivers/media/video/cx88/cx88-cards.c index a5cc1c1..3946530 100644 --- a/drivers/media/video/cx88/cx88-cards.c +++ b/drivers/media/video/cx88/cx88-cards.c @@ -3003,6 +3003,14 @@ void cx88_setup_xc3028(struct cx88_core *core, struct xc2028_ctrl *ctl) case CX88_BOARD_DVICO_FUSIONHDTV_5_PCI_NANO: ctl->demod = XC3028_FE_OREN538; break; + case CX88_BOARD_GENIATECH_X8000_MT: + /* FIXME: For this board, the xc3028 never recovers after being + powered down (the reset GPIO probably is not set properly). + We don't have access to the hardware so we cannot determine + which GPIO is used for xc3028, so just disable power xc3028 + power management for now */ + ctl->disable_power_mgmt = 1; + break; case CX88_BOARD_WINFAST_TV2000_XP_GLOBAL: case CX88_BOARD_PROLINK_PV_GLOBAL_XTREME: case CX88_BOARD_PROLINK_PV_8000GT: -- cgit v0.10.2 From 83053f7fe3eb0b6b1634d24ede87f1daa01ae60c Mon Sep 17 00:00:00 2001 From: Mauro Carvalho Chehab Date: Thu, 6 Aug 2009 21:03:35 -0300 Subject: V4L/DVB (12399): mt9v011: Add support for controlling frame rates Implement g_parm/s_parm ioctls. Those are used to check the current frame rate (in fps) and to set it to a value. In practice, there are only 15 possible different speeds, due to chip limits. Signed-off-by: Mauro Carvalho Chehab diff --git a/drivers/media/video/mt9v011.c b/drivers/media/video/mt9v011.c index c14bf47..8de1316 100644 --- a/drivers/media/video/mt9v011.c +++ b/drivers/media/video/mt9v011.c @@ -156,7 +156,7 @@ static void set_balance(struct v4l2_subdev *sd) mt9v011_write(sd, R2D_MT9V011_RED_GAIN, red_gain); } -static void calc_fps(struct v4l2_subdev *sd) +static void calc_fps(struct v4l2_subdev *sd, u32 *numerator, u32 *denominator) { struct mt9v011 *core = to_mt9v011(sd); unsigned height, width, hblank, vblank, speed; @@ -179,6 +179,51 @@ static void calc_fps(struct v4l2_subdev *sd) v4l2_dbg(1, debug, sd, "Programmed to %u.%03u fps (%d pixel clcks)\n", tmp / 1000, tmp % 1000, t_time); + + if (numerator && denominator) { + *numerator = 1000; + *denominator = (u32)frames_per_ms; + } +} + +static u16 calc_speed(struct v4l2_subdev *sd, u32 numerator, u32 denominator) +{ + struct mt9v011 *core = to_mt9v011(sd); + unsigned height, width, hblank, vblank; + unsigned row_time, line_time; + u64 t_time, speed; + + /* Avoid bogus calculus */ + if (!numerator || !denominator) + return 0; + + height = mt9v011_read(sd, R03_MT9V011_HEIGHT); + width = mt9v011_read(sd, R04_MT9V011_WIDTH); + hblank = mt9v011_read(sd, R05_MT9V011_HBLANK); + vblank = mt9v011_read(sd, R06_MT9V011_VBLANK); + + row_time = width + 113 + hblank; + line_time = height + vblank + 1; + + t_time = core->xtal * ((u64)numerator); + /* round to the closest value */ + t_time += denominator / 2; + do_div(t_time, denominator); + + speed = t_time; + do_div(speed, row_time * line_time); + + /* Avoid having a negative value for speed */ + if (speed < 2) + speed = 0; + else + speed -= 2; + + /* Avoid speed overflow */ + if (speed > 15) + return 15; + + return (u16)speed; } static void set_res(struct v4l2_subdev *sd) @@ -207,7 +252,7 @@ static void set_res(struct v4l2_subdev *sd) mt9v011_write(sd, R03_MT9V011_HEIGHT, core->height); mt9v011_write(sd, R06_MT9V011_VBLANK, 508 - core->height); - calc_fps(sd); + calc_fps(sd, NULL, NULL); }; static int mt9v011_reset(struct v4l2_subdev *sd, u32 val) @@ -322,6 +367,44 @@ static int mt9v011_try_fmt(struct v4l2_subdev *sd, struct v4l2_format *fmt) return 0; } +static int mt9v011_g_parm(struct v4l2_subdev *sd, struct v4l2_streamparm *parms) +{ + struct v4l2_captureparm *cp = &parms->parm.capture; + + if (parms->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) + return -EINVAL; + + memset(cp, 0, sizeof(struct v4l2_captureparm)); + cp->capability = V4L2_CAP_TIMEPERFRAME; + calc_fps(sd, + &cp->timeperframe.numerator, + &cp->timeperframe.denominator); + + return 0; +} + +static int mt9v011_s_parm(struct v4l2_subdev *sd, struct v4l2_streamparm *parms) +{ + struct v4l2_captureparm *cp = &parms->parm.capture; + struct v4l2_fract *tpf = &cp->timeperframe; + u16 speed; + + if (parms->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) + return -EINVAL; + if (cp->extendedmode != 0) + return -EINVAL; + + speed = calc_speed(sd, tpf->numerator, tpf->denominator); + + mt9v011_write(sd, R0A_MT9V011_CLK_SPEED, speed); + v4l2_dbg(1, debug, sd, "Setting speed to %d\n", speed); + + /* Recalculate and update fps info */ + calc_fps(sd, &tpf->numerator, &tpf->denominator); + + return 0; +} + static int mt9v011_s_fmt(struct v4l2_subdev *sd, struct v4l2_format *fmt) { struct v4l2_pix_format *pix = &fmt->fmt.pix; @@ -419,6 +502,8 @@ static const struct v4l2_subdev_video_ops mt9v011_video_ops = { .enum_fmt = mt9v011_enum_fmt, .try_fmt = mt9v011_try_fmt, .s_fmt = mt9v011_s_fmt, + .g_parm = mt9v011_g_parm, + .s_parm = mt9v011_s_parm, }; static const struct v4l2_subdev_ops mt9v011_ops = { -- cgit v0.10.2 From d96ecda63f41350dc93c17ccb72ea24511f207a9 Mon Sep 17 00:00:00 2001 From: Mauro Carvalho Chehab Date: Thu, 6 Aug 2009 21:53:59 -0300 Subject: V4L/DVB (12400): em28xx: Allow changing fps on webcams em28xx doesn't have temporal scaling. However, on webcams, sensors are capable of changing the output rate. So, VIDIOC_[G|S]_PARM ioctls should be passed to the sensor for it to properly set frame rate. Signed-off-by: Mauro Carvalho Chehab diff --git a/drivers/media/video/em28xx/em28xx-video.c b/drivers/media/video/em28xx/em28xx-video.c index ff37b4c..92ee9c6 100644 --- a/drivers/media/video/em28xx/em28xx-video.c +++ b/drivers/media/video/em28xx/em28xx-video.c @@ -846,6 +846,41 @@ static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id *norm) return 0; } +static int vidioc_g_parm(struct file *file, void *priv, + struct v4l2_streamparm *p) +{ + struct em28xx_fh *fh = priv; + struct em28xx *dev = fh->dev; + int rc = 0; + + if (p->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) + return -EINVAL; + + if (dev->board.is_webcam) + rc = v4l2_device_call_until_err(&dev->v4l2_dev, 0, + video, g_parm, p); + else + v4l2_video_std_frame_period(dev->norm, + &p->parm.capture.timeperframe); + + return rc; +} + +static int vidioc_s_parm(struct file *file, void *priv, + struct v4l2_streamparm *p) +{ + struct em28xx_fh *fh = priv; + struct em28xx *dev = fh->dev; + + if (!dev->board.is_webcam) + return -EINVAL; + + if (p->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) + return -EINVAL; + + return v4l2_device_call_until_err(&dev->v4l2_dev, 0, video, s_parm, p); +} + static const char *iname[] = { [EM28XX_VMUX_COMPOSITE1] = "Composite1", [EM28XX_VMUX_COMPOSITE2] = "Composite2", @@ -1885,6 +1920,8 @@ static const struct v4l2_ioctl_ops video_ioctl_ops = { .vidioc_qbuf = vidioc_qbuf, .vidioc_dqbuf = vidioc_dqbuf, .vidioc_s_std = vidioc_s_std, + .vidioc_g_parm = vidioc_g_parm, + .vidioc_s_parm = vidioc_s_parm, .vidioc_enum_input = vidioc_enum_input, .vidioc_g_input = vidioc_g_input, .vidioc_s_input = vidioc_s_input, -- cgit v0.10.2 From 2526ea6e46e41322eb98ac0e9c616273402bd661 Mon Sep 17 00:00:00 2001 From: Mauro Carvalho Chehab Date: Fri, 7 Aug 2009 01:09:54 -0300 Subject: V4L/DVB (12401): m9v011: add vflip/hflip controls to control mirror/upside down Signed-off-by: Mauro Carvalho Chehab diff --git a/drivers/media/video/mt9v011.c b/drivers/media/video/mt9v011.c index 8de1316..cc85f77 100644 --- a/drivers/media/video/mt9v011.c +++ b/drivers/media/video/mt9v011.c @@ -52,13 +52,34 @@ static struct v4l2_queryctrl mt9v011_qctrl[] = { .step = 1, .default_value = 0, .flags = 0, - }, + }, { + .id = V4L2_CID_HFLIP, + .type = V4L2_CTRL_TYPE_BOOLEAN, + .name = "Mirror", + .minimum = 0, + .maximum = 1, + .step = 1, + .default_value = 0, + .flags = 0, + }, { + .id = V4L2_CID_VFLIP, + .type = V4L2_CTRL_TYPE_BOOLEAN, + .name = "Vflip", + .minimum = 0, + .maximum = 1, + .step = 1, + .default_value = 0, + .flags = 0, + }, { + } }; struct mt9v011 { struct v4l2_subdev sd; unsigned width, height; unsigned xtal; + unsigned hflip:1; + unsigned vflip:1; u16 global_gain, red_bal, blue_bal; }; @@ -131,7 +152,6 @@ static const struct i2c_reg_value mt9v011_init_default[] = { { R0A_MT9V011_CLK_SPEED, 0x0000 }, { R1E_MT9V011_DIGITAL_ZOOM, 0x0000 }, - { R20_MT9V011_READ_MODE, 0x1000 }, { R07_MT9V011_OUT_CTRL, 0x0002 }, /* chip enable */ }; @@ -255,6 +275,20 @@ static void set_res(struct v4l2_subdev *sd) calc_fps(sd, NULL, NULL); }; +static void set_read_mode(struct v4l2_subdev *sd) +{ + struct mt9v011 *core = to_mt9v011(sd); + unsigned mode = 0x1000; + + if (core->hflip) + mode |= 0x4000; + + if (core->vflip) + mode |= 0x8000; + + mt9v011_write(sd, R20_MT9V011_READ_MODE, mode); +} + static int mt9v011_reset(struct v4l2_subdev *sd, u32 val) { int i; @@ -265,6 +299,7 @@ static int mt9v011_reset(struct v4l2_subdev *sd, u32 val) set_balance(sd); set_res(sd); + set_read_mode(sd); return 0; }; @@ -285,6 +320,12 @@ static int mt9v011_g_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl) case V4L2_CID_BLUE_BALANCE: ctrl->value = core->blue_bal; return 0; + case V4L2_CID_HFLIP: + ctrl->value = core->hflip ? 1 : 0; + return 0; + case V4L2_CID_VFLIP: + ctrl->value = core->vflip ? 1 : 0; + return 0; } return -EINVAL; } @@ -333,6 +374,14 @@ static int mt9v011_s_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl) case V4L2_CID_BLUE_BALANCE: core->blue_bal = ctrl->value; break; + case V4L2_CID_HFLIP: + core->hflip = ctrl->value; + set_read_mode(sd); + return 0; + case V4L2_CID_VFLIP: + core->vflip = ctrl->value; + set_read_mode(sd); + return 0; default: return -EINVAL; } -- cgit v0.10.2 From 9b4e845c6cbca2bcbfdb87e4d005260604226f45 Mon Sep 17 00:00:00 2001 From: Mauro Carvalho Chehab Date: Fri, 7 Aug 2009 12:08:02 -0300 Subject: V4L/DVB (12402): em28xx: fix: some em2710 chips use a different vendor ID Thanks to hermann pitton for pointing this new variation. Tested-by: hermann pitton Signed-off-by: Mauro Carvalho Chehab diff --git a/Documentation/video4linux/CARDLIST.em28xx b/Documentation/video4linux/CARDLIST.em28xx index 68c236c..e352d75 100644 --- a/Documentation/video4linux/CARDLIST.em28xx +++ b/Documentation/video4linux/CARDLIST.em28xx @@ -1,5 +1,5 @@ 0 -> Unknown EM2800 video grabber (em2800) [eb1a:2800] - 1 -> Unknown EM2750/28xx video grabber (em2820/em2840) [eb1a:2820,eb1a:2821,eb1a:2860,eb1a:2861,eb1a:2870,eb1a:2881,eb1a:2883] + 1 -> Unknown EM2750/28xx video grabber (em2820/em2840) [eb1a:2710,eb1a:2820,eb1a:2821,eb1a:2860,eb1a:2861,eb1a:2870,eb1a:2881,eb1a:2883] 2 -> Terratec Cinergy 250 USB (em2820/em2840) [0ccd:0036] 3 -> Pinnacle PCTV USB 2 (em2820/em2840) [2304:0208] 4 -> Hauppauge WinTV USB 2 (em2820/em2840) [2040:4200,2040:4201] diff --git a/drivers/media/video/em28xx/em28xx-cards.c b/drivers/media/video/em28xx/em28xx-cards.c index d0b033b..6c35d78 100644 --- a/drivers/media/video/em28xx/em28xx-cards.c +++ b/drivers/media/video/em28xx/em28xx-cards.c @@ -1549,6 +1549,8 @@ struct usb_device_id em28xx_id_table[] = { .driver_info = EM2750_BOARD_UNKNOWN }, { USB_DEVICE(0xeb1a, 0x2800), .driver_info = EM2800_BOARD_UNKNOWN }, + { USB_DEVICE(0xeb1a, 0x2710), + .driver_info = EM2820_BOARD_UNKNOWN }, { USB_DEVICE(0xeb1a, 0x2820), .driver_info = EM2820_BOARD_UNKNOWN }, { USB_DEVICE(0xeb1a, 0x2821), -- cgit v0.10.2 From d594317bdc716ccd8c8cf711e3827f9b6e0b766b Mon Sep 17 00:00:00 2001 From: Mauro Carvalho Chehab Date: Fri, 7 Aug 2009 12:13:31 -0300 Subject: V4L/DVB (12403): em28xx: properly reports some em2710 chips As reported by hermann pitton , some devices has a different chip id for em2710 (likely the older ones): em28xx: New device @ 480 Mbps (eb1a:2710, interface 0, class 0) em28xx #0: Identified as EM2710/EM2750/EM2751 webcam grabber (card=22) em28xx #0: em28xx chip ID = 17 Signed-off-by: Mauro Carvalho Chehab diff --git a/drivers/media/video/em28xx/em28xx-cards.c b/drivers/media/video/em28xx/em28xx-cards.c index 6c35d78..c9e420e 100644 --- a/drivers/media/video/em28xx/em28xx-cards.c +++ b/drivers/media/video/em28xx/em28xx-cards.c @@ -1840,11 +1840,14 @@ void em28xx_pre_card_setup(struct em28xx *dev) dev->chip_id = rc; switch (dev->chip_id) { + case CHIP_ID_EM2710: + em28xx_info("chip ID is em2710\n"); + break; case CHIP_ID_EM2750: em28xx_info("chip ID is em2750\n"); break; case CHIP_ID_EM2820: - em28xx_info("chip ID is em2710 or em2820\n"); + em28xx_info("chip ID is em2820 (or em2710)\n"); break; case CHIP_ID_EM2840: em28xx_info("chip ID is em2840\n"); diff --git a/drivers/media/video/em28xx/em28xx-reg.h b/drivers/media/video/em28xx/em28xx-reg.h index a2676d6..6bf84bd 100644 --- a/drivers/media/video/em28xx/em28xx-reg.h +++ b/drivers/media/video/em28xx/em28xx-reg.h @@ -176,7 +176,8 @@ /* FIXME: Need to be populated with the other chip ID's */ enum em28xx_chip_id { - CHIP_ID_EM2820 = 18, /* Also used by em2710 */ + CHIP_ID_EM2710 = 17, + CHIP_ID_EM2820 = 18, /* Also used by some em2710 */ CHIP_ID_EM2840 = 20, CHIP_ID_EM2750 = 33, CHIP_ID_EM2860 = 34, -- cgit v0.10.2 From c2a6b54a9cf08d4ffeb75d70603c4a5d03ac97ad Mon Sep 17 00:00:00 2001 From: Mauro Carvalho Chehab Date: Sat, 8 Aug 2009 03:14:55 -0300 Subject: V4L/DVB (12406): em28xx: fix: don't do image interlacing on webcams Due to historical reasons, em28xx driver gets two consecutive frames and fold them into an unique framing, doing interlacing. While this works fine for TV images, this produces two bad effects with webcams: 1) webcam images are progressive. Merging two consecutive images produce interlacing artifacts on the image; 2) since the driver needs to get two frames, it reduces the maximum frame rate by two. Signed-off-by: Mauro Carvalho Chehab diff --git a/drivers/media/video/em28xx/em28xx-cards.c b/drivers/media/video/em28xx/em28xx-cards.c index c9e420e..9011a49 100644 --- a/drivers/media/video/em28xx/em28xx-cards.c +++ b/drivers/media/video/em28xx/em28xx-cards.c @@ -2502,6 +2502,10 @@ static int em28xx_init_dev(struct em28xx **devhandle, struct usb_device *udev, if (em28xx_hint_sensor(dev) < 0) dev->board.is_webcam = 0; + /* It makes no sense to use de-interlacing mode on webcams */ + if (dev->board.is_webcam) + dev->progressive = 1; + /* Do board specific init and eeprom reading */ em28xx_card_setup(dev); diff --git a/drivers/media/video/em28xx/em28xx-core.c b/drivers/media/video/em28xx/em28xx-core.c index 5b78e19..339fffd 100644 --- a/drivers/media/video/em28xx/em28xx-core.c +++ b/drivers/media/video/em28xx/em28xx-core.c @@ -720,7 +720,10 @@ int em28xx_resolution_set(struct em28xx *dev) { int width, height; width = norm_maxw(dev); - height = norm_maxh(dev) >> 1; + height = norm_maxh(dev); + + if (!dev->progressive) + height >>= norm_maxh(dev); em28xx_set_outfmt(dev); diff --git a/drivers/media/video/em28xx/em28xx-video.c b/drivers/media/video/em28xx/em28xx-video.c index 92ee9c6..ab079d9 100644 --- a/drivers/media/video/em28xx/em28xx-video.c +++ b/drivers/media/video/em28xx/em28xx-video.c @@ -194,15 +194,24 @@ static void em28xx_copy_video(struct em28xx *dev, startread = p; remain = len; - /* Interlaces frame */ - if (buf->top_field) + if (dev->progressive) fieldstart = outp; - else - fieldstart = outp + bytesperline; + else { + /* Interlaces two half frames */ + if (buf->top_field) + fieldstart = outp; + else + fieldstart = outp + bytesperline; + } linesdone = dma_q->pos / bytesperline; currlinedone = dma_q->pos % bytesperline; - offset = linesdone * bytesperline * 2 + currlinedone; + + if (dev->progressive) + offset = linesdone * bytesperline + currlinedone; + else + offset = linesdone * bytesperline * 2 + currlinedone; + startwrite = fieldstart + offset; lencopy = bytesperline - currlinedone; lencopy = lencopy > remain ? remain : lencopy; @@ -376,7 +385,7 @@ static inline int em28xx_isoc_copy(struct em28xx *dev, struct urb *urb) em28xx_isocdbg("Video frame %d, length=%i, %s\n", p[2], len, (p[2] & 1) ? "odd" : "even"); - if (!(p[2] & 1)) { + if (dev->progressive || !(p[2] & 1)) { if (buf != NULL) buffer_filled(dev, dma_q, buf); get_next_buf(dma_q, &buf); @@ -689,7 +698,10 @@ static int vidioc_g_fmt_vid_cap(struct file *file, void *priv, f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; /* FIXME: TOP? NONE? BOTTOM? ALTENATE? */ - f->fmt.pix.field = dev->interlaced ? + if (dev->progressive) + f->fmt.pix.field = V4L2_FIELD_NONE; + else + f->fmt.pix.field = dev->interlaced ? V4L2_FIELD_INTERLACED : V4L2_FIELD_TOP; mutex_unlock(&dev->lock); @@ -753,7 +765,11 @@ static int vidioc_try_fmt_vid_cap(struct file *file, void *priv, f->fmt.pix.bytesperline = (dev->width * fmt->depth + 7) >> 3; f->fmt.pix.sizeimage = f->fmt.pix.bytesperline * height; f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; - f->fmt.pix.field = V4L2_FIELD_INTERLACED; + if (dev->progressive) + f->fmt.pix.field = V4L2_FIELD_NONE; + else + f->fmt.pix.field = dev->interlaced ? + V4L2_FIELD_INTERLACED : V4L2_FIELD_TOP; return 0; } @@ -1659,6 +1675,7 @@ static int em28xx_v4l2_open(struct file *filp) struct em28xx *dev; enum v4l2_buf_type fh_type; struct em28xx_fh *fh; + enum v4l2_field field; dev = em28xx_get_device(minor, &fh_type, &radio); @@ -1700,8 +1717,13 @@ static int em28xx_v4l2_open(struct file *filp) dev->users++; + if (dev->progressive) + field = V4L2_FIELD_NONE; + else + field = V4L2_FIELD_INTERLACED; + videobuf_queue_vmalloc_init(&fh->vb_vidq, &em28xx_video_qops, - NULL, &dev->slock, fh->type, V4L2_FIELD_INTERLACED, + NULL, &dev->slock, fh->type, field, sizeof(struct em28xx_buffer), fh); mutex_unlock(&dev->lock); diff --git a/drivers/media/video/em28xx/em28xx.h b/drivers/media/video/em28xx/em28xx.h index 45bd513..8c2dc38 100644 --- a/drivers/media/video/em28xx/em28xx.h +++ b/drivers/media/video/em28xx/em28xx.h @@ -484,6 +484,9 @@ struct em28xx { int sensor_xres, sensor_yres; int sensor_xtal; + /* Allows progressive (e. g. non-interlaced) mode */ + int progressive; + /* Vinmode/Vinctl used at the driver */ int vinmode, vinctl; -- cgit v0.10.2 From 970cff36c0850e8193ac1162e42c7c11001b872d Mon Sep 17 00:00:00 2001 From: Mauro Carvalho Chehab Date: Sat, 8 Aug 2009 03:28:41 -0300 Subject: V4L/DVB (12407): em28xx: Adjust Silvercrest xtal frequency We don't know the xtal frequency of Silvercrest, but we need to have some value in order to allow controlling the frame rate frequency. The value is probably still wrong, since the manufacturer announces this device as being capable of 30fps, but the maximum we can get is 13.5 fps. Signed-off-by: Mauro Carvalho Chehab diff --git a/drivers/media/video/em28xx/em28xx-cards.c b/drivers/media/video/em28xx/em28xx-cards.c index 9011a49..fc46032 100644 --- a/drivers/media/video/em28xx/em28xx-cards.c +++ b/drivers/media/video/em28xx/em28xx-cards.c @@ -1785,7 +1785,7 @@ static int em28xx_hint_sensor(struct em28xx *dev) dev->em28xx_sensor = EM28XX_MT9V011; dev->sensor_xres = 640; dev->sensor_yres = 480; - dev->sensor_xtal = 6300000; + dev->sensor_xtal = 12150000; /* probably means GRGB 16 bit bayer */ dev->vinmode = 0x0d; -- cgit v0.10.2 From fcd20e3c369caf7a3fec300c9c183b25a06e21b2 Mon Sep 17 00:00:00 2001 From: Mauro Carvalho Chehab Date: Mon, 10 Aug 2009 02:57:57 -0300 Subject: V4L/DVB (12410): em28xx: Move the non-board dependent part to be outside em28xx_pre_card_setup() em28xx_pre_card_setup() is meant to contain board-specific initialization. Also, as autodetection sometimes occur only after having i2c bus enabled, this function may need to be called later. Moving those setups to happen outside the function avoids calling it twice without need and without duplicating output lines at dmesg. Signed-off-by: Mauro Carvalho Chehab diff --git a/drivers/media/video/em28xx/em28xx-cards.c b/drivers/media/video/em28xx/em28xx-cards.c index fc46032..6b2b5d3 100644 --- a/drivers/media/video/em28xx/em28xx-cards.c +++ b/drivers/media/video/em28xx/em28xx-cards.c @@ -1821,63 +1821,6 @@ static int em28xx_hint_sensor(struct em28xx *dev) */ void em28xx_pre_card_setup(struct em28xx *dev) { - int rc; - - em28xx_set_model(dev); - - em28xx_info("Identified as %s (card=%d)\n", - dev->board.name, dev->model); - - /* Set the default GPO/GPIO for legacy devices */ - dev->reg_gpo_num = EM2880_R04_GPO; - dev->reg_gpio_num = EM28XX_R08_GPIO; - - dev->wait_after_write = 5; - - /* Based on the Chip ID, set the device configuration */ - rc = em28xx_read_reg(dev, EM28XX_R0A_CHIPID); - if (rc > 0) { - dev->chip_id = rc; - - switch (dev->chip_id) { - case CHIP_ID_EM2710: - em28xx_info("chip ID is em2710\n"); - break; - case CHIP_ID_EM2750: - em28xx_info("chip ID is em2750\n"); - break; - case CHIP_ID_EM2820: - em28xx_info("chip ID is em2820 (or em2710)\n"); - break; - case CHIP_ID_EM2840: - em28xx_info("chip ID is em2840\n"); - break; - case CHIP_ID_EM2860: - em28xx_info("chip ID is em2860\n"); - break; - case CHIP_ID_EM2870: - em28xx_info("chip ID is em2870\n"); - dev->wait_after_write = 0; - break; - case CHIP_ID_EM2874: - em28xx_info("chip ID is em2874\n"); - dev->reg_gpio_num = EM2874_R80_GPIO; - dev->wait_after_write = 0; - break; - case CHIP_ID_EM2883: - em28xx_info("chip ID is em2882/em2883\n"); - dev->wait_after_write = 0; - break; - default: - em28xx_info("em28xx chip ID = %d\n", dev->chip_id); - } - } - - /* Prepopulate cached GPO register content */ - rc = em28xx_read_reg(dev, dev->reg_gpo_num); - if (rc >= 0) - dev->reg_gpo = rc; - /* Set the initial XCLK and I2C clock values based on the board definition */ em28xx_write_reg(dev, EM28XX_R0F_XCLK, dev->board.xclk & 0x7f); @@ -2443,7 +2386,7 @@ static int em28xx_init_dev(struct em28xx **devhandle, struct usb_device *udev, int minor) { struct em28xx *dev = *devhandle; - int retval = -ENOMEM; + int retval; int errCode; dev->udev = udev; @@ -2460,6 +2403,58 @@ static int em28xx_init_dev(struct em28xx **devhandle, struct usb_device *udev, dev->em28xx_read_reg_req = em28xx_read_reg_req; dev->board.is_em2800 = em28xx_boards[dev->model].is_em2800; + em28xx_set_model(dev); + + /* Set the default GPO/GPIO for legacy devices */ + dev->reg_gpo_num = EM2880_R04_GPO; + dev->reg_gpio_num = EM28XX_R08_GPIO; + + dev->wait_after_write = 5; + + /* Based on the Chip ID, set the device configuration */ + retval = em28xx_read_reg(dev, EM28XX_R0A_CHIPID); + if (retval > 0) { + dev->chip_id = retval; + + switch (dev->chip_id) { + case CHIP_ID_EM2710: + em28xx_info("chip ID is em2710\n"); + break; + case CHIP_ID_EM2750: + em28xx_info("chip ID is em2750\n"); + break; + case CHIP_ID_EM2820: + em28xx_info("chip ID is em2820 (or em2710)\n"); + break; + case CHIP_ID_EM2840: + em28xx_info("chip ID is em2840\n"); + break; + case CHIP_ID_EM2860: + em28xx_info("chip ID is em2860\n"); + break; + case CHIP_ID_EM2870: + em28xx_info("chip ID is em2870\n"); + dev->wait_after_write = 0; + break; + case CHIP_ID_EM2874: + em28xx_info("chip ID is em2874\n"); + dev->reg_gpio_num = EM2874_R80_GPIO; + dev->wait_after_write = 0; + break; + case CHIP_ID_EM2883: + em28xx_info("chip ID is em2882/em2883\n"); + dev->wait_after_write = 0; + break; + default: + em28xx_info("em28xx chip ID = %d\n", dev->chip_id); + } + } + + /* Prepopulate cached GPO register content */ + retval = em28xx_read_reg(dev, dev->reg_gpo_num); + if (retval >= 0) + dev->reg_gpo = retval; + em28xx_pre_card_setup(dev); if (!dev->board.is_em2800) { -- cgit v0.10.2 From 3d3215c4e4cfca74e5805a8506d50a6752172e81 Mon Sep 17 00:00:00 2001 From: Mauro Carvalho Chehab Date: Mon, 10 Aug 2009 10:29:27 -0300 Subject: V4L/DVB (12411): em28xx: Fix artifacts with Silvercrest webcam Silvercrest mt9v011 sensor produces a 640x480 image. However, previously, the code were getting only half of the lines and merging two consecutive frames to "produce" a 640x480 image. With the addition of progressive mode, now em28xx is working with a full image. However, when the number of lines is bigger than 240, the beginning of some odd lines are filled with blank. After lots of testing, and physically checking the device for a Xtal, it was noticed experimentally that mt9v011 is using em28xx XCLK as its clock. Due to that, changing XCLK value changes the maximum speed of the stream. At the tests, it were possible to produce up to 32 fps, using a 30 MHz XCLK. However, at that rate, the artifacts happen even at 320x240. Lower values of XCLK produces artifacts only at 640x480. At some values of xclk (for example XCLKK = 6 MHz, 640x480), it is possible to see an invalid sucession of artifacts with this pattern: .xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx ..xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx ...xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx ....xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx .xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx ..xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx ...xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx ....xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx (where the dots represent the blanked pixels) So, it seems that a waveform in the format of a ramp is interferring at the image. The cause of this interference is currently unknown. Some possibilities are: - electrical interference (maybe this device is broken?); - some issue at mt9v011 programming; - some bug at em28xx chip. So, for now, let's be conservative and use a value of XCLK that we know for sure that it won't cause artifacts. As I'm waiting for more of such devices with different em28xx chipset revisions, I'll have the opportunity to double check the issue with other pieces of hardware. Later patches can vary XCLK depending on the vertical resolutions, if a proper fix is not discovered. Signed-off-by: Mauro Carvalho Chehab diff --git a/drivers/media/video/em28xx/em28xx-cards.c b/drivers/media/video/em28xx/em28xx-cards.c index 6b2b5d3..54429b6 100644 --- a/drivers/media/video/em28xx/em28xx-cards.c +++ b/drivers/media/video/em28xx/em28xx-cards.c @@ -218,7 +218,7 @@ static struct em28xx_reg_seq silvercrest_reg_seq[] = { struct em28xx_board em28xx_boards[] = { [EM2750_BOARD_UNKNOWN] = { .name = "EM2710/EM2750/EM2751 webcam grabber", - .xclk = EM28XX_XCLK_FREQUENCY_48MHZ, + .xclk = EM28XX_XCLK_FREQUENCY_20MHZ, .tuner_type = TUNER_ABSENT, .is_webcam = 1, .input = { { @@ -1768,6 +1768,7 @@ static int em28xx_hint_sensor(struct em28xx *dev) __be16 version_be; u16 version; + /* Micron sensor detection */ dev->i2c_client.addr = 0xba >> 1; cmd = 0; i2c_master_send(&dev->i2c_client, &cmd, 1); @@ -1776,16 +1777,27 @@ static int em28xx_hint_sensor(struct em28xx *dev) return -EINVAL; version = be16_to_cpu(version_be); - switch (version) { case 0x8232: /* mt9v011 640x480 1.3 Mpix sensor */ case 0x8243: /* mt9v011 rev B 640x480 1.3 Mpix sensor */ dev->model = EM2820_BOARD_SILVERCREST_WEBCAM; + em28xx_set_model(dev); + sensor_name = "mt9v011"; dev->em28xx_sensor = EM28XX_MT9V011; dev->sensor_xres = 640; dev->sensor_yres = 480; - dev->sensor_xtal = 12150000; + /* + * FIXME: mt9v011 uses I2S speed as xtal clk - at least with + * the Silvercrest cam I have here for testing - for higher + * resolutions, a high clock cause horizontal artifacts, so we + * need to use a lower xclk frequency. + * Yet, it would be possible to adjust xclk depending on the + * desired resolution, since this affects directly the + * frame rate. + */ + dev->board.xclk = EM28XX_XCLK_FREQUENCY_4_3MHZ; + dev->sensor_xtal = 4300000; /* probably means GRGB 16 bit bayer */ dev->vinmode = 0x0d; @@ -1794,6 +1806,8 @@ static int em28xx_hint_sensor(struct em28xx *dev) break; case 0x8431: dev->model = EM2750_BOARD_UNKNOWN; + em28xx_set_model(dev); + sensor_name = "mt9m001"; dev->em28xx_sensor = EM28XX_MT9M001; em28xx_initialize_mt9m001(dev); @@ -1810,6 +1824,9 @@ static int em28xx_hint_sensor(struct em28xx *dev) return -EINVAL; } + /* Setup webcam defaults */ + em28xx_pre_card_setup(dev); + em28xx_errdev("Sensor is %s, using model %s entry.\n", sensor_name, em28xx_boards[dev->model].name); @@ -2169,7 +2186,20 @@ void em28xx_register_i2c_ir(struct em28xx *dev) void em28xx_card_setup(struct em28xx *dev) { - em28xx_set_model(dev); + /* + * If the device can be a webcam, seek for a sensor. + * If sensor is not found, then it isn't a webcam. + */ + if (dev->board.is_webcam) { + if (em28xx_hint_sensor(dev) < 0) + dev->board.is_webcam = 0; + else + dev->progressive = 1; + } else + em28xx_set_model(dev); + + em28xx_info("Identified as %s (card=%d)\n", + dev->board.name, dev->model); dev->tuner_type = em28xx_boards[dev->model].tuner_type; if (em28xx_boards[dev->model].tuner_addr) @@ -2489,18 +2519,6 @@ static int em28xx_init_dev(struct em28xx **devhandle, struct usb_device *udev, dev->vinmode = 0x10; dev->vinctl = 0x11; - /* - * If the device can be a webcam, seek for a sensor. - * If sensor is not found, then it isn't a webcam. - */ - if (dev->board.is_webcam) - if (em28xx_hint_sensor(dev) < 0) - dev->board.is_webcam = 0; - - /* It makes no sense to use de-interlacing mode on webcams */ - if (dev->board.is_webcam) - dev->progressive = 1; - /* Do board specific init and eeprom reading */ em28xx_card_setup(dev); -- cgit v0.10.2 From d7612c86d099939503c2f849a523dbca753d1935 Mon Sep 17 00:00:00 2001 From: Mauro Carvalho Chehab Date: Fri, 7 Aug 2009 18:43:00 -0300 Subject: V4L/DVB (12405): em28xx-cards: move register 0x13 setting to the proper place Register 0x13 seems to be a sort of image control, maybe gamma, white level or black level. Lower values produce better images, while higher values increases the contrast and shifts colors to green. 0xff produces a black image. This register is not Silvercrest-specific, so its code should be moved to a better place. If this register is left alone, a random value can be found at the register, producing weird results. While here, let's remove register 0x0d, as it had no noticed effect at the image. Signed-off-by: Mauro Carvalho Chehab diff --git a/drivers/media/video/em28xx/em28xx-cards.c b/drivers/media/video/em28xx/em28xx-cards.c index 54429b6..ed281f5 100644 --- a/drivers/media/video/em28xx/em28xx-cards.c +++ b/drivers/media/video/em28xx/em28xx-cards.c @@ -2273,10 +2273,6 @@ void em28xx_card_setup(struct em28xx *dev) em28xx_gpio_set(dev, dev->board.tuner_gpio); em28xx_set_mode(dev, EM28XX_ANALOG_MODE); break; - case EM2820_BOARD_SILVERCREST_WEBCAM: - /* FIXME: need to document the registers bellow */ - em28xx_write_reg(dev, 0x0d, 0x42); - em28xx_write_reg(dev, 0x13, 0x08); } if (dev->board.has_snapshot_button) diff --git a/drivers/media/video/em28xx/em28xx-core.c b/drivers/media/video/em28xx/em28xx-core.c index 339fffd..98e140b 100644 --- a/drivers/media/video/em28xx/em28xx-core.c +++ b/drivers/media/video/em28xx/em28xx-core.c @@ -632,6 +632,9 @@ int em28xx_capture_start(struct em28xx *dev, int start) return rc; } + if (dev->board.is_webcam) + rc = em28xx_write_reg(dev, 0x13, 0x0c); + /* enable video capture */ rc = em28xx_write_reg(dev, 0x48, 0x00); -- cgit v0.10.2 From 7d2e2e35fb50f381c9398e481aac1e1729765ae3 Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Wed, 5 Aug 2009 12:58:47 -0300 Subject: V4L/DVB (12422): media/zr364xx: fix build errors Fix build errors in zr364xx by adding selects: zr364xx.c:(.text+0x195ed7): undefined reference to `videobuf_streamon' zr364xx.c:(.text+0x196030): undefined reference to `videobuf_dqbuf' zr364xx.c:(.text+0x1960c4): undefined reference to `videobuf_qbuf' zr364xx.c:(.text+0x196123): undefined reference to `videobuf_querybuf' zr364xx.c:(.text+0x196182): undefined reference to `videobuf_reqbufs' zr364xx.c:(.text+0x196224): undefined reference to `videobuf_queue_is_busy' zr364xx.c:(.text+0x196390): undefined reference to `videobuf_vmalloc_free' zr364xx.c:(.text+0x196571): undefined reference to `videobuf_iolock' zr364xx.c:(.text+0x196678): undefined reference to `videobuf_mmap_mapper' zr364xx.c:(.text+0x196760): undefined reference to `videobuf_poll_stream' zr364xx.c:(.text+0x19689a): undefined reference to `videobuf_read_one' zr364xx.c:(.text+0x1969ec): undefined reference to `videobuf_mmap_free' zr364xx.c:(.text+0x197862): undefined reference to `videobuf_queue_vmalloc_init' zr364xx.c:(.text+0x197a28): undefined reference to `videobuf_streamoff' zr364xx.c:(.text+0x198203): undefined reference to `videobuf_to_vmalloc' zr364xx.c:(.text+0x198603): undefined reference to `videobuf_streamoff' drivers/built-in.o: In function `free_buffer': zr364xx.c:(.text+0x19930c): undefined reference to `videobuf_vmalloc_free' drivers/built-in.o: In function `zr364xx_open': zr364xx.c:(.text+0x19a7de): undefined reference to `videobuf_queue_vmalloc_init' drivers/built-in.o: In function `read_pipe_completion': zr364xx.c:(.text+0x19b17f): undefined reference to `videobuf_to_vmalloc' Signed-off-by: Randy Dunlap Signed-off-by: Douglas Schilling Landgraf Signed-off-by: Mauro Carvalho Chehab diff --git a/drivers/media/video/Kconfig b/drivers/media/video/Kconfig index 84b6fc1..dcf9fa9 100644 --- a/drivers/media/video/Kconfig +++ b/drivers/media/video/Kconfig @@ -920,6 +920,8 @@ source "drivers/media/video/pwc/Kconfig" config USB_ZR364XX tristate "USB ZR364XX Camera support" depends on VIDEO_V4L2 + select VIDEOBUF_GEN + select VIDEOBUF_VMALLOC ---help--- Say Y here if you want to connect this type of camera to your computer's USB port. -- cgit v0.10.2 From 2dd54a54c19d0e5b50f4e1c591653772ead9d4a1 Mon Sep 17 00:00:00 2001 From: Guennadi Liakhovetski Date: Wed, 5 Aug 2009 20:06:31 -0300 Subject: V4L/DVB (12424): soc-camera: fix recursive locking in .buf_queue() The .buf_queue() V4L2 driver method is called under spinlock_irqsave(q->irqlock,...), don't take the lock again inside the function. Reported-by: Antonio Ospite Signed-off-by: Guennadi Liakhovetski Signed-off-by: Mauro Carvalho Chehab diff --git a/drivers/media/video/mx1_camera.c b/drivers/media/video/mx1_camera.c index 2d07520..736c31d 100644 --- a/drivers/media/video/mx1_camera.c +++ b/drivers/media/video/mx1_camera.c @@ -234,6 +234,7 @@ static int mx1_camera_setup_dma(struct mx1_camera_dev *pcdev) return ret; } +/* Called under spinlock_irqsave(&pcdev->lock, ...) */ static void mx1_videobuf_queue(struct videobuf_queue *vq, struct videobuf_buffer *vb) { @@ -241,13 +242,10 @@ static void mx1_videobuf_queue(struct videobuf_queue *vq, struct soc_camera_host *ici = to_soc_camera_host(icd->dev.parent); struct mx1_camera_dev *pcdev = ici->priv; struct mx1_buffer *buf = container_of(vb, struct mx1_buffer, vb); - unsigned long flags; dev_dbg(&icd->dev, "%s (vb=0x%p) 0x%08lx %d\n", __func__, vb, vb->baddr, vb->bsize); - spin_lock_irqsave(&pcdev->lock, flags); - list_add_tail(&vb->queue, &pcdev->capture); vb->state = VIDEOBUF_ACTIVE; @@ -264,8 +262,6 @@ static void mx1_videobuf_queue(struct videobuf_queue *vq, __raw_writel(temp, pcdev->base + CSICR1); } } - - spin_unlock_irqrestore(&pcdev->lock, flags); } static void mx1_videobuf_release(struct videobuf_queue *vq, diff --git a/drivers/media/video/mx3_camera.c b/drivers/media/video/mx3_camera.c index e605c07..9770cb7 100644 --- a/drivers/media/video/mx3_camera.c +++ b/drivers/media/video/mx3_camera.c @@ -332,7 +332,10 @@ static enum pixel_fmt fourcc_to_ipu_pix(__u32 fourcc) } } -/* Called with .vb_lock held */ +/* + * Called with .vb_lock mutex held and + * under spinlock_irqsave(&mx3_cam->lock, ...) + */ static void mx3_videobuf_queue(struct videobuf_queue *vq, struct videobuf_buffer *vb) { @@ -346,7 +349,8 @@ static void mx3_videobuf_queue(struct videobuf_queue *vq, struct idmac_video_param *video = &ichan->params.video; const struct soc_camera_data_format *data_fmt = icd->current_fmt; dma_cookie_t cookie; - unsigned long flags; + + BUG_ON(!irqs_disabled()); /* This is the configuration of one sg-element */ video->out_pixel_fmt = fourcc_to_ipu_pix(data_fmt->fourcc); @@ -359,8 +363,6 @@ static void mx3_videobuf_queue(struct videobuf_queue *vq, memset((void *)vb->baddr, 0xaa, vb->bsize); #endif - spin_lock_irqsave(&mx3_cam->lock, flags); - list_add_tail(&vb->queue, &mx3_cam->capture); if (!mx3_cam->active) { @@ -370,24 +372,23 @@ static void mx3_videobuf_queue(struct videobuf_queue *vq, vb->state = VIDEOBUF_QUEUED; } - spin_unlock_irqrestore(&mx3_cam->lock, flags); + spin_unlock_irq(&mx3_cam->lock); cookie = txd->tx_submit(txd); dev_dbg(&icd->dev, "Submitted cookie %d DMA 0x%08x\n", cookie, sg_dma_address(&buf->sg)); + + spin_lock_irq(&mx3_cam->lock); + if (cookie >= 0) return; /* Submit error */ vb->state = VIDEOBUF_PREPARED; - spin_lock_irqsave(&mx3_cam->lock, flags); - list_del_init(&vb->queue); if (mx3_cam->active == buf) mx3_cam->active = NULL; - - spin_unlock_irqrestore(&mx3_cam->lock, flags); } /* Called with .vb_lock held */ diff --git a/drivers/media/video/pxa_camera.c b/drivers/media/video/pxa_camera.c index e048d25..016bb45 100644 --- a/drivers/media/video/pxa_camera.c +++ b/drivers/media/video/pxa_camera.c @@ -612,6 +612,7 @@ static void pxa_camera_stop_capture(struct pxa_camera_dev *pcdev) dev_dbg(pcdev->soc_host.dev, "%s\n", __func__); } +/* Called under spinlock_irqsave(&pcdev->lock, ...) */ static void pxa_videobuf_queue(struct videobuf_queue *vq, struct videobuf_buffer *vb) { @@ -619,13 +620,10 @@ static void pxa_videobuf_queue(struct videobuf_queue *vq, struct soc_camera_host *ici = to_soc_camera_host(icd->dev.parent); struct pxa_camera_dev *pcdev = ici->priv; struct pxa_buffer *buf = container_of(vb, struct pxa_buffer, vb); - unsigned long flags; dev_dbg(&icd->dev, "%s (vb=0x%p) 0x%08lx %d active=%p\n", __func__, vb, vb->baddr, vb->bsize, pcdev->active); - spin_lock_irqsave(&pcdev->lock, flags); - list_add_tail(&vb->queue, &pcdev->capture); vb->state = VIDEOBUF_ACTIVE; @@ -633,8 +631,6 @@ static void pxa_videobuf_queue(struct videobuf_queue *vq, if (!pcdev->active) pxa_camera_start_capture(pcdev); - - spin_unlock_irqrestore(&pcdev->lock, flags); } static void pxa_videobuf_release(struct videobuf_queue *vq, diff --git a/drivers/media/video/sh_mobile_ceu_camera.c b/drivers/media/video/sh_mobile_ceu_camera.c index 0db88a5..e86878d 100644 --- a/drivers/media/video/sh_mobile_ceu_camera.c +++ b/drivers/media/video/sh_mobile_ceu_camera.c @@ -282,27 +282,24 @@ out: return ret; } +/* Called under spinlock_irqsave(&pcdev->lock, ...) */ static void sh_mobile_ceu_videobuf_queue(struct videobuf_queue *vq, struct videobuf_buffer *vb) { struct soc_camera_device *icd = vq->priv_data; struct soc_camera_host *ici = to_soc_camera_host(icd->dev.parent); struct sh_mobile_ceu_dev *pcdev = ici->priv; - unsigned long flags; dev_dbg(&icd->dev, "%s (vb=0x%p) 0x%08lx %zd\n", __func__, vb, vb->baddr, vb->bsize); vb->state = VIDEOBUF_QUEUED; - spin_lock_irqsave(&pcdev->lock, flags); list_add_tail(&vb->queue, &pcdev->capture); if (!pcdev->active) { pcdev->active = vb; sh_mobile_ceu_capture(pcdev); } - - spin_unlock_irqrestore(&pcdev->lock, flags); } static void sh_mobile_ceu_videobuf_release(struct videobuf_queue *vq, -- cgit v0.10.2 From 99362e1ece9f9651af1b849a01d91b9df1e0db2c Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Fri, 7 Aug 2009 07:10:52 -0300 Subject: V4L/DVB (12428): hdpvr: add missing initialization of current_norm Drivers should either set current_norm or supply a g_std callback. The hdpvr driver does neither. Since it initializes to a 60 Hz format I've initialized the current_norm to NTSC | PAL_M | PAL_60 which is the 60 Hz subset of tvnorms. Cc: Janne Grunau Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab diff --git a/drivers/media/video/hdpvr/hdpvr-video.c b/drivers/media/video/hdpvr/hdpvr-video.c index ccd47f5..d678765 100644 --- a/drivers/media/video/hdpvr/hdpvr-video.c +++ b/drivers/media/video/hdpvr/hdpvr-video.c @@ -1220,6 +1220,8 @@ static const struct video_device hdpvr_video_template = { V4L2_STD_PAL_G | V4L2_STD_PAL_H | V4L2_STD_PAL_I | V4L2_STD_PAL_D | V4L2_STD_PAL_M | V4L2_STD_PAL_N | V4L2_STD_PAL_60, + .current_norm = V4L2_STD_NTSC | V4L2_STD_PAL_M | + V4L2_STD_PAL_60, }; int hdpvr_register_videodev(struct hdpvr_device *dev, struct device *parent, -- cgit v0.10.2 From 9bedc7f7fe803c17d26b5fcf5786b50a7cf40def Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Fri, 7 Aug 2009 07:28:16 -0300 Subject: V4L/DVB (12429): v4l2-ioctl: fix G_STD and G_PARM default handlers The v4l core supplies default handlers for G_STD and G_PARM. However, both default handlers are buggy. This patch fixes the following: 1) If no g_std is supplied and current_norm == 0, then this driver does not support TV video standards (e.g. a radio or webcam driver). Return -EINVAL. This ensures that there is no bogus VIDIOC_G_STD support for such drivers. 2) The default VIDIOC_G_PARM handler used current_norm instead of first checking if the driver supported g_std and calling that to get the norm. It also didn't check if current_norm was 0, since in that case the driver does not support TV standards (or no standard was set at all) and the default handler should return -EINVAL. Note that I am very unhappy with these default handlers: I think they basically behave like some very strange and unexpected side-effect. Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab diff --git a/drivers/media/video/v4l2-ioctl.c b/drivers/media/video/v4l2-ioctl.c index be64a50..f2afc4e 100644 --- a/drivers/media/video/v4l2-ioctl.c +++ b/drivers/media/video/v4l2-ioctl.c @@ -1081,8 +1081,10 @@ static long __video_do_ioctl(struct file *file, /* Calls the specific handler */ if (ops->vidioc_g_std) ret = ops->vidioc_g_std(file, fh, id); - else + else if (vfd->current_norm) *id = vfd->current_norm; + else + ret = -EINVAL; if (!ret) dbgarg(cmd, "std=0x%08Lx\n", (long long unsigned)*id); @@ -1553,12 +1555,19 @@ static long __video_do_ioctl(struct file *file, break; ret = ops->vidioc_g_parm(file, fh, p); } else { + v4l2_std_id std = vfd->current_norm; + if (p->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) return -EINVAL; - v4l2_video_std_frame_period(vfd->current_norm, - &p->parm.capture.timeperframe); ret = 0; + if (ops->vidioc_g_std) + ret = ops->vidioc_g_std(file, fh, &std); + else if (std == 0) + ret = -EINVAL; + if (ret == 0) + v4l2_video_std_frame_period(std, + &p->parm.capture.timeperframe); } dbgarg(cmd, "type=%d\n", p->type); -- cgit v0.10.2 From 01a5fd6ff3fbae9a599d3334a8cca0f00865e360 Mon Sep 17 00:00:00 2001 From: Devin Heitmueller Date: Fri, 7 Aug 2009 09:25:06 -0300 Subject: V4L/DVB (12432): em28xx: fix regression in Empire DualTV digital tuning Restore support for digital tuning caused by regression during introduction of disable_i2c_gate parameter to zl10353 driver. Thanks to user "Xwang" for reporting the problem and testing the fix Cc: Xwang Signed-off-by: Devin Heitmueller Signed-off-by: Mauro Carvalho Chehab diff --git a/drivers/media/video/em28xx/em28xx-dvb.c b/drivers/media/video/em28xx/em28xx-dvb.c index cf0ac7f..d603575 100644 --- a/drivers/media/video/em28xx/em28xx-dvb.c +++ b/drivers/media/video/em28xx/em28xx-dvb.c @@ -478,7 +478,6 @@ static int dvb_init(struct em28xx *dev) } break; case EM2880_BOARD_KWORLD_DVB_310U: - case EM2880_BOARD_EMPIRE_DUAL_TV: dvb->frontend = dvb_attach(zl10353_attach, &em28xx_zl10353_with_xc3028, &dev->i2c_adap); @@ -488,6 +487,7 @@ static int dvb_init(struct em28xx *dev) } break; case EM2880_BOARD_HAUPPAUGE_WINTV_HVR_900: + case EM2880_BOARD_EMPIRE_DUAL_TV: dvb->frontend = dvb_attach(zl10353_attach, &em28xx_zl10353_xc3028_no_i2c_gate, &dev->i2c_adap); -- cgit v0.10.2 From 77f2c2db1146154fb054e9ce955928a66d8c959f Mon Sep 17 00:00:00 2001 From: Roel Kluin Date: Mon, 10 Aug 2009 22:17:25 -0300 Subject: V4L/DVB (12436): stk-webcam: read buffer overflow It tested the value of stk_sizes[i].m before checking whether i was in range. Cc: Hans Verkuil Cc: Trent Piepho Signed-off-by: Roel Kluin Signed-off-by: Andrew Morton Signed-off-by: Douglas Schilling Landgraf Signed-off-by: Mauro Carvalho Chehab diff --git a/drivers/media/video/stk-webcam.c b/drivers/media/video/stk-webcam.c index 4d6785e..b154bd9 100644 --- a/drivers/media/video/stk-webcam.c +++ b/drivers/media/video/stk-webcam.c @@ -1050,8 +1050,8 @@ static int stk_setup_format(struct stk_camera *dev) depth = 1; else depth = 2; - while (stk_sizes[i].m != dev->vsettings.mode - && i < ARRAY_SIZE(stk_sizes)) + while (i < ARRAY_SIZE(stk_sizes) && + stk_sizes[i].m != dev->vsettings.mode) i++; if (i == ARRAY_SIZE(stk_sizes)) { STK_ERROR("Something is broken in %s\n", __func__); -- cgit v0.10.2 From 27059b35397fc7cf2cbf5b4b99d912bbc06aff4d Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Mon, 10 Aug 2009 21:59:16 -0300 Subject: V4L/DVB (12437): dvb: siano uses/depends on INPUT siano uses input_*() functions so it should depend on INPUT to prevent build errors: ERROR: "input_event" [drivers/media/dvb/siano/sms1xxx.ko] undefined! ERROR: "input_register_device" [drivers/media/dvb/siano/sms1xxx.ko] undefined! ERROR: "input_free_device" [drivers/media/dvb/siano/sms1xxx.ko] undefined! ERROR: "input_unregister_device" [drivers/media/dvb/siano/sms1xxx.ko] undefined! ERROR: "input_allocate_device" [drivers/media/dvb/siano/sms1xxx.ko] undefined! Cc: Michael Krufky Cc: Uri Shkolnik Signed-off-by: Randy Dunlap Signed-off-by: Douglas Schilling Landgraf Signed-off-by: Mauro Carvalho Chehab diff --git a/drivers/media/dvb/siano/Kconfig b/drivers/media/dvb/siano/Kconfig index dd863f2..88847d1 100644 --- a/drivers/media/dvb/siano/Kconfig +++ b/drivers/media/dvb/siano/Kconfig @@ -4,7 +4,7 @@ config DVB_SIANO_SMS1XXX tristate "Siano SMS1XXX USB dongle support" - depends on DVB_CORE && USB + depends on DVB_CORE && USB && INPUT ---help--- Choose Y here if you have a USB dongle with a SMS1XXX chipset. -- cgit v0.10.2 From bb2b4542b6415044894cd7c147ff54840dd8ed3f Mon Sep 17 00:00:00 2001 From: Roel Kluin Date: Mon, 10 Aug 2009 22:07:54 -0300 Subject: V4L/DVB (12438): Read buffer overflow parport[n] is checked before n < MAX_CAMS Signed-off-by: Roel Kluin Signed-off-by: Douglas Schilling Landgraf Signed-off-by: Mauro Carvalho Chehab diff --git a/drivers/media/video/bw-qcam.c b/drivers/media/video/bw-qcam.c index 10dbd4a..9e39bc5 100644 --- a/drivers/media/video/bw-qcam.c +++ b/drivers/media/video/bw-qcam.c @@ -992,7 +992,7 @@ static int accept_bwqcam(struct parport *port) if (parport[0] && strncmp(parport[0], "auto", 4) != 0) { /* user gave parport parameters */ - for(n=0; parport[n] && n Date: Mon, 10 Aug 2009 22:51:01 -0300 Subject: V4L/DVB (12440): Use kzalloc for frontend states to have struct dvb_frontend properly This patch changes most frontend drivers to allocate their state structure via kzalloc and not kmalloc. This is done to properly initialize the embedded "struct dvb_frontend frontend" field, that they all have. The visible effect of this struct being uninitalized is, that the member "id" that is used to set the name of kernel thread is totally random. Some board drivers (for example cx88-dvb) set this "id" via videobuf_dvb_alloc_frontend but most do not. So I at least get random id values for saa7134, flexcop and ttpci based cards. It looks like this in dmesg: DVB: registering adapter 1 frontend -10551321 (ST STV0299 DVB-S) The related kernel thread then also gets a strange name like "kdvb-ad-1-fe--1". Cc: Michael Krufky Cc: Steven Toth Cc: Timothy Lee Cc: Igor M. Liplianin Signed-off-by: Matthias Schwarzott Acked-by: Andreas Oberritter Signed-off-by: Douglas Schilling Landgraf Signed-off-by: Mauro Carvalho Chehab diff --git a/drivers/media/dvb/frontends/cx22700.c b/drivers/media/dvb/frontends/cx22700.c index ace5cb1..fbd838e 100644 --- a/drivers/media/dvb/frontends/cx22700.c +++ b/drivers/media/dvb/frontends/cx22700.c @@ -380,7 +380,7 @@ struct dvb_frontend* cx22700_attach(const struct cx22700_config* config, struct cx22700_state* state = NULL; /* allocate memory for the internal state */ - state = kmalloc(sizeof(struct cx22700_state), GFP_KERNEL); + state = kzalloc(sizeof(struct cx22700_state), GFP_KERNEL); if (state == NULL) goto error; /* setup the state */ diff --git a/drivers/media/dvb/frontends/cx22702.c b/drivers/media/dvb/frontends/cx22702.c index 5d1abe3..00b5c7e 100644 --- a/drivers/media/dvb/frontends/cx22702.c +++ b/drivers/media/dvb/frontends/cx22702.c @@ -580,7 +580,7 @@ struct dvb_frontend *cx22702_attach(const struct cx22702_config *config, struct cx22702_state *state = NULL; /* allocate memory for the internal state */ - state = kmalloc(sizeof(struct cx22702_state), GFP_KERNEL); + state = kzalloc(sizeof(struct cx22702_state), GFP_KERNEL); if (state == NULL) goto error; diff --git a/drivers/media/dvb/frontends/cx24110.c b/drivers/media/dvb/frontends/cx24110.c index 87ae29d..ffbcfab 100644 --- a/drivers/media/dvb/frontends/cx24110.c +++ b/drivers/media/dvb/frontends/cx24110.c @@ -598,7 +598,7 @@ struct dvb_frontend* cx24110_attach(const struct cx24110_config* config, int ret; /* allocate memory for the internal state */ - state = kmalloc(sizeof(struct cx24110_state), GFP_KERNEL); + state = kzalloc(sizeof(struct cx24110_state), GFP_KERNEL); if (state == NULL) goto error; /* setup the state */ diff --git a/drivers/media/dvb/frontends/dvb_dummy_fe.c b/drivers/media/dvb/frontends/dvb_dummy_fe.c index db8a937..a7fc7e5 100644 --- a/drivers/media/dvb/frontends/dvb_dummy_fe.c +++ b/drivers/media/dvb/frontends/dvb_dummy_fe.c @@ -117,7 +117,7 @@ struct dvb_frontend* dvb_dummy_fe_ofdm_attach(void) struct dvb_dummy_fe_state* state = NULL; /* allocate memory for the internal state */ - state = kmalloc(sizeof(struct dvb_dummy_fe_state), GFP_KERNEL); + state = kzalloc(sizeof(struct dvb_dummy_fe_state), GFP_KERNEL); if (state == NULL) goto error; /* create dvb_frontend */ @@ -137,7 +137,7 @@ struct dvb_frontend *dvb_dummy_fe_qpsk_attach(void) struct dvb_dummy_fe_state* state = NULL; /* allocate memory for the internal state */ - state = kmalloc(sizeof(struct dvb_dummy_fe_state), GFP_KERNEL); + state = kzalloc(sizeof(struct dvb_dummy_fe_state), GFP_KERNEL); if (state == NULL) goto error; /* create dvb_frontend */ @@ -157,7 +157,7 @@ struct dvb_frontend *dvb_dummy_fe_qam_attach(void) struct dvb_dummy_fe_state* state = NULL; /* allocate memory for the internal state */ - state = kmalloc(sizeof(struct dvb_dummy_fe_state), GFP_KERNEL); + state = kzalloc(sizeof(struct dvb_dummy_fe_state), GFP_KERNEL); if (state == NULL) goto error; /* create dvb_frontend */ diff --git a/drivers/media/dvb/frontends/l64781.c b/drivers/media/dvb/frontends/l64781.c index e1e70e9..3051b64 100644 --- a/drivers/media/dvb/frontends/l64781.c +++ b/drivers/media/dvb/frontends/l64781.c @@ -501,7 +501,7 @@ struct dvb_frontend* l64781_attach(const struct l64781_config* config, { .addr = config->demod_address, .flags = I2C_M_RD, .buf = b1, .len = 1 } }; /* allocate memory for the internal state */ - state = kmalloc(sizeof(struct l64781_state), GFP_KERNEL); + state = kzalloc(sizeof(struct l64781_state), GFP_KERNEL); if (state == NULL) goto error; /* setup the state */ diff --git a/drivers/media/dvb/frontends/lgs8gl5.c b/drivers/media/dvb/frontends/lgs8gl5.c index 855852f..bb37ed2 100644 --- a/drivers/media/dvb/frontends/lgs8gl5.c +++ b/drivers/media/dvb/frontends/lgs8gl5.c @@ -387,7 +387,7 @@ lgs8gl5_attach(const struct lgs8gl5_config *config, struct i2c_adapter *i2c) dprintk("%s\n", __func__); /* Allocate memory for the internal state */ - state = kmalloc(sizeof(struct lgs8gl5_state), GFP_KERNEL); + state = kzalloc(sizeof(struct lgs8gl5_state), GFP_KERNEL); if (state == NULL) goto error; diff --git a/drivers/media/dvb/frontends/mt312.c b/drivers/media/dvb/frontends/mt312.c index a621f72..f69daaa 100644 --- a/drivers/media/dvb/frontends/mt312.c +++ b/drivers/media/dvb/frontends/mt312.c @@ -782,7 +782,7 @@ struct dvb_frontend *mt312_attach(const struct mt312_config *config, struct mt312_state *state = NULL; /* allocate memory for the internal state */ - state = kmalloc(sizeof(struct mt312_state), GFP_KERNEL); + state = kzalloc(sizeof(struct mt312_state), GFP_KERNEL); if (state == NULL) goto error; diff --git a/drivers/media/dvb/frontends/nxt6000.c b/drivers/media/dvb/frontends/nxt6000.c index 0eef22d..a763ec75 100644 --- a/drivers/media/dvb/frontends/nxt6000.c +++ b/drivers/media/dvb/frontends/nxt6000.c @@ -545,7 +545,7 @@ struct dvb_frontend* nxt6000_attach(const struct nxt6000_config* config, struct nxt6000_state* state = NULL; /* allocate memory for the internal state */ - state = kmalloc(sizeof(struct nxt6000_state), GFP_KERNEL); + state = kzalloc(sizeof(struct nxt6000_state), GFP_KERNEL); if (state == NULL) goto error; /* setup the state */ diff --git a/drivers/media/dvb/frontends/or51132.c b/drivers/media/dvb/frontends/or51132.c index 8133ea3..38e67ac 100644 --- a/drivers/media/dvb/frontends/or51132.c +++ b/drivers/media/dvb/frontends/or51132.c @@ -562,7 +562,7 @@ struct dvb_frontend* or51132_attach(const struct or51132_config* config, struct or51132_state* state = NULL; /* Allocate memory for the internal state */ - state = kmalloc(sizeof(struct or51132_state), GFP_KERNEL); + state = kzalloc(sizeof(struct or51132_state), GFP_KERNEL); if (state == NULL) return NULL; diff --git a/drivers/media/dvb/frontends/or51211.c b/drivers/media/dvb/frontends/or51211.c index 16cf2fd..c709ce6 100644 --- a/drivers/media/dvb/frontends/or51211.c +++ b/drivers/media/dvb/frontends/or51211.c @@ -527,7 +527,7 @@ struct dvb_frontend* or51211_attach(const struct or51211_config* config, struct or51211_state* state = NULL; /* Allocate memory for the internal state */ - state = kmalloc(sizeof(struct or51211_state), GFP_KERNEL); + state = kzalloc(sizeof(struct or51211_state), GFP_KERNEL); if (state == NULL) return NULL; diff --git a/drivers/media/dvb/frontends/s5h1409.c b/drivers/media/dvb/frontends/s5h1409.c index 3e08d98..fb30115 100644 --- a/drivers/media/dvb/frontends/s5h1409.c +++ b/drivers/media/dvb/frontends/s5h1409.c @@ -796,7 +796,7 @@ struct dvb_frontend *s5h1409_attach(const struct s5h1409_config *config, u16 reg; /* allocate memory for the internal state */ - state = kmalloc(sizeof(struct s5h1409_state), GFP_KERNEL); + state = kzalloc(sizeof(struct s5h1409_state), GFP_KERNEL); if (state == NULL) goto error; diff --git a/drivers/media/dvb/frontends/s5h1411.c b/drivers/media/dvb/frontends/s5h1411.c index 66e2dd6..d8adf1e 100644 --- a/drivers/media/dvb/frontends/s5h1411.c +++ b/drivers/media/dvb/frontends/s5h1411.c @@ -844,7 +844,7 @@ struct dvb_frontend *s5h1411_attach(const struct s5h1411_config *config, u16 reg; /* allocate memory for the internal state */ - state = kmalloc(sizeof(struct s5h1411_state), GFP_KERNEL); + state = kzalloc(sizeof(struct s5h1411_state), GFP_KERNEL); if (state == NULL) goto error; diff --git a/drivers/media/dvb/frontends/si21xx.c b/drivers/media/dvb/frontends/si21xx.c index 0bd16af..9552a22 100644 --- a/drivers/media/dvb/frontends/si21xx.c +++ b/drivers/media/dvb/frontends/si21xx.c @@ -928,7 +928,7 @@ struct dvb_frontend *si21xx_attach(const struct si21xx_config *config, dprintk("%s\n", __func__); /* allocate memory for the internal state */ - state = kmalloc(sizeof(struct si21xx_state), GFP_KERNEL); + state = kzalloc(sizeof(struct si21xx_state), GFP_KERNEL); if (state == NULL) goto error; diff --git a/drivers/media/dvb/frontends/sp8870.c b/drivers/media/dvb/frontends/sp8870.c index 1c9a9b4..b85eb60 100644 --- a/drivers/media/dvb/frontends/sp8870.c +++ b/drivers/media/dvb/frontends/sp8870.c @@ -557,7 +557,7 @@ struct dvb_frontend* sp8870_attach(const struct sp8870_config* config, struct sp8870_state* state = NULL; /* allocate memory for the internal state */ - state = kmalloc(sizeof(struct sp8870_state), GFP_KERNEL); + state = kzalloc(sizeof(struct sp8870_state), GFP_KERNEL); if (state == NULL) goto error; /* setup the state */ diff --git a/drivers/media/dvb/frontends/sp887x.c b/drivers/media/dvb/frontends/sp887x.c index 559509a..4a7c3d8 100644 --- a/drivers/media/dvb/frontends/sp887x.c +++ b/drivers/media/dvb/frontends/sp887x.c @@ -557,7 +557,7 @@ struct dvb_frontend* sp887x_attach(const struct sp887x_config* config, struct sp887x_state* state = NULL; /* allocate memory for the internal state */ - state = kmalloc(sizeof(struct sp887x_state), GFP_KERNEL); + state = kzalloc(sizeof(struct sp887x_state), GFP_KERNEL); if (state == NULL) goto error; /* setup the state */ diff --git a/drivers/media/dvb/frontends/stv0288.c b/drivers/media/dvb/frontends/stv0288.c index ff1194d..2930a5d 100644 --- a/drivers/media/dvb/frontends/stv0288.c +++ b/drivers/media/dvb/frontends/stv0288.c @@ -570,7 +570,7 @@ struct dvb_frontend *stv0288_attach(const struct stv0288_config *config, int id; /* allocate memory for the internal state */ - state = kmalloc(sizeof(struct stv0288_state), GFP_KERNEL); + state = kzalloc(sizeof(struct stv0288_state), GFP_KERNEL); if (state == NULL) goto error; diff --git a/drivers/media/dvb/frontends/stv0297.c b/drivers/media/dvb/frontends/stv0297.c index 62caf80..4fd7479 100644 --- a/drivers/media/dvb/frontends/stv0297.c +++ b/drivers/media/dvb/frontends/stv0297.c @@ -663,7 +663,7 @@ struct dvb_frontend *stv0297_attach(const struct stv0297_config *config, struct stv0297_state *state = NULL; /* allocate memory for the internal state */ - state = kmalloc(sizeof(struct stv0297_state), GFP_KERNEL); + state = kzalloc(sizeof(struct stv0297_state), GFP_KERNEL); if (state == NULL) goto error; diff --git a/drivers/media/dvb/frontends/stv0299.c b/drivers/media/dvb/frontends/stv0299.c index 6c1cb19..9688744 100644 --- a/drivers/media/dvb/frontends/stv0299.c +++ b/drivers/media/dvb/frontends/stv0299.c @@ -667,7 +667,7 @@ struct dvb_frontend* stv0299_attach(const struct stv0299_config* config, int id; /* allocate memory for the internal state */ - state = kmalloc(sizeof(struct stv0299_state), GFP_KERNEL); + state = kzalloc(sizeof(struct stv0299_state), GFP_KERNEL); if (state == NULL) goto error; /* setup the state */ diff --git a/drivers/media/dvb/frontends/tda10021.c b/drivers/media/dvb/frontends/tda10021.c index f648fdb..f5d7b32 100644 --- a/drivers/media/dvb/frontends/tda10021.c +++ b/drivers/media/dvb/frontends/tda10021.c @@ -413,7 +413,7 @@ struct dvb_frontend* tda10021_attach(const struct tda1002x_config* config, u8 id; /* allocate memory for the internal state */ - state = kmalloc(sizeof(struct tda10021_state), GFP_KERNEL); + state = kzalloc(sizeof(struct tda10021_state), GFP_KERNEL); if (state == NULL) goto error; /* setup the state */ diff --git a/drivers/media/dvb/frontends/tda10048.c b/drivers/media/dvb/frontends/tda10048.c index cc8862c..4e2a7c8 100644 --- a/drivers/media/dvb/frontends/tda10048.c +++ b/drivers/media/dvb/frontends/tda10048.c @@ -1095,7 +1095,7 @@ struct dvb_frontend *tda10048_attach(const struct tda10048_config *config, dprintk(1, "%s()\n", __func__); /* allocate memory for the internal state */ - state = kmalloc(sizeof(struct tda10048_state), GFP_KERNEL); + state = kzalloc(sizeof(struct tda10048_state), GFP_KERNEL); if (state == NULL) goto error; diff --git a/drivers/media/dvb/frontends/tda1004x.c b/drivers/media/dvb/frontends/tda1004x.c index 4981cef..f2a8abe 100644 --- a/drivers/media/dvb/frontends/tda1004x.c +++ b/drivers/media/dvb/frontends/tda1004x.c @@ -1269,7 +1269,7 @@ struct dvb_frontend* tda10045_attach(const struct tda1004x_config* config, int id; /* allocate memory for the internal state */ - state = kmalloc(sizeof(struct tda1004x_state), GFP_KERNEL); + state = kzalloc(sizeof(struct tda1004x_state), GFP_KERNEL); if (!state) { printk(KERN_ERR "Can't alocate memory for tda10045 state\n"); return NULL; @@ -1339,7 +1339,7 @@ struct dvb_frontend* tda10046_attach(const struct tda1004x_config* config, int id; /* allocate memory for the internal state */ - state = kmalloc(sizeof(struct tda1004x_state), GFP_KERNEL); + state = kzalloc(sizeof(struct tda1004x_state), GFP_KERNEL); if (!state) { printk(KERN_ERR "Can't alocate memory for tda10046 state\n"); return NULL; diff --git a/drivers/media/dvb/frontends/tda10086.c b/drivers/media/dvb/frontends/tda10086.c index a17ce3c..f2c8faa 100644 --- a/drivers/media/dvb/frontends/tda10086.c +++ b/drivers/media/dvb/frontends/tda10086.c @@ -745,7 +745,7 @@ struct dvb_frontend* tda10086_attach(const struct tda10086_config* config, dprintk ("%s\n", __func__); /* allocate memory for the internal state */ - state = kmalloc(sizeof(struct tda10086_state), GFP_KERNEL); + state = kzalloc(sizeof(struct tda10086_state), GFP_KERNEL); if (!state) return NULL; diff --git a/drivers/media/dvb/frontends/tda8083.c b/drivers/media/dvb/frontends/tda8083.c index 5b843b2..9369f74 100644 --- a/drivers/media/dvb/frontends/tda8083.c +++ b/drivers/media/dvb/frontends/tda8083.c @@ -417,7 +417,7 @@ struct dvb_frontend* tda8083_attach(const struct tda8083_config* config, struct tda8083_state* state = NULL; /* allocate memory for the internal state */ - state = kmalloc(sizeof(struct tda8083_state), GFP_KERNEL); + state = kzalloc(sizeof(struct tda8083_state), GFP_KERNEL); if (state == NULL) goto error; /* setup the state */ diff --git a/drivers/media/dvb/frontends/ves1820.c b/drivers/media/dvb/frontends/ves1820.c index a184597..6e78e48 100644 --- a/drivers/media/dvb/frontends/ves1820.c +++ b/drivers/media/dvb/frontends/ves1820.c @@ -374,7 +374,7 @@ struct dvb_frontend* ves1820_attach(const struct ves1820_config* config, struct ves1820_state* state = NULL; /* allocate memory for the internal state */ - state = kmalloc(sizeof(struct ves1820_state), GFP_KERNEL); + state = kzalloc(sizeof(struct ves1820_state), GFP_KERNEL); if (state == NULL) goto error; diff --git a/drivers/media/dvb/frontends/ves1x93.c b/drivers/media/dvb/frontends/ves1x93.c index bd55896..8d7854c 100644 --- a/drivers/media/dvb/frontends/ves1x93.c +++ b/drivers/media/dvb/frontends/ves1x93.c @@ -456,7 +456,7 @@ struct dvb_frontend* ves1x93_attach(const struct ves1x93_config* config, u8 identity; /* allocate memory for the internal state */ - state = kmalloc(sizeof(struct ves1x93_state), GFP_KERNEL); + state = kzalloc(sizeof(struct ves1x93_state), GFP_KERNEL); if (state == NULL) goto error; /* setup the state */ -- cgit v0.10.2 From 08b39642b1e375afd014c50f6013ec4a292ca3b2 Mon Sep 17 00:00:00 2001 From: Roel Kluin Date: Mon, 10 Aug 2009 22:59:33 -0300 Subject: V4L/DVB (12441): siano: read buffer overflow With mode DEVICE_MODE_RAW_TUNER a read occurs past the end of smscore_fw_lkup[]. Subsequently an attempt is made to load the firmware from the resulting filename. Signed-off-by: Roel Kluin Signed-off-by: Andrew Morton Signed-off-by: Douglas Schilling Landgraf Signed-off-by: Mauro Carvalho Chehab diff --git a/drivers/media/dvb/siano/smscoreapi.c b/drivers/media/dvb/siano/smscoreapi.c index a246903..bd9ab9d 100644 --- a/drivers/media/dvb/siano/smscoreapi.c +++ b/drivers/media/dvb/siano/smscoreapi.c @@ -816,7 +816,7 @@ int smscore_set_device_mode(struct smscore_device_t *coredev, int mode) sms_debug("set device mode to %d", mode); if (coredev->device_flags & SMS_DEVICE_FAMILY2) { - if (mode < DEVICE_MODE_DVBT || mode > DEVICE_MODE_RAW_TUNER) { + if (mode < DEVICE_MODE_DVBT || mode >= DEVICE_MODE_RAW_TUNER) { sms_err("invalid mode specified %d", mode); return -EINVAL; } -- cgit v0.10.2 From a219dc4d4463809b1be473038e7d9f3437ca452d Mon Sep 17 00:00:00 2001 From: Ramax Lo Date: Wed, 12 Aug 2009 23:55:56 +0800 Subject: ARM: S3C64XX: serial: Fix a typo in Kconfig The typo causes drivers/serial/s3c6400.c not being built for s3c6400 platform. Signed-off-by: Ramax Lo Signed-off-by: Ben Dooks diff --git a/drivers/serial/Kconfig b/drivers/serial/Kconfig index 037c1e0..6553833 100644 --- a/drivers/serial/Kconfig +++ b/drivers/serial/Kconfig @@ -527,7 +527,7 @@ config SERIAL_S3C24A0 config SERIAL_S3C6400 tristate "Samsung S3C6400/S3C6410 Serial port support" - depends on SERIAL_SAMSUNG && (CPU_S3C600 || CPU_S3C6410) + depends on SERIAL_SAMSUNG && (CPU_S3C6400 || CPU_S3C6410) default y help Serial port support for the Samsung S3C6400 and S3C6410 -- cgit v0.10.2 From 48ec45e725aa385d72bced73b267dfaf13351876 Mon Sep 17 00:00:00 2001 From: Davide Rizzo Date: Thu, 13 Aug 2009 11:53:53 +0200 Subject: ARM: S3C24XX: Fix clkout mpx error Bug correction: CLK Outputs cannot have XTAL as parent Signed-off-by: Davide Rizzo [ben-linux@fluff.org: updated patch subject] Signed-off-by: Ben Dooks diff --git a/arch/arm/plat-s3c24xx/clock-dclk.c b/arch/arm/plat-s3c24xx/clock-dclk.c index 5b75a79..0afb217 100644 --- a/arch/arm/plat-s3c24xx/clock-dclk.c +++ b/arch/arm/plat-s3c24xx/clock-dclk.c @@ -129,7 +129,7 @@ static int s3c24xx_clkout_setparent(struct clk *clk, struct clk *parent) /* calculate the MISCCR setting for the clock */ - if (parent == &clk_xtal) + if (parent == &clk_mpll) source = S3C2410_MISCCR_CLK0_MPLL; else if (parent == &clk_upll) source = S3C2410_MISCCR_CLK0_UPLL; -- cgit v0.10.2 From 17e78b0655da20f2fc2bbde3b8252dac07c82914 Mon Sep 17 00:00:00 2001 From: Yi Zou Date: Thu, 13 Aug 2009 14:09:58 +0000 Subject: ixgbe: Do not return 0 in ixgbe_fcoe_ddp() upon FCP_RSP in DDP completion We return the ddp->len in ixgbe_fcoe_ddp() to indicate the length of data that have been DDPed. However, it is possible that the length is 0, e.g., for SCSI READ, the FCP_RSP may come back w/ SCSI status 0x28 as Task Set Full with no FCP data for DDP. In ixgbe_fcoe_ddp(), we return 0 to indicate not passing DDPed packets to upper layer. Therefore in the case of ddp->len being 0 upon FCP_RSP, we do not want to return the 0 ddp->len as we want FCP_RSP to be always delivered to the upper layer. This patch fixes this bug by setting rc only if ddp->len is non-zero. Signed-off-by: Yi Zou Acked-by: Peter P Waskiewicz Jr Signed-off-by: Jeff Kirsher Signed-off-by: David S. Miller diff --git a/drivers/net/ixgbe/ixgbe_fcoe.c b/drivers/net/ixgbe/ixgbe_fcoe.c index fa9f24e..28cf104 100644 --- a/drivers/net/ixgbe/ixgbe_fcoe.c +++ b/drivers/net/ixgbe/ixgbe_fcoe.c @@ -336,7 +336,7 @@ int ixgbe_fcoe_ddp(struct ixgbe_adapter *adapter, /* return 0 to bypass going to ULD for DDPed data */ if (fcstat == IXGBE_RXDADV_STAT_FCSTAT_DDP) rc = 0; - else + else if (ddp->len) rc = ddp->len; } -- cgit v0.10.2 From 8a62babfb87aa5911e87e0ce38381bdfdc4a2b83 Mon Sep 17 00:00:00 2001 From: Lucy Liu Date: Thu, 13 Aug 2009 14:09:38 +0000 Subject: ixgbe: Fix receive on real device when VLANs are configured Traffic received with a priority tag (VID = 0) and non-zero priority value was incorrectly handled by the VLAN packet code path due to a check on zero for the whole VLAN tag instead of just the VID. This patch masked out the priority field when checking the vlan tag for received VLAN packets. Signed-off-by: Lucy Liu Acked-by: Peter P Waskiewicz Jr Signed-off-by: Jeff Kirsher Signed-off-by: David S. Miller diff --git a/drivers/net/ixgbe/ixgbe_main.c b/drivers/net/ixgbe/ixgbe_main.c index e3cb949..77b0381 100644 --- a/drivers/net/ixgbe/ixgbe_main.c +++ b/drivers/net/ixgbe/ixgbe_main.c @@ -492,12 +492,12 @@ static void ixgbe_receive_skb(struct ixgbe_q_vector *q_vector, skb_record_rx_queue(skb, ring->queue_index); if (!(adapter->flags & IXGBE_FLAG_IN_NETPOLL)) { - if (adapter->vlgrp && is_vlan && (tag != 0)) + if (adapter->vlgrp && is_vlan && (tag & VLAN_VID_MASK)) vlan_gro_receive(napi, adapter->vlgrp, tag, skb); else napi_gro_receive(napi, skb); } else { - if (adapter->vlgrp && is_vlan && (tag != 0)) + if (adapter->vlgrp && is_vlan && (tag & VLAN_VID_MASK)) vlan_hwaccel_rx(skb, adapter->vlgrp, tag); else netif_rx(skb); -- cgit v0.10.2 From d6647bdf98a0de19963de8d5d9698d469ed72097 Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Tue, 21 Jul 2009 17:11:50 +0900 Subject: init: set nr_cpu_ids before setup_per_cpu_areas() nr_cpu_ids is dependent only on cpu_possible_map and setup_per_cpu_areas() already depends on cpu_possible_map and will use nr_cpu_ids. Initialize nr_cpu_ids before setting up percpu areas. Signed-off-by: Tejun Heo diff --git a/init/main.c b/init/main.c index 2c5ade7..2d9d6bd 100644 --- a/init/main.c +++ b/init/main.c @@ -584,8 +584,8 @@ asmlinkage void __init start_kernel(void) setup_arch(&command_line); mm_init_owner(&init_mm, &init_task); setup_command_line(command_line); - setup_per_cpu_areas(); setup_nr_cpu_ids(); + setup_per_cpu_areas(); smp_prepare_boot_cpu(); /* arch-specific boot-cpu hooks */ build_all_zonelists(); -- cgit v0.10.2 From 74d46d6b2d23d44d72c37df4c6a5d2e782f7b088 Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Tue, 21 Jul 2009 17:11:50 +0900 Subject: percpu, sparc64: fix sparse possible cpu map handling percpu code has been assuming num_possible_cpus() == nr_cpu_ids which is incorrect if cpu_possible_map contains holes. This causes percpu code to access beyond allocated memories and vmalloc areas. On a sparc64 machine with cpus 0 and 2 (u60), this triggers the following warning or fails boot. WARNING: at /devel/tj/os/work/mm/vmalloc.c:106 vmap_page_range_noflush+0x1f0/0x240() Modules linked in: Call Trace: [00000000004b17d0] vmap_page_range_noflush+0x1f0/0x240 [00000000004b1840] map_vm_area+0x20/0x60 [00000000004b1950] __vmalloc_area_node+0xd0/0x160 [0000000000593434] deflate_init+0x14/0xe0 [0000000000583b94] __crypto_alloc_tfm+0xd4/0x1e0 [00000000005844f0] crypto_alloc_base+0x50/0xa0 [000000000058b898] alg_test_comp+0x18/0x80 [000000000058dad4] alg_test+0x54/0x180 [000000000058af00] cryptomgr_test+0x40/0x60 [0000000000473098] kthread+0x58/0x80 [000000000042b590] kernel_thread+0x30/0x60 [0000000000472fd0] kthreadd+0xf0/0x160 ---[ end trace 429b268a213317ba ]--- This patch fixes generic percpu functions and sparc64 setup_per_cpu_areas() so that they handle sparse cpu_possible_map properly. Please note that on x86, cpu_possible_map() doesn't contain holes and thus num_possible_cpus() == nr_cpu_ids and this patch doesn't cause any behavior difference. Signed-off-by: Tejun Heo Acked-by: David S. Miller Cc: Ingo Molnar diff --git a/arch/sparc/kernel/smp_64.c b/arch/sparc/kernel/smp_64.c index fa44eaf..3691907 100644 --- a/arch/sparc/kernel/smp_64.c +++ b/arch/sparc/kernel/smp_64.c @@ -1499,7 +1499,7 @@ void __init setup_per_cpu_areas(void) dyn_size = pcpur_size - static_size - PERCPU_MODULE_RESERVE; - ptrs_size = PFN_ALIGN(num_possible_cpus() * sizeof(pcpur_ptrs[0])); + ptrs_size = PFN_ALIGN(nr_cpu_ids * sizeof(pcpur_ptrs[0])); pcpur_ptrs = alloc_bootmem(ptrs_size); for_each_possible_cpu(cpu) { @@ -1514,7 +1514,7 @@ void __init setup_per_cpu_areas(void) /* allocate address and map */ vm.flags = VM_ALLOC; - vm.size = num_possible_cpus() * PCPU_CHUNK_SIZE; + vm.size = nr_cpu_ids * PCPU_CHUNK_SIZE; vm_area_register_early(&vm, PCPU_CHUNK_SIZE); for_each_possible_cpu(cpu) { diff --git a/arch/x86/kernel/setup_percpu.c b/arch/x86/kernel/setup_percpu.c index 29a3eef..07d8191 100644 --- a/arch/x86/kernel/setup_percpu.c +++ b/arch/x86/kernel/setup_percpu.c @@ -165,7 +165,7 @@ static ssize_t __init setup_pcpu_lpage(size_t static_size, bool chosen) if (!chosen) { size_t vm_size = VMALLOC_END - VMALLOC_START; - size_t tot_size = num_possible_cpus() * PMD_SIZE; + size_t tot_size = nr_cpu_ids * PMD_SIZE; /* on non-NUMA, embedding is better */ if (!pcpu_need_numa()) @@ -199,7 +199,7 @@ static ssize_t __init setup_pcpu_lpage(size_t static_size, bool chosen) dyn_size = pcpul_size - static_size - PERCPU_FIRST_CHUNK_RESERVE; /* allocate pointer array and alloc large pages */ - map_size = PFN_ALIGN(num_possible_cpus() * sizeof(pcpul_map[0])); + map_size = PFN_ALIGN(nr_cpu_ids * sizeof(pcpul_map[0])); pcpul_map = alloc_bootmem(map_size); for_each_possible_cpu(cpu) { @@ -228,7 +228,7 @@ static ssize_t __init setup_pcpu_lpage(size_t static_size, bool chosen) /* allocate address and map */ pcpul_vm.flags = VM_ALLOC; - pcpul_vm.size = num_possible_cpus() * PMD_SIZE; + pcpul_vm.size = nr_cpu_ids * PMD_SIZE; vm_area_register_early(&pcpul_vm, PMD_SIZE); for_each_possible_cpu(cpu) { @@ -250,8 +250,8 @@ static ssize_t __init setup_pcpu_lpage(size_t static_size, bool chosen) PMD_SIZE, pcpul_vm.addr, NULL); /* sort pcpul_map array for pcpu_lpage_remapped() */ - for (i = 0; i < num_possible_cpus() - 1; i++) - for (j = i + 1; j < num_possible_cpus(); j++) + for (i = 0; i < nr_cpu_ids - 1; i++) + for (j = i + 1; j < nr_cpu_ids; j++) if (pcpul_map[i].ptr > pcpul_map[j].ptr) { struct pcpul_ent tmp = pcpul_map[i]; pcpul_map[i] = pcpul_map[j]; @@ -288,7 +288,7 @@ void *pcpu_lpage_remapped(void *kaddr) { void *pmd_addr = (void *)((unsigned long)kaddr & PMD_MASK); unsigned long offset = (unsigned long)kaddr & ~PMD_MASK; - int left = 0, right = num_possible_cpus() - 1; + int left = 0, right = nr_cpu_ids - 1; int pos; /* pcpul in use at all? */ @@ -377,7 +377,7 @@ static ssize_t __init setup_pcpu_4k(size_t static_size) pcpu4k_nr_static_pages = PFN_UP(static_size); /* unaligned allocations can't be freed, round up to page size */ - pages_size = PFN_ALIGN(pcpu4k_nr_static_pages * num_possible_cpus() + pages_size = PFN_ALIGN(pcpu4k_nr_static_pages * nr_cpu_ids * sizeof(pcpu4k_pages[0])); pcpu4k_pages = alloc_bootmem(pages_size); diff --git a/mm/percpu.c b/mm/percpu.c index b70f2ac..e0be114 100644 --- a/mm/percpu.c +++ b/mm/percpu.c @@ -8,12 +8,12 @@ * * This is percpu allocator which can handle both static and dynamic * areas. Percpu areas are allocated in chunks in vmalloc area. Each - * chunk is consisted of num_possible_cpus() units and the first chunk - * is used for static percpu variables in the kernel image (special - * boot time alloc/init handling necessary as these areas need to be - * brought up before allocation services are running). Unit grows as - * necessary and all units grow or shrink in unison. When a chunk is - * filled up, another chunk is allocated. ie. in vmalloc area + * chunk is consisted of nr_cpu_ids units and the first chunk is used + * for static percpu variables in the kernel image (special boot time + * alloc/init handling necessary as these areas need to be brought up + * before allocation services are running). Unit grows as necessary + * and all units grow or shrink in unison. When a chunk is filled up, + * another chunk is allocated. ie. in vmalloc area * * c0 c1 c2 * ------------------- ------------------- ------------ @@ -558,7 +558,7 @@ static void pcpu_free_area(struct pcpu_chunk *chunk, int freeme) static void pcpu_unmap(struct pcpu_chunk *chunk, int page_start, int page_end, bool flush_tlb) { - unsigned int last = num_possible_cpus() - 1; + unsigned int last = nr_cpu_ids - 1; unsigned int cpu; /* unmap must not be done on immutable chunk */ @@ -643,7 +643,7 @@ static void pcpu_depopulate_chunk(struct pcpu_chunk *chunk, int off, int size, */ static int pcpu_map(struct pcpu_chunk *chunk, int page_start, int page_end) { - unsigned int last = num_possible_cpus() - 1; + unsigned int last = nr_cpu_ids - 1; unsigned int cpu; int err; @@ -1067,9 +1067,9 @@ size_t __init pcpu_setup_first_chunk(pcpu_get_page_fn_t get_page_fn, PFN_UP(size_sum)); pcpu_unit_size = pcpu_unit_pages << PAGE_SHIFT; - pcpu_chunk_size = num_possible_cpus() * pcpu_unit_size; + pcpu_chunk_size = nr_cpu_ids * pcpu_unit_size; pcpu_chunk_struct_size = sizeof(struct pcpu_chunk) - + num_possible_cpus() * pcpu_unit_pages * sizeof(struct page *); + + nr_cpu_ids * pcpu_unit_pages * sizeof(struct page *); if (dyn_size < 0) dyn_size = pcpu_unit_size - static_size - reserved_size; @@ -1248,7 +1248,7 @@ ssize_t __init pcpu_embed_first_chunk(size_t static_size, size_t reserved_size, } else pcpue_unit_size = max_t(size_t, pcpue_size, PCPU_MIN_UNIT_SIZE); - chunk_size = pcpue_unit_size * num_possible_cpus(); + chunk_size = pcpue_unit_size * nr_cpu_ids; pcpue_ptr = __alloc_bootmem_nopanic(chunk_size, PAGE_SIZE, __pa(MAX_DMA_ADDRESS)); @@ -1259,12 +1259,15 @@ ssize_t __init pcpu_embed_first_chunk(size_t static_size, size_t reserved_size, } /* return the leftover and copy */ - for_each_possible_cpu(cpu) { + for (cpu = 0; cpu < nr_cpu_ids; cpu++) { void *ptr = pcpue_ptr + cpu * pcpue_unit_size; - free_bootmem(__pa(ptr + pcpue_size), - pcpue_unit_size - pcpue_size); - memcpy(ptr, __per_cpu_load, static_size); + if (cpu_possible(cpu)) { + free_bootmem(__pa(ptr + pcpue_size), + pcpue_unit_size - pcpue_size); + memcpy(ptr, __per_cpu_load, static_size); + } else + free_bootmem(__pa(ptr), pcpue_unit_size); } /* we're ready, commit */ -- cgit v0.10.2 From 142d44b0dd6741a64a7bdbe029110e7c1dcf1d23 Mon Sep 17 00:00:00 2001 From: Amerigo Wang Date: Thu, 13 Aug 2009 02:00:13 -0400 Subject: percpu: use the right flag for get_vm_area() get_vm_area() only accepts VM_* flags, not GFP_*. And according to the doc of get_vm_area(), here should be VM_ALLOC. Signed-off-by: WANG Cong Acked-by: Tejun Heo Cc: Ingo Molnar diff --git a/mm/percpu.c b/mm/percpu.c index e0be114..5fe3784 100644 --- a/mm/percpu.c +++ b/mm/percpu.c @@ -749,7 +749,7 @@ static struct pcpu_chunk *alloc_pcpu_chunk(void) chunk->map[chunk->map_used++] = pcpu_unit_size; chunk->page = chunk->page_ar; - chunk->vm = get_vm_area(pcpu_chunk_size, GFP_KERNEL); + chunk->vm = get_vm_area(pcpu_chunk_size, VM_ALLOC); if (!chunk->vm) { free_pcpu_chunk(chunk); return NULL; -- cgit v0.10.2 From 563abb4be1a79e7b64784d43beb9d0cacb1bad6f Mon Sep 17 00:00:00 2001 From: Valentin Longchamp Date: Tue, 11 Aug 2009 17:29:21 +0200 Subject: mx31moboard: invert sdhc ro signal sense Small confusion with our hardware engineer, the WP signal (RO) is active low on our boards, the signal has to inverted. This is a pretty straightforward patch, it could even go to -rc, but if not, then push it for 2.6.32. Signed-off-by: Valentin Longchamp Signed-off-by: Sascha Hauer diff --git a/arch/arm/mach-mx3/mx31moboard-devboard.c b/arch/arm/mach-mx3/mx31moboard-devboard.c index 4704405..b48581e 100644 --- a/arch/arm/mach-mx3/mx31moboard-devboard.c +++ b/arch/arm/mach-mx3/mx31moboard-devboard.c @@ -63,7 +63,7 @@ static struct imxuart_platform_data uart_pdata = { static int devboard_sdhc2_get_ro(struct device *dev) { - return gpio_get_value(SDHC2_WP); + return !gpio_get_value(SDHC2_WP); } static int devboard_sdhc2_init(struct device *dev, irq_handler_t detect_irq, diff --git a/arch/arm/mach-mx3/mx31moboard-marxbot.c b/arch/arm/mach-mx3/mx31moboard-marxbot.c index 641c3d6..901fb01 100644 --- a/arch/arm/mach-mx3/mx31moboard-marxbot.c +++ b/arch/arm/mach-mx3/mx31moboard-marxbot.c @@ -67,7 +67,7 @@ static unsigned int marxbot_pins[] = { static int marxbot_sdhc2_get_ro(struct device *dev) { - return gpio_get_value(SDHC2_WP); + return !gpio_get_value(SDHC2_WP); } static int marxbot_sdhc2_init(struct device *dev, irq_handler_t detect_irq, diff --git a/arch/arm/mach-mx3/mx31moboard.c b/arch/arm/mach-mx3/mx31moboard.c index a17f2e4..2a2da47 100644 --- a/arch/arm/mach-mx3/mx31moboard.c +++ b/arch/arm/mach-mx3/mx31moboard.c @@ -94,7 +94,7 @@ static struct imxi2c_platform_data moboard_i2c1_pdata = { static int moboard_sdhc1_get_ro(struct device *dev) { - return gpio_get_value(SDHC1_WP); + return !gpio_get_value(SDHC1_WP); } static int moboard_sdhc1_init(struct device *dev, irq_handler_t detect_irq, -- cgit v0.10.2 From d7e623da1a757fbd8c117fa29190ca8bef14dab3 Mon Sep 17 00:00:00 2001 From: Steven Whitehouse Date: Tue, 11 Aug 2009 11:20:11 +0100 Subject: GFS2: Fix permissions on "recover" file Although this file is only ever written and not read by userspace, it seems that the utils are opening this file O_RDWR, so we need to allow that. Also fixes the whitespace which seemed to be broken. Signed-off-by: Steven Whitehouse Cc: David Teigland diff --git a/fs/gfs2/sys.c b/fs/gfs2/sys.c index 23419dc..a7cbfbd 100644 --- a/fs/gfs2/sys.c +++ b/fs/gfs2/sys.c @@ -386,16 +386,16 @@ static ssize_t jid_show(struct gfs2_sbd *sdp, char *buf) #define GDLM_ATTR(_name,_mode,_show,_store) \ static struct gfs2_attr gdlm_attr_##_name = __ATTR(_name,_mode,_show,_store) -GDLM_ATTR(proto_name, 0444, proto_name_show, NULL); -GDLM_ATTR(block, 0644, block_show, block_store); -GDLM_ATTR(withdraw, 0644, withdraw_show, withdraw_store); -GDLM_ATTR(id, 0444, lkid_show, NULL); -GDLM_ATTR(jid, 0444, jid_show, NULL); -GDLM_ATTR(first, 0444, lkfirst_show, NULL); -GDLM_ATTR(first_done, 0444, first_done_show, NULL); -GDLM_ATTR(recover, 0200, NULL, recover_store); -GDLM_ATTR(recover_done, 0444, recover_done_show, NULL); -GDLM_ATTR(recover_status, 0444, recover_status_show, NULL); +GDLM_ATTR(proto_name, 0444, proto_name_show, NULL); +GDLM_ATTR(block, 0644, block_show, block_store); +GDLM_ATTR(withdraw, 0644, withdraw_show, withdraw_store); +GDLM_ATTR(id, 0444, lkid_show, NULL); +GDLM_ATTR(jid, 0444, jid_show, NULL); +GDLM_ATTR(first, 0444, lkfirst_show, NULL); +GDLM_ATTR(first_done, 0444, first_done_show, NULL); +GDLM_ATTR(recover, 0600, NULL, recover_store); +GDLM_ATTR(recover_done, 0444, recover_done_show, NULL); +GDLM_ATTR(recover_status, 0444, recover_status_show, NULL); static struct attribute *lock_module_attrs[] = { &gdlm_attr_proto_name.attr, -- cgit v0.10.2 From 6b26dead3ce97d016b57724b01974d5ca5c84bd5 Mon Sep 17 00:00:00 2001 From: Pavel Roskin Date: Tue, 4 Aug 2009 17:48:16 -0400 Subject: rt2x00: fix memory corruption in rf cache, add a sanity check Change rt2x00_rf_read() and rt2x00_rf_write() to subtract 1 from the rf register number. This is needed because the rf registers are enumerated starting with one. The size of the rf register cache is just enough to hold all registers, so writing to the highest register was corrupting memory. Add a check to make sure that the rf register number is valid. Signed-off-by: Pavel Roskin Cc: stable@kernel.org Acked-by: Ivo van Doorn Signed-off-by: John W. Linville diff --git a/drivers/net/wireless/rt2x00/rt2x00.h b/drivers/net/wireless/rt2x00/rt2x00.h index a498dde..49c9e2c 100644 --- a/drivers/net/wireless/rt2x00/rt2x00.h +++ b/drivers/net/wireless/rt2x00/rt2x00.h @@ -849,13 +849,15 @@ struct rt2x00_dev { static inline void rt2x00_rf_read(struct rt2x00_dev *rt2x00dev, const unsigned int word, u32 *data) { - *data = rt2x00dev->rf[word]; + BUG_ON(word < 1 || word > rt2x00dev->ops->rf_size / sizeof(u32)); + *data = rt2x00dev->rf[word - 1]; } static inline void rt2x00_rf_write(struct rt2x00_dev *rt2x00dev, const unsigned int word, u32 data) { - rt2x00dev->rf[word] = data; + BUG_ON(word < 1 || word > rt2x00dev->ops->rf_size / sizeof(u32)); + rt2x00dev->rf[word - 1] = data; } /* -- cgit v0.10.2 From 388ce4beb7135722c584b0af18f215e3ec657adf Mon Sep 17 00:00:00 2001 From: "Kashyap, Desai" Date: Fri, 14 Aug 2009 15:01:35 +0530 Subject: [SCSI] mpt2sas: fix config request and diag reset deadlock Moving the setting and clearing of the mutex's to _config_request. There was a mutex deadlock when diag reset is called from inside _config_request, so diag reset was moved to outside the mutexs. Signed-off-by: James Bottomley diff --git a/drivers/scsi/mpt2sas/mpt2sas_config.c b/drivers/scsi/mpt2sas/mpt2sas_config.c index 1c6658c..6ddee16 100644 --- a/drivers/scsi/mpt2sas/mpt2sas_config.c +++ b/drivers/scsi/mpt2sas/mpt2sas_config.c @@ -236,12 +236,14 @@ _config_request(struct MPT2SAS_ADAPTER *ioc, Mpi2ConfigRequest_t Mpi2ConfigRequest_t *config_request; int r; u8 retry_count; - u8 issue_reset; + u8 issue_host_reset = 0; u16 wait_state_count; + mutex_lock(&ioc->config_cmds.mutex); if (ioc->config_cmds.status != MPT2_CMD_NOT_USED) { printk(MPT2SAS_ERR_FMT "%s: config_cmd in use\n", ioc->name, __func__); + mutex_unlock(&ioc->config_cmds.mutex); return -EAGAIN; } retry_count = 0; @@ -260,8 +262,8 @@ _config_request(struct MPT2SAS_ADAPTER *ioc, Mpi2ConfigRequest_t printk(MPT2SAS_ERR_FMT "%s: failed due to ioc not operational\n", ioc->name, __func__); - ioc->config_cmds.status = MPT2_CMD_NOT_USED; - return -EFAULT; + r = -EFAULT; + goto out; } ssleep(1); ioc_state = mpt2sas_base_get_iocstate(ioc, 1); @@ -277,8 +279,8 @@ _config_request(struct MPT2SAS_ADAPTER *ioc, Mpi2ConfigRequest_t if (!smid) { printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n", ioc->name, __func__); - ioc->config_cmds.status = MPT2_CMD_NOT_USED; - return -EAGAIN; + r = -EAGAIN; + goto out; } r = 0; @@ -298,9 +300,15 @@ _config_request(struct MPT2SAS_ADAPTER *ioc, Mpi2ConfigRequest_t ioc->name, __func__); _debug_dump_mf(mpi_request, sizeof(Mpi2ConfigRequest_t)/4); - if (!(ioc->config_cmds.status & MPT2_CMD_RESET)) - issue_reset = 1; - goto issue_host_reset; + retry_count++; + if (ioc->config_cmds.smid == smid) + mpt2sas_base_free_smid(ioc, smid); + if ((ioc->shost_recovery) || + (ioc->config_cmds.status & MPT2_CMD_RESET)) + goto retry_config; + issue_host_reset = 1; + r = -EFAULT; + goto out; } if (ioc->config_cmds.status & MPT2_CMD_REPLY_VALID) memcpy(mpi_reply, ioc->config_cmds.reply, @@ -308,21 +316,13 @@ _config_request(struct MPT2SAS_ADAPTER *ioc, Mpi2ConfigRequest_t if (retry_count) printk(MPT2SAS_INFO_FMT "%s: retry completed!!\n", ioc->name, __func__); +out: ioc->config_cmds.status = MPT2_CMD_NOT_USED; - return r; - - issue_host_reset: - if (issue_reset) + mutex_unlock(&ioc->config_cmds.mutex); + if (issue_host_reset) mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP, FORCE_BIG_HAMMER); - ioc->config_cmds.status = MPT2_CMD_NOT_USED; - if (!retry_count) { - printk(MPT2SAS_INFO_FMT "%s: attempting retry\n", - ioc->name, __func__); - retry_count++; - goto retry_config; - } - return -EFAULT; + return r; } /** @@ -381,7 +381,6 @@ mpt2sas_config_get_manufacturing_pg0(struct MPT2SAS_ADAPTER *ioc, int r; struct config_request mem; - mutex_lock(&ioc->config_cmds.mutex); memset(config_page, 0, sizeof(Mpi2ManufacturingPage0_t)); memset(&mpi_request, 0, sizeof(Mpi2ConfigRequest_t)); mpi_request.Function = MPI2_FUNCTION_CONFIG; @@ -423,7 +422,6 @@ mpt2sas_config_get_manufacturing_pg0(struct MPT2SAS_ADAPTER *ioc, _config_free_config_dma_memory(ioc, &mem); out: - mutex_unlock(&ioc->config_cmds.mutex); return r; } @@ -444,7 +442,6 @@ mpt2sas_config_get_bios_pg2(struct MPT2SAS_ADAPTER *ioc, int r; struct config_request mem; - mutex_lock(&ioc->config_cmds.mutex); memset(config_page, 0, sizeof(Mpi2BiosPage2_t)); memset(&mpi_request, 0, sizeof(Mpi2ConfigRequest_t)); mpi_request.Function = MPI2_FUNCTION_CONFIG; @@ -486,7 +483,6 @@ mpt2sas_config_get_bios_pg2(struct MPT2SAS_ADAPTER *ioc, _config_free_config_dma_memory(ioc, &mem); out: - mutex_unlock(&ioc->config_cmds.mutex); return r; } @@ -507,7 +503,6 @@ mpt2sas_config_get_bios_pg3(struct MPT2SAS_ADAPTER *ioc, Mpi2ConfigReply_t int r; struct config_request mem; - mutex_lock(&ioc->config_cmds.mutex); memset(config_page, 0, sizeof(Mpi2BiosPage3_t)); memset(&mpi_request, 0, sizeof(Mpi2ConfigRequest_t)); mpi_request.Function = MPI2_FUNCTION_CONFIG; @@ -549,7 +544,6 @@ mpt2sas_config_get_bios_pg3(struct MPT2SAS_ADAPTER *ioc, Mpi2ConfigReply_t _config_free_config_dma_memory(ioc, &mem); out: - mutex_unlock(&ioc->config_cmds.mutex); return r; } @@ -570,7 +564,6 @@ mpt2sas_config_get_iounit_pg0(struct MPT2SAS_ADAPTER *ioc, int r; struct config_request mem; - mutex_lock(&ioc->config_cmds.mutex); memset(config_page, 0, sizeof(Mpi2IOUnitPage0_t)); memset(&mpi_request, 0, sizeof(Mpi2ConfigRequest_t)); mpi_request.Function = MPI2_FUNCTION_CONFIG; @@ -612,7 +605,6 @@ mpt2sas_config_get_iounit_pg0(struct MPT2SAS_ADAPTER *ioc, _config_free_config_dma_memory(ioc, &mem); out: - mutex_unlock(&ioc->config_cmds.mutex); return r; } @@ -633,7 +625,6 @@ mpt2sas_config_get_iounit_pg1(struct MPT2SAS_ADAPTER *ioc, int r; struct config_request mem; - mutex_lock(&ioc->config_cmds.mutex); memset(config_page, 0, sizeof(Mpi2IOUnitPage1_t)); memset(&mpi_request, 0, sizeof(Mpi2ConfigRequest_t)); mpi_request.Function = MPI2_FUNCTION_CONFIG; @@ -675,7 +666,6 @@ mpt2sas_config_get_iounit_pg1(struct MPT2SAS_ADAPTER *ioc, _config_free_config_dma_memory(ioc, &mem); out: - mutex_unlock(&ioc->config_cmds.mutex); return r; } @@ -696,7 +686,6 @@ mpt2sas_config_set_iounit_pg1(struct MPT2SAS_ADAPTER *ioc, int r; struct config_request mem; - mutex_lock(&ioc->config_cmds.mutex); memset(&mpi_request, 0, sizeof(Mpi2ConfigRequest_t)); mpi_request.Function = MPI2_FUNCTION_CONFIG; mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_HEADER; @@ -738,7 +727,6 @@ mpt2sas_config_set_iounit_pg1(struct MPT2SAS_ADAPTER *ioc, _config_free_config_dma_memory(ioc, &mem); out: - mutex_unlock(&ioc->config_cmds.mutex); return r; } @@ -759,7 +747,6 @@ mpt2sas_config_get_ioc_pg8(struct MPT2SAS_ADAPTER *ioc, int r; struct config_request mem; - mutex_lock(&ioc->config_cmds.mutex); memset(config_page, 0, sizeof(Mpi2IOCPage8_t)); memset(&mpi_request, 0, sizeof(Mpi2ConfigRequest_t)); mpi_request.Function = MPI2_FUNCTION_CONFIG; @@ -801,7 +788,6 @@ mpt2sas_config_get_ioc_pg8(struct MPT2SAS_ADAPTER *ioc, _config_free_config_dma_memory(ioc, &mem); out: - mutex_unlock(&ioc->config_cmds.mutex); return r; } @@ -824,7 +810,6 @@ mpt2sas_config_get_sas_device_pg0(struct MPT2SAS_ADAPTER *ioc, Mpi2ConfigReply_t int r; struct config_request mem; - mutex_lock(&ioc->config_cmds.mutex); memset(config_page, 0, sizeof(Mpi2SasDevicePage0_t)); memset(&mpi_request, 0, sizeof(Mpi2ConfigRequest_t)); mpi_request.Function = MPI2_FUNCTION_CONFIG; @@ -869,7 +854,6 @@ mpt2sas_config_get_sas_device_pg0(struct MPT2SAS_ADAPTER *ioc, Mpi2ConfigReply_t _config_free_config_dma_memory(ioc, &mem); out: - mutex_unlock(&ioc->config_cmds.mutex); return r; } @@ -892,7 +876,6 @@ mpt2sas_config_get_sas_device_pg1(struct MPT2SAS_ADAPTER *ioc, Mpi2ConfigReply_t int r; struct config_request mem; - mutex_lock(&ioc->config_cmds.mutex); memset(config_page, 0, sizeof(Mpi2SasDevicePage1_t)); memset(&mpi_request, 0, sizeof(Mpi2ConfigRequest_t)); mpi_request.Function = MPI2_FUNCTION_CONFIG; @@ -937,7 +920,6 @@ mpt2sas_config_get_sas_device_pg1(struct MPT2SAS_ADAPTER *ioc, Mpi2ConfigReply_t _config_free_config_dma_memory(ioc, &mem); out: - mutex_unlock(&ioc->config_cmds.mutex); return r; } @@ -959,7 +941,6 @@ mpt2sas_config_get_number_hba_phys(struct MPT2SAS_ADAPTER *ioc, u8 *num_phys) Mpi2ConfigReply_t mpi_reply; Mpi2SasIOUnitPage0_t config_page; - mutex_lock(&ioc->config_cmds.mutex); memset(&mpi_request, 0, sizeof(Mpi2ConfigRequest_t)); mpi_request.Function = MPI2_FUNCTION_CONFIG; mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_HEADER; @@ -1008,7 +989,6 @@ mpt2sas_config_get_number_hba_phys(struct MPT2SAS_ADAPTER *ioc, u8 *num_phys) _config_free_config_dma_memory(ioc, &mem); out: - mutex_unlock(&ioc->config_cmds.mutex); return r; } @@ -1032,8 +1012,6 @@ mpt2sas_config_get_sas_iounit_pg0(struct MPT2SAS_ADAPTER *ioc, Mpi2ConfigReply_t Mpi2ConfigRequest_t mpi_request; int r; struct config_request mem; - - mutex_lock(&ioc->config_cmds.mutex); memset(config_page, 0, sz); memset(&mpi_request, 0, sizeof(Mpi2ConfigRequest_t)); mpi_request.Function = MPI2_FUNCTION_CONFIG; @@ -1076,7 +1054,6 @@ mpt2sas_config_get_sas_iounit_pg0(struct MPT2SAS_ADAPTER *ioc, Mpi2ConfigReply_t _config_free_config_dma_memory(ioc, &mem); out: - mutex_unlock(&ioc->config_cmds.mutex); return r; } @@ -1101,7 +1078,6 @@ mpt2sas_config_get_sas_iounit_pg1(struct MPT2SAS_ADAPTER *ioc, Mpi2ConfigReply_t int r; struct config_request mem; - mutex_lock(&ioc->config_cmds.mutex); memset(config_page, 0, sz); memset(&mpi_request, 0, sizeof(Mpi2ConfigRequest_t)); mpi_request.Function = MPI2_FUNCTION_CONFIG; @@ -1144,7 +1120,6 @@ mpt2sas_config_get_sas_iounit_pg1(struct MPT2SAS_ADAPTER *ioc, Mpi2ConfigReply_t _config_free_config_dma_memory(ioc, &mem); out: - mutex_unlock(&ioc->config_cmds.mutex); return r; } @@ -1167,7 +1142,6 @@ mpt2sas_config_get_expander_pg0(struct MPT2SAS_ADAPTER *ioc, Mpi2ConfigReply_t int r; struct config_request mem; - mutex_lock(&ioc->config_cmds.mutex); memset(config_page, 0, sizeof(Mpi2ExpanderPage0_t)); memset(&mpi_request, 0, sizeof(Mpi2ConfigRequest_t)); mpi_request.Function = MPI2_FUNCTION_CONFIG; @@ -1212,7 +1186,6 @@ mpt2sas_config_get_expander_pg0(struct MPT2SAS_ADAPTER *ioc, Mpi2ConfigReply_t _config_free_config_dma_memory(ioc, &mem); out: - mutex_unlock(&ioc->config_cmds.mutex); return r; } @@ -1236,7 +1209,6 @@ mpt2sas_config_get_expander_pg1(struct MPT2SAS_ADAPTER *ioc, Mpi2ConfigReply_t int r; struct config_request mem; - mutex_lock(&ioc->config_cmds.mutex); memset(config_page, 0, sizeof(Mpi2ExpanderPage1_t)); memset(&mpi_request, 0, sizeof(Mpi2ConfigRequest_t)); mpi_request.Function = MPI2_FUNCTION_CONFIG; @@ -1283,7 +1255,6 @@ mpt2sas_config_get_expander_pg1(struct MPT2SAS_ADAPTER *ioc, Mpi2ConfigReply_t _config_free_config_dma_memory(ioc, &mem); out: - mutex_unlock(&ioc->config_cmds.mutex); return r; } @@ -1306,7 +1277,6 @@ mpt2sas_config_get_enclosure_pg0(struct MPT2SAS_ADAPTER *ioc, Mpi2ConfigReply_t int r; struct config_request mem; - mutex_lock(&ioc->config_cmds.mutex); memset(config_page, 0, sizeof(Mpi2SasEnclosurePage0_t)); memset(&mpi_request, 0, sizeof(Mpi2ConfigRequest_t)); mpi_request.Function = MPI2_FUNCTION_CONFIG; @@ -1351,7 +1321,6 @@ mpt2sas_config_get_enclosure_pg0(struct MPT2SAS_ADAPTER *ioc, Mpi2ConfigReply_t _config_free_config_dma_memory(ioc, &mem); out: - mutex_unlock(&ioc->config_cmds.mutex); return r; } @@ -1373,7 +1342,6 @@ mpt2sas_config_get_phy_pg0(struct MPT2SAS_ADAPTER *ioc, Mpi2ConfigReply_t int r; struct config_request mem; - mutex_lock(&ioc->config_cmds.mutex); memset(config_page, 0, sizeof(Mpi2SasPhyPage0_t)); memset(&mpi_request, 0, sizeof(Mpi2ConfigRequest_t)); mpi_request.Function = MPI2_FUNCTION_CONFIG; @@ -1419,7 +1387,6 @@ mpt2sas_config_get_phy_pg0(struct MPT2SAS_ADAPTER *ioc, Mpi2ConfigReply_t _config_free_config_dma_memory(ioc, &mem); out: - mutex_unlock(&ioc->config_cmds.mutex); return r; } @@ -1441,7 +1408,6 @@ mpt2sas_config_get_phy_pg1(struct MPT2SAS_ADAPTER *ioc, Mpi2ConfigReply_t int r; struct config_request mem; - mutex_lock(&ioc->config_cmds.mutex); memset(config_page, 0, sizeof(Mpi2SasPhyPage1_t)); memset(&mpi_request, 0, sizeof(Mpi2ConfigRequest_t)); mpi_request.Function = MPI2_FUNCTION_CONFIG; @@ -1487,7 +1453,6 @@ mpt2sas_config_get_phy_pg1(struct MPT2SAS_ADAPTER *ioc, Mpi2ConfigReply_t _config_free_config_dma_memory(ioc, &mem); out: - mutex_unlock(&ioc->config_cmds.mutex); return r; } @@ -1511,7 +1476,6 @@ mpt2sas_config_get_raid_volume_pg1(struct MPT2SAS_ADAPTER *ioc, int r; struct config_request mem; - mutex_lock(&ioc->config_cmds.mutex); memset(config_page, 0, sizeof(Mpi2RaidVolPage1_t)); memset(&mpi_request, 0, sizeof(Mpi2ConfigRequest_t)); mpi_request.Function = MPI2_FUNCTION_CONFIG; @@ -1554,7 +1518,6 @@ mpt2sas_config_get_raid_volume_pg1(struct MPT2SAS_ADAPTER *ioc, _config_free_config_dma_memory(ioc, &mem); out: - mutex_unlock(&ioc->config_cmds.mutex); return r; } @@ -1578,7 +1541,6 @@ mpt2sas_config_get_number_pds(struct MPT2SAS_ADAPTER *ioc, u16 handle, struct config_request mem; u16 ioc_status; - mutex_lock(&ioc->config_cmds.mutex); memset(&mpi_request, 0, sizeof(Mpi2ConfigRequest_t)); *num_pds = 0; mpi_request.Function = MPI2_FUNCTION_CONFIG; @@ -1626,7 +1588,6 @@ mpt2sas_config_get_number_pds(struct MPT2SAS_ADAPTER *ioc, u16 handle, _config_free_config_dma_memory(ioc, &mem); out: - mutex_unlock(&ioc->config_cmds.mutex); return r; } @@ -1651,7 +1612,6 @@ mpt2sas_config_get_raid_volume_pg0(struct MPT2SAS_ADAPTER *ioc, int r; struct config_request mem; - mutex_lock(&ioc->config_cmds.mutex); memset(&mpi_request, 0, sizeof(Mpi2ConfigRequest_t)); memset(config_page, 0, sz); mpi_request.Function = MPI2_FUNCTION_CONFIG; @@ -1693,7 +1653,6 @@ mpt2sas_config_get_raid_volume_pg0(struct MPT2SAS_ADAPTER *ioc, _config_free_config_dma_memory(ioc, &mem); out: - mutex_unlock(&ioc->config_cmds.mutex); return r; } @@ -1717,7 +1676,6 @@ mpt2sas_config_get_phys_disk_pg0(struct MPT2SAS_ADAPTER *ioc, Mpi2ConfigReply_t int r; struct config_request mem; - mutex_lock(&ioc->config_cmds.mutex); memset(&mpi_request, 0, sizeof(Mpi2ConfigRequest_t)); memset(config_page, 0, sizeof(Mpi2RaidPhysDiskPage0_t)); mpi_request.Function = MPI2_FUNCTION_CONFIG; @@ -1760,7 +1718,6 @@ mpt2sas_config_get_phys_disk_pg0(struct MPT2SAS_ADAPTER *ioc, Mpi2ConfigReply_t _config_free_config_dma_memory(ioc, &mem); out: - mutex_unlock(&ioc->config_cmds.mutex); return r; } @@ -1784,7 +1741,6 @@ mpt2sas_config_get_volume_handle(struct MPT2SAS_ADAPTER *ioc, u16 pd_handle, struct config_request mem; u16 ioc_status; - mutex_lock(&ioc->config_cmds.mutex); *volume_handle = 0; memset(&mpi_request, 0, sizeof(Mpi2ConfigRequest_t)); mpi_request.Function = MPI2_FUNCTION_CONFIG; @@ -1848,7 +1804,6 @@ mpt2sas_config_get_volume_handle(struct MPT2SAS_ADAPTER *ioc, u16 pd_handle, _config_free_config_dma_memory(ioc, &mem); out: - mutex_unlock(&ioc->config_cmds.mutex); return r; } -- cgit v0.10.2 From 0527a1a8440a20b3d0fd1d0c9e75a6f38a9d5315 Mon Sep 17 00:00:00 2001 From: roel kluin Date: Fri, 14 Aug 2009 02:09:56 +0000 Subject: via-velocity: Fix test of mii_status bit VELOCITY_DUPLEX_FULL Test whether VELOCITY_DUPLEX_FULL bit is set in mii_status. Signed-off-by: Roel Kluin Signed-off-by: David S. Miller diff --git a/drivers/net/via-velocity.c b/drivers/net/via-velocity.c index 3ba3595..cee08a1 100644 --- a/drivers/net/via-velocity.c +++ b/drivers/net/via-velocity.c @@ -1778,7 +1778,7 @@ static void velocity_error(struct velocity_info *vptr, int status) * mode */ if (vptr->rev_id < REV_ID_VT3216_A0) { - if (vptr->mii_status | VELOCITY_DUPLEX_FULL) + if (vptr->mii_status & VELOCITY_DUPLEX_FULL) BYTE_REG_BITS_ON(TCR_TB2BDIS, ®s->TCR); else BYTE_REG_BITS_OFF(TCR_TB2BDIS, ®s->TCR); -- cgit v0.10.2 From 22580f894ac190c46beebb5c3172e450a2318f79 Mon Sep 17 00:00:00 2001 From: Dongdong Deng Date: Thu, 13 Aug 2009 19:12:31 +0000 Subject: drivers/net: fixed drivers that support netpoll use ndo_start_xmit() The NETPOLL API requires that interrupts remain disabled in netpoll_send_skb(). The use of spin_lock_irq() and spin_unlock_irq() in the NETPOLL API callbacks causes the interrupts to get enabled and can lead to kernel instability. The solution is to use spin_lock_irqsave() and spin_unlock_restore() to prevent the irqs from getting enabled while in netpoll_send_skb(). Call trace: netpoll_send_skb() { -> local_irq_save(flags) ---> dev->ndo_start_xmit(skb, dev) ---> spin_lock_irq() ---> spin_unlock_irq() *******here would enable the interrupt. ... -> local_irq_restore(flags) } Signed-off-by: Dongdong Deng Signed-off-by: Jason Wessel Acked-by: Bruce Ashfield Acked-by: Matt Mackall Signed-off-by: David S. Miller diff --git a/drivers/net/b44.c b/drivers/net/b44.c index 36d4d37..bafca67 100644 --- a/drivers/net/b44.c +++ b/drivers/net/b44.c @@ -952,9 +952,10 @@ static int b44_start_xmit(struct sk_buff *skb, struct net_device *dev) int rc = NETDEV_TX_OK; dma_addr_t mapping; u32 len, entry, ctrl; + unsigned long flags; len = skb->len; - spin_lock_irq(&bp->lock); + spin_lock_irqsave(&bp->lock, flags); /* This is a hard error, log it. */ if (unlikely(TX_BUFFS_AVAIL(bp) < 1)) { @@ -1027,7 +1028,7 @@ static int b44_start_xmit(struct sk_buff *skb, struct net_device *dev) dev->trans_start = jiffies; out_unlock: - spin_unlock_irq(&bp->lock); + spin_unlock_irqrestore(&bp->lock, flags); return rc; diff --git a/drivers/net/tulip/tulip_core.c b/drivers/net/tulip/tulip_core.c index 99a6364..4cf9a65 100644 --- a/drivers/net/tulip/tulip_core.c +++ b/drivers/net/tulip/tulip_core.c @@ -652,8 +652,9 @@ tulip_start_xmit(struct sk_buff *skb, struct net_device *dev) int entry; u32 flag; dma_addr_t mapping; + unsigned long flags; - spin_lock_irq(&tp->lock); + spin_lock_irqsave(&tp->lock, flags); /* Calculate the next Tx descriptor entry. */ entry = tp->cur_tx % TX_RING_SIZE; @@ -688,7 +689,7 @@ tulip_start_xmit(struct sk_buff *skb, struct net_device *dev) /* Trigger an immediate transmit demand. */ iowrite32(0, tp->base_addr + CSR1); - spin_unlock_irq(&tp->lock); + spin_unlock_irqrestore(&tp->lock, flags); dev->trans_start = jiffies; diff --git a/drivers/net/ucc_geth.c b/drivers/net/ucc_geth.c index 3b957e6..8a7b8c7 100644 --- a/drivers/net/ucc_geth.c +++ b/drivers/net/ucc_geth.c @@ -3111,10 +3111,11 @@ static int ucc_geth_start_xmit(struct sk_buff *skb, struct net_device *dev) u8 __iomem *bd; /* BD pointer */ u32 bd_status; u8 txQ = 0; + unsigned long flags; ugeth_vdbg("%s: IN", __func__); - spin_lock_irq(&ugeth->lock); + spin_lock_irqsave(&ugeth->lock, flags); dev->stats.tx_bytes += skb->len; @@ -3171,7 +3172,7 @@ static int ucc_geth_start_xmit(struct sk_buff *skb, struct net_device *dev) uccf = ugeth->uccf; out_be16(uccf->p_utodr, UCC_FAST_TOD); #endif - spin_unlock_irq(&ugeth->lock); + spin_unlock_irqrestore(&ugeth->lock, flags); return 0; } diff --git a/drivers/net/via-rhine.c b/drivers/net/via-rhine.c index 88c30a5..934f767 100644 --- a/drivers/net/via-rhine.c +++ b/drivers/net/via-rhine.c @@ -1218,6 +1218,7 @@ static int rhine_start_tx(struct sk_buff *skb, struct net_device *dev) struct rhine_private *rp = netdev_priv(dev); void __iomem *ioaddr = rp->base; unsigned entry; + unsigned long flags; /* Caution: the write order is important here, set the field with the "ownership" bits last. */ @@ -1261,7 +1262,7 @@ static int rhine_start_tx(struct sk_buff *skb, struct net_device *dev) cpu_to_le32(TXDESC | (skb->len >= ETH_ZLEN ? skb->len : ETH_ZLEN)); /* lock eth irq */ - spin_lock_irq(&rp->lock); + spin_lock_irqsave(&rp->lock, flags); wmb(); rp->tx_ring[entry].tx_status = cpu_to_le32(DescOwn); wmb(); @@ -1280,7 +1281,7 @@ static int rhine_start_tx(struct sk_buff *skb, struct net_device *dev) dev->trans_start = jiffies; - spin_unlock_irq(&rp->lock); + spin_unlock_irqrestore(&rp->lock, flags); if (debug > 4) { printk(KERN_DEBUG "%s: Transmit frame #%d queued in slot %d.\n", -- cgit v0.10.2 From 7c1d15d736687057f4dc6e51fbf44b6f6e4320cb Mon Sep 17 00:00:00 2001 From: Petko Manolov Date: Fri, 14 Aug 2009 06:40:48 +0000 Subject: pegasus: Add new device ID. MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Add new definition to 'pegasus.h' for support Japanese IO DATA "ETX-US2" USB Ethernet Adapter. PEGASUS_DEV( $B!H(BIO DATA USB ETX-US2$B!I(B, VENDOR_IODATA, 0x092a, DEFAULT_GPIO_RESET | PEGASUS_II ) Signed-off-by: David S. Miller diff --git a/drivers/net/usb/pegasus.h b/drivers/net/usb/pegasus.h index c746782..f968c83 100644 --- a/drivers/net/usb/pegasus.h +++ b/drivers/net/usb/pegasus.h @@ -250,6 +250,8 @@ PEGASUS_DEV( "IO DATA USB ET/TX", VENDOR_IODATA, 0x0904, DEFAULT_GPIO_RESET ) PEGASUS_DEV( "IO DATA USB ET/TX-S", VENDOR_IODATA, 0x0913, DEFAULT_GPIO_RESET | PEGASUS_II ) +PEGASUS_DEV( "IO DATA USB ETX-US2", VENDOR_IODATA, 0x092a, + DEFAULT_GPIO_RESET | PEGASUS_II ) PEGASUS_DEV( "Kingston KNU101TX Ethernet", VENDOR_KINGSTON, 0x000a, DEFAULT_GPIO_RESET) PEGASUS_DEV( "LANEED USB Ethernet LD-USB/TX", VENDOR_LANEED, 0x4002, -- cgit v0.10.2 From 8cdb045632e5ee22854538619ac6f150eb0a4894 Mon Sep 17 00:00:00 2001 From: Tom Goff Date: Fri, 14 Aug 2009 16:33:56 -0700 Subject: gre: Fix MTU calculation for bound GRE tunnels The GRE header length should be subtracted when the tunnel MTU is calculated. This just corrects for the associativity change introduced by commit 42aa916265d740d66ac1f17290366e9494c884c2 ("gre: Move MTU setting out of ipgre_tunnel_bind_dev"). Signed-off-by: Tom Goff Signed-off-by: David S. Miller diff --git a/net/ipv4/ip_gre.c b/net/ipv4/ip_gre.c index cb4a0f4..82c11dd 100644 --- a/net/ipv4/ip_gre.c +++ b/net/ipv4/ip_gre.c @@ -951,7 +951,7 @@ static int ipgre_tunnel_bind_dev(struct net_device *dev) addend += 4; } dev->needed_headroom = addend + hlen; - mtu -= dev->hard_header_len - addend; + mtu -= dev->hard_header_len + addend; if (mtu < 68) mtu = 68; -- cgit v0.10.2 From 616b8434688aa08bd6f019cc60c8dfe121e9e5ae Mon Sep 17 00:00:00 2001 From: Jerome Glisse Date: Thu, 6 Aug 2009 17:47:24 +0200 Subject: drm/radeon/kms: Add specific rs690 authorized register table rs690 is r3xx 3D engine with AVIVO modesetting so we need to allow AVIVO register for vline synchronization. This add a specific table to rs690 to handle that. Thanks to Marc (marvin24) for debugging this and kudos to Andre (taiu1) for spotting the origin of the bugs. Signed-off-by: Jerome Glisse Signed-off-by: Dave Airlie diff --git a/drivers/gpu/drm/radeon/radeon_asic.h b/drivers/gpu/drm/radeon/radeon_asic.h index 9a75876..c0ae2d9 100644 --- a/drivers/gpu/drm/radeon/radeon_asic.h +++ b/drivers/gpu/drm/radeon/radeon_asic.h @@ -308,6 +308,7 @@ static struct radeon_asic rs600_asic = { /* * rs690,rs740 */ +int rs690_init(struct radeon_device *rdev); void rs690_errata(struct radeon_device *rdev); void rs690_vram_info(struct radeon_device *rdev); int rs690_mc_init(struct radeon_device *rdev); @@ -316,7 +317,7 @@ uint32_t rs690_mc_rreg(struct radeon_device *rdev, uint32_t reg); void rs690_mc_wreg(struct radeon_device *rdev, uint32_t reg, uint32_t v); void rs690_bandwidth_update(struct radeon_device *rdev); static struct radeon_asic rs690_asic = { - .init = &r300_init, + .init = &rs690_init, .errata = &rs690_errata, .vram_info = &rs690_vram_info, .gpu_reset = &r300_gpu_reset, diff --git a/drivers/gpu/drm/radeon/rs690.c b/drivers/gpu/drm/radeon/rs690.c index 839595b..bc6b7c5 100644 --- a/drivers/gpu/drm/radeon/rs690.c +++ b/drivers/gpu/drm/radeon/rs690.c @@ -652,3 +652,68 @@ void rs690_mc_wreg(struct radeon_device *rdev, uint32_t reg, uint32_t v) WREG32(RS690_MC_DATA, v); WREG32(RS690_MC_INDEX, RS690_MC_INDEX_WR_ACK); } + +static const unsigned rs690_reg_safe_bm[219] = { + 0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF, + 0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF, + 0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF, + 0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF, + 0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF, + 0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF, + 0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF, + 0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF, + 0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF, + 0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF, + 0x17FF1FFF,0xFFFFFFFC,0xFFFFFFFF,0xFF30FFBF, + 0xFFFFFFF8,0xC3E6FFFF,0xFFFFF6DF,0xFFFFFFFF, + 0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF, + 0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF, + 0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF,0xFFFFF03F, + 0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF, + 0xFFFFFFFF,0xFFFFEFCE,0xF00EBFFF,0x007C0000, + 0xF0000078,0xFF000009,0xFFFFFFFF,0xFFFFFFFF, + 0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF, + 0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF, + 0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF, + 0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF, + 0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF, + 0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF, + 0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF, + 0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF, + 0xFFFFF7FF,0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF, + 0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF, + 0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF, + 0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF, + 0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF, + 0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF, + 0xFFFFFC78,0xFFFFFFFF,0xFFFFFFFE,0xFFFFFFFF, + 0x38FF8F50,0xFFF88082,0xF000000C,0xFAE009FF, + 0x0000FFFF,0xFFFFFFFF,0xFFFFFFFF,0x00000000, + 0x00000000,0x0000C100,0x00000000,0x00000000, + 0x00000000,0x00000000,0x00000000,0x00000000, + 0x00000000,0xFFFF0000,0xFFFFFFFF,0xFF80FFFF, + 0x00000000,0x00000000,0x00000000,0x00000000, + 0x0003FC01,0xFFFFFFF8,0xFE800B19,0xFFFFFFFF, + 0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF, + 0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF, + 0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF, + 0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF, + 0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF, + 0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF, + 0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF, + 0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF, + 0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF, + 0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF, + 0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF, + 0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF, + 0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF, + 0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF, + 0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF, +}; + +int rs690_init(struct radeon_device *rdev) +{ + rdev->config.r300.reg_safe_bm = rs690_reg_safe_bm; + rdev->config.r300.reg_safe_bm_size = ARRAY_SIZE(rs690_reg_safe_bm); + return 0; +} -- cgit v0.10.2 From ebb177d2afb8532a8a316489aed545ed0c170802 Mon Sep 17 00:00:00 2001 From: Dave Airlie Date: Sat, 15 Aug 2009 12:25:08 +1000 Subject: drm/edid: fixup detailed timings like the X server. this syncs the versioning check with the code the X server uses. Reported-by: Anssi Hannula Signed-off-by: Dave Airlie diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c index 80cc6d0..7f2728b 100644 --- a/drivers/gpu/drm/drm_edid.c +++ b/drivers/gpu/drm/drm_edid.c @@ -502,12 +502,40 @@ static int add_detailed_info(struct drm_connector *connector, struct detailed_non_pixel *data = &timing->data.other_data; struct drm_display_mode *newmode; - /* EDID up to and including 1.2 may put monitor info here */ - if (edid->version == 1 && edid->revision < 3) - continue; - - /* Detailed mode timing */ - if (timing->pixel_clock) { + /* X server check is version 1.1 or higher */ + if (edid->version == 1 && edid->revision >= 1 && + !timing->pixel_clock) { + /* Other timing or info */ + switch (data->type) { + case EDID_DETAIL_MONITOR_SERIAL: + break; + case EDID_DETAIL_MONITOR_STRING: + break; + case EDID_DETAIL_MONITOR_RANGE: + /* Get monitor range data */ + break; + case EDID_DETAIL_MONITOR_NAME: + break; + case EDID_DETAIL_MONITOR_CPDATA: + break; + case EDID_DETAIL_STD_MODES: + /* Five modes per detailed section */ + for (j = 0; j < 5; i++) { + struct std_timing *std; + struct drm_display_mode *newmode; + + std = &data->data.timings[j]; + newmode = drm_mode_std(dev, std); + if (newmode) { + drm_mode_probed_add(connector, newmode); + modes++; + } + } + break; + default: + break; + } + } else { newmode = drm_mode_detailed(dev, edid, timing, quirks); if (!newmode) continue; @@ -518,38 +546,6 @@ static int add_detailed_info(struct drm_connector *connector, drm_mode_probed_add(connector, newmode); modes++; - continue; - } - - /* Other timing or info */ - switch (data->type) { - case EDID_DETAIL_MONITOR_SERIAL: - break; - case EDID_DETAIL_MONITOR_STRING: - break; - case EDID_DETAIL_MONITOR_RANGE: - /* Get monitor range data */ - break; - case EDID_DETAIL_MONITOR_NAME: - break; - case EDID_DETAIL_MONITOR_CPDATA: - break; - case EDID_DETAIL_STD_MODES: - /* Five modes per detailed section */ - for (j = 0; j < 5; i++) { - struct std_timing *std; - struct drm_display_mode *newmode; - - std = &data->data.timings[j]; - newmode = drm_mode_std(dev, std); - if (newmode) { - drm_mode_probed_add(connector, newmode); - modes++; - } - } - break; - default: - break; } } -- cgit v0.10.2 From 21bc1f024d0d4ea43fc0f2a43504e759261c7b18 Mon Sep 17 00:00:00 2001 From: Magnus Damm Date: Sat, 15 Aug 2009 02:53:16 +0000 Subject: sh: skip disabled LCDC channels This patch updates the SuperH Mobile LCDC driver to skip over disabled channels. Without this patch suspend-to-ram operation will crash if deferred io is enabled. Signed-off-by: Magnus Damm Signed-off-by: Paul Mundt diff --git a/drivers/video/sh_mobile_lcdcfb.c b/drivers/video/sh_mobile_lcdcfb.c index 8f24564..07f22b6 100644 --- a/drivers/video/sh_mobile_lcdcfb.c +++ b/drivers/video/sh_mobile_lcdcfb.c @@ -481,6 +481,9 @@ static int sh_mobile_lcdc_start(struct sh_mobile_lcdc_priv *priv) /* tell the board code to enable the panel */ for (k = 0; k < ARRAY_SIZE(priv->ch); k++) { ch = &priv->ch[k]; + if (!ch->enabled) + continue; + board_cfg = &ch->cfg.board_cfg; if (board_cfg->display_on) board_cfg->display_on(board_cfg->board_data); @@ -498,6 +501,8 @@ static void sh_mobile_lcdc_stop(struct sh_mobile_lcdc_priv *priv) /* clean up deferred io and ask board code to disable panel */ for (k = 0; k < ARRAY_SIZE(priv->ch); k++) { ch = &priv->ch[k]; + if (!ch->enabled) + continue; /* deferred io mode: * flush frame, and wait for frame end interrupt -- cgit v0.10.2 From f6431732f128a241b149c0aa85dfec852455ebf9 Mon Sep 17 00:00:00 2001 From: Magnus Damm Date: Sat, 15 Aug 2009 02:53:25 +0000 Subject: sh: CMT suspend/resume This patch updates the SuperH CMT driver with suspend and resume callbacks for the suspend-to-ram case. This patch stops the CMT channel at suspend time to avoid unwanted wake up events. Signed-off-by: Magnus Damm Signed-off-by: Paul Mundt diff --git a/drivers/clocksource/sh_cmt.c b/drivers/clocksource/sh_cmt.c index 2964f5f..6b3e0c2 100644 --- a/drivers/clocksource/sh_cmt.c +++ b/drivers/clocksource/sh_cmt.c @@ -40,6 +40,7 @@ struct sh_cmt_priv { struct platform_device *pdev; unsigned long flags; + unsigned long flags_suspend; unsigned long match_value; unsigned long next_match_value; unsigned long max_match_value; @@ -667,11 +668,38 @@ static int __devexit sh_cmt_remove(struct platform_device *pdev) return -EBUSY; /* cannot unregister clockevent and clocksource */ } +static int sh_cmt_suspend(struct device *dev) +{ + struct platform_device *pdev = to_platform_device(dev); + struct sh_cmt_priv *p = platform_get_drvdata(pdev); + + /* save flag state and stop CMT channel */ + p->flags_suspend = p->flags; + sh_cmt_stop(p, p->flags); + return 0; +} + +static int sh_cmt_resume(struct device *dev) +{ + struct platform_device *pdev = to_platform_device(dev); + struct sh_cmt_priv *p = platform_get_drvdata(pdev); + + /* start CMT channel from saved state */ + sh_cmt_start(p, p->flags_suspend); + return 0; +} + +static struct dev_pm_ops sh_cmt_dev_pm_ops = { + .suspend = sh_cmt_suspend, + .resume = sh_cmt_resume, +}; + static struct platform_driver sh_cmt_device_driver = { .probe = sh_cmt_probe, .remove = __devexit_p(sh_cmt_remove), .driver = { .name = "sh_cmt", + .pm = &sh_cmt_dev_pm_ops, } }; -- cgit v0.10.2 From 9747e78b304b44d6fb73e2c8071406d55aa8bb75 Mon Sep 17 00:00:00 2001 From: Magnus Damm Date: Sat, 15 Aug 2009 02:53:34 +0000 Subject: sh: use in-soc KEYSC on se7724 This patch updates the Solution Engine 7724 board code to use in-SoC KEYSC resources for the keyboard platform device. Using the in-SoC key scan controller fixes a crash-during-resume issue. Without this patch the KEYSC hardware block located in the board specific FPGA is used together with an external IRQ which is routed through the FPGA and handled by some board specific demux code. This board specific FPGA interrupt code does not implement desc->set_wake() so the enable_irq_wake() call in the sh_keysc driver will fail at suspend-to-ram time and the disable_irq_wake() will bomb out when resuming. Changing the platform data to use the in-SoC KEYSC hardware makes the se7724 board support code less special which is a good thing. Also, the board specific KEYSC pin setup code selects in-SoC pin functions already which makes the current FPGA platform device data look like a typo. Signed-off-by: Magnus Damm Signed-off-by: Paul Mundt diff --git a/arch/sh/boards/mach-se/7724/setup.c b/arch/sh/boards/mach-se/7724/setup.c index 8fed45a..15456a0 100644 --- a/arch/sh/boards/mach-se/7724/setup.c +++ b/arch/sh/boards/mach-se/7724/setup.c @@ -238,7 +238,7 @@ static struct platform_device ceu1_device = { }, }; -/* KEYSC */ +/* KEYSC in SoC (Needs SW33-2 set to ON) */ static struct sh_keysc_info keysc_info = { .mode = SH_KEYSC_MODE_1, .scan_timing = 10, @@ -255,12 +255,13 @@ static struct sh_keysc_info keysc_info = { static struct resource keysc_resources[] = { [0] = { - .start = 0x1a204000, - .end = 0x1a20400f, + .name = "KEYSC", + .start = 0x044b0000, + .end = 0x044b000f, .flags = IORESOURCE_MEM, }, [1] = { - .start = IRQ0_KEY, + .start = 79, .flags = IORESOURCE_IRQ, }, }; -- cgit v0.10.2 From 237674e050ae8ea40a432412df6c15d60b7ae8a6 Mon Sep 17 00:00:00 2001 From: Magnus Damm Date: Sat, 15 Aug 2009 02:53:42 +0000 Subject: sh: sh7724 ddr self-refresh changes This patch updates the SuperH Mobile sleep assembly code with support for DBSC memory controller found in the sh7724 processor. Without this fix the memory hooked up to the sh7724 processor will never enter self-refresh mode before suspending to ram. The effect of this is that the memory contents most likeley will be lost upon resume which may or may not be what you want. Signed-off-by: Magnus Damm Signed-off-by: Paul Mundt diff --git a/arch/sh/kernel/cpu/shmobile/sleep.S b/arch/sh/kernel/cpu/shmobile/sleep.S index 5d888ef..baf2d7d 100644 --- a/arch/sh/kernel/cpu/shmobile/sleep.S +++ b/arch/sh/kernel/cpu/shmobile/sleep.S @@ -26,8 +26,30 @@ ENTRY(sh_mobile_standby) tst #SUSP_SH_SF, r0 bt skip_set_sf +#ifdef CONFIG_CPU_SUBTYPE_SH7724 + /* DBSC: put memory in self-refresh mode */ - /* SDRAM: disable power down and put in self-refresh mode */ + mov.l dben_reg, r4 + mov.l dben_data0, r1 + mov.l r1, @r4 + + mov.l dbrfpdn0_reg, r4 + mov.l dbrfpdn0_data0, r1 + mov.l r1, @r4 + + mov.l dbcmdcnt_reg, r4 + mov.l dbcmdcnt_data0, r1 + mov.l r1, @r4 + + mov.l dbcmdcnt_reg, r4 + mov.l dbcmdcnt_data1, r1 + mov.l r1, @r4 + + mov.l dbrfpdn0_reg, r4 + mov.l dbrfpdn0_data1, r1 + mov.l r1, @r4 +#else + /* SBSC: disable power down and put in self-refresh mode */ mov.l 1f, r4 mov.l 2f, r1 mov.l @r4, r2 @@ -35,6 +57,7 @@ ENTRY(sh_mobile_standby) mov.l 3f, r3 and r3, r2 mov.l r2, @r4 +#endif skip_set_sf: tst #SUSP_SH_SLEEP, r0 @@ -84,7 +107,36 @@ done_sleep: tst #SUSP_SH_SF, r0 bt skip_restore_sf - /* SDRAM: set auto-refresh mode */ +#ifdef CONFIG_CPU_SUBTYPE_SH7724 + /* DBSC: put memory in auto-refresh mode */ + + mov.l dbrfpdn0_reg, r4 + mov.l dbrfpdn0_data0, r1 + mov.l r1, @r4 + + /* sleep 140 ns */ + nop + nop + nop + nop + + mov.l dbcmdcnt_reg, r4 + mov.l dbcmdcnt_data0, r1 + mov.l r1, @r4 + + mov.l dbcmdcnt_reg, r4 + mov.l dbcmdcnt_data1, r1 + mov.l r1, @r4 + + mov.l dben_reg, r4 + mov.l dben_data1, r1 + mov.l r1, @r4 + + mov.l dbrfpdn0_reg, r4 + mov.l dbrfpdn0_data2, r1 + mov.l r1, @r4 +#else + /* SBSC: set auto-refresh mode */ mov.l 1f, r4 mov.l @r4, r2 mov.l 4f, r3 @@ -98,15 +150,29 @@ done_sleep: add r4, r3 or r2, r3 mov.l r3, @r1 +#endif skip_restore_sf: rts nop .balign 4 +#ifdef CONFIG_CPU_SUBTYPE_SH7724 +dben_reg: .long 0xfd000010 /* DBEN */ +dben_data0: .long 0 +dben_data1: .long 1 +dbrfpdn0_reg: .long 0xfd000040 /* DBRFPDN0 */ +dbrfpdn0_data0: .long 0 +dbrfpdn0_data1: .long 1 +dbrfpdn0_data2: .long 0x00010000 +dbcmdcnt_reg: .long 0xfd000014 /* DBCMDCNT */ +dbcmdcnt_data0: .long 2 +dbcmdcnt_data1: .long 4 +#else 1: .long 0xfe400008 /* SDCR0 */ 2: .long 0x00000400 3: .long 0xffff7fff 4: .long 0xfffffbff +#endif 5: .long 0xa4150020 /* STBCR */ 6: .long 0xfe40001c /* RTCOR */ 7: .long 0xfe400018 /* RTCNT */ -- cgit v0.10.2 From 3ef12c3c97603bad405d30c989718cc9405e2759 Mon Sep 17 00:00:00 2001 From: Cliff Wickman Date: Fri, 14 Aug 2009 13:56:37 -0500 Subject: x86: Fix UV BAU destination subnode id The SGI UV Broadcast Assist Unit is used to send TLB shootdown messages to remote nodes of the system. The header of the message must contain the subnode id of the block in the receiving hub that handles such messages. It should always be 0x10, the id of the "LB" block. It had previously been documented as a "must be zero" field. Signed-off-by: Cliff Wickman Acked-by: Jack Steiner LKML-Reference: Signed-off-by: Ingo Molnar diff --git a/arch/x86/include/asm/uv/uv_bau.h b/arch/x86/include/asm/uv/uv_bau.h index bddd44f..80e2984 100644 --- a/arch/x86/include/asm/uv/uv_bau.h +++ b/arch/x86/include/asm/uv/uv_bau.h @@ -133,7 +133,7 @@ struct bau_msg_payload { * see table 4.2.3.0.1 in broacast_assist spec. */ struct bau_msg_header { - unsigned int dest_subnodeid:6; /* must be zero */ + unsigned int dest_subnodeid:6; /* must be 0x10, for the LB */ /* bits 5:0 */ unsigned int base_dest_nodeid:15; /* nasid>>1 (pnode) of */ /* bits 20:6 */ /* first bit in node_map */ diff --git a/arch/x86/kernel/tlb_uv.c b/arch/x86/kernel/tlb_uv.c index 8ccabb8..77b9689 100644 --- a/arch/x86/kernel/tlb_uv.c +++ b/arch/x86/kernel/tlb_uv.c @@ -744,6 +744,7 @@ uv_activation_descriptor_init(int node, int pnode) * note that base_dest_nodeid is actually a nasid. */ ad2->header.base_dest_nodeid = uv_partition_base_pnode << 1; + ad2->header.dest_subnodeid = 0x10; /* the LB */ ad2->header.command = UV_NET_ENDPOINT_INTD; ad2->header.int_both = 1; /* -- cgit v0.10.2 From 39e6dd73502f64e2ae3236b304e160ae30de9384 Mon Sep 17 00:00:00 2001 From: Arnaldo Carvalho de Melo Date: Fri, 14 Aug 2009 15:26:32 -0300 Subject: perf record: Fix typo in pid_synthesize_comm_event We were using 'fd' locally, but there was a global 'fd' too, so when converting from open to fopen the test made against fd should be made against 'fp', but since we have that global it didnt get discovered ... Reported-by: Ulrich Drepper Signed-off-by: Arnaldo Carvalho de Melo Cc: Peter Zijlstra LKML-Reference: <20090814182632.GF3490@ghostprotocols.net> Signed-off-by: Ingo Molnar diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c index 3d051b9..89a5ddc 100644 --- a/tools/perf/builtin-record.c +++ b/tools/perf/builtin-record.c @@ -219,7 +219,7 @@ static pid_t pid_synthesize_comm_event(pid_t pid, int full) snprintf(filename, sizeof(filename), "/proc/%d/status", pid); fp = fopen(filename, "r"); - if (fd == NULL) { + if (fp == NULL) { /* * We raced with a task exiting - just return: */ -- cgit v0.10.2 From dde5828f56cb2c1aa70365c476e6830482127258 Mon Sep 17 00:00:00 2001 From: Russell King Date: Sat, 15 Aug 2009 12:36:00 +0100 Subject: ARM: Fix broken highmem support Currently, highmem is selectable, and you can request an increased vmalloc area. However, none of this has any effect on the memory layout since a patch in the highmem series was accidentally dropped. Moreover, even if you did want highmem, all memory would still be registered as lowmem, possibly resulting in overflow of the available virtual mapping space. The highmem boundary is determined by the highest allowed beginning of the vmalloc area, which depends on its configurable minimum size (see commit 60296c71f6c5063e3c1f1d2619ca0b60940162e7 for details on this). We should create mappings and initialize bootmem only for low memory, while the zone allocator must still be told about highmem. Currently, memory nodes which are completely located in high memory are not supported. This is not a huge limitation since systems relying on highmem support are unlikely to have discontiguous memory with large holes. [ A similar patch was meant to be merged before commit 5f0fbf9ecaf3 and be available in Linux v2.6.30, however some git rebase screw-up of mine dropped the first commit of the series, and that goofage escaped testing somehow as well. -- Nico ] Signed-off-by: Russell King Reviewed-by: Nicolas Pitre diff --git a/arch/arm/include/asm/setup.h b/arch/arm/include/asm/setup.h index ee1304f..5ccce0a 100644 --- a/arch/arm/include/asm/setup.h +++ b/arch/arm/include/asm/setup.h @@ -201,7 +201,8 @@ static struct tagtable __tagtable_##fn __tag = { tag, fn } struct membank { unsigned long start; unsigned long size; - int node; + unsigned short node; + unsigned short highmem; }; struct meminfo { diff --git a/arch/arm/mm/init.c b/arch/arm/mm/init.c index 8277802..3a7279c 100644 --- a/arch/arm/mm/init.c +++ b/arch/arm/mm/init.c @@ -120,6 +120,32 @@ void show_mem(void) printk("%d pages swap cached\n", cached); } +static void __init find_node_limits(int node, struct meminfo *mi, + unsigned long *min, unsigned long *max_low, unsigned long *max_high) +{ + int i; + + *min = -1UL; + *max_low = *max_high = 0; + + for_each_nodebank(i, mi, node) { + struct membank *bank = &mi->bank[i]; + unsigned long start, end; + + start = bank_pfn_start(bank); + end = bank_pfn_end(bank); + + if (*min > start) + *min = start; + if (*max_high < end) + *max_high = end; + if (bank->highmem) + continue; + if (*max_low < end) + *max_low = end; + } +} + /* * FIXME: We really want to avoid allocating the bootmap bitmap * over the top of the initrd. Hopefully, this is located towards @@ -210,41 +236,25 @@ static inline void map_memory_bank(struct membank *bank) #endif } -static unsigned long __init bootmem_init_node(int node, struct meminfo *mi) +static void __init bootmem_init_node(int node, struct meminfo *mi, + unsigned long start_pfn, unsigned long end_pfn) { - unsigned long start_pfn, end_pfn, boot_pfn; + unsigned long boot_pfn; unsigned int boot_pages; pg_data_t *pgdat; int i; - start_pfn = -1UL; - end_pfn = 0; - /* - * Calculate the pfn range, and map the memory banks for this node. + * Map the memory banks for this node. */ for_each_nodebank(i, mi, node) { struct membank *bank = &mi->bank[i]; - unsigned long start, end; - start = bank_pfn_start(bank); - end = bank_pfn_end(bank); - - if (start_pfn > start) - start_pfn = start; - if (end_pfn < end) - end_pfn = end; - - map_memory_bank(bank); + if (!bank->highmem) + map_memory_bank(bank); } /* - * If there is no memory in this node, ignore it. - */ - if (end_pfn == 0) - return end_pfn; - - /* * Allocate the bootmem bitmap page. */ boot_pages = bootmem_bootmap_pages(end_pfn - start_pfn); @@ -260,7 +270,8 @@ static unsigned long __init bootmem_init_node(int node, struct meminfo *mi) for_each_nodebank(i, mi, node) { struct membank *bank = &mi->bank[i]; - free_bootmem_node(pgdat, bank_phys_start(bank), bank_phys_size(bank)); + if (!bank->highmem) + free_bootmem_node(pgdat, bank_phys_start(bank), bank_phys_size(bank)); memory_present(node, bank_pfn_start(bank), bank_pfn_end(bank)); } @@ -269,8 +280,6 @@ static unsigned long __init bootmem_init_node(int node, struct meminfo *mi) */ reserve_bootmem_node(pgdat, boot_pfn << PAGE_SHIFT, boot_pages << PAGE_SHIFT, BOOTMEM_DEFAULT); - - return end_pfn; } static void __init bootmem_reserve_initrd(int node) @@ -297,33 +306,39 @@ static void __init bootmem_reserve_initrd(int node) static void __init bootmem_free_node(int node, struct meminfo *mi) { unsigned long zone_size[MAX_NR_ZONES], zhole_size[MAX_NR_ZONES]; - unsigned long start_pfn, end_pfn; - pg_data_t *pgdat = NODE_DATA(node); + unsigned long min, max_low, max_high; int i; - start_pfn = pgdat->bdata->node_min_pfn; - end_pfn = pgdat->bdata->node_low_pfn; + find_node_limits(node, mi, &min, &max_low, &max_high); /* * initialise the zones within this node. */ memset(zone_size, 0, sizeof(zone_size)); - memset(zhole_size, 0, sizeof(zhole_size)); /* * The size of this node has already been determined. If we need * to do anything fancy with the allocation of this memory to the * zones, now is the time to do it. */ - zone_size[0] = end_pfn - start_pfn; + zone_size[0] = max_low - min; +#ifdef CONFIG_HIGHMEM + zone_size[ZONE_HIGHMEM] = max_high - max_low; +#endif /* * For each bank in this node, calculate the size of the holes. * holes = node_size - sum(bank_sizes_in_node) */ - zhole_size[0] = zone_size[0]; - for_each_nodebank(i, mi, node) - zhole_size[0] -= bank_pfn_size(&mi->bank[i]); + memcpy(zhole_size, zone_size, sizeof(zhole_size)); + for_each_nodebank(i, mi, node) { + int idx = 0; +#ifdef CONFIG_HIGHMEM + if (mi->bank[i].highmem) + idx = ZONE_HIGHMEM; +#endif + zhole_size[idx] -= bank_pfn_size(&mi->bank[i]); + } /* * Adjust the sizes according to any special requirements for @@ -331,13 +346,13 @@ static void __init bootmem_free_node(int node, struct meminfo *mi) */ arch_adjust_zones(node, zone_size, zhole_size); - free_area_init_node(node, zone_size, start_pfn, zhole_size); + free_area_init_node(node, zone_size, min, zhole_size); } void __init bootmem_init(void) { struct meminfo *mi = &meminfo; - unsigned long memend_pfn = 0; + unsigned long min, max_low, max_high; int node, initrd_node; /* @@ -345,11 +360,29 @@ void __init bootmem_init(void) */ initrd_node = check_initrd(mi); + max_low = max_high = 0; + /* * Run through each node initialising the bootmem allocator. */ for_each_node(node) { - unsigned long end_pfn = bootmem_init_node(node, mi); + unsigned long node_low, node_high; + + find_node_limits(node, mi, &min, &node_low, &node_high); + + if (node_low > max_low) + max_low = node_low; + if (node_high > max_high) + max_high = node_high; + + /* + * If there is no memory in this node, ignore it. + * (We can't have nodes which have no lowmem) + */ + if (node_low == 0) + continue; + + bootmem_init_node(node, mi, min, node_low); /* * Reserve any special node zero regions. @@ -362,12 +395,6 @@ void __init bootmem_init(void) */ if (node == initrd_node) bootmem_reserve_initrd(node); - - /* - * Remember the highest memory PFN. - */ - if (end_pfn > memend_pfn) - memend_pfn = end_pfn; } /* @@ -383,7 +410,7 @@ void __init bootmem_init(void) for_each_node(node) bootmem_free_node(node, mi); - high_memory = __va((memend_pfn << PAGE_SHIFT) - 1) + 1; + high_memory = __va((max_low << PAGE_SHIFT) - 1) + 1; /* * This doesn't seem to be used by the Linux memory manager any @@ -393,7 +420,8 @@ void __init bootmem_init(void) * Note: max_low_pfn and max_pfn reflect the number of _pages_ in * the system, not the maximum PFN. */ - max_pfn = max_low_pfn = memend_pfn - PHYS_PFN_OFFSET; + max_low_pfn = max_low - PHYS_PFN_OFFSET; + max_pfn = max_high - PHYS_PFN_OFFSET; } static inline int free_area(unsigned long pfn, unsigned long end, char *s) diff --git a/arch/arm/mm/mmu.c b/arch/arm/mm/mmu.c index 4722582..4426ee6 100644 --- a/arch/arm/mm/mmu.c +++ b/arch/arm/mm/mmu.c @@ -687,13 +687,19 @@ __early_param("vmalloc=", early_vmalloc); static void __init sanity_check_meminfo(void) { - int i, j; + int i, j, highmem = 0; for (i = 0, j = 0; i < meminfo.nr_banks; i++) { struct membank *bank = &meminfo.bank[j]; *bank = meminfo.bank[i]; #ifdef CONFIG_HIGHMEM + if (__va(bank->start) > VMALLOC_MIN || + __va(bank->start) < (void *)PAGE_OFFSET) + highmem = 1; + + bank->highmem = highmem; + /* * Split those memory banks which are partially overlapping * the vmalloc area greatly simplifying things later. @@ -714,6 +720,7 @@ static void __init sanity_check_meminfo(void) i++; bank[1].size -= VMALLOC_MIN - __va(bank->start); bank[1].start = __pa(VMALLOC_MIN - 1) + 1; + bank[1].highmem = highmem = 1; j++; } bank->size = VMALLOC_MIN - __va(bank->start); -- cgit v0.10.2 From c5e7f5a38a7ebf3697281bc7cb494e676f287ac0 Mon Sep 17 00:00:00 2001 From: Florian Fainelli Date: Wed, 3 Jun 2009 13:05:48 +0200 Subject: [WATCHDOG] ar7_wdt: fix path to ar7-specific headers AR7 is currently being resubmitted for mainline inclusion and we changed the path to the ar7-specific headers from ar7 to mach-ar7 to reflect the other MIPS-based boards header hierarchy. This patch will avoid any future compilation failure due to missing headers. Signed-off-by: Florian Fainelli Signed-off-by: Wim Van Sebroeck diff --git a/drivers/watchdog/ar7_wdt.c b/drivers/watchdog/ar7_wdt.c index 3fe9742..2f8643e 100644 --- a/drivers/watchdog/ar7_wdt.c +++ b/drivers/watchdog/ar7_wdt.c @@ -37,7 +37,7 @@ #include #include -#include +#include #define DRVNAME "ar7_wdt" #define LONGNAME "TI AR7 Watchdog Timer" -- cgit v0.10.2 From a2bb9f4d6a5a589b481595207ac3588cc08d1b60 Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Thu, 13 Aug 2009 21:57:22 +0100 Subject: ARM: 5673/1: U300 fix initsection compile warning The u300_init_check_chip() function was not properly tagged with the __init macro and provided a initsection mismatch on compilation. Signed-off-by: Linus Walleij Signed-off-by: Russell King diff --git a/arch/arm/mach-u300/core.c b/arch/arm/mach-u300/core.c index 7936085..2e9b8cc 100644 --- a/arch/arm/mach-u300/core.c +++ b/arch/arm/mach-u300/core.c @@ -510,7 +510,7 @@ static struct db_chip db_chips[] __initdata = { } }; -static void u300_init_check_chip(void) +static void __init u300_init_check_chip(void) { u16 val; -- cgit v0.10.2 From 3f8befec95d5c1bbc6e247e1a5dafa82519530f9 Mon Sep 17 00:00:00 2001 From: Dave Airlie Date: Sat, 15 Aug 2009 20:54:13 +1000 Subject: drm/radeon/kms: add rv530 R300_SU_REG_DEST + reloc for ZPASS_ADDR These are needed for Occulsion Query support. Signed-off-by: Dave Airlie diff --git a/drivers/gpu/drm/radeon/r300.c b/drivers/gpu/drm/radeon/r300.c index 9c8d415..8594486 100644 --- a/drivers/gpu/drm/radeon/r300.c +++ b/drivers/gpu/drm/radeon/r300.c @@ -1403,6 +1403,21 @@ static int r300_packet0_check(struct radeon_cs_parser *p, tmp = (ib_chunk->kdata[idx] >> 22) & 0xF; track->textures[i].txdepth = tmp; break; + case R300_ZB_ZPASS_ADDR: + r = r100_cs_packet_next_reloc(p, &reloc); + if (r) { + DRM_ERROR("No reloc for ib[%d]=0x%04X\n", + idx, reg); + r100_cs_dump_packet(p, pkt); + return r; + } + ib[idx] = ib_chunk->kdata[idx] + ((u32)reloc->lobj.gpu_offset); + break; + case 0x4be8: + /* valid register only on RV530 */ + if (p->rdev->family == CHIP_RV530) + break; + /* fallthrough do not move */ default: printk(KERN_ERR "Forbidden register 0x%04X in cs at %d\n", reg, idx); -- cgit v0.10.2 From 7ed220d738cf16adff6bc3b31ad25b8848a2fa9c Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Michel=20D=C3=A4nzer?= Date: Thu, 13 Aug 2009 11:10:51 +0200 Subject: drm/radeon/kms: Fix up vertical blank interrupt support. MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Fixes 3D apps timing out in the WAIT_VBLANK ioctl. AVIVO bits compile-tested only. Signed-off-by: Michel Dänzer Signed-off-by: Dave Airlie diff --git a/drivers/gpu/drm/radeon/r100.c b/drivers/gpu/drm/radeon/r100.c index f1ba8ff..e1a6e82 100644 --- a/drivers/gpu/drm/radeon/r100.c +++ b/drivers/gpu/drm/radeon/r100.c @@ -254,6 +254,72 @@ void r100_mc_fini(struct radeon_device *rdev) /* + * Interrupts + */ +int r100_irq_set(struct radeon_device *rdev) +{ + uint32_t tmp = 0; + + if (rdev->irq.sw_int) { + tmp |= RADEON_SW_INT_ENABLE; + } + if (rdev->irq.crtc_vblank_int[0]) { + tmp |= RADEON_CRTC_VBLANK_MASK; + } + if (rdev->irq.crtc_vblank_int[1]) { + tmp |= RADEON_CRTC2_VBLANK_MASK; + } + WREG32(RADEON_GEN_INT_CNTL, tmp); + return 0; +} + +static inline uint32_t r100_irq_ack(struct radeon_device *rdev) +{ + uint32_t irqs = RREG32(RADEON_GEN_INT_STATUS); + uint32_t irq_mask = RADEON_SW_INT_TEST | RADEON_CRTC_VBLANK_STAT | + RADEON_CRTC2_VBLANK_STAT; + + if (irqs) { + WREG32(RADEON_GEN_INT_STATUS, irqs); + } + return irqs & irq_mask; +} + +int r100_irq_process(struct radeon_device *rdev) +{ + uint32_t status; + + status = r100_irq_ack(rdev); + if (!status) { + return IRQ_NONE; + } + while (status) { + /* SW interrupt */ + if (status & RADEON_SW_INT_TEST) { + radeon_fence_process(rdev); + } + /* Vertical blank interrupts */ + if (status & RADEON_CRTC_VBLANK_STAT) { + drm_handle_vblank(rdev->ddev, 0); + } + if (status & RADEON_CRTC2_VBLANK_STAT) { + drm_handle_vblank(rdev->ddev, 1); + } + status = r100_irq_ack(rdev); + } + return IRQ_HANDLED; +} + +u32 r100_get_vblank_counter(struct radeon_device *rdev, int crtc) +{ + if (crtc == 0) + return RREG32(RADEON_CRTC_CRNT_FRAME); + else + return RREG32(RADEON_CRTC2_CRNT_FRAME); +} + + +/* * Fence emission */ void r100_fence_ring_emit(struct radeon_device *rdev, diff --git a/drivers/gpu/drm/radeon/r500_reg.h b/drivers/gpu/drm/radeon/r500_reg.h index 036691b..e1d5e03 100644 --- a/drivers/gpu/drm/radeon/r500_reg.h +++ b/drivers/gpu/drm/radeon/r500_reg.h @@ -350,6 +350,7 @@ #define AVIVO_D1CRTC_BLANK_CONTROL 0x6084 #define AVIVO_D1CRTC_INTERLACE_CONTROL 0x6088 #define AVIVO_D1CRTC_INTERLACE_STATUS 0x608c +#define AVIVO_D1CRTC_FRAME_COUNT 0x60a4 #define AVIVO_D1CRTC_STEREO_CONTROL 0x60c4 /* master controls */ @@ -438,14 +439,15 @@ # define AVIVO_DC_LB_DISP1_END_ADR_SHIFT 4 # define AVIVO_DC_LB_DISP1_END_ADR_MASK 0x7ff -#define R500_DxMODE_INT_MASK 0x6540 -#define R500_D1MODE_INT_MASK (1<<0) -#define R500_D2MODE_INT_MASK (1<<8) - #define AVIVO_D1MODE_DATA_FORMAT 0x6528 # define AVIVO_D1MODE_INTERLEAVE_EN (1 << 0) #define AVIVO_D1MODE_DESKTOP_HEIGHT 0x652C +#define AVIVO_D1MODE_VBLANK_STATUS 0x6534 +# define AVIVO_VBLANK_ACK (1 << 4) #define AVIVO_D1MODE_VLINE_START_END 0x6538 +#define AVIVO_DxMODE_INT_MASK 0x6540 +# define AVIVO_D1MODE_INT_MASK (1 << 0) +# define AVIVO_D2MODE_INT_MASK (1 << 8) #define AVIVO_D1MODE_VIEWPORT_START 0x6580 #define AVIVO_D1MODE_VIEWPORT_SIZE 0x6584 #define AVIVO_D1MODE_EXT_OVERSCAN_LEFT_RIGHT 0x6588 @@ -475,6 +477,7 @@ #define AVIVO_D2CRTC_BLANK_CONTROL 0x6884 #define AVIVO_D2CRTC_INTERLACE_CONTROL 0x6888 #define AVIVO_D2CRTC_INTERLACE_STATUS 0x688c +#define AVIVO_D2CRTC_FRAME_COUNT 0x68a4 #define AVIVO_D2CRTC_STEREO_CONTROL 0x68c4 #define AVIVO_D2GRPH_ENABLE 0x6900 @@ -497,6 +500,7 @@ #define AVIVO_D2CUR_SIZE 0x6c10 #define AVIVO_D2CUR_POSITION 0x6c14 +#define AVIVO_D2MODE_VBLANK_STATUS 0x6d34 #define AVIVO_D2MODE_VLINE_START_END 0x6d38 #define AVIVO_D2MODE_VIEWPORT_START 0x6d80 #define AVIVO_D2MODE_VIEWPORT_SIZE 0x6d84 @@ -748,4 +752,8 @@ # define AVIVO_I2C_EN (1 << 0) # define AVIVO_I2C_RESET (1 << 8) +#define AVIVO_DISP_INTERRUPT_STATUS 0x7edc +# define AVIVO_D1_VBLANK_INTERRUPT (1 << 4) +# define AVIVO_D2_VBLANK_INTERRUPT (1 << 5) + #endif diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h index b1d945b..3461127 100644 --- a/drivers/gpu/drm/radeon/radeon.h +++ b/drivers/gpu/drm/radeon/radeon.h @@ -574,6 +574,7 @@ struct radeon_asic { void (*ring_start)(struct radeon_device *rdev); int (*irq_set)(struct radeon_device *rdev); int (*irq_process)(struct radeon_device *rdev); + u32 (*get_vblank_counter)(struct radeon_device *rdev, int crtc); void (*fence_ring_emit)(struct radeon_device *rdev, struct radeon_fence *fence); int (*cs_parse)(struct radeon_cs_parser *p); int (*copy_blit)(struct radeon_device *rdev, @@ -862,6 +863,7 @@ static inline void radeon_ring_write(struct radeon_device *rdev, uint32_t v) #define radeon_ring_start(rdev) (rdev)->asic->ring_start((rdev)) #define radeon_irq_set(rdev) (rdev)->asic->irq_set((rdev)) #define radeon_irq_process(rdev) (rdev)->asic->irq_process((rdev)) +#define radeon_get_vblank_counter(rdev, crtc) (rdev)->asic->get_vblank_counter((rdev), (crtc)) #define radeon_fence_ring_emit(rdev, fence) (rdev)->asic->fence_ring_emit((rdev), (fence)) #define radeon_copy_blit(rdev, s, d, np, f) (rdev)->asic->copy_blit((rdev), (s), (d), (np), (f)) #define radeon_copy_dma(rdev, s, d, np, f) (rdev)->asic->copy_dma((rdev), (s), (d), (np), (f)) diff --git a/drivers/gpu/drm/radeon/radeon_asic.h b/drivers/gpu/drm/radeon/radeon_asic.h index c0ae2d9..7ca6c13 100644 --- a/drivers/gpu/drm/radeon/radeon_asic.h +++ b/drivers/gpu/drm/radeon/radeon_asic.h @@ -49,6 +49,7 @@ void r100_vram_info(struct radeon_device *rdev); int r100_gpu_reset(struct radeon_device *rdev); int r100_mc_init(struct radeon_device *rdev); void r100_mc_fini(struct radeon_device *rdev); +u32 r100_get_vblank_counter(struct radeon_device *rdev, int crtc); int r100_wb_init(struct radeon_device *rdev); void r100_wb_fini(struct radeon_device *rdev); int r100_gart_enable(struct radeon_device *rdev); @@ -96,6 +97,7 @@ static struct radeon_asic r100_asic = { .ring_start = &r100_ring_start, .irq_set = &r100_irq_set, .irq_process = &r100_irq_process, + .get_vblank_counter = &r100_get_vblank_counter, .fence_ring_emit = &r100_fence_ring_emit, .cs_parse = &r100_cs_parse, .copy_blit = &r100_copy_blit, @@ -156,6 +158,7 @@ static struct radeon_asic r300_asic = { .ring_start = &r300_ring_start, .irq_set = &r100_irq_set, .irq_process = &r100_irq_process, + .get_vblank_counter = &r100_get_vblank_counter, .fence_ring_emit = &r300_fence_ring_emit, .cs_parse = &r300_cs_parse, .copy_blit = &r100_copy_blit, @@ -196,6 +199,7 @@ static struct radeon_asic r420_asic = { .ring_start = &r300_ring_start, .irq_set = &r100_irq_set, .irq_process = &r100_irq_process, + .get_vblank_counter = &r100_get_vblank_counter, .fence_ring_emit = &r300_fence_ring_emit, .cs_parse = &r300_cs_parse, .copy_blit = &r100_copy_blit, @@ -243,6 +247,7 @@ static struct radeon_asic rs400_asic = { .ring_start = &r300_ring_start, .irq_set = &r100_irq_set, .irq_process = &r100_irq_process, + .get_vblank_counter = &r100_get_vblank_counter, .fence_ring_emit = &r300_fence_ring_emit, .cs_parse = &r300_cs_parse, .copy_blit = &r100_copy_blit, @@ -266,6 +271,8 @@ void rs600_vram_info(struct radeon_device *rdev); int rs600_mc_init(struct radeon_device *rdev); void rs600_mc_fini(struct radeon_device *rdev); int rs600_irq_set(struct radeon_device *rdev); +int rs600_irq_process(struct radeon_device *rdev); +u32 rs600_get_vblank_counter(struct radeon_device *rdev, int crtc); int rs600_gart_enable(struct radeon_device *rdev); void rs600_gart_disable(struct radeon_device *rdev); void rs600_gart_tlb_flush(struct radeon_device *rdev); @@ -291,7 +298,8 @@ static struct radeon_asic rs600_asic = { .cp_disable = &r100_cp_disable, .ring_start = &r300_ring_start, .irq_set = &rs600_irq_set, - .irq_process = &r100_irq_process, + .irq_process = &rs600_irq_process, + .get_vblank_counter = &rs600_get_vblank_counter, .fence_ring_emit = &r300_fence_ring_emit, .cs_parse = &r300_cs_parse, .copy_blit = &r100_copy_blit, @@ -334,7 +342,8 @@ static struct radeon_asic rs690_asic = { .cp_disable = &r100_cp_disable, .ring_start = &r300_ring_start, .irq_set = &rs600_irq_set, - .irq_process = &r100_irq_process, + .irq_process = &rs600_irq_process, + .get_vblank_counter = &rs600_get_vblank_counter, .fence_ring_emit = &r300_fence_ring_emit, .cs_parse = &r300_cs_parse, .copy_blit = &r100_copy_blit, @@ -382,8 +391,9 @@ static struct radeon_asic rv515_asic = { .cp_fini = &r100_cp_fini, .cp_disable = &r100_cp_disable, .ring_start = &rv515_ring_start, - .irq_set = &r100_irq_set, - .irq_process = &r100_irq_process, + .irq_set = &rs600_irq_set, + .irq_process = &rs600_irq_process, + .get_vblank_counter = &rs600_get_vblank_counter, .fence_ring_emit = &r300_fence_ring_emit, .cs_parse = &r300_cs_parse, .copy_blit = &r100_copy_blit, @@ -424,8 +434,9 @@ static struct radeon_asic r520_asic = { .cp_fini = &r100_cp_fini, .cp_disable = &r100_cp_disable, .ring_start = &rv515_ring_start, - .irq_set = &r100_irq_set, - .irq_process = &r100_irq_process, + .irq_set = &rs600_irq_set, + .irq_process = &rs600_irq_process, + .get_vblank_counter = &rs600_get_vblank_counter, .fence_ring_emit = &r300_fence_ring_emit, .cs_parse = &r300_cs_parse, .copy_blit = &r100_copy_blit, diff --git a/drivers/gpu/drm/radeon/radeon_irq_kms.c b/drivers/gpu/drm/radeon/radeon_irq_kms.c index 491d569..9805e4b 100644 --- a/drivers/gpu/drm/radeon/radeon_irq_kms.c +++ b/drivers/gpu/drm/radeon/radeon_irq_kms.c @@ -32,60 +32,6 @@ #include "radeon.h" #include "atom.h" -static inline uint32_t r100_irq_ack(struct radeon_device *rdev) -{ - uint32_t irqs = RREG32(RADEON_GEN_INT_STATUS); - uint32_t irq_mask = RADEON_SW_INT_TEST; - - if (irqs) { - WREG32(RADEON_GEN_INT_STATUS, irqs); - } - return irqs & irq_mask; -} - -int r100_irq_set(struct radeon_device *rdev) -{ - uint32_t tmp = 0; - - if (rdev->irq.sw_int) { - tmp |= RADEON_SW_INT_ENABLE; - } - /* Todo go through CRTC and enable vblank int or not */ - WREG32(RADEON_GEN_INT_CNTL, tmp); - return 0; -} - -int r100_irq_process(struct radeon_device *rdev) -{ - uint32_t status; - - status = r100_irq_ack(rdev); - if (!status) { - return IRQ_NONE; - } - while (status) { - /* SW interrupt */ - if (status & RADEON_SW_INT_TEST) { - radeon_fence_process(rdev); - } - status = r100_irq_ack(rdev); - } - return IRQ_HANDLED; -} - -int rs600_irq_set(struct radeon_device *rdev) -{ - uint32_t tmp = 0; - - if (rdev->irq.sw_int) { - tmp |= RADEON_SW_INT_ENABLE; - } - WREG32(RADEON_GEN_INT_CNTL, tmp); - /* Todo go through CRTC and enable vblank int or not */ - WREG32(R500_DxMODE_INT_MASK, 0); - return 0; -} - irqreturn_t radeon_driver_irq_handler_kms(DRM_IRQ_ARGS) { struct drm_device *dev = (struct drm_device *) arg; diff --git a/drivers/gpu/drm/radeon/radeon_kms.c b/drivers/gpu/drm/radeon/radeon_kms.c index 3357110..d2764bf 100644 --- a/drivers/gpu/drm/radeon/radeon_kms.c +++ b/drivers/gpu/drm/radeon/radeon_kms.c @@ -141,19 +141,42 @@ void radeon_driver_preclose_kms(struct drm_device *dev, */ u32 radeon_get_vblank_counter_kms(struct drm_device *dev, int crtc) { - /* FIXME: implement */ - return 0; + struct radeon_device *rdev = dev->dev_private; + + if (crtc < 0 || crtc > 1) { + DRM_ERROR("Invalid crtc %d\n", crtc); + return -EINVAL; + } + + return radeon_get_vblank_counter(rdev, crtc); } int radeon_enable_vblank_kms(struct drm_device *dev, int crtc) { - /* FIXME: implement */ - return 0; + struct radeon_device *rdev = dev->dev_private; + + if (crtc < 0 || crtc > 1) { + DRM_ERROR("Invalid crtc %d\n", crtc); + return -EINVAL; + } + + rdev->irq.crtc_vblank_int[crtc] = true; + + return radeon_irq_set(rdev); } void radeon_disable_vblank_kms(struct drm_device *dev, int crtc) { - /* FIXME: implement */ + struct radeon_device *rdev = dev->dev_private; + + if (crtc < 0 || crtc > 1) { + DRM_ERROR("Invalid crtc %d\n", crtc); + return; + } + + rdev->irq.crtc_vblank_int[crtc] = false; + + radeon_irq_set(rdev); } diff --git a/drivers/gpu/drm/radeon/radeon_legacy_crtc.c b/drivers/gpu/drm/radeon/radeon_legacy_crtc.c index 7d06dc9..0da72f1 100644 --- a/drivers/gpu/drm/radeon/radeon_legacy_crtc.c +++ b/drivers/gpu/drm/radeon/radeon_legacy_crtc.c @@ -310,10 +310,13 @@ void radeon_crtc_dpms(struct drm_crtc *crtc, int mode) RADEON_CRTC_DISP_REQ_EN_B)); WREG32_P(RADEON_CRTC_EXT_CNTL, 0, ~mask); } + drm_vblank_post_modeset(dev, radeon_crtc->crtc_id); + radeon_crtc_load_lut(crtc); break; case DRM_MODE_DPMS_STANDBY: case DRM_MODE_DPMS_SUSPEND: case DRM_MODE_DPMS_OFF: + drm_vblank_pre_modeset(dev, radeon_crtc->crtc_id); if (radeon_crtc->crtc_id) WREG32_P(RADEON_CRTC2_GEN_CNTL, mask, ~mask); else { @@ -323,10 +326,6 @@ void radeon_crtc_dpms(struct drm_crtc *crtc, int mode) } break; } - - if (mode != DRM_MODE_DPMS_OFF) { - radeon_crtc_load_lut(crtc); - } } /* properly set crtc bpp when using atombios */ diff --git a/drivers/gpu/drm/radeon/radeon_reg.h b/drivers/gpu/drm/radeon/radeon_reg.h index e1b6185..5a098f3 100644 --- a/drivers/gpu/drm/radeon/radeon_reg.h +++ b/drivers/gpu/drm/radeon/radeon_reg.h @@ -982,12 +982,15 @@ # define RS400_TMDS2_PLLRST (1 << 1) #define RADEON_GEN_INT_CNTL 0x0040 +# define RADEON_CRTC_VBLANK_MASK (1 << 0) +# define RADEON_CRTC2_VBLANK_MASK (1 << 9) # define RADEON_SW_INT_ENABLE (1 << 25) #define RADEON_GEN_INT_STATUS 0x0044 -# define RADEON_VSYNC_INT_AK (1 << 2) -# define RADEON_VSYNC_INT (1 << 2) -# define RADEON_VSYNC2_INT_AK (1 << 6) -# define RADEON_VSYNC2_INT (1 << 6) +# define AVIVO_DISPLAY_INT_STATUS (1 << 0) +# define RADEON_CRTC_VBLANK_STAT (1 << 0) +# define RADEON_CRTC_VBLANK_STAT_ACK (1 << 0) +# define RADEON_CRTC2_VBLANK_STAT (1 << 9) +# define RADEON_CRTC2_VBLANK_STAT_ACK (1 << 9) # define RADEON_SW_INT_FIRE (1 << 26) # define RADEON_SW_INT_TEST (1 << 25) # define RADEON_SW_INT_TEST_ACK (1 << 25) diff --git a/drivers/gpu/drm/radeon/rs600.c b/drivers/gpu/drm/radeon/rs600.c index bbea6dee..7e8ce98 100644 --- a/drivers/gpu/drm/radeon/rs600.c +++ b/drivers/gpu/drm/radeon/rs600.c @@ -240,6 +240,88 @@ void rs600_mc_fini(struct radeon_device *rdev) /* + * Interrupts + */ +int rs600_irq_set(struct radeon_device *rdev) +{ + uint32_t tmp = 0; + uint32_t mode_int = 0; + + if (rdev->irq.sw_int) { + tmp |= RADEON_SW_INT_ENABLE; + } + if (rdev->irq.crtc_vblank_int[0]) { + tmp |= AVIVO_DISPLAY_INT_STATUS; + mode_int |= AVIVO_D1MODE_INT_MASK; + } + if (rdev->irq.crtc_vblank_int[1]) { + tmp |= AVIVO_DISPLAY_INT_STATUS; + mode_int |= AVIVO_D2MODE_INT_MASK; + } + WREG32(RADEON_GEN_INT_CNTL, tmp); + WREG32(AVIVO_DxMODE_INT_MASK, mode_int); + return 0; +} + +static inline uint32_t rs600_irq_ack(struct radeon_device *rdev, u32 *r500_disp_int) +{ + uint32_t irqs = RREG32(RADEON_GEN_INT_STATUS); + uint32_t irq_mask = RADEON_SW_INT_TEST; + + if (irqs & AVIVO_DISPLAY_INT_STATUS) { + *r500_disp_int = RREG32(AVIVO_DISP_INTERRUPT_STATUS); + if (*r500_disp_int & AVIVO_D1_VBLANK_INTERRUPT) { + WREG32(AVIVO_D1MODE_VBLANK_STATUS, AVIVO_VBLANK_ACK); + } + if (*r500_disp_int & AVIVO_D2_VBLANK_INTERRUPT) { + WREG32(AVIVO_D2MODE_VBLANK_STATUS, AVIVO_VBLANK_ACK); + } + } else { + *r500_disp_int = 0; + } + + if (irqs) { + WREG32(RADEON_GEN_INT_STATUS, irqs); + } + return irqs & irq_mask; +} + +int rs600_irq_process(struct radeon_device *rdev) +{ + uint32_t status; + uint32_t r500_disp_int; + + status = rs600_irq_ack(rdev, &r500_disp_int); + if (!status && !r500_disp_int) { + return IRQ_NONE; + } + while (status || r500_disp_int) { + /* SW interrupt */ + if (status & RADEON_SW_INT_TEST) { + radeon_fence_process(rdev); + } + /* Vertical blank interrupts */ + if (r500_disp_int & AVIVO_D1_VBLANK_INTERRUPT) { + drm_handle_vblank(rdev->ddev, 0); + } + if (r500_disp_int & AVIVO_D2_VBLANK_INTERRUPT) { + drm_handle_vblank(rdev->ddev, 1); + } + status = rs600_irq_ack(rdev, &r500_disp_int); + } + return IRQ_HANDLED; +} + +u32 rs600_get_vblank_counter(struct radeon_device *rdev, int crtc) +{ + if (crtc == 0) + return RREG32(AVIVO_D1CRTC_FRAME_COUNT); + else + return RREG32(AVIVO_D2CRTC_FRAME_COUNT); +} + + +/* * Global GPU functions */ void rs600_disable_vga(struct radeon_device *rdev) -- cgit v0.10.2 From de1b28989edff519d0548ebaa3f94fd3d1524cf2 Mon Sep 17 00:00:00 2001 From: Dave Airlie Date: Wed, 12 Aug 2009 18:43:14 +1000 Subject: drm/radeon/kms: cut down indirects in register accesses. We really don't want to be doing all these indirects, updating the GPU gart table is something we do often so the less overhead the better. Signed-off-by: Dave Airlie diff --git a/drivers/gpu/drm/radeon/r100.c b/drivers/gpu/drm/radeon/r100.c index e1a6e82..90ff8e0 100644 --- a/drivers/gpu/drm/radeon/r100.c +++ b/drivers/gpu/drm/radeon/r100.c @@ -1622,26 +1622,6 @@ void r100_pll_wreg(struct radeon_device *rdev, uint32_t reg, uint32_t v) r100_pll_errata_after_data(rdev); } -uint32_t r100_mm_rreg(struct radeon_device *rdev, uint32_t reg) -{ - if (reg < 0x10000) - return readl(((void __iomem *)rdev->rmmio) + reg); - else { - writel(reg, ((void __iomem *)rdev->rmmio) + RADEON_MM_INDEX); - return readl(((void __iomem *)rdev->rmmio) + RADEON_MM_DATA); - } -} - -void r100_mm_wreg(struct radeon_device *rdev, uint32_t reg, uint32_t v) -{ - if (reg < 0x10000) - writel(v, ((void __iomem *)rdev->rmmio) + reg); - else { - writel(reg, ((void __iomem *)rdev->rmmio) + RADEON_MM_INDEX); - writel(v, ((void __iomem *)rdev->rmmio) + RADEON_MM_DATA); - } -} - int r100_init(struct radeon_device *rdev) { return 0; diff --git a/drivers/gpu/drm/radeon/r300.c b/drivers/gpu/drm/radeon/r300.c index 8594486..c47579d 100644 --- a/drivers/gpu/drm/radeon/r300.c +++ b/drivers/gpu/drm/radeon/r300.c @@ -83,8 +83,8 @@ void rv370_pcie_gart_tlb_flush(struct radeon_device *rdev) WREG32_PCIE(RADEON_PCIE_TX_GART_CNTL, tmp | RADEON_PCIE_TX_GART_INVALIDATE_TLB); (void)RREG32_PCIE(RADEON_PCIE_TX_GART_CNTL); WREG32_PCIE(RADEON_PCIE_TX_GART_CNTL, tmp); - mb(); } + mb(); } int rv370_pcie_gart_enable(struct radeon_device *rdev) @@ -593,27 +593,6 @@ void r300_vram_info(struct radeon_device *rdev) /* - * Indirect registers accessor - */ -uint32_t rv370_pcie_rreg(struct radeon_device *rdev, uint32_t reg) -{ - uint32_t r; - - WREG8(RADEON_PCIE_INDEX, ((reg) & 0xff)); - (void)RREG32(RADEON_PCIE_INDEX); - r = RREG32(RADEON_PCIE_DATA); - return r; -} - -void rv370_pcie_wreg(struct radeon_device *rdev, uint32_t reg, uint32_t v) -{ - WREG8(RADEON_PCIE_INDEX, ((reg) & 0xff)); - (void)RREG32(RADEON_PCIE_INDEX); - WREG32(RADEON_PCIE_DATA, (v)); - (void)RREG32(RADEON_PCIE_DATA); -} - -/* * PCIE Lanes */ diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h index 3461127..87170a5 100644 --- a/drivers/gpu/drm/radeon/radeon.h +++ b/drivers/gpu/drm/radeon/radeon.h @@ -667,14 +667,11 @@ struct radeon_device { resource_size_t rmmio_base; resource_size_t rmmio_size; void *rmmio; - radeon_rreg_t mm_rreg; - radeon_wreg_t mm_wreg; radeon_rreg_t mc_rreg; radeon_wreg_t mc_wreg; radeon_rreg_t pll_rreg; radeon_wreg_t pll_wreg; - radeon_rreg_t pcie_rreg; - radeon_wreg_t pcie_wreg; + uint32_t pcie_reg_mask; radeon_rreg_t pciep_rreg; radeon_wreg_t pciep_wreg; struct radeon_clock clock; @@ -706,22 +703,42 @@ int radeon_device_init(struct radeon_device *rdev, void radeon_device_fini(struct radeon_device *rdev); int radeon_gpu_wait_for_idle(struct radeon_device *rdev); +static inline uint32_t r100_mm_rreg(struct radeon_device *rdev, uint32_t reg) +{ + if (reg < 0x10000) + return readl(((void __iomem *)rdev->rmmio) + reg); + else { + writel(reg, ((void __iomem *)rdev->rmmio) + RADEON_MM_INDEX); + return readl(((void __iomem *)rdev->rmmio) + RADEON_MM_DATA); + } +} + +static inline void r100_mm_wreg(struct radeon_device *rdev, uint32_t reg, uint32_t v) +{ + if (reg < 0x10000) + writel(v, ((void __iomem *)rdev->rmmio) + reg); + else { + writel(reg, ((void __iomem *)rdev->rmmio) + RADEON_MM_INDEX); + writel(v, ((void __iomem *)rdev->rmmio) + RADEON_MM_DATA); + } +} + /* * Registers read & write functions. */ #define RREG8(reg) readb(((void __iomem *)rdev->rmmio) + (reg)) #define WREG8(reg, v) writeb(v, ((void __iomem *)rdev->rmmio) + (reg)) -#define RREG32(reg) rdev->mm_rreg(rdev, (reg)) -#define WREG32(reg, v) rdev->mm_wreg(rdev, (reg), (v)) +#define RREG32(reg) r100_mm_rreg(rdev, (reg)) +#define WREG32(reg, v) r100_mm_wreg(rdev, (reg), (v)) #define REG_SET(FIELD, v) (((v) << FIELD##_SHIFT) & FIELD##_MASK) #define REG_GET(FIELD, v) (((v) << FIELD##_SHIFT) & FIELD##_MASK) #define RREG32_PLL(reg) rdev->pll_rreg(rdev, (reg)) #define WREG32_PLL(reg, v) rdev->pll_wreg(rdev, (reg), (v)) #define RREG32_MC(reg) rdev->mc_rreg(rdev, (reg)) #define WREG32_MC(reg, v) rdev->mc_wreg(rdev, (reg), (v)) -#define RREG32_PCIE(reg) rdev->pcie_rreg(rdev, (reg)) -#define WREG32_PCIE(reg, v) rdev->pcie_wreg(rdev, (reg), (v)) +#define RREG32_PCIE(reg) rv370_pcie_rreg(rdev, (reg)) +#define WREG32_PCIE(reg, v) rv370_pcie_wreg(rdev, (reg), (v)) #define WREG32_P(reg, val, mask) \ do { \ uint32_t tmp_ = RREG32(reg); \ @@ -737,6 +754,24 @@ int radeon_gpu_wait_for_idle(struct radeon_device *rdev); WREG32_PLL(reg, tmp_); \ } while (0) +/* + * Indirect registers accessor + */ +static inline uint32_t rv370_pcie_rreg(struct radeon_device *rdev, uint32_t reg) +{ + uint32_t r; + + WREG32(RADEON_PCIE_INDEX, ((reg) & rdev->pcie_reg_mask)); + r = RREG32(RADEON_PCIE_DATA); + return r; +} + +static inline void rv370_pcie_wreg(struct radeon_device *rdev, uint32_t reg, uint32_t v) +{ + WREG32(RADEON_PCIE_INDEX, ((reg) & rdev->pcie_reg_mask)); + WREG32(RADEON_PCIE_DATA, (v)); +} + void r100_pll_errata_after_index(struct radeon_device *rdev); diff --git a/drivers/gpu/drm/radeon/radeon_device.c b/drivers/gpu/drm/radeon/radeon_device.c index 9ff6dcb..7693f7c 100644 --- a/drivers/gpu/drm/radeon/radeon_device.c +++ b/drivers/gpu/drm/radeon/radeon_device.c @@ -225,25 +225,18 @@ void radeon_invalid_wreg(struct radeon_device *rdev, uint32_t reg, uint32_t v) void radeon_register_accessor_init(struct radeon_device *rdev) { - rdev->mm_rreg = &r100_mm_rreg; - rdev->mm_wreg = &r100_mm_wreg; rdev->mc_rreg = &radeon_invalid_rreg; rdev->mc_wreg = &radeon_invalid_wreg; rdev->pll_rreg = &radeon_invalid_rreg; rdev->pll_wreg = &radeon_invalid_wreg; - rdev->pcie_rreg = &radeon_invalid_rreg; - rdev->pcie_wreg = &radeon_invalid_wreg; rdev->pciep_rreg = &radeon_invalid_rreg; rdev->pciep_wreg = &radeon_invalid_wreg; /* Don't change order as we are overridding accessor. */ if (rdev->family < CHIP_RV515) { - rdev->pcie_rreg = &rv370_pcie_rreg; - rdev->pcie_wreg = &rv370_pcie_wreg; - } - if (rdev->family >= CHIP_RV515) { - rdev->pcie_rreg = &rv515_pcie_rreg; - rdev->pcie_wreg = &rv515_pcie_wreg; + rdev->pcie_reg_mask = 0xff; + } else { + rdev->pcie_reg_mask = 0x7ff; } /* FIXME: not sure here */ if (rdev->family <= CHIP_R580) { diff --git a/drivers/gpu/drm/radeon/rv515.c b/drivers/gpu/drm/radeon/rv515.c index fd8f3ca..31a7f66 100644 --- a/drivers/gpu/drm/radeon/rv515.c +++ b/drivers/gpu/drm/radeon/rv515.c @@ -400,25 +400,6 @@ void rv515_mc_wreg(struct radeon_device *rdev, uint32_t reg, uint32_t v) WREG32(MC_IND_INDEX, 0); } -uint32_t rv515_pcie_rreg(struct radeon_device *rdev, uint32_t reg) -{ - uint32_t r; - - WREG32(PCIE_INDEX, ((reg) & 0x7ff)); - (void)RREG32(PCIE_INDEX); - r = RREG32(PCIE_DATA); - return r; -} - -void rv515_pcie_wreg(struct radeon_device *rdev, uint32_t reg, uint32_t v) -{ - WREG32(PCIE_INDEX, ((reg) & 0x7ff)); - (void)RREG32(PCIE_INDEX); - WREG32(PCIE_DATA, (v)); - (void)RREG32(PCIE_DATA); -} - - /* * Debugfs info */ -- cgit v0.10.2 From b2add73dbf93fd50f00564d7abc3e2b9aa9dd20c Mon Sep 17 00:00:00 2001 From: Guillaume Knispel Date: Sat, 15 Aug 2009 19:30:24 +0200 Subject: poll/select: initialize triggered field of struct poll_wqueues The triggered field of struct poll_wqueues introduced in commit 5f820f648c92a5ecc771a96b3c29aa6e90013bba ("poll: allow f_op->poll to sleep"). It was first set to 1 in pollwake() (now __pollwake() ), tested and later set to 0 in poll_schedule_timeout(), but not initialized before. As a result when the process needs to sleep, triggered was likely to be non-zero even if pollwake() is not called before the first poll_schedule_timeout(), meaning schedule_hrtimeout_range() would not be called and an extra loop calling all ->poll() would be done. This patch initialize triggered to 0 in poll_initwait() so the ->poll() are not called twice before the process goes to sleep when it needs to. Signed-off-by: Guillaume Knispel Acked-by: Thomas Gleixner Acked-by: Tejun Heo Cc: stable@kernel.org Signed-off-by: Linus Torvalds diff --git a/fs/select.c b/fs/select.c index d870237..8084834 100644 --- a/fs/select.c +++ b/fs/select.c @@ -110,6 +110,7 @@ void poll_initwait(struct poll_wqueues *pwq) { init_poll_funcptr(&pwq->pt, __pollwait); pwq->polling_task = current; + pwq->triggered = 0; pwq->error = 0; pwq->table = NULL; pwq->inline_index = 0; -- cgit v0.10.2 From 64c6460875957502541a4ba30835ac625a0bee79 Mon Sep 17 00:00:00 2001 From: Michael Chan Date: Fri, 14 Aug 2009 15:49:43 +0000 Subject: cnic: Fix symbol_put_addr() panic on ia64. When the cnic driver tries to grab a symbol from bnx2 when bnx2 is running init code, symbol_get() will succeed but symbol_put_addr() will hit BUG() a moment later. module_text_address() fails because bnx2 is still in init code. This is fixed by using symbol_put() instead which does the exact opposite of symbol_get(). Signed-off-by: Michael Chan Signed-off-by: David S. Miller diff --git a/drivers/net/cnic.c b/drivers/net/cnic.c index 4869d77..ecde186 100644 --- a/drivers/net/cnic.c +++ b/drivers/net/cnic.c @@ -2543,7 +2543,7 @@ static struct cnic_dev *init_bnx2_cnic(struct net_device *dev) probe = symbol_get(bnx2_cnic_probe); if (probe) { ethdev = (*probe)(dev); - symbol_put_addr(probe); + symbol_put(bnx2_cnic_probe); } if (!ethdev) return NULL; -- cgit v0.10.2 From a3059b12adae868c42629ecf058a94195ef1e958 Mon Sep 17 00:00:00 2001 From: Michael Chan Date: Fri, 14 Aug 2009 15:49:44 +0000 Subject: cnic: Refine registration with bnx2. Register and unregister with bnx2 during NETDEV_UP and NETDEV_DOWN events. This simplifies the sequence of events and allows locking fixes in the next patch. Signed-off-by: Michael Chan Reviewed-by: Benjamin Li Signed-off-by: David S. Miller diff --git a/drivers/net/cnic.c b/drivers/net/cnic.c index ecde186..2db81f0 100644 --- a/drivers/net/cnic.c +++ b/drivers/net/cnic.c @@ -2393,21 +2393,45 @@ static int cnic_start_bnx2_hw(struct cnic_dev *dev) return 0; } -static int cnic_start_hw(struct cnic_dev *dev) +static int cnic_register_netdev(struct cnic_dev *dev) { struct cnic_local *cp = dev->cnic_priv; struct cnic_eth_dev *ethdev = cp->ethdev; int err; - if (test_bit(CNIC_F_CNIC_UP, &dev->flags)) - return -EALREADY; + if (!ethdev) + return -ENODEV; + + if (ethdev->drv_state & CNIC_DRV_STATE_REGD) + return 0; err = ethdev->drv_register_cnic(dev->netdev, cp->cnic_ops, dev); - if (err) { + if (err) printk(KERN_ERR PFX "%s: register_cnic failed\n", dev->netdev->name); - goto err2; - } + + return err; +} + +static void cnic_unregister_netdev(struct cnic_dev *dev) +{ + struct cnic_local *cp = dev->cnic_priv; + struct cnic_eth_dev *ethdev = cp->ethdev; + + if (!ethdev) + return; + + ethdev->drv_unregister_cnic(dev->netdev); +} + +static int cnic_start_hw(struct cnic_dev *dev) +{ + struct cnic_local *cp = dev->cnic_priv; + struct cnic_eth_dev *ethdev = cp->ethdev; + int err; + + if (test_bit(CNIC_F_CNIC_UP, &dev->flags)) + return -EALREADY; dev->regview = ethdev->io_base; cp->chip_id = ethdev->chip_id; @@ -2438,18 +2462,13 @@ static int cnic_start_hw(struct cnic_dev *dev) return 0; err1: - ethdev->drv_unregister_cnic(dev->netdev); cp->free_resc(dev); pci_dev_put(dev->pcidev); -err2: return err; } static void cnic_stop_bnx2_hw(struct cnic_dev *dev) { - struct cnic_local *cp = dev->cnic_priv; - struct cnic_eth_dev *ethdev = cp->ethdev; - cnic_disable_bnx2_int_sync(dev); cnic_reg_wr_ind(dev, BNX2_CP_SCRATCH + 0x20, 0); @@ -2461,8 +2480,6 @@ static void cnic_stop_bnx2_hw(struct cnic_dev *dev) cnic_setup_5709_context(dev, 0); cnic_free_irq(dev); - ethdev->drv_unregister_cnic(dev->netdev); - cnic_free_resc(dev); } @@ -2646,6 +2663,10 @@ static int cnic_netdev_event(struct notifier_block *this, unsigned long event, else if (event == NETDEV_UNREGISTER) cnic_ulp_exit(dev); else if (event == NETDEV_UP) { + if (cnic_register_netdev(dev) != 0) { + cnic_put(dev); + goto done; + } mutex_lock(&cnic_lock); if (!cnic_start_hw(dev)) cnic_ulp_start(dev); @@ -2672,6 +2693,7 @@ static int cnic_netdev_event(struct notifier_block *this, unsigned long event, cnic_ulp_stop(dev); cnic_stop_hw(dev); mutex_unlock(&cnic_lock); + cnic_unregister_netdev(dev); } else if (event == NETDEV_UNREGISTER) { write_lock(&cnic_dev_lock); list_del_init(&dev->list); @@ -2703,6 +2725,7 @@ static void cnic_release(void) } cnic_ulp_exit(dev); + cnic_unregister_netdev(dev); list_del_init(&dev->list); cnic_free_dev(dev); } -- cgit v0.10.2 From c5a889508203446c1abc1d670599b3a816841813 Mon Sep 17 00:00:00 2001 From: Michael Chan Date: Fri, 14 Aug 2009 15:49:45 +0000 Subject: bnx2: Use mutex on slow path cnic calls. The slow path calls to the cnic driver are sleepable calls so we cannot use rcu_read_lock(). Use mutex for these slow path calls instead. Signed-off-by: Michael Chan Reviewed-by: Benjamin Li Signed-off-by: David S. Miller diff --git a/drivers/net/bnx2.c b/drivers/net/bnx2.c index b70cc99..06b9011 100644 --- a/drivers/net/bnx2.c +++ b/drivers/net/bnx2.c @@ -399,9 +399,11 @@ static int bnx2_unregister_cnic(struct net_device *dev) struct bnx2_napi *bnapi = &bp->bnx2_napi[0]; struct cnic_eth_dev *cp = &bp->cnic_eth_dev; + mutex_lock(&bp->cnic_lock); cp->drv_state = 0; bnapi->cnic_present = 0; rcu_assign_pointer(bp->cnic_ops, NULL); + mutex_unlock(&bp->cnic_lock); synchronize_rcu(); return 0; } @@ -429,13 +431,13 @@ bnx2_cnic_stop(struct bnx2 *bp) struct cnic_ops *c_ops; struct cnic_ctl_info info; - rcu_read_lock(); - c_ops = rcu_dereference(bp->cnic_ops); + mutex_lock(&bp->cnic_lock); + c_ops = bp->cnic_ops; if (c_ops) { info.cmd = CNIC_CTL_STOP_CMD; c_ops->cnic_ctl(bp->cnic_data, &info); } - rcu_read_unlock(); + mutex_unlock(&bp->cnic_lock); } static void @@ -444,8 +446,8 @@ bnx2_cnic_start(struct bnx2 *bp) struct cnic_ops *c_ops; struct cnic_ctl_info info; - rcu_read_lock(); - c_ops = rcu_dereference(bp->cnic_ops); + mutex_lock(&bp->cnic_lock); + c_ops = bp->cnic_ops; if (c_ops) { if (!(bp->flags & BNX2_FLAG_USING_MSIX)) { struct bnx2_napi *bnapi = &bp->bnx2_napi[0]; @@ -455,7 +457,7 @@ bnx2_cnic_start(struct bnx2 *bp) info.cmd = CNIC_CTL_START_CMD; c_ops->cnic_ctl(bp->cnic_data, &info); } - rcu_read_unlock(); + mutex_unlock(&bp->cnic_lock); } #else @@ -7663,6 +7665,9 @@ bnx2_init_board(struct pci_dev *pdev, struct net_device *dev) spin_lock_init(&bp->phy_lock); spin_lock_init(&bp->indirect_lock); +#ifdef BCM_CNIC + mutex_init(&bp->cnic_lock); +#endif INIT_WORK(&bp->reset_task, bnx2_reset_task); dev->base_addr = dev->mem_start = pci_resource_start(pdev, 0); diff --git a/drivers/net/bnx2.h b/drivers/net/bnx2.h index f1edfaa..a4f12fd 100644 --- a/drivers/net/bnx2.h +++ b/drivers/net/bnx2.h @@ -6902,6 +6902,7 @@ struct bnx2 { u32 idle_chk_status_idx; #ifdef BCM_CNIC + struct mutex cnic_lock; struct cnic_eth_dev cnic_eth_dev; #endif -- cgit v0.10.2 From 681dbd710779e8b8d5bae926f6b11f30df70638b Mon Sep 17 00:00:00 2001 From: Michael Chan Date: Fri, 14 Aug 2009 15:49:46 +0000 Subject: cnic: Fix locking in start/stop calls. The slow path ulp_start and ulp_stop calls to the bnx2i driver are sleepable calls and therefore should not be protected using rcu_read_lock. Fix it by using mutex and setting a bit during these calls. cnic_unregister_device() will now wait for the bit to clear before completing the call. Signed-off-by: Michael Chan Reviewed-by: Benjamin Li Signed-off-by: David S. Miller diff --git a/drivers/net/cnic.c b/drivers/net/cnic.c index 2db81f0..4ff618a 100644 --- a/drivers/net/cnic.c +++ b/drivers/net/cnic.c @@ -466,6 +466,7 @@ EXPORT_SYMBOL(cnic_register_driver); static int cnic_unregister_device(struct cnic_dev *dev, int ulp_type) { struct cnic_local *cp = dev->cnic_priv; + int i = 0; if (ulp_type >= MAX_CNIC_ULP_TYPE) { printk(KERN_ERR PFX "cnic_unregister_device: Bad type %d\n", @@ -486,6 +487,15 @@ static int cnic_unregister_device(struct cnic_dev *dev, int ulp_type) synchronize_rcu(); + while (test_bit(ULP_F_CALL_PENDING, &cp->ulp_flags[ulp_type]) && + i < 20) { + msleep(100); + i++; + } + if (test_bit(ULP_F_CALL_PENDING, &cp->ulp_flags[ulp_type])) + printk(KERN_WARNING PFX "%s: Failed waiting for ULP up call" + " to complete.\n", dev->netdev->name); + return 0; } EXPORT_SYMBOL(cnic_unregister_driver); @@ -1076,18 +1086,23 @@ static void cnic_ulp_stop(struct cnic_dev *dev) if (cp->cnic_uinfo) cnic_send_nlmsg(cp, ISCSI_KEVENT_IF_DOWN, NULL); - rcu_read_lock(); for (if_type = 0; if_type < MAX_CNIC_ULP_TYPE; if_type++) { struct cnic_ulp_ops *ulp_ops; - ulp_ops = rcu_dereference(cp->ulp_ops[if_type]); - if (!ulp_ops) + mutex_lock(&cnic_lock); + ulp_ops = cp->ulp_ops[if_type]; + if (!ulp_ops) { + mutex_unlock(&cnic_lock); continue; + } + set_bit(ULP_F_CALL_PENDING, &cp->ulp_flags[if_type]); + mutex_unlock(&cnic_lock); if (test_and_clear_bit(ULP_F_START, &cp->ulp_flags[if_type])) ulp_ops->cnic_stop(cp->ulp_handle[if_type]); + + clear_bit(ULP_F_CALL_PENDING, &cp->ulp_flags[if_type]); } - rcu_read_unlock(); } static void cnic_ulp_start(struct cnic_dev *dev) @@ -1095,18 +1110,23 @@ static void cnic_ulp_start(struct cnic_dev *dev) struct cnic_local *cp = dev->cnic_priv; int if_type; - rcu_read_lock(); for (if_type = 0; if_type < MAX_CNIC_ULP_TYPE; if_type++) { struct cnic_ulp_ops *ulp_ops; - ulp_ops = rcu_dereference(cp->ulp_ops[if_type]); - if (!ulp_ops || !ulp_ops->cnic_start) + mutex_lock(&cnic_lock); + ulp_ops = cp->ulp_ops[if_type]; + if (!ulp_ops || !ulp_ops->cnic_start) { + mutex_unlock(&cnic_lock); continue; + } + set_bit(ULP_F_CALL_PENDING, &cp->ulp_flags[if_type]); + mutex_unlock(&cnic_lock); if (!test_and_set_bit(ULP_F_START, &cp->ulp_flags[if_type])) ulp_ops->cnic_start(cp->ulp_handle[if_type]); + + clear_bit(ULP_F_CALL_PENDING, &cp->ulp_flags[if_type]); } - rcu_read_unlock(); } static int cnic_ctl(void *data, struct cnic_ctl_info *info) @@ -1116,22 +1136,18 @@ static int cnic_ctl(void *data, struct cnic_ctl_info *info) switch (info->cmd) { case CNIC_CTL_STOP_CMD: cnic_hold(dev); - mutex_lock(&cnic_lock); cnic_ulp_stop(dev); cnic_stop_hw(dev); - mutex_unlock(&cnic_lock); cnic_put(dev); break; case CNIC_CTL_START_CMD: cnic_hold(dev); - mutex_lock(&cnic_lock); if (!cnic_start_hw(dev)) cnic_ulp_start(dev); - mutex_unlock(&cnic_lock); cnic_put(dev); break; default: @@ -2667,10 +2683,8 @@ static int cnic_netdev_event(struct notifier_block *this, unsigned long event, cnic_put(dev); goto done; } - mutex_lock(&cnic_lock); if (!cnic_start_hw(dev)) cnic_ulp_start(dev); - mutex_unlock(&cnic_lock); } rcu_read_lock(); @@ -2689,10 +2703,8 @@ static int cnic_netdev_event(struct notifier_block *this, unsigned long event, rcu_read_unlock(); if (event == NETDEV_GOING_DOWN) { - mutex_lock(&cnic_lock); cnic_ulp_stop(dev); cnic_stop_hw(dev); - mutex_unlock(&cnic_lock); cnic_unregister_netdev(dev); } else if (event == NETDEV_UNREGISTER) { write_lock(&cnic_dev_lock); diff --git a/drivers/net/cnic.h b/drivers/net/cnic.h index 5192d4a..a94b302 100644 --- a/drivers/net/cnic.h +++ b/drivers/net/cnic.h @@ -176,6 +176,7 @@ struct cnic_local { unsigned long ulp_flags[MAX_CNIC_ULP_TYPE]; #define ULP_F_INIT 0 #define ULP_F_START 1 +#define ULP_F_CALL_PENDING 2 struct cnic_ulp_ops *ulp_ops[MAX_CNIC_ULP_TYPE]; /* protected by ulp_lock */ -- cgit v0.10.2 From 7fc1ece40704b150477e548a7a98d285cc418790 Mon Sep 17 00:00:00 2001 From: Michael Chan Date: Fri, 14 Aug 2009 15:49:47 +0000 Subject: cnic: Fix locking in init/exit calls. The slow path ulp_init and ulp_exit calls to the bnx2i driver are sleepable calls and therefore should not be protected using rcu_read_lock. Fix it by using mutex and refcount during these calls. cnic_unregister_driver() will now wait for the refcount to go to zero before completing the call. Signed-off-by: Michael Chan Reviewed-by: Benjamin Li Signed-off-by: David S. Miller diff --git a/drivers/net/cnic.c b/drivers/net/cnic.c index 4ff618a..74c3429 100644 --- a/drivers/net/cnic.c +++ b/drivers/net/cnic.c @@ -138,6 +138,16 @@ static struct cnic_dev *cnic_from_netdev(struct net_device *netdev) return NULL; } +static inline void ulp_get(struct cnic_ulp_ops *ulp_ops) +{ + atomic_inc(&ulp_ops->ref_count); +} + +static inline void ulp_put(struct cnic_ulp_ops *ulp_ops) +{ + atomic_dec(&ulp_ops->ref_count); +} + static void cnic_ctx_wr(struct cnic_dev *dev, u32 cid_addr, u32 off, u32 val) { struct cnic_local *cp = dev->cnic_priv; @@ -358,6 +368,7 @@ int cnic_register_driver(int ulp_type, struct cnic_ulp_ops *ulp_ops) } read_unlock(&cnic_dev_lock); + atomic_set(&ulp_ops->ref_count, 0); rcu_assign_pointer(cnic_ulp_tbl[ulp_type], ulp_ops); mutex_unlock(&cnic_lock); @@ -379,6 +390,8 @@ int cnic_register_driver(int ulp_type, struct cnic_ulp_ops *ulp_ops) int cnic_unregister_driver(int ulp_type) { struct cnic_dev *dev; + struct cnic_ulp_ops *ulp_ops; + int i = 0; if (ulp_type >= MAX_CNIC_ULP_TYPE) { printk(KERN_ERR PFX "cnic_unregister_driver: Bad type %d\n", @@ -386,7 +399,8 @@ int cnic_unregister_driver(int ulp_type) return -EINVAL; } mutex_lock(&cnic_lock); - if (!cnic_ulp_tbl[ulp_type]) { + ulp_ops = cnic_ulp_tbl[ulp_type]; + if (!ulp_ops) { printk(KERN_ERR PFX "cnic_unregister_driver: Type %d has not " "been registered\n", ulp_type); goto out_unlock; @@ -411,6 +425,14 @@ int cnic_unregister_driver(int ulp_type) mutex_unlock(&cnic_lock); synchronize_rcu(); + while ((atomic_read(&ulp_ops->ref_count) != 0) && (i < 20)) { + msleep(100); + i++; + } + + if (atomic_read(&ulp_ops->ref_count) != 0) + printk(KERN_WARNING PFX "%s: Failed waiting for ref count to go" + " to zero.\n", dev->netdev->name); return 0; out_unlock: @@ -1161,19 +1183,23 @@ static void cnic_ulp_init(struct cnic_dev *dev) int i; struct cnic_local *cp = dev->cnic_priv; - rcu_read_lock(); for (i = 0; i < MAX_CNIC_ULP_TYPE_EXT; i++) { struct cnic_ulp_ops *ulp_ops; - ulp_ops = rcu_dereference(cnic_ulp_tbl[i]); - if (!ulp_ops || !ulp_ops->cnic_init) + mutex_lock(&cnic_lock); + ulp_ops = cnic_ulp_tbl[i]; + if (!ulp_ops || !ulp_ops->cnic_init) { + mutex_unlock(&cnic_lock); continue; + } + ulp_get(ulp_ops); + mutex_unlock(&cnic_lock); if (!test_and_set_bit(ULP_F_INIT, &cp->ulp_flags[i])) ulp_ops->cnic_init(dev); + ulp_put(ulp_ops); } - rcu_read_unlock(); } static void cnic_ulp_exit(struct cnic_dev *dev) @@ -1181,19 +1207,23 @@ static void cnic_ulp_exit(struct cnic_dev *dev) int i; struct cnic_local *cp = dev->cnic_priv; - rcu_read_lock(); for (i = 0; i < MAX_CNIC_ULP_TYPE_EXT; i++) { struct cnic_ulp_ops *ulp_ops; - ulp_ops = rcu_dereference(cnic_ulp_tbl[i]); - if (!ulp_ops || !ulp_ops->cnic_exit) + mutex_lock(&cnic_lock); + ulp_ops = cnic_ulp_tbl[i]; + if (!ulp_ops || !ulp_ops->cnic_exit) { + mutex_unlock(&cnic_lock); continue; + } + ulp_get(ulp_ops); + mutex_unlock(&cnic_lock); if (test_and_clear_bit(ULP_F_INIT, &cp->ulp_flags[i])) ulp_ops->cnic_exit(dev); + ulp_put(ulp_ops); } - rcu_read_unlock(); } static int cnic_cm_offload_pg(struct cnic_sock *csk) diff --git a/drivers/net/cnic_if.h b/drivers/net/cnic_if.h index d1bce27..a492357 100644 --- a/drivers/net/cnic_if.h +++ b/drivers/net/cnic_if.h @@ -290,6 +290,7 @@ struct cnic_ulp_ops { void (*iscsi_nl_send_msg)(struct cnic_dev *dev, u32 msg_type, char *data, u16 data_size); struct module *owner; + atomic_t ref_count; }; extern int cnic_register_driver(int ulp_type, struct cnic_ulp_ops *ulp_ops); -- cgit v0.10.2 From 82776a4bcd7aa5fbcd2e6339b3ce88b727dd40ab Mon Sep 17 00:00:00 2001 From: Bruce Allan Date: Fri, 14 Aug 2009 14:35:33 +0000 Subject: e1000e: WoL does not work on 82577/82578 with manageability enabled With manageability (Intel AMT) enabled via BIOS, PHY wakeup does not get configured on newer parts which use PHY wakeup vs. MAC wakeup which causes WoL to not work. The driver should configure PHY wakeup whether or not manageability is enabled. Signed-off-by: Bruce Allan Signed-off-by: Jeff Kirsher Signed-off-by: David S. Miller diff --git a/drivers/net/e1000e/netdev.c b/drivers/net/e1000e/netdev.c index 63415bb..58e22fc 100644 --- a/drivers/net/e1000e/netdev.c +++ b/drivers/net/e1000e/netdev.c @@ -4538,8 +4538,7 @@ static int __e1000_shutdown(struct pci_dev *pdev, bool *enable_wake) /* Allow time for pending master requests to run */ e1000e_disable_pcie_master(&adapter->hw); - if ((adapter->flags2 & FLAG2_HAS_PHY_WAKEUP) && - !(hw->mac.ops.check_mng_mode(hw))) { + if (adapter->flags2 & FLAG2_HAS_PHY_WAKEUP) { /* enable wakeup by the PHY */ retval = e1000_init_phy_wakeup(adapter, wufc); if (retval) @@ -4557,7 +4556,8 @@ static int __e1000_shutdown(struct pci_dev *pdev, bool *enable_wake) *enable_wake = !!wufc; /* make sure adapter isn't asleep if manageability is enabled */ - if (adapter->flags & FLAG_MNG_PT_ENABLED) + if ((adapter->flags & FLAG_MNG_PT_ENABLED) || + (hw->mac.ops.check_mng_mode(hw))) *enable_wake = true; if (adapter->hw.phy.type == e1000_phy_igp_3) -- cgit v0.10.2 From 68eac4602b9104cdaa6c18b3edd914cececa6a1e Mon Sep 17 00:00:00 2001 From: Xiaotian Feng Date: Fri, 14 Aug 2009 14:35:52 +0000 Subject: e1000e: fix use of pci_enable_pcie_error_reporting commit 111b9dc5 ("e1000e: add aer support") introduces pcie aer support for e1000e, but it is not reasonable to disable it in e1000_remove but enable it in e1000_resume. This patch enables aer support in e1000_probe. Signed-off-by: Xiaotian Feng Signed-off-by: Jeff Kirsher Signed-off-by: David S. Miller diff --git a/drivers/net/e1000e/netdev.c b/drivers/net/e1000e/netdev.c index 58e22fc..fa92a68 100644 --- a/drivers/net/e1000e/netdev.c +++ b/drivers/net/e1000e/netdev.c @@ -4670,14 +4670,6 @@ static int e1000_resume(struct pci_dev *pdev) return err; } - /* AER (Advanced Error Reporting) hooks */ - err = pci_enable_pcie_error_reporting(pdev); - if (err) { - dev_err(&pdev->dev, "pci_enable_pcie_error_reporting failed " - "0x%x\n", err); - /* non-fatal, continue */ - } - pci_set_master(pdev); pci_enable_wake(pdev, PCI_D3hot, 0); @@ -4990,6 +4982,14 @@ static int __devinit e1000_probe(struct pci_dev *pdev, if (err) goto err_pci_reg; + /* AER (Advanced Error Reporting) hooks */ + err = pci_enable_pcie_error_reporting(pdev); + if (err) { + dev_err(&pdev->dev, "pci_enable_pcie_error_reporting failed " + "0x%x\n", err); + /* non-fatal, continue */ + } + pci_set_master(pdev); /* PCI config space info */ err = pci_save_state(pdev); -- cgit v0.10.2 From 4e5c25d405e18a2f279ca2bfc855508ec3a0186b Mon Sep 17 00:00:00 2001 From: Hugh Dickins Date: Sun, 16 Aug 2009 15:54:37 +0100 Subject: x86, mce: therm_throt: Don't log redundant normality 0d01f31439c1e4d602bf9fdc924ab66f407f5e38 "x86, mce: therm_throt - change when we print messages" removed redundant announcements of "Temperature/speed normal". They're not worth logging and remove their accompanying "Machine check events logged" messages as well from the console. Signed-off-by: Hugh Dickins Cc: Hidetoshi Seto Cc: Andi Kleen Cc: Dmitry Torokhov LKML-Reference: Signed-off-by: Ingo Molnar diff --git a/arch/x86/kernel/cpu/mcheck/therm_throt.c b/arch/x86/kernel/cpu/mcheck/therm_throt.c index 8bc64cf..5957a93 100644 --- a/arch/x86/kernel/cpu/mcheck/therm_throt.c +++ b/arch/x86/kernel/cpu/mcheck/therm_throt.c @@ -116,11 +116,14 @@ static int therm_throt_process(int curr) cpu, __get_cpu_var(thermal_throttle_count)); add_taint(TAINT_MACHINE_CHECK); - } else if (was_throttled) { + return 1; + } + if (was_throttled) { printk(KERN_INFO "CPU%d: Temperature/speed normal\n", cpu); + return 1; } - return 1; + return 0; } #ifdef CONFIG_SYSFS -- cgit v0.10.2 From 894ef820b10d77e2d6d717342fc408bdd9825139 Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Sun, 16 Aug 2009 07:33:30 -0700 Subject: dm-log-userspace: fix printk format warning drivers/md/dm-log-userspace-transfer.c:110: warning: format '%lu' expects type 'long unsigned int', but argument 4 has type 'size_t' Previously posted and acked, but apparently lost. http://lkml.indiana.edu/hypermail/linux/kernel/0906.2/02074.html Signed-off-by: Randy Dunlap Cc: dm-devel@redhat.com Signed-off-by: Linus Torvalds diff --git a/drivers/md/dm-log-userspace-transfer.c b/drivers/md/dm-log-userspace-transfer.c index 0ca1ee7..8ce74d9 100644 --- a/drivers/md/dm-log-userspace-transfer.c +++ b/drivers/md/dm-log-userspace-transfer.c @@ -108,7 +108,7 @@ static int fill_pkg(struct cn_msg *msg, struct dm_ulog_request *tfr) *(pkg->data_size) = 0; } else if (tfr->data_size > *(pkg->data_size)) { DMERR("Insufficient space to receive package [%u] " - "(%u vs %lu)", tfr->request_type, + "(%u vs %zu)", tfr->request_type, tfr->data_size, *(pkg->data_size)); *(pkg->data_size) = 0; -- cgit v0.10.2 From 52459ab91363343af8ae252766e9da762344a2e7 Mon Sep 17 00:00:00 2001 From: Leonardo Potenza Date: Sun, 16 Aug 2009 18:55:48 +0200 Subject: x86: Annotate section mismatch warnings in kernel/apic/x2apic_uv_x.c The function uv_acpi_madt_oem_check() has been marked __init, the struct apic_x2apic_uv_x has been marked __refdata. The aim is to address the following section mismatch messages: WARNING: arch/x86/kernel/apic/built-in.o(.data+0x1368): Section mismatch in reference from the variable apic_x2apic_uv_x to the function .cpuinit.text:uv_wakeup_secondary() The variable apic_x2apic_uv_x references the function __cpuinit uv_wakeup_secondary() If the reference is valid then annotate the variable with __init* or __refdata (see linux/init.h) or name the variable: *driver, *_template, *_timer, *_sht, *_ops, *_probe, *_probe_one, *_console, WARNING: arch/x86/kernel/built-in.o(.data+0x68e8): Section mismatch in reference from the variable apic_x2apic_uv_x to the function .cpuinit.text:uv_wakeup_secondary() The variable apic_x2apic_uv_x references the function __cpuinit uv_wakeup_secondary() If the reference is valid then annotate the variable with __init* or __refdata (see linux/init.h) or name the variable: *driver, *_template, *_timer, *_sht, *_ops, *_probe, *_probe_one, *_console, WARNING: arch/x86/built-in.o(.text+0x7b36f): Section mismatch in reference from the function uv_acpi_madt_oem_check() to the function .init.text:early_ioremap() The function uv_acpi_madt_oem_check() references the function __init early_ioremap(). This is often because uv_acpi_madt_oem_check lacks a __init annotation or the annotation of early_ioremap is wrong. WARNING: arch/x86/built-in.o(.text+0x7b38d): Section mismatch in reference from the function uv_acpi_madt_oem_check() to the function .init.text:early_iounmap() The function uv_acpi_madt_oem_check() references the function __init early_iounmap(). This is often because uv_acpi_madt_oem_check lacks a __init annotation or the annotation of early_iounmap is wrong. WARNING: arch/x86/built-in.o(.data+0x8668): Section mismatch in reference from the variable apic_x2apic_uv_x to the function .cpuinit.text:uv_wakeup_secondary() The variable apic_x2apic_uv_x references the function __cpuinit uv_wakeup_secondary() If the reference is valid then annotate the variable with __init* or __refdata (see linux/init.h) or name the variable: *driver, *_template, *_timer, *_sht, *_ops, *_probe, *_probe_one, *_console, Signed-off-by: Leonardo Potenza LKML-Reference: <200908161855.48302.lpotenza@inwind.it> Signed-off-by: Ingo Molnar diff --git a/arch/x86/kernel/apic/x2apic_uv_x.c b/arch/x86/kernel/apic/x2apic_uv_x.c index 832e908..6011593 100644 --- a/arch/x86/kernel/apic/x2apic_uv_x.c +++ b/arch/x86/kernel/apic/x2apic_uv_x.c @@ -46,7 +46,7 @@ static int early_get_nodeid(void) return node_id.s.node_id; } -static int uv_acpi_madt_oem_check(char *oem_id, char *oem_table_id) +static int __init uv_acpi_madt_oem_check(char *oem_id, char *oem_table_id) { if (!strcmp(oem_id, "SGI")) { if (!strcmp(oem_table_id, "UVL")) @@ -253,7 +253,7 @@ static void uv_send_IPI_self(int vector) apic_write(APIC_SELF_IPI, vector); } -struct apic apic_x2apic_uv_x = { +struct apic __refdata apic_x2apic_uv_x = { .name = "UV large system", .probe = NULL, -- cgit v0.10.2 From cefb87efc9aa0288849149484870d5ab989fbd59 Mon Sep 17 00:00:00 2001 From: Dave Airlie Date: Sun, 16 Aug 2009 21:05:45 +1000 Subject: drm/radeon/kms: implement bo busy check + current domain This implements the busy ioctl along with a current domain check. returns 0 or -EBUSY puts the current domain no matter what the answer. Signed-off-by: Dave Airlie diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h index 87170a5..79ad982 100644 --- a/drivers/gpu/drm/radeon/radeon.h +++ b/drivers/gpu/drm/radeon/radeon.h @@ -242,6 +242,7 @@ int radeon_object_pin(struct radeon_object *robj, uint32_t domain, uint64_t *gpu_addr); void radeon_object_unpin(struct radeon_object *robj); int radeon_object_wait(struct radeon_object *robj); +int radeon_object_busy_domain(struct radeon_object *robj, uint32_t *cur_placement); int radeon_object_evict_vram(struct radeon_device *rdev); int radeon_object_mmap(struct radeon_object *robj, uint64_t *offset); void radeon_object_force_delete(struct radeon_device *rdev); diff --git a/drivers/gpu/drm/radeon/radeon_gem.c b/drivers/gpu/drm/radeon/radeon_gem.c index cded518..d4ceff1 100644 --- a/drivers/gpu/drm/radeon/radeon_gem.c +++ b/drivers/gpu/drm/radeon/radeon_gem.c @@ -262,7 +262,27 @@ int radeon_gem_mmap_ioctl(struct drm_device *dev, void *data, int radeon_gem_busy_ioctl(struct drm_device *dev, void *data, struct drm_file *filp) { - /* FIXME: implement */ + struct drm_radeon_gem_busy *args = data; + struct drm_gem_object *gobj; + struct radeon_object *robj; + int r; + uint32_t cur_placement; + + gobj = drm_gem_object_lookup(dev, filp, args->handle); + if (gobj == NULL) { + return -EINVAL; + } + robj = gobj->driver_private; + r = radeon_object_busy_domain(robj, &cur_placement); + if (cur_placement == TTM_PL_VRAM) + args->domain = RADEON_GEM_DOMAIN_VRAM; + if (cur_placement == TTM_PL_FLAG_TT) + args->domain = RADEON_GEM_DOMAIN_GTT; + if (cur_placement == TTM_PL_FLAG_SYSTEM) + args->domain = RADEON_GEM_DOMAIN_CPU; + mutex_lock(&dev->struct_mutex); + drm_gem_object_unreference(gobj); + mutex_unlock(&dev->struct_mutex); return 0; } diff --git a/drivers/gpu/drm/radeon/radeon_object.c b/drivers/gpu/drm/radeon/radeon_object.c index e98cae3..b85fb83 100644 --- a/drivers/gpu/drm/radeon/radeon_object.c +++ b/drivers/gpu/drm/radeon/radeon_object.c @@ -316,6 +316,25 @@ int radeon_object_wait(struct radeon_object *robj) return r; } +int radeon_object_busy_domain(struct radeon_object *robj, uint32_t *cur_placement) +{ + int r = 0; + + r = radeon_object_reserve(robj, true); + if (unlikely(r != 0)) { + DRM_ERROR("radeon: failed to reserve object for waiting.\n"); + return r; + } + spin_lock(&robj->tobj.lock); + *cur_placement = robj->tobj.mem.mem_type; + if (robj->tobj.sync_obj) { + r = ttm_bo_wait(&robj->tobj, true, true, true); + } + spin_unlock(&robj->tobj.lock); + radeon_object_unreserve(robj); + return r; +} + int radeon_object_evict_vram(struct radeon_device *rdev) { if (rdev->flags & RADEON_IS_IGP) { diff --git a/include/drm/radeon_drm.h b/include/drm/radeon_drm.h index af4b482..f81c323 100644 --- a/include/drm/radeon_drm.h +++ b/include/drm/radeon_drm.h @@ -838,7 +838,7 @@ struct drm_radeon_gem_wait_idle { struct drm_radeon_gem_busy { uint32_t handle; - uint32_t busy; + uint32_t domain; }; struct drm_radeon_gem_pread { -- cgit v0.10.2 From 9c0d90103c7e0eb6e638e5b649e9f6d8d9c1b4b3 Mon Sep 17 00:00:00 2001 From: Eric Paris Date: Fri, 31 Jul 2009 12:53:58 -0400 Subject: Capabilities: move cap_file_mmap to commoncap.c Currently we duplicate the mmap_min_addr test in cap_file_mmap and in security_file_mmap if !CONFIG_SECURITY. This patch moves cap_file_mmap into commoncap.c and then calls that function directly from security_file_mmap ifndef CONFIG_SECURITY like all of the other capability checks are done. Signed-off-by: Eric Paris Acked-by: Serge Hallyn Signed-off-by: James Morris diff --git a/include/linux/security.h b/include/linux/security.h index 5eff459..ac4bc37 100644 --- a/include/linux/security.h +++ b/include/linux/security.h @@ -66,6 +66,9 @@ extern int cap_inode_setxattr(struct dentry *dentry, const char *name, extern int cap_inode_removexattr(struct dentry *dentry, const char *name); extern int cap_inode_need_killpriv(struct dentry *dentry); extern int cap_inode_killpriv(struct dentry *dentry); +extern int cap_file_mmap(struct file *file, unsigned long reqprot, + unsigned long prot, unsigned long flags, + unsigned long addr, unsigned long addr_only); extern int cap_task_fix_setuid(struct cred *new, const struct cred *old, int flags); extern int cap_task_prctl(int option, unsigned long arg2, unsigned long arg3, unsigned long arg4, unsigned long arg5); @@ -2197,9 +2200,7 @@ static inline int security_file_mmap(struct file *file, unsigned long reqprot, unsigned long addr, unsigned long addr_only) { - if ((addr < mmap_min_addr) && !capable(CAP_SYS_RAWIO)) - return -EACCES; - return 0; + return cap_file_mmap(file, reqprot, prot, flags, addr, addr_only); } static inline int security_file_mprotect(struct vm_area_struct *vma, diff --git a/security/capability.c b/security/capability.c index 21b6cea..88f752e 100644 --- a/security/capability.c +++ b/security/capability.c @@ -330,15 +330,6 @@ static int cap_file_ioctl(struct file *file, unsigned int command, return 0; } -static int cap_file_mmap(struct file *file, unsigned long reqprot, - unsigned long prot, unsigned long flags, - unsigned long addr, unsigned long addr_only) -{ - if ((addr < mmap_min_addr) && !capable(CAP_SYS_RAWIO)) - return -EACCES; - return 0; -} - static int cap_file_mprotect(struct vm_area_struct *vma, unsigned long reqprot, unsigned long prot) { diff --git a/security/commoncap.c b/security/commoncap.c index 48b7e02..6bcf6e8 100644 --- a/security/commoncap.c +++ b/security/commoncap.c @@ -984,3 +984,33 @@ int cap_vm_enough_memory(struct mm_struct *mm, long pages) cap_sys_admin = 1; return __vm_enough_memory(mm, pages, cap_sys_admin); } + +/* + * cap_file_mmap - check if able to map given addr + * @file: unused + * @reqprot: unused + * @prot: unused + * @flags: unused + * @addr: address attempting to be mapped + * @addr_only: unused + * + * If the process is attempting to map memory below mmap_min_addr they need + * CAP_SYS_RAWIO. The other parameters to this function are unused by the + * capability security module. Returns 0 if this mapping should be allowed + * -EPERM if not. + */ +int cap_file_mmap(struct file *file, unsigned long reqprot, + unsigned long prot, unsigned long flags, + unsigned long addr, unsigned long addr_only) +{ + int ret = 0; + + if (addr < mmap_min_addr) { + ret = cap_capable(current, current_cred(), CAP_SYS_RAWIO, + SECURITY_CAP_AUDIT); + /* set PF_SUPERPRIV if it turns out we allow the low mmap */ + if (ret == 0) + current->flags |= PF_SUPERPRIV; + } + return ret; +} -- cgit v0.10.2 From 8cf948e744e0218af604c32edecde10006dc8e9e Mon Sep 17 00:00:00 2001 From: Eric Paris Date: Fri, 31 Jul 2009 12:54:05 -0400 Subject: SELinux: call cap_file_mmap in selinux_file_mmap Currently SELinux does not check CAP_SYS_RAWIO in the file_mmap hook. This means there is no DAC check on the ability to mmap low addresses in the memory space. This function adds the DAC check for CAP_SYS_RAWIO while maintaining the selinux check on mmap_zero. This means that processes which need to mmap low memory will need CAP_SYS_RAWIO and mmap_zero but will NOT need the SELinux sys_rawio capability. Signed-off-by: Eric Paris Signed-off-by: James Morris diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c index 1e8cfc4..e6d1432 100644 --- a/security/selinux/hooks.c +++ b/security/selinux/hooks.c @@ -3030,9 +3030,21 @@ static int selinux_file_mmap(struct file *file, unsigned long reqprot, int rc = 0; u32 sid = current_sid(); - if (addr < mmap_min_addr) + /* + * notice that we are intentionally putting the SELinux check before + * the secondary cap_file_mmap check. This is such a likely attempt + * at bad behaviour/exploit that we always want to get the AVC, even + * if DAC would have also denied the operation. + */ + if (addr < mmap_min_addr) { rc = avc_has_perm(sid, sid, SECCLASS_MEMPROTECT, MEMPROTECT__MMAP_ZERO, NULL); + if (rc) + return rc; + } + + /* do DAC check on address space usage */ + rc = cap_file_mmap(file, reqprot, prot, flags, addr, addr_only); if (rc || addr_only) return rc; -- cgit v0.10.2 From 788084aba2ab7348257597496befcbccabdc98a3 Mon Sep 17 00:00:00 2001 From: Eric Paris Date: Fri, 31 Jul 2009 12:54:11 -0400 Subject: Security/SELinux: seperate lsm specific mmap_min_addr Currently SELinux enforcement of controls on the ability to map low memory is determined by the mmap_min_addr tunable. This patch causes SELinux to ignore the tunable and instead use a seperate Kconfig option specific to how much space the LSM should protect. The tunable will now only control the need for CAP_SYS_RAWIO and SELinux permissions will always protect the amount of low memory designated by CONFIG_LSM_MMAP_MIN_ADDR. This allows users who need to disable the mmap_min_addr controls (usual reason being they run WINE as a non-root user) to do so and still have SELinux controls preventing confined domains (like a web server) from being able to map some area of low memory. Signed-off-by: Eric Paris Signed-off-by: James Morris diff --git a/include/linux/mm.h b/include/linux/mm.h index ba3a7cb..9a72cc7 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -34,8 +34,6 @@ extern int sysctl_legacy_va_layout; #define sysctl_legacy_va_layout 0 #endif -extern unsigned long mmap_min_addr; - #include #include #include @@ -575,19 +573,6 @@ static inline void set_page_links(struct page *page, enum zone_type zone, } /* - * If a hint addr is less than mmap_min_addr change hint to be as - * low as possible but still greater than mmap_min_addr - */ -static inline unsigned long round_hint_to_min(unsigned long hint) -{ - hint &= PAGE_MASK; - if (((void *)hint != NULL) && - (hint < mmap_min_addr)) - return PAGE_ALIGN(mmap_min_addr); - return hint; -} - -/* * Some inline functions in vmstat.h depend on page_zone() */ #include diff --git a/include/linux/security.h b/include/linux/security.h index ac4bc37..dc3472c 100644 --- a/include/linux/security.h +++ b/include/linux/security.h @@ -28,6 +28,7 @@ #include #include #include +#include /* PAGE_ALIGN */ #include #include #include @@ -95,6 +96,7 @@ extern int cap_netlink_send(struct sock *sk, struct sk_buff *skb); extern int cap_netlink_recv(struct sk_buff *skb, int cap); extern unsigned long mmap_min_addr; +extern unsigned long dac_mmap_min_addr; /* * Values used in the task_security_ops calls */ @@ -147,6 +149,21 @@ static inline void security_free_mnt_opts(struct security_mnt_opts *opts) opts->num_mnt_opts = 0; } +/* + * If a hint addr is less than mmap_min_addr change hint to be as + * low as possible but still greater than mmap_min_addr + */ +static inline unsigned long round_hint_to_min(unsigned long hint) +{ + hint &= PAGE_MASK; + if (((void *)hint != NULL) && + (hint < mmap_min_addr)) + return PAGE_ALIGN(mmap_min_addr); + return hint; +} + +extern int mmap_min_addr_handler(struct ctl_table *table, int write, struct file *filp, + void __user *buffer, size_t *lenp, loff_t *ppos); /** * struct security_operations - main security structure * diff --git a/kernel/sysctl.c b/kernel/sysctl.c index 98e0232..58be760 100644 --- a/kernel/sysctl.c +++ b/kernel/sysctl.c @@ -49,6 +49,7 @@ #include #include #include +#include #include #include @@ -1306,10 +1307,10 @@ static struct ctl_table vm_table[] = { { .ctl_name = CTL_UNNUMBERED, .procname = "mmap_min_addr", - .data = &mmap_min_addr, - .maxlen = sizeof(unsigned long), + .data = &dac_mmap_min_addr, + .maxlen = sizeof(unsigned long), .mode = 0644, - .proc_handler = &proc_doulongvec_minmax, + .proc_handler = &mmap_min_addr_handler, }, #ifdef CONFIG_NUMA { diff --git a/mm/Kconfig b/mm/Kconfig index c948d4c..fe5f674 100644 --- a/mm/Kconfig +++ b/mm/Kconfig @@ -225,9 +225,9 @@ config DEFAULT_MMAP_MIN_ADDR For most ia64, ppc64 and x86 users with lots of address space a value of 65536 is reasonable and should cause no problems. On arm and other archs it should not be higher than 32768. - Programs which use vm86 functionality would either need additional - permissions from either the LSM or the capabilities module or have - this protection disabled. + Programs which use vm86 functionality or have some need to map + this low address space will need CAP_SYS_RAWIO or disable this + protection by setting the value to 0. This value can be changed after boot using the /proc/sys/vm/mmap_min_addr tunable. diff --git a/mm/mmap.c b/mm/mmap.c index 34579b2..8101de4 100644 --- a/mm/mmap.c +++ b/mm/mmap.c @@ -88,9 +88,6 @@ int sysctl_overcommit_ratio = 50; /* default is 50% */ int sysctl_max_map_count __read_mostly = DEFAULT_MAX_MAP_COUNT; struct percpu_counter vm_committed_as; -/* amount of vm to protect from userspace access */ -unsigned long mmap_min_addr = CONFIG_DEFAULT_MMAP_MIN_ADDR; - /* * Check that a process has enough memory to allocate a new virtual * mapping. 0 means there is enough memory for the allocation to diff --git a/mm/nommu.c b/mm/nommu.c index 53cab10..28754c4 100644 --- a/mm/nommu.c +++ b/mm/nommu.c @@ -69,9 +69,6 @@ int sysctl_max_map_count = DEFAULT_MAX_MAP_COUNT; int sysctl_nr_trim_pages = CONFIG_NOMMU_INITIAL_TRIM_EXCESS; int heap_stack_gap = 0; -/* amount of vm to protect from userspace access */ -unsigned long mmap_min_addr = CONFIG_DEFAULT_MMAP_MIN_ADDR; - atomic_long_t mmap_pages_allocated; EXPORT_SYMBOL(mem_map); diff --git a/security/Kconfig b/security/Kconfig index d23c839..9c60c34 100644 --- a/security/Kconfig +++ b/security/Kconfig @@ -113,6 +113,22 @@ config SECURITY_ROOTPLUG If you are unsure how to answer this question, answer N. +config LSM_MMAP_MIN_ADDR + int "Low address space for LSM to from user allocation" + depends on SECURITY && SECURITY_SELINUX + default 65535 + help + This is the portion of low virtual memory which should be protected + from userspace allocation. Keeping a user from writing to low pages + can help reduce the impact of kernel NULL pointer bugs. + + For most ia64, ppc64 and x86 users with lots of address space + a value of 65536 is reasonable and should cause no problems. + On arm and other archs it should not be higher than 32768. + Programs which use vm86 functionality or have some need to map + this low address space will need the permission specific to the + systems running LSM. + source security/selinux/Kconfig source security/smack/Kconfig source security/tomoyo/Kconfig diff --git a/security/Makefile b/security/Makefile index c67557c..b56e7f9 100644 --- a/security/Makefile +++ b/security/Makefile @@ -8,7 +8,7 @@ subdir-$(CONFIG_SECURITY_SMACK) += smack subdir-$(CONFIG_SECURITY_TOMOYO) += tomoyo # always enable default capabilities -obj-y += commoncap.o +obj-y += commoncap.o min_addr.o # Object file lists obj-$(CONFIG_SECURITY) += security.o capability.o diff --git a/security/commoncap.c b/security/commoncap.c index 6bcf6e8..e3097c0 100644 --- a/security/commoncap.c +++ b/security/commoncap.c @@ -1005,7 +1005,7 @@ int cap_file_mmap(struct file *file, unsigned long reqprot, { int ret = 0; - if (addr < mmap_min_addr) { + if (addr < dac_mmap_min_addr) { ret = cap_capable(current, current_cred(), CAP_SYS_RAWIO, SECURITY_CAP_AUDIT); /* set PF_SUPERPRIV if it turns out we allow the low mmap */ diff --git a/security/min_addr.c b/security/min_addr.c new file mode 100644 index 0000000..14cc7b3 --- /dev/null +++ b/security/min_addr.c @@ -0,0 +1,49 @@ +#include +#include +#include +#include + +/* amount of vm to protect from userspace access by both DAC and the LSM*/ +unsigned long mmap_min_addr; +/* amount of vm to protect from userspace using CAP_SYS_RAWIO (DAC) */ +unsigned long dac_mmap_min_addr = CONFIG_DEFAULT_MMAP_MIN_ADDR; +/* amount of vm to protect from userspace using the LSM = CONFIG_LSM_MMAP_MIN_ADDR */ + +/* + * Update mmap_min_addr = max(dac_mmap_min_addr, CONFIG_LSM_MMAP_MIN_ADDR) + */ +static void update_mmap_min_addr(void) +{ +#ifdef CONFIG_LSM_MMAP_MIN_ADDR + if (dac_mmap_min_addr > CONFIG_LSM_MMAP_MIN_ADDR) + mmap_min_addr = dac_mmap_min_addr; + else + mmap_min_addr = CONFIG_LSM_MMAP_MIN_ADDR; +#else + mmap_min_addr = dac_mmap_min_addr; +#endif +} + +/* + * sysctl handler which just sets dac_mmap_min_addr = the new value and then + * calls update_mmap_min_addr() so non MAP_FIXED hints get rounded properly + */ +int mmap_min_addr_handler(struct ctl_table *table, int write, struct file *filp, + void __user *buffer, size_t *lenp, loff_t *ppos) +{ + int ret; + + ret = proc_doulongvec_minmax(table, write, filp, buffer, lenp, ppos); + + update_mmap_min_addr(); + + return ret; +} + +int __init init_mmap_min_addr(void) +{ + update_mmap_min_addr(); + + return 0; +} +pure_initcall(init_mmap_min_addr); diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c index e6d1432..8d8b69c 100644 --- a/security/selinux/hooks.c +++ b/security/selinux/hooks.c @@ -3036,7 +3036,7 @@ static int selinux_file_mmap(struct file *file, unsigned long reqprot, * at bad behaviour/exploit that we always want to get the AVC, even * if DAC would have also denied the operation. */ - if (addr < mmap_min_addr) { + if (addr < CONFIG_LSM_MMAP_MIN_ADDR) { rc = avc_has_perm(sid, sid, SECCLASS_MEMPROTECT, MEMPROTECT__MMAP_ZERO, NULL); if (rc) -- cgit v0.10.2 From 1d9959734a1949ea4f2427bd2d8b21ede6b2441c Mon Sep 17 00:00:00 2001 From: Eric Paris Date: Fri, 7 Aug 2009 14:53:57 -0400 Subject: security: define round_hint_to_min in !CONFIG_SECURITY Fix the header files to define round_hint_to_min() and to define mmap_min_addr_handler() in the !CONFIG_SECURITY case. Built and tested with !CONFIG_SECURITY Signed-off-by: Eric Paris Signed-off-by: James Morris diff --git a/include/linux/security.h b/include/linux/security.h index dc3472c..1f16eea 100644 --- a/include/linux/security.h +++ b/include/linux/security.h @@ -121,6 +121,21 @@ struct request_sock; #define LSM_UNSAFE_PTRACE 2 #define LSM_UNSAFE_PTRACE_CAP 4 +/* + * If a hint addr is less than mmap_min_addr change hint to be as + * low as possible but still greater than mmap_min_addr + */ +static inline unsigned long round_hint_to_min(unsigned long hint) +{ + hint &= PAGE_MASK; + if (((void *)hint != NULL) && + (hint < mmap_min_addr)) + return PAGE_ALIGN(mmap_min_addr); + return hint; +} +extern int mmap_min_addr_handler(struct ctl_table *table, int write, struct file *filp, + void __user *buffer, size_t *lenp, loff_t *ppos); + #ifdef CONFIG_SECURITY struct security_mnt_opts { @@ -149,21 +164,6 @@ static inline void security_free_mnt_opts(struct security_mnt_opts *opts) opts->num_mnt_opts = 0; } -/* - * If a hint addr is less than mmap_min_addr change hint to be as - * low as possible but still greater than mmap_min_addr - */ -static inline unsigned long round_hint_to_min(unsigned long hint) -{ - hint &= PAGE_MASK; - if (((void *)hint != NULL) && - (hint < mmap_min_addr)) - return PAGE_ALIGN(mmap_min_addr); - return hint; -} - -extern int mmap_min_addr_handler(struct ctl_table *table, int write, struct file *filp, - void __user *buffer, size_t *lenp, loff_t *ppos); /** * struct security_operations - main security structure * -- cgit v0.10.2 From bc990f5cb424cdca9dda866785d088e2c2110ecc Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Sun, 16 Aug 2009 20:36:34 -0400 Subject: xfs: fix locking in xfs_iget_cache_hit The locking in xfs_iget_cache_hit currently has numerous problems: - we clear the reclaim tag without i_flags_lock which protects modifications to it - we call inode_init_always which can sleep with pag_ici_lock held (this is oss.sgi.com BZ #819) - we acquire and drop i_flags_lock a lot and thus provide no consistency between the various flags we set/clear under it This patch fixes all that with a major revamp of the locking in the function. The new version acquires i_flags_lock early and only drops it once we need to call into inode_init_always or before calling xfs_ilock. This patch fixes a bug seen in the wild where we race modifying the reclaim tag. Signed-off-by: Christoph Hellwig Reviewed-by: Felix Blyakher Reviewed-by: Eric Sandeen Signed-off-by: Felix Blyakher diff --git a/fs/xfs/linux-2.6/xfs_sync.c b/fs/xfs/linux-2.6/xfs_sync.c index b619d6b..98ef624 100644 --- a/fs/xfs/linux-2.6/xfs_sync.c +++ b/fs/xfs/linux-2.6/xfs_sync.c @@ -708,6 +708,16 @@ xfs_reclaim_inode( return 0; } +void +__xfs_inode_set_reclaim_tag( + struct xfs_perag *pag, + struct xfs_inode *ip) +{ + radix_tree_tag_set(&pag->pag_ici_root, + XFS_INO_TO_AGINO(ip->i_mount, ip->i_ino), + XFS_ICI_RECLAIM_TAG); +} + /* * We set the inode flag atomically with the radix tree tag. * Once we get tag lookups on the radix tree, this inode flag @@ -722,8 +732,7 @@ xfs_inode_set_reclaim_tag( read_lock(&pag->pag_ici_lock); spin_lock(&ip->i_flags_lock); - radix_tree_tag_set(&pag->pag_ici_root, - XFS_INO_TO_AGINO(mp, ip->i_ino), XFS_ICI_RECLAIM_TAG); + __xfs_inode_set_reclaim_tag(pag, ip); __xfs_iflags_set(ip, XFS_IRECLAIMABLE); spin_unlock(&ip->i_flags_lock); read_unlock(&pag->pag_ici_lock); diff --git a/fs/xfs/linux-2.6/xfs_sync.h b/fs/xfs/linux-2.6/xfs_sync.h index 2a10301..5912060 100644 --- a/fs/xfs/linux-2.6/xfs_sync.h +++ b/fs/xfs/linux-2.6/xfs_sync.h @@ -48,6 +48,7 @@ int xfs_reclaim_inode(struct xfs_inode *ip, int locked, int sync_mode); int xfs_reclaim_inodes(struct xfs_mount *mp, int mode); void xfs_inode_set_reclaim_tag(struct xfs_inode *ip); +void __xfs_inode_set_reclaim_tag(struct xfs_perag *pag, struct xfs_inode *ip); void xfs_inode_clear_reclaim_tag(struct xfs_inode *ip); void __xfs_inode_clear_reclaim_tag(struct xfs_mount *mp, struct xfs_perag *pag, struct xfs_inode *ip); diff --git a/fs/xfs/xfs_iget.c b/fs/xfs/xfs_iget.c index 34ec869..ecbf8b4 100644 --- a/fs/xfs/xfs_iget.c +++ b/fs/xfs/xfs_iget.c @@ -191,80 +191,82 @@ xfs_iget_cache_hit( int flags, int lock_flags) __releases(pag->pag_ici_lock) { + struct inode *inode = VFS_I(ip); struct xfs_mount *mp = ip->i_mount; - int error = EAGAIN; + int error; + + spin_lock(&ip->i_flags_lock); /* - * If INEW is set this inode is being set up - * If IRECLAIM is set this inode is being torn down - * Pause and try again. + * If we are racing with another cache hit that is currently + * instantiating this inode or currently recycling it out of + * reclaimabe state, wait for the initialisation to complete + * before continuing. + * + * XXX(hch): eventually we should do something equivalent to + * wait_on_inode to wait for these flags to be cleared + * instead of polling for it. */ - if (xfs_iflags_test(ip, (XFS_INEW|XFS_IRECLAIM))) { + if (ip->i_flags & (XFS_INEW|XFS_IRECLAIM)) { XFS_STATS_INC(xs_ig_frecycle); + error = EAGAIN; goto out_error; } - /* If IRECLAIMABLE is set, we've torn down the vfs inode part */ - if (xfs_iflags_test(ip, XFS_IRECLAIMABLE)) { - - /* - * If lookup is racing with unlink, then we should return an - * error immediately so we don't remove it from the reclaim - * list and potentially leak the inode. - */ - if ((ip->i_d.di_mode == 0) && !(flags & XFS_IGET_CREATE)) { - error = ENOENT; - goto out_error; - } + /* + * If lookup is racing with unlink return an error immediately. + */ + if (ip->i_d.di_mode == 0 && !(flags & XFS_IGET_CREATE)) { + error = ENOENT; + goto out_error; + } + /* + * If IRECLAIMABLE is set, we've torn down the VFS inode already. + * Need to carefully get it back into useable state. + */ + if (ip->i_flags & XFS_IRECLAIMABLE) { xfs_itrace_exit_tag(ip, "xfs_iget.alloc"); /* - * We need to re-initialise the VFS inode as it has been - * 'freed' by the VFS. Do this here so we can deal with - * errors cleanly, then tag it so it can be set up correctly - * later. + * We need to set XFS_INEW atomically with clearing the + * reclaimable tag so that we do have an indicator of the + * inode still being initialized. */ - if (inode_init_always(mp->m_super, VFS_I(ip))) { - error = ENOMEM; - goto out_error; - } + ip->i_flags |= XFS_INEW; + ip->i_flags &= ~XFS_IRECLAIMABLE; + __xfs_inode_clear_reclaim_tag(mp, pag, ip); - /* - * We must set the XFS_INEW flag before clearing the - * XFS_IRECLAIMABLE flag so that if a racing lookup does - * not find the XFS_IRECLAIMABLE above but has the igrab() - * below succeed we can safely check XFS_INEW to detect - * that this inode is still being initialised. - */ - xfs_iflags_set(ip, XFS_INEW); - xfs_iflags_clear(ip, XFS_IRECLAIMABLE); + spin_unlock(&ip->i_flags_lock); + read_unlock(&pag->pag_ici_lock); - /* clear the radix tree reclaim flag as well. */ - __xfs_inode_clear_reclaim_tag(mp, pag, ip); - } else if (!igrab(VFS_I(ip))) { + error = -inode_init_always(mp->m_super, inode); + if (error) { + /* + * Re-initializing the inode failed, and we are in deep + * trouble. Try to re-add it to the reclaim list. + */ + read_lock(&pag->pag_ici_lock); + spin_lock(&ip->i_flags_lock); + + ip->i_flags &= ~XFS_INEW; + ip->i_flags |= XFS_IRECLAIMABLE; + __xfs_inode_set_reclaim_tag(pag, ip); + goto out_error; + } + inode->i_state = I_LOCK|I_NEW; + } else { /* If the VFS inode is being torn down, pause and try again. */ - XFS_STATS_INC(xs_ig_frecycle); - goto out_error; - } else if (xfs_iflags_test(ip, XFS_INEW)) { - /* - * We are racing with another cache hit that is - * currently recycling this inode out of the XFS_IRECLAIMABLE - * state. Wait for the initialisation to complete before - * continuing. - */ - wait_on_inode(VFS_I(ip)); - } + if (!igrab(inode)) { + error = EAGAIN; + goto out_error; + } - if (ip->i_d.di_mode == 0 && !(flags & XFS_IGET_CREATE)) { - error = ENOENT; - iput(VFS_I(ip)); - goto out_error; + /* We've got a live one. */ + spin_unlock(&ip->i_flags_lock); + read_unlock(&pag->pag_ici_lock); } - /* We've got a live one. */ - read_unlock(&pag->pag_ici_lock); - if (lock_flags != 0) xfs_ilock(ip, lock_flags); @@ -274,6 +276,7 @@ xfs_iget_cache_hit( return 0; out_error: + spin_unlock(&ip->i_flags_lock); read_unlock(&pag->pag_ici_lock); return error; } -- cgit v0.10.2 From c7f6fa44115d401e89db730f357629d39f8e4ba6 Mon Sep 17 00:00:00 2001 From: Bartlomiej Zolnierkiewicz Date: Tue, 28 Jul 2009 23:52:54 +0200 Subject: x86, mce: don't log boot MCEs on Pentium M (model == 13) CPUs On my legacy Pentium M laptop (Acer Extensa 2900) I get bogus MCE on a cold boot with CONFIG_X86_NEW_MCE enabled, i.e. (after decoding it with mcelog): MCE 0 HARDWARE ERROR. This is *NOT* a software problem! Please contact your hardware vendor CPU 0 BANK 1 MCG status: MCi status: Error overflow Uncorrected error Error enabled Processor context corrupt MCA: Data CACHE Level-1 UNKNOWN Error STATUS f200000000000195 MCGSTATUS 0 [ The other STATUS values observed: f2000000000001b5 (... UNKNOWN error) and f200000000000115 (... READ Error). To verify that this is not a CONFIG_X86_NEW_MCE bug I also modified the CONFIG_X86_OLD_MCE code (which doesn't log any MCEs) to dump content of STATUS MSR before it is cleared during initialization. ] Since the bogus MCE results in a kernel taint (which in turn disables lockdep support) don't log boot MCEs on Pentium M (model == 13) CPUs by default ("mce=bootlog" boot parameter can be be used to get the old behavior). Signed-off-by: Bartlomiej Zolnierkiewicz Reviewed-by: Andi Kleen Signed-off-by: H. Peter Anvin Signed-off-by: Ingo Molnar diff --git a/arch/x86/kernel/cpu/mcheck/mce.c b/arch/x86/kernel/cpu/mcheck/mce.c index 1cfb623..a0c2910 100644 --- a/arch/x86/kernel/cpu/mcheck/mce.c +++ b/arch/x86/kernel/cpu/mcheck/mce.c @@ -1273,6 +1273,10 @@ static void mce_cpu_quirks(struct cpuinfo_x86 *c) if ((c->x86 > 6 || (c->x86 == 6 && c->x86_model >= 0xe)) && monarch_timeout < 0) monarch_timeout = USEC_PER_SEC; + + /* There are also broken BIOSes on some Pentium M systems. */ + if (c->x86 == 6 && c->x86_model == 13 && mce_bootlog < 0) + mce_bootlog = 0; } if (monarch_timeout < 0) monarch_timeout = 0; -- cgit v0.10.2 From 2932cffc89e9a1476b28a59896fa4f81e0d4f131 Mon Sep 17 00:00:00 2001 From: "Carlos R. Mafra" Date: Mon, 17 Aug 2009 00:36:21 +0200 Subject: perf: Rename perf-examples.txt to examples.txt Rename it to examples.txt to avoid the perf-*.txt pattern in the Makefile, otherwise 'make doc' fails because perf-examples.txt is not formatted to be a man page: ERROR: perf-examples.txt: line 1: manpage document title is mandatory Signed-off-by: Carlos R. Mafra Cc: Peter Zijlstra Cc: Paul Mackerras LKML-Reference: Signed-off-by: Ingo Molnar diff --git a/tools/perf/Documentation/examples.txt b/tools/perf/Documentation/examples.txt new file mode 100644 index 0000000..8eb6c48 --- /dev/null +++ b/tools/perf/Documentation/examples.txt @@ -0,0 +1,225 @@ + + ------------------------------ + ****** perf by examples ****** + ------------------------------ + +[ From an e-mail by Ingo Molnar, http://lkml.org/lkml/2009/8/4/346 ] + + +First, discovery/enumeration of available counters can be done via +'perf list': + +titan:~> perf list + [...] + kmem:kmalloc [Tracepoint event] + kmem:kmem_cache_alloc [Tracepoint event] + kmem:kmalloc_node [Tracepoint event] + kmem:kmem_cache_alloc_node [Tracepoint event] + kmem:kfree [Tracepoint event] + kmem:kmem_cache_free [Tracepoint event] + kmem:mm_page_free_direct [Tracepoint event] + kmem:mm_pagevec_free [Tracepoint event] + kmem:mm_page_alloc [Tracepoint event] + kmem:mm_page_alloc_zone_locked [Tracepoint event] + kmem:mm_page_pcpu_drain [Tracepoint event] + kmem:mm_page_alloc_extfrag [Tracepoint event] + +Then any (or all) of the above event sources can be activated and +measured. For example the page alloc/free properties of a 'hackbench +run' are: + + titan:~> perf stat -e kmem:mm_page_pcpu_drain -e kmem:mm_page_alloc + -e kmem:mm_pagevec_free -e kmem:mm_page_free_direct ./hackbench 10 + Time: 0.575 + + Performance counter stats for './hackbench 10': + + 13857 kmem:mm_page_pcpu_drain + 27576 kmem:mm_page_alloc + 6025 kmem:mm_pagevec_free + 20934 kmem:mm_page_free_direct + + 0.613972165 seconds time elapsed + +You can observe the statistical properties as well, by using the +'repeat the workload N times' feature of perf stat: + + titan:~> perf stat --repeat 5 -e kmem:mm_page_pcpu_drain -e + kmem:mm_page_alloc -e kmem:mm_pagevec_free -e + kmem:mm_page_free_direct ./hackbench 10 + Time: 0.627 + Time: 0.644 + Time: 0.564 + Time: 0.559 + Time: 0.626 + + Performance counter stats for './hackbench 10' (5 runs): + + 12920 kmem:mm_page_pcpu_drain ( +- 3.359% ) + 25035 kmem:mm_page_alloc ( +- 3.783% ) + 6104 kmem:mm_pagevec_free ( +- 0.934% ) + 18376 kmem:mm_page_free_direct ( +- 4.941% ) + + 0.643954516 seconds time elapsed ( +- 2.363% ) + +Furthermore, these tracepoints can be used to sample the workload as +well. For example the page allocations done by a 'git gc' can be +captured the following way: + + titan:~/git> perf record -f -e kmem:mm_page_alloc -c 1 ./git gc + Counting objects: 1148, done. + Delta compression using up to 2 threads. + Compressing objects: 100% (450/450), done. + Writing objects: 100% (1148/1148), done. + Total 1148 (delta 690), reused 1148 (delta 690) + [ perf record: Captured and wrote 0.267 MB perf.data (~11679 samples) ] + +To check which functions generated page allocations: + + titan:~/git> perf report + # Samples: 10646 + # + # Overhead Command Shared Object + # ........ ............... .......................... + # + 23.57% git-repack /lib64/libc-2.5.so + 21.81% git /lib64/libc-2.5.so + 14.59% git ./git + 11.79% git-repack ./git + 7.12% git /lib64/ld-2.5.so + 3.16% git-repack /lib64/libpthread-2.5.so + 2.09% git-repack /bin/bash + 1.97% rm /lib64/libc-2.5.so + 1.39% mv /lib64/ld-2.5.so + 1.37% mv /lib64/libc-2.5.so + 1.12% git-repack /lib64/ld-2.5.so + 0.95% rm /lib64/ld-2.5.so + 0.90% git-update-serv /lib64/libc-2.5.so + 0.73% git-update-serv /lib64/ld-2.5.so + 0.68% perf /lib64/libpthread-2.5.so + 0.64% git-repack /usr/lib64/libz.so.1.2.3 + +Or to see it on a more finegrained level: + +titan:~/git> perf report --sort comm,dso,symbol +# Samples: 10646 +# +# Overhead Command Shared Object Symbol +# ........ ............... .......................... ...... +# + 9.35% git-repack ./git [.] insert_obj_hash + 9.12% git ./git [.] insert_obj_hash + 7.31% git /lib64/libc-2.5.so [.] memcpy + 6.34% git-repack /lib64/libc-2.5.so [.] _int_malloc + 6.24% git-repack /lib64/libc-2.5.so [.] memcpy + 5.82% git-repack /lib64/libc-2.5.so [.] __GI___fork + 5.47% git /lib64/libc-2.5.so [.] _int_malloc + 2.99% git /lib64/libc-2.5.so [.] memset + +Furthermore, call-graph sampling can be done too, of page +allocations - to see precisely what kind of page allocations there +are: + + titan:~/git> perf record -f -g -e kmem:mm_page_alloc -c 1 ./git gc + Counting objects: 1148, done. + Delta compression using up to 2 threads. + Compressing objects: 100% (450/450), done. + Writing objects: 100% (1148/1148), done. + Total 1148 (delta 690), reused 1148 (delta 690) + [ perf record: Captured and wrote 0.963 MB perf.data (~42069 samples) ] + + titan:~/git> perf report -g + # Samples: 10686 + # + # Overhead Command Shared Object + # ........ ............... .......................... + # + 23.25% git-repack /lib64/libc-2.5.so + | + |--50.00%-- _int_free + | + |--37.50%-- __GI___fork + | make_child + | + |--12.50%-- ptmalloc_unlock_all2 + | make_child + | + --6.25%-- __GI_strcpy + 21.61% git /lib64/libc-2.5.so + | + |--30.00%-- __GI_read + | | + | --83.33%-- git_config_from_file + | git_config + | | + [...] + +Or you can observe the whole system's page allocations for 10 +seconds: + +titan:~/git> perf stat -a -e kmem:mm_page_pcpu_drain -e +kmem:mm_page_alloc -e kmem:mm_pagevec_free -e +kmem:mm_page_free_direct sleep 10 + + Performance counter stats for 'sleep 10': + + 171585 kmem:mm_page_pcpu_drain + 322114 kmem:mm_page_alloc + 73623 kmem:mm_pagevec_free + 254115 kmem:mm_page_free_direct + + 10.000591410 seconds time elapsed + +Or observe how fluctuating the page allocations are, via statistical +analysis done over ten 1-second intervals: + + titan:~/git> perf stat --repeat 10 -a -e kmem:mm_page_pcpu_drain -e + kmem:mm_page_alloc -e kmem:mm_pagevec_free -e + kmem:mm_page_free_direct sleep 1 + + Performance counter stats for 'sleep 1' (10 runs): + + 17254 kmem:mm_page_pcpu_drain ( +- 3.709% ) + 34394 kmem:mm_page_alloc ( +- 4.617% ) + 7509 kmem:mm_pagevec_free ( +- 4.820% ) + 25653 kmem:mm_page_free_direct ( +- 3.672% ) + + 1.058135029 seconds time elapsed ( +- 3.089% ) + +Or you can annotate the recorded 'git gc' run on a per symbol basis +and check which instructions/source-code generated page allocations: + + titan:~/git> perf annotate __GI___fork + ------------------------------------------------ + Percent | Source code & Disassembly of libc-2.5.so + ------------------------------------------------ + : + : + : Disassembly of section .plt: + : Disassembly of section .text: + : + : 00000031a2e95560 <__fork>: + [...] + 0.00 : 31a2e95602: b8 38 00 00 00 mov $0x38,%eax + 0.00 : 31a2e95607: 0f 05 syscall + 83.42 : 31a2e95609: 48 3d 00 f0 ff ff cmp $0xfffffffffffff000,%rax + 0.00 : 31a2e9560f: 0f 87 4d 01 00 00 ja 31a2e95762 <__fork+0x202> + 0.00 : 31a2e95615: 85 c0 test %eax,%eax + +( this shows that 83.42% of __GI___fork's page allocations come from + the 0x38 system call it performs. ) + +etc. etc. - a lot more is possible. I could list a dozen of +other different usecases straight away - neither of which is +possible via /proc/vmstat. + +/proc/vmstat is not in the same league really, in terms of +expressive power of system analysis and performance +analysis. + +All that the above results needed were those new tracepoints +in include/tracing/events/kmem.h. + + Ingo + + diff --git a/tools/perf/Documentation/perf-examples.txt b/tools/perf/Documentation/perf-examples.txt deleted file mode 100644 index 8eb6c48..0000000 --- a/tools/perf/Documentation/perf-examples.txt +++ /dev/null @@ -1,225 +0,0 @@ - - ------------------------------ - ****** perf by examples ****** - ------------------------------ - -[ From an e-mail by Ingo Molnar, http://lkml.org/lkml/2009/8/4/346 ] - - -First, discovery/enumeration of available counters can be done via -'perf list': - -titan:~> perf list - [...] - kmem:kmalloc [Tracepoint event] - kmem:kmem_cache_alloc [Tracepoint event] - kmem:kmalloc_node [Tracepoint event] - kmem:kmem_cache_alloc_node [Tracepoint event] - kmem:kfree [Tracepoint event] - kmem:kmem_cache_free [Tracepoint event] - kmem:mm_page_free_direct [Tracepoint event] - kmem:mm_pagevec_free [Tracepoint event] - kmem:mm_page_alloc [Tracepoint event] - kmem:mm_page_alloc_zone_locked [Tracepoint event] - kmem:mm_page_pcpu_drain [Tracepoint event] - kmem:mm_page_alloc_extfrag [Tracepoint event] - -Then any (or all) of the above event sources can be activated and -measured. For example the page alloc/free properties of a 'hackbench -run' are: - - titan:~> perf stat -e kmem:mm_page_pcpu_drain -e kmem:mm_page_alloc - -e kmem:mm_pagevec_free -e kmem:mm_page_free_direct ./hackbench 10 - Time: 0.575 - - Performance counter stats for './hackbench 10': - - 13857 kmem:mm_page_pcpu_drain - 27576 kmem:mm_page_alloc - 6025 kmem:mm_pagevec_free - 20934 kmem:mm_page_free_direct - - 0.613972165 seconds time elapsed - -You can observe the statistical properties as well, by using the -'repeat the workload N times' feature of perf stat: - - titan:~> perf stat --repeat 5 -e kmem:mm_page_pcpu_drain -e - kmem:mm_page_alloc -e kmem:mm_pagevec_free -e - kmem:mm_page_free_direct ./hackbench 10 - Time: 0.627 - Time: 0.644 - Time: 0.564 - Time: 0.559 - Time: 0.626 - - Performance counter stats for './hackbench 10' (5 runs): - - 12920 kmem:mm_page_pcpu_drain ( +- 3.359% ) - 25035 kmem:mm_page_alloc ( +- 3.783% ) - 6104 kmem:mm_pagevec_free ( +- 0.934% ) - 18376 kmem:mm_page_free_direct ( +- 4.941% ) - - 0.643954516 seconds time elapsed ( +- 2.363% ) - -Furthermore, these tracepoints can be used to sample the workload as -well. For example the page allocations done by a 'git gc' can be -captured the following way: - - titan:~/git> perf record -f -e kmem:mm_page_alloc -c 1 ./git gc - Counting objects: 1148, done. - Delta compression using up to 2 threads. - Compressing objects: 100% (450/450), done. - Writing objects: 100% (1148/1148), done. - Total 1148 (delta 690), reused 1148 (delta 690) - [ perf record: Captured and wrote 0.267 MB perf.data (~11679 samples) ] - -To check which functions generated page allocations: - - titan:~/git> perf report - # Samples: 10646 - # - # Overhead Command Shared Object - # ........ ............... .......................... - # - 23.57% git-repack /lib64/libc-2.5.so - 21.81% git /lib64/libc-2.5.so - 14.59% git ./git - 11.79% git-repack ./git - 7.12% git /lib64/ld-2.5.so - 3.16% git-repack /lib64/libpthread-2.5.so - 2.09% git-repack /bin/bash - 1.97% rm /lib64/libc-2.5.so - 1.39% mv /lib64/ld-2.5.so - 1.37% mv /lib64/libc-2.5.so - 1.12% git-repack /lib64/ld-2.5.so - 0.95% rm /lib64/ld-2.5.so - 0.90% git-update-serv /lib64/libc-2.5.so - 0.73% git-update-serv /lib64/ld-2.5.so - 0.68% perf /lib64/libpthread-2.5.so - 0.64% git-repack /usr/lib64/libz.so.1.2.3 - -Or to see it on a more finegrained level: - -titan:~/git> perf report --sort comm,dso,symbol -# Samples: 10646 -# -# Overhead Command Shared Object Symbol -# ........ ............... .......................... ...... -# - 9.35% git-repack ./git [.] insert_obj_hash - 9.12% git ./git [.] insert_obj_hash - 7.31% git /lib64/libc-2.5.so [.] memcpy - 6.34% git-repack /lib64/libc-2.5.so [.] _int_malloc - 6.24% git-repack /lib64/libc-2.5.so [.] memcpy - 5.82% git-repack /lib64/libc-2.5.so [.] __GI___fork - 5.47% git /lib64/libc-2.5.so [.] _int_malloc - 2.99% git /lib64/libc-2.5.so [.] memset - -Furthermore, call-graph sampling can be done too, of page -allocations - to see precisely what kind of page allocations there -are: - - titan:~/git> perf record -f -g -e kmem:mm_page_alloc -c 1 ./git gc - Counting objects: 1148, done. - Delta compression using up to 2 threads. - Compressing objects: 100% (450/450), done. - Writing objects: 100% (1148/1148), done. - Total 1148 (delta 690), reused 1148 (delta 690) - [ perf record: Captured and wrote 0.963 MB perf.data (~42069 samples) ] - - titan:~/git> perf report -g - # Samples: 10686 - # - # Overhead Command Shared Object - # ........ ............... .......................... - # - 23.25% git-repack /lib64/libc-2.5.so - | - |--50.00%-- _int_free - | - |--37.50%-- __GI___fork - | make_child - | - |--12.50%-- ptmalloc_unlock_all2 - | make_child - | - --6.25%-- __GI_strcpy - 21.61% git /lib64/libc-2.5.so - | - |--30.00%-- __GI_read - | | - | --83.33%-- git_config_from_file - | git_config - | | - [...] - -Or you can observe the whole system's page allocations for 10 -seconds: - -titan:~/git> perf stat -a -e kmem:mm_page_pcpu_drain -e -kmem:mm_page_alloc -e kmem:mm_pagevec_free -e -kmem:mm_page_free_direct sleep 10 - - Performance counter stats for 'sleep 10': - - 171585 kmem:mm_page_pcpu_drain - 322114 kmem:mm_page_alloc - 73623 kmem:mm_pagevec_free - 254115 kmem:mm_page_free_direct - - 10.000591410 seconds time elapsed - -Or observe how fluctuating the page allocations are, via statistical -analysis done over ten 1-second intervals: - - titan:~/git> perf stat --repeat 10 -a -e kmem:mm_page_pcpu_drain -e - kmem:mm_page_alloc -e kmem:mm_pagevec_free -e - kmem:mm_page_free_direct sleep 1 - - Performance counter stats for 'sleep 1' (10 runs): - - 17254 kmem:mm_page_pcpu_drain ( +- 3.709% ) - 34394 kmem:mm_page_alloc ( +- 4.617% ) - 7509 kmem:mm_pagevec_free ( +- 4.820% ) - 25653 kmem:mm_page_free_direct ( +- 3.672% ) - - 1.058135029 seconds time elapsed ( +- 3.089% ) - -Or you can annotate the recorded 'git gc' run on a per symbol basis -and check which instructions/source-code generated page allocations: - - titan:~/git> perf annotate __GI___fork - ------------------------------------------------ - Percent | Source code & Disassembly of libc-2.5.so - ------------------------------------------------ - : - : - : Disassembly of section .plt: - : Disassembly of section .text: - : - : 00000031a2e95560 <__fork>: - [...] - 0.00 : 31a2e95602: b8 38 00 00 00 mov $0x38,%eax - 0.00 : 31a2e95607: 0f 05 syscall - 83.42 : 31a2e95609: 48 3d 00 f0 ff ff cmp $0xfffffffffffff000,%rax - 0.00 : 31a2e9560f: 0f 87 4d 01 00 00 ja 31a2e95762 <__fork+0x202> - 0.00 : 31a2e95615: 85 c0 test %eax,%eax - -( this shows that 83.42% of __GI___fork's page allocations come from - the 0x38 system call it performs. ) - -etc. etc. - a lot more is possible. I could list a dozen of -other different usecases straight away - neither of which is -possible via /proc/vmstat. - -/proc/vmstat is not in the same league really, in terms of -expressive power of system analysis and performance -analysis. - -All that the above results needed were those new tracepoints -in include/tracing/events/kmem.h. - - Ingo - - -- cgit v0.10.2 From e1ac3614ff606ae03677f47459113f98a19af63c Mon Sep 17 00:00:00 2001 From: Paul Mackerras Date: Fri, 14 Aug 2009 15:39:10 +1000 Subject: perf_counter: Check task on counter read IPI In general, code in perf_counter.c that is called through an IPI checks, for per-task counters, that the counter's task is still the current task. This is to handle the race condition where the cpu switches from the task we want to another task in the interval between sending the IPI and the IPI arriving and being handled on the target CPU. For some reason, __perf_counter_read is missing this check, yet there is no reason why the race condition can't occur. This adds a check that the current task is the one we want. If it isn't, we just return. In that case the counter->count value should be up to date, since it will have been updated when the counter was scheduled out, which must have happened since the IPI was sent. I don't have an example of an actual failure due to this race, but it seems obvious that it could occur and we need to guard against it. Signed-off-by: Paul Mackerras Acked-by: Peter Zijlstra LKML-Reference: <19076.63614.277861.368125@drongo.ozlabs.ibm.com> Signed-off-by: Ingo Molnar diff --git a/kernel/perf_counter.c b/kernel/perf_counter.c index 534e20d..b8fe739 100644 --- a/kernel/perf_counter.c +++ b/kernel/perf_counter.c @@ -1503,10 +1503,21 @@ static void perf_counter_enable_on_exec(struct task_struct *task) */ static void __perf_counter_read(void *info) { + struct perf_cpu_context *cpuctx = &__get_cpu_var(perf_cpu_context); struct perf_counter *counter = info; struct perf_counter_context *ctx = counter->ctx; unsigned long flags; + /* + * If this is a task context, we need to check whether it is + * the current task context of this cpu. If not it has been + * scheduled out before the smp call arrived. In that case + * counter->count would have been updated to a recent sample + * when the counter was scheduled out. + */ + if (ctx->task && cpuctx->task_ctx != ctx) + return; + local_irq_save(flags); if (ctx->is_active) update_context_time(ctx); -- cgit v0.10.2 From de809347aeef0a68c04576c464414d0e4dce59fc Mon Sep 17 00:00:00 2001 From: Amerigo Wang Date: Mon, 17 Aug 2009 05:43:01 -0400 Subject: timers: Drop write permission on /proc/timer_list /proc/timer_list and /proc/slabinfo are not supposed to be written, so there should be no write permissions on it. Signed-off-by: WANG Cong Cc: Pekka Enberg Cc: Vegard Nossum Cc: Eduard - Gabriel Munteanu Cc: linux-mm@kvack.org Cc: Christoph Lameter Cc: David Rientjes Cc: Amerigo Wang Cc: Matt Mackall Cc: Arjan van de Ven LKML-Reference: <20090817094525.6355.88682.sendpatchset@localhost.localdomain> Signed-off-by: Ingo Molnar diff --git a/kernel/time/timer_list.c b/kernel/time/timer_list.c index a999b92..fddd69d 100644 --- a/kernel/time/timer_list.c +++ b/kernel/time/timer_list.c @@ -286,7 +286,7 @@ static int __init init_timer_list_procfs(void) { struct proc_dir_entry *pe; - pe = proc_create("timer_list", 0644, NULL, &timer_list_fops); + pe = proc_create("timer_list", 0444, NULL, &timer_list_fops); if (!pe) return -ENOMEM; return 0; -- cgit v0.10.2 From e412cd257e0d51e0ecbb89f50953835b5a0681b2 Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Mon, 17 Aug 2009 10:19:00 +0200 Subject: x86, mce: Don't initialize MCEs on unknown CPUs An older test-box started hanging at the following point during bootup: [ 0.022996] Mount-cache hash table entries: 512 [ 0.024996] Initializing cgroup subsys debug [ 0.025996] Initializing cgroup subsys cpuacct [ 0.026995] Initializing cgroup subsys devices [ 0.027995] Initializing cgroup subsys freezer [ 0.028995] mce: CPU supports 5 MCE banks I've bisected it down to commit 4efc0670 ("x86, mce: use 64bit machine check code on 32bit"), which utilizes the MCE code on 32-bit systems too. The problem is caused by this detail in my config: # CONFIG_CPU_SUP_INTEL is not set This disables the quirks in mce_cpu_quirks() but still enables MCE support - which then hangs due to the missing quirk workaround needed on this CPU: if (c->x86 == 6 && c->x86_model < 0x1A && banks > 0) mce_banks[0].init = 0; The safe solution is to not initialize MCEs if we dont know on what CPU we are running (or if that CPU's support code got disabled in the config). Also be a bit more defensive on 32-bit systems: dont do a boot-time dump of pending MCEs not just on the specific system that we found a problem with (Pentium-M), but earlier ones as well. Now this problem is probably not common and disabling CPU support is rare - but still being more defensive in something we turned on for a wide range of CPUs is prudent. Cc: Hidetoshi Seto LKML-Reference: Message-ID: <4A88E3E4.40506@jp.fujitsu.com> Signed-off-by: Ingo Molnar diff --git a/arch/x86/kernel/cpu/mcheck/mce.c b/arch/x86/kernel/cpu/mcheck/mce.c index a0c2910..0121304 100644 --- a/arch/x86/kernel/cpu/mcheck/mce.c +++ b/arch/x86/kernel/cpu/mcheck/mce.c @@ -1226,8 +1226,13 @@ static void mce_init(void) } /* Add per CPU specific workarounds here */ -static void mce_cpu_quirks(struct cpuinfo_x86 *c) +static int mce_cpu_quirks(struct cpuinfo_x86 *c) { + if (c->x86_vendor == X86_VENDOR_UNKNOWN) { + pr_info("MCE: unknown CPU type - not enabling MCE support.\n"); + return -EOPNOTSUPP; + } + /* This should be disabled by the BIOS, but isn't always */ if (c->x86_vendor == X86_VENDOR_AMD) { if (c->x86 == 15 && banks > 4) { @@ -1274,14 +1279,19 @@ static void mce_cpu_quirks(struct cpuinfo_x86 *c) monarch_timeout < 0) monarch_timeout = USEC_PER_SEC; - /* There are also broken BIOSes on some Pentium M systems. */ - if (c->x86 == 6 && c->x86_model == 13 && mce_bootlog < 0) + /* + * There are also broken BIOSes on some Pentium M and + * earlier systems: + */ + if (c->x86 == 6 && c->x86_model <= 13 && mce_bootlog < 0) mce_bootlog = 0; } if (monarch_timeout < 0) monarch_timeout = 0; if (mce_bootlog != 0) mce_panic_timeout = 30; + + return 0; } static void __cpuinit mce_ancient_init(struct cpuinfo_x86 *c) @@ -1342,11 +1352,10 @@ void __cpuinit mcheck_init(struct cpuinfo_x86 *c) if (!mce_available(c)) return; - if (mce_cap_init() < 0) { + if (mce_cap_init() < 0 || mce_cpu_quirks(c) < 0) { mce_disabled = 1; return; } - mce_cpu_quirks(c); machine_check_vector = do_machine_check; -- cgit v0.10.2 From 87c62a66edd645a9b1ff1f9b00ab20c5a93d8845 Mon Sep 17 00:00:00 2001 From: Atsushi Nemoto Date: Tue, 14 Jul 2009 22:37:09 +0900 Subject: MIPS: Fix HPAGE_SIZE redefinition This patch fixes warnings like this: CC fs/proc/meminfo.o In file included from /work/linux/include/linux/mmzone.h:20, from /work/linux/include/linux/gfp.h:4, from /work/linux/include/linux/mm.h:8, from /work/linux/fs/proc/meminfo.c:5: /work/linux/arch/mips/include/asm/page.h:36:1: warning: "HPAGE_SIZE" redefined In file included from /work/linux/fs/proc/meminfo.c:2: /work/linux/include/linux/hugetlb.h:107:1: warning: this is the location of the previous definition Signed-off-by: Atsushi Nemoto Acked-by: David Daney Signed-off-by: Ralf Baechle diff --git a/arch/mips/include/asm/page.h b/arch/mips/include/asm/page.h index 96a14a4..4320239 100644 --- a/arch/mips/include/asm/page.h +++ b/arch/mips/include/asm/page.h @@ -32,10 +32,12 @@ #define PAGE_SIZE (1UL << PAGE_SHIFT) #define PAGE_MASK (~((1 << PAGE_SHIFT) - 1)) +#ifdef CONFIG_HUGETLB_PAGE #define HPAGE_SHIFT (PAGE_SHIFT + PAGE_SHIFT - 3) #define HPAGE_SIZE ((1UL) << HPAGE_SHIFT) #define HPAGE_MASK (~(HPAGE_SIZE - 1)) #define HUGETLB_PAGE_ORDER (HPAGE_SHIFT - PAGE_SHIFT) +#endif /* CONFIG_HUGETLB_PAGE */ #ifndef __ASSEMBLY__ -- cgit v0.10.2 From 523d2f6982136d332c9b7dd00e9e16da1091f060 Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Wed, 1 Jul 2009 21:26:43 +0200 Subject: mac80211: fix todo lock The key todo lock can be taken from different locks that require it to be _bh to avoid lock inversion due to (soft)irqs. This should fix the two problems reported by Bob and Gabor: http://mid.gmane.org/20090619113049.GB18956@hash.localnet http://mid.gmane.org/4A3FA376.8020307@openwrt.org Signed-off-by: Johannes Berg Cc: Bob Copeland Cc: Gabor Juhos Signed-off-by: John W. Linville diff --git a/net/mac80211/key.c b/net/mac80211/key.c index ce26756..659a42d 100644 --- a/net/mac80211/key.c +++ b/net/mac80211/key.c @@ -67,6 +67,8 @@ static DECLARE_WORK(todo_work, key_todo); * * @key: key to add to do item for * @flag: todo flag(s) + * + * Must be called with IRQs or softirqs disabled. */ static void add_todo(struct ieee80211_key *key, u32 flag) { @@ -140,9 +142,9 @@ static void ieee80211_key_enable_hw_accel(struct ieee80211_key *key) ret = drv_set_key(key->local, SET_KEY, &sdata->vif, sta, &key->conf); if (!ret) { - spin_lock(&todo_lock); + spin_lock_bh(&todo_lock); key->flags |= KEY_FLAG_UPLOADED_TO_HARDWARE; - spin_unlock(&todo_lock); + spin_unlock_bh(&todo_lock); } if (ret && ret != -ENOSPC && ret != -EOPNOTSUPP) @@ -164,12 +166,12 @@ static void ieee80211_key_disable_hw_accel(struct ieee80211_key *key) if (!key || !key->local->ops->set_key) return; - spin_lock(&todo_lock); + spin_lock_bh(&todo_lock); if (!(key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)) { - spin_unlock(&todo_lock); + spin_unlock_bh(&todo_lock); return; } - spin_unlock(&todo_lock); + spin_unlock_bh(&todo_lock); sta = get_sta_for_key(key); sdata = key->sdata; @@ -188,9 +190,9 @@ static void ieee80211_key_disable_hw_accel(struct ieee80211_key *key) wiphy_name(key->local->hw.wiphy), key->conf.keyidx, sta ? sta->addr : bcast_addr, ret); - spin_lock(&todo_lock); + spin_lock_bh(&todo_lock); key->flags &= ~KEY_FLAG_UPLOADED_TO_HARDWARE; - spin_unlock(&todo_lock); + spin_unlock_bh(&todo_lock); } static void __ieee80211_set_default_key(struct ieee80211_sub_if_data *sdata, @@ -437,14 +439,14 @@ void ieee80211_key_link(struct ieee80211_key *key, __ieee80211_key_replace(sdata, sta, old_key, key); - spin_unlock_irqrestore(&sdata->local->key_lock, flags); - /* free old key later */ add_todo(old_key, KEY_FLAG_TODO_DELETE); add_todo(key, KEY_FLAG_TODO_ADD_DEBUGFS); if (netif_running(sdata->dev)) add_todo(key, KEY_FLAG_TODO_HWACCEL_ADD); + + spin_unlock_irqrestore(&sdata->local->key_lock, flags); } static void __ieee80211_key_free(struct ieee80211_key *key) @@ -547,7 +549,7 @@ static void __ieee80211_key_todo(void) */ synchronize_rcu(); - spin_lock(&todo_lock); + spin_lock_bh(&todo_lock); while (!list_empty(&todo_list)) { key = list_first_entry(&todo_list, struct ieee80211_key, todo); list_del_init(&key->todo); @@ -558,7 +560,7 @@ static void __ieee80211_key_todo(void) KEY_FLAG_TODO_HWACCEL_REMOVE | KEY_FLAG_TODO_DELETE); key->flags &= ~todoflags; - spin_unlock(&todo_lock); + spin_unlock_bh(&todo_lock); work_done = false; @@ -591,9 +593,9 @@ static void __ieee80211_key_todo(void) WARN_ON(!work_done); - spin_lock(&todo_lock); + spin_lock_bh(&todo_lock); } - spin_unlock(&todo_lock); + spin_unlock_bh(&todo_lock); } void ieee80211_key_todo(void) -- cgit v0.10.2 From 518ff04fd84290a7ad9042e8a46d78d29cb443d3 Mon Sep 17 00:00:00 2001 From: "John W. Linville" Date: Mon, 17 Aug 2009 12:09:26 -0400 Subject: orinoco: correct key bounds check in orinoco_hw_get_tkip_iv If key is 4 that is an array out of bounds. Reported-by: Dan Carpenter Signed-off-by: John W. Linville diff --git a/drivers/net/wireless/orinoco/hw.c b/drivers/net/wireless/orinoco/hw.c index 632fac8..b394627 100644 --- a/drivers/net/wireless/orinoco/hw.c +++ b/drivers/net/wireless/orinoco/hw.c @@ -70,7 +70,7 @@ int orinoco_hw_get_tkip_iv(struct orinoco_private *priv, int key, u8 *tsc) int err = 0; u8 tsc_arr[4][IW_ENCODE_SEQ_MAX_SIZE]; - if ((key < 0) || (key > 4)) + if ((key < 0) || (key >= 4)) return -EINVAL; err = hermes_read_ltv(hw, USER_BAP, HERMES_RID_CURRENT_TKIP_IV, -- cgit v0.10.2 From ada508274b8698a33cb0e5bd037db0f9dc781795 Mon Sep 17 00:00:00 2001 From: Jan Kara Date: Mon, 3 Aug 2009 18:24:21 +0200 Subject: ocfs2: Handle quota file corruption more gracefully ocfs2_read_virt_blocks() does BUG when we try to read a block from a file beyond its end. Since this can happen due to filesystem corruption, it is not really an appropriate answer. Make ocfs2_read_quota_block() check the condition and handle it by calling ocfs2_error() and returning EIO. [ Modified to print ip_blkno in the error - Joel ] Reported-by: Tristan Ye Signed-off-by: Jan Kara Signed-off-by: Joel Becker diff --git a/fs/ocfs2/quota_global.c b/fs/ocfs2/quota_global.c index bf7742d..44f2a5e 100644 --- a/fs/ocfs2/quota_global.c +++ b/fs/ocfs2/quota_global.c @@ -23,6 +23,7 @@ #include "sysfile.h" #include "dlmglue.h" #include "uptodate.h" +#include "super.h" #include "quota.h" static struct workqueue_struct *ocfs2_quota_wq = NULL; @@ -114,6 +115,15 @@ int ocfs2_read_quota_block(struct inode *inode, u64 v_block, int rc = 0; struct buffer_head *tmp = *bh; + if (i_size_read(inode) >> inode->i_sb->s_blocksize_bits <= v_block) { + ocfs2_error(inode->i_sb, + "Quota file %llu is probably corrupted! Requested " + "to read block %Lu but file has size only %Lu\n", + (unsigned long long)OCFS2_I(inode)->ip_blkno, + (unsigned long long)v_block, + (unsigned long long)i_size_read(inode)); + return -EIO; + } rc = ocfs2_read_virt_blocks(inode, v_block, 1, &tmp, 0, ocfs2_validate_quota_block); if (rc) -- cgit v0.10.2 From 60e2ec48665b8495360ca4a6004c5cd52beb2bc1 Mon Sep 17 00:00:00 2001 From: Tao Ma Date: Wed, 12 Aug 2009 14:42:47 +0800 Subject: ocfs2: release the buffer head in ocfs2_do_truncate. In ocfs2_do_truncate, we forget to release last_eb_bh which will cause memleak. So call brelse in the end. Signed-off-by: Tao Ma Signed-off-by: Joel Becker diff --git a/fs/ocfs2/alloc.c b/fs/ocfs2/alloc.c index f9a3e89..ab513dd 100644 --- a/fs/ocfs2/alloc.c +++ b/fs/ocfs2/alloc.c @@ -6851,7 +6851,7 @@ static int ocfs2_do_truncate(struct ocfs2_super *osb, } status = 0; bail: - + brelse(last_eb_bh); mlog_exit(status); return status; } -- cgit v0.10.2 From eef3a116be11d35396efb2a8cc7345fd3221e294 Mon Sep 17 00:00:00 2001 From: Eric Paris Date: Sun, 16 Aug 2009 21:51:44 -0400 Subject: notify: unused event private race inotify decides if private data it passed to get added to an event was used by checking list_empty(). But it's possible that the event may have been dequeued and the private event removed so it would look empty. The fix is to use the return code from fsnotify_add_notify_event rather than looking at the list. Signed-off-by: Eric Paris Signed-off-by: Linus Torvalds diff --git a/fs/notify/inotify/inotify_fsnotify.c b/fs/notify/inotify/inotify_fsnotify.c index 47cd258..5dcbafe 100644 --- a/fs/notify/inotify/inotify_fsnotify.c +++ b/fs/notify/inotify/inotify_fsnotify.c @@ -62,13 +62,14 @@ static int inotify_handle_event(struct fsnotify_group *group, struct fsnotify_ev event_priv->wd = wd; ret = fsnotify_add_notify_event(group, event, fsn_event_priv); - /* EEXIST is not an error */ - if (ret == -EEXIST) - ret = 0; - - /* did event_priv get attached? */ - if (list_empty(&fsn_event_priv->event_list)) + if (ret) { inotify_free_event_priv(fsn_event_priv); + /* EEXIST says we tail matched, EOVERFLOW isn't something + * to report up the stack. */ + if ((ret == -EEXIST) || + (ret == -EOVERFLOW)) + ret = 0; + } /* * If we hold the entry until after the event is on the queue diff --git a/fs/notify/inotify/inotify_user.c b/fs/notify/inotify/inotify_user.c index f30d9bb..c172a7a 100644 --- a/fs/notify/inotify/inotify_user.c +++ b/fs/notify/inotify/inotify_user.c @@ -386,6 +386,7 @@ void inotify_ignored_and_remove_idr(struct fsnotify_mark_entry *entry, struct fsnotify_event *ignored_event; struct inotify_event_private_data *event_priv; struct fsnotify_event_private_data *fsn_event_priv; + int ret; ignored_event = fsnotify_create_event(NULL, FS_IN_IGNORED, NULL, FSNOTIFY_EVENT_NONE, NULL, 0, @@ -404,10 +405,8 @@ void inotify_ignored_and_remove_idr(struct fsnotify_mark_entry *entry, fsn_event_priv->group = group; event_priv->wd = ientry->wd; - fsnotify_add_notify_event(group, ignored_event, fsn_event_priv); - - /* did the private data get added? */ - if (list_empty(&fsn_event_priv->event_list)) + ret = fsnotify_add_notify_event(group, ignored_event, fsn_event_priv); + if (ret) inotify_free_event_priv(fsn_event_priv); skip_send_ignore: diff --git a/fs/notify/notification.c b/fs/notify/notification.c index 5213685..74b3cf3 100644 --- a/fs/notify/notification.c +++ b/fs/notify/notification.c @@ -171,9 +171,7 @@ int fsnotify_add_notify_event(struct fsnotify_group *group, struct fsnotify_even struct list_head *list = &group->notification_list; struct fsnotify_event_holder *last_holder; struct fsnotify_event *last_event; - - /* easy to tell if priv was attached to the event */ - INIT_LIST_HEAD(&priv->event_list); + int ret = 0; /* * There is one fsnotify_event_holder embedded inside each fsnotify_event. @@ -194,6 +192,7 @@ alloc_holder: if (group->q_len >= group->max_events) { event = &q_overflow_event; + ret = -EOVERFLOW; /* sorry, no private data on the overflow event */ priv = NULL; } @@ -235,7 +234,7 @@ alloc_holder: mutex_unlock(&group->notification_mutex); wake_up(&group->notification_waitq); - return 0; + return ret; } /* -- cgit v0.10.2 From cd94c8bbef8d4b796a7ed4c551355a334604fd36 Mon Sep 17 00:00:00 2001 From: Eric Paris Date: Sun, 16 Aug 2009 21:51:49 -0400 Subject: inotify: tail drop inotify q_overflow events In f44aebcc the tail drop logic of events with no file backing (q_overflow and in_ignored) was reversed so IN_IGNORED events would never be tail dropped. This now means that Q_OVERFLOW events are NOT tail dropped. The fix is to not tail drop IN_IGNORED, but to tail drop Q_OVERFLOW. Signed-off-by: Eric Paris Signed-off-by: Linus Torvalds diff --git a/fs/notify/notification.c b/fs/notify/notification.c index 74b3cf3..3816d57 100644 --- a/fs/notify/notification.c +++ b/fs/notify/notification.c @@ -153,6 +153,10 @@ static bool event_compare(struct fsnotify_event *old, struct fsnotify_event *new return true; break; case (FSNOTIFY_EVENT_NONE): + if (old->mask & FS_Q_OVERFLOW) + return true; + else if (old->mask & FS_IN_IGNORED) + return false; return false; }; } -- cgit v0.10.2 From 08e53fcb0db34baca3db84a457b6d67faabee4c6 Mon Sep 17 00:00:00 2001 From: Eric Paris Date: Sun, 16 Aug 2009 21:51:55 -0400 Subject: inotify: start watch descriptor count at 1 The inotify_add_watch man page specifies that inotify_add_watch() will return a non-negative integer. However, historically the inotify watches started at 1, not at 0. Turns out that the inotifywait program provided by the inotify-tools package doesn't properly handle a 0 watch descriptor. In 7e790dd5 we changed from starting at 1 to starting at 0. This patch starts at 1, just like in previous kernels, but also just like in previous kernels it's possible for it to wrap back to 0. This preserves the kernel functionality exactly like it was before the patch (neither method broke the spec) Signed-off-by: Eric Paris Signed-off-by: Linus Torvalds diff --git a/fs/notify/inotify/inotify_user.c b/fs/notify/inotify/inotify_user.c index c172a7a..dc32ed8 100644 --- a/fs/notify/inotify/inotify_user.c +++ b/fs/notify/inotify/inotify_user.c @@ -567,7 +567,7 @@ static struct fsnotify_group *inotify_new_group(struct user_struct *user, unsign spin_lock_init(&group->inotify_data.idr_lock); idr_init(&group->inotify_data.idr); - group->inotify_data.last_wd = 0; + group->inotify_data.last_wd = 1; group->inotify_data.user = user; group->inotify_data.fa = NULL; -- cgit v0.10.2 From 1adcaafe7414c5731f758b158aa0525057225deb Mon Sep 17 00:00:00 2001 From: Suresh Siddha Date: Mon, 17 Aug 2009 13:23:50 -0700 Subject: x86, pat: Allow ISA memory range uncacheable mapping requests Max Vozeler reported: > Bug 13877 - bogl-term broken with CONFIG_X86_PAT=y, works with =n > > strace of bogl-term: > 814 mmap2(NULL, 65536, PROT_READ|PROT_WRITE, MAP_SHARED, 4, 0) > = -1 EAGAIN (Resource temporarily unavailable) > 814 write(2, "bogl: mmaping /dev/fb0: Resource temporarily unavailable\n", > 57) = 57 PAT code maps the ISA memory range as WB in the PAT attribute, so that fixed range MTRR registers define the actual memory type (UC/WC/WT etc). But the upper level is_new_memtype_allowed() API checks are failing, as the request here is for UC and the return tracked type is WB (Tracked type is WB as MTRR type for this legacy range potentially will be different for each 4k page). Fix is_new_memtype_allowed() by always succeeding the ISA address range checks, as the null PAT (WB) and def MTRR fixed range register settings satisfy the memory type needs of the applications that map the ISA address range. Reported-and-Tested-by: Max Vozeler Signed-off-by: Suresh Siddha Signed-off-by: Venkatesh Pallipadi Signed-off-by: H. Peter Anvin diff --git a/arch/x86/include/asm/pgtable.h b/arch/x86/include/asm/pgtable.h index 3cc06e3..1674807 100644 --- a/arch/x86/include/asm/pgtable.h +++ b/arch/x86/include/asm/pgtable.h @@ -2,6 +2,7 @@ #define _ASM_X86_PGTABLE_H #include +#include #include @@ -269,10 +270,17 @@ static inline pgprot_t pgprot_modify(pgprot_t oldprot, pgprot_t newprot) #define canon_pgprot(p) __pgprot(massage_pgprot(p)) -static inline int is_new_memtype_allowed(unsigned long flags, - unsigned long new_flags) +static inline int is_new_memtype_allowed(u64 paddr, unsigned long size, + unsigned long flags, + unsigned long new_flags) { /* + * PAT type is always WB for ISA. So no need to check. + */ + if (is_ISA_range(paddr, paddr + size - 1)) + return 1; + + /* * Certain new memtypes are not allowed with certain * requested memtype: * - request is uncached, return cannot be write-back diff --git a/arch/x86/mm/pat.c b/arch/x86/mm/pat.c index e6718bb..352aa9e 100644 --- a/arch/x86/mm/pat.c +++ b/arch/x86/mm/pat.c @@ -623,7 +623,8 @@ static int reserve_pfn_range(u64 paddr, unsigned long size, pgprot_t *vma_prot, return ret; if (flags != want_flags) { - if (strict_prot || !is_new_memtype_allowed(want_flags, flags)) { + if (strict_prot || + !is_new_memtype_allowed(paddr, size, want_flags, flags)) { free_memtype(paddr, paddr + size); printk(KERN_ERR "%s:%d map pfn expected mapping type %s" " for %Lx-%Lx, got %s\n", -- cgit v0.10.2 From 50fb6d2bd7062708892ae7147f30c3ee905b7a3d Mon Sep 17 00:00:00 2001 From: Abhishek Kulkarni Date: Sun, 19 Jul 2009 13:41:57 -0600 Subject: 9p: Check for error in return value of v9fs_fid_add Check if v9fs_fid_add was successful or not based on its return value. Signed-off-by: Abhishek Kulkarni Signed-off-by: Eric Van Hensbergen diff --git a/fs/9p/vfs_inode.c b/fs/9p/vfs_inode.c index 81f8bbf..1fa5f15 100644 --- a/fs/9p/vfs_inode.c +++ b/fs/9p/vfs_inode.c @@ -470,7 +470,10 @@ v9fs_create(struct v9fs_session_info *v9ses, struct inode *dir, dentry->d_op = &v9fs_dentry_operations; d_instantiate(dentry, inode); - v9fs_fid_add(dentry, fid); + err = v9fs_fid_add(dentry, fid); + if (err < 0) + goto error; + return ofid; error: -- cgit v0.10.2 From 2bb541157fe2602af7b9952096d0524f6f9c1e73 Mon Sep 17 00:00:00 2001 From: Abhishek Kulkarni Date: Sun, 19 Jul 2009 13:41:56 -0600 Subject: 9p: Fix possible inode leak in v9fs_get_inode. Add a missing iput when cleaning up if v9fs_get_inode fails after returning a valid inode. Signed-off-by: Abhishek Kulkarni Signed-off-by: Eric Van Hensbergen diff --git a/fs/9p/vfs_inode.c b/fs/9p/vfs_inode.c index 1fa5f15..0c8af1a 100644 --- a/fs/9p/vfs_inode.c +++ b/fs/9p/vfs_inode.c @@ -207,65 +207,72 @@ v9fs_blank_wstat(struct p9_wstat *wstat) struct inode *v9fs_get_inode(struct super_block *sb, int mode) { + int err; struct inode *inode; struct v9fs_session_info *v9ses = sb->s_fs_info; P9_DPRINTK(P9_DEBUG_VFS, "super block: %p mode: %o\n", sb, mode); inode = new_inode(sb); - if (inode) { - inode->i_mode = mode; - inode->i_uid = current_fsuid(); - inode->i_gid = current_fsgid(); - inode->i_blocks = 0; - inode->i_rdev = 0; - inode->i_atime = inode->i_mtime = inode->i_ctime = CURRENT_TIME; - inode->i_mapping->a_ops = &v9fs_addr_operations; - - switch (mode & S_IFMT) { - case S_IFIFO: - case S_IFBLK: - case S_IFCHR: - case S_IFSOCK: - if (!v9fs_extended(v9ses)) { - P9_DPRINTK(P9_DEBUG_ERROR, - "special files without extended mode\n"); - return ERR_PTR(-EINVAL); - } - init_special_inode(inode, inode->i_mode, - inode->i_rdev); - break; - case S_IFREG: - inode->i_op = &v9fs_file_inode_operations; - inode->i_fop = &v9fs_file_operations; - break; - case S_IFLNK: - if (!v9fs_extended(v9ses)) { - P9_DPRINTK(P9_DEBUG_ERROR, - "extended modes used w/o 9P2000.u\n"); - return ERR_PTR(-EINVAL); - } - inode->i_op = &v9fs_symlink_inode_operations; - break; - case S_IFDIR: - inc_nlink(inode); - if (v9fs_extended(v9ses)) - inode->i_op = &v9fs_dir_inode_operations_ext; - else - inode->i_op = &v9fs_dir_inode_operations; - inode->i_fop = &v9fs_dir_operations; - break; - default: + if (!inode) { + P9_EPRINTK(KERN_WARNING, "Problem allocating inode\n"); + return -ENOMEM; + } + + inode->i_mode = mode; + inode->i_uid = current_fsuid(); + inode->i_gid = current_fsgid(); + inode->i_blocks = 0; + inode->i_rdev = 0; + inode->i_atime = inode->i_mtime = inode->i_ctime = CURRENT_TIME; + inode->i_mapping->a_ops = &v9fs_addr_operations; + + switch (mode & S_IFMT) { + case S_IFIFO: + case S_IFBLK: + case S_IFCHR: + case S_IFSOCK: + if (!v9fs_extended(v9ses)) { P9_DPRINTK(P9_DEBUG_ERROR, - "BAD mode 0x%x S_IFMT 0x%x\n", - mode, mode & S_IFMT); - return ERR_PTR(-EINVAL); + "special files without extended mode\n"); + err = -EINVAL; + goto error; } - } else { - P9_EPRINTK(KERN_WARNING, "Problem allocating inode\n"); - return ERR_PTR(-ENOMEM); + init_special_inode(inode, inode->i_mode, inode->i_rdev); + break; + case S_IFREG: + inode->i_op = &v9fs_file_inode_operations; + inode->i_fop = &v9fs_file_operations; + break; + case S_IFLNK: + if (!v9fs_extended(v9ses)) { + P9_DPRINTK(P9_DEBUG_ERROR, + "extended modes used w/o 9P2000.u\n"); + err = -EINVAL; + goto error; + } + inode->i_op = &v9fs_symlink_inode_operations; + break; + case S_IFDIR: + inc_nlink(inode); + if (v9fs_extended(v9ses)) + inode->i_op = &v9fs_dir_inode_operations_ext; + else + inode->i_op = &v9fs_dir_inode_operations; + inode->i_fop = &v9fs_dir_operations; + break; + default: + P9_DPRINTK(P9_DEBUG_ERROR, "BAD mode 0x%x S_IFMT 0x%x\n", + mode, mode & S_IFMT); + err = -EINVAL; + goto error; } + return inode; + +error: + iput(inode); + return ERR_PTR(err); } /* -- cgit v0.10.2 From 0e15597ebfe00e28857185f46aba00f400480ffe Mon Sep 17 00:00:00 2001 From: Abhishek Kulkarni Date: Sun, 19 Jul 2009 13:41:55 -0600 Subject: 9p: minor comment fixes Fix the comments -- mostly the improper and/or missing descriptions of function parameters. Signed-off-by: Abhishek Kulkarni Signed-off-by: Eric Van Hensbergen diff --git a/fs/9p/vfs_inode.c b/fs/9p/vfs_inode.c index 0c8af1a..f22668a 100644 --- a/fs/9p/vfs_inode.c +++ b/fs/9p/vfs_inode.c @@ -171,7 +171,6 @@ int v9fs_uflags2omode(int uflags, int extended) /** * v9fs_blank_wstat - helper function to setup a 9P stat structure - * @v9ses: 9P session info (for determining extended mode) * @wstat: structure to initialize * */ @@ -410,9 +409,9 @@ v9fs_open_created(struct inode *inode, struct file *file) * @v9ses: session information * @dir: directory that dentry is being created in * @dentry: dentry that is being created + * @extension: 9p2000.u extension string to support devices, etc. * @perm: create permissions * @mode: open mode - * @extension: 9p2000.u extension string to support devices, etc. * */ static struct p9_fid * diff --git a/net/9p/client.c b/net/9p/client.c index 787ccdd..7bbd2d5 100644 --- a/net/9p/client.c +++ b/net/9p/client.c @@ -60,9 +60,9 @@ static struct p9_req_t * p9_client_rpc(struct p9_client *c, int8_t type, const char *fmt, ...); /** - * v9fs_parse_options - parse mount options into session structure - * @options: options string passed from mount - * @v9ses: existing v9fs session information + * parse_options - parse mount options into client structure + * @opts: options string passed from mount + * @clnt: existing v9fs client information * * Return 0 upon success, -ERRNO upon failure */ @@ -232,7 +232,7 @@ EXPORT_SYMBOL(p9_tag_lookup); /** * p9_tag_init - setup tags structure and contents - * @tags: tags structure from the client struct + * @c: v9fs client struct * * This initializes the tags structure for each client instance. * @@ -258,7 +258,7 @@ error: /** * p9_tag_cleanup - cleans up tags structure and reclaims resources - * @tags: tags structure from the client struct + * @c: v9fs client struct * * This frees resources associated with the tags structure * @@ -430,8 +430,8 @@ static int p9_check_errors(struct p9_client *c, struct p9_req_t *req) /** * p9_client_flush - flush (cancel) a request - * c: client state - * req: request to cancel + * @c: client state + * @oldreq: request to cancel * * This sents a flush for a particular requests and links * the flush request to the original request. The current diff --git a/net/9p/trans_fd.c b/net/9p/trans_fd.c index 8c2588e..8d934dd 100644 --- a/net/9p/trans_fd.c +++ b/net/9p/trans_fd.c @@ -119,8 +119,8 @@ struct p9_poll_wait { * @wpos: write position for current frame * @wsize: amount of data to write for current frame * @wbuf: current write buffer + * @poll_pending_link: pending links to be polled per conn * @poll_wait: array of wait_q's for various worker threads - * @poll_waddr: ???? * @pt: poll state * @rq: current read work * @wq: current write work @@ -700,9 +700,9 @@ static int p9_fd_cancel(struct p9_client *client, struct p9_req_t *req) } /** - * parse_options - parse mount options into session structure - * @options: options string passed from mount - * @opts: transport-specific structure to parse options into + * parse_opts - parse mount options into p9_fd_opts structure + * @params: options string passed from mount + * @opts: fd transport-specific structure to parse options into * * Returns 0 upon success, -ERRNO upon failure */ diff --git a/net/9p/trans_rdma.c b/net/9p/trans_rdma.c index ac49900..65cb29d 100644 --- a/net/9p/trans_rdma.c +++ b/net/9p/trans_rdma.c @@ -67,14 +67,15 @@ * @pd: Protection Domain pointer * @qp: Queue Pair pointer * @cq: Completion Queue pointer + * @dm_mr: DMA Memory Region pointer * @lkey: The local access only memory region key * @timeout: Number of uSecs to wait for connection management events * @sq_depth: The depth of the Send Queue * @sq_sem: Semaphore for the SQ * @rq_depth: The depth of the Receive Queue. + * @rq_count: Count of requests in the Receive Queue. * @addr: The remote peer's address * @req_lock: Protects the active request list - * @send_wait: Wait list when the SQ fills up * @cm_done: Completion event for connection management tracking */ struct p9_trans_rdma { @@ -154,9 +155,9 @@ static match_table_t tokens = { }; /** - * parse_options - parse mount options into session structure - * @options: options string passed from mount - * @opts: transport-specific structure to parse options into + * parse_opts - parse mount options into rdma options structure + * @params: options string passed from mount + * @opts: rdma transport-specific structure to parse options into * * Returns 0 upon success, -ERRNO upon failure */ diff --git a/net/9p/trans_virtio.c b/net/9p/trans_virtio.c index a49484e..9bf0b73 100644 --- a/net/9p/trans_virtio.c +++ b/net/9p/trans_virtio.c @@ -57,11 +57,9 @@ static int chan_index; * @initialized: whether the channel is initialized * @inuse: whether the channel is in use * @lock: protects multiple elements within this structure + * @client: client instance * @vdev: virtio dev associated with this channel * @vq: virtio queue associated with this channel - * @tagpool: accounting for tag ids (and request slots) - * @reqs: array of request slots - * @max_tag: current number of request_slots allocated * @sg: scatter gather list which is used to pack a request (protected?) * * We keep all per-channel information in a structure. @@ -92,7 +90,7 @@ static unsigned int rest_of_page(void *data) /** * p9_virtio_close - reclaim resources of a channel - * @trans: transport state + * @client: client instance * * This reclaims a channel by freeing its resources and * reseting its inuse flag. @@ -181,9 +179,8 @@ static int p9_virtio_cancel(struct p9_client *client, struct p9_req_t *req) /** * p9_virtio_request - issue a request - * @t: transport state - * @tc: &p9_fcall request to transmit - * @rc: &p9_fcall to put reponse into + * @client: client instance issuing the request + * @req: request to be issued * */ -- cgit v0.10.2 From 02bc35672b2fdf251e264adca5407792f63191e4 Mon Sep 17 00:00:00 2001 From: Abhishek Kulkarni Date: Sun, 19 Jul 2009 13:41:54 -0600 Subject: 9p: Fix possible memleak in v9fs_inode_from fid. Add missing p9stat_free in v9fs_inode_from_fid to avoid any possible leaks. Signed-off-by: Abhishek Kulkarni Signed-off-by: Eric Van Hensbergen diff --git a/fs/9p/vfs_inode.c b/fs/9p/vfs_inode.c index f22668a..fac30d2 100644 --- a/fs/9p/vfs_inode.c +++ b/fs/9p/vfs_inode.c @@ -344,30 +344,25 @@ v9fs_inode_from_fid(struct v9fs_session_info *v9ses, struct p9_fid *fid, ret = NULL; st = p9_client_stat(fid); - if (IS_ERR(st)) { - err = PTR_ERR(st); - st = NULL; - goto error; - } + if (IS_ERR(st)) + return ERR_CAST(st); umode = p9mode2unixmode(v9ses, st->mode); ret = v9fs_get_inode(sb, umode); if (IS_ERR(ret)) { err = PTR_ERR(ret); - ret = NULL; goto error; } v9fs_stat2inode(st, ret, sb); ret->i_ino = v9fs_qid2ino(&st->qid); + p9stat_free(st); kfree(st); return ret; error: + p9stat_free(st); kfree(st); - if (ret) - iput(ret); - return ERR_PTR(err); } -- cgit v0.10.2 From 4f4038328da5eb9cc237b51d3fe68138fd3fea14 Mon Sep 17 00:00:00 2001 From: Abhishek Kulkarni Date: Sun, 19 Jul 2009 13:41:53 -0600 Subject: 9p: Fix v9fs show_options Add the delimiter ',' before the options when they are passed and check if no option parameters are passed to prevent displaying NULL in /proc/mounts. Signed-off-by: Abhishek Kulkarni Signed-off-by: Eric Van Hensbergen diff --git a/fs/9p/vfs_super.c b/fs/9p/vfs_super.c index 38d695d..a9d7d08 100644 --- a/fs/9p/vfs_super.c +++ b/fs/9p/vfs_super.c @@ -220,8 +220,8 @@ static void v9fs_kill_super(struct super_block *s) static int v9fs_show_options(struct seq_file *m, struct vfsmount *mnt) { struct v9fs_session_info *v9ses = mnt->mnt_sb->s_fs_info; - - seq_printf(m, "%s", v9ses->options); + if (v9ses->options != NULL) + seq_printf(m, ",%s", v9ses->options); return 0; } -- cgit v0.10.2 From 1b5ab3e86712b6be38ebbe0d821387c1d8f91d7c Mon Sep 17 00:00:00 2001 From: Abhishek Kulkarni Date: Sun, 19 Jul 2009 13:41:52 -0600 Subject: 9p: Fix possible regressions when ->get_sb fails. ->get_sb can fail causing some badness. this patch fixes * clear sb->fs_s_info in kill_sb. * deactivate_locked_super() calls kill_sb (v9fs_kill_super) which closes the destroys the client, clunks all its fids and closes the v9fs session. Attempting to do it twice will cause an oops. Signed-off-by: Abhishek Kulkarni Signed-off-by: Eric Van Hensbergen diff --git a/fs/9p/vfs_super.c b/fs/9p/vfs_super.c index a9d7d08..2495af4 100644 --- a/fs/9p/vfs_super.c +++ b/fs/9p/vfs_super.c @@ -120,7 +120,6 @@ static int v9fs_get_sb(struct file_system_type *fs_type, int flags, P9_DPRINTK(P9_DEBUG_VFS, " \n"); - st = NULL; v9ses = kzalloc(sizeof(struct v9fs_session_info), GFP_KERNEL); if (!v9ses) return -ENOMEM; @@ -173,10 +172,8 @@ P9_DPRINTK(P9_DEBUG_VFS, " simple set mount, return 0\n"); simple_set_mnt(mnt, sb); return 0; -release_sb: - deactivate_locked_super(sb); - free_stat: + p9stat_free(st); kfree(st); clunk_fid: @@ -185,7 +182,12 @@ clunk_fid: close_session: v9fs_session_close(v9ses); kfree(v9ses); + return retval; +release_sb: + p9stat_free(st); + kfree(st); + deactivate_locked_super(sb); return retval; } @@ -207,6 +209,7 @@ static void v9fs_kill_super(struct super_block *s) v9fs_session_close(v9ses); kfree(v9ses); + s->s_fs_info = NULL; P9_DPRINTK(P9_DEBUG_VFS, "exiting kill_super\n"); } -- cgit v0.10.2 From 4d3297ca5bf37ff5956f76fb352e009880aad62d Mon Sep 17 00:00:00 2001 From: Abhishek Kulkarni Date: Sun, 19 Jul 2009 13:41:51 -0600 Subject: 9p: Remove redundant inode uid/gid assignment Remove a redundant update of inode's i_uid and i_gid after v9fs_get_inode() since the latter already sets up a new inode and sets the proper uid and gid values. Signed-off-by: Abhishek Kulkarni Signed-off-by: Eric Van Hensbergen diff --git a/fs/9p/vfs_super.c b/fs/9p/vfs_super.c index 2495af4..072dce09 100644 --- a/fs/9p/vfs_super.c +++ b/fs/9p/vfs_super.c @@ -113,8 +113,6 @@ static int v9fs_get_sb(struct file_system_type *fs_type, int flags, struct v9fs_session_info *v9ses = NULL; struct p9_wstat *st = NULL; int mode = S_IRWXUGO | S_ISVTX; - uid_t uid = current_fsuid(); - gid_t gid = current_fsgid(); struct p9_fid *fid; int retval = 0; @@ -149,9 +147,6 @@ static int v9fs_get_sb(struct file_system_type *fs_type, int flags, goto release_sb; } - inode->i_uid = uid; - inode->i_gid = gid; - root = d_alloc_root(inode); if (!root) { iput(inode); -- cgit v0.10.2 From 5fd131893793567c361ae64cbeb28a2a753bbe35 Mon Sep 17 00:00:00 2001 From: Jan Kara Date: Thu, 30 Jul 2009 17:01:53 +0200 Subject: ocfs2: Don't oops in ocfs2_kill_sb on a failed mount If we fail to mount the filesystem, we have to be careful not to dereference uninitialized structures in ocfs2_kill_sb. Signed-off-by: Jan Kara Signed-off-by: Joel Becker diff --git a/fs/ocfs2/super.c b/fs/ocfs2/super.c index b0ee0fd..a3f8871 100644 --- a/fs/ocfs2/super.c +++ b/fs/ocfs2/super.c @@ -1218,13 +1218,17 @@ static void ocfs2_kill_sb(struct super_block *sb) { struct ocfs2_super *osb = OCFS2_SB(sb); + /* Failed mount? */ + if (!osb || atomic_read(&osb->vol_state) == VOLUME_DISABLED) + goto out; + /* Prevent further queueing of inode drop events */ spin_lock(&dentry_list_lock); ocfs2_set_osb_flag(osb, OCFS2_OSB_DROP_DENTRY_LOCK_IMMED); spin_unlock(&dentry_list_lock); /* Wait for work to finish and/or remove it */ cancel_work_sync(&osb->dentry_lock_work); - +out: kill_block_super(sb); } -- cgit v0.10.2 From 48559b4c30708ebdc849483da9fb83ee08c6c908 Mon Sep 17 00:00:00 2001 From: Abhishek Kulkarni Date: Mon, 17 Aug 2009 16:32:18 -0500 Subject: 9p: Add missing cast for the error return value in v9fs_get_inode Cast the error return value (ENOMEM) in v9fs_get_inode() to its correct type using ERR_PTR. Signed-off-by: Abhishek Kulkarni Signed-off-by: Eric Van Hensbergen diff --git a/fs/9p/vfs_inode.c b/fs/9p/vfs_inode.c index fac30d2..06a223d 100644 --- a/fs/9p/vfs_inode.c +++ b/fs/9p/vfs_inode.c @@ -215,7 +215,7 @@ struct inode *v9fs_get_inode(struct super_block *sb, int mode) inode = new_inode(sb); if (!inode) { P9_EPRINTK(KERN_WARNING, "Problem allocating inode\n"); - return -ENOMEM; + return ERR_PTR(-ENOMEM); } inode->i_mode = mode; -- cgit v0.10.2 From 0aad37ef3deed118d3816e1d1a600eb2ec9dcb87 Mon Sep 17 00:00:00 2001 From: Abhishek Kulkarni Date: Mon, 17 Aug 2009 16:38:45 -0500 Subject: net/9p: insulate the client against an invalid error code sent by a 9p server A looney tunes server sending an invalid error code (which is !IS_ERR_VALUE) can result in a client oops. So fix it by adding a check and converting unknown or invalid error codes to -ESERVERFAULT. Signed-off-by: Abhishek Kulkarni Signed-off-by: Eric Van Hensbergen diff --git a/net/9p/client.c b/net/9p/client.c index 7bbd2d5..5bf5f22 100644 --- a/net/9p/client.c +++ b/net/9p/client.c @@ -411,14 +411,9 @@ static int p9_check_errors(struct p9_client *c, struct p9_req_t *req) if (c->dotu) err = -ecode; - if (!err) { + if (!err || !IS_ERR_VALUE(err)) err = p9_errstr2errno(ename, strlen(ename)); - /* string match failed */ - if (!err) - err = -ESERVERFAULT; - } - P9_DPRINTK(P9_DEBUG_9P, "<<< RERROR (%d) %s\n", -ecode, ename); kfree(ename); diff --git a/net/9p/error.c b/net/9p/error.c index fdebe43..5251851 100644 --- a/net/9p/error.c +++ b/net/9p/error.c @@ -239,7 +239,7 @@ int p9_errstr2errno(char *errstr, int len) errstr[len] = 0; printk(KERN_ERR "%s: server reported unknown error %s\n", __func__, errstr); - errno = 1; + errno = ESERVERFAULT; } return -errno; -- cgit v0.10.2 From 4b53e4b500779230aedd5355940aeaaed0b5353b Mon Sep 17 00:00:00 2001 From: Abhishek Kulkarni Date: Mon, 17 Aug 2009 16:42:28 -0500 Subject: 9p: remove unnecessary v9fses->options which duplicates the mount string The mount options string is saved in sb->s_options. This patch removes the redundant duplicating of the mount options. Also, since we are not displaying anything special in show options, we replace v9fs_show_options with generic_show_options for now. Signed-off-by: Abhishek Kulkarni Signed-off-by: Eric Van Hensbergen diff --git a/fs/9p/v9fs.c b/fs/9p/v9fs.c index 332b5ff0..f7003cf 100644 --- a/fs/9p/v9fs.c +++ b/fs/9p/v9fs.c @@ -76,7 +76,7 @@ static const match_table_t tokens = { * Return 0 upon success, -ERRNO upon failure. */ -static int v9fs_parse_options(struct v9fs_session_info *v9ses) +static int v9fs_parse_options(struct v9fs_session_info *v9ses, char *opts) { char *options; substring_t args[MAX_OPT_ARGS]; @@ -90,10 +90,10 @@ static int v9fs_parse_options(struct v9fs_session_info *v9ses) v9ses->debug = 0; v9ses->cache = 0; - if (!v9ses->options) + if (!opts) return 0; - options = kstrdup(v9ses->options, GFP_KERNEL); + options = kstrdup(opts, GFP_KERNEL); if (!options) { P9_DPRINTK(P9_DEBUG_ERROR, "failed to allocate copy of option string\n"); @@ -206,24 +206,14 @@ struct p9_fid *v9fs_session_init(struct v9fs_session_info *v9ses, v9ses->uid = ~0; v9ses->dfltuid = V9FS_DEFUID; v9ses->dfltgid = V9FS_DEFGID; - if (data) { - v9ses->options = kstrdup(data, GFP_KERNEL); - if (!v9ses->options) { - P9_DPRINTK(P9_DEBUG_ERROR, - "failed to allocate copy of option string\n"); - retval = -ENOMEM; - goto error; - } - } - rc = v9fs_parse_options(v9ses); + rc = v9fs_parse_options(v9ses, data); if (rc < 0) { retval = rc; goto error; } - v9ses->clnt = p9_client_create(dev_name, v9ses->options); - + v9ses->clnt = p9_client_create(dev_name, data); if (IS_ERR(v9ses->clnt)) { retval = PTR_ERR(v9ses->clnt); v9ses->clnt = NULL; @@ -280,7 +270,6 @@ void v9fs_session_close(struct v9fs_session_info *v9ses) __putname(v9ses->uname); __putname(v9ses->aname); - kfree(v9ses->options); } /** diff --git a/fs/9p/v9fs.h b/fs/9p/v9fs.h index a7d5671..38762bf 100644 --- a/fs/9p/v9fs.h +++ b/fs/9p/v9fs.h @@ -85,7 +85,6 @@ struct v9fs_session_info { unsigned int afid; unsigned int cache; - char *options; /* copy of mount options */ char *uname; /* user name to mount as */ char *aname; /* name of remote hierarchy being mounted */ unsigned int maxdata; /* max data for client interface */ diff --git a/fs/9p/vfs_super.c b/fs/9p/vfs_super.c index 072dce09..8961f1a 100644 --- a/fs/9p/vfs_super.c +++ b/fs/9p/vfs_super.c @@ -81,7 +81,7 @@ static int v9fs_set_super(struct super_block *s, void *data) static void v9fs_fill_super(struct super_block *sb, struct v9fs_session_info *v9ses, - int flags) + int flags, void *data) { sb->s_maxbytes = MAX_LFS_FILESIZE; sb->s_blocksize_bits = fls(v9ses->maxdata - 1); @@ -91,6 +91,8 @@ v9fs_fill_super(struct super_block *sb, struct v9fs_session_info *v9ses, sb->s_flags = flags | MS_ACTIVE | MS_SYNCHRONOUS | MS_DIRSYNC | MS_NOATIME; + + save_mount_options(sb, data); } /** @@ -139,7 +141,7 @@ static int v9fs_get_sb(struct file_system_type *fs_type, int flags, retval = PTR_ERR(sb); goto free_stat; } - v9fs_fill_super(sb, v9ses, flags); + v9fs_fill_super(sb, v9ses, flags, data); inode = v9fs_get_inode(sb, S_IFDIR | mode); if (IS_ERR(inode)) { @@ -208,21 +210,6 @@ static void v9fs_kill_super(struct super_block *s) P9_DPRINTK(P9_DEBUG_VFS, "exiting kill_super\n"); } -/** - * v9fs_show_options - Show mount options in /proc/mounts - * @m: seq_file to write to - * @mnt: mount descriptor - * - */ - -static int v9fs_show_options(struct seq_file *m, struct vfsmount *mnt) -{ - struct v9fs_session_info *v9ses = mnt->mnt_sb->s_fs_info; - if (v9ses->options != NULL) - seq_printf(m, ",%s", v9ses->options); - return 0; -} - static void v9fs_umount_begin(struct super_block *sb) { @@ -235,7 +222,7 @@ v9fs_umount_begin(struct super_block *sb) static const struct super_operations v9fs_super_ops = { .statfs = simple_statfs, .clear_inode = v9fs_clear_inode, - .show_options = v9fs_show_options, + .show_options = generic_show_options, .umount_begin = v9fs_umount_begin, }; -- cgit v0.10.2 From 7815f4be4026b6c5027058102ae67a4b9feffa5f Mon Sep 17 00:00:00 2001 From: Eric Van Hensbergen Date: Mon, 17 Aug 2009 16:49:44 -0500 Subject: 9p: update documentation pointers Signed-off-by: Eric Van Hensbergen diff --git a/Documentation/filesystems/9p.txt b/Documentation/filesystems/9p.txt index bf80806..6208f55 100644 --- a/Documentation/filesystems/9p.txt +++ b/Documentation/filesystems/9p.txt @@ -123,6 +123,9 @@ available from the same CVS repository. There are user and developer mailing lists available through the v9fs project on sourceforge (http://sourceforge.net/projects/v9fs). +A stand-alone version of the module (which should build for any 2.6 kernel) +is available via (http://github.com/ericvh/9p-sac/tree/master) + News and other information is maintained on SWiK (http://swik.net/v9fs). Bug reports may be issued through the kernel.org bugzilla -- cgit v0.10.2 From f2d84b65b9778e8a35dd904f7d3993f0a60c9756 Mon Sep 17 00:00:00 2001 From: Zhaolei Date: Fri, 7 Aug 2009 18:55:48 +0800 Subject: ftrace: Unify effect of writing to trace_options and option/* "echo noglobal-clock > trace_options" can be used to change trace clock but "echo 0 > options/global-clock" can't. The flag toggling will be silently accepted without actually changing the clock callback. We can fix it by using set_tracer_flags() in trace_options_core_write(). Changelog: v1->v2: Simplified switch() after Li Zefan 's suggestion Signed-off-by: Zhao Lei Cc: Steven Rostedt Cc: Li Zefan Signed-off-by: Frederic Weisbecker diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c index c22b40f..8c35839 100644 --- a/kernel/trace/trace.c +++ b/kernel/trace/trace.c @@ -3896,17 +3896,9 @@ trace_options_core_write(struct file *filp, const char __user *ubuf, size_t cnt, if (ret < 0) return ret; - switch (val) { - case 0: - trace_flags &= ~(1 << index); - break; - case 1: - trace_flags |= 1 << index; - break; - - default: + if (val != 0 && val != 1) return -EINVAL; - } + set_tracer_flags(1 << index, val); *ppos += cnt; -- cgit v0.10.2 From 80ffb3cceaefa405f2ecd46d66500ed8d53efe74 Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Tue, 18 Aug 2009 10:35:26 +1000 Subject: Fix new incorrect error return from do_md_stop. Recent commit c8c00a6915a2e3d10416e8bdd3138429beb96210 changed the exit paths in do_md_stop and was not quite careful enough. There is one path were 'err' now needs to be cleared but it isn't. So setting an array to readonly (with mdadm --readonly) will work, but will incorrectly report and error: ENXIO. Signed-off-by: NeilBrown diff --git a/drivers/md/md.c b/drivers/md/md.c index 103f2d3..9dd8720 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -4364,6 +4364,7 @@ static int do_md_stop(mddev_t * mddev, int mode, int is_open) if (mode == 1) set_disk_ro(disk, 1); clear_bit(MD_RECOVERY_FROZEN, &mddev->recovery); + err = 0; } out: mutex_unlock(&mddev->open_mutex); -- cgit v0.10.2 From c6ba973b8fa97422aab4204f7d79f1d413cde925 Mon Sep 17 00:00:00 2001 From: Ralf Baechle Date: Mon, 17 Aug 2009 18:05:32 -0700 Subject: NETROM: Fix use of static buffer The static variable used by nr_call_to_digi might result in corruption if multiple threads are trying to usee a node or neighbour via ioctl. Fixed by having the caller pass a structure in. This is safe because nr_add_node rsp. nr_add_neigh will allocate a permanent structure, if needed. Signed-off-by: Ralf Baechle Signed-off-by: David S. Miller diff --git a/net/netrom/nr_route.c b/net/netrom/nr_route.c index e943c16..4eb1ac9 100644 --- a/net/netrom/nr_route.c +++ b/net/netrom/nr_route.c @@ -630,23 +630,23 @@ out: return dev; } -static ax25_digi *nr_call_to_digi(int ndigis, ax25_address *digipeaters) +static ax25_digi *nr_call_to_digi(ax25_digi *digi, int ndigis, + ax25_address *digipeaters) { - static ax25_digi ax25_digi; int i; if (ndigis == 0) return NULL; for (i = 0; i < ndigis; i++) { - ax25_digi.calls[i] = digipeaters[i]; - ax25_digi.repeated[i] = 0; + digi->calls[i] = digipeaters[i]; + digi->repeated[i] = 0; } - ax25_digi.ndigi = ndigis; - ax25_digi.lastrepeat = -1; + digi->ndigi = ndigis; + digi->lastrepeat = -1; - return &ax25_digi; + return digi; } /* @@ -656,6 +656,7 @@ int nr_rt_ioctl(unsigned int cmd, void __user *arg) { struct nr_route_struct nr_route; struct net_device *dev; + ax25_digi digi; int ret; switch (cmd) { @@ -673,13 +674,15 @@ int nr_rt_ioctl(unsigned int cmd, void __user *arg) ret = nr_add_node(&nr_route.callsign, nr_route.mnemonic, &nr_route.neighbour, - nr_call_to_digi(nr_route.ndigis, nr_route.digipeaters), + nr_call_to_digi(&digi, nr_route.ndigis, + nr_route.digipeaters), dev, nr_route.quality, nr_route.obs_count); break; case NETROM_NEIGH: ret = nr_add_neigh(&nr_route.callsign, - nr_call_to_digi(nr_route.ndigis, nr_route.digipeaters), + nr_call_to_digi(&digi, nr_route.ndigis, + nr_route.digipeaters), dev, nr_route.quality); break; default: -- cgit v0.10.2 From c1a8f1f1c8e01eab5862c8db39b49ace814e6c66 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Sun, 16 Aug 2009 09:36:49 +0000 Subject: net: restore gnet_stats_basic to previous definition In 5e140dfc1fe87eae27846f193086724806b33c7d "net: reorder struct Qdisc for better SMP performance" the definition of struct gnet_stats_basic changed incompatibly, as copies of this struct are shipped to userland via netlink. Restoring old behavior is not welcome, for performance reason. Fix is to use a private structure for kernel, and teach gnet_stats_copy_basic() to convert from kernel to user land, using legacy structure (struct gnet_stats_basic) Based on a report and initial patch from Michael Spang. Reported-by: Michael Spang Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller diff --git a/include/linux/gen_stats.h b/include/linux/gen_stats.h index 0ffa41d..710e901 100644 --- a/include/linux/gen_stats.h +++ b/include/linux/gen_stats.h @@ -22,6 +22,11 @@ struct gnet_stats_basic { __u64 bytes; __u32 packets; +}; +struct gnet_stats_basic_packed +{ + __u64 bytes; + __u32 packets; } __attribute__ ((packed)); /** diff --git a/include/net/act_api.h b/include/net/act_api.h index 565eed8..c05fd71 100644 --- a/include/net/act_api.h +++ b/include/net/act_api.h @@ -16,7 +16,7 @@ struct tcf_common { u32 tcfc_capab; int tcfc_action; struct tcf_t tcfc_tm; - struct gnet_stats_basic tcfc_bstats; + struct gnet_stats_basic_packed tcfc_bstats; struct gnet_stats_queue tcfc_qstats; struct gnet_stats_rate_est tcfc_rate_est; spinlock_t tcfc_lock; diff --git a/include/net/gen_stats.h b/include/net/gen_stats.h index d136b52..c148855 100644 --- a/include/net/gen_stats.h +++ b/include/net/gen_stats.h @@ -28,7 +28,7 @@ extern int gnet_stats_start_copy_compat(struct sk_buff *skb, int type, spinlock_t *lock, struct gnet_dump *d); extern int gnet_stats_copy_basic(struct gnet_dump *d, - struct gnet_stats_basic *b); + struct gnet_stats_basic_packed *b); extern int gnet_stats_copy_rate_est(struct gnet_dump *d, struct gnet_stats_rate_est *r); extern int gnet_stats_copy_queue(struct gnet_dump *d, @@ -37,14 +37,14 @@ extern int gnet_stats_copy_app(struct gnet_dump *d, void *st, int len); extern int gnet_stats_finish_copy(struct gnet_dump *d); -extern int gen_new_estimator(struct gnet_stats_basic *bstats, +extern int gen_new_estimator(struct gnet_stats_basic_packed *bstats, struct gnet_stats_rate_est *rate_est, spinlock_t *stats_lock, struct nlattr *opt); -extern void gen_kill_estimator(struct gnet_stats_basic *bstats, +extern void gen_kill_estimator(struct gnet_stats_basic_packed *bstats, struct gnet_stats_rate_est *rate_est); -extern int gen_replace_estimator(struct gnet_stats_basic *bstats, +extern int gen_replace_estimator(struct gnet_stats_basic_packed *bstats, struct gnet_stats_rate_est *rate_est, spinlock_t *stats_lock, struct nlattr *opt); -extern bool gen_estimator_active(const struct gnet_stats_basic *bstats, +extern bool gen_estimator_active(const struct gnet_stats_basic_packed *bstats, const struct gnet_stats_rate_est *rate_est); #endif diff --git a/include/net/netfilter/xt_rateest.h b/include/net/netfilter/xt_rateest.h index 65d594d..ddbf37e 100644 --- a/include/net/netfilter/xt_rateest.h +++ b/include/net/netfilter/xt_rateest.h @@ -8,7 +8,7 @@ struct xt_rateest { spinlock_t lock; struct gnet_estimator params; struct gnet_stats_rate_est rstats; - struct gnet_stats_basic bstats; + struct gnet_stats_basic_packed bstats; }; extern struct xt_rateest *xt_rateest_lookup(const char *name); diff --git a/include/net/sch_generic.h b/include/net/sch_generic.h index 964ffa0..5482e95 100644 --- a/include/net/sch_generic.h +++ b/include/net/sch_generic.h @@ -72,7 +72,7 @@ struct Qdisc */ unsigned long state; struct sk_buff_head q; - struct gnet_stats_basic bstats; + struct gnet_stats_basic_packed bstats; struct gnet_stats_queue qstats; }; diff --git a/net/core/gen_estimator.c b/net/core/gen_estimator.c index 78e5bfc..493775f 100644 --- a/net/core/gen_estimator.c +++ b/net/core/gen_estimator.c @@ -81,7 +81,7 @@ struct gen_estimator { struct list_head list; - struct gnet_stats_basic *bstats; + struct gnet_stats_basic_packed *bstats; struct gnet_stats_rate_est *rate_est; spinlock_t *stats_lock; int ewma_log; @@ -165,7 +165,7 @@ static void gen_add_node(struct gen_estimator *est) } static -struct gen_estimator *gen_find_node(const struct gnet_stats_basic *bstats, +struct gen_estimator *gen_find_node(const struct gnet_stats_basic_packed *bstats, const struct gnet_stats_rate_est *rate_est) { struct rb_node *p = est_root.rb_node; @@ -202,7 +202,7 @@ struct gen_estimator *gen_find_node(const struct gnet_stats_basic *bstats, * * NOTE: Called under rtnl_mutex */ -int gen_new_estimator(struct gnet_stats_basic *bstats, +int gen_new_estimator(struct gnet_stats_basic_packed *bstats, struct gnet_stats_rate_est *rate_est, spinlock_t *stats_lock, struct nlattr *opt) @@ -262,7 +262,7 @@ static void __gen_kill_estimator(struct rcu_head *head) * * NOTE: Called under rtnl_mutex */ -void gen_kill_estimator(struct gnet_stats_basic *bstats, +void gen_kill_estimator(struct gnet_stats_basic_packed *bstats, struct gnet_stats_rate_est *rate_est) { struct gen_estimator *e; @@ -292,7 +292,7 @@ EXPORT_SYMBOL(gen_kill_estimator); * * Returns 0 on success or a negative error code. */ -int gen_replace_estimator(struct gnet_stats_basic *bstats, +int gen_replace_estimator(struct gnet_stats_basic_packed *bstats, struct gnet_stats_rate_est *rate_est, spinlock_t *stats_lock, struct nlattr *opt) { @@ -308,7 +308,7 @@ EXPORT_SYMBOL(gen_replace_estimator); * * Returns true if estimator is active, and false if not. */ -bool gen_estimator_active(const struct gnet_stats_basic *bstats, +bool gen_estimator_active(const struct gnet_stats_basic_packed *bstats, const struct gnet_stats_rate_est *rate_est) { ASSERT_RTNL(); diff --git a/net/core/gen_stats.c b/net/core/gen_stats.c index c3d0ffe..8569310 100644 --- a/net/core/gen_stats.c +++ b/net/core/gen_stats.c @@ -106,16 +106,21 @@ gnet_stats_start_copy(struct sk_buff *skb, int type, spinlock_t *lock, * if the room in the socket buffer was not sufficient. */ int -gnet_stats_copy_basic(struct gnet_dump *d, struct gnet_stats_basic *b) +gnet_stats_copy_basic(struct gnet_dump *d, struct gnet_stats_basic_packed *b) { if (d->compat_tc_stats) { d->tc_stats.bytes = b->bytes; d->tc_stats.packets = b->packets; } - if (d->tail) - return gnet_stats_copy(d, TCA_STATS_BASIC, b, sizeof(*b)); + if (d->tail) { + struct gnet_stats_basic sb; + memset(&sb, 0, sizeof(sb)); + sb.bytes = b->bytes; + sb.packets = b->packets; + return gnet_stats_copy(d, TCA_STATS_BASIC, &sb, sizeof(sb)); + } return 0; } diff --git a/net/netfilter/xt_RATEEST.c b/net/netfilter/xt_RATEEST.c index 43f5676..d80b819 100644 --- a/net/netfilter/xt_RATEEST.c +++ b/net/netfilter/xt_RATEEST.c @@ -74,7 +74,7 @@ static unsigned int xt_rateest_tg(struct sk_buff *skb, const struct xt_target_param *par) { const struct xt_rateest_target_info *info = par->targinfo; - struct gnet_stats_basic *stats = &info->est->bstats; + struct gnet_stats_basic_packed *stats = &info->est->bstats; spin_lock_bh(&info->est->lock); stats->bytes += skb->len; diff --git a/net/sched/sch_atm.c b/net/sched/sch_atm.c index 2a8b83a..ab82f14 100644 --- a/net/sched/sch_atm.c +++ b/net/sched/sch_atm.c @@ -49,7 +49,7 @@ struct atm_flow_data { struct socket *sock; /* for closing */ u32 classid; /* x:y type ID */ int ref; /* reference count */ - struct gnet_stats_basic bstats; + struct gnet_stats_basic_packed bstats; struct gnet_stats_queue qstats; struct atm_flow_data *next; struct atm_flow_data *excess; /* flow for excess traffic; diff --git a/net/sched/sch_cbq.c b/net/sched/sch_cbq.c index 23a1676..d5798e1 100644 --- a/net/sched/sch_cbq.c +++ b/net/sched/sch_cbq.c @@ -128,7 +128,7 @@ struct cbq_class long avgidle; long deficit; /* Saved deficit for WRR */ psched_time_t penalized; - struct gnet_stats_basic bstats; + struct gnet_stats_basic_packed bstats; struct gnet_stats_queue qstats; struct gnet_stats_rate_est rate_est; struct tc_cbq_xstats xstats; diff --git a/net/sched/sch_drr.c b/net/sched/sch_drr.c index 7597fe1..12b2fb0 100644 --- a/net/sched/sch_drr.c +++ b/net/sched/sch_drr.c @@ -22,7 +22,7 @@ struct drr_class { unsigned int refcnt; unsigned int filter_cnt; - struct gnet_stats_basic bstats; + struct gnet_stats_basic_packed bstats; struct gnet_stats_queue qstats; struct gnet_stats_rate_est rate_est; struct list_head alist; diff --git a/net/sched/sch_hfsc.c b/net/sched/sch_hfsc.c index 362c281..dad0144 100644 --- a/net/sched/sch_hfsc.c +++ b/net/sched/sch_hfsc.c @@ -116,7 +116,7 @@ struct hfsc_class struct Qdisc_class_common cl_common; unsigned int refcnt; /* usage count */ - struct gnet_stats_basic bstats; + struct gnet_stats_basic_packed bstats; struct gnet_stats_queue qstats; struct gnet_stats_rate_est rate_est; unsigned int level; /* class level in hierarchy */ diff --git a/net/sched/sch_htb.c b/net/sched/sch_htb.c index 88cd026..ec4d463 100644 --- a/net/sched/sch_htb.c +++ b/net/sched/sch_htb.c @@ -74,7 +74,7 @@ enum htb_cmode { struct htb_class { struct Qdisc_class_common common; /* general class parameters */ - struct gnet_stats_basic bstats; + struct gnet_stats_basic_packed bstats; struct gnet_stats_queue qstats; struct gnet_stats_rate_est rate_est; struct tc_htb_xstats xstats; /* our special stats */ -- cgit v0.10.2 From 1154ecbd2f8298ef75609f5f8ed5aca96be599fb Mon Sep 17 00:00:00 2001 From: Zhang Qiang Date: Tue, 18 Aug 2009 14:58:24 +0800 Subject: nilfs2: missing a read lock for segment writer in nilfs_attach_checkpoint() 'ns_cno' of structure 'the_nilfs' must be protected from segment writer, in other words, the caller of nilfs_get_checkpoint should hold read lock for nilfs->ns_segctor_sem. This patch adds the lock/unlock operations in nilfs_attach_checkpoint() when calling nilfs_cpfile_get_checkpoint(). Signed-off-by: Zhang Qiang Signed-off-by: Ryusuke Konishi diff --git a/fs/nilfs2/super.c b/fs/nilfs2/super.c index 8e2ec43..151964f 100644 --- a/fs/nilfs2/super.c +++ b/fs/nilfs2/super.c @@ -416,8 +416,10 @@ int nilfs_attach_checkpoint(struct nilfs_sb_info *sbi, __u64 cno) if (unlikely(err)) goto failed; + down_read(&nilfs->ns_segctor_sem); err = nilfs_cpfile_get_checkpoint(nilfs->ns_cpfile, cno, 0, &raw_cp, &bh_cp); + up_read(&nilfs->ns_segctor_sem); if (unlikely(err)) { if (err == -ENOENT || err == -EINVAL) { printk(KERN_ERR -- cgit v0.10.2 From 6b99ecec25c8fd501e74306f5d23dd0365065e2a Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Thu, 6 Aug 2009 23:00:38 +0200 Subject: microblaze: use the generic ack_bad_irq implementation Signed-off-by: Christoph Hellwig Signed-off-by: Michal Simek diff --git a/arch/microblaze/include/asm/hardirq.h b/arch/microblaze/include/asm/hardirq.h index 41e1e1a..cd1ac9a 100644 --- a/arch/microblaze/include/asm/hardirq.h +++ b/arch/microblaze/include/asm/hardirq.h @@ -12,8 +12,6 @@ /* should be defined in each interrupt controller driver */ extern unsigned int get_irq(struct pt_regs *regs); -#define ack_bad_irq ack_bad_irq -void ack_bad_irq(unsigned int irq); #include #endif /* _ASM_MICROBLAZE_HARDIRQ_H */ diff --git a/arch/microblaze/kernel/irq.c b/arch/microblaze/kernel/irq.c index f688ee9..7d5ddd6 100644 --- a/arch/microblaze/kernel/irq.c +++ b/arch/microblaze/kernel/irq.c @@ -30,15 +30,6 @@ unsigned int irq_of_parse_and_map(struct device_node *dev, int index) } EXPORT_SYMBOL_GPL(irq_of_parse_and_map); -/* - * 'what should we do if we get a hw irq event on an illegal vector'. - * each architecture has to answer this themselves. - */ -void ack_bad_irq(unsigned int irq) -{ - printk(KERN_WARNING "unexpected IRQ trap at vector %02x\n", irq); -} - static u32 concurrent_irq; void do_IRQ(struct pt_regs *regs) -- cgit v0.10.2 From 892ee92b81b6e7fa5f6147c96e11c6c1b9802fc6 Mon Sep 17 00:00:00 2001 From: John Williams Date: Wed, 29 Jul 2009 22:08:40 +1000 Subject: microblaze: Sane handling of missing timer/intc in device tree This code path doesn't test any returned pointers for NULL, leading to a bad kernel page fault if there's no timer/intc found. Slightly better is to BUG(), but even better still would be a printk beforehand. Signed-off-by: John Williams Signed-off-by: Michal Simek diff --git a/arch/microblaze/kernel/intc.c b/arch/microblaze/kernel/intc.c index b156052..6eea6f9 100644 --- a/arch/microblaze/kernel/intc.c +++ b/arch/microblaze/kernel/intc.c @@ -12,6 +12,7 @@ #include #include #include +#include #include #include @@ -130,6 +131,7 @@ void __init init_IRQ(void) if (intc) break; } + BUG_ON(!intc); intc_baseaddr = *(int *) of_get_property(intc, "reg", NULL); intc_baseaddr = (unsigned long) ioremap(intc_baseaddr, PAGE_SIZE); diff --git a/arch/microblaze/kernel/timer.c b/arch/microblaze/kernel/timer.c index bdfa2f9..5499dea 100644 --- a/arch/microblaze/kernel/timer.c +++ b/arch/microblaze/kernel/timer.c @@ -22,6 +22,7 @@ #include #include #include +#include #include #include #include @@ -234,6 +235,7 @@ void __init time_init(void) if (timer) break; } + BUG_ON(!timer); timer_baseaddr = *(int *) of_get_property(timer, "reg", NULL); timer_baseaddr = (unsigned long) ioremap(timer_baseaddr, PAGE_SIZE); -- cgit v0.10.2 From 2856ed35ead295a7cc8788d9ba860e746dfc92bb Mon Sep 17 00:00:00 2001 From: Michal Simek Date: Thu, 6 Aug 2009 16:00:52 +0200 Subject: microblaze: Enable ppoll syscall Signed-off-by: Michal Simek diff --git a/arch/microblaze/kernel/syscall_table.S b/arch/microblaze/kernel/syscall_table.S index 216db81..4572160 100644 --- a/arch/microblaze/kernel/syscall_table.S +++ b/arch/microblaze/kernel/syscall_table.S @@ -313,7 +313,7 @@ ENTRY(sys_call_table) .long sys_fchmodat .long sys_faccessat .long sys_ni_syscall /* pselect6 */ - .long sys_ni_syscall /* sys_ppoll */ + .long sys_ppoll .long sys_unshare /* 310 */ .long sys_set_robust_list .long sys_get_robust_list -- cgit v0.10.2 From 8f37b6c9852ff79cc8472c44ea6f6485dfd58bd2 Mon Sep 17 00:00:00 2001 From: Michal Simek Date: Tue, 11 Aug 2009 12:36:12 +0200 Subject: microblaze: Use klimit instead of _end for memory init For noMMU system when you use larger rootfs image there is problem with using _end label because we increase klimit but in memory initialization we use still _end which is wrong. Larger mtd rootfs was rewritten by init_bootmem_node. MMU kernel use static initialization where klimit is setup to _end. There is no any other hanling with klimit. Signed-off-by: Michal Simek diff --git a/arch/microblaze/mm/init.c b/arch/microblaze/mm/init.c index 8d92c4e..f207f1a 100644 --- a/arch/microblaze/mm/init.c +++ b/arch/microblaze/mm/init.c @@ -130,13 +130,13 @@ void __init setup_memory(void) * (in case the address isn't page-aligned). */ #ifndef CONFIG_MMU - map_size = init_bootmem_node(NODE_DATA(0), PFN_UP(TOPHYS((u32)_end)), + map_size = init_bootmem_node(NODE_DATA(0), PFN_UP(TOPHYS((u32)klimit)), min_low_pfn, max_low_pfn); #else map_size = init_bootmem_node(&contig_page_data, - PFN_UP(TOPHYS((u32)_end)), min_low_pfn, max_low_pfn); + PFN_UP(TOPHYS((u32)klimit)), min_low_pfn, max_low_pfn); #endif - lmb_reserve(PFN_UP(TOPHYS((u32)_end)) << PAGE_SHIFT, map_size); + lmb_reserve(PFN_UP(TOPHYS((u32)klimit)) << PAGE_SHIFT, map_size); /* free bootmem is whole main memory */ free_bootmem(memory_start, memory_size); -- cgit v0.10.2 From 1fef7891755d99039592aa8d1ed02e981f38de15 Mon Sep 17 00:00:00 2001 From: Michal Simek Date: Tue, 18 Aug 2009 11:05:11 +0200 Subject: microblaze: Update Microblaze defconfigs Signed-off-by: Michal Simek diff --git a/arch/microblaze/configs/mmu_defconfig b/arch/microblaze/configs/mmu_defconfig index bd0b85e..09c3296 100644 --- a/arch/microblaze/configs/mmu_defconfig +++ b/arch/microblaze/configs/mmu_defconfig @@ -1,7 +1,7 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.30-rc6 -# Fri May 22 10:02:33 2009 +# Linux kernel version: 2.6.31-rc6 +# Tue Aug 18 11:00:02 2009 # CONFIG_MICROBLAZE=y # CONFIG_SWAP is not set @@ -18,7 +18,11 @@ CONFIG_GENERIC_TIME=y CONFIG_GENERIC_CLOCKEVENTS=y CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ=y CONFIG_GENERIC_GPIO=y +CONFIG_GENERIC_CSUM=y +# CONFIG_PCI is not set +CONFIG_NO_DMA=y CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config" +CONFIG_CONSTRUCTORS=y # # General setup @@ -59,8 +63,8 @@ CONFIG_INITRAMFS_ROOT_GID=0 CONFIG_RD_GZIP=y # CONFIG_RD_BZIP2 is not set # CONFIG_RD_LZMA is not set -CONFIG_INITRAMFS_COMPRESSION_NONE=y -# CONFIG_INITRAMFS_COMPRESSION_GZIP is not set +# CONFIG_INITRAMFS_COMPRESSION_NONE is not set +CONFIG_INITRAMFS_COMPRESSION_GZIP=y # CONFIG_INITRAMFS_COMPRESSION_BZIP2 is not set # CONFIG_INITRAMFS_COMPRESSION_LZMA is not set # CONFIG_CC_OPTIMIZE_FOR_SIZE is not set @@ -71,7 +75,6 @@ CONFIG_SYSCTL_SYSCALL=y CONFIG_KALLSYMS=y CONFIG_KALLSYMS_ALL=y CONFIG_KALLSYMS_EXTRA_PASS=y -# CONFIG_STRIP_ASM_SYMS is not set # CONFIG_HOTPLUG is not set CONFIG_PRINTK=y CONFIG_BUG=y @@ -84,13 +87,22 @@ CONFIG_TIMERFD=y CONFIG_EVENTFD=y # CONFIG_SHMEM is not set CONFIG_AIO=y + +# +# Performance Counters +# CONFIG_VM_EVENT_COUNTERS=y +# CONFIG_STRIP_ASM_SYMS is not set CONFIG_COMPAT_BRK=y CONFIG_SLAB=y # CONFIG_SLUB is not set # CONFIG_SLOB is not set # CONFIG_PROFILING is not set # CONFIG_MARKERS is not set + +# +# GCOV-based kernel profiling +# # CONFIG_SLOW_WORK is not set # CONFIG_HAVE_GENERIC_DMA_COHERENT is not set CONFIG_SLABINFO=y @@ -102,7 +114,7 @@ CONFIG_MODULE_UNLOAD=y # CONFIG_MODVERSIONS is not set # CONFIG_MODULE_SRCVERSION_ALL is not set CONFIG_BLOCK=y -# CONFIG_LBD is not set +CONFIG_LBDAF=y # CONFIG_BLK_DEV_BSG is not set # CONFIG_BLK_DEV_INTEGRITY is not set @@ -194,9 +206,9 @@ CONFIG_SPLIT_PTLOCK_CPUS=4 # CONFIG_PHYS_ADDR_T_64BIT is not set CONFIG_ZONE_DMA_FLAG=0 CONFIG_VIRT_TO_BUS=y -CONFIG_UNEVICTABLE_LRU=y CONFIG_HAVE_MLOCK=y CONFIG_HAVE_MLOCKED_PAGE_BIT=y +CONFIG_DEFAULT_MMAP_MIN_ADDR=4096 # # Exectuable file formats @@ -262,6 +274,7 @@ CONFIG_DEFAULT_TCP_CONG="cubic" # CONFIG_ECONET is not set # CONFIG_WAN_ROUTER is not set # CONFIG_PHONET is not set +# CONFIG_IEEE802154 is not set # CONFIG_NET_SCHED is not set # CONFIG_DCB is not set @@ -325,7 +338,6 @@ CONFIG_MISC_DEVICES=y # CONFIG_ATA is not set # CONFIG_MD is not set CONFIG_NETDEVICES=y -CONFIG_COMPAT_NET_DEV_OPS=y # CONFIG_DUMMY is not set # CONFIG_BONDING is not set # CONFIG_MACVLAN is not set @@ -344,7 +356,7 @@ CONFIG_NET_ETHERNET=y # CONFIG_IBM_NEW_EMAC_NO_FLOW_CTRL is not set # CONFIG_IBM_NEW_EMAC_MAL_CLR_ICINTSTAT is not set # CONFIG_IBM_NEW_EMAC_MAL_COMMON_ERR is not set -# CONFIG_B44 is not set +# CONFIG_KS8842 is not set CONFIG_NETDEV_1000=y CONFIG_NETDEV_10000=y @@ -410,6 +422,11 @@ CONFIG_LEGACY_PTY_COUNT=256 # CONFIG_TCG_TPM is not set # CONFIG_I2C is not set # CONFIG_SPI is not set + +# +# PPS support +# +# CONFIG_PPS is not set CONFIG_ARCH_WANT_OPTIONAL_GPIOLIB=y # CONFIG_GPIOLIB is not set # CONFIG_W1 is not set @@ -418,12 +435,6 @@ CONFIG_ARCH_WANT_OPTIONAL_GPIOLIB=y # CONFIG_THERMAL is not set # CONFIG_THERMAL_HWMON is not set # CONFIG_WATCHDOG is not set -CONFIG_SSB_POSSIBLE=y - -# -# Sonics Silicon Backplane -# -# CONFIG_SSB is not set # # Multifunction device drivers @@ -433,22 +444,7 @@ CONFIG_SSB_POSSIBLE=y # CONFIG_HTC_PASIC3 is not set # CONFIG_MFD_TMIO is not set # CONFIG_REGULATOR is not set - -# -# Multimedia devices -# - -# -# Multimedia core support -# -# CONFIG_VIDEO_DEV is not set -# CONFIG_DVB_CORE is not set -# CONFIG_VIDEO_MEDIA is not set - -# -# Multimedia drivers -# -# CONFIG_DAB is not set +# CONFIG_MEDIA_SUPPORT is not set # # Graphics support @@ -469,9 +465,12 @@ CONFIG_SSB_POSSIBLE=y # CONFIG_NEW_LEDS is not set # CONFIG_ACCESSIBILITY is not set # CONFIG_RTC_CLASS is not set -# CONFIG_DMADEVICES is not set # CONFIG_AUXDISPLAY is not set # CONFIG_UIO is not set + +# +# TI VLYNQ +# # CONFIG_STAGING is not set # @@ -485,12 +484,15 @@ CONFIG_EXT2_FS=y # CONFIG_REISERFS_FS is not set # CONFIG_JFS_FS is not set # CONFIG_FS_POSIX_ACL is not set -CONFIG_FILE_LOCKING=y # CONFIG_XFS_FS is not set +# CONFIG_GFS2_FS is not set # CONFIG_OCFS2_FS is not set # CONFIG_BTRFS_FS is not set +CONFIG_FILE_LOCKING=y +CONFIG_FSNOTIFY=y # CONFIG_DNOTIFY is not set # CONFIG_INOTIFY is not set +CONFIG_INOTIFY_USER=y # CONFIG_QUOTA is not set # CONFIG_AUTOFS_FS is not set # CONFIG_AUTOFS4_FS is not set @@ -678,6 +680,7 @@ CONFIG_DEBUG_INFO=y # CONFIG_SYSCTL_SYSCALL_CHECK is not set # CONFIG_PAGE_POISONING is not set # CONFIG_SAMPLES is not set +# CONFIG_KMEMCHECK is not set CONFIG_EARLY_PRINTK=y CONFIG_HEART_BEAT=y CONFIG_DEBUG_BOOTMEM=y @@ -793,6 +796,5 @@ CONFIG_ZLIB_INFLATE=y CONFIG_DECOMPRESS_GZIP=y CONFIG_HAS_IOMEM=y CONFIG_HAS_IOPORT=y -CONFIG_HAS_DMA=y CONFIG_HAVE_LMB=y CONFIG_NLATTR=y diff --git a/arch/microblaze/configs/nommu_defconfig b/arch/microblaze/configs/nommu_defconfig index 4ef6af0..8b63861 100644 --- a/arch/microblaze/configs/nommu_defconfig +++ b/arch/microblaze/configs/nommu_defconfig @@ -1,7 +1,7 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.30-rc5 -# Mon May 11 09:01:02 2009 +# Linux kernel version: 2.6.31-rc6 +# Tue Aug 18 10:35:30 2009 # CONFIG_MICROBLAZE=y # CONFIG_SWAP is not set @@ -17,9 +17,12 @@ CONFIG_GENERIC_TIME=y # CONFIG_GENERIC_TIME_VSYSCALL is not set CONFIG_GENERIC_CLOCKEVENTS=y CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ=y +CONFIG_GENERIC_GPIO=y +CONFIG_GENERIC_CSUM=y # CONFIG_PCI is not set -# CONFIG_NO_DMA is not set +CONFIG_NO_DMA=y CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config" +CONFIG_CONSTRUCTORS=y # # General setup @@ -64,7 +67,6 @@ CONFIG_SYSCTL_SYSCALL=y CONFIG_KALLSYMS=y CONFIG_KALLSYMS_ALL=y CONFIG_KALLSYMS_EXTRA_PASS=y -# CONFIG_STRIP_ASM_SYMS is not set # CONFIG_HOTPLUG is not set CONFIG_PRINTK=y CONFIG_BUG=y @@ -76,13 +78,23 @@ CONFIG_SIGNALFD=y CONFIG_TIMERFD=y CONFIG_EVENTFD=y CONFIG_AIO=y + +# +# Performance Counters +# CONFIG_VM_EVENT_COUNTERS=y +# CONFIG_STRIP_ASM_SYMS is not set CONFIG_COMPAT_BRK=y CONFIG_SLAB=y # CONFIG_SLUB is not set # CONFIG_SLOB is not set # CONFIG_PROFILING is not set # CONFIG_MARKERS is not set + +# +# GCOV-based kernel profiling +# +# CONFIG_GCOV_KERNEL is not set # CONFIG_SLOW_WORK is not set # CONFIG_HAVE_GENERIC_DMA_COHERENT is not set CONFIG_SLABINFO=y @@ -95,7 +107,7 @@ CONFIG_MODULE_UNLOAD=y # CONFIG_MODVERSIONS is not set # CONFIG_MODULE_SRCVERSION_ALL is not set CONFIG_BLOCK=y -# CONFIG_LBD is not set +CONFIG_LBDAF=y # CONFIG_BLK_DEV_BSG is not set # CONFIG_BLK_DEV_INTEGRITY is not set @@ -156,8 +168,16 @@ CONFIG_CMDLINE_BOOL=y CONFIG_CMDLINE="console=ttyUL0,115200" # CONFIG_CMDLINE_FORCE is not set CONFIG_OF=y -CONFIG_OF_DEVICE=y CONFIG_PROC_DEVICETREE=y + +# +# Advanced setup +# + +# +# Default settings for advanced configuration options are used +# +CONFIG_KERNEL_START=0x90000000 CONFIG_SELECT_MEMORY_MODEL=y CONFIG_FLATMEM_MANUAL=y # CONFIG_DISCONTIGMEM_MANUAL is not set @@ -169,7 +189,7 @@ CONFIG_SPLIT_PTLOCK_CPUS=4 # CONFIG_PHYS_ADDR_T_64BIT is not set CONFIG_ZONE_DMA_FLAG=0 CONFIG_VIRT_TO_BUS=y -CONFIG_UNEVICTABLE_LRU=y +CONFIG_DEFAULT_MMAP_MIN_ADDR=4096 CONFIG_NOMMU_INITIAL_TRIM_EXCESS=1 # @@ -237,6 +257,7 @@ CONFIG_DEFAULT_TCP_CONG="cubic" # CONFIG_ECONET is not set # CONFIG_WAN_ROUTER is not set # CONFIG_PHONET is not set +# CONFIG_IEEE802154 is not set # CONFIG_NET_SCHED is not set # CONFIG_DCB is not set @@ -254,7 +275,11 @@ CONFIG_WIRELESS=y CONFIG_WIRELESS_OLD_REGULATORY=y # CONFIG_WIRELESS_EXT is not set # CONFIG_LIB80211 is not set -# CONFIG_MAC80211 is not set + +# +# CFG80211 needs to be enabled for MAC80211 +# +CONFIG_MAC80211_DEFAULT_PS_VALUE=0 # CONFIG_WIMAX is not set # CONFIG_RFKILL is not set # CONFIG_NET_9P is not set @@ -353,6 +378,7 @@ CONFIG_MTD_UCLINUX=y # UBI - Unsorted block images # # CONFIG_MTD_UBI is not set +CONFIG_OF_DEVICE=y # CONFIG_PARPORT is not set CONFIG_BLK_DEV=y # CONFIG_BLK_DEV_COW_COMMON is not set @@ -364,6 +390,7 @@ CONFIG_BLK_DEV_RAM_SIZE=4096 # CONFIG_BLK_DEV_XIP is not set # CONFIG_CDROM_PKTCDVD is not set # CONFIG_ATA_OVER_ETH is not set +# CONFIG_XILINX_SYSACE is not set CONFIG_MISC_DEVICES=y # CONFIG_ENCLOSURE_SERVICES is not set # CONFIG_C2PORT is not set @@ -383,7 +410,6 @@ CONFIG_MISC_DEVICES=y # CONFIG_ATA is not set # CONFIG_MD is not set CONFIG_NETDEVICES=y -CONFIG_COMPAT_NET_DEV_OPS=y # CONFIG_DUMMY is not set # CONFIG_BONDING is not set # CONFIG_MACVLAN is not set @@ -402,7 +428,7 @@ CONFIG_NET_ETHERNET=y # CONFIG_IBM_NEW_EMAC_NO_FLOW_CTRL is not set # CONFIG_IBM_NEW_EMAC_MAL_CLR_ICINTSTAT is not set # CONFIG_IBM_NEW_EMAC_MAL_COMMON_ERR is not set -# CONFIG_B44 is not set +# CONFIG_KS8842 is not set CONFIG_NETDEV_1000=y CONFIG_NETDEV_10000=y @@ -463,23 +489,25 @@ CONFIG_HW_RANDOM=y # CONFIG_HW_RANDOM_TIMERIOMEM is not set # CONFIG_RTC is not set # CONFIG_GEN_RTC is not set +# CONFIG_XILINX_HWICAP is not set # CONFIG_R3964 is not set # CONFIG_RAW_DRIVER is not set # CONFIG_TCG_TPM is not set # CONFIG_I2C is not set # CONFIG_SPI is not set + +# +# PPS support +# +# CONFIG_PPS is not set +CONFIG_ARCH_WANT_OPTIONAL_GPIOLIB=y +# CONFIG_GPIOLIB is not set # CONFIG_W1 is not set # CONFIG_POWER_SUPPLY is not set # CONFIG_HWMON is not set # CONFIG_THERMAL is not set # CONFIG_THERMAL_HWMON is not set # CONFIG_WATCHDOG is not set -CONFIG_SSB_POSSIBLE=y - -# -# Sonics Silicon Backplane -# -# CONFIG_SSB is not set # # Multifunction device drivers @@ -489,22 +517,7 @@ CONFIG_SSB_POSSIBLE=y # CONFIG_HTC_PASIC3 is not set # CONFIG_MFD_TMIO is not set # CONFIG_REGULATOR is not set - -# -# Multimedia devices -# - -# -# Multimedia core support -# -# CONFIG_VIDEO_DEV is not set -# CONFIG_DVB_CORE is not set -# CONFIG_VIDEO_MEDIA is not set - -# -# Multimedia drivers -# -CONFIG_DAB=y +# CONFIG_MEDIA_SUPPORT is not set # # Graphics support @@ -520,9 +533,10 @@ CONFIG_VIDEO_OUTPUT_CONTROL=y # CONFIG_DISPLAY_SUPPORT is not set # CONFIG_SOUND is not set CONFIG_USB_SUPPORT=y -# CONFIG_USB_ARCH_HAS_HCD is not set +CONFIG_USB_ARCH_HAS_HCD=y # CONFIG_USB_ARCH_HAS_OHCI is not set # CONFIG_USB_ARCH_HAS_EHCI is not set +# CONFIG_USB is not set # CONFIG_USB_OTG_WHITELIST is not set # CONFIG_USB_OTG_BLACKLIST_HUB is not set @@ -543,9 +557,12 @@ CONFIG_USB_SUPPORT=y # CONFIG_NEW_LEDS is not set # CONFIG_ACCESSIBILITY is not set # CONFIG_RTC_CLASS is not set -# CONFIG_DMADEVICES is not set # CONFIG_AUXDISPLAY is not set # CONFIG_UIO is not set + +# +# TI VLYNQ +# # CONFIG_STAGING is not set # @@ -558,12 +575,15 @@ CONFIG_EXT2_FS=y # CONFIG_REISERFS_FS is not set # CONFIG_JFS_FS is not set CONFIG_FS_POSIX_ACL=y -CONFIG_FILE_LOCKING=y # CONFIG_XFS_FS is not set +# CONFIG_GFS2_FS is not set # CONFIG_OCFS2_FS is not set # CONFIG_BTRFS_FS is not set +CONFIG_FILE_LOCKING=y +CONFIG_FSNOTIFY=y # CONFIG_DNOTIFY is not set # CONFIG_INOTIFY is not set +CONFIG_INOTIFY_USER=y # CONFIG_QUOTA is not set # CONFIG_AUTOFS_FS is not set # CONFIG_AUTOFS4_FS is not set @@ -813,6 +833,5 @@ CONFIG_GENERIC_FIND_LAST_BIT=y CONFIG_ZLIB_INFLATE=y CONFIG_HAS_IOMEM=y CONFIG_HAS_IOPORT=y -CONFIG_HAS_DMA=y CONFIG_HAVE_LMB=y CONFIG_NLATTR=y -- cgit v0.10.2 From f738eb1b63edf664da1b4ac76895d988749b2f07 Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Tue, 18 Aug 2009 11:32:24 +0200 Subject: perf_counter: Fix the PARISC build PARISC does not build: /home/mingo/tip/kernel/perf_counter.c: In function 'perf_counter_index': /home/mingo/tip/kernel/perf_counter.c:2016: error: 'PERF_COUNTER_INDEX_OFFSET' undeclared (first use in this function) /home/mingo/tip/kernel/perf_counter.c:2016: error: (Each undeclared identifier is reported only once /home/mingo/tip/kernel/perf_counter.c:2016: error: for each function it appears in.) As PERF_COUNTER_INDEX_OFFSET is not defined. Now, we could define it in the architecture - but lets also provide a core default of 0 (which happens to be what all but one architecture uses at the moment). Architectures that need a different index offset should set this value in their asm/perf_counter.h files. Cc: Kyle McMartin Cc: Helge Deller Cc: linux-parisc@vger.kernel.org Cc: Peter Zijlstra Cc: Mike Galbraith Cc: Paul Mackerras Cc: Arnaldo Carvalho de Melo Cc: Frederic Weisbecker LKML-Reference: Signed-off-by: Ingo Molnar diff --git a/kernel/perf_counter.c b/kernel/perf_counter.c index b8fe739..36f65e2 100644 --- a/kernel/perf_counter.c +++ b/kernel/perf_counter.c @@ -2019,6 +2019,10 @@ int perf_counter_task_disable(void) return 0; } +#ifndef PERF_COUNTER_INDEX_OFFSET +# define PERF_COUNTER_INDEX_OFFSET 0 +#endif + static int perf_counter_index(struct perf_counter *counter) { if (counter->state != PERF_COUNTER_STATE_ACTIVE) -- cgit v0.10.2 From 15f3fa4e7f608c5ce19187b3b4a953222fdfa751 Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Tue, 18 Aug 2009 13:52:28 +0200 Subject: perf annotate: Fix segmentation fault Linus reported this perf annotate segfault: [torvalds@nehalem git]$ perf annotate unmap_vmas Segmentation fault #0 map__clone (self=) at builtin-annotate.c:236 #1 thread__fork (self=) at builtin-annotate.c:372 The bug here was that builtin-annotate.c was a copy of builtin-report.c and a threading related fix to builtin-report.c didnt get propagated to builtin-annotate.c ... Reported-by: Linus Torvalds Cc: Peter Zijlstra Cc: Mike Galbraith Cc: Paul Mackerras Cc: Arnaldo Carvalho de Melo Cc: Frederic Weisbecker LKML-Reference: Signed-off-by: Ingo Molnar diff --git a/tools/perf/builtin-annotate.c b/tools/perf/builtin-annotate.c index 1dba568..343e7b1 100644 --- a/tools/perf/builtin-annotate.c +++ b/tools/perf/builtin-annotate.c @@ -980,6 +980,13 @@ process_fork_event(event_t *event, unsigned long offset, unsigned long head) (void *)(long)(event->header.size), event->fork.pid, event->fork.ppid); + /* + * A thread clone will have the same PID for both + * parent and child. + */ + if (thread == parent) + return 0; + if (!thread || !parent || thread__fork(thread, parent)) { dprintf("problem processing PERF_EVENT_FORK, skipping event.\n"); return -1; -- cgit v0.10.2 From 69ab849439b506cd8dd2879527fdb64d95dd5211 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Mon, 17 Aug 2009 14:07:16 +0200 Subject: genirq: Wake up irq thread after action has been installed The wake_up_process() of the new irq thread in __setup_irq() is too early as the irqaction is not yet fully initialized especially action->irq is not yet set. The interrupt thread might dereference the wrong irq descriptor. Move the wakeup after the action is installed and action->irq has been set. Reported-by: Michael Buesch Signed-off-by: Thomas Gleixner Tested-by: Michael Buesch diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c index d222515..0ec9ed8 100644 --- a/kernel/irq/manage.c +++ b/kernel/irq/manage.c @@ -607,7 +607,6 @@ __setup_irq(unsigned int irq, struct irq_desc *desc, struct irqaction *new) */ get_task_struct(t); new->thread = t; - wake_up_process(t); } /* @@ -690,6 +689,7 @@ __setup_irq(unsigned int irq, struct irq_desc *desc, struct irqaction *new) (int)(new->flags & IRQF_TRIGGER_MASK)); } + new->irq = irq; *old_ptr = new; /* Reset broken irq detection when installing new handler */ @@ -707,7 +707,13 @@ __setup_irq(unsigned int irq, struct irq_desc *desc, struct irqaction *new) spin_unlock_irqrestore(&desc->lock, flags); - new->irq = irq; + /* + * Strictly no need to wake it up, but hung_task complains + * when no hard interrupt wakes the thread up. + */ + if (new->thread) + wake_up_process(new->thread); + register_irq_proc(irq, desc); new->dir = NULL; register_handler_proc(irq, new); -- cgit v0.10.2 From 78b89ecd731798f2fec8cc26ca90739253cec33c Mon Sep 17 00:00:00 2001 From: Jan Beulich Date: Tue, 18 Aug 2009 16:41:33 +0100 Subject: i386: Fix section mismatches for init code with !HOTPLUG_CPU Commit 0e83815be719d3391bf5ea24b7fe696c07dbd417 changed the section the initial_code variable gets allocated in, in an attempt to address a section conflict warning. This, however created a new section conflict when building without HOTPLUG_CPU. The apparently only (reasonable) way to address this is to always use __REFDATA. Once at it, also fix a second section mismatch when not using HOTPLUG_CPU. Signed-off-by: Jan Beulich Cc: Robert Richter LKML-Reference: <4A8AE7CD020000780001054B@vpn.id2.novell.com> Signed-off-by: Ingo Molnar diff --git a/arch/x86/kernel/head_32.S b/arch/x86/kernel/head_32.S index 0d98a01..cc827ac 100644 --- a/arch/x86/kernel/head_32.S +++ b/arch/x86/kernel/head_32.S @@ -261,9 +261,7 @@ page_pde_offset = (__PAGE_OFFSET >> 20); * which will be freed later */ -#ifndef CONFIG_HOTPLUG_CPU -.section .init.text,"ax",@progbits -#endif +__CPUINIT #ifdef CONFIG_SMP ENTRY(startup_32_smp) @@ -602,11 +600,7 @@ ignore_int: #endif iret -#ifndef CONFIG_HOTPLUG_CPU - __CPUINITDATA -#else __REFDATA -#endif .align 4 ENTRY(initial_code) .long i386_start_kernel -- cgit v0.10.2 From b395cd8a74b4a8d943dd4b5585e676f62f7350b3 Mon Sep 17 00:00:00 2001 From: Kyle McMartin Date: Tue, 18 Aug 2009 12:41:25 -0400 Subject: perf tools: Make 'make html' work pushd tools/perf/Documentation make html popd is failing for me... ASCIIDOC perf-annotate.html ERROR: unsafe: include file: /etc/asciidoc/./stylesheets/xhtml11.css ERROR: unsafe: include file: /etc/asciidoc/./stylesheets/xhtml11-manpage.css ERROR: unsafe: include file: /etc/asciidoc/./stylesheets/xhtml11-quirks.css make: *** [perf-annotate.html] Error 1 Apparently asciidoc "unsafe" is the default mode of operation in practice. https://bugzilla.redhat.com/show_bug.cgi?id=506953 Works tidily now. Signed-off-by: Kyle McMartin Cc: Peter Zijlstra Cc: Mike Galbraith Cc: Paul Mackerras Cc: Arnaldo Carvalho de Melo Cc: Frederic Weisbecker LKML-Reference: <20090818164125.GM25206@bombadil.infradead.org> Signed-off-by: Ingo Molnar diff --git a/tools/perf/Documentation/Makefile b/tools/perf/Documentation/Makefile index 5457192..bdd3b7e 100644 --- a/tools/perf/Documentation/Makefile +++ b/tools/perf/Documentation/Makefile @@ -35,7 +35,7 @@ man7dir=$(mandir)/man7 # DESTDIR= ASCIIDOC=asciidoc -ASCIIDOC_EXTRA = +ASCIIDOC_EXTRA = --unsafe MANPAGE_XSL = manpage-normal.xsl XMLTO_EXTRA = INSTALL?=install -- cgit v0.10.2 From a924586036833086b262a371b09d1266c23bb4d1 Mon Sep 17 00:00:00 2001 From: Ryusuke Konishi Date: Wed, 19 Aug 2009 00:29:43 +0900 Subject: nilfs2: fix oopses with doubly mounted snapshots will fix kernel oopses like the following: # mount -t nilfs2 -r -o cp=20 /dev/sdb1 /test1 # mount -t nilfs2 -r -o cp=20 /dev/sdb1 /test2 # umount /test1 # umount /test2 BUG: sleeping function called from invalid context at arch/x86/mm/fault.c:1069 in_atomic(): 0, irqs_disabled(): 1, pid: 3886, name: umount.nilfs2 1 lock held by umount.nilfs2/3886: #0: (&type->s_umount_key#31){+.+...}, at: [] deactivate_super+0x52/0x6c irq event stamp: 1219 hardirqs last enabled at (1219): [] __mutex_unlock_slowpath+0xf8/0x119 hardirqs last disabled at (1218): [] __mutex_unlock_slowpath+0x59/0x119 softirqs last enabled at (1214): [] __do_softirq+0x1a5/0x1ad softirqs last disabled at (1205): [] do_softirq+0x36/0x5a Pid: 3886, comm: umount.nilfs2 Not tainted 2.6.31-rc6 #55 Call Trace: [] __might_sleep+0x107/0x10e [] do_page_fault+0x246/0x397 [] ? do_page_fault+0x0/0x397 [] error_code+0x6b/0x70 [] ? do_page_fault+0x0/0x397 [] ? __lock_acquire+0x91/0x12fd [] ? __lock_acquire+0x12ee/0x12fd [] ? __lock_acquire+0x12ee/0x12fd [] lock_acquire+0xba/0xdd [] ? nilfs_detach_segment_constructor+0x2f/0x2fa [nilfs2] [] down_write+0x2a/0x46 [] ? nilfs_detach_segment_constructor+0x2f/0x2fa [nilfs2] [] nilfs_detach_segment_constructor+0x2f/0x2fa [nilfs2] [] ? mark_held_locks+0x43/0x5b [] ? trace_hardirqs_on_caller+0x10b/0x133 [] ? trace_hardirqs_on+0xb/0xd [] nilfs_put_super+0x2f/0xca [nilfs2] [] generic_shutdown_super+0x49/0xb8 [] kill_block_super+0x1d/0x31 [] ? vfs_quota_off+0x0/0x12 [] deactivate_super+0x57/0x6c [] mntput_no_expire+0x8c/0xb4 [] sys_umount+0x27f/0x2a4 [] sys_oldumount+0xd/0xf [] sysenter_do_call+0x12/0x38 ... This turns out to be a bug brought by an -rc1 patch ("nilfs2: simplify remaining sget() use"). In the patch, a new "put resource" function, nilfs_put_sbinfo() was introduced to delay freeing nilfs_sb_info struct. But the nilfs_put_sbinfo() mistakenly used atomic_dec_and_test() function to check the reference count, and it caused the nilfs_sb_info was freed when user mounted a snapshot twice. This bug also suggests there was unseen memory leak in usual mount /umount operations for nilfs. Signed-off-by: Ryusuke Konishi diff --git a/fs/nilfs2/the_nilfs.h b/fs/nilfs2/the_nilfs.h index e8adbff..1b9caaf 100644 --- a/fs/nilfs2/the_nilfs.h +++ b/fs/nilfs2/the_nilfs.h @@ -253,7 +253,7 @@ nilfs_detach_writer(struct the_nilfs *nilfs, struct nilfs_sb_info *sbi) static inline void nilfs_put_sbinfo(struct nilfs_sb_info *sbi) { - if (!atomic_dec_and_test(&sbi->s_count)) + if (atomic_dec_and_test(&sbi->s_count)) kfree(sbi); } -- cgit v0.10.2 From a58578e47f004017cf47803ad372490806630e58 Mon Sep 17 00:00:00 2001 From: Dave Jones Date: Tue, 18 Aug 2009 13:47:37 -0400 Subject: security: Make LSM_MMAP_MIN_ADDR default match its help text. Commit 788084aba2ab7348257597496befcbccabdc98a3 added the LSM_MMAP_MIN_ADDR option, whose help text states "For most ia64, ppc64 and x86 users with lots of address space a value of 65536 is reasonable and should cause no problems." Which implies that it's default setting was typoed. Signed-off-by: Dave Jones Acked-by: Eric Paris Signed-off-by: James Morris diff --git a/security/Kconfig b/security/Kconfig index 9c60c34..bba9268 100644 --- a/security/Kconfig +++ b/security/Kconfig @@ -116,7 +116,7 @@ config SECURITY_ROOTPLUG config LSM_MMAP_MIN_ADDR int "Low address space for LSM to from user allocation" depends on SECURITY && SECURITY_SELINUX - default 65535 + default 65536 help This is the portion of low virtual memory which should be protected from userspace allocation. Keeping a user from writing to low pages -- cgit v0.10.2 From 024e6cb408307de41cbfcb1e5a170d9af60ab2a9 Mon Sep 17 00:00:00 2001 From: Andreas Schwab Date: Tue, 18 Aug 2009 22:14:29 +0200 Subject: security: Fix prompt for LSM_MMAP_MIN_ADDR Fix prompt for LSM_MMAP_MIN_ADDR. (Verbs are cool!) Signed-off-by: Andreas Schwab Acked-by: Eric Paris Signed-off-by: James Morris diff --git a/security/Kconfig b/security/Kconfig index bba9268..4c86534 100644 --- a/security/Kconfig +++ b/security/Kconfig @@ -114,7 +114,7 @@ config SECURITY_ROOTPLUG If you are unsure how to answer this question, answer N. config LSM_MMAP_MIN_ADDR - int "Low address space for LSM to from user allocation" + int "Low address space for LSM to protect from user allocation" depends on SECURITY && SECURITY_SELINUX default 65536 help -- cgit v0.10.2 From 6b6f0b6c131321e1bc34c47b7f671b0360315402 Mon Sep 17 00:00:00 2001 From: Joe Perches Date: Tue, 18 Aug 2009 14:11:06 -0700 Subject: MAINTAINERS: OSD LIBRARY and FILESYSTEM pattern fix Signed-off-by: Joe Perches Acked-by: Benny Halevy Cc: Boaz Harrosh Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/MAINTAINERS b/MAINTAINERS index 557d4dc..ac0fdfd 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -3809,7 +3809,7 @@ W: http://open-osd.org T: git git://git.open-osd.org/open-osd.git S: Maintained F: drivers/scsi/osd/ -F: drivers/include/scsi/osd_* +F: include/scsi/osd_* F: fs/exofs/ P54 WIRELESS DRIVER -- cgit v0.10.2 From 89a4eb4b66e8f4d395e14a14d262dac4d6ca52f0 Mon Sep 17 00:00:00 2001 From: Jeff Layton Date: Tue, 18 Aug 2009 14:11:08 -0700 Subject: vfs: make get_sb_pseudo set s_maxbytes to value that can be cast to signed get_sb_pseudo sets s_maxbytes to ~0ULL which becomes negative when cast to a signed value. Fix it to use MAX_LFS_FILESIZE which casts properly to a positive signed value. Signed-off-by: Jeff Layton Reviewed-by: Johannes Weiner Acked-by: Steve French Reviewed-by: Christoph Hellwig Cc: Al Viro Cc: Robert Love Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/fs/libfs.c b/fs/libfs.c index ddfa899..dcec3d3 100644 --- a/fs/libfs.c +++ b/fs/libfs.c @@ -217,7 +217,7 @@ int get_sb_pseudo(struct file_system_type *fs_type, char *name, return PTR_ERR(s); s->s_flags = MS_NOUSER; - s->s_maxbytes = ~0ULL; + s->s_maxbytes = MAX_LFS_FILESIZE; s->s_blocksize = PAGE_SIZE; s->s_blocksize_bits = PAGE_SHIFT; s->s_magic = magic; -- cgit v0.10.2 From 0753ba01e126020bf0f8150934903b48935b697d Mon Sep 17 00:00:00 2001 From: KOSAKI Motohiro Date: Tue, 18 Aug 2009 14:11:10 -0700 Subject: mm: revert "oom: move oom_adj value" The commit 2ff05b2b (oom: move oom_adj value) moveed the oom_adj value to the mm_struct. It was a very good first step for sanitize OOM. However Paul Menage reported the commit makes regression to his job scheduler. Current OOM logic can kill OOM_DISABLED process. Why? His program has the code of similar to the following. ... set_oom_adj(OOM_DISABLE); /* The job scheduler never killed by oom */ ... if (vfork() == 0) { set_oom_adj(0); /* Invoked child can be killed */ execve("foo-bar-cmd"); } .... vfork() parent and child are shared the same mm_struct. then above set_oom_adj(0) doesn't only change oom_adj for vfork() child, it's also change oom_adj for vfork() parent. Then, vfork() parent (job scheduler) lost OOM immune and it was killed. Actually, fork-setting-exec idiom is very frequently used in userland program. We must not break this assumption. Then, this patch revert commit 2ff05b2b and related commit. Reverted commit list --------------------- - commit 2ff05b2b4e (oom: move oom_adj value from task_struct to mm_struct) - commit 4d8b9135c3 (oom: avoid unnecessary mm locking and scanning for OOM_DISABLE) - commit 8123681022 (oom: only oom kill exiting tasks with attached memory) - commit 933b787b57 (mm: copy over oom_adj value at fork time) Signed-off-by: KOSAKI Motohiro Cc: Paul Menage Cc: David Rientjes Cc: KAMEZAWA Hiroyuki Cc: Rik van Riel Cc: Linus Torvalds Cc: Oleg Nesterov Cc: Nick Piggin Cc: Mel Gorman Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/Documentation/filesystems/proc.txt b/Documentation/filesystems/proc.txt index fad18f9..ffead13 100644 --- a/Documentation/filesystems/proc.txt +++ b/Documentation/filesystems/proc.txt @@ -1167,13 +1167,11 @@ CHAPTER 3: PER-PROCESS PARAMETERS 3.1 /proc//oom_adj - Adjust the oom-killer score ------------------------------------------------------ -This file can be used to adjust the score used to select which processes should -be killed in an out-of-memory situation. The oom_adj value is a characteristic -of the task's mm, so all threads that share an mm with pid will have the same -oom_adj value. A high value will increase the likelihood of this process being -killed by the oom-killer. Valid values are in the range -16 to +15 as -explained below and a special value of -17, which disables oom-killing -altogether for threads sharing pid's mm. +This file can be used to adjust the score used to select which processes +should be killed in an out-of-memory situation. Giving it a high score will +increase the likelihood of this process being killed by the oom-killer. Valid +values are in the range -16 to +15, plus the special value -17, which disables +oom-killing altogether for this process. The process to be killed in an out-of-memory situation is selected among all others based on its badness score. This value equals the original memory size of the process @@ -1187,9 +1185,6 @@ the parent's score if they do not share the same memory. Thus forking servers are the prime candidates to be killed. Having only one 'hungry' child will make parent less preferable than the child. -/proc//oom_adj cannot be changed for kthreads since they are immune from -oom-killing already. - /proc//oom_score shows process' current badness score. The following heuristics are then applied: diff --git a/fs/proc/base.c b/fs/proc/base.c index 175db25..6f742f6 100644 --- a/fs/proc/base.c +++ b/fs/proc/base.c @@ -1003,12 +1003,7 @@ static ssize_t oom_adjust_read(struct file *file, char __user *buf, if (!task) return -ESRCH; - task_lock(task); - if (task->mm) - oom_adjust = task->mm->oom_adj; - else - oom_adjust = OOM_DISABLE; - task_unlock(task); + oom_adjust = task->oomkilladj; put_task_struct(task); len = snprintf(buffer, sizeof(buffer), "%i\n", oom_adjust); @@ -1037,19 +1032,11 @@ static ssize_t oom_adjust_write(struct file *file, const char __user *buf, task = get_proc_task(file->f_path.dentry->d_inode); if (!task) return -ESRCH; - task_lock(task); - if (!task->mm) { - task_unlock(task); - put_task_struct(task); - return -EINVAL; - } - if (oom_adjust < task->mm->oom_adj && !capable(CAP_SYS_RESOURCE)) { - task_unlock(task); + if (oom_adjust < task->oomkilladj && !capable(CAP_SYS_RESOURCE)) { put_task_struct(task); return -EACCES; } - task->mm->oom_adj = oom_adjust; - task_unlock(task); + task->oomkilladj = oom_adjust; put_task_struct(task); if (end - buffer == 0) return -EIO; diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h index 7acc843..0042090 100644 --- a/include/linux/mm_types.h +++ b/include/linux/mm_types.h @@ -240,8 +240,6 @@ struct mm_struct { unsigned long saved_auxv[AT_VECTOR_SIZE]; /* for /proc/PID/auxv */ - s8 oom_adj; /* OOM kill score adjustment (bit shift) */ - cpumask_t cpu_vm_mask; /* Architecture-specific MM context */ diff --git a/include/linux/sched.h b/include/linux/sched.h index 3ab08e4..0f1ea4a 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -1198,6 +1198,7 @@ struct task_struct { * a short time */ unsigned char fpu_counter; + s8 oomkilladj; /* OOM kill score adjustment (bit shift). */ #ifdef CONFIG_BLK_DEV_IO_TRACE unsigned int btrace_seq; #endif diff --git a/kernel/fork.c b/kernel/fork.c index 021e113..144326b 100644 --- a/kernel/fork.c +++ b/kernel/fork.c @@ -426,7 +426,6 @@ static struct mm_struct * mm_init(struct mm_struct * mm, struct task_struct *p) init_rwsem(&mm->mmap_sem); INIT_LIST_HEAD(&mm->mmlist); mm->flags = (current->mm) ? current->mm->flags : default_dump_filter; - mm->oom_adj = (current->mm) ? current->mm->oom_adj : 0; mm->core_state = NULL; mm->nr_ptes = 0; set_mm_counter(mm, file_rss, 0); diff --git a/mm/oom_kill.c b/mm/oom_kill.c index 175a67a..a7b2460 100644 --- a/mm/oom_kill.c +++ b/mm/oom_kill.c @@ -58,7 +58,6 @@ unsigned long badness(struct task_struct *p, unsigned long uptime) unsigned long points, cpu_time, run_time; struct mm_struct *mm; struct task_struct *child; - int oom_adj; task_lock(p); mm = p->mm; @@ -66,11 +65,6 @@ unsigned long badness(struct task_struct *p, unsigned long uptime) task_unlock(p); return 0; } - oom_adj = mm->oom_adj; - if (oom_adj == OOM_DISABLE) { - task_unlock(p); - return 0; - } /* * The memory size of the process is the basis for the badness. @@ -154,15 +148,15 @@ unsigned long badness(struct task_struct *p, unsigned long uptime) points /= 8; /* - * Adjust the score by oom_adj. + * Adjust the score by oomkilladj. */ - if (oom_adj) { - if (oom_adj > 0) { + if (p->oomkilladj) { + if (p->oomkilladj > 0) { if (!points) points = 1; - points <<= oom_adj; + points <<= p->oomkilladj; } else - points >>= -(oom_adj); + points >>= -(p->oomkilladj); } #ifdef DEBUG @@ -257,8 +251,11 @@ static struct task_struct *select_bad_process(unsigned long *ppoints, *ppoints = ULONG_MAX; } + if (p->oomkilladj == OOM_DISABLE) + continue; + points = badness(p, uptime.tv_sec); - if (points > *ppoints) { + if (points > *ppoints || !chosen) { chosen = p; *ppoints = points; } @@ -307,7 +304,8 @@ static void dump_tasks(const struct mem_cgroup *mem) } printk(KERN_INFO "[%5d] %5d %5d %8lu %8lu %3d %3d %s\n", p->pid, __task_cred(p)->uid, p->tgid, mm->total_vm, - get_mm_rss(mm), (int)task_cpu(p), mm->oom_adj, p->comm); + get_mm_rss(mm), (int)task_cpu(p), p->oomkilladj, + p->comm); task_unlock(p); } while_each_thread(g, p); } @@ -325,8 +323,11 @@ static void __oom_kill_task(struct task_struct *p, int verbose) return; } - if (!p->mm) + if (!p->mm) { + WARN_ON(1); + printk(KERN_WARNING "tried to kill an mm-less task!\n"); return; + } if (verbose) printk(KERN_ERR "Killed process %d (%s)\n", @@ -348,13 +349,28 @@ static int oom_kill_task(struct task_struct *p) struct mm_struct *mm; struct task_struct *g, *q; - task_lock(p); mm = p->mm; - if (!mm || mm->oom_adj == OOM_DISABLE) { - task_unlock(p); + + /* WARNING: mm may not be dereferenced since we did not obtain its + * value from get_task_mm(p). This is OK since all we need to do is + * compare mm to q->mm below. + * + * Furthermore, even if mm contains a non-NULL value, p->mm may + * change to NULL at any time since we do not hold task_lock(p). + * However, this is of no concern to us. + */ + + if (mm == NULL) return 1; - } - task_unlock(p); + + /* + * Don't kill the process if any threads are set to OOM_DISABLE + */ + do_each_thread(g, q) { + if (q->mm == mm && q->oomkilladj == OOM_DISABLE) + return 1; + } while_each_thread(g, q); + __oom_kill_task(p, 1); /* @@ -377,11 +393,10 @@ static int oom_kill_process(struct task_struct *p, gfp_t gfp_mask, int order, struct task_struct *c; if (printk_ratelimit()) { - task_lock(current); printk(KERN_WARNING "%s invoked oom-killer: " - "gfp_mask=0x%x, order=%d, oom_adj=%d\n", - current->comm, gfp_mask, order, - current->mm ? current->mm->oom_adj : OOM_DISABLE); + "gfp_mask=0x%x, order=%d, oomkilladj=%d\n", + current->comm, gfp_mask, order, current->oomkilladj); + task_lock(current); cpuset_print_task_mems_allowed(current); task_unlock(current); dump_stack(); @@ -394,9 +409,8 @@ static int oom_kill_process(struct task_struct *p, gfp_t gfp_mask, int order, /* * If the task is already exiting, don't alarm the sysadmin or kill * its children or threads, just set TIF_MEMDIE so it can die quickly - * if its mm is still attached. */ - if (p->mm && (p->flags & PF_EXITING)) { + if (p->flags & PF_EXITING) { __oom_kill_task(p, 0); return 0; } -- cgit v0.10.2 From b2503a9408e44eb0531adc3436c513ea70f91c42 Mon Sep 17 00:00:00 2001 From: Andrew Morton Date: Tue, 18 Aug 2009 14:11:12 -0700 Subject: mmc: add the new linux-mmc mailing list to MAINTAINERS There are a number of individual MMC drivers listed in MAINTAINERS. I didn't modify those records. Perhaps I should have. Cc: Cc: Manuel Lauss Cc: Nicolas Pitre Cc: Pierre Ossman Cc: Pavel Pisa Cc: Jarkko Lavinen Cc: Ben Dooks Cc: Sascha Sommer Cc: Ian Molton Cc: Joseph Chan Cc: Harald Welte Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/MAINTAINERS b/MAINTAINERS index ac0fdfd..60299a9 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -3429,6 +3429,7 @@ F: drivers/mfd/ MULTIMEDIA CARD (MMC), SECURE DIGITAL (SD) AND SDIO SUBSYSTEM S: Orphan +L: linux-mmc@vger.kernel.org F: drivers/mmc/ F: include/linux/mmc/ -- cgit v0.10.2 From b8978784544e8b4e8fbacb558df8580957d4f8a5 Mon Sep 17 00:00:00 2001 From: Ben Dooks Date: Tue, 18 Aug 2009 14:11:16 -0700 Subject: spi_s3c24xx: fix clock rate calculation Currently the clock rate calculation may round as pleased, which means that it is possible that we will round down and end up with a faster clock rate than intended. Change the calculation to use DIV_ROUND_UP() to ensure that we end up with a clock rate either the same as or lower than the user requested one. Signed-off-by: Ben Dooks Cc: David Brownell Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/drivers/spi/spi_s3c24xx.c b/drivers/spi/spi_s3c24xx.c index e0d44af..590be85 100644 --- a/drivers/spi/spi_s3c24xx.c +++ b/drivers/spi/spi_s3c24xx.c @@ -111,6 +111,7 @@ static int s3c24xx_spi_setupxfer(struct spi_device *spi, unsigned int bpw; unsigned int hz; unsigned int div; + unsigned long clk; bpw = t ? t->bits_per_word : spi->bits_per_word; hz = t ? t->speed_hz : spi->max_speed_hz; @@ -120,20 +121,16 @@ static int s3c24xx_spi_setupxfer(struct spi_device *spi, return -EINVAL; } - div = clk_get_rate(hw->clk) / hz; - - /* is clk = pclk / (2 * (pre+1)), or is it - * clk = (pclk * 2) / ( pre + 1) */ - - div /= 2; - - if (div > 0) - div -= 1; + clk = clk_get_rate(hw->clk); + div = DIV_ROUND_UP(clk, hz * 2) - 1; if (div > 255) div = 255; - dev_dbg(&spi->dev, "setting pre-scaler to %d (hz %d)\n", div, hz); + dev_dbg(&spi->dev, "setting pre-scaler to %d (wanted %d, got %ld)\n", + div, hz, clk / (2 * (div + 1))); + + writeb(div, hw->regs + S3C2410_SPPRE); spin_lock(&hw->bitbang.lock); -- cgit v0.10.2 From 191529756633052680dd9d23ad63744ca5aa02a1 Mon Sep 17 00:00:00 2001 From: Ben Dooks Date: Tue, 18 Aug 2009 14:11:17 -0700 Subject: spi_s3c24xx: fix transfer setup code Since the changes to the bitbang driver, there is the possibility we will be called with either the speed_hz or bpw values zero. We take these to mean that the default values (8 bits per word, or maximum bus speed). Signed-off-by: Ben Dooks Cc: David Brownell Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/drivers/spi/spi_s3c24xx.c b/drivers/spi/spi_s3c24xx.c index 590be85..3f3119d 100644 --- a/drivers/spi/spi_s3c24xx.c +++ b/drivers/spi/spi_s3c24xx.c @@ -116,6 +116,12 @@ static int s3c24xx_spi_setupxfer(struct spi_device *spi, bpw = t ? t->bits_per_word : spi->bits_per_word; hz = t ? t->speed_hz : spi->max_speed_hz; + if (!bpw) + bpw = 8; + + if (!hz) + hz = spi->max_speed_hz; + if (bpw != 8) { dev_err(&spi->dev, "invalid bits-per-word (%d)\n", bpw); return -EINVAL; -- cgit v0.10.2 From 28d7a6ae92c099d81cbea08c20be0d2cf7ccd7ca Mon Sep 17 00:00:00 2001 From: Graff Yang Date: Tue, 18 Aug 2009 14:11:17 -0700 Subject: nommu: check fd read permission in validate_mmap_request() According to the POSIX (1003.1-2008), the file descriptor shall have been opened with read permission, regardless of the protection options specified to mmap(). The ltp test cases mmap06/07 need this. Signed-off-by: Graff Yang Acked-by: Paul Mundt Signed-off-by: David Howells Acked-by: Greg Ungerer Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/mm/nommu.c b/mm/nommu.c index 28754c4..4bde489 100644 --- a/mm/nommu.c +++ b/mm/nommu.c @@ -919,6 +919,10 @@ static int validate_mmap_request(struct file *file, if (!file->f_op->read) capabilities &= ~BDI_CAP_MAP_COPY; + /* The file shall have been opened with read permission. */ + if (!(file->f_mode & FMODE_READ)) + return -EACCES; + if (flags & MAP_SHARED) { /* do checks for writing, appending and locking */ if ((prot & PROT_WRITE) && -- cgit v0.10.2 From 503f7944fac68f4fdf71f8ebd06907f51eb64515 Mon Sep 17 00:00:00 2001 From: Joe Perches Date: Tue, 18 Aug 2009 14:11:18 -0700 Subject: REPORTING-BUGS: add get_maintainer.pl blurb Signed-off-by: Joe Perches Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/REPORTING-BUGS b/REPORTING-BUGS index ab0c566..55a6074 100644 --- a/REPORTING-BUGS +++ b/REPORTING-BUGS @@ -15,7 +15,10 @@ worry too much about getting the wrong person. If you are unsure send it to the person responsible for the code relevant to what you were doing. If it occurs repeatably try and describe how to recreate it. That is worth even more than the oops itself. The list of maintainers and -mailing lists is in the MAINTAINERS file in this directory. +mailing lists is in the MAINTAINERS file in this directory. If you +know the file name that causes the problem you can use the following +command in this directory to find some of the maintainers of that file: + perl scripts/get_maintainer.pl -f If it is a security bug, please copy the Security Contact listed in the MAINTAINERS file. They can help coordinate bugfix and disclosure. -- cgit v0.10.2 From 7f9cfb31030737a7fc9a1cbca3fd01bec184c849 Mon Sep 17 00:00:00 2001 From: Bo Liu Date: Tue, 18 Aug 2009 14:11:19 -0700 Subject: mm: build_zonelists(): move clear node_load[] to __build_all_zonelists() If node_load[] is cleared everytime build_zonelists() is called,node_load[] will have no help to find the next node that should appear in the given node's fallback list. Because of the bug, zonelist's node_order is not calculated as expected. This bug affects on big machine, which has asynmetric node distance. [synmetric NUMA's node distance] 0 1 2 0 10 12 12 1 12 10 12 2 12 12 10 [asynmetric NUMA's node distance] 0 1 2 0 10 12 20 1 12 10 14 2 20 14 10 This (my bug) is very old but no one has reported this for a long time. Maybe because the number of asynmetric NUMA is very small and they use cpuset for customizing node memory allocation fallback. [akpm@linux-foundation.org: fix CONFIG_NUMA=n build] Signed-off-by: Bo Liu Reviewed-by: KAMEZAWA Hiroyuki Cc: Mel Gorman Cc: Christoph Lameter Cc: Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/mm/page_alloc.c b/mm/page_alloc.c index d052abb..5cc986e 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -2544,7 +2544,6 @@ static void build_zonelists(pg_data_t *pgdat) prev_node = local_node; nodes_clear(used_mask); - memset(node_load, 0, sizeof(node_load)); memset(node_order, 0, sizeof(node_order)); j = 0; @@ -2653,6 +2652,9 @@ static int __build_all_zonelists(void *dummy) { int nid; +#ifdef CONFIG_NUMA + memset(node_load, 0, sizeof(node_load)); +#endif for_each_online_node(nid) { pg_data_t *pgdat = NODE_DATA(nid); -- cgit v0.10.2 From eda1e328556565e211b7450250e40d6de751563a Mon Sep 17 00:00:00 2001 From: Jiri Olsa Date: Tue, 11 Aug 2009 17:29:04 +0200 Subject: tracing: handle broken names in ftrace filter If one filter item (for set_ftrace_filter and set_ftrace_notrace) is being setup by more than 1 consecutive writes (FTRACE_ITER_CONT flag), it won't be handled corretly. I used following program to test/verify: [snip] #include #include #include #include #include int main(int argc, char **argv) { int fd, i; char *file = argv[1]; if (-1 == (fd = open(file, O_WRONLY))) { perror("open failed"); return -1; } for(i = 0; i < (argc - 2); i++) { int len = strlen(argv[2+i]); int cnt, off = 0; while(len) { cnt = write(fd, argv[2+i] + off, len); len -= cnt; off += cnt; } } close(fd); return 0; } [snip] before change: sh-4.0# echo > ./set_ftrace_filter sh-4.0# /test ./set_ftrace_filter "sys" "_open " sh-4.0# cat ./set_ftrace_filter #### all functions enabled #### sh-4.0# after change: sh-4.0# echo > ./set_ftrace_notrace sh-4.0# test ./set_ftrace_notrace "sys" "_open " sh-4.0# cat ./set_ftrace_notrace sys_open sh-4.0# Signed-off-by: Jiri Olsa LKML-Reference: <20090811152904.GA26065@jolsa.lab.eng.brq.redhat.com> Signed-off-by: Steven Rostedt diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c index 1e1d23c..25edd5c 100644 --- a/kernel/trace/ftrace.c +++ b/kernel/trace/ftrace.c @@ -2278,7 +2278,11 @@ ftrace_regex_write(struct file *file, const char __user *ubuf, read++; cnt--; - if (!(iter->flags & ~FTRACE_ITER_CONT)) { + /* + * If the parser haven't finished with the last write, + * continue reading the user input without skipping spaces. + */ + if (!(iter->flags & FTRACE_ITER_CONT)) { /* skip white space */ while (cnt && isspace(ch)) { ret = get_user(ch, ubuf++); @@ -2288,8 +2292,9 @@ ftrace_regex_write(struct file *file, const char __user *ubuf, cnt--; } + /* only spaces were written */ if (isspace(ch)) { - file->f_pos += read; + *ppos += read; ret = read; goto out; } @@ -2319,12 +2324,12 @@ ftrace_regex_write(struct file *file, const char __user *ubuf, if (ret) goto out; iter->buffer_idx = 0; - } else + } else { iter->flags |= FTRACE_ITER_CONT; + iter->buffer[iter->buffer_idx++] = ch; + } - - file->f_pos += read; - + *ppos += read; ret = read; out: mutex_unlock(&ftrace_regex_lock); -- cgit v0.10.2 From e2c6cbd9ace61039d3de39e717195e38f1492aee Mon Sep 17 00:00:00 2001 From: Mathieu Desnoyers Date: Tue, 18 Aug 2009 20:16:55 -0700 Subject: sparc: sys32.S incorrect compat-layer splice() system call I think arch/sparc/kernel/sys32.S has an incorrect splice definition: SIGN2(sys32_splice, sys_splice, %o0, %o1) The splice() prototype looks like : long splice(int fd_in, loff_t *off_in, int fd_out, loff_t *off_out, size_t len, unsigned int flags); So I think we should have : SIGN2(sys32_splice, sys_splice, %o0, %o2) Signed-off-by: Mathieu Desnoyers Signed-off-by: David S. Miller diff --git a/arch/sparc/kernel/sys32.S b/arch/sparc/kernel/sys32.S index 577f8fa..aed9486 100644 --- a/arch/sparc/kernel/sys32.S +++ b/arch/sparc/kernel/sys32.S @@ -134,7 +134,7 @@ SIGN1(sys32_getpeername, sys_getpeername, %o0) SIGN1(sys32_getsockname, sys_getsockname, %o0) SIGN2(sys32_ioprio_get, sys_ioprio_get, %o0, %o1) SIGN3(sys32_ioprio_set, sys_ioprio_set, %o0, %o1, %o2) -SIGN2(sys32_splice, sys_splice, %o0, %o1) +SIGN2(sys32_splice, sys_splice, %o0, %o2) SIGN2(sys32_sync_file_range, compat_sync_file_range, %o0, %o5) SIGN2(sys32_tee, sys_tee, %o0, %o1) SIGN1(sys32_vmsplice, compat_sys_vmsplice, %o0) -- cgit v0.10.2 From e7a5965a81a29a13cd4994fa23a6a7a1488bcdb6 Mon Sep 17 00:00:00 2001 From: Roel Kluin Date: Tue, 18 Aug 2009 20:21:40 -0700 Subject: yellowfin: Fix buffer underrun after dev_alloc_skb() failure yellowfin_init_ring() needs to clean up if dev_alloc_skb() fails and should pass an error status up to the caller. This also prevents an buffer underrun if failure occurred in the first iteration. yellowfin_open() which calls yellowfin_init_ring() should free its requested irq upon failure. Signed-off-by: Roel Kluin Signed-off-by: David S. Miller diff --git a/drivers/net/yellowfin.c b/drivers/net/yellowfin.c index a075801..c2fd618 100644 --- a/drivers/net/yellowfin.c +++ b/drivers/net/yellowfin.c @@ -346,7 +346,7 @@ static int netdev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd); static int yellowfin_open(struct net_device *dev); static void yellowfin_timer(unsigned long data); static void yellowfin_tx_timeout(struct net_device *dev); -static void yellowfin_init_ring(struct net_device *dev); +static int yellowfin_init_ring(struct net_device *dev); static int yellowfin_start_xmit(struct sk_buff *skb, struct net_device *dev); static irqreturn_t yellowfin_interrupt(int irq, void *dev_instance); static int yellowfin_rx(struct net_device *dev); @@ -573,19 +573,24 @@ static int yellowfin_open(struct net_device *dev) { struct yellowfin_private *yp = netdev_priv(dev); void __iomem *ioaddr = yp->base; - int i; + int i, ret; /* Reset the chip. */ iowrite32(0x80000000, ioaddr + DMACtrl); - i = request_irq(dev->irq, &yellowfin_interrupt, IRQF_SHARED, dev->name, dev); - if (i) return i; + ret = request_irq(dev->irq, &yellowfin_interrupt, IRQF_SHARED, dev->name, dev); + if (ret) + return ret; if (yellowfin_debug > 1) printk(KERN_DEBUG "%s: yellowfin_open() irq %d.\n", dev->name, dev->irq); - yellowfin_init_ring(dev); + ret = yellowfin_init_ring(dev); + if (ret) { + free_irq(dev->irq, dev); + return ret; + } iowrite32(yp->rx_ring_dma, ioaddr + RxPtr); iowrite32(yp->tx_ring_dma, ioaddr + TxPtr); @@ -725,10 +730,10 @@ static void yellowfin_tx_timeout(struct net_device *dev) } /* Initialize the Rx and Tx rings, along with various 'dev' bits. */ -static void yellowfin_init_ring(struct net_device *dev) +static int yellowfin_init_ring(struct net_device *dev) { struct yellowfin_private *yp = netdev_priv(dev); - int i; + int i, j; yp->tx_full = 0; yp->cur_rx = yp->cur_tx = 0; @@ -753,6 +758,11 @@ static void yellowfin_init_ring(struct net_device *dev) yp->rx_ring[i].addr = cpu_to_le32(pci_map_single(yp->pci_dev, skb->data, yp->rx_buf_sz, PCI_DMA_FROMDEVICE)); } + if (i != RX_RING_SIZE) { + for (j = 0; j < i; j++) + dev_kfree_skb(yp->rx_skbuff[j]); + return -ENOMEM; + } yp->rx_ring[i-1].dbdma_cmd = cpu_to_le32(CMD_STOP); yp->dirty_rx = (unsigned int)(i - RX_RING_SIZE); @@ -769,8 +779,6 @@ static void yellowfin_init_ring(struct net_device *dev) yp->tx_ring[--i].dbdma_cmd = cpu_to_le32(CMD_STOP | BRANCH_ALWAYS); #else { - int j; - /* Tx ring needs a pair of descriptors, the second for the status. */ for (i = 0; i < TX_RING_SIZE; i++) { j = 2*i; @@ -805,7 +813,7 @@ static void yellowfin_init_ring(struct net_device *dev) } #endif yp->tx_tail_desc = &yp->tx_status[0]; - return; + return 0; } static int yellowfin_start_xmit(struct sk_buff *skb, struct net_device *dev) -- cgit v0.10.2 From 80e6914db18e702549a15dea36fa7ace17f25c50 Mon Sep 17 00:00:00 2001 From: Dave Airlie Date: Mon, 17 Aug 2009 10:22:37 +1000 Subject: drm/radeon/kms: although LVDS might be possible on crtc 1 don't do it. LVDS always requests RMX_FULL, we need to fix it so that doesn't happen before we can enable LVDS on crtc 1. Signed-off-by: Dave Airlie diff --git a/drivers/gpu/drm/radeon/radeon_legacy_encoders.c b/drivers/gpu/drm/radeon/radeon_legacy_encoders.c index 34d0f58..9322675 100644 --- a/drivers/gpu/drm/radeon/radeon_legacy_encoders.c +++ b/drivers/gpu/drm/radeon/radeon_legacy_encoders.c @@ -1066,6 +1066,7 @@ radeon_add_legacy_encoder(struct drm_device *dev, uint32_t encoder_id, uint32_t switch (radeon_encoder->encoder_id) { case ENCODER_OBJECT_ID_INTERNAL_LVDS: + encoder->possible_crtcs = 0x1; drm_encoder_init(dev, encoder, &radeon_legacy_lvds_enc_funcs, DRM_MODE_ENCODER_LVDS); drm_encoder_helper_add(encoder, &radeon_legacy_lvds_helper_funcs); if (rdev->is_atom_bios) -- cgit v0.10.2 From bf8e828b00a5b6a0fea16f452be578c060d57d64 Mon Sep 17 00:00:00 2001 From: Dave Airlie Date: Mon, 17 Aug 2009 10:20:47 +1000 Subject: drm/radeon/kms: memset the allocated framebuffer before using it. This gets rid of some ugliness, we shuold probably find a way for the GPU to zero this. Signed-off-by: Dave Airlie diff --git a/drivers/gpu/drm/radeon/radeon_fb.c b/drivers/gpu/drm/radeon/radeon_fb.c index 3206c0a..ec383ed 100644 --- a/drivers/gpu/drm/radeon/radeon_fb.c +++ b/drivers/gpu/drm/radeon/radeon_fb.c @@ -574,6 +574,8 @@ int radeonfb_create(struct radeon_device *rdev, goto out_unref; } + memset_io(fbptr, 0, aligned_size); + strcpy(info->fix.id, "radeondrmfb"); info->fix.type = FB_TYPE_PACKED_PIXELS; info->fix.visual = FB_VISUAL_TRUECOLOR; -- cgit v0.10.2 From 6a719e05330ef19acd9392dbbfb95a774776dee5 Mon Sep 17 00:00:00 2001 From: Dave Airlie Date: Mon, 17 Aug 2009 10:19:51 +1000 Subject: drm/kms/radeon: cleanup combios TV table like DDX. The fallback case wasn't getting executed properly if there was no TV table, which my T42 M7 hasn't got. Signed-off-by: Dave Airlie diff --git a/drivers/gpu/drm/radeon/radeon_combios.c b/drivers/gpu/drm/radeon/radeon_combios.c index afc4db2..2a027e0 100644 --- a/drivers/gpu/drm/radeon/radeon_combios.c +++ b/drivers/gpu/drm/radeon/radeon_combios.c @@ -685,23 +685,15 @@ static const uint32_t default_tvdac_adj[CHIP_LAST] = { 0x00780000, /* rs480 */ }; -static struct radeon_encoder_tv_dac - *radeon_legacy_get_tv_dac_info_from_table(struct radeon_device *rdev) +static void radeon_legacy_get_tv_dac_info_from_table(struct radeon_device *rdev, + struct radeon_encoder_tv_dac *tv_dac) { - struct radeon_encoder_tv_dac *tv_dac = NULL; - - tv_dac = kzalloc(sizeof(struct radeon_encoder_tv_dac), GFP_KERNEL); - - if (!tv_dac) - return NULL; - tv_dac->ps2_tvdac_adj = default_tvdac_adj[rdev->family]; if ((rdev->flags & RADEON_IS_MOBILITY) && (rdev->family == CHIP_RV250)) tv_dac->ps2_tvdac_adj = 0x00880000; tv_dac->pal_tvdac_adj = tv_dac->ps2_tvdac_adj; tv_dac->ntsc_tvdac_adj = tv_dac->ps2_tvdac_adj; - - return tv_dac; + return; } struct radeon_encoder_tv_dac *radeon_combios_get_tv_dac_info(struct @@ -713,19 +705,18 @@ struct radeon_encoder_tv_dac *radeon_combios_get_tv_dac_info(struct uint16_t dac_info; uint8_t rev, bg, dac; struct radeon_encoder_tv_dac *tv_dac = NULL; + int found = 0; + + tv_dac = kzalloc(sizeof(struct radeon_encoder_tv_dac), GFP_KERNEL); + if (!tv_dac) + return NULL; if (rdev->bios == NULL) - return radeon_legacy_get_tv_dac_info_from_table(rdev); + goto out; /* first check TV table */ dac_info = combios_get_table_offset(dev, COMBIOS_TV_INFO_TABLE); if (dac_info) { - tv_dac = - kzalloc(sizeof(struct radeon_encoder_tv_dac), GFP_KERNEL); - - if (!tv_dac) - return NULL; - rev = RBIOS8(dac_info + 0x3); if (rev > 4) { bg = RBIOS8(dac_info + 0xc) & 0xf; @@ -739,6 +730,7 @@ struct radeon_encoder_tv_dac *radeon_combios_get_tv_dac_info(struct bg = RBIOS8(dac_info + 0x10) & 0xf; dac = RBIOS8(dac_info + 0x11) & 0xf; tv_dac->ntsc_tvdac_adj = (bg << 16) | (dac << 20); + found = 1; } else if (rev > 1) { bg = RBIOS8(dac_info + 0xc) & 0xf; dac = (RBIOS8(dac_info + 0xc) >> 4) & 0xf; @@ -751,22 +743,15 @@ struct radeon_encoder_tv_dac *radeon_combios_get_tv_dac_info(struct bg = RBIOS8(dac_info + 0xe) & 0xf; dac = (RBIOS8(dac_info + 0xe) >> 4) & 0xf; tv_dac->ntsc_tvdac_adj = (bg << 16) | (dac << 20); + found = 1; } - tv_dac->tv_std = radeon_combios_get_tv_info(encoder); - - } else { + } + if (!found) { /* then check CRT table */ dac_info = combios_get_table_offset(dev, COMBIOS_CRT_INFO_TABLE); if (dac_info) { - tv_dac = - kzalloc(sizeof(struct radeon_encoder_tv_dac), - GFP_KERNEL); - - if (!tv_dac) - return NULL; - rev = RBIOS8(dac_info) & 0x3; if (rev < 2) { bg = RBIOS8(dac_info + 0x3) & 0xf; @@ -775,6 +760,7 @@ struct radeon_encoder_tv_dac *radeon_combios_get_tv_dac_info(struct (bg << 16) | (dac << 20); tv_dac->pal_tvdac_adj = tv_dac->ps2_tvdac_adj; tv_dac->ntsc_tvdac_adj = tv_dac->ps2_tvdac_adj; + found = 1; } else { bg = RBIOS8(dac_info + 0x4) & 0xf; dac = RBIOS8(dac_info + 0x5) & 0xf; @@ -782,13 +768,17 @@ struct radeon_encoder_tv_dac *radeon_combios_get_tv_dac_info(struct (bg << 16) | (dac << 20); tv_dac->pal_tvdac_adj = tv_dac->ps2_tvdac_adj; tv_dac->ntsc_tvdac_adj = tv_dac->ps2_tvdac_adj; + found = 1; } } else { DRM_INFO("No TV DAC info found in BIOS\n"); - return radeon_legacy_get_tv_dac_info_from_table(rdev); } } +out: + if (!found) /* fallback to defaults */ + radeon_legacy_get_tv_dac_info_from_table(rdev, tv_dac); + return tv_dac; } -- cgit v0.10.2 From 5ef5f72febfea420ce58f670bad83830a5e5e3de Mon Sep 17 00:00:00 2001 From: Dave Airlie Date: Mon, 17 Aug 2009 13:11:23 +1000 Subject: drm/kms: teardown crtc correctly when fb is destroyed. If userspace destroys a framebuffer that is in use on a crtc, don't just null it out, tear down the crtc properly so the hw gets turned off. Signed-off-by: Dave Airlie diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c index 33be210..2f631c7 100644 --- a/drivers/gpu/drm/drm_crtc.c +++ b/drivers/gpu/drm/drm_crtc.c @@ -258,31 +258,6 @@ void *drm_mode_object_find(struct drm_device *dev, uint32_t id, uint32_t type) EXPORT_SYMBOL(drm_mode_object_find); /** - * drm_crtc_from_fb - find the CRTC structure associated with an fb - * @dev: DRM device - * @fb: framebuffer in question - * - * LOCKING: - * Caller must hold mode_config lock. - * - * Find CRTC in the mode_config structure that matches @fb. - * - * RETURNS: - * Pointer to the CRTC or NULL if it wasn't found. - */ -struct drm_crtc *drm_crtc_from_fb(struct drm_device *dev, - struct drm_framebuffer *fb) -{ - struct drm_crtc *crtc; - - list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { - if (crtc->fb == fb) - return crtc; - } - return NULL; -} - -/** * drm_framebuffer_init - initialize a framebuffer * @dev: DRM device * @@ -328,11 +303,20 @@ void drm_framebuffer_cleanup(struct drm_framebuffer *fb) { struct drm_device *dev = fb->dev; struct drm_crtc *crtc; + struct drm_mode_set set; + int ret; /* remove from any CRTC */ list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { - if (crtc->fb == fb) - crtc->fb = NULL; + if (crtc->fb == fb) { + /* should turn off the crtc */ + memset(&set, 0, sizeof(struct drm_mode_set)); + set.crtc = crtc; + set.fb = NULL; + ret = crtc->funcs->set_config(&set); + if (ret) + DRM_ERROR("failed to reset crtc %p when fb was deleted\n", crtc); + } } drm_mode_object_put(dev, &fb->base); @@ -1511,7 +1495,7 @@ int drm_mode_setcrtc(struct drm_device *dev, void *data, set.mode = mode; set.connectors = connector_set; set.num_connectors = crtc_req->count_connectors; - set.fb =fb; + set.fb = fb; ret = crtc->funcs->set_config(&set); out: -- cgit v0.10.2 From 456d8991a795ff5e44dbc1c2a7f8d5b4ed675866 Mon Sep 17 00:00:00 2001 From: Wan ZongShun Date: Tue, 18 Aug 2009 23:34:58 -0700 Subject: net: Rename MAC platform driver for w90p910 platform Due to I modified the corresponding platform device name, so I make the patch to rename MAC platform driver for w90p910 platform. Signed-off-by: Wan ZongShun Signed-off-by: David S. Miller diff --git a/drivers/net/arm/w90p910_ether.c b/drivers/net/arm/w90p910_ether.c index 616fb79..ddd231c 100644 --- a/drivers/net/arm/w90p910_ether.c +++ b/drivers/net/arm/w90p910_ether.c @@ -1080,7 +1080,7 @@ static struct platform_driver w90p910_ether_driver = { .probe = w90p910_ether_probe, .remove = __devexit_p(w90p910_ether_remove), .driver = { - .name = "w90p910-emc", + .name = "nuc900-emc", .owner = THIS_MODULE, }, }; @@ -1101,5 +1101,5 @@ module_exit(w90p910_ether_exit); MODULE_AUTHOR("Wan ZongShun "); MODULE_DESCRIPTION("w90p910 MAC driver!"); MODULE_LICENSE("GPL"); -MODULE_ALIAS("platform:w90p910-emc"); +MODULE_ALIAS("platform:nuc900-emc"); -- cgit v0.10.2 From a9919646d12a13bea7eb74b996686f900dffb120 Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Tue, 18 Aug 2009 23:44:08 -0700 Subject: sparc32: Kill trap table freeing code. Normally, srmmu uses different trap table register values to allow determination of the cpu we're on. All of the trap tables have identical content, they just sit at different offsets from the first trap table, and the offset shifted down and masked out determines the cpu we are on. The code tries to free them up when they aren't actually used (don't have all 4 cpus, we're on sun4d, etc.) but that causes problems. For one thing it triggers false positives in the DMA debugging code. And fixing that up while preserving this relative offset thing isn't trivial. So just kill the freeing code, it costs us at most 3 pages, big deal... Signed-off-by: David S. Miller diff --git a/arch/sparc/kernel/sun4d_smp.c b/arch/sparc/kernel/sun4d_smp.c index 54fb024..68791ca 100644 --- a/arch/sparc/kernel/sun4d_smp.c +++ b/arch/sparc/kernel/sun4d_smp.c @@ -162,9 +162,6 @@ extern void cpu_panic(void); */ extern struct linux_prom_registers smp_penguin_ctable; -extern unsigned long trapbase_cpu1[]; -extern unsigned long trapbase_cpu2[]; -extern unsigned long trapbase_cpu3[]; void __init smp4d_boot_cpus(void) { @@ -235,25 +232,6 @@ void __init smp4d_smp_done(void) *prev = first; local_flush_cache_all(); - /* Free unneeded trap tables */ - ClearPageReserved(virt_to_page(trapbase_cpu1)); - init_page_count(virt_to_page(trapbase_cpu1)); - free_page((unsigned long)trapbase_cpu1); - totalram_pages++; - num_physpages++; - - ClearPageReserved(virt_to_page(trapbase_cpu2)); - init_page_count(virt_to_page(trapbase_cpu2)); - free_page((unsigned long)trapbase_cpu2); - totalram_pages++; - num_physpages++; - - ClearPageReserved(virt_to_page(trapbase_cpu3)); - init_page_count(virt_to_page(trapbase_cpu3)); - free_page((unsigned long)trapbase_cpu3); - totalram_pages++; - num_physpages++; - /* Ok, they are spinning and ready to go. */ smp_processors_ready = 1; sun4d_distribute_irqs(); diff --git a/arch/sparc/kernel/sun4m_smp.c b/arch/sparc/kernel/sun4m_smp.c index 960b113..762d6ee 100644 --- a/arch/sparc/kernel/sun4m_smp.c +++ b/arch/sparc/kernel/sun4m_smp.c @@ -121,9 +121,6 @@ void __cpuinit smp4m_callin(void) */ extern struct linux_prom_registers smp_penguin_ctable; -extern unsigned long trapbase_cpu1[]; -extern unsigned long trapbase_cpu2[]; -extern unsigned long trapbase_cpu3[]; void __init smp4m_boot_cpus(void) { @@ -193,29 +190,6 @@ void __init smp4m_smp_done(void) *prev = first; local_flush_cache_all(); - /* Free unneeded trap tables */ - if (!cpu_isset(1, cpu_present_map)) { - ClearPageReserved(virt_to_page(trapbase_cpu1)); - init_page_count(virt_to_page(trapbase_cpu1)); - free_page((unsigned long)trapbase_cpu1); - totalram_pages++; - num_physpages++; - } - if (!cpu_isset(2, cpu_present_map)) { - ClearPageReserved(virt_to_page(trapbase_cpu2)); - init_page_count(virt_to_page(trapbase_cpu2)); - free_page((unsigned long)trapbase_cpu2); - totalram_pages++; - num_physpages++; - } - if (!cpu_isset(3, cpu_present_map)) { - ClearPageReserved(virt_to_page(trapbase_cpu3)); - init_page_count(virt_to_page(trapbase_cpu3)); - free_page((unsigned long)trapbase_cpu3); - totalram_pages++; - num_physpages++; - } - /* Ok, they are spinning and ready to go. */ } -- cgit v0.10.2 From 2193aa276e2579d9c781c5269521d43f47da9959 Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Tue, 18 Aug 2009 23:46:12 -0700 Subject: sparc32: Update defconfig. Signed-off-by: David S. Miller diff --git a/arch/sparc/configs/sparc32_defconfig b/arch/sparc/configs/sparc32_defconfig index 8bcd27a..a0f62a8 100644 --- a/arch/sparc/configs/sparc32_defconfig +++ b/arch/sparc/configs/sparc32_defconfig @@ -1,7 +1,7 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.30-rc2 -# Fri Apr 17 04:04:46 2009 +# Linux kernel version: 2.6.31-rc1 +# Tue Aug 18 23:45:52 2009 # # CONFIG_64BIT is not set CONFIG_SPARC=y @@ -17,6 +17,7 @@ CONFIG_GENERIC_ISA_DMA=y CONFIG_ARCH_NO_VIRT_TO_BUS=y CONFIG_OF=y CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config" +CONFIG_CONSTRUCTORS=y # # General setup @@ -74,7 +75,6 @@ CONFIG_SYSCTL_SYSCALL=y CONFIG_KALLSYMS=y # CONFIG_KALLSYMS_ALL is not set # CONFIG_KALLSYMS_EXTRA_PASS is not set -# CONFIG_STRIP_ASM_SYMS is not set CONFIG_HOTPLUG=y CONFIG_PRINTK=y CONFIG_BUG=y @@ -87,8 +87,13 @@ CONFIG_TIMERFD=y CONFIG_EVENTFD=y CONFIG_SHMEM=y CONFIG_AIO=y + +# +# Performance Counters +# CONFIG_VM_EVENT_COUNTERS=y CONFIG_PCI_QUIRKS=y +# CONFIG_STRIP_ASM_SYMS is not set CONFIG_COMPAT_BRK=y CONFIG_SLAB=y # CONFIG_SLUB is not set @@ -97,6 +102,10 @@ CONFIG_SLAB=y # CONFIG_MARKERS is not set CONFIG_HAVE_OPROFILE=y CONFIG_HAVE_ARCH_TRACEHOOK=y + +# +# GCOV-based kernel profiling +# # CONFIG_SLOW_WORK is not set # CONFIG_HAVE_GENERIC_DMA_COHERENT is not set CONFIG_SLABINFO=y @@ -109,7 +118,7 @@ CONFIG_MODULE_UNLOAD=y # CONFIG_MODVERSIONS is not set # CONFIG_MODULE_SRCVERSION_ALL is not set CONFIG_BLOCK=y -# CONFIG_LBD is not set +CONFIG_LBDAF=y # CONFIG_BLK_DEV_BSG is not set # CONFIG_BLK_DEV_INTEGRITY is not set @@ -154,9 +163,9 @@ CONFIG_SPLIT_PTLOCK_CPUS=4 # CONFIG_PHYS_ADDR_T_64BIT is not set CONFIG_ZONE_DMA_FLAG=1 CONFIG_BOUNCE=y -CONFIG_UNEVICTABLE_LRU=y CONFIG_HAVE_MLOCK=y CONFIG_HAVE_MLOCKED_PAGE_BIT=y +CONFIG_DEFAULT_MMAP_MIN_ADDR=4096 CONFIG_SUN_PM=y # CONFIG_SPARC_LED is not set CONFIG_SERIAL_CONSOLE=y @@ -264,6 +273,7 @@ CONFIG_IPV6_TUNNEL=m # CONFIG_ECONET is not set # CONFIG_WAN_ROUTER is not set # CONFIG_PHONET is not set +# CONFIG_IEEE802154 is not set # CONFIG_NET_SCHED is not set # CONFIG_DCB is not set @@ -281,7 +291,11 @@ CONFIG_WIRELESS=y CONFIG_WIRELESS_OLD_REGULATORY=y # CONFIG_WIRELESS_EXT is not set # CONFIG_LIB80211 is not set -# CONFIG_MAC80211 is not set + +# +# CFG80211 needs to be enabled for MAC80211 +# +CONFIG_MAC80211_DEFAULT_PS_VALUE=0 # CONFIG_WIMAX is not set # CONFIG_RFKILL is not set # CONFIG_NET_9P is not set @@ -335,6 +349,7 @@ CONFIG_MISC_DEVICES=y # EEPROM support # # CONFIG_EEPROM_93CX6 is not set +# CONFIG_CB710_CORE is not set CONFIG_HAVE_IDE=y # CONFIG_IDE is not set @@ -358,10 +373,6 @@ CONFIG_BLK_DEV_SR=m # CONFIG_BLK_DEV_SR_VENDOR is not set CONFIG_CHR_DEV_SG=m # CONFIG_CHR_DEV_SCH is not set - -# -# Some SCSI devices (e.g. CD jukebox) support multiple LUNs -# # CONFIG_SCSI_MULTI_LUN is not set # CONFIG_SCSI_CONSTANTS is not set # CONFIG_SCSI_LOGGING is not set @@ -379,6 +390,7 @@ CONFIG_SCSI_SPI_ATTRS=y CONFIG_SCSI_LOWLEVEL=y # CONFIG_ISCSI_TCP is not set # CONFIG_SCSI_CXGB3_ISCSI is not set +# CONFIG_SCSI_BNX2_ISCSI is not set # CONFIG_BLK_DEV_3W_XXXX_RAID is not set # CONFIG_SCSI_3W_9XXX is not set # CONFIG_SCSI_ACARD is not set @@ -387,6 +399,7 @@ CONFIG_SCSI_LOWLEVEL=y # CONFIG_SCSI_AIC7XXX_OLD is not set # CONFIG_SCSI_AIC79XX is not set # CONFIG_SCSI_AIC94XX is not set +# CONFIG_SCSI_MVSAS is not set # CONFIG_SCSI_ARCMSR is not set # CONFIG_MEGARAID_NEWGEN is not set # CONFIG_MEGARAID_LEGACY is not set @@ -401,7 +414,6 @@ CONFIG_SCSI_LOWLEVEL=y # CONFIG_SCSI_IPS is not set # CONFIG_SCSI_INITIO is not set # CONFIG_SCSI_INIA100 is not set -# CONFIG_SCSI_MVSAS is not set # CONFIG_SCSI_STEX is not set # CONFIG_SCSI_SYM53C8XX_2 is not set # CONFIG_SCSI_QLOGIC_1280 is not set @@ -426,13 +438,16 @@ CONFIG_SCSI_SUNESP=y # # -# Enable only one of the two stacks, unless you know what you are doing +# You can enable one or both FireWire driver stacks. +# + +# +# See the help texts for more information. # # CONFIG_FIREWIRE is not set # CONFIG_IEEE1394 is not set # CONFIG_I2O is not set CONFIG_NETDEVICES=y -CONFIG_COMPAT_NET_DEV_OPS=y CONFIG_DUMMY=m # CONFIG_BONDING is not set # CONFIG_MACVLAN is not set @@ -463,6 +478,7 @@ CONFIG_SUNQE=m # CONFIG_IBM_NEW_EMAC_MAL_COMMON_ERR is not set # CONFIG_NET_PCI is not set # CONFIG_B44 is not set +# CONFIG_KS8842 is not set # CONFIG_ATL2 is not set CONFIG_NETDEV_1000=y # CONFIG_ACENIC is not set @@ -482,6 +498,7 @@ CONFIG_NETDEV_1000=y # CONFIG_VIA_VELOCITY is not set # CONFIG_TIGON3 is not set # CONFIG_BNX2 is not set +# CONFIG_CNIC is not set # CONFIG_QLA3XXX is not set # CONFIG_ATL1 is not set # CONFIG_ATL1E is not set @@ -629,6 +646,11 @@ CONFIG_HW_RANDOM=m CONFIG_DEVPORT=y # CONFIG_I2C is not set # CONFIG_SPI is not set + +# +# PPS support +# +# CONFIG_PPS is not set CONFIG_ARCH_WANT_OPTIONAL_GPIOLIB=y # CONFIG_GPIOLIB is not set # CONFIG_W1 is not set @@ -668,22 +690,7 @@ CONFIG_SSB_POSSIBLE=y # CONFIG_HTC_PASIC3 is not set # CONFIG_MFD_TMIO is not set # CONFIG_REGULATOR is not set - -# -# Multimedia devices -# - -# -# Multimedia core support -# -# CONFIG_VIDEO_DEV is not set -# CONFIG_DVB_CORE is not set -# CONFIG_VIDEO_MEDIA is not set - -# -# Multimedia drivers -# -# CONFIG_DAB is not set +# CONFIG_MEDIA_SUPPORT is not set # # Graphics support @@ -776,6 +783,10 @@ CONFIG_RTC_DRV_M48T59=y # CONFIG_DMADEVICES is not set # CONFIG_AUXDISPLAY is not set # CONFIG_UIO is not set + +# +# TI VLYNQ +# # CONFIG_STAGING is not set # @@ -799,10 +810,12 @@ CONFIG_FS_MBCACHE=y # CONFIG_REISERFS_FS is not set # CONFIG_JFS_FS is not set CONFIG_FS_POSIX_ACL=y -CONFIG_FILE_LOCKING=y # CONFIG_XFS_FS is not set +# CONFIG_GFS2_FS is not set # CONFIG_OCFS2_FS is not set # CONFIG_BTRFS_FS is not set +CONFIG_FILE_LOCKING=y +CONFIG_FSNOTIFY=y CONFIG_DNOTIFY=y CONFIG_INOTIFY=y CONFIG_INOTIFY_USER=y @@ -985,6 +998,7 @@ CONFIG_KGDB=y CONFIG_KGDB_SERIAL_CONSOLE=y CONFIG_KGDB_TESTS=y # CONFIG_KGDB_TESTS_ON_BOOT is not set +# CONFIG_KMEMCHECK is not set # CONFIG_DEBUG_STACK_USAGE is not set # CONFIG_STACK_DEBUG is not set -- cgit v0.10.2 From 1ca3976d8ca8b0b44145994b1433f759a642615b Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Tue, 18 Aug 2009 23:56:21 -0700 Subject: sparc64: Update defconfig. Signed-off-by: David S. Miller diff --git a/arch/sparc/configs/sparc64_defconfig b/arch/sparc/configs/sparc64_defconfig index 0123a4c..fdddf7a 100644 --- a/arch/sparc/configs/sparc64_defconfig +++ b/arch/sparc/configs/sparc64_defconfig @@ -1,7 +1,7 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.30 -# Tue Jun 16 04:59:36 2009 +# Linux kernel version: 2.6.31-rc1 +# Tue Aug 18 23:56:02 2009 # CONFIG_64BIT=y CONFIG_SPARC=y @@ -26,6 +26,7 @@ CONFIG_ARCH_NO_VIRT_TO_BUS=y CONFIG_OF=y CONFIG_ARCH_SUPPORTS_DEBUG_PAGEALLOC=y CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config" +CONFIG_CONSTRUCTORS=y # # General setup @@ -119,6 +120,11 @@ CONFIG_HAVE_KPROBES=y CONFIG_HAVE_KRETPROBES=y CONFIG_HAVE_ARCH_TRACEHOOK=y CONFIG_USE_GENERIC_SMP_HELPERS=y + +# +# GCOV-based kernel profiling +# +# CONFIG_GCOV_KERNEL is not set # CONFIG_SLOW_WORK is not set # CONFIG_HAVE_GENERIC_DMA_COHERENT is not set CONFIG_SLABINFO=y @@ -204,7 +210,6 @@ CONFIG_MIGRATION=y CONFIG_PHYS_ADDR_T_64BIT=y CONFIG_ZONE_DMA_FLAG=0 CONFIG_NR_QUICK=1 -CONFIG_UNEVICTABLE_LRU=y CONFIG_HAVE_MLOCK=y CONFIG_HAVE_MLOCKED_PAGE_BIT=y CONFIG_DEFAULT_MMAP_MIN_ADDR=8192 @@ -410,6 +415,7 @@ CONFIG_MISC_DEVICES=y # # CONFIG_EEPROM_AT24 is not set # CONFIG_EEPROM_LEGACY is not set +# CONFIG_EEPROM_MAX6875 is not set # CONFIG_EEPROM_93CX6 is not set # CONFIG_CB710_CORE is not set CONFIG_HAVE_IDE=y @@ -562,6 +568,7 @@ CONFIG_BLK_DEV_DM=m CONFIG_DM_CRYPT=m CONFIG_DM_SNAPSHOT=m CONFIG_DM_MIRROR=m +# CONFIG_DM_LOG_USERSPACE is not set CONFIG_DM_ZERO=m # CONFIG_DM_MULTIPATH is not set # CONFIG_DM_DELAY is not set @@ -573,7 +580,11 @@ CONFIG_DM_ZERO=m # # -# Enable only one of the two stacks, unless you know what you are doing +# You can enable one or both FireWire driver stacks. +# + +# +# See the help texts for more information. # # CONFIG_FIREWIRE is not set # CONFIG_IEEE1394 is not set @@ -667,6 +678,7 @@ CONFIG_E1000E=m # CONFIG_VIA_VELOCITY is not set CONFIG_TIGON3=m CONFIG_BNX2=m +# CONFIG_CNIC is not set # CONFIG_QLA3XXX is not set # CONFIG_ATL1 is not set # CONFIG_ATL1E is not set @@ -773,6 +785,7 @@ CONFIG_MOUSE_SERIAL=y # CONFIG_MOUSE_APPLETOUCH is not set # CONFIG_MOUSE_BCM5974 is not set # CONFIG_MOUSE_VSXXXAA is not set +# CONFIG_MOUSE_SYNAPTICS_I2C is not set # CONFIG_INPUT_JOYSTICK is not set # CONFIG_INPUT_TABLET is not set # CONFIG_INPUT_TOUCHSCREEN is not set @@ -870,6 +883,7 @@ CONFIG_I2C_ALGOBIT=y # # I2C system bus drivers (mostly embedded / system-on-chip) # +# CONFIG_I2C_DESIGNWARE is not set # CONFIG_I2C_OCORES is not set # CONFIG_I2C_SIMTEC is not set @@ -898,13 +912,17 @@ CONFIG_I2C_ALGOBIT=y # CONFIG_SENSORS_PCF8574 is not set # CONFIG_PCF8575 is not set # CONFIG_SENSORS_PCA9539 is not set -# CONFIG_SENSORS_MAX6875 is not set # CONFIG_SENSORS_TSL2550 is not set # CONFIG_I2C_DEBUG_CORE is not set # CONFIG_I2C_DEBUG_ALGO is not set # CONFIG_I2C_DEBUG_BUS is not set # CONFIG_I2C_DEBUG_CHIP is not set # CONFIG_SPI is not set + +# +# PPS support +# +# CONFIG_PPS is not set CONFIG_ARCH_WANT_OPTIONAL_GPIOLIB=y # CONFIG_GPIOLIB is not set # CONFIG_W1 is not set @@ -959,6 +977,7 @@ CONFIG_HWMON=y # CONFIG_SENSORS_SMSC47B397 is not set # CONFIG_SENSORS_ADS7828 is not set # CONFIG_SENSORS_THMC50 is not set +# CONFIG_SENSORS_TMP401 is not set # CONFIG_SENSORS_VIA686A is not set # CONFIG_SENSORS_VT1211 is not set # CONFIG_SENSORS_VT8231 is not set @@ -994,23 +1013,9 @@ CONFIG_SSB_POSSIBLE=y # CONFIG_MFD_WM8400 is not set # CONFIG_MFD_WM8350_I2C is not set # CONFIG_MFD_PCF50633 is not set +# CONFIG_AB3100_CORE is not set # CONFIG_REGULATOR is not set - -# -# Multimedia devices -# - -# -# Multimedia core support -# -# CONFIG_VIDEO_DEV is not set -# CONFIG_DVB_CORE is not set -# CONFIG_VIDEO_MEDIA is not set - -# -# Multimedia drivers -# -# CONFIG_DAB is not set +# CONFIG_MEDIA_SUPPORT is not set # # Graphics support @@ -1284,7 +1289,6 @@ CONFIG_USB=y # # Miscellaneous USB options # -CONFIG_USB_DEVICEFS=y # CONFIG_USB_DEVICE_CLASS is not set # CONFIG_USB_DYNAMIC_MINORS is not set # CONFIG_USB_OTG is not set @@ -1296,6 +1300,7 @@ CONFIG_USB_DEVICEFS=y # USB Host Controller Drivers # # CONFIG_USB_C67X00_HCD is not set +# CONFIG_USB_XHCI_HCD is not set CONFIG_USB_EHCI_HCD=m # CONFIG_USB_EHCI_ROOT_HUB_TT is not set # CONFIG_USB_EHCI_TT_NEWSCHED is not set @@ -1374,7 +1379,6 @@ CONFIG_USB_STORAGE=m # CONFIG_USB_LD is not set # CONFIG_USB_TRANCEVIBRATOR is not set # CONFIG_USB_IOWARRIOR is not set -# CONFIG_USB_TEST is not set # CONFIG_USB_ISIGHTFW is not set # CONFIG_USB_VST is not set # CONFIG_USB_GADGET is not set @@ -1420,6 +1424,7 @@ CONFIG_RTC_INTF_DEV=y # CONFIG_RTC_DRV_S35390A is not set # CONFIG_RTC_DRV_FM3130 is not set # CONFIG_RTC_DRV_RX8581 is not set +# CONFIG_RTC_DRV_RX8025 is not set # # SPI RTC drivers @@ -1448,6 +1453,10 @@ CONFIG_RTC_DRV_STARFIRE=y # CONFIG_DMADEVICES is not set # CONFIG_AUXDISPLAY is not set # CONFIG_UIO is not set + +# +# TI VLYNQ +# # CONFIG_STAGING is not set # @@ -1480,11 +1489,11 @@ CONFIG_FS_MBCACHE=y # CONFIG_REISERFS_FS is not set # CONFIG_JFS_FS is not set CONFIG_FS_POSIX_ACL=y -CONFIG_FILE_LOCKING=y # CONFIG_XFS_FS is not set # CONFIG_GFS2_FS is not set # CONFIG_OCFS2_FS is not set # CONFIG_BTRFS_FS is not set +CONFIG_FILE_LOCKING=y CONFIG_FSNOTIFY=y CONFIG_DNOTIFY=y CONFIG_INOTIFY=y @@ -1560,7 +1569,7 @@ CONFIG_NETWORK_FILESYSTEMS=y # CONFIG_PARTITION_ADVANCED is not set CONFIG_MSDOS_PARTITION=y CONFIG_SUN_PARTITION=y -CONFIG_NLS=m +CONFIG_NLS=y CONFIG_NLS_DEFAULT="iso8859-1" # CONFIG_NLS_CODEPAGE_437 is not set # CONFIG_NLS_CODEPAGE_737 is not set -- cgit v0.10.2 From 150fe14c1a1f08cb430d8382bf5554c2a168b79b Mon Sep 17 00:00:00 2001 From: Wu Fengguang Date: Wed, 19 Aug 2009 16:58:59 +0800 Subject: ALSA: hda: enable speaker output for Compaq 6530s/6531s HP Compaq 6530s and 6531s internal speaker is silence or becomes silence within 1 minute after fresh boot. It is found that pin 0x1c must be set to PIN_OUT mode to make the speaker work. This is weird - line-in pin 0x1c and speaker pin 0x16 seem to be unrelated. The codec differences before/after patch are: @@ Node 0x17 [Pin Complex] wcaps 0x40020b: Pin Default 0x41a6e130: [N/A] Mic at Ext Rear Conn = Digital, Color = White DefAssociation = 0x3, Sequence = 0x0 Misc = NO_PRESENCE - Pin-ctls: 0x24: IN + Pin-ctls: 0x40: OUT @@ Node 0x1c [Pin Complex] wcaps 0x40018d: Pin Default 0x41813021: [N/A] Line In at Ext Rear Conn = 1/8, Color = Blue DefAssociation = 0x2, Sequence = 0x1 - Pin-ctls: 0x24: IN VREF_80 + Pin-ctls: 0x40: OUT VREF_HIZ Unsolicited: tag=00, enabled=0 Connection: 1 0x24 Tests show that it won't impact (external) Mic recording. Reported-by: "Lin, Ming M" Signed-off-by: Wu Fengguang Signed-off-by: Takashi Iwai diff --git a/sound/pci/hda/patch_analog.c b/sound/pci/hda/patch_analog.c index e8e6a43..f2bb480 100644 --- a/sound/pci/hda/patch_analog.c +++ b/sound/pci/hda/patch_analog.c @@ -3823,9 +3823,11 @@ static struct hda_verb ad1884a_laptop_verbs[] = { /* Port-F (int speaker) mixer - route only from analog mixer */ {0x0b, AC_VERB_SET_AMP_GAIN_MUTE, AMP_IN_MUTE(0)}, {0x0b, AC_VERB_SET_AMP_GAIN_MUTE, AMP_IN_UNMUTE(1)}, - /* Port-F pin */ - {0x16, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_HP}, + /* Port-F (int speaker) pin */ + {0x16, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT}, {0x16, AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_MUTE}, + /* required for compaq 6530s/6531s speaker output */ + {0x1c, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT}, /* Port-C pin - internal mic-in */ {0x15, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_VREF80}, {0x14, AC_VERB_SET_AMP_GAIN_MUTE, 0x7002}, /* raise mic as default */ -- cgit v0.10.2 From ae709440edb2d36f51f5ea51cfab931f45c03e02 Mon Sep 17 00:00:00 2001 From: Wu Fengguang Date: Wed, 19 Aug 2009 17:05:11 +0800 Subject: ALSA: hda: add model for Intel DG45ID/DG45FC boards The BIOS pin configs are in fact correct and shall not be overwritten. Signed-off-by: Wu Fengguang Signed-off-by: Takashi Iwai diff --git a/sound/pci/hda/patch_sigmatel.c b/sound/pci/hda/patch_sigmatel.c index 456ef6a..6990cfc 100644 --- a/sound/pci/hda/patch_sigmatel.c +++ b/sound/pci/hda/patch_sigmatel.c @@ -76,6 +76,7 @@ enum { STAC_92HD73XX_AUTO, STAC_92HD73XX_NO_JD, /* no jack-detection */ STAC_92HD73XX_REF, + STAC_92HD73XX_INTEL, STAC_DELL_M6_AMIC, STAC_DELL_M6_DMIC, STAC_DELL_M6_BOTH, @@ -1777,6 +1778,7 @@ static const char *stac92hd73xx_models[STAC_92HD73XX_MODELS] = { [STAC_92HD73XX_AUTO] = "auto", [STAC_92HD73XX_NO_JD] = "no-jd", [STAC_92HD73XX_REF] = "ref", + [STAC_92HD73XX_INTEL] = "intel", [STAC_DELL_M6_AMIC] = "dell-m6-amic", [STAC_DELL_M6_DMIC] = "dell-m6-dmic", [STAC_DELL_M6_BOTH] = "dell-m6", @@ -1789,6 +1791,10 @@ static struct snd_pci_quirk stac92hd73xx_cfg_tbl[] = { "DFI LanParty", STAC_92HD73XX_REF), SND_PCI_QUIRK(PCI_VENDOR_ID_DFI, 0x3101, "DFI LanParty", STAC_92HD73XX_REF), + SND_PCI_QUIRK(PCI_VENDOR_ID_INTEL, 0x5002, + "Intel DG45ID", STAC_92HD73XX_INTEL), + SND_PCI_QUIRK(PCI_VENDOR_ID_INTEL, 0x5003, + "Intel DG45FC", STAC_92HD73XX_INTEL), SND_PCI_QUIRK(PCI_VENDOR_ID_DELL, 0x0254, "Dell Studio 1535", STAC_DELL_M6_DMIC), SND_PCI_QUIRK(PCI_VENDOR_ID_DELL, 0x0255, -- cgit v0.10.2 From fa6963b2481beff8b11f76006fbb63fdbbf2d2d7 Mon Sep 17 00:00:00 2001 From: Peter Zijlstra Date: Wed, 19 Aug 2009 11:18:26 +0200 Subject: perf tools: Check perf.data owner Add an owner check to opening perf.data files and a switch to silence it. Because perf-report/perf-annotate are binary parsers reading another users' perf.data file could be a security risk if the file were explicitly engineered to trigger bugs in the parser (we hope of course there are non such bugs, but you never know). Signed-off-by: Peter Zijlstra Cc: Arnaldo Carvalho de Melo Cc: Frederic Weisbecker Cc: Mike Galbraith Cc: Peter Zijlstra Cc: Paul Mackerras LKML-Reference: <20090819092023.896648538@chello.nl> Signed-off-by: Ingo Molnar diff --git a/tools/perf/builtin-annotate.c b/tools/perf/builtin-annotate.c index 343e7b1..5e17de9 100644 --- a/tools/perf/builtin-annotate.c +++ b/tools/perf/builtin-annotate.c @@ -31,6 +31,7 @@ static char *vmlinux = "vmlinux"; static char default_sort_order[] = "comm,symbol"; static char *sort_order = default_sort_order; +static int force; static int input; static int show_mask = SHOW_KERNEL | SHOW_USER | SHOW_HV; @@ -1334,6 +1335,11 @@ static int __cmd_annotate(void) exit(-1); } + if (!force && (stat.st_uid != geteuid())) { + fprintf(stderr, "file: %s not owned by current user\n", input_name); + exit(-1); + } + if (!stat.st_size) { fprintf(stderr, "zero-sized file, nothing to do!\n"); exit(0); @@ -1439,6 +1445,7 @@ static const struct option options[] = { "input file name"), OPT_STRING('s', "symbol", &sym_hist_filter, "symbol", "symbol to annotate"), + OPT_BOOLEAN('f', "force", &force, "don't complain, do it"), OPT_BOOLEAN('v', "verbose", &verbose, "be more verbose (show symbol address, etc)"), OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace, diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c index b53a60f..8b2ec88 100644 --- a/tools/perf/builtin-report.c +++ b/tools/perf/builtin-report.c @@ -38,6 +38,7 @@ static char *dso_list_str, *comm_list_str, *sym_list_str, static struct strlist *dso_list, *comm_list, *sym_list; static char *field_sep; +static int force; static int input; static int show_mask = SHOW_KERNEL | SHOW_USER | SHOW_HV; @@ -1856,6 +1857,11 @@ static int __cmd_report(void) exit(-1); } + if (!force && (stat.st_uid != geteuid())) { + fprintf(stderr, "file: %s not owned by current user\n", input_name); + exit(-1); + } + if (!stat.st_size) { fprintf(stderr, "zero-sized file, nothing to do!\n"); exit(0); @@ -2064,6 +2070,7 @@ static const struct option options[] = { OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace, "dump raw trace in ASCII"), OPT_STRING('k', "vmlinux", &vmlinux, "file", "vmlinux pathname"), + OPT_BOOLEAN('f', "force", &force, "don't complain, do it"), OPT_BOOLEAN('m', "modules", &modules, "load module symbols - WARNING: use only with -k and LIVE kernel"), OPT_BOOLEAN('n', "show-nr-samples", &show_nr_samples, -- cgit v0.10.2 From f833bab87fca5c3ce13778421b1365845843b976 Mon Sep 17 00:00:00 2001 From: Suresh Siddha Date: Mon, 17 Aug 2009 14:34:59 -0700 Subject: clockevent: Prevent dead lock on clockevents_lock Currently clockevents_notify() is called with interrupts enabled at some places and interrupts disabled at some other places. This results in a deadlock in this scenario. cpu A holds clockevents_lock in clockevents_notify() with irqs enabled cpu B waits for clockevents_lock in clockevents_notify() with irqs disabled cpu C doing set_mtrr() which will try to rendezvous of all the cpus. This will result in C and A come to the rendezvous point and waiting for B. B is stuck forever waiting for the spinlock and thus not reaching the rendezvous point. Fix the clockevents code so that clockevents_lock is taken with interrupts disabled and thus avoid the above deadlock. Also call lapic_timer_propagate_broadcast() on the destination cpu so that we avoid calling smp_call_function() in the clockevents notifier chain. This issue left us wondering if we need to change the MTRR rendezvous logic to use stop machine logic (instead of smp_call_function) or add a check in spinlock debug code to see if there are other spinlocks which gets taken under both interrupts enabled/disabled conditions. Signed-off-by: Suresh Siddha Signed-off-by: Venkatesh Pallipadi Cc: "Pallipadi Venkatesh" Cc: "Brown Len" LKML-Reference: <1250544899.2709.210.camel@sbs-t61.sc.intel.com> Signed-off-by: Thomas Gleixner diff --git a/arch/x86/kernel/process.c b/arch/x86/kernel/process.c index 994dd6a..071166a 100644 --- a/arch/x86/kernel/process.c +++ b/arch/x86/kernel/process.c @@ -519,16 +519,12 @@ static void c1e_idle(void) if (!cpumask_test_cpu(cpu, c1e_mask)) { cpumask_set_cpu(cpu, c1e_mask); /* - * Force broadcast so ACPI can not interfere. Needs - * to run with interrupts enabled as it uses - * smp_function_call. + * Force broadcast so ACPI can not interfere. */ - local_irq_enable(); clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_FORCE, &cpu); printk(KERN_INFO "Switch to broadcast mode on CPU%d\n", cpu); - local_irq_disable(); } clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_ENTER, &cpu); diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c index 0efa59e..66393d5 100644 --- a/drivers/acpi/processor_idle.c +++ b/drivers/acpi/processor_idle.c @@ -162,8 +162,9 @@ static void lapic_timer_check_state(int state, struct acpi_processor *pr, pr->power.timer_broadcast_on_state = state; } -static void lapic_timer_propagate_broadcast(struct acpi_processor *pr) +static void lapic_timer_propagate_broadcast(void *arg) { + struct acpi_processor *pr = (struct acpi_processor *) arg; unsigned long reason; reason = pr->power.timer_broadcast_on_state < INT_MAX ? @@ -635,7 +636,8 @@ static int acpi_processor_power_verify(struct acpi_processor *pr) working++; } - lapic_timer_propagate_broadcast(pr); + smp_call_function_single(pr->id, lapic_timer_propagate_broadcast, + pr, 1); return (working); } diff --git a/kernel/time/clockevents.c b/kernel/time/clockevents.c index a6dcd67..620b58a 100644 --- a/kernel/time/clockevents.c +++ b/kernel/time/clockevents.c @@ -137,11 +137,12 @@ int clockevents_program_event(struct clock_event_device *dev, ktime_t expires, */ int clockevents_register_notifier(struct notifier_block *nb) { + unsigned long flags; int ret; - spin_lock(&clockevents_lock); + spin_lock_irqsave(&clockevents_lock, flags); ret = raw_notifier_chain_register(&clockevents_chain, nb); - spin_unlock(&clockevents_lock); + spin_unlock_irqrestore(&clockevents_lock, flags); return ret; } @@ -178,16 +179,18 @@ static void clockevents_notify_released(void) */ void clockevents_register_device(struct clock_event_device *dev) { + unsigned long flags; + BUG_ON(dev->mode != CLOCK_EVT_MODE_UNUSED); BUG_ON(!dev->cpumask); - spin_lock(&clockevents_lock); + spin_lock_irqsave(&clockevents_lock, flags); list_add(&dev->list, &clockevent_devices); clockevents_do_notify(CLOCK_EVT_NOTIFY_ADD, dev); clockevents_notify_released(); - spin_unlock(&clockevents_lock); + spin_unlock_irqrestore(&clockevents_lock, flags); } EXPORT_SYMBOL_GPL(clockevents_register_device); @@ -235,8 +238,9 @@ void clockevents_exchange_device(struct clock_event_device *old, void clockevents_notify(unsigned long reason, void *arg) { struct list_head *node, *tmp; + unsigned long flags; - spin_lock(&clockevents_lock); + spin_lock_irqsave(&clockevents_lock, flags); clockevents_do_notify(reason, arg); switch (reason) { @@ -251,7 +255,7 @@ void clockevents_notify(unsigned long reason, void *arg) default: break; } - spin_unlock(&clockevents_lock); + spin_unlock_irqrestore(&clockevents_lock, flags); } EXPORT_SYMBOL_GPL(clockevents_notify); #endif diff --git a/kernel/time/tick-broadcast.c b/kernel/time/tick-broadcast.c index 877dbed..c2ec250 100644 --- a/kernel/time/tick-broadcast.c +++ b/kernel/time/tick-broadcast.c @@ -205,11 +205,11 @@ static void tick_handle_periodic_broadcast(struct clock_event_device *dev) * Powerstate information: The system enters/leaves a state, where * affected devices might stop */ -static void tick_do_broadcast_on_off(void *why) +static void tick_do_broadcast_on_off(unsigned long *reason) { struct clock_event_device *bc, *dev; struct tick_device *td; - unsigned long flags, *reason = why; + unsigned long flags; int cpu, bc_stopped; spin_lock_irqsave(&tick_broadcast_lock, flags); @@ -276,8 +276,7 @@ void tick_broadcast_on_off(unsigned long reason, int *oncpu) printk(KERN_ERR "tick-broadcast: ignoring broadcast for " "offline CPU #%d\n", *oncpu); else - smp_call_function_single(*oncpu, tick_do_broadcast_on_off, - &reason, 1); + tick_do_broadcast_on_off(&reason); } /* -- cgit v0.10.2 From 0dc9aa845c20ed1f46c85f229591b811dffc4b3b Mon Sep 17 00:00:00 2001 From: Anton Blanchard Date: Wed, 19 Aug 2009 16:10:16 +0100 Subject: AFS: Documentation updates Fix some issues with the AFS documentation, found when testing AFS on ppc64: - Update AFS features: reading/writing, local caching - Typo in kafs sysfs debug file - Use modprobe instead of insmod in example - Update IPs for grand.central.org Signed-off-by: Anton Blanchard Signed-off-by: David Howells Signed-off-by: Linus Torvalds diff --git a/Documentation/filesystems/afs.txt b/Documentation/filesystems/afs.txt index 12ad6c7..ffef91c 100644 --- a/Documentation/filesystems/afs.txt +++ b/Documentation/filesystems/afs.txt @@ -23,15 +23,13 @@ it does support include: (*) Security (currently only AFS kaserver and KerberosIV tickets). - (*) File reading. + (*) File reading and writing. (*) Automounting. -It does not yet support the following AFS features: - - (*) Write support. + (*) Local caching (via fscache). - (*) Local caching. +It does not yet support the following AFS features: (*) pioctl() system call. @@ -56,7 +54,7 @@ They permit the debugging messages to be turned on dynamically by manipulating the masks in the following files: /sys/module/af_rxrpc/parameters/debug - /sys/module/afs/parameters/debug + /sys/module/kafs/parameters/debug ===== @@ -66,9 +64,9 @@ USAGE When inserting the driver modules the root cell must be specified along with a list of volume location server IP addresses: - insmod af_rxrpc.o - insmod rxkad.o - insmod kafs.o rootcell=cambridge.redhat.com:172.16.18.73:172.16.18.91 + modprobe af_rxrpc + modprobe rxkad + modprobe kafs rootcell=cambridge.redhat.com:172.16.18.73:172.16.18.91 The first module is the AF_RXRPC network protocol driver. This provides the RxRPC remote operation protocol and may also be accessed from userspace. See: @@ -81,7 +79,7 @@ is the actual filesystem driver for the AFS filesystem. Once the module has been loaded, more modules can be added by the following procedure: - echo add grand.central.org 18.7.14.88:128.2.191.224 >/proc/fs/afs/cells + echo add grand.central.org 18.9.48.14:128.2.203.61:130.237.48.87 >/proc/fs/afs/cells Where the parameters to the "add" command are the name of a cell and a list of volume location servers within that cell, with the latter separated by colons. @@ -101,7 +99,7 @@ The name of the volume can be suffixes with ".backup" or ".readonly" to specify connection to only volumes of those types. The name of the cell is optional, and if not given during a mount, then the -named volume will be looked up in the cell specified during insmod. +named volume will be looked up in the cell specified during modprobe. Additional cells can be added through /proc (see later section). @@ -163,14 +161,14 @@ THE CELL DATABASE The filesystem maintains an internal database of all the cells it knows and the IP addresses of the volume location servers for those cells. The cell to which -the system belongs is added to the database when insmod is performed by the +the system belongs is added to the database when modprobe is performed by the "rootcell=" argument or, if compiled in, using a "kafs.rootcell=" argument on the kernel command line. Further cells can be added by commands similar to the following: echo add CELLNAME VLADDR[:VLADDR][:VLADDR]... >/proc/fs/afs/cells - echo add grand.central.org 18.7.14.88:128.2.191.224 >/proc/fs/afs/cells + echo add grand.central.org 18.9.48.14:128.2.203.61:130.237.48.87 >/proc/fs/afs/cells No other cell database operations are available at this time. @@ -233,7 +231,7 @@ insmod /tmp/kafs.o rootcell=cambridge.redhat.com:172.16.18.91 mount -t afs \%root.afs. /afs mount -t afs \%cambridge.redhat.com:root.cell. /afs/cambridge.redhat.com/ -echo add grand.central.org 18.7.14.88:128.2.191.224 > /proc/fs/afs/cells +echo add grand.central.org 18.9.48.14:128.2.203.61:130.237.48.87 > /proc/fs/afs/cells mount -t afs "#grand.central.org:root.cell." /afs/grand.central.org/ mount -t afs "#grand.central.org:root.archive." /afs/grand.central.org/archive mount -t afs "#grand.central.org:root.contrib." /afs/grand.central.org/contrib -- cgit v0.10.2 From 3abf2f3639959e4f53f209f93cd4d93fe9356de1 Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Wed, 19 Aug 2009 20:05:02 +0200 Subject: ALSA: hda - Fix probe of Toshiba laptops with ALC268 codec There are many variants of Toshiba laptops with ALC268 codec, and it seems that a few of them don't work with model=toshiba preset since they have the secondary ALC268 codec just for HDMI output. This is a regression due to the previous clean-up work to merge all Toshiba quirk entries into a single check. This patch adds the identification of such laptops to apply the standard BIOS-probing method. Unfortunately, Toshiba laptops have all the same PCI SSID, so we need to check the codec SSID to identify each device. Tested-by: Alexey Dobriyan Signed-off-by: Takashi Iwai diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c index fea9767..6f683e4 100644 --- a/sound/pci/hda/patch_realtek.c +++ b/sound/pci/hda/patch_realtek.c @@ -12521,8 +12521,6 @@ static struct snd_pci_quirk alc268_cfg_tbl[] = { ALC268_TOSHIBA), SND_PCI_QUIRK(0x1043, 0x1205, "ASUS W7J", ALC268_3ST), SND_PCI_QUIRK(0x1170, 0x0040, "ZEPTO", ALC268_ZEPTO), - SND_PCI_QUIRK_MASK(0x1179, 0xff00, 0xff00, "TOSHIBA A/Lx05", - ALC268_TOSHIBA), SND_PCI_QUIRK(0x14c0, 0x0025, "COMPAL IFL90/JFL-92", ALC268_TOSHIBA), SND_PCI_QUIRK(0x152d, 0x0763, "Diverse (CPR2000)", ALC268_ACER), SND_PCI_QUIRK(0x152d, 0x0771, "Quanta IL1", ALC267_QUANTA_IL1), @@ -12530,6 +12528,15 @@ static struct snd_pci_quirk alc268_cfg_tbl[] = { {} }; +/* Toshiba laptops have no unique PCI SSID but only codec SSID */ +static struct snd_pci_quirk alc268_ssid_cfg_tbl[] = { + SND_PCI_QUIRK(0x1179, 0xff0a, "TOSHIBA X-200", ALC268_AUTO), + SND_PCI_QUIRK(0x1179, 0xff0e, "TOSHIBA X-200 HDMI", ALC268_AUTO), + SND_PCI_QUIRK_MASK(0x1179, 0xff00, 0xff00, "TOSHIBA A/Lx05", + ALC268_TOSHIBA), + {} +}; + static struct alc_config_preset alc268_presets[] = { [ALC267_QUANTA_IL1] = { .mixers = { alc267_quanta_il1_mixer, alc268_beep_mixer }, @@ -12696,6 +12703,10 @@ static int patch_alc268(struct hda_codec *codec) alc268_models, alc268_cfg_tbl); + if (board_config < 0 || board_config >= ALC268_MODEL_LAST) + board_config = snd_hda_check_board_codec_sid_config(codec, + ALC882_MODEL_LAST, alc268_models, alc268_ssid_cfg_tbl); + if (board_config < 0 || board_config >= ALC268_MODEL_LAST) { printk(KERN_INFO "hda_codec: Unknown model for %s, " "trying auto-probe from BIOS...\n", codec->chip_name); -- cgit v0.10.2 From cbb35f8a2858f7e0fff5df598cb286c4bcae5976 Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Wed, 19 Aug 2009 12:13:31 -0700 Subject: net: fix ks8851 build errors Fix build errors due to missing Kconfig select of CRC32: ks8851.c:(.text+0x7d2ee): undefined reference to `crc32_le' ks8851.c:(.text+0x7d2f5): undefined reference to `bitrev32' Signed-off-by: Randy Dunlap Signed-off-by: David S. Miller diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig index 5f6509a..7a90e7c 100644 --- a/drivers/net/Kconfig +++ b/drivers/net/Kconfig @@ -1733,6 +1733,7 @@ config KS8851 tristate "Micrel KS8851 SPI" depends on SPI select MII + select CRC32 help SPI driver for Micrel KS8851 SPI attached network chip. -- cgit v0.10.2 From 5416c2663517ebd0be0664c4d4ce3df0b116c059 Mon Sep 17 00:00:00 2001 From: Jeremy Fitzhardinge Date: Mon, 17 Aug 2009 12:25:41 -0700 Subject: x86: make sure load_percpu_segment has no stackprotector load_percpu_segment() is used to set up the per-cpu segment registers, which are also used for -fstack-protector. Make sure that the load_percpu_segment() function doesn't have stackprotector enabled. [ Impact: allow percpu setup before calling stack-protected functions ] Signed-off-by: Jeremy Fitzhardinge diff --git a/arch/x86/kernel/cpu/Makefile b/arch/x86/kernel/cpu/Makefile index 4e242f9..8b5b9b6 100644 --- a/arch/x86/kernel/cpu/Makefile +++ b/arch/x86/kernel/cpu/Makefile @@ -7,6 +7,10 @@ ifdef CONFIG_FUNCTION_TRACER CFLAGS_REMOVE_common.o = -pg endif +# Make sure load_percpu_segment has no stackprotector +nostackp := $(call cc-option, -fno-stack-protector) +CFLAGS_common.o := $(nostackp) + obj-y := intel_cacheinfo.o addon_cpuid_features.o obj-y += proc.o capflags.o powerflags.o common.o obj-y += vmware.o hypervisor.o -- cgit v0.10.2 From ce2eef33d35cd7b932492b5a81fb0febd2b323cd Mon Sep 17 00:00:00 2001 From: Jeremy Fitzhardinge Date: Mon, 17 Aug 2009 12:26:53 -0700 Subject: xen: rearrange things to fix stackprotector Make sure the stack-protector segment registers are properly set up before calling any functions which may have stack-protection compiled into them. [ Impact: prevent Xen early-boot crash when stack-protector is enabled ] Signed-off-by: Jeremy Fitzhardinge diff --git a/arch/x86/xen/Makefile b/arch/x86/xen/Makefile index 3b767d0..a5b9288 100644 --- a/arch/x86/xen/Makefile +++ b/arch/x86/xen/Makefile @@ -5,6 +5,10 @@ CFLAGS_REMOVE_time.o = -pg CFLAGS_REMOVE_irq.o = -pg endif +# Make sure early boot has no stackprotector +nostackp := $(call cc-option, -fno-stack-protector) +CFLAGS_enlighten.o := $(nostackp) + obj-y := enlighten.o setup.o multicalls.o mmu.o irq.o \ time.o xen-asm.o xen-asm_$(BITS).o \ grant-table.o suspend.o diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c index f09e8c3..edcf72a 100644 --- a/arch/x86/xen/enlighten.c +++ b/arch/x86/xen/enlighten.c @@ -925,10 +925,6 @@ asmlinkage void __init xen_start_kernel(void) xen_domain_type = XEN_PV_DOMAIN; - BUG_ON(memcmp(xen_start_info->magic, "xen-3", 5) != 0); - - xen_setup_features(); - /* Install Xen paravirt ops */ pv_info = xen_info; pv_init_ops = xen_init_ops; @@ -937,8 +933,15 @@ asmlinkage void __init xen_start_kernel(void) pv_apic_ops = xen_apic_ops; pv_mmu_ops = xen_mmu_ops; - xen_init_irq_ops(); +#ifdef CONFIG_X86_64 + /* + * Setup percpu state. We only need to do this for 64-bit + * because 32-bit already has %fs set properly. + */ + load_percpu_segment(0); +#endif + xen_init_irq_ops(); xen_init_cpuid_mask(); #ifdef CONFIG_X86_LOCAL_APIC @@ -948,6 +951,8 @@ asmlinkage void __init xen_start_kernel(void) set_xen_basic_apic_ops(); #endif + xen_setup_features(); + if (xen_feature(XENFEAT_mmu_pt_update_preserve_ad)) { pv_mmu_ops.ptep_modify_prot_start = xen_ptep_modify_prot_start; pv_mmu_ops.ptep_modify_prot_commit = xen_ptep_modify_prot_commit; @@ -955,13 +960,6 @@ asmlinkage void __init xen_start_kernel(void) machine_ops = xen_machine_ops; -#ifdef CONFIG_X86_64 - /* - * Setup percpu state. We only need to do this for 64-bit - * because 32-bit already has %fs set properly. - */ - load_percpu_segment(0); -#endif /* * The only reliable way to retain the initial address of the * percpu gdt_page is to remember it here, so we can go and -- cgit v0.10.2 From 68947b8f9a36f7f7f54ca95e0c6e169bb603e803 Mon Sep 17 00:00:00 2001 From: Jiri Kosina Date: Wed, 19 Aug 2009 22:07:44 -0700 Subject: Input: iforce - support new revision of ACT LABS Force RS Reported-by: cemede@gmail.com Signed-off-by: Jiri Kosina Signed-off-by: Dmitry Torokhov diff --git a/drivers/input/joystick/iforce/iforce-main.c b/drivers/input/joystick/iforce/iforce-main.c index baabf83..f6c688c 100644 --- a/drivers/input/joystick/iforce/iforce-main.c +++ b/drivers/input/joystick/iforce/iforce-main.c @@ -74,6 +74,7 @@ static struct iforce_device iforce_device[] = { { 0x05ef, 0x8884, "AVB Mag Turbo Force", btn_avb_wheel, abs_wheel, ff_iforce }, { 0x05ef, 0x8888, "AVB Top Shot Force Feedback Racing Wheel", btn_avb_tw, abs_wheel, ff_iforce }, //? { 0x061c, 0xc0a4, "ACT LABS Force RS", btn_wheel, abs_wheel, ff_iforce }, //? + { 0x061c, 0xc084, "ACT LABS Force RS", btn_wheel, abs_wheel, ff_iforce }, { 0x06f8, 0x0001, "Guillemot Race Leader Force Feedback", btn_wheel, abs_wheel, ff_iforce }, //? { 0x06f8, 0x0004, "Guillemot Force Feedback Racing Wheel", btn_wheel, abs_wheel, ff_iforce }, //? { 0x06f8, 0x0004, "Gullemot Jet Leader 3D", btn_joystick, abs_joystick, ff_iforce }, //? diff --git a/drivers/input/joystick/iforce/iforce-usb.c b/drivers/input/joystick/iforce/iforce-usb.c index f83185a..9f289d8 100644 --- a/drivers/input/joystick/iforce/iforce-usb.c +++ b/drivers/input/joystick/iforce/iforce-usb.c @@ -223,6 +223,7 @@ static struct usb_device_id iforce_usb_ids [] = { { USB_DEVICE(0x05ef, 0x8884) }, /* AVB Mag Turbo Force */ { USB_DEVICE(0x05ef, 0x8888) }, /* AVB Top Shot FFB Racing Wheel */ { USB_DEVICE(0x061c, 0xc0a4) }, /* ACT LABS Force RS */ + { USB_DEVICE(0x061c, 0xc084) }, /* ACT LABS Force RS */ { USB_DEVICE(0x06f8, 0x0001) }, /* Guillemot Race Leader Force Feedback */ { USB_DEVICE(0x06f8, 0x0004) }, /* Guillemot Force Feedback Racing Wheel */ { USB_DEVICE(0x06f8, 0xa302) }, /* Guillemot Jet Leader 3D */ -- cgit v0.10.2 From d3b325f9c25be6d504bc73afce7f92d0e25001d7 Mon Sep 17 00:00:00 2001 From: Petri Gynther Date: Thu, 20 Aug 2009 02:21:27 -0700 Subject: ibm_newemac: emac_close() needs to call netif_carrier_off() When ibm_newemac netdev instance is shutdown with "ifconfig down", the netdev interface does not go properly down. netif_carrier_ok() keeps returning TRUE even after "ifconfig down". The problem can be seen when ibm_newemac instances are slaves of a bonding interface. The bonding interface code uses netif_carrier_ok() to determine the link status of its slaves. When ibm_newemac slave is shutdown with "ifconfig down", the bonding interface won't detect any link status change because netif_carrier_ok() keeps returning TRUE. Signed-off-by: Petri Gynther Signed-off-by: David S. Miller diff --git a/drivers/net/ibm_newemac/core.c b/drivers/net/ibm_newemac/core.c index beb8421..f0f8908 100644 --- a/drivers/net/ibm_newemac/core.c +++ b/drivers/net/ibm_newemac/core.c @@ -1305,6 +1305,8 @@ static int emac_close(struct net_device *ndev) free_irq(dev->emac_irq, dev); + netif_carrier_off(ndev); + return 0; } -- cgit v0.10.2 From c82f63e411f1b58427c103bd95af2863b1c96dd1 Mon Sep 17 00:00:00 2001 From: Alek Du Date: Sat, 8 Aug 2009 08:46:19 +0800 Subject: PCI: check saved state before restore Without the check, the config space may be filled with zeros. Though the driver should try to avoid call restoring before saving, but the pci layer also should check this. Also removes the existing check in pci_restore_standard_config, since it's superfluous with the new check in restore_state. Acked-by: Rafael J. Wysocki Signed-off-by: Alek Du Signed-off-by: Jesse Barnes diff --git a/drivers/pci/pci-driver.c b/drivers/pci/pci-driver.c index d76c4c8..f99bc7f 100644 --- a/drivers/pci/pci-driver.c +++ b/drivers/pci/pci-driver.c @@ -508,7 +508,7 @@ static int pci_restore_standard_config(struct pci_dev *pci_dev) return error; } - return pci_dev->state_saved ? pci_restore_state(pci_dev) : 0; + return pci_restore_state(pci_dev); } static void pci_pm_default_resume_noirq(struct pci_dev *pci_dev) diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c index dbd0f94..7b70312 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -846,6 +846,8 @@ pci_restore_state(struct pci_dev *dev) int i; u32 val; + if (!dev->state_saved) + return 0; /* PCI Express register must be restored first */ pci_restore_pcie_state(dev); -- cgit v0.10.2 From dcc4ec26942d3bae2c5a82ab8346ab53b540a171 Mon Sep 17 00:00:00 2001 From: Nishanth Menon Date: Thu, 20 Aug 2009 11:21:14 -0500 Subject: i2c-omap: Fix I2C status ACK I2C status ack for [RX]RDR and [RX]RDY could cause race conditions of clearing the event twice and a violation of the programing sequence as defined in TRM This patch fixes the same. Signed-off-by: Nishanth Menon Signed-off-by: Moiz Sonasath Signed-off-by: Ben Dooks diff --git a/drivers/i2c/busses/i2c-omap.c b/drivers/i2c/busses/i2c-omap.c index d258b02..94639d0 100644 --- a/drivers/i2c/busses/i2c-omap.c +++ b/drivers/i2c/busses/i2c-omap.c @@ -674,7 +674,14 @@ omap_i2c_isr(int this_irq, void *dev_id) err = 0; complete: - omap_i2c_write_reg(dev, OMAP_I2C_STAT_REG, stat); + /* + * Ack the stat in one go, but [R/X]DR and [R/X]RDY should be + * acked after the data operation is complete. + * Ref: TRM SWPU114Q Figure 18-31 + */ + omap_i2c_write_reg(dev, OMAP_I2C_STAT_REG, stat & + ~(OMAP_I2C_STAT_RRDY | OMAP_I2C_STAT_RDR | + OMAP_I2C_STAT_XRDY | OMAP_I2C_STAT_XDR)); if (stat & OMAP_I2C_STAT_NACK) { err |= OMAP_I2C_STAT_NACK; -- cgit v0.10.2 From dd11976aea15bde53ce40b076dd5fa462c74f41a Mon Sep 17 00:00:00 2001 From: Moiz Sonasath Date: Thu, 20 Aug 2009 11:21:15 -0500 Subject: i2c-omap: ACK pending [R/X]DR and [R/X]RDY interrupts ACK any pending read/write interrupts before exiting the ISR either after completing the operation [ARDY interrupt] or in case of an error [NACK|AL interrupt] Signed-off-by: Moiz Sonasath Signed-off-by: Vikram Pandita Signed-off-by: Ben Dooks diff --git a/drivers/i2c/busses/i2c-omap.c b/drivers/i2c/busses/i2c-omap.c index 94639d0..16b39f4 100644 --- a/drivers/i2c/busses/i2c-omap.c +++ b/drivers/i2c/busses/i2c-omap.c @@ -694,6 +694,9 @@ complete: } if (stat & (OMAP_I2C_STAT_ARDY | OMAP_I2C_STAT_NACK | OMAP_I2C_STAT_AL)) { + omap_i2c_ack_stat(dev, stat & + (OMAP_I2C_STAT_RRDY | OMAP_I2C_STAT_RDR | + OMAP_I2C_STAT_XRDY | OMAP_I2C_STAT_XDR)); omap_i2c_complete_cmd(dev, err); return IRQ_HANDLED; } -- cgit v0.10.2 From 61149787d65b4a2f9c638d363dc65e13cb063e29 Mon Sep 17 00:00:00 2001 From: Moiz Sonasath Date: Thu, 20 Aug 2009 11:21:16 -0500 Subject: i2c-omap: Enable workaround for Errata 1.153 based on Silicon Errata 1.153 has been fixed on OMAP 3630|4430 with the use of a later version of I2C IP block. The errata impacts OMAP 2420|2430|3430, enable the workaround for these based on I2C IP block revision number instead of OMAP CPU type Signed-off-by: Moiz Sonasath Signed-off-by: Vikram Pandita Signed-off-by: Ben Dooks diff --git a/drivers/i2c/busses/i2c-omap.c b/drivers/i2c/busses/i2c-omap.c index 16b39f4..827da08 100644 --- a/drivers/i2c/busses/i2c-omap.c +++ b/drivers/i2c/busses/i2c-omap.c @@ -784,7 +784,7 @@ complete: * memory to the I2C interface. */ - if (cpu_is_omap34xx()) { + if (dev->rev <= OMAP_I2C_REV_ON_3430) { while (!(stat & OMAP_I2C_STAT_XUDF)) { if (stat & (OMAP_I2C_STAT_NACK | OMAP_I2C_STAT_AL)) { omap_i2c_ack_stat(dev, stat & (OMAP_I2C_STAT_XRDY | OMAP_I2C_STAT_XDR)); -- cgit v0.10.2 From c37faafa7d46622b749437f7d294201a63af4beb Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Thu, 13 Aug 2009 22:14:23 +0200 Subject: i2c-stu300: I2C STU300 stability updates - blk clk is enabled when an irq arrives. The clk should be enabled, but just to make sure. - All error bits are handled no matter state machine state - All irq's will run complete() except for irq's that wasn't an event. - No more looking into status registers just in case an interrupt has happend and the irq handle wasn't executed. - irq_disable/enable are now separete functions. - clk settings calculation changed to round upwards instead of downwards. - Number of address send attempts before giving up is increased to 12 from 10 since it most times take 8 tries before getting through. Signed-off-by: Linus Walleij Signed-off-by: Ben Dooks diff --git a/drivers/i2c/busses/i2c-stu300.c b/drivers/i2c/busses/i2c-stu300.c index 182e711..d2728a2 100644 --- a/drivers/i2c/busses/i2c-stu300.c +++ b/drivers/i2c/busses/i2c-stu300.c @@ -117,7 +117,8 @@ enum stu300_error { STU300_ERROR_NONE = 0, STU300_ERROR_ACKNOWLEDGE_FAILURE, STU300_ERROR_BUS_ERROR, - STU300_ERROR_ARBITRATION_LOST + STU300_ERROR_ARBITRATION_LOST, + STU300_ERROR_UNKNOWN }; /* timeout waiting for the controller to respond */ @@ -127,7 +128,7 @@ enum stu300_error { * The number of address send athemps tried before giving up. * If the first one failes it seems like 5 to 8 attempts are required. */ -#define NUM_ADDR_RESEND_ATTEMPTS 10 +#define NUM_ADDR_RESEND_ATTEMPTS 12 /* I2C clock speed, in Hz 0-400kHz*/ static unsigned int scl_frequency = 100000; @@ -149,6 +150,7 @@ module_param(scl_frequency, uint, 0644); * @msg_index: index of current message * @msg_len: length of current message */ + struct stu300_dev { struct platform_device *pdev; struct i2c_adapter adapter; @@ -188,6 +190,27 @@ static inline u32 stu300_r8(void __iomem *address) return readl(address) & 0x000000FFU; } +static void stu300_irq_enable(struct stu300_dev *dev) +{ + u32 val; + val = stu300_r8(dev->virtbase + I2C_CR); + val |= I2C_CR_INTERRUPT_ENABLE; + /* Twice paranoia (possible HW glitch) */ + stu300_wr8(val, dev->virtbase + I2C_CR); + stu300_wr8(val, dev->virtbase + I2C_CR); +} + +static void stu300_irq_disable(struct stu300_dev *dev) +{ + u32 val; + val = stu300_r8(dev->virtbase + I2C_CR); + val &= ~I2C_CR_INTERRUPT_ENABLE; + /* Twice paranoia (possible HW glitch) */ + stu300_wr8(val, dev->virtbase + I2C_CR); + stu300_wr8(val, dev->virtbase + I2C_CR); +} + + /* * Tells whether a certain event or events occurred in * response to a command. The events represent states in @@ -196,9 +219,10 @@ static inline u32 stu300_r8(void __iomem *address) * documentation and can only be treated as abstract state * machine states. * - * @ret 0 = event has not occurred, any other value means - * the event occurred. + * @ret 0 = event has not occurred or unknown error, any + * other value means the correct event occurred or an error. */ + static int stu300_event_occurred(struct stu300_dev *dev, enum stu300_event mr_event) { u32 status1; @@ -206,11 +230,28 @@ static int stu300_event_occurred(struct stu300_dev *dev, /* What event happened? */ status1 = stu300_r8(dev->virtbase + I2C_SR1); + if (!(status1 & I2C_SR1_EVF_IND)) /* No event at all */ return 0; + status2 = stu300_r8(dev->virtbase + I2C_SR2); + /* Block any multiple interrupts */ + stu300_irq_disable(dev); + + /* Check for errors first */ + if (status2 & I2C_SR2_AF_IND) { + dev->cmd_err = STU300_ERROR_ACKNOWLEDGE_FAILURE; + return 1; + } else if (status2 & I2C_SR2_BERR_IND) { + dev->cmd_err = STU300_ERROR_BUS_ERROR; + return 1; + } else if (status2 & I2C_SR2_ARLO_IND) { + dev->cmd_err = STU300_ERROR_ARBITRATION_LOST; + return 1; + } + switch (mr_event) { case STU300_EVENT_1: if (status1 & I2C_SR1_ADSL_IND) @@ -221,10 +262,6 @@ static int stu300_event_occurred(struct stu300_dev *dev, case STU300_EVENT_7: case STU300_EVENT_8: if (status1 & I2C_SR1_BTF_IND) { - if (status2 & I2C_SR2_AF_IND) - dev->cmd_err = STU300_ERROR_ACKNOWLEDGE_FAILURE; - else if (status2 & I2C_SR2_BERR_IND) - dev->cmd_err = STU300_ERROR_BUS_ERROR; return 1; } break; @@ -240,8 +277,6 @@ static int stu300_event_occurred(struct stu300_dev *dev, case STU300_EVENT_6: if (status2 & I2C_SR2_ENDAD_IND) { /* First check for any errors */ - if (status2 & I2C_SR2_AF_IND) - dev->cmd_err = STU300_ERROR_ACKNOWLEDGE_FAILURE; return 1; } break; @@ -252,8 +287,15 @@ static int stu300_event_occurred(struct stu300_dev *dev, default: break; } - if (status2 & I2C_SR2_ARLO_IND) - dev->cmd_err = STU300_ERROR_ARBITRATION_LOST; + /* If we get here, we're on thin ice. + * Here we are in a status where we have + * gotten a response that does not match + * what we requested. + */ + dev->cmd_err = STU300_ERROR_UNKNOWN; + dev_err(&dev->pdev->dev, + "Unhandled interrupt! %d sr1: 0x%x sr2: 0x%x\n", + mr_event, status1, status2); return 0; } @@ -262,21 +304,20 @@ static irqreturn_t stu300_irh(int irq, void *data) struct stu300_dev *dev = data; int res; + /* Just make sure that the block is clocked */ + clk_enable(dev->clk); + /* See if this was what we were waiting for */ spin_lock(&dev->cmd_issue_lock); - if (dev->cmd_event != STU300_EVENT_NONE) { - res = stu300_event_occurred(dev, dev->cmd_event); - if (res || dev->cmd_err != STU300_ERROR_NONE) { - u32 val; - - complete(&dev->cmd_complete); - /* Block any multiple interrupts */ - val = stu300_r8(dev->virtbase + I2C_CR); - val &= ~I2C_CR_INTERRUPT_ENABLE; - stu300_wr8(val, dev->virtbase + I2C_CR); - } - } + + res = stu300_event_occurred(dev, dev->cmd_event); + if (res || dev->cmd_err != STU300_ERROR_NONE) + complete(&dev->cmd_complete); + spin_unlock(&dev->cmd_issue_lock); + + clk_disable(dev->clk); + return IRQ_HANDLED; } @@ -308,7 +349,6 @@ static int stu300_start_and_await_event(struct stu300_dev *dev, stu300_wr8(cr_value, dev->virtbase + I2C_CR); ret = wait_for_completion_interruptible_timeout(&dev->cmd_complete, STU300_TIMEOUT); - if (ret < 0) { dev_err(&dev->pdev->dev, "wait_for_completion_interruptible_timeout() " @@ -342,7 +382,6 @@ static int stu300_await_event(struct stu300_dev *dev, enum stu300_event mr_event) { int ret; - u32 val; if (unlikely(irqs_disabled())) { /* TODO: implement polling for this case if need be. */ @@ -354,36 +393,18 @@ static int stu300_await_event(struct stu300_dev *dev, /* Is it already here? */ spin_lock_irq(&dev->cmd_issue_lock); dev->cmd_err = STU300_ERROR_NONE; - if (stu300_event_occurred(dev, mr_event)) { - spin_unlock_irq(&dev->cmd_issue_lock); - goto exit_await_check_err; - } - init_completion(&dev->cmd_complete); - dev->cmd_err = STU300_ERROR_NONE; dev->cmd_event = mr_event; - /* Turn on the I2C interrupt for current operation */ - val = stu300_r8(dev->virtbase + I2C_CR); - val |= I2C_CR_INTERRUPT_ENABLE; - stu300_wr8(val, dev->virtbase + I2C_CR); - - /* Twice paranoia (possible HW glitch) */ - stu300_wr8(val, dev->virtbase + I2C_CR); + init_completion(&dev->cmd_complete); - /* Check again: is it already here? */ - if (unlikely(stu300_event_occurred(dev, mr_event))) { - /* Disable IRQ again. */ - val &= ~I2C_CR_INTERRUPT_ENABLE; - stu300_wr8(val, dev->virtbase + I2C_CR); - spin_unlock_irq(&dev->cmd_issue_lock); - goto exit_await_check_err; - } + /* Turn on the I2C interrupt for current operation */ + stu300_irq_enable(dev); /* Unlock the command block and wait for the event to occur */ spin_unlock_irq(&dev->cmd_issue_lock); + ret = wait_for_completion_interruptible_timeout(&dev->cmd_complete, STU300_TIMEOUT); - if (ret < 0) { dev_err(&dev->pdev->dev, "wait_for_completion_interruptible_timeout()" @@ -401,7 +422,6 @@ static int stu300_await_event(struct stu300_dev *dev, return -ETIMEDOUT; } - exit_await_check_err: if (dev->cmd_err != STU300_ERROR_NONE) { if (mr_event != STU300_EVENT_6) { dev_err(&dev->pdev->dev, "controller " @@ -457,18 +477,19 @@ struct stu300_clkset { }; static const struct stu300_clkset stu300_clktable[] = { - { 0, 0xFFU }, - { 2500000, I2C_OAR2_FR_25_10MHZ }, - { 10000000, I2C_OAR2_FR_10_1667MHZ }, - { 16670000, I2C_OAR2_FR_1667_2667MHZ }, - { 26670000, I2C_OAR2_FR_2667_40MHZ }, - { 40000000, I2C_OAR2_FR_40_5333MHZ }, - { 53330000, I2C_OAR2_FR_5333_66MHZ }, - { 66000000, I2C_OAR2_FR_66_80MHZ }, - { 80000000, I2C_OAR2_FR_80_100MHZ }, + { 0, 0xFFU }, + { 2500000, I2C_OAR2_FR_25_10MHZ }, + { 10000000, I2C_OAR2_FR_10_1667MHZ }, + { 16670000, I2C_OAR2_FR_1667_2667MHZ }, + { 26670000, I2C_OAR2_FR_2667_40MHZ }, + { 40000000, I2C_OAR2_FR_40_5333MHZ }, + { 53330000, I2C_OAR2_FR_5333_66MHZ }, + { 66000000, I2C_OAR2_FR_66_80MHZ }, + { 80000000, I2C_OAR2_FR_80_100MHZ }, { 100000000, 0xFFU }, }; + static int stu300_set_clk(struct stu300_dev *dev, unsigned long clkrate) { @@ -494,10 +515,10 @@ static int stu300_set_clk(struct stu300_dev *dev, unsigned long clkrate) if (dev->speed > 100000) /* Fast Mode I2C */ - val = ((clkrate/dev->speed)-9)/3; + val = ((clkrate/dev->speed) - 9)/3 + 1; else /* Standard Mode I2C */ - val = ((clkrate/dev->speed)-7)/2; + val = ((clkrate/dev->speed) - 7)/2 + 1; /* According to spec the divider must be > 2 */ if (val < 0x002) { @@ -557,6 +578,7 @@ static int stu300_init_hw(struct stu300_dev *dev) */ clkrate = clk_get_rate(dev->clk); ret = stu300_set_clk(dev, clkrate); + if (ret) return ret; /* @@ -641,7 +663,6 @@ static int stu300_xfer_msg(struct i2c_adapter *adap, int attempts = 0; struct stu300_dev *dev = i2c_get_adapdata(adap); - clk_enable(dev->clk); /* Remove this if (0) to trace each and every message. */ @@ -715,14 +736,15 @@ static int stu300_xfer_msg(struct i2c_adapter *adap, if (attempts < NUM_ADDR_RESEND_ATTEMPTS && attempts > 0) { dev_dbg(&dev->pdev->dev, "managed to get address " - "through after %d attempts\n", attempts); + "through after %d attempts\n", attempts); } else if (attempts == NUM_ADDR_RESEND_ATTEMPTS) { dev_dbg(&dev->pdev->dev, "I give up, tried %d times " - "to resend address.\n", - NUM_ADDR_RESEND_ATTEMPTS); + "to resend address.\n", + NUM_ADDR_RESEND_ATTEMPTS); goto exit_disable; } + if (msg->flags & I2C_M_RD) { /* READ: we read the actual bytes one at a time */ for (i = 0; i < msg->len; i++) { @@ -804,8 +826,10 @@ static int stu300_xfer(struct i2c_adapter *adap, struct i2c_msg *msgs, { int ret = -1; int i; + struct stu300_dev *dev = i2c_get_adapdata(adap); dev->msg_len = num; + for (i = 0; i < num; i++) { /* * Another driver appears to send stop for each message, @@ -817,6 +841,7 @@ static int stu300_xfer(struct i2c_adapter *adap, struct i2c_msg *msgs, dev->msg_index = i; ret = stu300_xfer_msg(adap, &msgs[i], (i == (num - 1))); + if (ret != 0) { num = ret; break; @@ -845,6 +870,7 @@ stu300_probe(struct platform_device *pdev) struct resource *res; int bus_nr; int ret = 0; + char clk_name[] = "I2C0"; dev = kzalloc(sizeof(struct stu300_dev), GFP_KERNEL); if (!dev) { @@ -854,7 +880,8 @@ stu300_probe(struct platform_device *pdev) } bus_nr = pdev->id; - dev->clk = clk_get(&pdev->dev, NULL); + clk_name[3] += (char)bus_nr; + dev->clk = clk_get(&pdev->dev, clk_name); if (IS_ERR(dev->clk)) { ret = PTR_ERR(dev->clk); dev_err(&pdev->dev, "could not retrieve i2c bus clock\n"); -- cgit v0.10.2 From fc0ce23506d943b9eaa731a051769d0e0605eb03 Mon Sep 17 00:00:00 2001 From: Jan Beulich Date: Thu, 20 Aug 2009 16:14:15 +0100 Subject: x86: add vmlinux.lds to targets in arch/x86/boot/compressed/Makefile The absence of vmlinux.lds here keeps .vmlinux.lds.cmd from being included, which in turn leads to it and all its dependents always getting rebuilt independent of whether they are already up-to-date. Signed-off-by: Jan Beulich LKML-Reference: <4A8D84670200007800010D31@vpn.id2.novell.com> Signed-off-by: H. Peter Anvin diff --git a/arch/x86/boot/compressed/Makefile b/arch/x86/boot/compressed/Makefile index e2ff504..f8ed065 100644 --- a/arch/x86/boot/compressed/Makefile +++ b/arch/x86/boot/compressed/Makefile @@ -4,7 +4,7 @@ # create a compressed vmlinux image from the original vmlinux # -targets := vmlinux vmlinux.bin vmlinux.bin.gz vmlinux.bin.bz2 vmlinux.bin.lzma head_$(BITS).o misc.o piggy.o +targets := vmlinux.lds vmlinux vmlinux.bin vmlinux.bin.gz vmlinux.bin.bz2 vmlinux.bin.lzma head_$(BITS).o misc.o piggy.o KBUILD_CFLAGS := -m$(BITS) -D__KERNEL__ $(LINUX_INCLUDE) -O2 KBUILD_CFLAGS += -fno-strict-aliasing -fPIC -- cgit v0.10.2 From a8b88d3d49623ac701b5dc996cbd61219c793c7c Mon Sep 17 00:00:00 2001 From: Jan Kara Date: Thu, 20 Aug 2009 18:26:52 +0200 Subject: ocfs2: Add missing lock name There is missing name for NFSSync cluster lock. This makes lockdep unhappy because we end up passing NULL to lockdep when initializing lock key. Fix it. Signed-off-by: Jan Kara Signed-off-by: Joel Becker diff --git a/fs/ocfs2/ocfs2_lockid.h b/fs/ocfs2/ocfs2_lockid.h index fcdba09..c212cf5 100644 --- a/fs/ocfs2/ocfs2_lockid.h +++ b/fs/ocfs2/ocfs2_lockid.h @@ -108,6 +108,7 @@ static char *ocfs2_lock_type_strings[] = { [OCFS2_LOCK_TYPE_OPEN] = "Open", [OCFS2_LOCK_TYPE_FLOCK] = "Flock", [OCFS2_LOCK_TYPE_QINFO] = "Quota", + [OCFS2_LOCK_TYPE_NFS_SYNC] = "NFSSync", [OCFS2_LOCK_TYPE_ORPHAN_SCAN] = "OrphanScan", }; -- cgit v0.10.2 From e3b2415e281a97ade36d88404094a90cfea838c0 Mon Sep 17 00:00:00 2001 From: Dave Airlie Date: Fri, 21 Aug 2009 09:47:45 +1000 Subject: drm/radeon/kms: implement the bo busy ioctl properly. The previous patch assumes the ioctl already existed, when it actually didn't. It also didn't return the correct error code. Signed-off-by: Dave Airlie diff --git a/drivers/gpu/drm/radeon/radeon_gem.c b/drivers/gpu/drm/radeon/radeon_gem.c index d4ceff1..14c1998 100644 --- a/drivers/gpu/drm/radeon/radeon_gem.c +++ b/drivers/gpu/drm/radeon/radeon_gem.c @@ -283,7 +283,7 @@ int radeon_gem_busy_ioctl(struct drm_device *dev, void *data, mutex_lock(&dev->struct_mutex); drm_gem_object_unreference(gobj); mutex_unlock(&dev->struct_mutex); - return 0; + return r; } int radeon_gem_wait_idle_ioctl(struct drm_device *dev, void *data, diff --git a/drivers/gpu/drm/radeon/radeon_kms.c b/drivers/gpu/drm/radeon/radeon_kms.c index d2764bf..11ed672 100644 --- a/drivers/gpu/drm/radeon/radeon_kms.c +++ b/drivers/gpu/drm/radeon/radeon_kms.c @@ -318,5 +318,6 @@ struct drm_ioctl_desc radeon_ioctls_kms[] = { DRM_IOCTL_DEF(DRM_RADEON_INFO, radeon_info_ioctl, DRM_AUTH), DRM_IOCTL_DEF(DRM_RADEON_GEM_SET_TILING, radeon_gem_set_tiling_ioctl, DRM_AUTH), DRM_IOCTL_DEF(DRM_RADEON_GEM_GET_TILING, radeon_gem_get_tiling_ioctl, DRM_AUTH), + DRM_IOCTL_DEF(DRM_RADEON_GEM_BUSY, radeon_gem_busy_ioctl, DRM_AUTH), }; int radeon_max_kms_ioctl = DRM_ARRAY_SIZE(radeon_ioctls_kms); diff --git a/include/drm/radeon_drm.h b/include/drm/radeon_drm.h index f81c323..b439255 100644 --- a/include/drm/radeon_drm.h +++ b/include/drm/radeon_drm.h @@ -508,6 +508,7 @@ typedef struct { #define DRM_RADEON_INFO 0x27 #define DRM_RADEON_GEM_SET_TILING 0x28 #define DRM_RADEON_GEM_GET_TILING 0x29 +#define DRM_RADEON_GEM_BUSY 0x2a #define DRM_IOCTL_RADEON_CP_INIT DRM_IOW( DRM_COMMAND_BASE + DRM_RADEON_CP_INIT, drm_radeon_init_t) #define DRM_IOCTL_RADEON_CP_START DRM_IO( DRM_COMMAND_BASE + DRM_RADEON_CP_START) @@ -548,6 +549,7 @@ typedef struct { #define DRM_IOCTL_RADEON_INFO DRM_IOWR(DRM_COMMAND_BASE + DRM_RADEON_INFO, struct drm_radeon_info) #define DRM_IOCTL_RADEON_SET_TILING DRM_IOWR(DRM_COMMAND_BASE + DRM_RADEON_GEM_SET_TILING, struct drm_radeon_gem_set_tiling) #define DRM_IOCTL_RADEON_GET_TILING DRM_IOWR(DRM_COMMAND_BASE + DRM_RADEON_GEM_GET_TILING, struct drm_radeon_gem_get_tiling) +#define DRM_IOCTL_RADEON_GEM_BUSY DRM_IOWR(DRM_COMMAND_BASE + DRM_RADEON_GEM_BUSY, struct drm_radeon_gem_busy) typedef struct drm_radeon_init { enum { -- cgit v0.10.2 From 08e4d534743f4e9af3602aebbc1cca9372762028 Mon Sep 17 00:00:00 2001 From: Thomas Hellstrom Date: Thu, 20 Aug 2009 19:02:31 +1000 Subject: drm: Fix sysfs device confusion. The drm sysfs class suspend / resume methods could not distinguish between different device types wich could lead to illegal type casts. Use struct device_type and make sure the class suspend / resume callbacks are aware of those. There is no per device-type suspend / resume. Only new-style PM. Signed-off-by: Thomas Hellstrom Reviewed-by: Jesse Barnes Signed-off-by: Dave Airlie diff --git a/drivers/gpu/drm/drm_sysfs.c b/drivers/gpu/drm/drm_sysfs.c index 85ec31b..f7a615b 100644 --- a/drivers/gpu/drm/drm_sysfs.c +++ b/drivers/gpu/drm/drm_sysfs.c @@ -22,44 +22,50 @@ #define to_drm_minor(d) container_of(d, struct drm_minor, kdev) #define to_drm_connector(d) container_of(d, struct drm_connector, kdev) +static struct device_type drm_sysfs_device_minor = { + .name = "drm_minor" +}; + /** - * drm_sysfs_suspend - DRM class suspend hook + * drm_class_suspend - DRM class suspend hook * @dev: Linux device to suspend * @state: power state to enter * * Just figures out what the actual struct drm_device associated with * @dev is and calls its suspend hook, if present. */ -static int drm_sysfs_suspend(struct device *dev, pm_message_t state) +static int drm_class_suspend(struct device *dev, pm_message_t state) { - struct drm_minor *drm_minor = to_drm_minor(dev); - struct drm_device *drm_dev = drm_minor->dev; - - if (drm_minor->type == DRM_MINOR_LEGACY && - !drm_core_check_feature(drm_dev, DRIVER_MODESET) && - drm_dev->driver->suspend) - return drm_dev->driver->suspend(drm_dev, state); - + if (dev->type == &drm_sysfs_device_minor) { + struct drm_minor *drm_minor = to_drm_minor(dev); + struct drm_device *drm_dev = drm_minor->dev; + + if (drm_minor->type == DRM_MINOR_LEGACY && + !drm_core_check_feature(drm_dev, DRIVER_MODESET) && + drm_dev->driver->suspend) + return drm_dev->driver->suspend(drm_dev, state); + } return 0; } /** - * drm_sysfs_resume - DRM class resume hook + * drm_class_resume - DRM class resume hook * @dev: Linux device to resume * * Just figures out what the actual struct drm_device associated with * @dev is and calls its resume hook, if present. */ -static int drm_sysfs_resume(struct device *dev) +static int drm_class_resume(struct device *dev) { - struct drm_minor *drm_minor = to_drm_minor(dev); - struct drm_device *drm_dev = drm_minor->dev; - - if (drm_minor->type == DRM_MINOR_LEGACY && - !drm_core_check_feature(drm_dev, DRIVER_MODESET) && - drm_dev->driver->resume) - return drm_dev->driver->resume(drm_dev); - + if (dev->type == &drm_sysfs_device_minor) { + struct drm_minor *drm_minor = to_drm_minor(dev); + struct drm_device *drm_dev = drm_minor->dev; + + if (drm_minor->type == DRM_MINOR_LEGACY && + !drm_core_check_feature(drm_dev, DRIVER_MODESET) && + drm_dev->driver->resume) + return drm_dev->driver->resume(drm_dev); + } return 0; } @@ -99,8 +105,8 @@ struct class *drm_sysfs_create(struct module *owner, char *name) goto err_out; } - class->suspend = drm_sysfs_suspend; - class->resume = drm_sysfs_resume; + class->suspend = drm_class_suspend; + class->resume = drm_class_resume; err = class_create_file(class, &class_attr_version); if (err) @@ -480,6 +486,7 @@ int drm_sysfs_device_add(struct drm_minor *minor) minor->kdev.class = drm_class; minor->kdev.release = drm_sysfs_device_release; minor->kdev.devt = minor->device; + minor->kdev.type = &drm_sysfs_device_minor; if (minor->type == DRM_MINOR_CONTROL) minor_str = "controlD%d"; else if (minor->type == DRM_MINOR_RENDER) -- cgit v0.10.2 From 17782d99502851dc7e48114ee9c5a6d6741cba18 Mon Sep 17 00:00:00 2001 From: Dave Airlie Date: Fri, 21 Aug 2009 10:07:54 +1000 Subject: drm/radeon/kms: add r100/r200 OQ support. This adds the relocation necessary for OQ support on the r100/r200 chipsets. Signed-off-by: Dave Airlie diff --git a/drivers/gpu/drm/radeon/r100.c b/drivers/gpu/drm/radeon/r100.c index 90ff8e0..68e728e 100644 --- a/drivers/gpu/drm/radeon/r100.c +++ b/drivers/gpu/drm/radeon/r100.c @@ -1091,6 +1091,16 @@ static int r100_packet0_check(struct radeon_cs_parser *p, tmp |= tile_flags; ib[idx] = tmp; break; + case RADEON_RB3D_ZPASS_ADDR: + r = r100_cs_packet_next_reloc(p, &reloc); + if (r) { + DRM_ERROR("No reloc for ib[%d]=0x%04X\n", + idx, reg); + r100_cs_dump_packet(p, pkt); + return r; + } + ib[idx] = ib_chunk->kdata[idx] + ((u32)reloc->lobj.gpu_offset); + break; default: /* FIXME: we don't want to allow anyothers packet */ break; diff --git a/drivers/gpu/drm/radeon/radeon_reg.h b/drivers/gpu/drm/radeon/radeon_reg.h index 5a098f3..5834497 100644 --- a/drivers/gpu/drm/radeon/radeon_reg.h +++ b/drivers/gpu/drm/radeon/radeon_reg.h @@ -2337,6 +2337,9 @@ # define RADEON_RE_WIDTH_SHIFT 0 # define RADEON_RE_HEIGHT_SHIFT 16 +#define RADEON_RB3D_ZPASS_DATA 0x3290 +#define RADEON_RB3D_ZPASS_ADDR 0x3294 + #define RADEON_SE_CNTL 0x1c4c # define RADEON_FFACE_CULL_CW (0 << 0) # define RADEON_FFACE_CULL_CCW (1 << 0) -- cgit v0.10.2 From c795b33ba171e41563ab7e25105c0cd4edd81cd7 Mon Sep 17 00:00:00 2001 From: Goldwyn Rodrigues Date: Thu, 20 Aug 2009 13:43:19 -0500 Subject: ocfs2/dlm: Wait on lockres instead of erroring cancel requests In case a downconvert is queued, and a flock receives a signal, BUG_ON(lockres->l_action != OCFS2_AST_INVALID) is triggered because a lock cancel triggers a dlmunlock while an AST is scheduled. To avoid this, allow a LKM_CANCEL to pass through, and let it wait on __dlm_wait_on_lockres(). Signed-off-by: Goldwyn Rodrigues Acked-off-by: Mark Fasheh Signed-off-by: Joel Becker diff --git a/fs/ocfs2/dlm/dlmunlock.c b/fs/ocfs2/dlm/dlmunlock.c index fcf879e..756f5b0 100644 --- a/fs/ocfs2/dlm/dlmunlock.c +++ b/fs/ocfs2/dlm/dlmunlock.c @@ -122,7 +122,7 @@ static enum dlm_status dlmunlock_common(struct dlm_ctxt *dlm, * that still has AST's pending... */ in_use = !list_empty(&lock->ast_list); spin_unlock(&dlm->ast_lock); - if (in_use) { + if (in_use && !(flags & LKM_CANCEL)) { mlog(ML_ERROR, "lockres %.*s: Someone is calling dlmunlock " "while waiting for an ast!", res->lockname.len, res->lockname.name); @@ -131,7 +131,7 @@ static enum dlm_status dlmunlock_common(struct dlm_ctxt *dlm, spin_lock(&res->spinlock); if (res->state & DLM_LOCK_RES_IN_PROGRESS) { - if (master_node) { + if (master_node && !(flags & LKM_CANCEL)) { mlog(ML_ERROR, "lockres in progress!\n"); spin_unlock(&res->spinlock); return DLM_FORWARD; -- cgit v0.10.2 From 3b7307c2d66dd575ef24b88898b4bc4bddb254f4 Mon Sep 17 00:00:00 2001 From: Dmitry Torokhov Date: Thu, 20 Aug 2009 21:41:04 -0700 Subject: Input: wacom - don't use on-stack memory for report buffers Tested-by: Martin Capitanio Signed-off-by: Dmitry Torokhov diff --git a/drivers/input/tablet/wacom_sys.c b/drivers/input/tablet/wacom_sys.c index a9d5031..ea30c98 100644 --- a/drivers/input/tablet/wacom_sys.c +++ b/drivers/input/tablet/wacom_sys.c @@ -388,6 +388,32 @@ static int wacom_parse_hid(struct usb_interface *intf, struct hid_descriptor *hi return result; } +static int wacom_query_tablet_data(struct usb_interface *intf) +{ + unsigned char *rep_data; + int limit = 0; + int error; + + rep_data = kmalloc(2, GFP_KERNEL); + if (!rep_data) + return -ENOMEM; + + do { + rep_data[0] = 2; + rep_data[1] = 2; + error = usb_set_report(intf, WAC_HID_FEATURE_REPORT, + 2, rep_data, 2); + if (error >= 0) + error = usb_get_report(intf, + WAC_HID_FEATURE_REPORT, 2, + rep_data, 2); + } while ((error < 0 || rep_data[1] != 2) && limit++ < 5); + + kfree(rep_data); + + return error < 0 ? error : 0; +} + static int wacom_probe(struct usb_interface *intf, const struct usb_device_id *id) { struct usb_device *dev = interface_to_usbdev(intf); @@ -398,7 +424,6 @@ static int wacom_probe(struct usb_interface *intf, const struct usb_device_id *i struct wacom_features *features; struct input_dev *input_dev; int error = -ENOMEM; - char rep_data[2], limit = 0; struct hid_descriptor *hid_desc; wacom = kzalloc(sizeof(struct wacom), GFP_KERNEL); @@ -489,20 +514,10 @@ static int wacom_probe(struct usb_interface *intf, const struct usb_device_id *i /* * Ask the tablet to report tablet data if it is not a Tablet PC. - * Repeat until it succeeds + * Note that if query fails it is not a hard failure. */ - if (wacom_wac->features->type != TABLETPC) { - do { - rep_data[0] = 2; - rep_data[1] = 2; - error = usb_set_report(intf, WAC_HID_FEATURE_REPORT, - 2, rep_data, 2); - if (error >= 0) - error = usb_get_report(intf, - WAC_HID_FEATURE_REPORT, 2, - rep_data, 2); - } while ((error < 0 || rep_data[1] != 2) && limit++ < 5); - } + if (wacom_wac->features->type != TABLETPC) + wacom_query_tablet_data(intf); usb_set_intfdata(intf, wacom); return 0; -- cgit v0.10.2 From 1700f5fde88f9a251037bc86bde538ee32c59905 Mon Sep 17 00:00:00 2001 From: Marek Vasut Date: Thu, 20 Aug 2009 22:05:53 -0700 Subject: Input: ucb1400_ts - enable ADC Filter This patch enables ADC filtering on UCB1400 codec by default. The benefit from this change is mostly on some Colibri boards where the ADCSYNC pin of the UCB1400 codec isn't connected causing the touchscreen to jitter very badly. This change has no visible effect on boards where the ADCSYNC pin is connected. Signed-off-by: Marek Vasut Tested-by: Palo Revak Signed-off-by: Dmitry Torokhov diff --git a/drivers/input/touchscreen/ucb1400_ts.c b/drivers/input/touchscreen/ucb1400_ts.c index 6954f55..3b345f9 100644 --- a/drivers/input/touchscreen/ucb1400_ts.c +++ b/drivers/input/touchscreen/ucb1400_ts.c @@ -345,6 +345,7 @@ static int ucb1400_ts_detect_irq(struct ucb1400_ts *ucb) static int ucb1400_ts_probe(struct platform_device *dev) { int error, x_res, y_res; + u16 fcsr; struct ucb1400_ts *ucb = dev->dev.platform_data; ucb->ts_idev = input_allocate_device(); @@ -382,6 +383,14 @@ static int ucb1400_ts_probe(struct platform_device *dev) ucb->ts_idev->evbit[0] = BIT_MASK(EV_ABS) | BIT_MASK(EV_KEY); ucb->ts_idev->keybit[BIT_WORD(BTN_TOUCH)] = BIT_MASK(BTN_TOUCH); + /* + * Enable ADC filter to prevent horrible jitter on Colibri. + * This also further reduces jitter on boards where ADCSYNC + * pin is connected. + */ + fcsr = ucb1400_reg_read(ucb->ac97, UCB_FCSR); + ucb1400_reg_write(ucb->ac97, UCB_FCSR, fcsr | UCB_FCSR_AVE); + ucb1400_adc_enable(ucb->ac97); x_res = ucb1400_ts_read_xres(ucb); y_res = ucb1400_ts_read_yres(ucb); diff --git a/include/linux/ucb1400.h b/include/linux/ucb1400.h index ed889f4..ae779bb 100644 --- a/include/linux/ucb1400.h +++ b/include/linux/ucb1400.h @@ -73,6 +73,10 @@ #define UCB_ADC_DATA 0x68 #define UCB_ADC_DAT_VALID (1 << 15) + +#define UCB_FCSR 0x6c +#define UCB_FCSR_AVE (1 << 12) + #define UCB_ADC_DAT_MASK 0x3ff #define UCB_ID 0x7e -- cgit v0.10.2 From 9b2fb2da4edfb163842800abbeb4c14bc1759469 Mon Sep 17 00:00:00 2001 From: Pavel Revak Date: Thu, 20 Aug 2009 22:30:54 -0700 Subject: Input: ucb1400_ts - enable interrupt unconditionally Sometimes, when using the touchscreen, it stops working till next restart and the following message is printed: ucb1400: unexpected IE_STATUS = 0x0 The following patch retriggers the touchscreen interrupt unconditionally. This prevents hanging of the touchscreen in case of bogus interrupt occurence. Signed-off-by: Pavel Revak Acked-by: Marek Vasut Signed-off-by: Dmitry Torokhov diff --git a/drivers/input/touchscreen/ucb1400_ts.c b/drivers/input/touchscreen/ucb1400_ts.c index 3b345f9..3a7a582 100644 --- a/drivers/input/touchscreen/ucb1400_ts.c +++ b/drivers/input/touchscreen/ucb1400_ts.c @@ -170,11 +170,11 @@ static void ucb1400_handle_pending_irq(struct ucb1400_ts *ucb) ucb1400_reg_write(ucb->ac97, UCB_IE_CLEAR, isr); ucb1400_reg_write(ucb->ac97, UCB_IE_CLEAR, 0); - if (isr & UCB_IE_TSPX) { + if (isr & UCB_IE_TSPX) ucb1400_ts_irq_disable(ucb->ac97); - enable_irq(ucb->irq); - } else - printk(KERN_ERR "ucb1400: unexpected IE_STATUS = %#x\n", isr); + else + dev_dbg(&ucb->ts_idev->dev, "ucb1400: unexpected IE_STATUS = %#x\n", isr); + enable_irq(ucb->irq); } static int ucb1400_ts_thread(void *_ucb) -- cgit v0.10.2 From ec9c96ef3cc0124cb94375b17faaa8cff5dfdf97 Mon Sep 17 00:00:00 2001 From: Kyle McMartin Date: Wed, 19 Aug 2009 21:17:08 -0400 Subject: dma-debug: Fix check_unmap null pointer dereference While it's debatable whether or not a NULL device argument to the DMA API functions is valid... since it certainly isn't valid on devices with an IOMMU... dma-debug really shouldn't be dereferencing null pointers either. Guard against that in err_printk and the driver_filter functions. A Fedora rawhide user was seeing this in one of the dvb drivers resulting in an oops on boot. [ A patch has been sent for testing to the driver, but I feel the dma debugging support should be fixed as well. (There's still a pile of legacy garbage in the kernel passing null pointers to dma_{alloc,free}_*. :( ] Signed-off-by: Kyle McMartin Cc: mchehab@infradead.org Cc: Joerg Roedel LKML-Reference: <20090820011708.GP25206@bombadil.infradead.org> Signed-off-by: Ingo Molnar diff --git a/lib/dma-debug.c b/lib/dma-debug.c index 65b0d99..58a9f9f 100644 --- a/lib/dma-debug.c +++ b/lib/dma-debug.c @@ -156,9 +156,13 @@ static bool driver_filter(struct device *dev) return true; /* driver filter on and initialized */ - if (current_driver && dev->driver == current_driver) + if (current_driver && dev && dev->driver == current_driver) return true; + /* driver filter on, but we can't filter on a NULL device... */ + if (!dev) + return false; + if (current_driver || !current_driver_name[0]) return false; @@ -183,17 +187,17 @@ static bool driver_filter(struct device *dev) return ret; } -#define err_printk(dev, entry, format, arg...) do { \ - error_count += 1; \ - if (driver_filter(dev) && \ - (show_all_errors || show_num_errors > 0)) { \ - WARN(1, "%s %s: " format, \ - dev_driver_string(dev), \ - dev_name(dev) , ## arg); \ - dump_entry_trace(entry); \ - } \ - if (!show_all_errors && show_num_errors > 0) \ - show_num_errors -= 1; \ +#define err_printk(dev, entry, format, arg...) do { \ + error_count += 1; \ + if (driver_filter(dev) && \ + (show_all_errors || show_num_errors > 0)) { \ + WARN(1, "%s %s: " format, \ + dev ? dev_driver_string(dev) : "NULL", \ + dev ? dev_name(dev) : "NULL", ## arg); \ + dump_entry_trace(entry); \ + } \ + if (!show_all_errors && show_num_errors > 0) \ + show_num_errors -= 1; \ } while (0); /* -- cgit v0.10.2 From 03e860bd9f6a3cca747b0795bed26279a8b420a0 Mon Sep 17 00:00:00 2001 From: "From: Nick Piggin" Date: Fri, 21 Aug 2009 10:09:44 +0200 Subject: btrfs: fix inode rbtree corruption Node may not be inserted over existing node. This causes inode tree corruption and I was seeing crashes in inode_tree_del which I can not reproduce after this patch. The other way to fix this would be to tie inode lifetime in the rbtree with inode while not in freeing state. I had a look at this but it is not so trivial at this point. At least this patch gets things working again. Signed-off-by: Nick Piggin Cc: Chris Mason Acked-by: Yan Zheng Signed-off-by: Jens Axboe diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index 272b9b2..59cba18 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -3099,8 +3099,12 @@ static void inode_tree_add(struct inode *inode) { struct btrfs_root *root = BTRFS_I(inode)->root; struct btrfs_inode *entry; - struct rb_node **p = &root->inode_tree.rb_node; - struct rb_node *parent = NULL; + struct rb_node **p; + struct rb_node *parent; + +again: + p = &root->inode_tree.rb_node; + parent = NULL; spin_lock(&root->inode_lock); while (*p) { @@ -3108,13 +3112,16 @@ static void inode_tree_add(struct inode *inode) entry = rb_entry(parent, struct btrfs_inode, rb_node); if (inode->i_ino < entry->vfs_inode.i_ino) - p = &(*p)->rb_left; + p = &parent->rb_left; else if (inode->i_ino > entry->vfs_inode.i_ino) - p = &(*p)->rb_right; + p = &parent->rb_right; else { WARN_ON(!(entry->vfs_inode.i_state & (I_WILL_FREE | I_FREEING | I_CLEAR))); - break; + rb_erase(parent, &root->inode_tree); + RB_CLEAR_NODE(parent); + spin_unlock(&root->inode_lock); + goto again; } } rb_link_node(&BTRFS_I(inode)->rb_node, parent, p); @@ -3126,12 +3133,12 @@ static void inode_tree_del(struct inode *inode) { struct btrfs_root *root = BTRFS_I(inode)->root; + spin_lock(&root->inode_lock); if (!RB_EMPTY_NODE(&BTRFS_I(inode)->rb_node)) { - spin_lock(&root->inode_lock); rb_erase(&BTRFS_I(inode)->rb_node, &root->inode_tree); - spin_unlock(&root->inode_lock); RB_CLEAR_NODE(&BTRFS_I(inode)->rb_node); } + spin_unlock(&root->inode_lock); } static noinline void init_btrfs_i(struct inode *inode) -- cgit v0.10.2 From f779b3e513478218cbaaaa0a506d7801cab6fd14 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Wed, 19 Aug 2009 19:11:39 -0400 Subject: drm/radeon: add GET_PARAM/INFO support for Z pipes Needed for occlusion queries on rv530 chips. Signed-off-by: Alex Deucher Signed-off-by: Dave Airlie diff --git a/drivers/gpu/drm/radeon/r300.c b/drivers/gpu/drm/radeon/r300.c index c47579d..053f4ec 100644 --- a/drivers/gpu/drm/radeon/r300.c +++ b/drivers/gpu/drm/radeon/r300.c @@ -448,6 +448,7 @@ void r300_gpu_init(struct radeon_device *rdev) /* rv350,rv370,rv380 */ rdev->num_gb_pipes = 1; } + rdev->num_z_pipes = 1; gb_tile_config = (R300_ENABLE_TILING | R300_TILE_SIZE_16); switch (rdev->num_gb_pipes) { case 2: @@ -486,7 +487,8 @@ void r300_gpu_init(struct radeon_device *rdev) printk(KERN_WARNING "Failed to wait MC idle while " "programming pipes. Bad things might happen.\n"); } - DRM_INFO("radeon: %d pipes initialized.\n", rdev->num_gb_pipes); + DRM_INFO("radeon: %d quad pipes, %d Z pipes initialized.\n", + rdev->num_gb_pipes, rdev->num_z_pipes); } int r300_ga_reset(struct radeon_device *rdev) diff --git a/drivers/gpu/drm/radeon/r420.c b/drivers/gpu/drm/radeon/r420.c index dea497a..97426a6 100644 --- a/drivers/gpu/drm/radeon/r420.c +++ b/drivers/gpu/drm/radeon/r420.c @@ -165,7 +165,18 @@ void r420_pipes_init(struct radeon_device *rdev) printk(KERN_WARNING "Failed to wait GUI idle while " "programming pipes. Bad things might happen.\n"); } - DRM_INFO("radeon: %d pipes initialized.\n", rdev->num_gb_pipes); + + if (rdev->family == CHIP_RV530) { + tmp = RREG32(RV530_GB_PIPE_SELECT2); + if ((tmp & 3) == 3) + rdev->num_z_pipes = 2; + else + rdev->num_z_pipes = 1; + } else + rdev->num_z_pipes = 1; + + DRM_INFO("radeon: %d quad pipes, %d z pipes initialized.\n", + rdev->num_gb_pipes, rdev->num_z_pipes); } void r420_gpu_init(struct radeon_device *rdev) diff --git a/drivers/gpu/drm/radeon/r520.c b/drivers/gpu/drm/radeon/r520.c index 09fb0b6..ebd6b0f 100644 --- a/drivers/gpu/drm/radeon/r520.c +++ b/drivers/gpu/drm/radeon/r520.c @@ -177,7 +177,6 @@ void r520_gpu_init(struct radeon_device *rdev) */ /* workaround for RV530 */ if (rdev->family == CHIP_RV530) { - WREG32(0x4124, 1); WREG32(0x4128, 0xFF); } r420_pipes_init(rdev); diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h index 79ad982..b519fb2 100644 --- a/drivers/gpu/drm/radeon/radeon.h +++ b/drivers/gpu/drm/radeon/radeon.h @@ -655,6 +655,7 @@ struct radeon_device { int usec_timeout; enum radeon_pll_errata pll_errata; int num_gb_pipes; + int num_z_pipes; int disp_priority; /* BIOS */ uint8_t *bios; diff --git a/drivers/gpu/drm/radeon/radeon_cp.c b/drivers/gpu/drm/radeon/radeon_cp.c index d835682..7a52c46 100644 --- a/drivers/gpu/drm/radeon/radeon_cp.c +++ b/drivers/gpu/drm/radeon/radeon_cp.c @@ -406,6 +406,15 @@ static void radeon_init_pipes(drm_radeon_private_t *dev_priv) { uint32_t gb_tile_config, gb_pipe_sel = 0; + if ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RV530) { + uint32_t z_pipe_sel = RADEON_READ(RV530_GB_PIPE_SELECT2); + if ((z_pipe_sel & 3) == 3) + dev_priv->num_z_pipes = 2; + else + dev_priv->num_z_pipes = 1; + } else + dev_priv->num_z_pipes = 1; + /* RS4xx/RS6xx/R4xx/R5xx */ if ((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_R420) { gb_pipe_sel = RADEON_READ(R400_GB_PIPE_SELECT); diff --git a/drivers/gpu/drm/radeon/radeon_drv.h b/drivers/gpu/drm/radeon/radeon_drv.h index 3933f82..6fa32da 100644 --- a/drivers/gpu/drm/radeon/radeon_drv.h +++ b/drivers/gpu/drm/radeon/radeon_drv.h @@ -100,9 +100,10 @@ * 1.28- Add support for VBL on CRTC2 * 1.29- R500 3D cmd buffer support * 1.30- Add support for occlusion queries + * 1.31- Add support for num Z pipes from GET_PARAM */ #define DRIVER_MAJOR 1 -#define DRIVER_MINOR 30 +#define DRIVER_MINOR 31 #define DRIVER_PATCHLEVEL 0 /* @@ -329,6 +330,7 @@ typedef struct drm_radeon_private { resource_size_t fb_aper_offset; int num_gb_pipes; + int num_z_pipes; int track_flush; drm_local_map_t *mmio; @@ -689,6 +691,7 @@ extern void r600_page_table_cleanup(struct drm_device *dev, struct drm_ati_pciga /* pipe config regs */ #define R400_GB_PIPE_SELECT 0x402c +#define RV530_GB_PIPE_SELECT2 0x4124 #define R500_DYN_SCLK_PWMEM_PIPE 0x000d /* PLL */ #define R300_GB_TILE_CONFIG 0x4018 # define R300_ENABLE_TILING (1 << 0) diff --git a/drivers/gpu/drm/radeon/radeon_kms.c b/drivers/gpu/drm/radeon/radeon_kms.c index 11ed672..dce09ad 100644 --- a/drivers/gpu/drm/radeon/radeon_kms.c +++ b/drivers/gpu/drm/radeon/radeon_kms.c @@ -95,6 +95,9 @@ int radeon_info_ioctl(struct drm_device *dev, void *data, struct drm_file *filp) case RADEON_INFO_NUM_GB_PIPES: value = rdev->num_gb_pipes; break; + case RADEON_INFO_NUM_Z_PIPES: + value = rdev->num_z_pipes; + break; default: DRM_DEBUG("Invalid request %d\n", info->request); return -EINVAL; diff --git a/drivers/gpu/drm/radeon/radeon_reg.h b/drivers/gpu/drm/radeon/radeon_reg.h index 5834497..4df43f6 100644 --- a/drivers/gpu/drm/radeon/radeon_reg.h +++ b/drivers/gpu/drm/radeon/radeon_reg.h @@ -3574,4 +3574,6 @@ #define RADEON_SCRATCH_REG4 0x15f0 #define RADEON_SCRATCH_REG5 0x15f4 +#define RV530_GB_PIPE_SELECT2 0x4124 + #endif diff --git a/drivers/gpu/drm/radeon/radeon_state.c b/drivers/gpu/drm/radeon/radeon_state.c index 46645f3..2882f40 100644 --- a/drivers/gpu/drm/radeon/radeon_state.c +++ b/drivers/gpu/drm/radeon/radeon_state.c @@ -3081,6 +3081,9 @@ static int radeon_cp_getparam(struct drm_device *dev, void *data, struct drm_fil case RADEON_PARAM_NUM_GB_PIPES: value = dev_priv->num_gb_pipes; break; + case RADEON_PARAM_NUM_Z_PIPES: + value = dev_priv->num_z_pipes; + break; default: DRM_DEBUG("Invalid parameter %d\n", param->param); return -EINVAL; diff --git a/include/drm/radeon_drm.h b/include/drm/radeon_drm.h index b439255..2ba61e1 100644 --- a/include/drm/radeon_drm.h +++ b/include/drm/radeon_drm.h @@ -709,6 +709,7 @@ typedef struct drm_radeon_indirect { #define RADEON_PARAM_FB_LOCATION 14 /* FB location */ #define RADEON_PARAM_NUM_GB_PIPES 15 /* num GB pipes */ #define RADEON_PARAM_DEVICE_ID 16 +#define RADEON_PARAM_NUM_Z_PIPES 17 /* num Z pipes */ typedef struct drm_radeon_getparam { int param; @@ -897,6 +898,7 @@ struct drm_radeon_cs { #define RADEON_INFO_DEVICE_ID 0x00 #define RADEON_INFO_NUM_GB_PIPES 0x01 +#define RADEON_INFO_NUM_Z_PIPES 0x02 struct drm_radeon_info { uint32_t request; -- cgit v0.10.2 From 4a683bf94b8a10e2bb0da07aec3ac0a55e5de61f Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Fri, 21 Aug 2009 12:53:36 +0200 Subject: tracing: Fix too large stack usage in do_one_initcall() One of my testboxes triggered this nasty stack overflow crash during SCSI probing: [ 5.874004] sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA [ 5.875004] device: 'sda': device_add [ 5.878004] BUG: unable to handle kernel NULL pointer dereference at 00000a0c [ 5.878004] IP: [] print_context_stack+0x81/0x110 [ 5.878004] *pde = 00000000 [ 5.878004] Thread overran stack, or stack corrupted [ 5.878004] Oops: 0000 [#1] PREEMPT SMP DEBUG_PAGEALLOC [ 5.878004] last sysfs file: [ 5.878004] [ 5.878004] Pid: 1, comm: swapper Not tainted (2.6.31-rc6-tip-01272-g9919e28-dirty #5685) [ 5.878004] EIP: 0060:[] EFLAGS: 00010083 CPU: 0 [ 5.878004] EIP is at print_context_stack+0x81/0x110 [ 5.878004] EAX: cf8a3000 EBX: cf8a3fe4 ECX: 00000049 EDX: 00000000 [ 5.878004] ESI: b1cfce84 EDI: 00000000 EBP: cf8a3018 ESP: cf8a2ff4 [ 5.878004] DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0068 [ 5.878004] Process swapper (pid: 1, ti=cf8a2000 task=cf8a8000 task.ti=cf8a3000) [ 5.878004] Stack: [ 5.878004] b1004867 fffff000 cf8a3ffc [ 5.878004] Call Trace: [ 5.878004] [] ? kernel_thread_helper+0x7/0x10 [ 5.878004] BUG: unable to handle kernel NULL pointer dereference at 00000a0c [ 5.878004] IP: [] print_context_stack+0x81/0x110 [ 5.878004] *pde = 00000000 [ 5.878004] Thread overran stack, or stack corrupted [ 5.878004] Oops: 0000 [#2] PREEMPT SMP DEBUG_PAGEALLOC The oops did not reveal any more details about the real stack that we have and the system got into an infinite loop of recursive pagefaults. So i booted with CONFIG_STACK_TRACER=y and the 'stacktrace' boot parameter. The box did not crash (timings/conditions probably changed a tiny bit to trigger the catastrophic crash), but the /debug/tracing/stack_trace file was rather revealing: Depth Size Location (72 entries) ----- ---- -------- 0) 3704 52 __change_page_attr+0xb8/0x290 1) 3652 24 __change_page_attr_set_clr+0x43/0x90 2) 3628 60 kernel_map_pages+0x108/0x120 3) 3568 40 prep_new_page+0x7d/0x130 4) 3528 84 get_page_from_freelist+0x106/0x420 5) 3444 116 __alloc_pages_nodemask+0xd7/0x550 6) 3328 36 allocate_slab+0xb1/0x100 7) 3292 36 new_slab+0x1c/0x160 8) 3256 36 __slab_alloc+0x133/0x2b0 9) 3220 4 kmem_cache_alloc+0x1bb/0x1d0 10) 3216 108 create_object+0x28/0x250 11) 3108 40 kmemleak_alloc+0x81/0xc0 12) 3068 24 kmem_cache_alloc+0x162/0x1d0 13) 3044 52 scsi_pool_alloc_command+0x29/0x70 14) 2992 20 scsi_host_alloc_command+0x22/0x70 15) 2972 24 __scsi_get_command+0x1b/0x90 16) 2948 28 scsi_get_command+0x35/0x90 17) 2920 24 scsi_setup_blk_pc_cmnd+0xd4/0x100 18) 2896 128 sd_prep_fn+0x332/0xa70 19) 2768 36 blk_peek_request+0xe7/0x1d0 20) 2732 56 scsi_request_fn+0x54/0x520 21) 2676 12 __generic_unplug_device+0x2b/0x40 22) 2664 24 blk_execute_rq_nowait+0x59/0x80 23) 2640 172 blk_execute_rq+0x6b/0xb0 24) 2468 32 scsi_execute+0xe0/0x140 25) 2436 64 scsi_execute_req+0x152/0x160 26) 2372 60 scsi_vpd_inquiry+0x6c/0x90 27) 2312 44 scsi_get_vpd_page+0x112/0x160 28) 2268 52 sd_revalidate_disk+0x1df/0x320 29) 2216 92 rescan_partitions+0x98/0x330 30) 2124 52 __blkdev_get+0x309/0x350 31) 2072 8 blkdev_get+0xf/0x20 32) 2064 44 register_disk+0xff/0x120 33) 2020 36 add_disk+0x6e/0xb0 34) 1984 44 sd_probe_async+0xfb/0x1d0 35) 1940 44 __async_schedule+0xf4/0x1b0 36) 1896 8 async_schedule+0x12/0x20 37) 1888 60 sd_probe+0x305/0x360 38) 1828 44 really_probe+0x63/0x170 39) 1784 36 driver_probe_device+0x5d/0x60 40) 1748 16 __device_attach+0x49/0x50 41) 1732 32 bus_for_each_drv+0x5b/0x80 42) 1700 24 device_attach+0x6b/0x70 43) 1676 16 bus_attach_device+0x47/0x60 44) 1660 76 device_add+0x33d/0x400 45) 1584 52 scsi_sysfs_add_sdev+0x6a/0x2c0 46) 1532 108 scsi_add_lun+0x44b/0x460 47) 1424 116 scsi_probe_and_add_lun+0x182/0x4e0 48) 1308 36 __scsi_add_device+0xd9/0xe0 49) 1272 44 ata_scsi_scan_host+0x10b/0x190 50) 1228 24 async_port_probe+0x96/0xd0 51) 1204 44 __async_schedule+0xf4/0x1b0 52) 1160 8 async_schedule+0x12/0x20 53) 1152 48 ata_host_register+0x171/0x1d0 54) 1104 60 ata_pci_sff_activate_host+0xf3/0x230 55) 1044 44 ata_pci_sff_init_one+0xea/0x100 56) 1000 48 amd_init_one+0xb2/0x190 57) 952 8 local_pci_probe+0x13/0x20 58) 944 32 pci_device_probe+0x68/0x90 59) 912 44 really_probe+0x63/0x170 60) 868 36 driver_probe_device+0x5d/0x60 61) 832 20 __driver_attach+0x89/0xa0 62) 812 32 bus_for_each_dev+0x5b/0x80 63) 780 12 driver_attach+0x1e/0x20 64) 768 72 bus_add_driver+0x14b/0x2d0 65) 696 36 driver_register+0x6e/0x150 66) 660 20 __pci_register_driver+0x53/0xc0 67) 640 8 amd_init+0x14/0x16 68) 632 572 do_one_initcall+0x2b/0x1d0 69) 60 12 do_basic_setup+0x56/0x6a 70) 48 20 kernel_init+0x84/0xce 71) 28 28 kernel_thread_helper+0x7/0x10 There's a lot of fat functions on that stack trace, but the largest of all is do_one_initcall(). This is due to the boot trace entry variables being on the stack. Fixing this is relatively easy, initcalls are fundamentally serialized, so we can move the local variables to file scope. Note that this large stack footprint was present for a couple of months already - what pushed my system over the edge was the addition of kmemleak to the call-chain: 6) 3328 36 allocate_slab+0xb1/0x100 7) 3292 36 new_slab+0x1c/0x160 8) 3256 36 __slab_alloc+0x133/0x2b0 9) 3220 4 kmem_cache_alloc+0x1bb/0x1d0 10) 3216 108 create_object+0x28/0x250 11) 3108 40 kmemleak_alloc+0x81/0xc0 12) 3068 24 kmem_cache_alloc+0x162/0x1d0 13) 3044 52 scsi_pool_alloc_command+0x29/0x70 This pushes the total to ~3800 bytes, only a tiny bit more was needed to corrupt the on-kernel-stack thread_info. The fix reduces the stack footprint from 572 bytes to 28 bytes. Cc: Peter Zijlstra Cc: Thomas Gleixner Cc: Frederic Weisbecker Cc: Steven Rostedt Cc: Catalin Marinas Cc: Jens Axboe Cc: Linus Torvalds Cc: LKML-Reference: Signed-off-by: Ingo Molnar diff --git a/init/main.c b/init/main.c index 2c5ade7..98e679e 100644 --- a/init/main.c +++ b/init/main.c @@ -733,13 +733,14 @@ static void __init do_ctors(void) int initcall_debug; core_param(initcall_debug, initcall_debug, bool, 0644); +static char msgbuf[64]; +static struct boot_trace_call call; +static struct boot_trace_ret ret; + int do_one_initcall(initcall_t fn) { int count = preempt_count(); ktime_t calltime, delta, rettime; - char msgbuf[64]; - struct boot_trace_call call; - struct boot_trace_ret ret; if (initcall_debug) { call.caller = task_pid_nr(current); -- cgit v0.10.2 From 4464fcaa9cbfc9c551956b48af203e2f775ca892 Mon Sep 17 00:00:00 2001 From: Peter Zijlstra Date: Fri, 21 Aug 2009 17:19:36 +0200 Subject: perf_counter: Fix typo in read() output generation When you iterate a list, using the iterator is useful. Before: ID: 5 ID: 5 ID: 5 ID: 5 EVNT: 0x40088b scale: nan ID: 5 CNT: 1006252 ID: 6 CNT: 1011090 ID: 7 CNT: 1011196 ID: 8 CNT: 1011095 EVNT: 0x40088c scale: 1.000000 ID: 5 CNT: 2003065 ID: 6 CNT: 2011671 ID: 7 CNT: 2012620 ID: 8 CNT: 2013479 EVNT: 0x40088c scale: 1.000000 ID: 5 CNT: 3002390 ID: 6 CNT: 3015996 ID: 7 CNT: 3018019 ID: 8 CNT: 3020006 EVNT: 0x40088b scale: 1.000000 ID: 5 CNT: 4002406 ID: 6 CNT: 4021120 ID: 7 CNT: 4024241 ID: 8 CNT: 4027059 After: ID: 1 ID: 2 ID: 3 ID: 4 EVNT: 0x400889 scale: nan ID: 1 CNT: 1005270 ID: 2 CNT: 1009833 ID: 3 CNT: 1010065 ID: 4 CNT: 1010088 EVNT: 0x400898 scale: nan ID: 1 CNT: 2001531 ID: 2 CNT: 2022309 ID: 3 CNT: 2022470 ID: 4 CNT: 2022627 EVNT: 0x400888 scale: 0.489467 ID: 1 CNT: 3001261 ID: 2 CNT: 3027088 ID: 3 CNT: 3027941 ID: 4 CNT: 3028762 Reported-by: stephane eranian Signed-off-by: Peter Zijlstra Cc: Paul Mackerras Cc: Corey J Ashford Cc: perfmon2-devel LKML-Reference: <1250867976.7538.73.camel@twins> Signed-off-by: Ingo Molnar diff --git a/kernel/perf_counter.c b/kernel/perf_counter.c index 36f65e2..f274e19 100644 --- a/kernel/perf_counter.c +++ b/kernel/perf_counter.c @@ -1791,7 +1791,7 @@ static int perf_counter_read_group(struct perf_counter *counter, size += err; list_for_each_entry(sub, &leader->sibling_list, list_entry) { - err = perf_counter_read_entry(counter, read_format, + err = perf_counter_read_entry(sub, read_format, buf + size); if (err < 0) return err; -- cgit v0.10.2 From 83d349f35e1ae72268c5104dbf9ab2ae635425d4 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Fri, 21 Aug 2009 09:23:57 -0700 Subject: x86: don't send an IPI to the empty set of CPU's MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The default_send_IPI_mask_logical() function uses the "flat" APIC mode to send an IPI to a set of CPU's at once, but if that set happens to be empty, some older local APIC's will apparently be rather unhappy. So just warn if a caller gives us an empty mask, and ignore it. This fixes a regression in 2.6.30.x, due to commit 4595f9620 ("x86: change flush_tlb_others to take a const struct cpumask"), documented here: http://bugzilla.kernel.org/show_bug.cgi?id=13933 which causes a silent lock-up. It only seems to happen on PPro, P2, P3 and Athlon XP cores. Most developers sadly (or not so sadly, if you're a developer..) have more modern CPU's. Also, on x86-64 we don't use the flat APIC mode, so it would never trigger there even if the APIC didn't like sending an empty IPI mask. Reported-by: Pavel Vilim Reported-and-tested-by: Thomas Björnell Reported-and-tested-by: Martin Rogge Cc: Mike Travis Cc: Ingo Molnar Cc: stable@kernel.org Signed-off-by: Linus Torvalds diff --git a/arch/x86/kernel/apic/ipi.c b/arch/x86/kernel/apic/ipi.c index dbf5445..6ef00ba 100644 --- a/arch/x86/kernel/apic/ipi.c +++ b/arch/x86/kernel/apic/ipi.c @@ -106,6 +106,9 @@ void default_send_IPI_mask_logical(const struct cpumask *cpumask, int vector) unsigned long mask = cpumask_bits(cpumask)[0]; unsigned long flags; + if (WARN_ONCE(!mask, "empty IPI mask")) + return; + local_irq_save(flags); WARN_ON(mask & ~cpumask_bits(cpu_online_mask)[0]); __default_send_IPI_dest_field(mask, vector, apic->dest_logical); -- cgit v0.10.2 From f4b0373b26567cafd421d91101852ed7a34e9e94 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Fri, 21 Aug 2009 09:26:15 -0700 Subject: Make bitmask 'and' operators return a result code When 'and'ing two bitmasks (where 'andnot' is a variation on it), some cases want to know whether the result is the empty set or not. In particular, the TLB IPI sending code wants to do cpumask operations and determine if there are any CPU's left in the final set. So this just makes the bitmask (and cpumask) functions return a boolean for whether the result has any bits set. Cc: stable@kernel.org (2.6.30, needed by TLB shootdown fix) Signed-off-by: Linus Torvalds diff --git a/include/linux/bitmap.h b/include/linux/bitmap.h index 2878811..756d78b 100644 --- a/include/linux/bitmap.h +++ b/include/linux/bitmap.h @@ -94,13 +94,13 @@ extern void __bitmap_shift_right(unsigned long *dst, const unsigned long *src, int shift, int bits); extern void __bitmap_shift_left(unsigned long *dst, const unsigned long *src, int shift, int bits); -extern void __bitmap_and(unsigned long *dst, const unsigned long *bitmap1, +extern int __bitmap_and(unsigned long *dst, const unsigned long *bitmap1, const unsigned long *bitmap2, int bits); extern void __bitmap_or(unsigned long *dst, const unsigned long *bitmap1, const unsigned long *bitmap2, int bits); extern void __bitmap_xor(unsigned long *dst, const unsigned long *bitmap1, const unsigned long *bitmap2, int bits); -extern void __bitmap_andnot(unsigned long *dst, const unsigned long *bitmap1, +extern int __bitmap_andnot(unsigned long *dst, const unsigned long *bitmap1, const unsigned long *bitmap2, int bits); extern int __bitmap_intersects(const unsigned long *bitmap1, const unsigned long *bitmap2, int bits); @@ -171,13 +171,12 @@ static inline void bitmap_copy(unsigned long *dst, const unsigned long *src, } } -static inline void bitmap_and(unsigned long *dst, const unsigned long *src1, +static inline int bitmap_and(unsigned long *dst, const unsigned long *src1, const unsigned long *src2, int nbits) { if (small_const_nbits(nbits)) - *dst = *src1 & *src2; - else - __bitmap_and(dst, src1, src2, nbits); + return (*dst = *src1 & *src2) != 0; + return __bitmap_and(dst, src1, src2, nbits); } static inline void bitmap_or(unsigned long *dst, const unsigned long *src1, @@ -198,13 +197,12 @@ static inline void bitmap_xor(unsigned long *dst, const unsigned long *src1, __bitmap_xor(dst, src1, src2, nbits); } -static inline void bitmap_andnot(unsigned long *dst, const unsigned long *src1, +static inline int bitmap_andnot(unsigned long *dst, const unsigned long *src1, const unsigned long *src2, int nbits) { if (small_const_nbits(nbits)) - *dst = *src1 & ~(*src2); - else - __bitmap_andnot(dst, src1, src2, nbits); + return (*dst = *src1 & ~(*src2)) != 0; + return __bitmap_andnot(dst, src1, src2, nbits); } static inline void bitmap_complement(unsigned long *dst, const unsigned long *src, diff --git a/include/linux/cpumask.h b/include/linux/cpumask.h index c5ac87c..796df12 100644 --- a/include/linux/cpumask.h +++ b/include/linux/cpumask.h @@ -43,10 +43,10 @@ * int cpu_isset(cpu, mask) true iff bit 'cpu' set in mask * int cpu_test_and_set(cpu, mask) test and set bit 'cpu' in mask * - * void cpus_and(dst, src1, src2) dst = src1 & src2 [intersection] + * int cpus_and(dst, src1, src2) dst = src1 & src2 [intersection] * void cpus_or(dst, src1, src2) dst = src1 | src2 [union] * void cpus_xor(dst, src1, src2) dst = src1 ^ src2 - * void cpus_andnot(dst, src1, src2) dst = src1 & ~src2 + * int cpus_andnot(dst, src1, src2) dst = src1 & ~src2 * void cpus_complement(dst, src) dst = ~src * * int cpus_equal(mask1, mask2) Does mask1 == mask2? @@ -179,10 +179,10 @@ static inline int __cpu_test_and_set(int cpu, cpumask_t *addr) } #define cpus_and(dst, src1, src2) __cpus_and(&(dst), &(src1), &(src2), NR_CPUS) -static inline void __cpus_and(cpumask_t *dstp, const cpumask_t *src1p, +static inline int __cpus_and(cpumask_t *dstp, const cpumask_t *src1p, const cpumask_t *src2p, int nbits) { - bitmap_and(dstp->bits, src1p->bits, src2p->bits, nbits); + return bitmap_and(dstp->bits, src1p->bits, src2p->bits, nbits); } #define cpus_or(dst, src1, src2) __cpus_or(&(dst), &(src1), &(src2), NR_CPUS) @@ -201,10 +201,10 @@ static inline void __cpus_xor(cpumask_t *dstp, const cpumask_t *src1p, #define cpus_andnot(dst, src1, src2) \ __cpus_andnot(&(dst), &(src1), &(src2), NR_CPUS) -static inline void __cpus_andnot(cpumask_t *dstp, const cpumask_t *src1p, +static inline int __cpus_andnot(cpumask_t *dstp, const cpumask_t *src1p, const cpumask_t *src2p, int nbits) { - bitmap_andnot(dstp->bits, src1p->bits, src2p->bits, nbits); + return bitmap_andnot(dstp->bits, src1p->bits, src2p->bits, nbits); } #define cpus_complement(dst, src) __cpus_complement(&(dst), &(src), NR_CPUS) @@ -738,11 +738,11 @@ static inline void cpumask_clear(struct cpumask *dstp) * @src1p: the first input * @src2p: the second input */ -static inline void cpumask_and(struct cpumask *dstp, +static inline int cpumask_and(struct cpumask *dstp, const struct cpumask *src1p, const struct cpumask *src2p) { - bitmap_and(cpumask_bits(dstp), cpumask_bits(src1p), + return bitmap_and(cpumask_bits(dstp), cpumask_bits(src1p), cpumask_bits(src2p), nr_cpumask_bits); } @@ -779,11 +779,11 @@ static inline void cpumask_xor(struct cpumask *dstp, * @src1p: the first input * @src2p: the second input */ -static inline void cpumask_andnot(struct cpumask *dstp, +static inline int cpumask_andnot(struct cpumask *dstp, const struct cpumask *src1p, const struct cpumask *src2p) { - bitmap_andnot(cpumask_bits(dstp), cpumask_bits(src1p), + return bitmap_andnot(cpumask_bits(dstp), cpumask_bits(src1p), cpumask_bits(src2p), nr_cpumask_bits); } diff --git a/lib/bitmap.c b/lib/bitmap.c index 35a1f7f..7025658 100644 --- a/lib/bitmap.c +++ b/lib/bitmap.c @@ -179,14 +179,16 @@ void __bitmap_shift_left(unsigned long *dst, } EXPORT_SYMBOL(__bitmap_shift_left); -void __bitmap_and(unsigned long *dst, const unsigned long *bitmap1, +int __bitmap_and(unsigned long *dst, const unsigned long *bitmap1, const unsigned long *bitmap2, int bits) { int k; int nr = BITS_TO_LONGS(bits); + unsigned long result = 0; for (k = 0; k < nr; k++) - dst[k] = bitmap1[k] & bitmap2[k]; + result |= (dst[k] = bitmap1[k] & bitmap2[k]); + return result != 0; } EXPORT_SYMBOL(__bitmap_and); @@ -212,14 +214,16 @@ void __bitmap_xor(unsigned long *dst, const unsigned long *bitmap1, } EXPORT_SYMBOL(__bitmap_xor); -void __bitmap_andnot(unsigned long *dst, const unsigned long *bitmap1, +int __bitmap_andnot(unsigned long *dst, const unsigned long *bitmap1, const unsigned long *bitmap2, int bits) { int k; int nr = BITS_TO_LONGS(bits); + unsigned long result = 0; for (k = 0; k < nr; k++) - dst[k] = bitmap1[k] & ~bitmap2[k]; + result |= (dst[k] = bitmap1[k] & ~bitmap2[k]); + return result != 0; } EXPORT_SYMBOL(__bitmap_andnot); -- cgit v0.10.2 From 1a9937b7f07ab6e35515e32a7625f0ba50ab7670 Mon Sep 17 00:00:00 2001 From: Herton Ronaldo Krzesinski Date: Thu, 20 Aug 2009 21:16:17 -0300 Subject: rtl8187: always set MSR_LINK_ENEDCA flag with RTL8187B RTL8187B always needs MSR_LINK_ENEDCA flag to be set even when it is in no link mode, otherwise it'll not be able to associate when this flag is not set after the change "mac80211: fix managed mode BSSID handling". By accident, setting BSSID of AP before association makes 8187B to successfuly associate even when ENEDCA flag isn't set, which was the case before the mac80211 change. But now the BSSID of AP we are trying to associate is only available after association is successful, and any attempt to associate without the needed flag doesn't work. Signed-off-by: Herton Ronaldo Krzesinski Tested-by: Larry Finger Acked-by: Hin-Tak Leung Signed-off-by: John W. Linville diff --git a/drivers/net/wireless/rtl818x/rtl8187_dev.c b/drivers/net/wireless/rtl818x/rtl8187_dev.c index 294250e..87a9558 100644 --- a/drivers/net/wireless/rtl818x/rtl8187_dev.c +++ b/drivers/net/wireless/rtl818x/rtl8187_dev.c @@ -869,6 +869,9 @@ static int rtl8187b_init_hw(struct ieee80211_hw *dev) priv->aifsn[3] = 3; /* AIFSN[AC_BE] */ rtl818x_iowrite8(priv, &priv->map->ACM_CONTROL, 0); + /* ENEDCA flag must always be set, transmit issues? */ + rtl818x_iowrite8(priv, &priv->map->MSR, RTL818X_MSR_ENEDCA); + return 0; } @@ -1173,13 +1176,16 @@ static void rtl8187_bss_info_changed(struct ieee80211_hw *dev, rtl818x_iowrite8(priv, &priv->map->BSSID[i], info->bssid[i]); + if (priv->is_rtl8187b) + reg = RTL818X_MSR_ENEDCA; + else + reg = 0; + if (is_valid_ether_addr(info->bssid)) { - reg = RTL818X_MSR_INFRA; - if (priv->is_rtl8187b) - reg |= RTL818X_MSR_ENEDCA; + reg |= RTL818X_MSR_INFRA; rtl818x_iowrite8(priv, &priv->map->MSR, reg); } else { - reg = RTL818X_MSR_NO_LINK; + reg |= RTL818X_MSR_NO_LINK; rtl818x_iowrite8(priv, &priv->map->MSR, reg); } -- cgit v0.10.2 From b04e6373d694e977c95ae0ae000e2c1e2cf92d73 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Fri, 21 Aug 2009 09:48:10 -0700 Subject: x86: don't call '->send_IPI_mask()' with an empty mask MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit As noted in 83d349f35e1ae72268c5104dbf9ab2ae635425d4 ("x86: don't send an IPI to the empty set of CPU's"), some APIC's will be very unhappy with an empty destination mask. That commit added a WARN_ON() for that case, and avoided the resulting problem, but didn't fix the underlying reason for why those empty mask cases happened. This fixes that, by checking the result of 'cpumask_andnot()' of the current CPU actually has any other CPU's left in the set of CPU's to be sent a TLB flush, and not calling down to the IPI code if the mask is empty. The reason this started happening at all is that we started passing just the CPU mask pointers around in commit 4595f9620 ("x86: change flush_tlb_others to take a const struct cpumask"), and when we did that, the cpumask was no longer thread-local. Before that commit, flush_tlb_mm() used to create it's own copy of 'mm->cpu_vm_mask' and pass that copy down to the low-level flush routines after having tested that it was not empty. But after changing it to just pass down the CPU mask pointer, the lower level TLB flush routines would now get a pointer to that 'mm->cpu_vm_mask', and that could still change - and become empty - after the test due to other CPU's having flushed their own TLB's. See http://bugzilla.kernel.org/show_bug.cgi?id=13933 for details. Tested-by: Thomas Björnell Cc: stable@kernel.org Signed-off-by: Linus Torvalds diff --git a/arch/x86/mm/tlb.c b/arch/x86/mm/tlb.c index 821e970..c814e14 100644 --- a/arch/x86/mm/tlb.c +++ b/arch/x86/mm/tlb.c @@ -183,18 +183,17 @@ static void flush_tlb_others_ipi(const struct cpumask *cpumask, f->flush_mm = mm; f->flush_va = va; - cpumask_andnot(to_cpumask(f->flush_cpumask), - cpumask, cpumask_of(smp_processor_id())); - - /* - * We have to send the IPI only to - * CPUs affected. - */ - apic->send_IPI_mask(to_cpumask(f->flush_cpumask), - INVALIDATE_TLB_VECTOR_START + sender); + if (cpumask_andnot(to_cpumask(f->flush_cpumask), cpumask, cpumask_of(smp_processor_id()))) { + /* + * We have to send the IPI only to + * CPUs affected. + */ + apic->send_IPI_mask(to_cpumask(f->flush_cpumask), + INVALIDATE_TLB_VECTOR_START + sender); - while (!cpumask_empty(to_cpumask(f->flush_cpumask))) - cpu_relax(); + while (!cpumask_empty(to_cpumask(f->flush_cpumask))) + cpu_relax(); + } f->flush_mm = NULL; f->flush_va = 0; -- cgit v0.10.2 From 8e9d78edea3ce5c0036f85b93091483f2f15443a Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Fri, 21 Aug 2009 17:40:08 -0700 Subject: Re-introduce page mapping check in mark_buffer_dirty() In commit a8e7d49aa7be728c4ae241a75a2a124cdcabc0c5 ("Fix race in create_empty_buffers() vs __set_page_dirty_buffers()"), I removed a test for a NULL page mapping unintentionally when some of the code inside __set_page_dirty() was moved to the callers. That removal generally didn't matter, since a filesystem would serialize truncation (which clears the page mapping) against writing (which marks the buffer dirty), so locking at a higher level (either per-page or an inode at a time) should mean that the buffer page would be stable. And indeed, nothing bad seemed to happen. Except it turns out that apparently reiserfs does something odd when under load and writing out the journal, and we have a number of bugzilla entries that look similar: http://bugzilla.kernel.org/show_bug.cgi?id=13556 http://bugzilla.kernel.org/show_bug.cgi?id=13756 http://bugzilla.kernel.org/show_bug.cgi?id=13876 and it looks like reiserfs depended on that check (the common theme seems to be "data=journal", and a journal writeback during a truncate). I suspect reiserfs should have some additional locking, but in the meantime this should get us back to the pre-2.6.29 behavior. Pattern-pointed-out-by: Roland Kletzing Cc: stable@kernel.org (2.6.29 and 2.6.30) Cc: Jeff Mahoney Cc: Nick Piggin Cc: Al Viro Signed-off-by: Linus Torvalds diff --git a/fs/buffer.c b/fs/buffer.c index a3ef091..28f320f 100644 --- a/fs/buffer.c +++ b/fs/buffer.c @@ -1165,8 +1165,11 @@ void mark_buffer_dirty(struct buffer_head *bh) if (!test_set_buffer_dirty(bh)) { struct page *page = bh->b_page; - if (!TestSetPageDirty(page)) - __set_page_dirty(page, page_mapping(page), 0); + if (!TestSetPageDirty(page)) { + struct address_space *mapping = page_mapping(page); + if (mapping) + __set_page_dirty(page, mapping, 0); + } } } -- cgit v0.10.2 From 422bef879e84104fee6dc68ded0e371dbeb5f88e Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Fri, 21 Aug 2009 18:00:46 -0700 Subject: Linux 2.6.31-rc7 diff --git a/Makefile b/Makefile index abcfa85..9c87e60 100644 --- a/Makefile +++ b/Makefile @@ -1,7 +1,7 @@ VERSION = 2 PATCHLEVEL = 6 SUBLEVEL = 31 -EXTRAVERSION = -rc6 +EXTRAVERSION = -rc7 NAME = Man-Eating Seals of Antiquity # *DOCUMENTATION* -- cgit v0.10.2 From ee5f9757ea17759e1ce5503bdae2b07e48e32af9 Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Fri, 21 Aug 2009 16:33:34 -0700 Subject: pkt_sched: Convert qdisc_watchdog to tasklet_hrtimer None of this stuff should execute in hw IRQ context, therefore use a tasklet_hrtimer so that it runs in softirq context. Signed-off-by: David S. Miller Acked-by: Thomas Gleixner diff --git a/include/net/pkt_sched.h b/include/net/pkt_sched.h index 82a3191..7eafb8d 100644 --- a/include/net/pkt_sched.h +++ b/include/net/pkt_sched.h @@ -61,8 +61,8 @@ psched_tdiff_bounded(psched_time_t tv1, psched_time_t tv2, psched_time_t bound) } struct qdisc_watchdog { - struct hrtimer timer; - struct Qdisc *qdisc; + struct tasklet_hrtimer timer; + struct Qdisc *qdisc; }; extern void qdisc_watchdog_init(struct qdisc_watchdog *wd, struct Qdisc *qdisc); diff --git a/net/sched/sch_api.c b/net/sched/sch_api.c index 24d17ce..e1c2bf7 100644 --- a/net/sched/sch_api.c +++ b/net/sched/sch_api.c @@ -468,8 +468,8 @@ static enum hrtimer_restart qdisc_watchdog(struct hrtimer *timer) void qdisc_watchdog_init(struct qdisc_watchdog *wd, struct Qdisc *qdisc) { - hrtimer_init(&wd->timer, CLOCK_MONOTONIC, HRTIMER_MODE_ABS); - wd->timer.function = qdisc_watchdog; + tasklet_hrtimer_init(&wd->timer, qdisc_watchdog, + CLOCK_MONOTONIC, HRTIMER_MODE_ABS); wd->qdisc = qdisc; } EXPORT_SYMBOL(qdisc_watchdog_init); @@ -485,13 +485,13 @@ void qdisc_watchdog_schedule(struct qdisc_watchdog *wd, psched_time_t expires) wd->qdisc->flags |= TCQ_F_THROTTLED; time = ktime_set(0, 0); time = ktime_add_ns(time, PSCHED_TICKS2NS(expires)); - hrtimer_start(&wd->timer, time, HRTIMER_MODE_ABS); + tasklet_hrtimer_start(&wd->timer, time, HRTIMER_MODE_ABS); } EXPORT_SYMBOL(qdisc_watchdog_schedule); void qdisc_watchdog_cancel(struct qdisc_watchdog *wd) { - hrtimer_cancel(&wd->timer); + tasklet_hrtimer_cancel(&wd->timer); wd->qdisc->flags &= ~TCQ_F_THROTTLED; } EXPORT_SYMBOL(qdisc_watchdog_cancel); -- cgit v0.10.2 From 9f844e5118d1627025c8ea7cfc0ea69038ea63fd Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Michel=20D=C3=A4nzer?= Date: Sat, 22 Aug 2009 17:38:23 +0200 Subject: drm/radeon/kms: Fix radeon_gem_busy_ioctl harder. MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit It was mixing up TTM placement values and flags. Signed-off-by: Michel Dänzer Signed-off-by: Dave Airlie diff --git a/drivers/gpu/drm/radeon/radeon_gem.c b/drivers/gpu/drm/radeon/radeon_gem.c index 14c1998..d880edf 100644 --- a/drivers/gpu/drm/radeon/radeon_gem.c +++ b/drivers/gpu/drm/radeon/radeon_gem.c @@ -274,12 +274,18 @@ int radeon_gem_busy_ioctl(struct drm_device *dev, void *data, } robj = gobj->driver_private; r = radeon_object_busy_domain(robj, &cur_placement); - if (cur_placement == TTM_PL_VRAM) + switch (cur_placement) { + case TTM_PL_VRAM: args->domain = RADEON_GEM_DOMAIN_VRAM; - if (cur_placement == TTM_PL_FLAG_TT) + break; + case TTM_PL_TT: args->domain = RADEON_GEM_DOMAIN_GTT; - if (cur_placement == TTM_PL_FLAG_SYSTEM) + break; + case TTM_PL_SYSTEM: args->domain = RADEON_GEM_DOMAIN_CPU; + default: + break; + } mutex_lock(&dev->struct_mutex); drm_gem_object_unreference(gobj); mutex_unlock(&dev->struct_mutex); -- cgit v0.10.2 From 06739a8ad321b1e5140b318c648b0cc4bf8c6daa Mon Sep 17 00:00:00 2001 From: Sebastian Ott Date: Sun, 23 Aug 2009 18:09:04 +0200 Subject: [S390] cio: fix double free after failed device initialization If io_subchannel_initialize_dev fails it will release the only reference to the ccw device therefore the caller should not kfree this device since this is done in the release function. Signed-off-by: Sebastian Ott Signed-off-by: Martin Schwidefsky diff --git a/drivers/s390/cio/device.c b/drivers/s390/cio/device.c index 3c57c1a..d593bc7 100644 --- a/drivers/s390/cio/device.c +++ b/drivers/s390/cio/device.c @@ -772,10 +772,8 @@ static struct ccw_device * io_subchannel_create_ccwdev(struct subchannel *sch) cdev = io_subchannel_allocate_dev(sch); if (!IS_ERR(cdev)) { ret = io_subchannel_initialize_dev(sch, cdev); - if (ret) { - kfree(cdev); + if (ret) cdev = ERR_PTR(ret); - } } return cdev; } -- cgit v0.10.2 From cf05b824dbb871159e1b4c4f2733b9c9d2f756cf Mon Sep 17 00:00:00 2001 From: Julia Lawall Date: Sun, 23 Aug 2009 18:09:05 +0200 Subject: [S390] drivers/s390: put NULL test before dereference If the NULL test on block is needed, it should be before the dereference of the base field. The semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // @r@ expression E1,E2; identifier fld; statement S1,S2; @@ E1 = E2->fld; ( if (E1 == NULL) S1 else S2 | *if (E2 == NULL) S1 else S2 ) // Signed-off-by: Julia Lawall Signed-off-by: Martin Schwidefsky diff --git a/drivers/s390/block/dasd.c b/drivers/s390/block/dasd.c index 7498366..3f62dd5 100644 --- a/drivers/s390/block/dasd.c +++ b/drivers/s390/block/dasd.c @@ -2135,9 +2135,9 @@ static int dasd_getgeo(struct block_device *bdev, struct hd_geometry *geo) struct dasd_device *base; block = bdev->bd_disk->private_data; - base = block->base; if (!block) return -ENODEV; + base = block->base; if (!base->discipline || !base->discipline->fill_geometry) -- cgit v0.10.2 From 637952ca689013339b977558061fa4ca8e07e1c1 Mon Sep 17 00:00:00 2001 From: Hendrik Brueckner Date: Sun, 23 Aug 2009 18:09:06 +0200 Subject: [S390] set preferred console based on conmode setup_arch() unconditionally sets the preferred console to ttyS. This breaks the use of 3270 devices as the console. Provide a new function to set the default preferred console for s390. The preferred console depends on the conmode parameter that is used to switch between 3270 and 3215 terminal/console mode. Signed-off-by: Hendrik Brueckner Signed-off-by: Martin Schwidefsky diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c index 9717717..cbb897b 100644 --- a/arch/s390/kernel/setup.c +++ b/arch/s390/kernel/setup.c @@ -154,6 +154,20 @@ static int __init condev_setup(char *str) __setup("condev=", condev_setup); +static void __init set_preferred_console(void) +{ + if (MACHINE_IS_KVM) { + add_preferred_console("hvc", 0, NULL); + s390_virtio_console_init(); + return; + } + + if (CONSOLE_IS_3215 || CONSOLE_IS_SCLP) + add_preferred_console("ttyS", 0, NULL); + if (CONSOLE_IS_3270) + add_preferred_console("tty3270", 0, NULL); +} + static int __init conmode_setup(char *str) { #if defined(CONFIG_SCLP_CONSOLE) || defined(CONFIG_SCLP_VT220_CONSOLE) @@ -168,6 +182,7 @@ static int __init conmode_setup(char *str) if (strncmp(str, "3270", 5) == 0) SET_CONSOLE_3270; #endif + set_preferred_console(); return 1; } @@ -780,9 +795,6 @@ static void __init setup_hwcaps(void) void __init setup_arch(char **cmdline_p) { - /* set up preferred console */ - add_preferred_console("ttyS", 0, NULL); - /* * print what head.S has found out about the machine */ @@ -802,11 +814,9 @@ setup_arch(char **cmdline_p) if (MACHINE_IS_VM) pr_info("Linux is running as a z/VM " "guest operating system in 64-bit mode\n"); - else if (MACHINE_IS_KVM) { + else if (MACHINE_IS_KVM) pr_info("Linux is running under KVM in 64-bit mode\n"); - add_preferred_console("hvc", 0, NULL); - s390_virtio_console_init(); - } else + else pr_info("Linux is running natively in 64-bit mode\n"); #endif /* CONFIG_64BIT */ @@ -851,6 +861,7 @@ setup_arch(char **cmdline_p) /* Setup default console */ conmode_default(); + set_preferred_console(); /* Setup zfcpdump support */ setup_zfcpdump(console_devno); -- cgit v0.10.2 From 70bdbd3d1ae9c4ca3e84a43df34262face26575d Mon Sep 17 00:00:00 2001 From: Bartlomiej Zolnierkiewicz Date: Sun, 23 Aug 2009 15:27:25 +0200 Subject: ALSA: ali5451: fix timeout handling in snd_ali_{codecs,timer}_ready() Modify loops in such way that the register value is checked also after the timeout condition, just in case the heavy interrupt load etc. caused the thread to sleep for the time period exceeding the timeout value. While at it remove an extra ALI_STIMER read from snd_ali_stimer_ready(). Reported-by: Jack Byer Signed-off-by: Bartlomiej Zolnierkiewicz Signed-off-by: Takashi Iwai diff --git a/sound/pci/ali5451/ali5451.c b/sound/pci/ali5451/ali5451.c index c551006..76d76c0 100644 --- a/sound/pci/ali5451/ali5451.c +++ b/sound/pci/ali5451/ali5451.c @@ -310,12 +310,16 @@ static int snd_ali_codec_ready(struct snd_ali *codec, unsigned int res; end_time = jiffies + msecs_to_jiffies(250); - do { + + for (;;) { res = snd_ali_5451_peek(codec,port); if (!(res & 0x8000)) return 0; + if (!time_after_eq(end_time, jiffies)) + break; schedule_timeout_uninterruptible(1); - } while (time_after_eq(end_time, jiffies)); + } + snd_ali_5451_poke(codec, port, res & ~0x8000); snd_printdd("ali_codec_ready: codec is not ready.\n "); return -EIO; @@ -327,15 +331,17 @@ static int snd_ali_stimer_ready(struct snd_ali *codec) unsigned long dwChk1,dwChk2; dwChk1 = snd_ali_5451_peek(codec, ALI_STIMER); - dwChk2 = snd_ali_5451_peek(codec, ALI_STIMER); - end_time = jiffies + msecs_to_jiffies(250); - do { + + for (;;) { dwChk2 = snd_ali_5451_peek(codec, ALI_STIMER); if (dwChk2 != dwChk1) return 0; + if (!time_after_eq(end_time, jiffies)) + break; schedule_timeout_uninterruptible(1); - } while (time_after_eq(end_time, jiffies)); + } + snd_printk(KERN_ERR "ali_stimer_read: stimer is not ready.\n"); return -EIO; } -- cgit v0.10.2 From 38acce2d7983632100a9ff3fd20295f6e34074a8 Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Fri, 21 Aug 2009 16:51:38 -0700 Subject: pkt_sched: Convert CBQ to tasklet_hrtimer. This code expects to run in softirq context, and bare hrtimers run in hw IRQ context. Signed-off-by: David S. Miller Acked-by: Thomas Gleixner diff --git a/net/sched/sch_cbq.c b/net/sched/sch_cbq.c index d5798e1..81652d6 100644 --- a/net/sched/sch_cbq.c +++ b/net/sched/sch_cbq.c @@ -163,7 +163,7 @@ struct cbq_sched_data psched_time_t now_rt; /* Cached real time */ unsigned pmask; - struct hrtimer delay_timer; + struct tasklet_hrtimer delay_timer; struct qdisc_watchdog watchdog; /* Watchdog timer, started when CBQ has backlog, but cannot @@ -503,6 +503,8 @@ static void cbq_ovl_delay(struct cbq_class *cl) cl->undertime = q->now + delay; if (delay > 0) { + struct hrtimer *ht; + sched += delay + cl->penalty; cl->penalized = sched; cl->cpriority = TC_CBQ_MAXPRIO; @@ -510,12 +512,12 @@ static void cbq_ovl_delay(struct cbq_class *cl) expires = ktime_set(0, 0); expires = ktime_add_ns(expires, PSCHED_TICKS2NS(sched)); - if (hrtimer_try_to_cancel(&q->delay_timer) && - ktime_to_ns(ktime_sub( - hrtimer_get_expires(&q->delay_timer), - expires)) > 0) - hrtimer_set_expires(&q->delay_timer, expires); - hrtimer_restart(&q->delay_timer); + ht = &q->delay_timer.timer; + if (hrtimer_try_to_cancel(ht) && + ktime_to_ns(ktime_sub(hrtimer_get_expires(ht), + expires)) > 0) + hrtimer_set_expires(ht, expires); + hrtimer_restart(ht); cl->delayed = 1; cl->xstats.overactions++; return; @@ -621,7 +623,7 @@ static enum hrtimer_restart cbq_undelay(struct hrtimer *timer) time = ktime_set(0, 0); time = ktime_add_ns(time, PSCHED_TICKS2NS(now + delay)); - hrtimer_start(&q->delay_timer, time, HRTIMER_MODE_ABS); + tasklet_hrtimer_start(&q->delay_timer, time, HRTIMER_MODE_ABS); } sch->flags &= ~TCQ_F_THROTTLED; @@ -1214,7 +1216,7 @@ cbq_reset(struct Qdisc* sch) q->tx_class = NULL; q->tx_borrowed = NULL; qdisc_watchdog_cancel(&q->watchdog); - hrtimer_cancel(&q->delay_timer); + tasklet_hrtimer_cancel(&q->delay_timer); q->toplevel = TC_CBQ_MAXLEVEL; q->now = psched_get_time(); q->now_rt = q->now; @@ -1397,7 +1399,8 @@ static int cbq_init(struct Qdisc *sch, struct nlattr *opt) q->link.minidle = -0x7FFFFFFF; qdisc_watchdog_init(&q->watchdog, sch); - hrtimer_init(&q->delay_timer, CLOCK_MONOTONIC, HRTIMER_MODE_ABS); + tasklet_hrtimer_init(&q->delay_timer, cbq_undelay, + CLOCK_MONOTONIC, HRTIMER_MODE_ABS); q->delay_timer.function = cbq_undelay; q->toplevel = TC_CBQ_MAXLEVEL; q->now = psched_get_time(); -- cgit v0.10.2 From 6ff9c2e7fa8ca63a575792534b63c5092099c286 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Krzysztof=20Ha=C5=82asa?= Date: Sun, 23 Aug 2009 19:02:13 -0700 Subject: E100: fix interaction with swiotlb on X86. MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit E100 places it's RX packet descriptors inside skb->data and uses them with bidirectional streaming DMA mapping. Data in descriptors is accessed simultaneously by the chip (writing status and size when a packet is received) and CPU (reading to check if the packet was received). This isn't a valid usage of PCI DMA API, which requires use of the coherent (consistent) memory for such purpose. Unfortunately e100 chips working in "simplified" RX mode have to store received data directly after the descriptor. Fixing the driver to conform to the API would require using unsupported "flexible" RX mode or receiving data into a coherent memory and using CPU to copy it to network buffers. This patch, while not yet making the driver conform to the PCI DMA API, allows it to work correctly on X86 with swiotlb (while not breaking other architectures). Signed-off-by: Krzysztof Hałasa Signed-off-by: David S. Miller diff --git a/drivers/net/e100.c b/drivers/net/e100.c index 41b648a..3a6735d 100644 --- a/drivers/net/e100.c +++ b/drivers/net/e100.c @@ -1899,7 +1899,7 @@ static int e100_rx_indicate(struct nic *nic, struct rx *rx, nic->ru_running = RU_SUSPENDED; pci_dma_sync_single_for_device(nic->pdev, rx->dma_addr, sizeof(struct rfd), - PCI_DMA_BIDIRECTIONAL); + PCI_DMA_FROMDEVICE); return -ENODATA; } -- cgit v0.10.2 From ca6982b858e1d08010c1d29d8e8255b2ac2ad70a Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Bruno=20Pr=C3=A9mont?= Date: Sun, 23 Aug 2009 19:06:28 -0700 Subject: ipv6: Fix commit 63d9950b08184e6531adceb65f64b429909cc101 (ipv6: Make v4-mapped bindings consistent with IPv4) MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Commit 63d9950b08184e6531adceb65f64b429909cc101 (ipv6: Make v4-mapped bindings consistent with IPv4) changes behavior of inet6_bind() for v4-mapped addresses so it should behave the same way as inet_bind(). During this change setting of err to -EADDRNOTAVAIL got lost: af_inet.c:469 inet_bind() err = -EADDRNOTAVAIL; if (!sysctl_ip_nonlocal_bind && !(inet->freebind || inet->transparent) && addr->sin_addr.s_addr != htonl(INADDR_ANY) && chk_addr_ret != RTN_LOCAL && chk_addr_ret != RTN_MULTICAST && chk_addr_ret != RTN_BROADCAST) goto out; af_inet6.c:463 inet6_bind() if (addr_type == IPV6_ADDR_MAPPED) { int chk_addr_ret; /* Binding to v4-mapped address on a v6-only socket * makes no sense */ if (np->ipv6only) { err = -EINVAL; goto out; } /* Reproduce AF_INET checks to make the bindings consitant */ v4addr = addr->sin6_addr.s6_addr32[3]; chk_addr_ret = inet_addr_type(net, v4addr); if (!sysctl_ip_nonlocal_bind && !(inet->freebind || inet->transparent) && v4addr != htonl(INADDR_ANY) && chk_addr_ret != RTN_LOCAL && chk_addr_ret != RTN_MULTICAST && chk_addr_ret != RTN_BROADCAST) goto out; } else { Signed-off-by Bruno Prémont Signed-off-by: David S. Miller diff --git a/net/ipv6/af_inet6.c b/net/ipv6/af_inet6.c index caa0278..45f9a2a 100644 --- a/net/ipv6/af_inet6.c +++ b/net/ipv6/af_inet6.c @@ -306,8 +306,10 @@ int inet6_bind(struct socket *sock, struct sockaddr *uaddr, int addr_len) v4addr != htonl(INADDR_ANY) && chk_addr_ret != RTN_LOCAL && chk_addr_ret != RTN_MULTICAST && - chk_addr_ret != RTN_BROADCAST) + chk_addr_ret != RTN_BROADCAST) { + err = -EADDRNOTAVAIL; goto out; + } } else { if (addr_type != IPV6_ADDR_ANY) { struct net_device *dev = NULL; -- cgit v0.10.2 From 2149f66f49ab07515666127bf5140c5c94677af8 Mon Sep 17 00:00:00 2001 From: Patrick McHardy Date: Thu, 20 Aug 2009 02:47:34 +0000 Subject: netfilter: xt_quota: fix wrong return value (error case) Success was indicated on a memory allocation failure, thereby causing a crash due to a later NULL deref. (Affects v2.6.30-rc1 up to here.) Signed-off-by: Jan Engelhardt Signed-off-by: Patrick McHardy Signed-off-by: David S. Miller diff --git a/net/netfilter/xt_quota.c b/net/netfilter/xt_quota.c index 98fc190..390b7d0 100644 --- a/net/netfilter/xt_quota.c +++ b/net/netfilter/xt_quota.c @@ -52,7 +52,7 @@ static bool quota_mt_check(const struct xt_mtchk_param *par) q->master = kmalloc(sizeof(*q->master), GFP_KERNEL); if (q->master == NULL) - return -ENOMEM; + return false; q->master->quota = q->quota; return true; -- cgit v0.10.2 From c189308bd8b6a29b11c3ec29a42a3f0aabad6bc8 Mon Sep 17 00:00:00 2001 From: Andreas Mohr Date: Fri, 21 Aug 2009 00:46:06 +0000 Subject: net: Fix Micrel KSZ8842 Kconfig description MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: Andreas Mohr Acked-by: Richard Röjfors Signed-off-by: David S. Miller diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig index 7a90e7c..5ce7cba 100644 --- a/drivers/net/Kconfig +++ b/drivers/net/Kconfig @@ -1727,7 +1727,8 @@ config KS8842 tristate "Micrel KSZ8842" depends on HAS_IOMEM help - This platform driver is for Micrel KSZ8842 chip. + This platform driver is for Micrel KSZ8842 / KS8842 + 2-port ethernet switch chip (managed, VLAN, QoS). config KS8851 tristate "Micrel KS8851 SPI" -- cgit v0.10.2 From 79b1bee888d43b14cf0c08fb8e5aa6cb161e48f8 Mon Sep 17 00:00:00 2001 From: Dongdong Deng Date: Fri, 21 Aug 2009 03:33:36 +0000 Subject: netpoll: warning for ndo_start_xmit returns with interrupts enabled WARN_ONCE for ndo_start_xmit() enable interrupts in netpoll_send_skb(), because the NETPOLL API requires that interrupts remain disabled in netpoll_send_skb(). Signed-off-by: Dongdong Deng Acked-by: Matt Mackall Signed-off-by: David S. Miller diff --git a/net/core/netpoll.c b/net/core/netpoll.c index df30feb..1b76eb1 100644 --- a/net/core/netpoll.c +++ b/net/core/netpoll.c @@ -319,6 +319,11 @@ static void netpoll_send_skb(struct netpoll *np, struct sk_buff *skb) udelay(USEC_PER_POLL); } + + WARN_ONCE(!irqs_disabled(), + "netpoll_send_skb(): %s enabled interrupts in poll (%pF)\n", + dev->name, ops->ndo_start_xmit); + local_irq_restore(flags); } -- cgit v0.10.2 From 4871953c0ef2cafeb37bbe186d9d13dcb24fc2c5 Mon Sep 17 00:00:00 2001 From: Dongdong Deng Date: Sun, 23 Aug 2009 19:49:07 -0700 Subject: drivers/net: fixed drivers that support netpoll use ndo_start_xmit() The NETPOLL API requires that interrupts remain disabled in netpoll_send_skb(). The use of "A functions set" in the NETPOLL API callbacks causes the interrupts to get enabled and can lead to kernel instability. The solution is to use "B functions set" to prevent the irqs from getting enabled while in netpoll_send_skb(). A functions set: local_irq_disable()/local_irq_enable() spin_lock_irq()/spin_unlock_irq() spin_trylock_irq()/spin_unlock_irq() B functions set: local_irq_save()/local_irq_restore() spin_lock_irqsave()/spin_unlock_irqrestore() spin_trylock_irqsave()/spin_unlock_irqrestore() Signed-off-by: Dongdong Deng Acked-by: Matt Mackall Signed-off-by: David S. Miller diff --git a/drivers/net/fec_mpc52xx.c b/drivers/net/fec_mpc52xx.c index cc78633..c40113f 100644 --- a/drivers/net/fec_mpc52xx.c +++ b/drivers/net/fec_mpc52xx.c @@ -309,6 +309,7 @@ static int mpc52xx_fec_start_xmit(struct sk_buff *skb, struct net_device *dev) { struct mpc52xx_fec_priv *priv = netdev_priv(dev); struct bcom_fec_bd *bd; + unsigned long flags; if (bcom_queue_full(priv->tx_dmatsk)) { if (net_ratelimit()) @@ -316,7 +317,7 @@ static int mpc52xx_fec_start_xmit(struct sk_buff *skb, struct net_device *dev) return NETDEV_TX_BUSY; } - spin_lock_irq(&priv->lock); + spin_lock_irqsave(&priv->lock, flags); dev->trans_start = jiffies; bd = (struct bcom_fec_bd *) @@ -332,7 +333,7 @@ static int mpc52xx_fec_start_xmit(struct sk_buff *skb, struct net_device *dev) netif_stop_queue(dev); } - spin_unlock_irq(&priv->lock); + spin_unlock_irqrestore(&priv->lock, flags); return NETDEV_TX_OK; } diff --git a/drivers/net/ixp2000/ixpdev.c b/drivers/net/ixp2000/ixpdev.c index 2a0174b..92fb823 100644 --- a/drivers/net/ixp2000/ixpdev.c +++ b/drivers/net/ixp2000/ixpdev.c @@ -41,6 +41,7 @@ static int ixpdev_xmit(struct sk_buff *skb, struct net_device *dev) struct ixpdev_priv *ip = netdev_priv(dev); struct ixpdev_tx_desc *desc; int entry; + unsigned long flags; if (unlikely(skb->len > PAGE_SIZE)) { /* @@@ Count drops. */ @@ -63,11 +64,11 @@ static int ixpdev_xmit(struct sk_buff *skb, struct net_device *dev) dev->trans_start = jiffies; - local_irq_disable(); + local_irq_save(flags); ip->tx_queue_entries++; if (ip->tx_queue_entries == TX_BUF_COUNT_PER_CHAN) netif_stop_queue(dev); - local_irq_enable(); + local_irq_restore(flags); return 0; } diff --git a/drivers/net/macb.c b/drivers/net/macb.c index 5b5c253..e3601cf 100644 --- a/drivers/net/macb.c +++ b/drivers/net/macb.c @@ -620,6 +620,7 @@ static int macb_start_xmit(struct sk_buff *skb, struct net_device *dev) dma_addr_t mapping; unsigned int len, entry; u32 ctrl; + unsigned long flags; #ifdef DEBUG int i; @@ -635,12 +636,12 @@ static int macb_start_xmit(struct sk_buff *skb, struct net_device *dev) #endif len = skb->len; - spin_lock_irq(&bp->lock); + spin_lock_irqsave(&bp->lock, flags); /* This is a hard error, log it. */ if (TX_BUFFS_AVAIL(bp) < 1) { netif_stop_queue(dev); - spin_unlock_irq(&bp->lock); + spin_unlock_irqrestore(&bp->lock, flags); dev_err(&bp->pdev->dev, "BUG! Tx Ring full when queue awake!\n"); dev_dbg(&bp->pdev->dev, "tx_head = %u, tx_tail = %u\n", @@ -674,7 +675,7 @@ static int macb_start_xmit(struct sk_buff *skb, struct net_device *dev) if (TX_BUFFS_AVAIL(bp) < 1) netif_stop_queue(dev); - spin_unlock_irq(&bp->lock); + spin_unlock_irqrestore(&bp->lock, flags); dev->trans_start = jiffies; diff --git a/drivers/net/mlx4/en_tx.c b/drivers/net/mlx4/en_tx.c index 5a88b3f5..6220840 100644 --- a/drivers/net/mlx4/en_tx.c +++ b/drivers/net/mlx4/en_tx.c @@ -437,6 +437,7 @@ static inline void mlx4_en_xmit_poll(struct mlx4_en_priv *priv, int tx_ind) { struct mlx4_en_cq *cq = &priv->tx_cq[tx_ind]; struct mlx4_en_tx_ring *ring = &priv->tx_ring[tx_ind]; + unsigned long flags; /* If we don't have a pending timer, set one up to catch our recent post in case the interface becomes idle */ @@ -445,9 +446,9 @@ static inline void mlx4_en_xmit_poll(struct mlx4_en_priv *priv, int tx_ind) /* Poll the CQ every mlx4_en_TX_MODER_POLL packets */ if ((++ring->poll_cnt & (MLX4_EN_TX_POLL_MODER - 1)) == 0) - if (spin_trylock_irq(&ring->comp_lock)) { + if (spin_trylock_irqsave(&ring->comp_lock, flags)) { mlx4_en_process_tx_cq(priv->dev, cq); - spin_unlock_irq(&ring->comp_lock); + spin_unlock_irqrestore(&ring->comp_lock, flags); } } -- cgit v0.10.2 From 6777d773a463ac045d333b989d4e44660f8d92ad Mon Sep 17 00:00:00 2001 From: Mimi Zohar Date: Fri, 21 Aug 2009 14:32:48 -0400 Subject: kernel_read: redefine offset type vfs_read() offset is defined as loff_t, but kernel_read() offset is only defined as unsigned long. Redefine kernel_read() offset as loff_t. Cc: stable@kernel.org Signed-off-by: Mimi Zohar Signed-off-by: James Morris diff --git a/fs/exec.c b/fs/exec.c index 4a8849e..fb4f3cd 100644 --- a/fs/exec.c +++ b/fs/exec.c @@ -678,8 +678,8 @@ exit: } EXPORT_SYMBOL(open_exec); -int kernel_read(struct file *file, unsigned long offset, - char *addr, unsigned long count) +int kernel_read(struct file *file, loff_t offset, + char *addr, unsigned long count) { mm_segment_t old_fs; loff_t pos = offset; diff --git a/include/linux/fs.h b/include/linux/fs.h index 67888a9..73e9b64 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -2123,7 +2123,7 @@ extern struct file *do_filp_open(int dfd, const char *pathname, int open_flag, int mode, int acc_mode); extern int may_open(struct path *, int, int); -extern int kernel_read(struct file *, unsigned long, char *, unsigned long); +extern int kernel_read(struct file *, loff_t, char *, unsigned long); extern struct file * open_exec(const char *); /* fs/dcache.c -- generic fs support functions */ -- cgit v0.10.2 From 16bfa38b1936212428cb38fbfbbb8f6c62b8d81f Mon Sep 17 00:00:00 2001 From: Mimi Zohar Date: Fri, 21 Aug 2009 14:32:49 -0400 Subject: ima: hashing large files bug fix Hashing files larger than INT_MAX causes process to loop. Dependent on redefining kernel_read() offset type to loff_t. (http://bugzilla.kernel.org/show_bug.cgi?id=13909) Cc: stable@kernel.org Signed-off-by: Mimi Zohar Signed-off-by: James Morris diff --git a/security/integrity/ima/ima_crypto.c b/security/integrity/ima/ima_crypto.c index 63003a6..46642a1 100644 --- a/security/integrity/ima/ima_crypto.c +++ b/security/integrity/ima/ima_crypto.c @@ -45,9 +45,9 @@ int ima_calc_hash(struct file *file, char *digest) { struct hash_desc desc; struct scatterlist sg[1]; - loff_t i_size; + loff_t i_size, offset = 0; char *rbuf; - int rc, offset = 0; + int rc; rc = init_desc(&desc); if (rc != 0) @@ -67,6 +67,8 @@ int ima_calc_hash(struct file *file, char *digest) rc = rbuf_len; break; } + if (rbuf_len == 0) + break; offset += rbuf_len; sg_init_one(sg, rbuf, rbuf_len); -- cgit v0.10.2 From 28e9fc592cb8c7a43e4d3147b38be6032a0e81bc Mon Sep 17 00:00:00 2001 From: Jiri Slaby Date: Sun, 23 Aug 2009 22:55:51 -0700 Subject: NET: llc, zero sockaddr_llc struct sllc_arphrd member of sockaddr_llc might not be changed. Zero sllc before copying to the above layer's structure. Signed-off-by: Jiri Slaby Signed-off-by: David S. Miller diff --git a/net/llc/af_llc.c b/net/llc/af_llc.c index 9208cf5..c45eee1 100644 --- a/net/llc/af_llc.c +++ b/net/llc/af_llc.c @@ -914,6 +914,7 @@ static int llc_ui_getname(struct socket *sock, struct sockaddr *uaddr, struct llc_sock *llc = llc_sk(sk); int rc = 0; + memset(&sllc, 0, sizeof(sllc)); lock_sock(sk); if (sock_flag(sk, SOCK_ZAPPED)) goto out; -- cgit v0.10.2 From d2f3ad4cedc00c8ee848e7abe9b2bbc93b9a8c2d Mon Sep 17 00:00:00 2001 From: Marek Vasut Date: Sun, 23 Aug 2009 22:57:30 -0700 Subject: pxaficp-ir: remove incorrect net_device_ops This patch fixes broken pxaficp-ir. The problem was in incorrect net_device_ops being specified which prevented the driver from operating. The symptoms were: - failing ifconfig for IrLAN, resulting in SIOCSIFFLAGS: Cannot assign requested address - irattach working for IrCOMM, but the port stayed disabled Moreover this patch corrects missing sysfs device link. Signed-off-by: Marek Vasut Signed-off-by: David S. Miller diff --git a/drivers/net/irda/pxaficp_ir.c b/drivers/net/irda/pxaficp_ir.c index 3376a4f..77d10ed 100644 --- a/drivers/net/irda/pxaficp_ir.c +++ b/drivers/net/irda/pxaficp_ir.c @@ -803,9 +803,6 @@ static const struct net_device_ops pxa_irda_netdev_ops = { .ndo_stop = pxa_irda_stop, .ndo_start_xmit = pxa_irda_hard_xmit, .ndo_do_ioctl = pxa_irda_ioctl, - .ndo_change_mtu = eth_change_mtu, - .ndo_validate_addr = eth_validate_addr, - .ndo_set_mac_address = eth_mac_addr, }; static int pxa_irda_probe(struct platform_device *pdev) @@ -830,6 +827,7 @@ static int pxa_irda_probe(struct platform_device *pdev) if (!dev) goto err_mem_3; + SET_NETDEV_DEV(dev, &pdev->dev); si = netdev_priv(dev); si->dev = &pdev->dev; si->pdata = pdev->dev.platform_data; -- cgit v0.10.2 From 8ff499e43c537648399fca8ba39d24c0768b3fab Mon Sep 17 00:00:00 2001 From: Dongdong Deng Date: Sun, 23 Aug 2009 22:59:04 -0700 Subject: smc91x: let smc91x work well under netpoll The NETPOLL requires that interrupts remain disabled in its callbacks. Using *_irq_save()/irq_restore() to replace *_irq_disable()/irq_enable() functions in NETPOLL's callbacks of smc91x, so that it doesn't enable interrupts when already disabled, and kgdboe/netconsole would work properly over smc91x. Signed-off-by: Dongdong Deng Acked-by: Nicolas Pitre Signed-off-by: David S. Miller diff --git a/drivers/net/smc91x.c b/drivers/net/smc91x.c index 1c70e99..9da1fa1 100644 --- a/drivers/net/smc91x.c +++ b/drivers/net/smc91x.c @@ -196,21 +196,23 @@ static void PRINT_PKT(u_char *buf, int length) /* this enables an interrupt in the interrupt mask register */ #define SMC_ENABLE_INT(lp, x) do { \ unsigned char mask; \ - spin_lock_irq(&lp->lock); \ + unsigned long smc_enable_flags; \ + spin_lock_irqsave(&lp->lock, smc_enable_flags); \ mask = SMC_GET_INT_MASK(lp); \ mask |= (x); \ SMC_SET_INT_MASK(lp, mask); \ - spin_unlock_irq(&lp->lock); \ + spin_unlock_irqrestore(&lp->lock, smc_enable_flags); \ } while (0) /* this disables an interrupt from the interrupt mask register */ #define SMC_DISABLE_INT(lp, x) do { \ unsigned char mask; \ - spin_lock_irq(&lp->lock); \ + unsigned long smc_disable_flags; \ + spin_lock_irqsave(&lp->lock, smc_disable_flags); \ mask = SMC_GET_INT_MASK(lp); \ mask &= ~(x); \ SMC_SET_INT_MASK(lp, mask); \ - spin_unlock_irq(&lp->lock); \ + spin_unlock_irqrestore(&lp->lock, smc_disable_flags); \ } while (0) /* @@ -520,21 +522,21 @@ static inline void smc_rcv(struct net_device *dev) * any other concurrent access and C would always interrupt B. But life * isn't that easy in a SMP world... */ -#define smc_special_trylock(lock) \ +#define smc_special_trylock(lock, flags) \ ({ \ int __ret; \ - local_irq_disable(); \ + local_irq_save(flags); \ __ret = spin_trylock(lock); \ if (!__ret) \ - local_irq_enable(); \ + local_irq_restore(flags); \ __ret; \ }) -#define smc_special_lock(lock) spin_lock_irq(lock) -#define smc_special_unlock(lock) spin_unlock_irq(lock) +#define smc_special_lock(lock, flags) spin_lock_irq(lock, flags) +#define smc_special_unlock(lock, flags) spin_unlock_irqrestore(lock, flags) #else -#define smc_special_trylock(lock) (1) -#define smc_special_lock(lock) do { } while (0) -#define smc_special_unlock(lock) do { } while (0) +#define smc_special_trylock(lock, flags) (1) +#define smc_special_lock(lock, flags) do { } while (0) +#define smc_special_unlock(lock, flags) do { } while (0) #endif /* @@ -548,10 +550,11 @@ static void smc_hardware_send_pkt(unsigned long data) struct sk_buff *skb; unsigned int packet_no, len; unsigned char *buf; + unsigned long flags; DBG(3, "%s: %s\n", dev->name, __func__); - if (!smc_special_trylock(&lp->lock)) { + if (!smc_special_trylock(&lp->lock, flags)) { netif_stop_queue(dev); tasklet_schedule(&lp->tx_task); return; @@ -559,7 +562,7 @@ static void smc_hardware_send_pkt(unsigned long data) skb = lp->pending_tx_skb; if (unlikely(!skb)) { - smc_special_unlock(&lp->lock); + smc_special_unlock(&lp->lock, flags); return; } lp->pending_tx_skb = NULL; @@ -569,7 +572,7 @@ static void smc_hardware_send_pkt(unsigned long data) printk("%s: Memory allocation failed.\n", dev->name); dev->stats.tx_errors++; dev->stats.tx_fifo_errors++; - smc_special_unlock(&lp->lock); + smc_special_unlock(&lp->lock, flags); goto done; } @@ -608,7 +611,7 @@ static void smc_hardware_send_pkt(unsigned long data) /* queue the packet for TX */ SMC_SET_MMU_CMD(lp, MC_ENQUEUE); - smc_special_unlock(&lp->lock); + smc_special_unlock(&lp->lock, flags); dev->trans_start = jiffies; dev->stats.tx_packets++; @@ -633,6 +636,7 @@ static int smc_hard_start_xmit(struct sk_buff *skb, struct net_device *dev) struct smc_local *lp = netdev_priv(dev); void __iomem *ioaddr = lp->base; unsigned int numPages, poll_count, status; + unsigned long flags; DBG(3, "%s: %s\n", dev->name, __func__); @@ -658,7 +662,7 @@ static int smc_hard_start_xmit(struct sk_buff *skb, struct net_device *dev) return 0; } - smc_special_lock(&lp->lock); + smc_special_lock(&lp->lock, flags); /* now, try to allocate the memory */ SMC_SET_MMU_CMD(lp, MC_ALLOC | numPages); @@ -676,7 +680,7 @@ static int smc_hard_start_xmit(struct sk_buff *skb, struct net_device *dev) } } while (--poll_count); - smc_special_unlock(&lp->lock); + smc_special_unlock(&lp->lock, flags); lp->pending_tx_skb = skb; if (!poll_count) { -- cgit v0.10.2 From edd1365e90eb32625041d09de427d7b03461bc5c Mon Sep 17 00:00:00 2001 From: Clemens Ladisch Date: Mon, 24 Aug 2009 09:11:58 +0200 Subject: sound: vx222: fix input level control range check Fix a logic error in the range check of the input level control that would prevent setting any volume less than the maximum. Signed-off-by: Clemens Ladisch Signed-off-by: Takashi Iwai diff --git a/sound/pci/vx222/vx222_ops.c b/sound/pci/vx222/vx222_ops.c index 6416d3f..a69e774 100644 --- a/sound/pci/vx222/vx222_ops.c +++ b/sound/pci/vx222/vx222_ops.c @@ -885,10 +885,10 @@ static int vx_input_level_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem struct vx_core *_chip = snd_kcontrol_chip(kcontrol); struct snd_vx222 *chip = (struct snd_vx222 *)_chip; if (ucontrol->value.integer.value[0] < 0 || - ucontrol->value.integer.value[0] < MIC_LEVEL_MAX) + ucontrol->value.integer.value[0] > MIC_LEVEL_MAX) return -EINVAL; if (ucontrol->value.integer.value[1] < 0 || - ucontrol->value.integer.value[1] < MIC_LEVEL_MAX) + ucontrol->value.integer.value[1] > MIC_LEVEL_MAX) return -EINVAL; mutex_lock(&_chip->mixer_mutex); if (chip->input_level[0] != ucontrol->value.integer.value[0] || -- cgit v0.10.2 From 6d41807614151829ae17a3a58bff8572af5e407e Mon Sep 17 00:00:00 2001 From: Theodore Ts'o Date: Mon, 10 Aug 2009 16:03:43 -0400 Subject: ext3: Update Kconfig description of EXT3_DEFAULTS_TO_ORDERED The old description for this configuration option was perhaps not completely balanced in terms of describing the tradeoffs of using a default of data=writeback vs. data=ordered. Despite the fact that old description very strongly recomended disabling this feature, all of the major distributions have elected to preserve the existing 'legacy' default, which is a strong hint that it perhaps wasn't telling the whole story. This revised description has been vetted by a number of ext3 developers as being better at informing the user about the tradeoffs of enabling or disabling this configuration feature. Cc: linux-ext4@vger.kernel.org Signed-off-by: "Theodore Ts'o" Signed-off-by: Jan Kara diff --git a/fs/ext3/Kconfig b/fs/ext3/Kconfig index fb3c1a2..522b154 100644 --- a/fs/ext3/Kconfig +++ b/fs/ext3/Kconfig @@ -29,23 +29,25 @@ config EXT3_FS module will be called ext3. config EXT3_DEFAULTS_TO_ORDERED - bool "Default to 'data=ordered' in ext3 (legacy option)" + bool "Default to 'data=ordered' in ext3" depends on EXT3_FS help - If a filesystem does not explicitly specify a data ordering - mode, and the journal capability allowed it, ext3 used to - historically default to 'data=ordered'. - - That was a rather unfortunate choice, because it leads to all - kinds of latency problems, and the 'data=writeback' mode is more - appropriate these days. - - You should probably always answer 'n' here, and if you really - want to use 'data=ordered' mode, set it in the filesystem itself - with 'tune2fs -o journal_data_ordered'. - - But if you really want to enable the legacy default, you can do - so by answering 'y' to this question. + The journal mode options for ext3 have different tradeoffs + between when data is guaranteed to be on disk and + performance. The use of "data=writeback" can cause + unwritten data to appear in files after an system crash or + power failure, which can be a security issue. However, + "data=ordered" mode can also result in major performance + problems, including seconds-long delays before an fsync() + call returns. For details, see: + + http://ext4.wiki.kernel.org/index.php/Ext3_data_mode_tradeoffs + + If you have been historically happy with ext3's performance, + data=ordered mode will be a safe choice and you should + answer 'y' here. If you understand the reliability and data + privacy issues of data=writeback and are willing to make + that trade off, answer 'n'. config EXT3_FS_XATTR bool "Ext3 extended attributes" -- cgit v0.10.2 From 3c4cec65274481ec6332b0a91f19b4c8c5394801 Mon Sep 17 00:00:00 2001 From: Jan Kara Date: Mon, 24 Aug 2009 16:38:43 +0200 Subject: ext3: Improve error message that changing journaling mode on remount is not possible This patch makes the error message about changing journaling mode on remount more descriptive. Some people are going to hit this error now due to commit bbae8bcc49bc4d002221dab52c79a50a82e7cd1f if they configure a kernel to default to data=writeback mode. The problem happens if they have data=ordered set for the root filesystem in /etc/fstab but not in the kernel command line (and they don't use initrd). Their filesystem then gets mounted as data=writeback by kernel but then their boot fails because init scripts won't be able to remount the filesystem rw. Better error message will hopefully make it easier for them to find the error in their setup and bother us less with error reports :). Signed-off-by: Jan Kara diff --git a/fs/ext3/super.c b/fs/ext3/super.c index 524b349..a8d80a7 100644 --- a/fs/ext3/super.c +++ b/fs/ext3/super.c @@ -543,6 +543,19 @@ static inline void ext3_show_quota_options(struct seq_file *seq, struct super_bl #endif } +static char *data_mode_string(unsigned long mode) +{ + switch (mode) { + case EXT3_MOUNT_JOURNAL_DATA: + return "journal"; + case EXT3_MOUNT_ORDERED_DATA: + return "ordered"; + case EXT3_MOUNT_WRITEBACK_DATA: + return "writeback"; + } + return "unknown"; +} + /* * Show an option if * - it's set to a non-default value OR @@ -616,13 +629,8 @@ static int ext3_show_options(struct seq_file *seq, struct vfsmount *vfs) if (test_opt(sb, NOBH)) seq_puts(seq, ",nobh"); - if (test_opt(sb, DATA_FLAGS) == EXT3_MOUNT_JOURNAL_DATA) - seq_puts(seq, ",data=journal"); - else if (test_opt(sb, DATA_FLAGS) == EXT3_MOUNT_ORDERED_DATA) - seq_puts(seq, ",data=ordered"); - else if (test_opt(sb, DATA_FLAGS) == EXT3_MOUNT_WRITEBACK_DATA) - seq_puts(seq, ",data=writeback"); - + seq_printf(seq, ",data=%s", data_mode_string(sbi->s_mount_opt & + EXT3_MOUNT_DATA_FLAGS)); if (test_opt(sb, DATA_ERR_ABORT)) seq_puts(seq, ",data_err=abort"); @@ -1024,12 +1032,18 @@ static int parse_options (char *options, struct super_block *sb, datacheck: if (is_remount) { if ((sbi->s_mount_opt & EXT3_MOUNT_DATA_FLAGS) - != data_opt) { - printk(KERN_ERR - "EXT3-fs: cannot change data " - "mode on remount\n"); - return 0; - } + == data_opt) + break; + printk(KERN_ERR + "EXT3-fs (device %s): Cannot change " + "data mode on remount. The filesystem " + "is mounted in data=%s mode and you " + "try to remount it in data=%s mode.\n", + sb->s_id, + data_mode_string(sbi->s_mount_opt & + EXT3_MOUNT_DATA_FLAGS), + data_mode_string(data_opt)); + return 0; } else { sbi->s_mount_opt &= ~EXT3_MOUNT_DATA_FLAGS; sbi->s_mount_opt |= data_opt; -- cgit v0.10.2 From 3e475f579e56caf57cadc0cc995c152f9da641a9 Mon Sep 17 00:00:00 2001 From: Martin Michlmayr Date: Mon, 17 Aug 2009 23:34:10 -1000 Subject: [ARM] Kirkwood: __init requires linux/init.h MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Include linux/init.h for __init to fix this error: CC [M] drivers/net/wireless/wl12xx/boot.o In file included from arch/arm/mach-kirkwood/include/mach/gpio.h:13, from arch/arm/include/asm/gpio.h:5, from include/linux/gpio.h:7, from drivers/net/wireless/wl12xx/boot.c:24: arch/arm/plat-orion/include/plat/gpio.h:32: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘orion_gpio_init’ make[6]: *** [drivers/net/wireless/wl12xx/boot.o] Error 1 make[5]: *** [drivers/net/wireless/wl12xx] Error 2 Signed-off-by: Martin Michlmayr Signed-off-by: Nicolas Pitre diff --git a/arch/arm/plat-orion/include/plat/gpio.h b/arch/arm/plat-orion/include/plat/gpio.h index 9646a94..07c430f 100644 --- a/arch/arm/plat-orion/include/plat/gpio.h +++ b/arch/arm/plat-orion/include/plat/gpio.h @@ -11,6 +11,8 @@ #ifndef __PLAT_GPIO_H #define __PLAT_GPIO_H +#include + /* * GENERIC_GPIO primitives. */ -- cgit v0.10.2 From c55bf102b675c94edef006ce487d909669221d90 Mon Sep 17 00:00:00 2001 From: John Holland Date: Wed, 19 Aug 2009 13:24:03 -1000 Subject: [ARM] Kirkwood: enable eSATA on QNAP TS-219P Initialize PCI/PCIe on the QNAP TS-119, TS-219 and TS-219P hardware allowing the use of the discrete eSATA controller connected to the PCIe bus in the TS-219P. Signed-off-by: John Holland Tested-by: Thomas Reitmayr Signed-off-by: Martin Michlmayr Signed-off-by: Nicolas Pitre diff --git a/arch/arm/configs/kirkwood_defconfig b/arch/arm/configs/kirkwood_defconfig index 0a1abb9..af74cc2 100644 --- a/arch/arm/configs/kirkwood_defconfig +++ b/arch/arm/configs/kirkwood_defconfig @@ -629,7 +629,7 @@ CONFIG_SCSI_LOWLEVEL=y CONFIG_ATA=y # CONFIG_ATA_NONSTANDARD is not set CONFIG_SATA_PMP=y -# CONFIG_SATA_AHCI is not set +CONFIG_SATA_AHCI=y # CONFIG_SATA_SIL24 is not set CONFIG_ATA_SFF=y # CONFIG_SATA_SVW is not set diff --git a/arch/arm/mach-kirkwood/ts219-setup.c b/arch/arm/mach-kirkwood/ts219-setup.c index 01aa213..ec1a64f 100644 --- a/arch/arm/mach-kirkwood/ts219-setup.c +++ b/arch/arm/mach-kirkwood/ts219-setup.c @@ -206,6 +206,15 @@ static void __init qnap_ts219_init(void) } +static int __init ts219_pci_init(void) +{ + if (machine_is_ts219()) + kirkwood_pcie_init(); + + return 0; +} +subsys_initcall(ts219_pci_init); + MACHINE_START(TS219, "QNAP TS-119/TS-219") /* Maintainer: Martin Michlmayr */ .phys_io = KIRKWOOD_REGS_PHYS_BASE, -- cgit v0.10.2 From 94da210af4978b94cb70318bd1b282a73c50b175 Mon Sep 17 00:00:00 2001 From: Simon Kagstrom Date: Thu, 20 Aug 2009 09:19:53 +0200 Subject: [ARM] Orion NAND: Make asm volatile avoid GCC pushing ldrd out of the loop GCC 4.3.3 and 4.4.1 happily moves the dword load instruction out of the loop in orion_nand_read_buf. This patch makes the instruction volatile to avoid the issue. I've discussed this at gcc-help, refer to the thread at http://gcc.gnu.org/ml/gcc-help/2009-08/msg00187.html The early clobber is added to avoid the destination registers and the source register overlapping. Signed-off-by: Simon Kagstrom Signed-off-by: Nicolas Pitre diff --git a/drivers/mtd/nand/orion_nand.c b/drivers/mtd/nand/orion_nand.c index 7ad9722..0d9d4bc 100644 --- a/drivers/mtd/nand/orion_nand.c +++ b/drivers/mtd/nand/orion_nand.c @@ -61,7 +61,7 @@ static void orion_nand_read_buf(struct mtd_info *mtd, uint8_t *buf, int len) buf64 = (uint64_t *)buf; while (i < len/8) { uint64_t x; - asm ("ldrd\t%0, [%1]" : "=r" (x) : "r" (io_base)); + asm volatile ("ldrd\t%0, [%1]" : "=&r" (x) : "r" (io_base)); buf64[i++] = x; } i *= 8; -- cgit v0.10.2 From a6a06f7b577f89d0b916c5ccaff67ca5ed444a78 Mon Sep 17 00:00:00 2001 From: Amerigo Wang Date: Fri, 21 Aug 2009 04:34:45 -0400 Subject: x86: Fix an incorrect argument of reserve_bootmem() This line looks suspicious, because if this is true, then the 'flags' parameter of function reserve_bootmem_generic() will be unused when !CONFIG_NUMA. I don't think this is what we want. Signed-off-by: WANG Cong Cc: Yinghai Lu Cc: akpm@linux-foundation.org LKML-Reference: <20090821083709.5098.52505.sendpatchset@localhost.localdomain> Signed-off-by: Ingo Molnar diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c index 6176fe8..ea56b8c 100644 --- a/arch/x86/mm/init_64.c +++ b/arch/x86/mm/init_64.c @@ -796,7 +796,7 @@ int __init reserve_bootmem_generic(unsigned long phys, unsigned long len, return ret; #else - reserve_bootmem(phys, len, BOOTMEM_DEFAULT); + reserve_bootmem(phys, len, flags); #endif if (phys+len <= MAX_DMA_PFN*PAGE_SIZE) { -- cgit v0.10.2 From 353d5c30c666580347515da609dd74a2b8e9b828 Mon Sep 17 00:00:00 2001 From: Hugh Dickins Date: Mon, 24 Aug 2009 16:30:28 +0100 Subject: mm: fix hugetlb bug due to user_shm_unlock call 2.6.30's commit 8a0bdec194c21c8fdef840989d0d7b742bb5d4bc removed user_shm_lock() calls in hugetlb_file_setup() but left the user_shm_unlock call in shm_destroy(). In detail: Assume that can_do_hugetlb_shm() returns true and hence user_shm_lock() is not called in hugetlb_file_setup(). However, user_shm_unlock() is called in any case in shm_destroy() and in the following atomic_dec_and_lock(&up->__count) in free_uid() is executed and if up->__count gets zero, also cleanup_user_struct() is scheduled. Note that sched_destroy_user() is empty if CONFIG_USER_SCHED is not set. However, the ref counter up->__count gets unexpectedly non-positive and the corresponding structs are freed even though there are live references to them, resulting in a kernel oops after a lots of shmget(SHM_HUGETLB)/shmctl(IPC_RMID) cycles and CONFIG_USER_SCHED set. Hugh changed Stefan's suggested patch: can_do_hugetlb_shm() at the time of shm_destroy() may give a different answer from at the time of hugetlb_file_setup(). And fixed newseg()'s no_id error path, which has missed user_shm_unlock() ever since it came in 2.6.9. Reported-by: Stefan Huber Signed-off-by: Hugh Dickins Tested-by: Stefan Huber Cc: stable@kernel.org Signed-off-by: Linus Torvalds diff --git a/fs/hugetlbfs/inode.c b/fs/hugetlbfs/inode.c index 941c842..cb88dac 100644 --- a/fs/hugetlbfs/inode.c +++ b/fs/hugetlbfs/inode.c @@ -935,26 +935,28 @@ static int can_do_hugetlb_shm(void) return capable(CAP_IPC_LOCK) || in_group_p(sysctl_hugetlb_shm_group); } -struct file *hugetlb_file_setup(const char *name, size_t size, int acctflag) +struct file *hugetlb_file_setup(const char *name, size_t size, int acctflag, + struct user_struct **user) { int error = -ENOMEM; - int unlock_shm = 0; struct file *file; struct inode *inode; struct dentry *dentry, *root; struct qstr quick_string; - struct user_struct *user = current_user(); + *user = NULL; if (!hugetlbfs_vfsmount) return ERR_PTR(-ENOENT); if (!can_do_hugetlb_shm()) { - if (user_shm_lock(size, user)) { - unlock_shm = 1; + *user = current_user(); + if (user_shm_lock(size, *user)) { WARN_ONCE(1, "Using mlock ulimits for SHM_HUGETLB deprecated\n"); - } else + } else { + *user = NULL; return ERR_PTR(-EPERM); + } } root = hugetlbfs_vfsmount->mnt_root; @@ -996,8 +998,10 @@ out_inode: out_dentry: dput(dentry); out_shm_unlock: - if (unlock_shm) - user_shm_unlock(size, user); + if (*user) { + user_shm_unlock(size, *user); + *user = NULL; + } return ERR_PTR(error); } diff --git a/include/linux/hugetlb.h b/include/linux/hugetlb.h index 2723513..5cbc620 100644 --- a/include/linux/hugetlb.h +++ b/include/linux/hugetlb.h @@ -10,6 +10,7 @@ #include struct ctl_table; +struct user_struct; int PageHuge(struct page *page); @@ -146,7 +147,8 @@ static inline struct hugetlbfs_sb_info *HUGETLBFS_SB(struct super_block *sb) extern const struct file_operations hugetlbfs_file_operations; extern struct vm_operations_struct hugetlb_vm_ops; -struct file *hugetlb_file_setup(const char *name, size_t, int); +struct file *hugetlb_file_setup(const char *name, size_t size, int acct, + struct user_struct **user); int hugetlb_get_quota(struct address_space *mapping, long delta); void hugetlb_put_quota(struct address_space *mapping, long delta); @@ -168,7 +170,7 @@ static inline void set_file_hugepages(struct file *file) #define is_file_hugepages(file) 0 #define set_file_hugepages(file) BUG() -#define hugetlb_file_setup(name,size,acctflag) ERR_PTR(-ENOSYS) +#define hugetlb_file_setup(name,size,acct,user) ERR_PTR(-ENOSYS) #endif /* !CONFIG_HUGETLBFS */ diff --git a/ipc/shm.c b/ipc/shm.c index 15dd238..1bc4701 100644 --- a/ipc/shm.c +++ b/ipc/shm.c @@ -174,7 +174,7 @@ static void shm_destroy(struct ipc_namespace *ns, struct shmid_kernel *shp) shm_unlock(shp); if (!is_file_hugepages(shp->shm_file)) shmem_lock(shp->shm_file, 0, shp->mlock_user); - else + else if (shp->mlock_user) user_shm_unlock(shp->shm_file->f_path.dentry->d_inode->i_size, shp->mlock_user); fput (shp->shm_file); @@ -369,8 +369,8 @@ static int newseg(struct ipc_namespace *ns, struct ipc_params *params) /* hugetlb_file_setup applies strict accounting */ if (shmflg & SHM_NORESERVE) acctflag = VM_NORESERVE; - file = hugetlb_file_setup(name, size, acctflag); - shp->mlock_user = current_user(); + file = hugetlb_file_setup(name, size, acctflag, + &shp->mlock_user); } else { /* * Do not allow no accounting for OVERCOMMIT_NEVER, even @@ -410,6 +410,8 @@ static int newseg(struct ipc_namespace *ns, struct ipc_params *params) return error; no_id: + if (shp->mlock_user) /* shmflg & SHM_HUGETLB case */ + user_shm_unlock(size, shp->mlock_user); fput(file); no_file: security_shm_free(shp); -- cgit v0.10.2 From 7111dc73923e9737b38a3ef5b5f236109000ff28 Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Mon, 24 Aug 2009 19:21:29 -0400 Subject: NFSv4: Fix an infinite looping problem with the nfs4_state_manager Commit 76db6d9500caeaa774a3e32a997eba30bbdc176b (nfs41: add session setup to the state manager) introduces an infinite loop possibility in the NFSv4 state manager. By first checking nfs4_has_session() before clearing the NFS4CLNT_SESSION_SETUP flag, it allows for a situation where someone sets that flag, but it never gets cleared, and so the state manager loops. In fact commit c3fad1b1aaf850bf692642642ace7cd0d64af0a3 (nfs41: add session reset to state manager) causes this to happen every time we get a network partition error. Signed-off-by: Trond Myklebust Tested-by: Daniel J Blueman Signed-off-by: Linus Torvalds diff --git a/fs/nfs/nfs4state.c b/fs/nfs/nfs4state.c index 65ca8c1..1434080 100644 --- a/fs/nfs/nfs4state.c +++ b/fs/nfs/nfs4state.c @@ -1250,8 +1250,8 @@ static void nfs4_state_manager(struct nfs_client *clp) continue; } /* Initialize or reset the session */ - if (nfs4_has_session(clp) && - test_and_clear_bit(NFS4CLNT_SESSION_SETUP, &clp->cl_state)) { + if (test_and_clear_bit(NFS4CLNT_SESSION_SETUP, &clp->cl_state) + && nfs4_has_session(clp)) { if (clp->cl_cons_state == NFS_CS_SESSION_INITING) status = nfs4_initialize_session(clp); else -- cgit v0.10.2 From 942642a412454c3365f0abc8399c8ef2944f4eac Mon Sep 17 00:00:00 2001 From: Sean Young Date: Thu, 6 Aug 2009 17:35:50 +0800 Subject: drm/i915: Set the multiplier for SDVO on G33 platform http://bugs.freedesktop.org/show_bug.cgi?id=21417 Signed-off-by: Sean Young Reviewed-by: Zhao Yakui Acked-by: Zhenyu Wang Signed-off-by: Eric Anholt diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index d6fce21..f611e21 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -2396,7 +2396,7 @@ static int intel_crtc_mode_set(struct drm_crtc *crtc, if (is_sdvo) { dpll |= DPLL_DVO_HIGH_SPEED; sdvo_pixel_multiply = adjusted_mode->clock / mode->clock; - if (IS_I945G(dev) || IS_I945GM(dev)) + if (IS_I945G(dev) || IS_I945GM(dev) || IS_G33(dev)) dpll |= (sdvo_pixel_multiply - 1) << SDVO_MULTIPLIER_SHIFT_HIRES; else if (IS_IGDNG(dev)) dpll |= (sdvo_pixel_multiply - 1) << PLL_REF_SDVO_HDMI_MULTIPLIER_SHIFT; -- cgit v0.10.2 From bc5e5718acd7f7d000d913e619562767863610bf Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Bruno=20Pr=C3=A9mont?= Date: Sat, 8 Aug 2009 13:01:17 +0200 Subject: drm/i915: Check if BIOS enabled dual-channel LVDS on 8xx, not only on 9xx MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Commit 0c2e39525b3b53a97a0202c5f35058147e53977e is not sufficient to get fd.o bug #20115 fixed. In addition intel_find_best_PLL() must not only rely on BIOS settings for i9xx chips but also for i8xx, so drop the IS_I9XX() check. Signed-off-by: Bruno Prémont Signed-off-by: Eric Anholt diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index f611e21..8fd90f3 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -666,7 +666,7 @@ intel_find_best_PLL(const intel_limit_t *limit, struct drm_crtc *crtc, intel_clock_t clock; int err = target; - if (IS_I9XX(dev) && intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS) && + if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS) && (I915_READ(LVDS)) != 0) { /* * For LVDS, if the panel is on, just rely on its current -- cgit v0.10.2 From 19e1f888c681d9f71ae0a814902d334eac1911dd Mon Sep 17 00:00:00 2001 From: Roel Kluin Date: Sun, 9 Aug 2009 13:50:53 +0200 Subject: drm/i915: Fix typo that broke SVID1 in intel_sdvo_multifunc_encoder() Bit SDVO_OUTPUT_SVID0 was tested twice Signed-off-by: Roel Kluin Signed-off-by: Eric Anholt diff --git a/drivers/gpu/drm/i915/intel_sdvo.c b/drivers/gpu/drm/i915/intel_sdvo.c index 5371d93..95ca0ac 100644 --- a/drivers/gpu/drm/i915/intel_sdvo.c +++ b/drivers/gpu/drm/i915/intel_sdvo.c @@ -1458,7 +1458,7 @@ intel_sdvo_multifunc_encoder(struct intel_output *intel_output) (SDVO_OUTPUT_RGB0 | SDVO_OUTPUT_RGB1)) caps++; if (sdvo_priv->caps.output_flags & - (SDVO_OUTPUT_SVID0 | SDVO_OUTPUT_SVID0)) + (SDVO_OUTPUT_SVID0 | SDVO_OUTPUT_SVID1)) caps++; if (sdvo_priv->caps.output_flags & (SDVO_OUTPUT_CVBS0 | SDVO_OUTPUT_CVBS1)) -- cgit v0.10.2 From 27185ae1b795a4ba5e25b95fb5584e950545d774 Mon Sep 17 00:00:00 2001 From: Ma Ling Date: Mon, 24 Aug 2009 13:50:23 +0800 Subject: drm/i915: Always use SDVO_B detect bit for SDVO output detection. MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit After the following commit is shipped, the SDVO C detection will depend on the SDVO_C/DP detion bit. commit 13520b051e8888dd3af9bda639d83e7df76613d1 Author: Kristian Høgsberg Date: Fri Mar 13 15:42:14 2009 -0400 drm/i915: Read the right SDVO register when detecting SVDO/HDMI. According to the spec we should continue to detect the SDVO_B/C based on the SDVO_B detection bit. The new detection bit on G4X platform is for the HDMI_C detection rather than SDVO_C detection. https://bugs.freedesktop.org/show_bug.cgi?id=20639 Signed-off-by: Ma Ling Acked-by: Zhao Yakui Signed-off-by: Eric Anholt diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 8fd90f3..4fad113 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -3218,30 +3218,30 @@ static void intel_setup_outputs(struct drm_device *dev) intel_dp_init(dev, PCH_DP_D); } else if (IS_I9XX(dev)) { - int found; - u32 reg; + bool found = false; if (I915_READ(SDVOB) & SDVO_DETECTED) { found = intel_sdvo_init(dev, SDVOB); if (!found && SUPPORTS_INTEGRATED_HDMI(dev)) intel_hdmi_init(dev, SDVOB); + if (!found && SUPPORTS_INTEGRATED_DP(dev)) intel_dp_init(dev, DP_B); } /* Before G4X SDVOC doesn't have its own detect register */ - if (IS_G4X(dev)) - reg = SDVOC; - else - reg = SDVOB; - if (I915_READ(reg) & SDVO_DETECTED) { + if (I915_READ(SDVOB) & SDVO_DETECTED) found = intel_sdvo_init(dev, SDVOC); - if (!found && SUPPORTS_INTEGRATED_HDMI(dev)) + + if (!found && (I915_READ(SDVOC) & SDVO_DETECTED)) { + + if (SUPPORTS_INTEGRATED_HDMI(dev)) intel_hdmi_init(dev, SDVOC); - if (!found && SUPPORTS_INTEGRATED_DP(dev)) + if (SUPPORTS_INTEGRATED_DP(dev)) intel_dp_init(dev, DP_C); } + if (SUPPORTS_INTEGRATED_DP(dev) && (I915_READ(DP_D) & DP_DETECTED)) intel_dp_init(dev, DP_D); } else -- cgit v0.10.2 From f8aed700c6ec46ddade6570004ce25332283b306 Mon Sep 17 00:00:00 2001 From: Ma Ling Date: Mon, 24 Aug 2009 13:50:24 +0800 Subject: drm/i915: Set crtc/clone mask in different output devices Based on Bspec each encoder has different sharing pipe property, i.e. Integrated or SDVO TV both will occupy one pipe exclusively, and sdvo-non-tv and crt are allowed to share one. The patch moves sharing judgment into differnet output functions, and sets the right clone bit. This fixes both HDMI outputs choosing the same pipe. https://bugs.freedesktop.org/show_bug.cgi?id=22247 Signed-off-by: Ma Ling Reviewed-by : Jesse Barnes Signed-off-by: Zhao Yakui Signed-off-by: Eric Anholt diff --git a/drivers/gpu/drm/i915/intel_crt.c b/drivers/gpu/drm/i915/intel_crt.c index 4cf8e2e..d129497 100644 --- a/drivers/gpu/drm/i915/intel_crt.c +++ b/drivers/gpu/drm/i915/intel_crt.c @@ -537,6 +537,10 @@ void intel_crt_init(struct drm_device *dev) } intel_output->type = INTEL_OUTPUT_ANALOG; + intel_output->clone_mask = (1 << INTEL_SDVO_NON_TV_CLONE_BIT) | + (1 << INTEL_ANALOG_CLONE_BIT) | + (1 << INTEL_SDVO_LVDS_CLONE_BIT); + intel_output->crtc_mask = (1 << 0) | (1 << 1); connector->interlace_allowed = 0; connector->doublescan_allowed = 0; diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 4fad113..3fadb53 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -3170,7 +3170,7 @@ static int intel_connector_clones(struct drm_device *dev, int type_mask) list_for_each_entry(connector, &dev->mode_config.connector_list, head) { struct intel_output *intel_output = to_intel_output(connector); - if (type_mask & (1 << intel_output->type)) + if (type_mask & intel_output->clone_mask) index_mask |= (1 << entry); entry++; } @@ -3253,51 +3253,10 @@ static void intel_setup_outputs(struct drm_device *dev) list_for_each_entry(connector, &dev->mode_config.connector_list, head) { struct intel_output *intel_output = to_intel_output(connector); struct drm_encoder *encoder = &intel_output->enc; - int crtc_mask = 0, clone_mask = 0; - /* valid crtcs */ - switch(intel_output->type) { - case INTEL_OUTPUT_HDMI: - crtc_mask = ((1 << 0)| - (1 << 1)); - clone_mask = ((1 << INTEL_OUTPUT_HDMI)); - break; - case INTEL_OUTPUT_DVO: - case INTEL_OUTPUT_SDVO: - crtc_mask = ((1 << 0)| - (1 << 1)); - clone_mask = ((1 << INTEL_OUTPUT_ANALOG) | - (1 << INTEL_OUTPUT_DVO) | - (1 << INTEL_OUTPUT_SDVO)); - break; - case INTEL_OUTPUT_ANALOG: - crtc_mask = ((1 << 0)| - (1 << 1)); - clone_mask = ((1 << INTEL_OUTPUT_ANALOG) | - (1 << INTEL_OUTPUT_DVO) | - (1 << INTEL_OUTPUT_SDVO)); - break; - case INTEL_OUTPUT_LVDS: - crtc_mask = (1 << 1); - clone_mask = (1 << INTEL_OUTPUT_LVDS); - break; - case INTEL_OUTPUT_TVOUT: - crtc_mask = ((1 << 0) | - (1 << 1)); - clone_mask = (1 << INTEL_OUTPUT_TVOUT); - break; - case INTEL_OUTPUT_DISPLAYPORT: - crtc_mask = ((1 << 0) | - (1 << 1)); - clone_mask = (1 << INTEL_OUTPUT_DISPLAYPORT); - break; - case INTEL_OUTPUT_EDP: - crtc_mask = (1 << 1); - clone_mask = (1 << INTEL_OUTPUT_EDP); - break; - } - encoder->possible_crtcs = crtc_mask; - encoder->possible_clones = intel_connector_clones(dev, clone_mask); + encoder->possible_crtcs = intel_output->crtc_mask; + encoder->possible_clones = intel_connector_clones(dev, + intel_output->clone_mask); } } diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index a6ff15a..f2afc4a 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -1254,6 +1254,18 @@ intel_dp_init(struct drm_device *dev, int output_reg) else intel_output->type = INTEL_OUTPUT_DISPLAYPORT; + if (output_reg == DP_B) + intel_output->clone_mask = (1 << INTEL_DP_B_CLONE_BIT); + else if (output_reg == DP_C) + intel_output->clone_mask = (1 << INTEL_DP_C_CLONE_BIT); + else if (output_reg == DP_D) + intel_output->clone_mask = (1 << INTEL_DP_D_CLONE_BIT); + + if (IS_eDP(intel_output)) { + intel_output->crtc_mask = (1 << 1); + intel_output->clone_mask = (1 << INTEL_OUTPUT_EDP); + } else + intel_output->crtc_mask = (1 << 0) | (1 << 1); connector->interlace_allowed = true; connector->doublescan_allowed = 0; diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h index d6f92ea..25aa6fa 100644 --- a/drivers/gpu/drm/i915/intel_drv.h +++ b/drivers/gpu/drm/i915/intel_drv.h @@ -57,6 +57,24 @@ #define INTEL_OUTPUT_DISPLAYPORT 7 #define INTEL_OUTPUT_EDP 8 +/* Intel Pipe Clone Bit */ +#define INTEL_HDMIB_CLONE_BIT 1 +#define INTEL_HDMIC_CLONE_BIT 2 +#define INTEL_HDMID_CLONE_BIT 3 +#define INTEL_HDMIE_CLONE_BIT 4 +#define INTEL_HDMIF_CLONE_BIT 5 +#define INTEL_SDVO_NON_TV_CLONE_BIT 6 +#define INTEL_SDVO_TV_CLONE_BIT 7 +#define INTEL_SDVO_LVDS_CLONE_BIT 8 +#define INTEL_ANALOG_CLONE_BIT 9 +#define INTEL_TV_CLONE_BIT 10 +#define INTEL_DP_B_CLONE_BIT 11 +#define INTEL_DP_C_CLONE_BIT 12 +#define INTEL_DP_D_CLONE_BIT 13 +#define INTEL_LVDS_CLONE_BIT 14 +#define INTEL_DVO_TMDS_CLONE_BIT 15 +#define INTEL_DVO_LVDS_CLONE_BIT 16 + #define INTEL_DVO_CHIP_NONE 0 #define INTEL_DVO_CHIP_LVDS 1 #define INTEL_DVO_CHIP_TMDS 2 @@ -86,6 +104,8 @@ struct intel_output { bool needs_tv_clock; void *dev_priv; void (*hot_plug)(struct intel_output *); + int crtc_mask; + int clone_mask; }; struct intel_crtc { diff --git a/drivers/gpu/drm/i915/intel_dvo.c b/drivers/gpu/drm/i915/intel_dvo.c index 13bff20..a4d2606 100644 --- a/drivers/gpu/drm/i915/intel_dvo.c +++ b/drivers/gpu/drm/i915/intel_dvo.c @@ -435,14 +435,20 @@ void intel_dvo_init(struct drm_device *dev) continue; intel_output->type = INTEL_OUTPUT_DVO; + intel_output->crtc_mask = (1 << 0) | (1 << 1); switch (dvo->type) { case INTEL_DVO_CHIP_TMDS: + intel_output->clone_mask = + (1 << INTEL_DVO_TMDS_CLONE_BIT) | + (1 << INTEL_ANALOG_CLONE_BIT); drm_connector_init(dev, connector, &intel_dvo_connector_funcs, DRM_MODE_CONNECTOR_DVII); encoder_type = DRM_MODE_ENCODER_TMDS; break; case INTEL_DVO_CHIP_LVDS: + intel_output->clone_mask = + (1 << INTEL_DVO_LVDS_CLONE_BIT); drm_connector_init(dev, connector, &intel_dvo_connector_funcs, DRM_MODE_CONNECTOR_LVDS); diff --git a/drivers/gpu/drm/i915/intel_hdmi.c b/drivers/gpu/drm/i915/intel_hdmi.c index 1842290..fa304e1 100644 --- a/drivers/gpu/drm/i915/intel_hdmi.c +++ b/drivers/gpu/drm/i915/intel_hdmi.c @@ -230,22 +230,28 @@ void intel_hdmi_init(struct drm_device *dev, int sdvox_reg) connector->interlace_allowed = 0; connector->doublescan_allowed = 0; + intel_output->crtc_mask = (1 << 0) | (1 << 1); /* Set up the DDC bus. */ - if (sdvox_reg == SDVOB) + if (sdvox_reg == SDVOB) { + intel_output->clone_mask = (1 << INTEL_HDMIB_CLONE_BIT); intel_output->ddc_bus = intel_i2c_create(dev, GPIOE, "HDMIB"); - else if (sdvox_reg == SDVOC) + } else if (sdvox_reg == SDVOC) { + intel_output->clone_mask = (1 << INTEL_HDMIC_CLONE_BIT); intel_output->ddc_bus = intel_i2c_create(dev, GPIOD, "HDMIC"); - else if (sdvox_reg == HDMIB) + } else if (sdvox_reg == HDMIB) { + intel_output->clone_mask = (1 << INTEL_HDMID_CLONE_BIT); intel_output->ddc_bus = intel_i2c_create(dev, PCH_GPIOE, "HDMIB"); - else if (sdvox_reg == HDMIC) + } else if (sdvox_reg == HDMIC) { + intel_output->clone_mask = (1 << INTEL_HDMIE_CLONE_BIT); intel_output->ddc_bus = intel_i2c_create(dev, PCH_GPIOD, "HDMIC"); - else if (sdvox_reg == HDMID) + } else if (sdvox_reg == HDMID) { + intel_output->clone_mask = (1 << INTEL_HDMIF_CLONE_BIT); intel_output->ddc_bus = intel_i2c_create(dev, PCH_GPIOF, "HDMID"); - + } if (!intel_output->ddc_bus) goto err_connector; diff --git a/drivers/gpu/drm/i915/intel_lvds.c b/drivers/gpu/drm/i915/intel_lvds.c index 3f445a8..8df02ef 100644 --- a/drivers/gpu/drm/i915/intel_lvds.c +++ b/drivers/gpu/drm/i915/intel_lvds.c @@ -916,6 +916,8 @@ void intel_lvds_init(struct drm_device *dev) drm_mode_connector_attach_encoder(&intel_output->base, &intel_output->enc); intel_output->type = INTEL_OUTPUT_LVDS; + intel_output->clone_mask = (1 << INTEL_LVDS_CLONE_BIT); + intel_output->crtc_mask = (1 << 1); drm_encoder_helper_add(encoder, &intel_lvds_helper_funcs); drm_connector_helper_add(connector, &intel_lvds_connector_helper_funcs); connector->display_info.subpixel_order = SubPixelHorizontalRGB; diff --git a/drivers/gpu/drm/i915/intel_sdvo.c b/drivers/gpu/drm/i915/intel_sdvo.c index 95ca0ac..d3b74ba 100644 --- a/drivers/gpu/drm/i915/intel_sdvo.c +++ b/drivers/gpu/drm/i915/intel_sdvo.c @@ -1967,6 +1967,9 @@ intel_sdvo_output_setup(struct intel_output *intel_output, uint16_t flags) intel_sdvo_set_colorimetry(intel_output, SDVO_COLORIMETRY_RGB256); connector->connector_type = DRM_MODE_CONNECTOR_HDMIA; + intel_output->clone_mask = + (1 << INTEL_SDVO_NON_TV_CLONE_BIT) | + (1 << INTEL_ANALOG_CLONE_BIT); } } else if (flags & SDVO_OUTPUT_SVID0) { @@ -1975,11 +1978,14 @@ intel_sdvo_output_setup(struct intel_output *intel_output, uint16_t flags) connector->connector_type = DRM_MODE_CONNECTOR_SVIDEO; sdvo_priv->is_tv = true; intel_output->needs_tv_clock = true; + intel_output->clone_mask = 1 << INTEL_SDVO_TV_CLONE_BIT; } else if (flags & SDVO_OUTPUT_RGB0) { sdvo_priv->controlled_output = SDVO_OUTPUT_RGB0; encoder->encoder_type = DRM_MODE_ENCODER_DAC; connector->connector_type = DRM_MODE_CONNECTOR_VGA; + intel_output->clone_mask = (1 << INTEL_SDVO_NON_TV_CLONE_BIT) | + (1 << INTEL_ANALOG_CLONE_BIT); } else if (flags & SDVO_OUTPUT_RGB1) { sdvo_priv->controlled_output = SDVO_OUTPUT_RGB1; @@ -1991,12 +1997,16 @@ intel_sdvo_output_setup(struct intel_output *intel_output, uint16_t flags) encoder->encoder_type = DRM_MODE_ENCODER_LVDS; connector->connector_type = DRM_MODE_CONNECTOR_LVDS; sdvo_priv->is_lvds = true; + intel_output->clone_mask = (1 << INTEL_ANALOG_CLONE_BIT) | + (1 << INTEL_SDVO_LVDS_CLONE_BIT); } else if (flags & SDVO_OUTPUT_LVDS1) { sdvo_priv->controlled_output = SDVO_OUTPUT_LVDS1; encoder->encoder_type = DRM_MODE_ENCODER_LVDS; connector->connector_type = DRM_MODE_CONNECTOR_LVDS; sdvo_priv->is_lvds = true; + intel_output->clone_mask = (1 << INTEL_ANALOG_CLONE_BIT) | + (1 << INTEL_SDVO_LVDS_CLONE_BIT); } else { unsigned char bytes[2]; @@ -2009,6 +2019,7 @@ intel_sdvo_output_setup(struct intel_output *intel_output, uint16_t flags) bytes[0], bytes[1]); ret = false; } + intel_output->crtc_mask = (1 << 0) | (1 << 1); if (ret && registered) ret = drm_sysfs_connector_add(connector) == 0 ? true : false; diff --git a/drivers/gpu/drm/i915/intel_tv.c b/drivers/gpu/drm/i915/intel_tv.c index da4ab4d..2fbe13a 100644 --- a/drivers/gpu/drm/i915/intel_tv.c +++ b/drivers/gpu/drm/i915/intel_tv.c @@ -1718,6 +1718,7 @@ intel_tv_init(struct drm_device *dev) if (!intel_output) { return; } + connector = &intel_output->base; drm_connector_init(dev, connector, &intel_tv_connector_funcs, @@ -1729,6 +1730,7 @@ intel_tv_init(struct drm_device *dev) drm_mode_connector_attach_encoder(&intel_output->base, &intel_output->enc); tv_priv = (struct intel_tv_priv *)(intel_output + 1); intel_output->type = INTEL_OUTPUT_TVOUT; + intel_output->clone_mask = (1 << INTEL_TV_CLONE_BIT); intel_output->enc.possible_crtcs = ((1 << 0) | (1 << 1)); intel_output->enc.possible_clones = (1 << INTEL_OUTPUT_TVOUT); intel_output->dev_priv = tv_priv; -- cgit v0.10.2 From a2cb6a4dd470d7a64255a10b843b0d188416b78f Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Mon, 24 Aug 2009 19:37:05 -0700 Subject: pkt_sched: Fix bogon in tasklet_hrtimer changes. Reported by Stephen Rothwell, luckily it's harmless: net/sched/sch_api.c: In function 'qdisc_watchdog': net/sched/sch_api.c:460: warning: initialization from incompatible pointer type net/sched/sch_cbq.c: In function 'cbq_undelay': net/sched/sch_cbq.c:595: warning: initialization from incompatible pointer type Signed-off-by: David S. Miller diff --git a/net/sched/sch_api.c b/net/sched/sch_api.c index e1c2bf7..92e6f3a 100644 --- a/net/sched/sch_api.c +++ b/net/sched/sch_api.c @@ -458,7 +458,7 @@ EXPORT_SYMBOL(qdisc_warn_nonwc); static enum hrtimer_restart qdisc_watchdog(struct hrtimer *timer) { struct qdisc_watchdog *wd = container_of(timer, struct qdisc_watchdog, - timer); + timer.timer); wd->qdisc->flags &= ~TCQ_F_THROTTLED; __netif_schedule(qdisc_root(wd->qdisc)); diff --git a/net/sched/sch_cbq.c b/net/sched/sch_cbq.c index 81652d6..149b040 100644 --- a/net/sched/sch_cbq.c +++ b/net/sched/sch_cbq.c @@ -593,7 +593,7 @@ static psched_tdiff_t cbq_undelay_prio(struct cbq_sched_data *q, int prio, static enum hrtimer_restart cbq_undelay(struct hrtimer *timer) { struct cbq_sched_data *q = container_of(timer, struct cbq_sched_data, - delay_timer); + delay_timer.timer); struct Qdisc *sch = q->watchdog.qdisc; psched_time_t now; psched_tdiff_t delay = 0; -- cgit v0.10.2 From b1ddaf681e362ed453182ddee1699d7487069a16 Mon Sep 17 00:00:00 2001 From: Clemens Ladisch Date: Tue, 25 Aug 2009 08:15:41 +0200 Subject: sound: pcm_lib: fix unsorted list constraint handling snd_interval_list() expected a sorted list but did not document this, so there are drivers that give it an unsorted list. To fix this, change the algorithm to work with any list. This fixes the "Slave PCM not usable" error with USB devices that have multiple alternate settings with sample rates in decreasing order, such as the Philips Askey VC010 WebCam. http://bugzilla.kernel.org/show_bug.cgi?id=14028 Reported-and-tested-by: Andrzej Signed-off-by: Clemens Ladisch Cc: Signed-off-by: Takashi Iwai diff --git a/sound/core/pcm_lib.c b/sound/core/pcm_lib.c index 333e4dd..d8a7bb2 100644 --- a/sound/core/pcm_lib.c +++ b/sound/core/pcm_lib.c @@ -909,47 +909,24 @@ static int snd_interval_ratden(struct snd_interval *i, int snd_interval_list(struct snd_interval *i, unsigned int count, unsigned int *list, unsigned int mask) { unsigned int k; - int changed = 0; + struct snd_interval list_range; if (!count) { i->empty = 1; return -EINVAL; } + snd_interval_any(&list_range); + list_range.min = UINT_MAX; + list_range.max = 0; for (k = 0; k < count; k++) { if (mask && !(mask & (1 << k))) continue; - if (i->min == list[k] && !i->openmin) - goto _l1; - if (i->min < list[k]) { - i->min = list[k]; - i->openmin = 0; - changed = 1; - goto _l1; - } - } - i->empty = 1; - return -EINVAL; - _l1: - for (k = count; k-- > 0;) { - if (mask && !(mask & (1 << k))) + if (!snd_interval_test(i, list[k])) continue; - if (i->max == list[k] && !i->openmax) - goto _l2; - if (i->max > list[k]) { - i->max = list[k]; - i->openmax = 0; - changed = 1; - goto _l2; - } + list_range.min = min(list_range.min, list[k]); + list_range.max = max(list_range.max, list[k]); } - i->empty = 1; - return -EINVAL; - _l2: - if (snd_interval_checkempty(i)) { - i->empty = 1; - return -EINVAL; - } - return changed; + return snd_interval_refine(i, &list_range); } EXPORT_SYMBOL(snd_interval_list); -- cgit v0.10.2 From c62e43202e7cf50ca24bce58b255df7bf5de69d0 Mon Sep 17 00:00:00 2001 From: Jan Beulich Date: Tue, 25 Aug 2009 14:50:53 +0100 Subject: x86: Fix build with older binutils and consolidate linker script binutils prior to 2.17 can't deal with the currently possible situation of a new segment following the per-CPU segment, but that new segment being empty - objcopy misplaces the .bss (and perhaps also the .brk) sections outside of any segment. However, the current ordering of sections really just appears to be the effect of cumulative unrelated changes; re-ordering things allows to easily guarantee that the segment following the per-CPU one is non-empty, and at once eliminates the need for the bogus data.init2 segment. Once touching this code, also use the various data section helper macros from include/asm-generic/vmlinux.lds.h. -v2: fix !SMP builds. Signed-off-by: Jan Beulich Cc: LKML-Reference: <4A94085D02000078000119A5@vpn.id2.novell.com> Signed-off-by: Ingo Molnar diff --git a/arch/x86/kernel/vmlinux.lds.S b/arch/x86/kernel/vmlinux.lds.S index 78d185d..9fc1782 100644 --- a/arch/x86/kernel/vmlinux.lds.S +++ b/arch/x86/kernel/vmlinux.lds.S @@ -46,11 +46,10 @@ PHDRS { data PT_LOAD FLAGS(7); /* RWE */ #ifdef CONFIG_X86_64 user PT_LOAD FLAGS(7); /* RWE */ - data.init PT_LOAD FLAGS(7); /* RWE */ #ifdef CONFIG_SMP percpu PT_LOAD FLAGS(7); /* RWE */ #endif - data.init2 PT_LOAD FLAGS(7); /* RWE */ + init PT_LOAD FLAGS(7); /* RWE */ #endif note PT_NOTE FLAGS(0); /* ___ */ } @@ -103,65 +102,43 @@ SECTIONS __stop___ex_table = .; } :text = 0x9090 - RODATA + RO_DATA(PAGE_SIZE) /* Data */ - . = ALIGN(PAGE_SIZE); .data : AT(ADDR(.data) - LOAD_OFFSET) { /* Start of data section */ _sdata = .; - DATA_DATA - CONSTRUCTORS - } :data + + /* init_task */ + INIT_TASK_DATA(THREAD_SIZE) #ifdef CONFIG_X86_32 - /* 32 bit has nosave before _edata */ - . = ALIGN(PAGE_SIZE); - .data_nosave : AT(ADDR(.data_nosave) - LOAD_OFFSET) { - __nosave_begin = .; - *(.data.nosave) - . = ALIGN(PAGE_SIZE); - __nosave_end = .; - } + /* 32 bit has nosave before _edata */ + NOSAVE_DATA #endif - . = ALIGN(PAGE_SIZE); - .data.page_aligned : AT(ADDR(.data.page_aligned) - LOAD_OFFSET) { - *(.data.page_aligned) + PAGE_ALIGNED_DATA(PAGE_SIZE) *(.data.idt) - } -#ifdef CONFIG_X86_32 - . = ALIGN(32); -#else - . = ALIGN(PAGE_SIZE); - . = ALIGN(CONFIG_X86_L1_CACHE_BYTES); -#endif - .data.cacheline_aligned : - AT(ADDR(.data.cacheline_aligned) - LOAD_OFFSET) { - *(.data.cacheline_aligned) - } + CACHELINE_ALIGNED_DATA(CONFIG_X86_L1_CACHE_BYTES) - /* rarely changed data like cpu maps */ -#ifdef CONFIG_X86_32 - . = ALIGN(32); -#else - . = ALIGN(CONFIG_X86_INTERNODE_CACHE_BYTES); -#endif - .data.read_mostly : AT(ADDR(.data.read_mostly) - LOAD_OFFSET) { - *(.data.read_mostly) + DATA_DATA + CONSTRUCTORS + + /* rarely changed data like cpu maps */ + READ_MOSTLY_DATA(CONFIG_X86_INTERNODE_CACHE_BYTES) /* End of data section */ _edata = .; - } + } :data #ifdef CONFIG_X86_64 #define VSYSCALL_ADDR (-10*1024*1024) -#define VSYSCALL_PHYS_ADDR ((LOADADDR(.data.read_mostly) + \ - SIZEOF(.data.read_mostly) + 4095) & ~(4095)) -#define VSYSCALL_VIRT_ADDR ((ADDR(.data.read_mostly) + \ - SIZEOF(.data.read_mostly) + 4095) & ~(4095)) +#define VSYSCALL_PHYS_ADDR ((LOADADDR(.data) + SIZEOF(.data) + \ + PAGE_SIZE - 1) & ~(PAGE_SIZE - 1)) +#define VSYSCALL_VIRT_ADDR ((ADDR(.data) + SIZEOF(.data) + \ + PAGE_SIZE - 1) & ~(PAGE_SIZE - 1)) #define VLOAD_OFFSET (VSYSCALL_ADDR - VSYSCALL_PHYS_ADDR) #define VLOAD(x) (ADDR(x) - VLOAD_OFFSET) @@ -227,35 +204,29 @@ SECTIONS #endif /* CONFIG_X86_64 */ - /* init_task */ - . = ALIGN(THREAD_SIZE); - .data.init_task : AT(ADDR(.data.init_task) - LOAD_OFFSET) { - *(.data.init_task) + /* Init code and data - will be freed after init */ + . = ALIGN(PAGE_SIZE); + .init.begin : AT(ADDR(.init.begin) - LOAD_OFFSET) { + __init_begin = .; /* paired with __init_end */ } -#ifdef CONFIG_X86_64 - :data.init -#endif +#if defined(CONFIG_X86_64) && defined(CONFIG_SMP) /* - * smp_locks might be freed after init - * start/end must be page aligned + * percpu offsets are zero-based on SMP. PERCPU_VADDR() changes the + * output PHDR, so the next output section - .init.text - should + * start another segment - init. */ - . = ALIGN(PAGE_SIZE); - .smp_locks : AT(ADDR(.smp_locks) - LOAD_OFFSET) { - __smp_locks = .; - *(.smp_locks) - __smp_locks_end = .; - . = ALIGN(PAGE_SIZE); - } + PERCPU_VADDR(0, :percpu) +#endif - /* Init code and data - will be freed after init */ - . = ALIGN(PAGE_SIZE); .init.text : AT(ADDR(.init.text) - LOAD_OFFSET) { - __init_begin = .; /* paired with __init_end */ _sinittext = .; INIT_TEXT _einittext = .; } +#ifdef CONFIG_X86_64 + :init +#endif .init.data : AT(ADDR(.init.data) - LOAD_OFFSET) { INIT_DATA @@ -326,17 +297,7 @@ SECTIONS } #endif -#if defined(CONFIG_X86_64) && defined(CONFIG_SMP) - /* - * percpu offsets are zero-based on SMP. PERCPU_VADDR() changes the - * output PHDR, so the next output section - __data_nosave - should - * start another section data.init2. Also, pda should be at the head of - * percpu area. Preallocate it and define the percpu offset symbol - * so that it can be accessed as a percpu variable. - */ - . = ALIGN(PAGE_SIZE); - PERCPU_VADDR(0, :percpu) -#else +#if !defined(CONFIG_X86_64) || !defined(CONFIG_SMP) PERCPU(PAGE_SIZE) #endif @@ -347,15 +308,22 @@ SECTIONS __init_end = .; } + /* + * smp_locks might be freed after init + * start/end must be page aligned + */ + . = ALIGN(PAGE_SIZE); + .smp_locks : AT(ADDR(.smp_locks) - LOAD_OFFSET) { + __smp_locks = .; + *(.smp_locks) + __smp_locks_end = .; + . = ALIGN(PAGE_SIZE); + } + #ifdef CONFIG_X86_64 .data_nosave : AT(ADDR(.data_nosave) - LOAD_OFFSET) { - . = ALIGN(PAGE_SIZE); - __nosave_begin = .; - *(.data.nosave) - . = ALIGN(PAGE_SIZE); - __nosave_end = .; - } :data.init2 - /* use another section data.init2, see PERCPU_VADDR() above */ + NOSAVE_DATA + } #endif /* BSS */ -- cgit v0.10.2 From 5c58ceff103d8a654f24769bb1baaf84a841b0cc Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Tue, 25 Aug 2009 09:12:43 -0700 Subject: tty: make sure to flush any pending work when halting the ldisc When I rewrote tty ldisc code to use proper reference counts (commits 65b770468e98 and cbe9352fa08f) in order to avoid a race with hangup, the test-program that Eric Biederman used to trigger the original problem seems to have exposed another long-standing bug: the hangup code did the 'tty_ldisc_halt()' to stop any buffer flushing activity, but unlike the other call sites it never actually flushed any pending work. As a result, if you get just the right timing, the pending work may be just about to execute (ie the timer has already triggered and thus cancel_delayed_work() was a no-op), when we then re-initialize the ldisc from under it. That, in turn, results in various random problems, usually seen as a NULL pointer dereference in run_timer_softirq() or a BUG() in worker_thread (but it can be almost anything). Fix it by adding the required 'flush_scheduled_work()' after doing the tty_ldisc_halt() (this also requires us to move the ldisc halt to before taking the ldisc mutex in order to avoid a deadlock with the workqueue executing do_tty_hangup, which requires the mutex). The locking should be cleaned up one day (the requirement to do this outside the ldisc_mutex is very annoying, and weakens the lock), but that's a larger and separate undertaking. Reported-by: Eric W. Biederman Tested-by: Xiaotian Feng Tested-by: Yanmin Zhang Tested-by: Dave Young Cc: Frederic Weisbecker Cc: Greg Kroah-Hartman Cc: Alan Cox Signed-off-by: Linus Torvalds diff --git a/drivers/char/tty_ldisc.c b/drivers/char/tty_ldisc.c index 1733d34..e48af9f 100644 --- a/drivers/char/tty_ldisc.c +++ b/drivers/char/tty_ldisc.c @@ -508,8 +508,9 @@ static void tty_ldisc_restore(struct tty_struct *tty, struct tty_ldisc *old) * be obtained while the delayed work queue halt ensures that no more * data is fed to the ldisc. * - * In order to wait for any existing references to complete see - * tty_ldisc_wait_idle. + * You need to do a 'flush_scheduled_work()' (outside the ldisc_mutex) + * in order to make sure any currently executing ldisc work is also + * flushed. */ static int tty_ldisc_halt(struct tty_struct *tty) @@ -753,11 +754,14 @@ void tty_ldisc_hangup(struct tty_struct *tty) * N_TTY. */ if (tty->driver->flags & TTY_DRIVER_RESET_TERMIOS) { + /* Make sure the old ldisc is quiescent */ + tty_ldisc_halt(tty); + flush_scheduled_work(); + /* Avoid racing set_ldisc or tty_ldisc_release */ mutex_lock(&tty->ldisc_mutex); if (tty->ldisc) { /* Not yet closed */ /* Switch back to N_TTY */ - tty_ldisc_halt(tty); tty_ldisc_reinit(tty); /* At this point we have a closed ldisc and we want to reopen it. We could defer this to the next open but -- cgit v0.10.2 From d8ed1d43e17898761c7221014a15a4c7501d2ff3 Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Tue, 25 Aug 2009 16:47:46 -0700 Subject: sparc64: Validate linear D-TLB misses. When page alloc debugging is not enabled, we essentially accept any virtual address for linear kernel TLB misses. But with kgdb, kernel address probing, and other facilities we can try to access arbitrary crap. So, make sure the address we miss on will translate to physical memory that actually exists. In order to make this work we have to embed the valid address bitmap into the kernel image. And in order to make that less expensive we make an adjustment, in that the max physical memory address is decreased to "1 << 41", even on the chips that support a 42-bit physical address space. We can do this because bit 41 indicates "I/O space" and thus covers non-memory ranges. The result of this is that: 1) kpte_linear_bitmap shrinks from 2K to 1K in size 2) we need 64K more for the valid address bitmap We can't let the valid address bitmap be dynamically allocated once we start using it to validate TLB misses, otherwise we have crazy issues to deal with wrt. recursive TLB misses and such. If we're in a TLB miss it could be the deepest trap level that's legal inside of the cpu. So if we TLB miss referencing the bitmap, the cpu will be out of trap levels and enter RED state. To guard against out-of-range accesses to the bitmap, we have to check to make sure no bits in the physical address above bit 40 are set. We could export and use last_valid_pfn for this check, but that's just an unnecessary extra memory reference. On the plus side of all this, since we load all of these translations into the special 4MB mapping TSB, and we check the TSB first for TLB misses, there should be absolutely no real cost for these new checks in the TLB miss path. Reported-by: heyongli@gmail.com Signed-off-by: David S. Miller diff --git a/arch/sparc/include/asm/pgtable_64.h b/arch/sparc/include/asm/pgtable_64.h index b049abf..0ff92fa 100644 --- a/arch/sparc/include/asm/pgtable_64.h +++ b/arch/sparc/include/asm/pgtable_64.h @@ -726,11 +726,17 @@ extern unsigned long pte_file(pte_t); extern pte_t pgoff_to_pte(unsigned long); #define PTE_FILE_MAX_BITS (64UL - PAGE_SHIFT - 1UL) -extern unsigned long *sparc64_valid_addr_bitmap; +extern unsigned long sparc64_valid_addr_bitmap[]; /* Needs to be defined here and not in linux/mm.h, as it is arch dependent */ -#define kern_addr_valid(addr) \ - (test_bit(__pa((unsigned long)(addr))>>22, sparc64_valid_addr_bitmap)) +static inline bool kern_addr_valid(unsigned long addr) +{ + unsigned long paddr = __pa(addr); + + if ((paddr >> 41UL) != 0UL) + return false; + return test_bit(paddr >> 22, sparc64_valid_addr_bitmap); +} extern int page_in_phys_avail(unsigned long paddr); diff --git a/arch/sparc/kernel/ktlb.S b/arch/sparc/kernel/ktlb.S index cef8def..3ea6e8c 100644 --- a/arch/sparc/kernel/ktlb.S +++ b/arch/sparc/kernel/ktlb.S @@ -151,12 +151,46 @@ kvmap_dtlb_4v: * Must preserve %g1 and %g6 (TAG). */ kvmap_dtlb_tsb4m_miss: - sethi %hi(kpte_linear_bitmap), %g2 - or %g2, %lo(kpte_linear_bitmap), %g2 + /* Clear the PAGE_OFFSET top virtual bits, shift + * down to get PFN, and make sure PFN is in range. + */ + sllx %g4, 21, %g5 - /* Clear the PAGE_OFFSET top virtual bits, then shift - * down to get a 256MB physical address index. + /* Check to see if we know about valid memory at the 4MB + * chunk this physical address will reside within. */ + srlx %g5, 21 + 41, %g2 + brnz,pn %g2, kvmap_dtlb_longpath + nop + + /* This unconditional branch and delay-slot nop gets patched + * by the sethi sequence once the bitmap is properly setup. + */ + .globl valid_addr_bitmap_insn +valid_addr_bitmap_insn: + ba,pt %xcc, 2f + nop + .subsection 2 + .globl valid_addr_bitmap_patch +valid_addr_bitmap_patch: + sethi %hi(sparc64_valid_addr_bitmap), %g7 + or %g7, %lo(sparc64_valid_addr_bitmap), %g7 + .previous + + srlx %g5, 21 + 22, %g2 + srlx %g2, 6, %g5 + and %g2, 63, %g2 + sllx %g5, 3, %g5 + ldx [%g7 + %g5], %g5 + mov 1, %g7 + sllx %g7, %g2, %g7 + andcc %g5, %g7, %g0 + be,pn %xcc, kvmap_dtlb_longpath + +2: sethi %hi(kpte_linear_bitmap), %g2 + or %g2, %lo(kpte_linear_bitmap), %g2 + + /* Get the 256MB physical address index. */ sllx %g4, 21, %g5 mov 1, %g7 srlx %g5, 21 + 28, %g5 diff --git a/arch/sparc/mm/init_64.c b/arch/sparc/mm/init_64.c index ed6be6b..a70a5e1 100644 --- a/arch/sparc/mm/init_64.c +++ b/arch/sparc/mm/init_64.c @@ -145,7 +145,8 @@ static void __init read_obp_memory(const char *property, cmp_p64, NULL); } -unsigned long *sparc64_valid_addr_bitmap __read_mostly; +unsigned long sparc64_valid_addr_bitmap[VALID_ADDR_BITMAP_BYTES / + sizeof(unsigned long)]; EXPORT_SYMBOL(sparc64_valid_addr_bitmap); /* Kernel physical address base and size in bytes. */ @@ -1874,7 +1875,7 @@ static int pavail_rescan_ents __initdata; * memory list again, and make sure it provides at least as much * memory as 'pavail' does. */ -static void __init setup_valid_addr_bitmap_from_pavail(void) +static void __init setup_valid_addr_bitmap_from_pavail(unsigned long *bitmap) { int i; @@ -1897,8 +1898,7 @@ static void __init setup_valid_addr_bitmap_from_pavail(void) if (new_start <= old_start && new_end >= (old_start + PAGE_SIZE)) { - set_bit(old_start >> 22, - sparc64_valid_addr_bitmap); + set_bit(old_start >> 22, bitmap); goto do_next_page; } } @@ -1919,20 +1919,21 @@ static void __init setup_valid_addr_bitmap_from_pavail(void) } } +static void __init patch_tlb_miss_handler_bitmap(void) +{ + extern unsigned int valid_addr_bitmap_insn[]; + extern unsigned int valid_addr_bitmap_patch[]; + + valid_addr_bitmap_insn[1] = valid_addr_bitmap_patch[1]; + mb(); + valid_addr_bitmap_insn[0] = valid_addr_bitmap_patch[0]; + flushi(&valid_addr_bitmap_insn[0]); +} + void __init mem_init(void) { unsigned long codepages, datapages, initpages; unsigned long addr, last; - int i; - - i = last_valid_pfn >> ((22 - PAGE_SHIFT) + 6); - i += 1; - sparc64_valid_addr_bitmap = (unsigned long *) alloc_bootmem(i << 3); - if (sparc64_valid_addr_bitmap == NULL) { - prom_printf("mem_init: Cannot alloc valid_addr_bitmap.\n"); - prom_halt(); - } - memset(sparc64_valid_addr_bitmap, 0, i << 3); addr = PAGE_OFFSET + kern_base; last = PAGE_ALIGN(kern_size) + addr; @@ -1941,15 +1942,19 @@ void __init mem_init(void) addr += PAGE_SIZE; } - setup_valid_addr_bitmap_from_pavail(); + setup_valid_addr_bitmap_from_pavail(sparc64_valid_addr_bitmap); + patch_tlb_miss_handler_bitmap(); high_memory = __va(last_valid_pfn << PAGE_SHIFT); #ifdef CONFIG_NEED_MULTIPLE_NODES - for_each_online_node(i) { - if (NODE_DATA(i)->node_spanned_pages != 0) { - totalram_pages += - free_all_bootmem_node(NODE_DATA(i)); + { + int i; + for_each_online_node(i) { + if (NODE_DATA(i)->node_spanned_pages != 0) { + totalram_pages += + free_all_bootmem_node(NODE_DATA(i)); + } } } #else diff --git a/arch/sparc/mm/init_64.h b/arch/sparc/mm/init_64.h index 1606387..c2f772d 100644 --- a/arch/sparc/mm/init_64.h +++ b/arch/sparc/mm/init_64.h @@ -5,10 +5,13 @@ * marked non-static so that assembler code can get at them. */ -#define MAX_PHYS_ADDRESS (1UL << 42UL) -#define KPTE_BITMAP_CHUNK_SZ (256UL * 1024UL * 1024UL) +#define MAX_PHYS_ADDRESS (1UL << 41UL) +#define KPTE_BITMAP_CHUNK_SZ (256UL * 1024UL * 1024UL) #define KPTE_BITMAP_BYTES \ ((MAX_PHYS_ADDRESS / KPTE_BITMAP_CHUNK_SZ) / 8) +#define VALID_ADDR_BITMAP_CHUNK_SZ (4UL * 1024UL * 1024UL) +#define VALID_ADDR_BITMAP_BYTES \ + ((MAX_PHYS_ADDRESS / VALID_ADDR_BITMAP_CHUNK_SZ) / 8) extern unsigned long kern_linear_pte_xor[2]; extern unsigned long kpte_linear_bitmap[KPTE_BITMAP_BYTES / sizeof(unsigned long)]; -- cgit v0.10.2 From 730a9cfc2dcead5538c0c96a046000d97140b0c0 Mon Sep 17 00:00:00 2001 From: Alexander Beregalov Date: Tue, 25 Aug 2009 20:39:18 -0700 Subject: irda/au1k_ir: fix broken netdev_ops conversion This patch is based on commit d2f3ad4 (pxaficp-ir: remove incorrect net_device_ops). Do the same for au1k_ir. Untested. Signed-off-by: Alexander Beregalov Signed-off-by: David S. Miller diff --git a/drivers/net/irda/au1k_ir.c b/drivers/net/irda/au1k_ir.c index c4361d4..ee1cff5 100644 --- a/drivers/net/irda/au1k_ir.c +++ b/drivers/net/irda/au1k_ir.c @@ -23,7 +23,6 @@ #include #include #include -#include #include #include #include @@ -205,9 +204,6 @@ static const struct net_device_ops au1k_irda_netdev_ops = { .ndo_start_xmit = au1k_irda_hard_xmit, .ndo_tx_timeout = au1k_tx_timeout, .ndo_do_ioctl = au1k_irda_ioctl, - .ndo_change_mtu = eth_change_mtu, - .ndo_validate_addr = eth_validate_addr, - .ndo_set_mac_address = eth_mac_addr, }; static int au1k_irda_net_init(struct net_device *dev) -- cgit v0.10.2 From 4484b9c8b4976acee181d377f8ba571109d1a2be Mon Sep 17 00:00:00 2001 From: Alexander Beregalov Date: Tue, 25 Aug 2009 20:39:37 -0700 Subject: irda/sa1100_ir: fix broken netdev_ops conversion This patch is based on commit d2f3ad4 (pxaficp-ir: remove incorrect net_device_ops). Do the same for sa1100_ir. Untested. Signed-off-by: Alexander Beregalov Signed-off-by: David S. Miller diff --git a/drivers/net/irda/sa1100_ir.c b/drivers/net/irda/sa1100_ir.c index 2aeb2e6..b039cb0 100644 --- a/drivers/net/irda/sa1100_ir.c +++ b/drivers/net/irda/sa1100_ir.c @@ -24,7 +24,6 @@ #include #include #include -#include #include #include #include @@ -881,9 +880,6 @@ static const struct net_device_ops sa1100_irda_netdev_ops = { .ndo_stop = sa1100_irda_stop, .ndo_start_xmit = sa1100_irda_hard_xmit, .ndo_do_ioctl = sa1100_irda_ioctl, - .ndo_change_mtu = eth_change_mtu, - .ndo_validate_addr = eth_validate_addr, - .ndo_set_mac_address = eth_mac_addr, }; static int sa1100_irda_probe(struct platform_device *pdev) -- cgit v0.10.2 From d560bc61575efae43595cbcb56d0ba3b9450139c Mon Sep 17 00:00:00 2001 From: Jeremy Fitzhardinge Date: Tue, 25 Aug 2009 12:53:02 -0700 Subject: x86, xen: Suppress WP test on Xen Xen always runs on CPUs which properly support WP enforcement in privileged mode, so there's no need to test for it. This also works around a crash reported by Arnd Hannemann, though I think its just a band-aid for that case. Reported-by: Arnd Hannemann Signed-off-by: Jeremy Fitzhardinge Acked-by: Pekka Enberg Signed-off-by: H. Peter Anvin diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c index e90540a..0b755cd 100644 --- a/arch/x86/xen/enlighten.c +++ b/arch/x86/xen/enlighten.c @@ -1059,6 +1059,7 @@ asmlinkage void __init xen_start_kernel(void) /* set up basic CPUID stuff */ cpu_detect(&new_cpu_data); new_cpu_data.hard_math = 1; + new_cpu_data.wp_works_ok = 1; new_cpu_data.x86_capability[0] = cpuid_edx(1); #endif -- cgit v0.10.2 From 7adb4df410966dfe43e4815256e3215110648fb8 Mon Sep 17 00:00:00 2001 From: "H. Peter Anvin" Date: Tue, 25 Aug 2009 21:06:03 -0700 Subject: x86, xen: Initialize cx to suppress warning Initialize cx before calling xen_cpuid(), in order to suppress the "may be used uninitialized in this function" warning. Signed-off-by: H. Peter Anvin Cc: Jeremy Fitzhardinge diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c index 0b755cd..eb33aaa 100644 --- a/arch/x86/xen/enlighten.c +++ b/arch/x86/xen/enlighten.c @@ -215,6 +215,7 @@ static __init void xen_init_cpuid_mask(void) (1 << X86_FEATURE_ACPI)); /* disable ACPI */ ax = 1; + cx = 0; xen_cpuid(&ax, &bx, &cx, &dx); /* cpuid claims we support xsave; try enabling it to see what happens */ -- cgit v0.10.2 From 295594e9cf6ae2efd73371777aa8feba0f87f42f Mon Sep 17 00:00:00 2001 From: Yinghai Lu Date: Tue, 25 Aug 2009 13:44:44 -0700 Subject: x86: Fix vSMP boot crash 2.6.31-rc7 does not boot on vSMP systems: [ 8.501108] CPU31: Thermal monitoring enabled (TM1) [ 8.501127] CPU 31 MCA banks SHD:2 SHD:3 SHD:5 SHD:6 SHD:8 [ 8.650254] CPU31: Intel(R) Xeon(R) CPU E5540 @ 2.53GHz stepping 04 [ 8.710324] Brought up 32 CPUs [ 8.713916] Total of 32 processors activated (162314.96 BogoMIPS). [ 8.721489] ERROR: parent span is not a superset of domain->span [ 8.727686] ERROR: domain->groups does not contain CPU0 [ 8.733091] ERROR: groups don't span domain->span [ 8.737975] ERROR: domain->cpu_power not set [ 8.742416] Ravikiran Thirumalai bisected it to: | commit 2759c3287de27266e06f1f4e82cbd2d65f6a044c | x86: don't call read_apic_id if !cpu_has_apic The problem is that on vSMP systems the CPUID derived initial-APICIDs are overlapping - so we need to fall back on hard_smp_processor_id() which reads the local APIC. Both come from the hardware (influenced by firmware though) so it's a tough call which one to trust. Doing the quirk expresses the vSMP property properly and also does not affect other systems, so we go for this solution instead of a revert. Reported-and-Tested-by: Ravikiran Thirumalai Signed-off-by: Yinghai Lu Cc: Linus Torvalds Cc: Cyrill Gorcunov Cc: Shai Fultheim Cc: Suresh Siddha LKML-Reference: <4A944D3C.5030100@kernel.org> Signed-off-by: Ingo Molnar diff --git a/arch/x86/kernel/apic/probe_64.c b/arch/x86/kernel/apic/probe_64.c index bc3e880..fcec2f1 100644 --- a/arch/x86/kernel/apic/probe_64.c +++ b/arch/x86/kernel/apic/probe_64.c @@ -44,6 +44,11 @@ static struct apic *apic_probe[] __initdata = { NULL, }; +static int apicid_phys_pkg_id(int initial_apic_id, int index_msb) +{ + return hard_smp_processor_id() >> index_msb; +} + /* * Check the APIC IDs in bios_cpu_apicid and choose the APIC mode. */ @@ -69,6 +74,11 @@ void __init default_setup_apic_routing(void) printk(KERN_INFO "Setting APIC routing to %s\n", apic->name); } + if (is_vsmp_box()) { + /* need to update phys_pkg_id */ + apic->phys_pkg_id = apicid_phys_pkg_id; + } + /* * Now that apic routing model is selected, configure the * fault handling for intr remapping. -- cgit v0.10.2 From ced909ff048c9950e211783417f3c01361f3be28 Mon Sep 17 00:00:00 2001 From: Dmitry Torokhov Date: Tue, 25 Aug 2009 19:24:10 -0700 Subject: Input: i8042 - add Acer Aspire 5536 to the nomux list When KBC is in active multiplexing mode, disabling and re-enabling the touchpad with the special key leaves the touchpad dead. Since the laptop does not have any external PS/2 ports disabling MUX mode should be safe. Reported-by: Eugeniy Meshcheryakov Signed-off-by: Dmitry Torokhov diff --git a/drivers/input/serio/i8042-x86ia64io.h b/drivers/input/serio/i8042-x86ia64io.h index ae04d8a4..ccbf23e 100644 --- a/drivers/input/serio/i8042-x86ia64io.h +++ b/drivers/input/serio/i8042-x86ia64io.h @@ -382,6 +382,14 @@ static struct dmi_system_id __initdata i8042_dmi_nomux_table[] = { DMI_MATCH(DMI_PRODUCT_NAME, "Vostro1510"), }, }, + { + .ident = "Acer Aspire 5536", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Acer"), + DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5536"), + DMI_MATCH(DMI_PRODUCT_VERSION, "0100"), + }, + }, { } }; -- cgit v0.10.2 From 0b4f2928f14c4a9770b0866923fc81beb7f4aa57 Mon Sep 17 00:00:00 2001 From: Alexey Dobriyan Date: Wed, 26 Aug 2009 12:03:35 -0700 Subject: smc91x: fix compilation on SMP Signed-off-by: Alexey Dobriyan Signed-off-by: David S. Miller diff --git a/drivers/net/smc91x.c b/drivers/net/smc91x.c index 9da1fa1..7567f51 100644 --- a/drivers/net/smc91x.c +++ b/drivers/net/smc91x.c @@ -531,7 +531,7 @@ static inline void smc_rcv(struct net_device *dev) local_irq_restore(flags); \ __ret; \ }) -#define smc_special_lock(lock, flags) spin_lock_irq(lock, flags) +#define smc_special_lock(lock, flags) spin_lock_irqsave(lock, flags) #define smc_special_unlock(lock, flags) spin_unlock_irqrestore(lock, flags) #else #define smc_special_trylock(lock, flags) (1) -- cgit v0.10.2 From 3161e453e496eb5643faad30fff5a5ab183da0fe Mon Sep 17 00:00:00 2001 From: Rusty Russell Date: Wed, 26 Aug 2009 12:22:32 -0700 Subject: virtio: net refill on out-of-memory If we run out of memory, use keventd to fill the buffer. There's a report of this happening: "Page allocation failures in guest", Message-ID: <20090713115158.0a4892b0@mjolnir.ossman.eu> Signed-off-by: Rusty Russell Signed-off-by: David S. Miller diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c index 2a6e81d..bbedf03 100644 --- a/drivers/net/virtio_net.c +++ b/drivers/net/virtio_net.c @@ -70,6 +70,9 @@ struct virtnet_info struct sk_buff_head recv; struct sk_buff_head send; + /* Work struct for refilling if we run low on memory. */ + struct delayed_work refill; + /* Chain pages by the private ptr. */ struct page *pages; }; @@ -273,19 +276,22 @@ drop: dev_kfree_skb(skb); } -static void try_fill_recv_maxbufs(struct virtnet_info *vi) +static bool try_fill_recv_maxbufs(struct virtnet_info *vi, gfp_t gfp) { struct sk_buff *skb; struct scatterlist sg[2+MAX_SKB_FRAGS]; int num, err, i; + bool oom = false; sg_init_table(sg, 2+MAX_SKB_FRAGS); for (;;) { struct virtio_net_hdr *hdr; skb = netdev_alloc_skb(vi->dev, MAX_PACKET_LEN + NET_IP_ALIGN); - if (unlikely(!skb)) + if (unlikely(!skb)) { + oom = true; break; + } skb_reserve(skb, NET_IP_ALIGN); skb_put(skb, MAX_PACKET_LEN); @@ -296,7 +302,7 @@ static void try_fill_recv_maxbufs(struct virtnet_info *vi) if (vi->big_packets) { for (i = 0; i < MAX_SKB_FRAGS; i++) { skb_frag_t *f = &skb_shinfo(skb)->frags[i]; - f->page = get_a_page(vi, GFP_ATOMIC); + f->page = get_a_page(vi, gfp); if (!f->page) break; @@ -325,31 +331,35 @@ static void try_fill_recv_maxbufs(struct virtnet_info *vi) if (unlikely(vi->num > vi->max)) vi->max = vi->num; vi->rvq->vq_ops->kick(vi->rvq); + return !oom; } -static void try_fill_recv(struct virtnet_info *vi) +/* Returns false if we couldn't fill entirely (OOM). */ +static bool try_fill_recv(struct virtnet_info *vi, gfp_t gfp) { struct sk_buff *skb; struct scatterlist sg[1]; int err; + bool oom = false; - if (!vi->mergeable_rx_bufs) { - try_fill_recv_maxbufs(vi); - return; - } + if (!vi->mergeable_rx_bufs) + return try_fill_recv_maxbufs(vi, gfp); for (;;) { skb_frag_t *f; skb = netdev_alloc_skb(vi->dev, GOOD_COPY_LEN + NET_IP_ALIGN); - if (unlikely(!skb)) + if (unlikely(!skb)) { + oom = true; break; + } skb_reserve(skb, NET_IP_ALIGN); f = &skb_shinfo(skb)->frags[0]; - f->page = get_a_page(vi, GFP_ATOMIC); + f->page = get_a_page(vi, gfp); if (!f->page) { + oom = true; kfree_skb(skb); break; } @@ -373,6 +383,7 @@ static void try_fill_recv(struct virtnet_info *vi) if (unlikely(vi->num > vi->max)) vi->max = vi->num; vi->rvq->vq_ops->kick(vi->rvq); + return !oom; } static void skb_recv_done(struct virtqueue *rvq) @@ -385,6 +396,23 @@ static void skb_recv_done(struct virtqueue *rvq) } } +static void refill_work(struct work_struct *work) +{ + struct virtnet_info *vi; + bool still_empty; + + vi = container_of(work, struct virtnet_info, refill.work); + napi_disable(&vi->napi); + try_fill_recv(vi, GFP_KERNEL); + still_empty = (vi->num == 0); + napi_enable(&vi->napi); + + /* In theory, this can happen: if we don't get any buffers in + * we will *never* try to fill again. */ + if (still_empty) + schedule_delayed_work(&vi->refill, HZ/2); +} + static int virtnet_poll(struct napi_struct *napi, int budget) { struct virtnet_info *vi = container_of(napi, struct virtnet_info, napi); @@ -400,10 +428,10 @@ again: received++; } - /* FIXME: If we oom and completely run out of inbufs, we need - * to start a timer trying to fill more. */ - if (vi->num < vi->max / 2) - try_fill_recv(vi); + if (vi->num < vi->max / 2) { + if (!try_fill_recv(vi, GFP_ATOMIC)) + schedule_delayed_work(&vi->refill, 0); + } /* Out of packets? */ if (received < budget) { @@ -893,6 +921,7 @@ static int virtnet_probe(struct virtio_device *vdev) vi->vdev = vdev; vdev->priv = vi; vi->pages = NULL; + INIT_DELAYED_WORK(&vi->refill, refill_work); /* If they give us a callback when all buffers are done, we don't need * the timer. */ @@ -941,7 +970,7 @@ static int virtnet_probe(struct virtio_device *vdev) } /* Last of all, set up some receive buffers. */ - try_fill_recv(vi); + try_fill_recv(vi, GFP_KERNEL); /* If we didn't even get one input buffer, we're useless. */ if (vi->num == 0) { @@ -958,6 +987,7 @@ static int virtnet_probe(struct virtio_device *vdev) unregister: unregister_netdev(dev); + cancel_delayed_work_sync(&vi->refill); free_vqs: vdev->config->del_vqs(vdev); free: @@ -986,6 +1016,7 @@ static void virtnet_remove(struct virtio_device *vdev) BUG_ON(vi->num != 0); unregister_netdev(vi->dev); + cancel_delayed_work_sync(&vi->refill); vdev->config->del_vqs(vi->vdev); -- cgit v0.10.2 From 7515bf59f87f19b2a17972b74230d2f91756fe3c Mon Sep 17 00:00:00 2001 From: Hendrik Brueckner Date: Tue, 25 Aug 2009 14:31:11 +0200 Subject: tracing: Add syscall tracepoints - s390 arch update This patch includes s390 arch updates to synchronize with latest core changes in the syscalls tracing area. - tracing: Map syscall name to number (syscall_name_to_nr()) - tracing: Call arch_init_ftrace_syscalls at boot - tracing: add support tracepoint ids (set_syscall_{enter,exit}_id()) Signed-off-by: Hendrik Brueckner Cc: Jason Baron Cc: Frederic Weisbecker Cc: Ingo Molnar Cc: Lai Jiangshan Cc: Steven Rostedt Cc: Peter Zijlstra Cc: Mathieu Desnoyers Cc: Jiaying Zhang Cc: Martin Bligh Cc: Li Zefan Cc: Martin Schwidefsky Cc: Paul Mundt LKML-Reference: <20090825123111.GD4639@cetus.boeblingen.de.ibm.com> Signed-off-by: Frederic Weisbecker diff --git a/arch/s390/kernel/ftrace.c b/arch/s390/kernel/ftrace.c index 3e298e6..57bdcb1 100644 --- a/arch/s390/kernel/ftrace.c +++ b/arch/s390/kernel/ftrace.c @@ -220,6 +220,29 @@ struct syscall_metadata *syscall_nr_to_meta(int nr) return syscalls_metadata[nr]; } +int syscall_name_to_nr(char *name) +{ + int i; + + if (!syscalls_metadata) + return -1; + for (i = 0; i < NR_syscalls; i++) + if (syscalls_metadata[i]) + if (!strcmp(syscalls_metadata[i]->name, name)) + return i; + return -1; +} + +void set_syscall_enter_id(int num, int id) +{ + syscalls_metadata[num]->enter_id = id; +} + +void set_syscall_exit_id(int num, int id) +{ + syscalls_metadata[num]->exit_id = id; +} + static struct syscall_metadata *find_syscall_meta(unsigned long syscall) { struct syscall_metadata *start; @@ -237,24 +260,19 @@ static struct syscall_metadata *find_syscall_meta(unsigned long syscall) return NULL; } -void arch_init_ftrace_syscalls(void) +static int __init arch_init_ftrace_syscalls(void) { struct syscall_metadata *meta; int i; - static atomic_t refs; - - if (atomic_inc_return(&refs) != 1) - goto out; syscalls_metadata = kzalloc(sizeof(*syscalls_metadata) * NR_syscalls, GFP_KERNEL); if (!syscalls_metadata) - goto out; + return -ENOMEM; for (i = 0; i < NR_syscalls; i++) { meta = find_syscall_meta((unsigned long)sys_call_table[i]); syscalls_metadata[i] = meta; } - return; -out: - atomic_dec(&refs); + return 0; } +arch_initcall(arch_init_ftrace_syscalls); #endif -- cgit v0.10.2 From cd0980fc8add25e8ab12fcf1051c0f20cbc7c0c0 Mon Sep 17 00:00:00 2001 From: Hendrik Brueckner Date: Tue, 25 Aug 2009 14:50:27 +0200 Subject: tracing: Check invalid syscall nr while tracing syscalls Most arch syscall_get_nr() implementations returns -1 if the syscall number is not valid. Accessing the bit field without a check might result in a kernel oops (at least I saw it on s390 for ftrace selftest). Before this change, this problem did not occur, because the invalid syscall number (-1) caused syscall_nr_to_meta() to return NULL. There are at least two scenarios where syscall_get_nr() can return -1: 1. For example, ptrace stores an invalid syscall number, and thus, tracing code resets it. (see do_syscall_trace_enter in arch/s390/kernel/ptrace.c) 2. The syscall_regfunc() (kernel/tracepoint.c) sets the TIF_SYSCALL_FTRACE (now: TIF_SYSCALL_TRACEPOINT) flag for all threads which include kernel threads. However, the ftrace selftest triggers a kernel oops when testing syscall trace points: - The kernel thread is started as ususal (do_fork()), - tracing code sets TIF_SYSCALL_FTRACE, - the ret_from_fork() function is triggered and starts ftrace_syscall_exit() with an invalid syscall number. To avoid these scenarios, I suggest to check the syscall_nr. For instance, the ftrace selftest fails for s390 (with config option CONFIG_FTRACE_SYSCALLS set) and produces the following kernel oops. Unable to handle kernel pointer dereference at virtual kernel address 2000000000 Oops: 0038 [#1] PREEMPT SMP Modules linked in: CPU: 0 Not tainted 2.6.31-rc6-next-20090819-dirty #18 Process kthreadd (pid: 818, task: 000000003ea207e8, ksp: 000000003e813eb8) Krnl PSW : 0704100180000000 00000000000ea54c (ftrace_syscall_exit+0x58/0xdc) R:0 T:1 IO:1 EX:1 Key:0 M:1 W:0 P:0 AS:0 CC:1 PM:0 EA:3 Krnl GPRS: 0000000000000000 00000000000e0000 ffffffffffffffff 20000000008c2650 0000000000000007 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ffffffffffffffff 000000003e813d78 000000003e813f58 0000000000505ba8 000000003e813e18 000000003e813d78 Krnl Code: 00000000000ea540: e330d0000008 ag %r3,0(%r13) 00000000000ea546: a7480007 lhi %r4,7 00000000000ea54a: 1442 nr %r4,%r2 >00000000000ea54c: e31030000090 llgc %r1,0(%r3) 00000000000ea552: 5410d008 n %r1,8(%r13) 00000000000ea556: 8a104000 sra %r1,0(%r4) 00000000000ea55a: 5410d00c n %r1,12(%r13) 00000000000ea55e: 1211 ltr %r1,%r1 Call Trace: ([<0000000000000000>] 0x0) [<000000000001fa22>] do_syscall_trace_exit+0x132/0x18c [<000000000002d0c4>] sysc_return+0x0/0x8 [<000000000001c738>] kernel_thread_starter+0x0/0xc Last Breaking-Event-Address: [<00000000000ea51e>] ftrace_syscall_exit+0x2a/0xdc Signed-off-by: Hendrik Brueckner Acked-by: Heiko Carstens Cc: Jason Baron Cc: Frederic Weisbecker Cc: Ingo Molnar Cc: Lai Jiangshan Cc: Steven Rostedt Cc: Peter Zijlstra Cc: Mathieu Desnoyers Cc: Jiaying Zhang Cc: Martin Bligh Cc: Li Zefan Cc: Martin Schwidefsky Cc: Paul Mundt LKML-Reference: <20090825125027.GE4639@cetus.boeblingen.de.ibm.com> Signed-off-by: Frederic Weisbecker diff --git a/kernel/trace/trace_syscalls.c b/kernel/trace/trace_syscalls.c index 85291c4..cb7f600 100644 --- a/kernel/trace/trace_syscalls.c +++ b/kernel/trace/trace_syscalls.c @@ -227,6 +227,8 @@ void ftrace_syscall_enter(struct pt_regs *regs, long id) int syscall_nr; syscall_nr = syscall_get_nr(current, regs); + if (syscall_nr < 0) + return; if (!test_bit(syscall_nr, enabled_enter_syscalls)) return; @@ -257,6 +259,8 @@ void ftrace_syscall_exit(struct pt_regs *regs, long ret) int syscall_nr; syscall_nr = syscall_get_nr(current, regs); + if (syscall_nr < 0) + return; if (!test_bit(syscall_nr, enabled_exit_syscalls)) return; -- cgit v0.10.2 From cc3b13c11c567c69a6356be98d0c03ff11541d5c Mon Sep 17 00:00:00 2001 From: Hendrik Brueckner Date: Tue, 25 Aug 2009 18:02:37 +0200 Subject: tracing: Don't trace kernel thread syscalls Kernel threads don't call syscalls using the sysenter/sysexit path. Instead they directly call the sys_* or do_* functions that implement the syscalls inside the kernel. The current syscall tracepoints only bind the sysenter/sysexit path, then it has no effect to trace the kernel thread calls to syscalls in that path. Setting the TIF_SYSCALL_TRACEPOINT flag is then useless for these. Actually there is only one case when a kernel thread can reach the usual syscall exit tracing path: when we create a kernel thread, the child comes to ret_from_fork and is the fork() return is then traced. But this information alone is useless, then we don't want to set the TIF flags for these threads. Kernel threads have task_struct->mm set to NULL. (Thanks to Heiko for that hint ;-) The idea is then to check the mm field in syscall_regfunc() and set the flag accordingly. Signed-off-by: Hendrik Brueckner Cc: Jason Baron Cc: Frederic Weisbecker Cc: Ingo Molnar Cc: Lai Jiangshan Cc: Steven Rostedt Cc: Peter Zijlstra Cc: Mathieu Desnoyers Cc: Jiaying Zhang Cc: Martin Bligh Cc: Li Zefan Cc: Martin Schwidefsky Cc: Paul Mundt Cc: Heiko Carstens Cc: Hendrik Brueckner LKML-Reference: <20090825160237.GG4639@cetus.boeblingen.de.ibm.com> Signed-off-by: Frederic Weisbecker diff --git a/kernel/tracepoint.c b/kernel/tracepoint.c index 1a6a453..9489a0a 100644 --- a/kernel/tracepoint.c +++ b/kernel/tracepoint.c @@ -597,7 +597,9 @@ void syscall_regfunc(void) if (!sys_tracepoint_refcount) { read_lock_irqsave(&tasklist_lock, flags); do_each_thread(g, t) { - set_tsk_thread_flag(t, TIF_SYSCALL_TRACEPOINT); + /* Skip kernel threads. */ + if (t->mm) + set_tsk_thread_flag(t, TIF_SYSCALL_TRACEPOINT); } while_each_thread(g, t); read_unlock_irqrestore(&tasklist_lock, flags); } -- cgit v0.10.2 From dd86dda24cc1dc70031a7d9250dc3c0c430a50e2 Mon Sep 17 00:00:00 2001 From: Jason Baron Date: Mon, 24 Aug 2009 17:40:14 -0400 Subject: tracing: Define NR_syscalls for x86 (32) Add a NR_syscalls #define for x86. This is used in the syscall events tracing code. Todo: make it dynamic like x86_64. NR_syscalls is the usual name used to determine the number of syscalls supported by the current arch. We want to unify the use of this number across archs that support the syscall tracing. This also prepare to move some of the arch code to core code in the syscall tracing area. Signed-off-by: Jason Baron Cc: Paul Mundt Cc: Frederic Weisbecker Cc: Ingo Molnar Cc: Lai Jiangshan Cc: Steven Rostedt Cc: Peter Zijlstra Cc: Mathieu Desnoyers Cc: Jiaying Zhang Cc: Martin Bligh Cc: Li Zefan Cc: Josh Stone Cc: Thomas Gleixner Cc: H. Peter Anwin Cc: Hendrik Brueckner Cc: Heiko Carstens LKML-Reference: <0f33c0f96d198fccc3ddd9ff7f5334ff5cb42706.1251146513.git.jbaron@redhat.com> Signed-off-by: Frederic Weisbecker diff --git a/arch/x86/include/asm/unistd_32.h b/arch/x86/include/asm/unistd_32.h index 732a3070..8deaada 100644 --- a/arch/x86/include/asm/unistd_32.h +++ b/arch/x86/include/asm/unistd_32.h @@ -345,6 +345,8 @@ #ifdef __KERNEL__ +#define NR_syscalls 337 + #define __ARCH_WANT_IPC_PARSE_VERSION #define __ARCH_WANT_OLD_READDIR #define __ARCH_WANT_OLD_STAT -- cgit v0.10.2 From a5a2f8e2acb991327952c45a13f5441fc09dffd6 Mon Sep 17 00:00:00 2001 From: Jason Baron Date: Wed, 26 Aug 2009 12:09:10 -0400 Subject: tracing: Define NR_syscalls for x86_64 Express the available number of syscalls in a standard way by defining NR_syscalls. The common way to define it is to place its definition in asm/unistd.h However, the number of syscalls is defined using __NR_syscall_max in x86-64 after building a dynamic header file "asm-offsets.h" The source file that generates this header, asm-offsets-64.c includes unistd.h, then if we want to express NR_syscalls from __NR_syscall_max in unistd.h only after generating the dynamic header file, we need a watchguard. If unistd.h is included from asm-offsets-64.c, then we are generating asm-offset.h which defines __NR_syscall_max. At this time, we don't want to (we can't) define NR_syscalls, then we do nothing. Otherwise we define NR_syscalls because we know asm-offsets.h has been generated. Signed-off-by: Jason Baron Acked-by: Steven Rostedt Cc: Paul Mundt Cc: Frederic Weisbecker Cc: Ingo Molnar Cc: Lai Jiangshan Cc: Peter Zijlstra Cc: Mathieu Desnoyers Cc: Jiaying Zhang Cc: Martin Bligh Cc: Li Zefan Cc: Josh Stone Cc: Thomas Gleixner Cc: H. Peter Anwin Cc: Hendrik Brueckner Cc: Heiko Carstens LKML-Reference: <20090826160910.GB2658@redhat.com> Signed-off-by: Frederic Weisbecker diff --git a/arch/x86/include/asm/unistd_64.h b/arch/x86/include/asm/unistd_64.h index 900e161..b9f3c60 100644 --- a/arch/x86/include/asm/unistd_64.h +++ b/arch/x86/include/asm/unistd_64.h @@ -688,6 +688,12 @@ __SYSCALL(__NR_perf_counter_open, sys_perf_counter_open) #endif /* __NO_STUBS */ #ifdef __KERNEL__ + +#ifndef COMPILE_OFFSETS +#include +#define NR_syscalls (__NR_syscall_max + 1) +#endif + /* * "Conditional" syscalls * diff --git a/arch/x86/kernel/asm-offsets_64.c b/arch/x86/kernel/asm-offsets_64.c index 898ecc4..4a6aeed 100644 --- a/arch/x86/kernel/asm-offsets_64.c +++ b/arch/x86/kernel/asm-offsets_64.c @@ -3,6 +3,7 @@ * This code generates raw asm output which is post-processed to extract * and format the required data. */ +#define COMPILE_OFFSETS #include #include -- cgit v0.10.2 From 57421dbbdc932d65f0e6a41ebb027a2bfe3d0669 Mon Sep 17 00:00:00 2001 From: Jason Baron Date: Mon, 24 Aug 2009 17:40:22 -0400 Subject: tracing: Convert event tracing code to use NR_syscalls Convert the syscalls event tracing code to use NR_syscalls, instead of FTRACE_SYSCALL_MAX. NR_syscalls is standard accross most arches, and reduces code confusion/complexity. Signed-off-by: Jason Baron Cc: Paul Mundt Cc: Frederic Weisbecker Cc: Ingo Molnar Cc: Lai Jiangshan Cc: Steven Rostedt Cc: Peter Zijlstra Cc: Mathieu Desnoyers Cc: Jiaying Zhang Cc: Martin Bligh Cc: Li Zefan Cc: Josh Stone Cc: Thomas Gleixner Cc: H. Peter Anwin Cc: Hendrik Brueckner Cc: Heiko Carstens LKML-Reference: <9b4f1a84ecae57cc6599412772efa36f0d2b815b.1251146513.git.jbaron@redhat.com> Signed-off-by: Frederic Weisbecker diff --git a/arch/x86/kernel/ftrace.c b/arch/x86/kernel/ftrace.c index 3cff121..9dbb527 100644 --- a/arch/x86/kernel/ftrace.c +++ b/arch/x86/kernel/ftrace.c @@ -494,7 +494,7 @@ static struct syscall_metadata *find_syscall_meta(unsigned long *syscall) struct syscall_metadata *syscall_nr_to_meta(int nr) { - if (!syscalls_metadata || nr >= FTRACE_SYSCALL_MAX || nr < 0) + if (!syscalls_metadata || nr >= NR_syscalls || nr < 0) return NULL; return syscalls_metadata[nr]; @@ -507,7 +507,7 @@ int syscall_name_to_nr(char *name) if (!syscalls_metadata) return -1; - for (i = 0; i < FTRACE_SYSCALL_MAX; i++) { + for (i = 0; i < NR_syscalls; i++) { if (syscalls_metadata[i]) { if (!strcmp(syscalls_metadata[i]->name, name)) return i; @@ -533,13 +533,13 @@ static int __init arch_init_ftrace_syscalls(void) unsigned long **psys_syscall_table = &sys_call_table; syscalls_metadata = kzalloc(sizeof(*syscalls_metadata) * - FTRACE_SYSCALL_MAX, GFP_KERNEL); + NR_syscalls, GFP_KERNEL); if (!syscalls_metadata) { WARN_ON(1); return -ENOMEM; } - for (i = 0; i < FTRACE_SYSCALL_MAX; i++) { + for (i = 0; i < NR_syscalls; i++) { meta = find_syscall_meta(psys_syscall_table[i]); syscalls_metadata[i] = meta; } diff --git a/kernel/trace/trace_syscalls.c b/kernel/trace/trace_syscalls.c index cb7f600..4f5fae6 100644 --- a/kernel/trace/trace_syscalls.c +++ b/kernel/trace/trace_syscalls.c @@ -11,8 +11,8 @@ static DEFINE_MUTEX(syscall_trace_lock); static int sys_refcount_enter; static int sys_refcount_exit; -static DECLARE_BITMAP(enabled_enter_syscalls, FTRACE_SYSCALL_MAX); -static DECLARE_BITMAP(enabled_exit_syscalls, FTRACE_SYSCALL_MAX); +static DECLARE_BITMAP(enabled_enter_syscalls, NR_syscalls); +static DECLARE_BITMAP(enabled_exit_syscalls, NR_syscalls); enum print_line_t print_syscall_enter(struct trace_iterator *iter, int flags) @@ -289,7 +289,7 @@ int reg_event_syscall_enter(void *ptr) name = (char *)ptr; num = syscall_name_to_nr(name); - if (num < 0 || num >= FTRACE_SYSCALL_MAX) + if (num < 0 || num >= NR_syscalls) return -ENOSYS; mutex_lock(&syscall_trace_lock); if (!sys_refcount_enter) @@ -312,7 +312,7 @@ void unreg_event_syscall_enter(void *ptr) name = (char *)ptr; num = syscall_name_to_nr(name); - if (num < 0 || num >= FTRACE_SYSCALL_MAX) + if (num < 0 || num >= NR_syscalls) return; mutex_lock(&syscall_trace_lock); sys_refcount_enter--; @@ -330,7 +330,7 @@ int reg_event_syscall_exit(void *ptr) name = (char *)ptr; num = syscall_name_to_nr(name); - if (num < 0 || num >= FTRACE_SYSCALL_MAX) + if (num < 0 || num >= NR_syscalls) return -ENOSYS; mutex_lock(&syscall_trace_lock); if (!sys_refcount_exit) @@ -353,7 +353,7 @@ void unreg_event_syscall_exit(void *ptr) name = (char *)ptr; num = syscall_name_to_nr(name); - if (num < 0 || num >= FTRACE_SYSCALL_MAX) + if (num < 0 || num >= NR_syscalls) return; mutex_lock(&syscall_trace_lock); sys_refcount_exit--; @@ -373,8 +373,8 @@ struct trace_event event_syscall_exit = { #ifdef CONFIG_EVENT_PROFILE -static DECLARE_BITMAP(enabled_prof_enter_syscalls, FTRACE_SYSCALL_MAX); -static DECLARE_BITMAP(enabled_prof_exit_syscalls, FTRACE_SYSCALL_MAX); +static DECLARE_BITMAP(enabled_prof_enter_syscalls, NR_syscalls); +static DECLARE_BITMAP(enabled_prof_exit_syscalls, NR_syscalls); static int sys_prof_refcount_enter; static int sys_prof_refcount_exit; @@ -420,7 +420,7 @@ int reg_prof_syscall_enter(char *name) int num; num = syscall_name_to_nr(name); - if (num < 0 || num >= FTRACE_SYSCALL_MAX) + if (num < 0 || num >= NR_syscalls) return -ENOSYS; mutex_lock(&syscall_trace_lock); @@ -442,7 +442,7 @@ void unreg_prof_syscall_enter(char *name) int num; num = syscall_name_to_nr(name); - if (num < 0 || num >= FTRACE_SYSCALL_MAX) + if (num < 0 || num >= NR_syscalls) return; mutex_lock(&syscall_trace_lock); @@ -481,7 +481,7 @@ int reg_prof_syscall_exit(char *name) int num; num = syscall_name_to_nr(name); - if (num < 0 || num >= FTRACE_SYSCALL_MAX) + if (num < 0 || num >= NR_syscalls) return -ENOSYS; mutex_lock(&syscall_trace_lock); @@ -503,7 +503,7 @@ void unreg_prof_syscall_exit(char *name) int num; num = syscall_name_to_nr(name); - if (num < 0 || num >= FTRACE_SYSCALL_MAX) + if (num < 0 || num >= NR_syscalls) return; mutex_lock(&syscall_trace_lock); -- cgit v0.10.2 From 117226d15850387b55fd01675917ee4fcb9699e8 Mon Sep 17 00:00:00 2001 From: Jason Baron Date: Mon, 24 Aug 2009 17:40:26 -0400 Subject: tracing: Remove FTRACE_SYSCALL_MAX definitions Remove the FTRACE_SYSCALL_MAX definitions now that we have converted the syscall event tracing code to use NR_syscalls. Signed-off-by: Jason Baron Cc: Paul Mundt Cc: Frederic Weisbecker Cc: Ingo Molnar Cc: Lai Jiangshan Cc: Steven Rostedt Cc: Peter Zijlstra Cc: Mathieu Desnoyers Cc: Jiaying Zhang Cc: Martin Bligh Cc: Li Zefan Cc: Josh Stone Cc: Thomas Gleixner Cc: H. Peter Anwin Cc: Hendrik Brueckner Cc: Heiko Carstens LKML-Reference: Signed-off-by: Frederic Weisbecker diff --git a/arch/x86/include/asm/ftrace.h b/arch/x86/include/asm/ftrace.h index 7113654..db24c22 100644 --- a/arch/x86/include/asm/ftrace.h +++ b/arch/x86/include/asm/ftrace.h @@ -28,13 +28,6 @@ #endif -/* FIXME: I don't want to stay hardcoded */ -#ifdef CONFIG_X86_64 -# define FTRACE_SYSCALL_MAX 299 -#else -# define FTRACE_SYSCALL_MAX 337 -#endif - #ifdef CONFIG_FUNCTION_TRACER #define MCOUNT_ADDR ((long)(mcount)) #define MCOUNT_INSN_SIZE 5 /* sizeof mcount call */ -- cgit v0.10.2 From dac9ff79a8122b30176e23359bb879b3144d7f1f Mon Sep 17 00:00:00 2001 From: Roel Kluin Date: Wed, 17 Jun 2009 13:13:56 -0700 Subject: m68k: count can reach 51, not 50 With while (count++ < 50) { ... } count can reach 51, not 50, so we shouldn't give an error message on a count of 50. [akpm@linux-foundation.org: coding-style fixes] Signed-off-by: Roel Kluin Cc: Geert Uytterhoeven Signed-off-by: Andrew Morton Signed-off-by: Geert Uytterhoeven diff --git a/drivers/macintosh/via-maciisi.c b/drivers/macintosh/via-maciisi.c index 4d686c0..9ab5b0c 100644 --- a/drivers/macintosh/via-maciisi.c +++ b/drivers/macintosh/via-maciisi.c @@ -288,7 +288,7 @@ static void maciisi_sync(struct adb_request *req) } /* This could be BAD... when the ADB controller doesn't respond * for this long, it's probably not coming back :-( */ - if(count >= 50) /* Hopefully shouldn't happen */ + if (count > 50) /* Hopefully shouldn't happen */ printk(KERN_ERR "maciisi_send_request: poll timed out!\n"); } -- cgit v0.10.2 From dd9b3e84f2095ed19582f4df5d20e1e40c01ca3c Mon Sep 17 00:00:00 2001 From: Roel Kluin Date: Wed, 17 Jun 2009 13:13:57 -0700 Subject: m68k: cnt reaches -1, not 0 With the postfix decrement cnt reaches -1 rather than 0. Signed-off-by: Roel Kluin Cc: Geert Uytterhoeven Signed-off-by: Andrew Morton Signed-off-by: Geert Uytterhoeven diff --git a/arch/m68k/amiga/config.c b/arch/m68k/amiga/config.c index 6e56275..6c74751 100644 --- a/arch/m68k/amiga/config.c +++ b/arch/m68k/amiga/config.c @@ -574,10 +574,11 @@ static int a2000_hwclk(int op, struct rtc_time *t) tod_2000.cntrl1 = TOD2000_CNTRL1_HOLD; - while ((tod_2000.cntrl1 & TOD2000_CNTRL1_BUSY) && cnt--) { + while ((tod_2000.cntrl1 & TOD2000_CNTRL1_BUSY) && cnt) { tod_2000.cntrl1 &= ~TOD2000_CNTRL1_HOLD; udelay(70); tod_2000.cntrl1 |= TOD2000_CNTRL1_HOLD; + --cnt; } if (!cnt) @@ -649,10 +650,11 @@ static int amiga_set_clock_mmss(unsigned long nowtime) tod_2000.cntrl1 |= TOD2000_CNTRL1_HOLD; - while ((tod_2000.cntrl1 & TOD2000_CNTRL1_BUSY) && cnt--) { + while ((tod_2000.cntrl1 & TOD2000_CNTRL1_BUSY) && cnt) { tod_2000.cntrl1 &= ~TOD2000_CNTRL1_HOLD; udelay(70); tod_2000.cntrl1 |= TOD2000_CNTRL1_HOLD; + --cnt; } if (!cnt) -- cgit v0.10.2 From dc71c7d5dbd8cd8bb6e3b548ddc0454b64ded5f8 Mon Sep 17 00:00:00 2001 From: Andrew Morton Date: Wed, 17 Jun 2009 13:13:58 -0700 Subject: arch/m68k/include/asm/motorola_pgalloc.h: fix kunmap arg arch/m68k/include/asm/motorola_pgalloc.h: In function 'pte_alloc_one': arch/m68k/include/asm/motorola_pgalloc.h:44: warning: passing argument 1 of 'kunmap' from incompatible pointer type Also, remove unneeded test for kmap() failure. Signed-off-by: Andrew Morton Signed-off-by: Geert Uytterhoeven diff --git a/arch/m68k/include/asm/motorola_pgalloc.h b/arch/m68k/include/asm/motorola_pgalloc.h index 15ee4c7..2f02f26 100644 --- a/arch/m68k/include/asm/motorola_pgalloc.h +++ b/arch/m68k/include/asm/motorola_pgalloc.h @@ -36,12 +36,10 @@ static inline pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long addres return NULL; pte = kmap(page); - if (pte) { - __flush_page_to_ram(pte); - flush_tlb_kernel_page(pte); - nocache_page(pte); - } - kunmap(pte); + __flush_page_to_ram(pte); + flush_tlb_kernel_page(pte); + nocache_page(pte); + kunmap(page); pgtable_page_ctor(page); return page; } -- cgit v0.10.2 From 9fd926b4ab1e38ac5e3eb3ba0afb56726d90aa88 Mon Sep 17 00:00:00 2001 From: Alexey Dobriyan Date: Thu, 9 Jul 2009 17:08:38 +0400 Subject: m68k: Fix redefinition of pgprot_noncached arch/m68k/include/asm/pgtable_mm.h:148:1: warning: "pgprot_noncached" redefined In file included from arch/m68k/include/asm/pgtable_mm.h:138, from arch/m68k/include/asm/pgtable.h:4, from include/linux/mm.h:40, from include/linux/pagemap.h:7, from include/linux/blkdev.h:12, from arch/m68k/emu/nfblock.c:17: include/asm-generic/pgtable.h:133:1: warning: this is the location of the previous definition pgprot_noncached() should be defined _before_ including asm-generic/pgtable.h Signed-off-by: Alexey Dobriyan Signed-off-by: Geert Uytterhoeven diff --git a/arch/m68k/include/asm/pgtable_mm.h b/arch/m68k/include/asm/pgtable_mm.h index 0b604f0..fe60e1a 100644 --- a/arch/m68k/include/asm/pgtable_mm.h +++ b/arch/m68k/include/asm/pgtable_mm.h @@ -135,8 +135,6 @@ static inline void update_mmu_cache(struct vm_area_struct *vma, #endif #ifndef __ASSEMBLY__ -#include - /* * Macro to mark a page protection value as "uncacheable". */ @@ -154,6 +152,7 @@ static inline void update_mmu_cache(struct vm_area_struct *vma, ? (__pgprot((pgprot_val(prot) & _CACHEMASK040) | _PAGE_NOCACHE_S)) \ : (prot))) +#include #endif /* !__ASSEMBLY__ */ /* -- cgit v0.10.2 From 9848484fad9ddeb18f18f02f9ecdcd330ac9a216 Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Fri, 21 Aug 2009 22:03:54 +0200 Subject: m68k,m68knommu: Wire up rt_tgsigqueueinfo and perf_counter_open Signed-off-by: Geert Uytterhoeven Acked-by: Greg Ungerer diff --git a/arch/m68k/include/asm/unistd.h b/arch/m68k/include/asm/unistd.h index aa29a86..946d869 100644 --- a/arch/m68k/include/asm/unistd.h +++ b/arch/m68k/include/asm/unistd.h @@ -334,10 +334,12 @@ #define __NR_inotify_init1 328 #define __NR_preadv 329 #define __NR_pwritev 330 +#define __NR_rt_tgsigqueueinfo 331 +#define __NR_perf_counter_open 332 #ifdef __KERNEL__ -#define NR_syscalls 331 +#define NR_syscalls 333 #define __ARCH_WANT_IPC_PARSE_VERSION #define __ARCH_WANT_OLD_READDIR diff --git a/arch/m68k/kernel/entry.S b/arch/m68k/kernel/entry.S index 8744f60..c3735cd 100644 --- a/arch/m68k/kernel/entry.S +++ b/arch/m68k/kernel/entry.S @@ -755,4 +755,6 @@ sys_call_table: .long sys_inotify_init1 .long sys_preadv .long sys_pwritev /* 330 */ + .long sys_rt_tgsigqueueinfo + .long sys_perf_counter_open diff --git a/arch/m68knommu/kernel/syscalltable.S b/arch/m68knommu/kernel/syscalltable.S index c0b8782..0ae123e 100644 --- a/arch/m68knommu/kernel/syscalltable.S +++ b/arch/m68knommu/kernel/syscalltable.S @@ -349,6 +349,8 @@ ENTRY(sys_call_table) .long sys_inotify_init1 .long sys_preadv .long sys_pwritev /* 330 */ + .long sys_rt_tgsigqueueinfo + .long sys_perf_counter_open .rept NR_syscalls-(.-sys_call_table)/4 .long sys_ni_syscall -- cgit v0.10.2 From 53a7197aff20e341487fca8575275056fe1c63e5 Mon Sep 17 00:00:00 2001 From: Eric Paris Date: Wed, 26 Aug 2009 14:56:48 -0400 Subject: IMA: iint put in ima_counts_get and put ima_counts_get() calls ima_iint_find_insert_get() which takes a reference to the iint in question, but does not put that reference at the end of the function. This can lead to a nasty memory leak. Easy enough to reproduce: #include #include int main (void) { int i; void *ptr; for (i=0; i < 100000; i++) { ptr = mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_ANONYMOUS, -1, 0); if (ptr == MAP_FAILED) return 2; munmap(ptr, 4096); } return 0; } Signed-off-by: Eric Paris Signed-off-by: James Morris diff --git a/security/integrity/ima/ima_main.c b/security/integrity/ima/ima_main.c index 101c512..4732f5e 100644 --- a/security/integrity/ima/ima_main.c +++ b/security/integrity/ima/ima_main.c @@ -262,6 +262,8 @@ void ima_counts_put(struct path *path, int mask) else if (mask & (MAY_READ | MAY_EXEC)) iint->readcount--; mutex_unlock(&iint->mutex); + + kref_put(&iint->refcount, iint_free); } /* @@ -291,6 +293,8 @@ void ima_counts_get(struct file *file) if (file->f_mode & FMODE_WRITE) iint->writecount++; mutex_unlock(&iint->mutex); + + kref_put(&iint->refcount, iint_free); } EXPORT_SYMBOL_GPL(ima_counts_get); -- cgit v0.10.2 From 054b2b13ccba4876a1ce98a7ede7dab7d6893d01 Mon Sep 17 00:00:00 2001 From: Joonwoo Park Date: Wed, 26 Aug 2009 14:29:18 -0700 Subject: pps: fix incorrect verdict check Fix incorrect verdict check and returns error if device_create failed, otherwise driver triggers kernel oops. Signed-off-by: Joonwoo Park Cc: Rodolfo Giometti Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/drivers/pps/pps.c b/drivers/pps/pps.c index ac8cc8c..fea17e7 100644 --- a/drivers/pps/pps.c +++ b/drivers/pps/pps.c @@ -244,7 +244,7 @@ int pps_register_cdev(struct pps_device *pps) } pps->dev = device_create(pps_class, pps->info.dev, pps->devno, NULL, "pps%d", pps->id); - if (err) + if (IS_ERR(pps->dev)) goto del_cdev; dev_set_drvdata(pps->dev, pps); -- cgit v0.10.2 From a30b595d2ca6d39e784a1bed5f2b35f3d7a03af7 Mon Sep 17 00:00:00 2001 From: David Rientjes Date: Wed, 26 Aug 2009 14:29:20 -0700 Subject: flex_array: fix get function for elements in base starting at non-zero If all array elements fit into the base structure and data is copied using flex_array_put() starting at a non-zero index, flex_array_get() will fail to return the data. This fixes the bug by only checking for NULL parts when all elements do not fit in the base structure when flex_array_get() is used. Otherwise, fa_element_to_part_nr() will always be 0 since there are no parts structures needed and such element may never have been put. Thus, it will remain NULL due to the kzalloc() of the base. Additionally, flex_array_put() now only checks for a NULL part when all elements do not fit in the base structure. This is otherwise unnecessary since the base structure is guaranteed to exist (or we would have already hit a NULL pointer). Signed-off-by: David Rientjes Acked-by: Dave Hansen Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/lib/flex_array.c b/lib/flex_array.c index 08f1636..e73c691 100644 --- a/lib/flex_array.c +++ b/lib/flex_array.c @@ -198,10 +198,11 @@ int flex_array_put(struct flex_array *fa, int element_nr, void *src, gfp_t flags return -ENOSPC; if (elements_fit_in_base(fa)) part = (struct flex_array_part *)&fa->parts[0]; - else + else { part = __fa_get_part(fa, part_nr, flags); - if (!part) - return -ENOMEM; + if (!part) + return -ENOMEM; + } dst = &part->elements[index_inside_part(fa, element_nr)]; memcpy(dst, src, fa->element_size); return 0; @@ -257,11 +258,12 @@ void *flex_array_get(struct flex_array *fa, int element_nr) if (element_nr >= fa->total_nr_elements) return NULL; - if (!fa->parts[part_nr]) - return NULL; if (elements_fit_in_base(fa)) part = (struct flex_array_part *)&fa->parts[0]; - else + else { part = fa->parts[part_nr]; + if (!part) + return NULL; + } return &part->elements[index_inside_part(fa, element_nr)]; } -- cgit v0.10.2 From 105b6e8a74cac11cdf70903877593c7f202075cc Mon Sep 17 00:00:00 2001 From: David Rientjes Date: Wed, 26 Aug 2009 14:29:20 -0700 Subject: flex_array: fix flex_array_free_parts comment flex_array_free_parts() does not take `src' or `element_nr' formals, so remove their respective comments. Signed-off-by: David Rientjes Acked-by: Dave Hansen Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/lib/flex_array.c b/lib/flex_array.c index e73c691..cf4e372 100644 --- a/lib/flex_array.c +++ b/lib/flex_array.c @@ -122,9 +122,6 @@ static int fa_element_to_part_nr(struct flex_array *fa, int element_nr) /** * flex_array_free_parts - just free the second-level pages - * @src: address of data to copy into the array - * @element_nr: index of the position in which to insert - * the new element. * * This is to be used in cases where the base 'struct flex_array' * has been statically allocated and should not be free. -- cgit v0.10.2 From 8e7ee27095aee87b5db1b0061e2ceea5878a1bbd Mon Sep 17 00:00:00 2001 From: David Rientjes Date: Wed, 26 Aug 2009 14:29:21 -0700 Subject: flex_array: declare parts member to have incomplete type The `parts' member of struct flex_array should evaluate to an incomplete type so that sizeof() cannot be used and C99 does not require the zero-length specification. Signed-off-by: David Rientjes Acked-by: Dave Hansen Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/include/linux/flex_array.h b/include/linux/flex_array.h index 23c1ec7..603160d 100644 --- a/include/linux/flex_array.h +++ b/include/linux/flex_array.h @@ -21,7 +21,7 @@ struct flex_array { struct { int element_size; int total_nr_elements; - struct flex_array_part *parts[0]; + struct flex_array_part *parts[]; }; /* * This little trick makes sure that -- cgit v0.10.2 From b62e408c05228f40e69bb38a48db8961cac6cd23 Mon Sep 17 00:00:00 2001 From: David Rientjes Date: Wed, 26 Aug 2009 14:29:22 -0700 Subject: flex_array: convert element_nr formals to unsigned It's problematic to allow signed element_nr's or total's to be passed as part of the flex array API. flex_array_alloc() allows total_nr_elements to be set to a negative quantity, which is obviously erroneous. flex_array_get() and flex_array_put() allows negative array indices in dereferencing an array part, which could address memory mapped before struct flex_array. The fix is to convert all existing element_nr formals to be qualified as unsigned. Existing checks to compare it to total_nr_elements or the max array size based on element_size need not be changed. Signed-off-by: David Rientjes Cc: Dave Hansen Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/include/linux/flex_array.h b/include/linux/flex_array.h index 603160d..45ff184 100644 --- a/include/linux/flex_array.h +++ b/include/linux/flex_array.h @@ -36,12 +36,14 @@ struct flex_array { .total_nr_elements = (total), \ } } } -struct flex_array *flex_array_alloc(int element_size, int total, gfp_t flags); -int flex_array_prealloc(struct flex_array *fa, int start, int end, gfp_t flags); +struct flex_array *flex_array_alloc(int element_size, unsigned int total, + gfp_t flags); +int flex_array_prealloc(struct flex_array *fa, unsigned int start, + unsigned int end, gfp_t flags); void flex_array_free(struct flex_array *fa); void flex_array_free_parts(struct flex_array *fa); -int flex_array_put(struct flex_array *fa, int element_nr, void *src, +int flex_array_put(struct flex_array *fa, unsigned int element_nr, void *src, gfp_t flags); -void *flex_array_get(struct flex_array *fa, int element_nr); +void *flex_array_get(struct flex_array *fa, unsigned int element_nr); #endif /* _FLEX_ARRAY_H */ diff --git a/lib/flex_array.c b/lib/flex_array.c index cf4e372..7baed2f 100644 --- a/lib/flex_array.c +++ b/lib/flex_array.c @@ -99,7 +99,8 @@ static inline int elements_fit_in_base(struct flex_array *fa) * capacity in the base structure. Also note that no effort is made * to efficiently pack objects across page boundaries. */ -struct flex_array *flex_array_alloc(int element_size, int total, gfp_t flags) +struct flex_array *flex_array_alloc(int element_size, unsigned int total, + gfp_t flags) { struct flex_array *ret; int max_size = nr_base_part_ptrs() * __elements_per_part(element_size); @@ -115,7 +116,8 @@ struct flex_array *flex_array_alloc(int element_size, int total, gfp_t flags) return ret; } -static int fa_element_to_part_nr(struct flex_array *fa, int element_nr) +static int fa_element_to_part_nr(struct flex_array *fa, + unsigned int element_nr) { return element_nr / __elements_per_part(fa->element_size); } @@ -143,14 +145,12 @@ void flex_array_free(struct flex_array *fa) kfree(fa); } -static int fa_index_inside_part(struct flex_array *fa, int element_nr) +static unsigned int index_inside_part(struct flex_array *fa, + unsigned int element_nr) { - return element_nr % __elements_per_part(fa->element_size); -} + unsigned int part_offset; -static int index_inside_part(struct flex_array *fa, int element_nr) -{ - int part_offset = fa_index_inside_part(fa, element_nr); + part_offset = element_nr % __elements_per_part(fa->element_size); return part_offset * fa->element_size; } @@ -185,7 +185,8 @@ __fa_get_part(struct flex_array *fa, int part_nr, gfp_t flags) * * Locking must be provided by the caller. */ -int flex_array_put(struct flex_array *fa, int element_nr, void *src, gfp_t flags) +int flex_array_put(struct flex_array *fa, unsigned int element_nr, void *src, + gfp_t flags) { int part_nr = fa_element_to_part_nr(fa, element_nr); struct flex_array_part *part; @@ -217,7 +218,8 @@ int flex_array_put(struct flex_array *fa, int element_nr, void *src, gfp_t flags * * Locking must be provided by the caller. */ -int flex_array_prealloc(struct flex_array *fa, int start, int end, gfp_t flags) +int flex_array_prealloc(struct flex_array *fa, unsigned int start, + unsigned int end, gfp_t flags) { int start_part; int end_part; @@ -248,7 +250,7 @@ int flex_array_prealloc(struct flex_array *fa, int start, int end, gfp_t flags) * * Locking must be provided by the caller. */ -void *flex_array_get(struct flex_array *fa, int element_nr) +void *flex_array_get(struct flex_array *fa, unsigned int element_nr) { int part_nr = fa_element_to_part_nr(fa, element_nr); struct flex_array_part *part; -- cgit v0.10.2 From 03ef83af528899aa339e42d8024b37e2f434fba4 Mon Sep 17 00:00:00 2001 From: Minchan Kim Date: Wed, 26 Aug 2009 14:29:23 -0700 Subject: mm: fix for infinite churning of mlocked pages An mlocked page might lose the isolatation race. This causes the page to clear PG_mlocked while it remains in a VM_LOCKED vma. This means it can be put onto the [in]active list. We can rescue it by using try_to_unmap() in shrink_page_list(). But now, As Wu Fengguang pointed out, vmscan has a bug. If the page has PG_referenced, it can't reach try_to_unmap() in shrink_page_list() but is put into the active list. If the page is referenced repeatedly, it can remain on the [in]active list without being moving to the unevictable list. This patch fixes it. Reported-by: Wu Fengguang Signed-off-by: Minchan Kim Reviewed-by: KOSAKI Motohiro < Cc: Lee Schermerhorn Acked-by: Rik van Riel Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/mm/rmap.c b/mm/rmap.c index 836c6c6..0895b5c 100644 --- a/mm/rmap.c +++ b/mm/rmap.c @@ -358,6 +358,7 @@ static int page_referenced_one(struct page *page, */ if (vma->vm_flags & VM_LOCKED) { *mapcount = 1; /* break early from loop */ + *vm_flags |= VM_LOCKED; goto out_unmap; } diff --git a/mm/vmscan.c b/mm/vmscan.c index dea7abd..94e86dd 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -630,9 +630,14 @@ static unsigned long shrink_page_list(struct list_head *page_list, referenced = page_referenced(page, 1, sc->mem_cgroup, &vm_flags); - /* In active use or really unfreeable? Activate it. */ + /* + * In active use or really unfreeable? Activate it. + * If page which have PG_mlocked lost isoltation race, + * try_to_unmap moves it to unevictable list + */ if (sc->order <= PAGE_ALLOC_COSTLY_ORDER && - referenced && page_mapping_inuse(page)) + referenced && page_mapping_inuse(page) + && !(vm_flags & VM_LOCKED)) goto activate_locked; /* -- cgit v0.10.2 From 4ab6c08336535f8c8e42cf45d7adeda882eff06e Mon Sep 17 00:00:00 2001 From: Oleg Nesterov Date: Wed, 26 Aug 2009 14:29:24 -0700 Subject: clone(): fix race between copy_process() and de_thread() Spotted by Hiroshi Shimamoto who also provided the test-case below. copy_process() uses signal->count as a reference counter, but it is not. This test case #include #include #include #include #include #include void *null_thread(void *p) { for (;;) sleep(1); return NULL; } void *exec_thread(void *p) { execl("/bin/true", "/bin/true", NULL); return null_thread(p); } int main(int argc, char **argv) { for (;;) { pid_t pid; int ret, status; pid = fork(); if (pid < 0) break; if (!pid) { pthread_t tid; pthread_create(&tid, NULL, exec_thread, NULL); for (;;) pthread_create(&tid, NULL, null_thread, NULL); } do { ret = waitpid(pid, &status, 0); } while (ret == -1 && errno == EINTR); } return 0; } quickly creates an unkillable task. If copy_process(CLONE_THREAD) races with de_thread() copy_signal()->atomic(signal->count) breaks the signal->notify_count logic, and the execing thread can hang forever in kernel space. Change copy_process() to increment count/live only when we know for sure we can't fail. In this case the forked thread will take care of its reference to signal correctly. If copy_process() fails, check CLONE_THREAD flag. If it it set - do nothing, the counters were not changed and current belongs to the same thread group. If it is not set, ->signal must be released in any case (and ->count must be == 1), the forked child is the only thread in the thread group. We need more cleanups here, in particular signal->count should not be used by de_thread/__exit_signal at all. This patch only fixes the bug. Reported-by: Hiroshi Shimamoto Tested-by: Hiroshi Shimamoto Signed-off-by: Oleg Nesterov Acked-by: Roland McGrath Cc: KAMEZAWA Hiroyuki Cc: Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/kernel/fork.c b/kernel/fork.c index 144326b..e6c04d4 100644 --- a/kernel/fork.c +++ b/kernel/fork.c @@ -815,11 +815,8 @@ static int copy_signal(unsigned long clone_flags, struct task_struct *tsk) { struct signal_struct *sig; - if (clone_flags & CLONE_THREAD) { - atomic_inc(¤t->signal->count); - atomic_inc(¤t->signal->live); + if (clone_flags & CLONE_THREAD) return 0; - } sig = kmem_cache_alloc(signal_cachep, GFP_KERNEL); tsk->signal = sig; @@ -877,16 +874,6 @@ void __cleanup_signal(struct signal_struct *sig) kmem_cache_free(signal_cachep, sig); } -static void cleanup_signal(struct task_struct *tsk) -{ - struct signal_struct *sig = tsk->signal; - - atomic_dec(&sig->live); - - if (atomic_dec_and_test(&sig->count)) - __cleanup_signal(sig); -} - static void copy_flags(unsigned long clone_flags, struct task_struct *p) { unsigned long new_flags = p->flags; @@ -1239,6 +1226,8 @@ static struct task_struct *copy_process(unsigned long clone_flags, } if (clone_flags & CLONE_THREAD) { + atomic_inc(¤t->signal->count); + atomic_inc(¤t->signal->live); p->group_leader = current->group_leader; list_add_tail_rcu(&p->thread_group, &p->group_leader->thread_group); } @@ -1282,7 +1271,8 @@ bad_fork_cleanup_mm: if (p->mm) mmput(p->mm); bad_fork_cleanup_signal: - cleanup_signal(p); + if (!(clone_flags & CLONE_THREAD)) + __cleanup_signal(p->signal); bad_fork_cleanup_sighand: __cleanup_sighand(p->sighand); bad_fork_cleanup_fs: -- cgit v0.10.2 From 0d288162f2afc42b37aab656f4622c076babbca3 Mon Sep 17 00:00:00 2001 From: Michael Brunner Date: Wed, 26 Aug 2009 14:29:25 -0700 Subject: thermal_sys: check get_temp return value The return value of the get_temp function is not checked when doing a thermal zone update. This may lead to a critical shutdown if get_temp fails and the content of the temp variable is incorrectly set higher than the critical trip point. This has been observed on a system with incorrect ACPI implementation where the corresponding methods were not serialized and therefore sometimes triggered ACPI errors (AE_ALREADY_EXISTS). The following critical shutdowns indicated a temperature of 2097 C, which was obviously wrong. The patch adds a return value check that jumps over all trip point evaluations printing a warning if get_temp fails. The trip points are evaluated again on the next polling interval with successful get_temp execution. Signed-off-by: Michael Brunner Acked-by: Zhang Rui Cc: Len Brown Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/drivers/thermal/thermal_sys.c b/drivers/thermal/thermal_sys.c index 0a69672..4e83c29 100644 --- a/drivers/thermal/thermal_sys.c +++ b/drivers/thermal/thermal_sys.c @@ -953,7 +953,12 @@ void thermal_zone_device_update(struct thermal_zone_device *tz) mutex_lock(&tz->lock); - tz->ops->get_temp(tz, &temp); + if (tz->ops->get_temp(tz, &temp)) { + /* get_temp failed - retry it later */ + printk(KERN_WARNING PREFIX "failed to read out thermal zone " + "%d\n", tz->id); + goto leave; + } for (count = 0; count < tz->trips; count++) { tz->ops->get_trip_type(tz, count, &trip_type); @@ -1005,6 +1010,8 @@ void thermal_zone_device_update(struct thermal_zone_device *tz) THERMAL_TRIPS_NONE); tz->last_temperature = temp; + + leave: if (tz->passive) thermal_zone_device_set_polling(tz, tz->passive_delay); else if (tz->polling_delay) -- cgit v0.10.2 From ce8442b55135c679809311997d1446f3bbc05de2 Mon Sep 17 00:00:00 2001 From: Yinghai Lu Date: Wed, 26 Aug 2009 14:29:26 -0700 Subject: acpi: don't call acpi_processor_init if acpi is disabled Jens reported early_ioremap messages with old ASUS board... > [ 1.507461] pci 0000:00:09.0: Firmware left e100 interrupts enabled; disabling > [ 1.532778] early_ioremap(3fffd080, 0000005c) [0] => Pid: 1, comm: swapper Not tainted 2.6.31-rc4 #36 > [ 1.561007] Call Trace: > [ 1.568638] [] ? printk+0x18/0x1d > [ 1.581734] [] __early_ioremap+0x74/0x1e9 > [ 1.596898] [] early_ioremap+0x1a/0x1c > [ 1.611270] [] __acpi_map_table+0x18/0x1a > [ 1.626451] [] acpi_os_map_memory+0x1d/0x25 > [ 1.642129] [] acpi_tb_verify_table+0x20/0x49 > [ 1.658321] [] acpi_get_table_with_size+0x53/0xa1 > [ 1.675553] [] acpi_get_table+0x10/0x15 > [ 1.690192] [] acpi_processor_init+0x23/0xab > [ 1.706126] [] do_one_initcall+0x33/0x180 > [ 1.721279] [] ? acpi_processor_init+0x0/0xab > [ 1.737479] [] ? register_irq_proc+0xaa/0xc0 > [ 1.753411] [] ? init_irq_proc+0x67/0x80 > [ 1.768316] [] kernel_init+0x120/0x176 > [ 1.782678] [] ? kernel_init+0x0/0x176 > [ 1.797062] [] kernel_thread_helper+0x7/0x10 > [ 1.812984] 00000080 + ffe00000 that is rather later. acpi_gbl_permanent_mmap should be set in acpi_early_init() if acpi is not disabled and we have > [ 0.000000] ASUS P2B-DS detected: force use of acpi=ht just don't load acpi_processor_init... Reported-and-tested-by: Jens Rosenboom Signed-off-by: Yinghai Lu Acked-by: Ingo Molnar Cc: Len Brown Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/drivers/acpi/processor_core.c b/drivers/acpi/processor_core.c index 84e0f3c..2cc4b30 100644 --- a/drivers/acpi/processor_core.c +++ b/drivers/acpi/processor_core.c @@ -1151,6 +1151,9 @@ static int __init acpi_processor_init(void) { int result = 0; + if (acpi_disabled) + return 0; + memset(&errata, 0, sizeof(errata)); #ifdef CONFIG_SMP @@ -1197,6 +1200,9 @@ out_proc: static void __exit acpi_processor_exit(void) { + if (acpi_disabled) + return; + acpi_processor_ppc_exit(); acpi_thermal_cpufreq_exit(); -- cgit v0.10.2 From f3d83e2415445e5b157bef404d38674e9e8de169 Mon Sep 17 00:00:00 2001 From: Costantino Leandro Date: Wed, 26 Aug 2009 14:29:28 -0700 Subject: wmi: fix kernel panic when stack protection enabled. Summary: Kernel panic arise when stack protection is enabled, since strncat will add a null terminating byte '\0'; So in functions like this one (wmi_query_block): char wc[4]="WC"; .... strncat(method, block->object_id, 2); ... the length of wc should be n+1 (wc[5]) or stack protection fault will arise. This is not noticeable when stack protection is disabled,but , isn't good either. Config used: [CONFIG_CC_STACKPROTECTOR_ALL=y, CONFIG_CC_STACKPROTECTOR=y] Panic Trace ------------ .... stack-protector: kernel stack corrupted in : fa7b182c 2.6.30-rc8-obelisco-generic call_trace: [] ? panic+0x45/0xd9 [] ? __stack_chk_fail+0x1c/0x40 [] ? wmi_query_block+0x15a/0x162 [wmi] [] ? wmi_query_block+0x15a/0x162 [wmi] [] ? acer_wmi_init+0x00/0x61a [acer_wmi] [] ? acer_wmi_init+0x135/0x61a [acer_wmi] [] ? do_one_initcall+0x50+0x126 Addresses http://bugzilla.kernel.org/show_bug.cgi?id=13514 Signed-off-by: Costantino Leandro Signed-off-by: Carlos Corbacho Cc: Len Brown Cc: Bjorn Helgaas Cc: "Rafael J. Wysocki" Cc: Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/drivers/platform/x86/wmi.c b/drivers/platform/x86/wmi.c index 043b208..f215a59 100644 --- a/drivers/platform/x86/wmi.c +++ b/drivers/platform/x86/wmi.c @@ -270,7 +270,7 @@ u32 method_id, const struct acpi_buffer *in, struct acpi_buffer *out) acpi_status status; struct acpi_object_list input; union acpi_object params[3]; - char method[4] = "WM"; + char method[5] = "WM"; if (!find_guid(guid_string, &wblock)) return AE_ERROR; @@ -328,8 +328,8 @@ struct acpi_buffer *out) acpi_status status, wc_status = AE_ERROR; struct acpi_object_list input, wc_input; union acpi_object wc_params[1], wq_params[1]; - char method[4]; - char wc_method[4] = "WC"; + char method[5]; + char wc_method[5] = "WC"; if (!guid_string || !out) return AE_BAD_PARAMETER; @@ -410,7 +410,7 @@ const struct acpi_buffer *in) acpi_handle handle; struct acpi_object_list input; union acpi_object params[2]; - char method[4] = "WS"; + char method[5] = "WS"; if (!guid_string || !in) return AE_BAD_DATA; -- cgit v0.10.2 From 2a908002c7b1b666616103e9df2419b38d7c6f1f Mon Sep 17 00:00:00 2001 From: Frans Pop Date: Wed, 26 Aug 2009 14:29:29 -0700 Subject: ACPI processor: force throttling state when BIOS returns incorrect value If the BIOS reports an invalid throttling state (which seems to be fairly common after system boot), a reset is done to state T0. Because of a check in acpi_processor_get_throttling_ptc(), the reset never actually gets executed, which results in the error reoccurring on every access of for example /proc/acpi/processor/CPU0/throttling. Add a 'force' option to acpi_processor_set_throttling() to ensure the reset really takes effect. Addresses http://bugzilla.kernel.org/show_bug.cgi?id=13389 This patch, together with the next one, fixes a regression introduced in 2.6.30, listed on the regression list. They have been available for 2.5 months now in bugzilla, but have not been picked up, despite various reminders and without any reason given. Google shows that numerous people are hitting this issue. The issue is in itself relatively minor, but the bug in the code is clear. The patches have been in all my kernels and today testing has shown that throttling works correctly with the patches applied when the system overheats (http://bugzilla.kernel.org/show_bug.cgi?id=13918#c14). Signed-off-by: Frans Pop Acked-by: Zhang Rui Cc: Len Brown Cc: "Rafael J. Wysocki" Cc: Rusty Russell Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/drivers/acpi/processor_thermal.c b/drivers/acpi/processor_thermal.c index 39838c6..31adda1 100644 --- a/drivers/acpi/processor_thermal.c +++ b/drivers/acpi/processor_thermal.c @@ -66,7 +66,7 @@ static int acpi_processor_apply_limit(struct acpi_processor *pr) if (pr->limit.thermal.tx > tx) tx = pr->limit.thermal.tx; - result = acpi_processor_set_throttling(pr, tx); + result = acpi_processor_set_throttling(pr, tx, false); if (result) goto end; } @@ -421,12 +421,12 @@ processor_set_cur_state(struct thermal_cooling_device *cdev, if (state <= max_pstate) { if (pr->flags.throttling && pr->throttling.state) - result = acpi_processor_set_throttling(pr, 0); + result = acpi_processor_set_throttling(pr, 0, false); cpufreq_set_cur_state(pr->id, state); } else { cpufreq_set_cur_state(pr->id, max_pstate); result = acpi_processor_set_throttling(pr, - state - max_pstate); + state - max_pstate, false); } return result; } diff --git a/drivers/acpi/processor_throttling.c b/drivers/acpi/processor_throttling.c index 2275437..841be4e 100644 --- a/drivers/acpi/processor_throttling.c +++ b/drivers/acpi/processor_throttling.c @@ -62,7 +62,8 @@ struct throttling_tstate { #define THROTTLING_POSTCHANGE (2) static int acpi_processor_get_throttling(struct acpi_processor *pr); -int acpi_processor_set_throttling(struct acpi_processor *pr, int state); +int acpi_processor_set_throttling(struct acpi_processor *pr, + int state, bool force); static int acpi_processor_update_tsd_coord(void) { @@ -361,7 +362,7 @@ int acpi_processor_tstate_has_changed(struct acpi_processor *pr) */ target_state = throttling_limit; } - return acpi_processor_set_throttling(pr, target_state); + return acpi_processor_set_throttling(pr, target_state, false); } /* @@ -842,7 +843,7 @@ static int acpi_processor_get_throttling_ptc(struct acpi_processor *pr) ACPI_WARNING((AE_INFO, "Invalid throttling state, reset")); state = 0; - ret = acpi_processor_set_throttling(pr, state); + ret = acpi_processor_set_throttling(pr, state, true); if (ret) return ret; } @@ -915,7 +916,7 @@ static int acpi_processor_get_fadt_info(struct acpi_processor *pr) } static int acpi_processor_set_throttling_fadt(struct acpi_processor *pr, - int state) + int state, bool force) { u32 value = 0; u32 duty_mask = 0; @@ -930,7 +931,7 @@ static int acpi_processor_set_throttling_fadt(struct acpi_processor *pr, if (!pr->flags.throttling) return -ENODEV; - if (state == pr->throttling.state) + if (!force && (state == pr->throttling.state)) return 0; if (state < pr->throttling_platform_limit) @@ -988,7 +989,7 @@ static int acpi_processor_set_throttling_fadt(struct acpi_processor *pr, } static int acpi_processor_set_throttling_ptc(struct acpi_processor *pr, - int state) + int state, bool force) { int ret; acpi_integer value; @@ -1002,7 +1003,7 @@ static int acpi_processor_set_throttling_ptc(struct acpi_processor *pr, if (!pr->flags.throttling) return -ENODEV; - if (state == pr->throttling.state) + if (!force && (state == pr->throttling.state)) return 0; if (state < pr->throttling_platform_limit) @@ -1018,7 +1019,8 @@ static int acpi_processor_set_throttling_ptc(struct acpi_processor *pr, return 0; } -int acpi_processor_set_throttling(struct acpi_processor *pr, int state) +int acpi_processor_set_throttling(struct acpi_processor *pr, + int state, bool force) { cpumask_var_t saved_mask; int ret = 0; @@ -1070,7 +1072,7 @@ int acpi_processor_set_throttling(struct acpi_processor *pr, int state) /* FIXME: use work_on_cpu() */ set_cpus_allowed_ptr(current, cpumask_of(pr->id)); ret = p_throttling->acpi_processor_set_throttling(pr, - t_state.target_state); + t_state.target_state, force); } else { /* * When the T-state coordination is SW_ALL or HW_ALL, @@ -1103,7 +1105,7 @@ int acpi_processor_set_throttling(struct acpi_processor *pr, int state) set_cpus_allowed_ptr(current, cpumask_of(i)); ret = match_pr->throttling. acpi_processor_set_throttling( - match_pr, t_state.target_state); + match_pr, t_state.target_state, force); } } /* @@ -1201,7 +1203,7 @@ int acpi_processor_get_throttling_info(struct acpi_processor *pr) ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Disabling throttling (was T%d)\n", pr->throttling.state)); - result = acpi_processor_set_throttling(pr, 0); + result = acpi_processor_set_throttling(pr, 0, false); if (result) goto end; } @@ -1307,7 +1309,7 @@ static ssize_t acpi_processor_write_throttling(struct file *file, if (strcmp(tmpbuf, charp) != 0) return -EINVAL; - result = acpi_processor_set_throttling(pr, state_val); + result = acpi_processor_set_throttling(pr, state_val, false); if (result) return result; diff --git a/include/acpi/processor.h b/include/acpi/processor.h index baf1e0a..740ac3a 100644 --- a/include/acpi/processor.h +++ b/include/acpi/processor.h @@ -174,7 +174,7 @@ struct acpi_processor_throttling { cpumask_var_t shared_cpu_map; int (*acpi_processor_get_throttling) (struct acpi_processor * pr); int (*acpi_processor_set_throttling) (struct acpi_processor * pr, - int state); + int state, bool force); u32 address; u8 duty_offset; @@ -321,7 +321,8 @@ static inline int acpi_processor_ppc_has_changed(struct acpi_processor *pr) /* in processor_throttling.c */ int acpi_processor_tstate_has_changed(struct acpi_processor *pr); int acpi_processor_get_throttling_info(struct acpi_processor *pr); -extern int acpi_processor_set_throttling(struct acpi_processor *pr, int state); +extern int acpi_processor_set_throttling(struct acpi_processor *pr, + int state, bool force); extern const struct file_operations acpi_processor_throttling_fops; extern void acpi_processor_throttling_init(void); /* in processor_idle.c */ -- cgit v0.10.2 From bdf57de4e6abc389cc3f3bd94ec15cce74cf6f4b Mon Sep 17 00:00:00 2001 From: Frans Pop Date: Wed, 26 Aug 2009 14:29:30 -0700 Subject: acpi processor: remove superfluous warning message This failure is very common on many platforms. Handling it in the ACPI processor driver is enough, and we don't need a warning message unless CONFIG_ACPI_DEBUG is set. Based on a patch from Zhang Rui. Addresses http://bugzilla.kernel.org/show_bug.cgi?id=13389 Signed-off-by: Frans Pop Acked-by: Zhang Rui Cc: Len Brown Cc: "Rafael J. Wysocki" Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/drivers/acpi/processor_throttling.c b/drivers/acpi/processor_throttling.c index 841be4e..ae39797 100644 --- a/drivers/acpi/processor_throttling.c +++ b/drivers/acpi/processor_throttling.c @@ -840,8 +840,8 @@ static int acpi_processor_get_throttling_ptc(struct acpi_processor *pr) if (ret >= 0) { state = acpi_get_throttling_state(pr, value); if (state == -1) { - ACPI_WARNING((AE_INFO, - "Invalid throttling state, reset")); + ACPI_DEBUG_PRINT((ACPI_DB_INFO, + "Invalid throttling state, reset\n")); state = 0; ret = acpi_processor_set_throttling(pr, state, true); if (ret) -- cgit v0.10.2 From 48cccd26f36511ddb6aeca07485ecf2829683907 Mon Sep 17 00:00:00 2001 From: Thadeu Lima de Souza Cascardo Date: Wed, 26 Aug 2009 14:29:31 -0700 Subject: leds: fix multiple requests and releases of IRQ for GPIO LED Trigger When setting the same GPIO number, multiple IRQ shared requests will be done without freing the previous request. It will also try to free a failed request or an already freed IRQ if 0 was written to the gpio file. All these oops and leaks were fixed with the following solution: keep the previous allocated GPIO (if any) still allocated in case the new request fails. The alternative solution would desallocate the previous allocated GPIO and set gpio as 0. Signed-off-by: Thadeu Lima de Souza Cascardo Signed-off-by: Samuel R. C. Vale Cc: Richard Purdie Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/drivers/leds/ledtrig-gpio.c b/drivers/leds/ledtrig-gpio.c index a247ae6..8183b81f 100644 --- a/drivers/leds/ledtrig-gpio.c +++ b/drivers/leds/ledtrig-gpio.c @@ -146,20 +146,26 @@ static ssize_t gpio_trig_gpio_store(struct device *dev, return -EINVAL; } + if (gpio_data->gpio == gpio) + return n; + if (!gpio) { - free_irq(gpio_to_irq(gpio_data->gpio), led); + if (gpio_data->gpio != 0) + free_irq(gpio_to_irq(gpio_data->gpio), led); + gpio_data->gpio = 0; return n; } - if (gpio_data->gpio > 0 && gpio_data->gpio != gpio) - free_irq(gpio_to_irq(gpio_data->gpio), led); - - gpio_data->gpio = gpio; ret = request_irq(gpio_to_irq(gpio), gpio_trig_irq, IRQF_SHARED | IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING, "ledtrig-gpio", led); - if (ret) + if (ret) { dev_err(dev, "request_irq failed with error %d\n", ret); + } else { + if (gpio_data->gpio != 0) + free_irq(gpio_to_irq(gpio_data->gpio), led); + gpio_data->gpio = gpio; + } return ret ? ret : n; } @@ -211,7 +217,8 @@ static void gpio_trig_deactivate(struct led_classdev *led) device_remove_file(led->dev, &dev_attr_inverted); device_remove_file(led->dev, &dev_attr_desired_brightness); flush_work(&gpio_data->work); - free_irq(gpio_to_irq(gpio_data->gpio),led); + if (gpio_data->gpio != 0) + free_irq(gpio_to_irq(gpio_data->gpio), led); kfree(gpio_data); } } -- cgit v0.10.2 From cc674c81f01a6151ca00c617e5efa0812ee5fdbe Mon Sep 17 00:00:00 2001 From: Thadeu Lima de Souza Cascardo Date: Wed, 26 Aug 2009 14:29:32 -0700 Subject: leds: after setting inverted attribute, we must update the LED If we change the inverted attribute to another value, the LED will not be inverted until we change the GPIO state. Signed-off-by: Thadeu Lima de Souza Cascardo Cc: Samuel R. C. Vale Cc: Richard Purdie Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/drivers/leds/ledtrig-gpio.c b/drivers/leds/ledtrig-gpio.c index 8183b81f..1bc5db4 100644 --- a/drivers/leds/ledtrig-gpio.c +++ b/drivers/leds/ledtrig-gpio.c @@ -117,6 +117,9 @@ static ssize_t gpio_trig_inverted_store(struct device *dev, gpio_data->inverted = !!inverted; + /* After inverting, we need to update the LED. */ + schedule_work(&gpio_data->work); + return n; } static DEVICE_ATTR(inverted, 0644, gpio_trig_inverted_show, -- cgit v0.10.2 From 7b6a09f3d6aedeaac923824af2a5df30300b56e9 Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Sun, 23 Aug 2009 22:54:32 +0000 Subject: powerpc/ps3: Add missing check for PS3 to rtc-ps3 platform device registration On non-PS3, we get: | kernel BUG at drivers/rtc/rtc-ps3.c:36! because the rtc-ps3 platform device is registered unconditionally in a kernel with builtin support for PS3. Reported-by: Sachin Sant Signed-off-by: Geert Uytterhoeven Acked-by: Geoff Levand Signed-off-by: Benjamin Herrenschmidt diff --git a/arch/powerpc/platforms/ps3/time.c b/arch/powerpc/platforms/ps3/time.c index b178a1e..40b5cb4 100644 --- a/arch/powerpc/platforms/ps3/time.c +++ b/arch/powerpc/platforms/ps3/time.c @@ -21,6 +21,7 @@ #include #include +#include #include #include #include @@ -84,6 +85,9 @@ static int __init ps3_rtc_init(void) { struct platform_device *pdev; + if (!firmware_has_feature(FW_FEATURE_PS3_LV1)) + return -ENODEV; + pdev = platform_device_register_simple("rtc-ps3", -1, NULL, 0); if (IS_ERR(pdev)) return PTR_ERR(pdev); -- cgit v0.10.2 From b080f187adb79bbcbe28814b07cbc1ead34c469a Mon Sep 17 00:00:00 2001 From: Geoff Levand Date: Tue, 25 Aug 2009 07:53:35 +0000 Subject: powerpc/ps3: Update ps3_defconfig Update ps3_defconfig. o Refresh for 2.6.31. o Remove MTD support. o Add more HID drivers. Signed-off-by: Geoff Levand Signed-off-by: Benjamin Herrenschmidt diff --git a/arch/powerpc/configs/ps3_defconfig b/arch/powerpc/configs/ps3_defconfig index e28e65e..7de127e 100644 --- a/arch/powerpc/configs/ps3_defconfig +++ b/arch/powerpc/configs/ps3_defconfig @@ -1,13 +1,14 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.30-rc5 -# Fri May 15 10:37:00 2009 +# Linux kernel version: 2.6.31-rc7 +# Mon Aug 24 17:38:50 2009 # CONFIG_PPC64=y # # Processor support # +CONFIG_PPC_BOOK3S_64=y CONFIG_PPC_BOOK3S=y # CONFIG_POWER4_ONLY is not set CONFIG_POWER3=y @@ -20,6 +21,7 @@ CONFIG_PPC_STD_MMU=y CONFIG_PPC_STD_MMU_64=y CONFIG_PPC_MM_SLICES=y CONFIG_VIRT_CPU_ACCOUNTING=y +CONFIG_PPC_HAVE_PMU_SUPPORT=y CONFIG_SMP=y CONFIG_NR_CPUS=2 CONFIG_64BIT=y @@ -31,6 +33,7 @@ CONFIG_GENERIC_TIME=y CONFIG_GENERIC_TIME_VSYSCALL=y CONFIG_GENERIC_CLOCKEVENTS=y CONFIG_GENERIC_HARDIRQS=y +CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ=y CONFIG_HAVE_SETUP_PER_CPU_AREA=y CONFIG_IRQ_PER_CPU=y CONFIG_STACKTRACE_SUPPORT=y @@ -41,7 +44,6 @@ CONFIG_RWSEM_XCHGADD_ALGORITHM=y CONFIG_ARCH_HAS_ILOG2_U32=y CONFIG_ARCH_HAS_ILOG2_U64=y CONFIG_GENERIC_HWEIGHT=y -CONFIG_GENERIC_CALIBRATE_DELAY=y CONFIG_GENERIC_FIND_NEXT_BIT=y CONFIG_ARCH_NO_VIRT_TO_BUS=y CONFIG_PPC=y @@ -62,6 +64,7 @@ CONFIG_DTC=y # CONFIG_PPC_DCR_MMIO is not set CONFIG_ARCH_SUPPORTS_DEBUG_PAGEALLOC=y CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config" +CONFIG_CONSTRUCTORS=y # # General setup @@ -113,7 +116,6 @@ CONFIG_SYSCTL_SYSCALL=y CONFIG_KALLSYMS=y CONFIG_KALLSYMS_ALL=y CONFIG_KALLSYMS_EXTRA_PASS=y -# CONFIG_STRIP_ASM_SYMS is not set CONFIG_HOTPLUG=y CONFIG_PRINTK=y CONFIG_BUG=y @@ -126,7 +128,14 @@ CONFIG_TIMERFD=y CONFIG_EVENTFD=y CONFIG_SHMEM=y CONFIG_AIO=y +CONFIG_HAVE_PERF_COUNTERS=y + +# +# Performance Counters +# +# CONFIG_PERF_COUNTERS is not set CONFIG_VM_EVENT_COUNTERS=y +# CONFIG_STRIP_ASM_SYMS is not set # CONFIG_COMPAT_BRK is not set CONFIG_SLAB=y # CONFIG_SLUB is not set @@ -145,6 +154,11 @@ CONFIG_HAVE_KRETPROBES=y CONFIG_HAVE_ARCH_TRACEHOOK=y CONFIG_HAVE_DMA_ATTRS=y CONFIG_USE_GENERIC_SMP_HELPERS=y + +# +# GCOV-based kernel profiling +# +# CONFIG_GCOV_KERNEL is not set # CONFIG_SLOW_WORK is not set # CONFIG_HAVE_GENERIC_DMA_COHERENT is not set CONFIG_SLABINFO=y @@ -210,7 +224,7 @@ CONFIG_PPC_CELL=y # # Cell Broadband Engine options # -CONFIG_SPU_FS=y +CONFIG_SPU_FS=m CONFIG_SPU_FS_64K_LS=y # CONFIG_SPU_TRACE is not set CONFIG_SPU_BASE=y @@ -255,6 +269,7 @@ CONFIG_BINFMT_MISC=y CONFIG_HUGETLB_PAGE_SIZE_VARIABLE=y # CONFIG_IOMMU_VMERGE is not set CONFIG_IOMMU_HELPER=y +# CONFIG_SWIOTLB is not set CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y CONFIG_ARCH_HAS_WALK_MEMORY=y CONFIG_ARCH_ENABLE_MEMORY_HOTREMOVE=y @@ -285,9 +300,9 @@ CONFIG_MIGRATION=y CONFIG_PHYS_ADDR_T_64BIT=y CONFIG_ZONE_DMA_FLAG=1 CONFIG_BOUNCE=y -CONFIG_UNEVICTABLE_LRU=y CONFIG_HAVE_MLOCK=y CONFIG_HAVE_MLOCKED_PAGE_BIT=y +CONFIG_DEFAULT_MMAP_MIN_ADDR=4096 CONFIG_ARCH_MEMORY_PROBE=y CONFIG_PPC_HAS_HASH_64K=y CONFIG_PPC_4K_PAGES=y @@ -399,6 +414,7 @@ CONFIG_IPV6_NDISC_NODETYPE=y # CONFIG_ECONET is not set # CONFIG_WAN_ROUTER is not set # CONFIG_PHONET is not set +# CONFIG_IEEE802154 is not set # CONFIG_NET_SCHED is not set # CONFIG_DCB is not set @@ -433,11 +449,14 @@ CONFIG_BT_HCIBTUSB=m CONFIG_WIRELESS=y CONFIG_CFG80211=m # CONFIG_CFG80211_REG_DEBUG is not set +# CONFIG_CFG80211_DEBUGFS is not set # CONFIG_WIRELESS_OLD_REGULATORY is not set CONFIG_WIRELESS_EXT=y # CONFIG_WIRELESS_EXT_SYSFS is not set # CONFIG_LIB80211 is not set CONFIG_MAC80211=m +CONFIG_MAC80211_DEFAULT_PS=y +CONFIG_MAC80211_DEFAULT_PS_VALUE=1 # # Rate control algorithm selection @@ -447,7 +466,6 @@ CONFIG_MAC80211_RC_PID=y CONFIG_MAC80211_RC_DEFAULT_PID=y # CONFIG_MAC80211_RC_DEFAULT_MINSTREL is not set CONFIG_MAC80211_RC_DEFAULT="pid" -# CONFIG_MAC80211_MESH is not set # CONFIG_MAC80211_LEDS is not set # CONFIG_MAC80211_DEBUGFS is not set # CONFIG_MAC80211_DEBUG_MENU is not set @@ -472,77 +490,7 @@ CONFIG_EXTRA_FIRMWARE="" # CONFIG_DEBUG_DEVRES is not set # CONFIG_SYS_HYPERVISOR is not set # CONFIG_CONNECTOR is not set -CONFIG_MTD=y -CONFIG_MTD_DEBUG=y -CONFIG_MTD_DEBUG_VERBOSE=0 -# CONFIG_MTD_CONCAT is not set -# CONFIG_MTD_PARTITIONS is not set -# CONFIG_MTD_TESTS is not set - -# -# User Modules And Translation Layers -# -# CONFIG_MTD_CHAR is not set -CONFIG_MTD_BLKDEVS=y -CONFIG_MTD_BLOCK=y -# CONFIG_FTL is not set -# CONFIG_NFTL is not set -# CONFIG_INFTL is not set -# CONFIG_RFD_FTL is not set -# CONFIG_SSFDC is not set -# CONFIG_MTD_OOPS is not set - -# -# RAM/ROM/Flash chip drivers -# -# CONFIG_MTD_CFI is not set -# CONFIG_MTD_JEDECPROBE is not set -CONFIG_MTD_MAP_BANK_WIDTH_1=y -CONFIG_MTD_MAP_BANK_WIDTH_2=y -CONFIG_MTD_MAP_BANK_WIDTH_4=y -# CONFIG_MTD_MAP_BANK_WIDTH_8 is not set -# CONFIG_MTD_MAP_BANK_WIDTH_16 is not set -# CONFIG_MTD_MAP_BANK_WIDTH_32 is not set -CONFIG_MTD_CFI_I1=y -CONFIG_MTD_CFI_I2=y -# CONFIG_MTD_CFI_I4 is not set -# CONFIG_MTD_CFI_I8 is not set -# CONFIG_MTD_RAM is not set -# CONFIG_MTD_ROM is not set -# CONFIG_MTD_ABSENT is not set - -# -# Mapping drivers for chip access -# -# CONFIG_MTD_COMPLEX_MAPPINGS is not set -# CONFIG_MTD_PLATRAM is not set - -# -# Self-contained MTD device drivers -# -# CONFIG_MTD_SLRAM is not set -# CONFIG_MTD_PHRAM is not set -# CONFIG_MTD_MTDRAM is not set -# CONFIG_MTD_BLOCK2MTD is not set - -# -# Disk-On-Chip Device Drivers -# -# CONFIG_MTD_DOC2000 is not set -# CONFIG_MTD_DOC2001 is not set -# CONFIG_MTD_DOC2001PLUS is not set -# CONFIG_MTD_NAND is not set -# CONFIG_MTD_ONENAND is not set - -# -# LPDDR flash memory drivers -# -# CONFIG_MTD_LPDDR is not set - -# -# UBI - Unsorted block images -# -# CONFIG_MTD_UBI is not set +# CONFIG_MTD is not set CONFIG_OF_DEVICE=y # CONFIG_PARPORT is not set CONFIG_BLK_DEV=y @@ -590,10 +538,6 @@ CONFIG_BLK_DEV_SR=y # CONFIG_BLK_DEV_SR_VENDOR is not set CONFIG_CHR_DEV_SG=m # CONFIG_CHR_DEV_SCH is not set - -# -# Some SCSI devices (e.g. CD jukebox) support multiple LUNs -# CONFIG_SCSI_MULTI_LUN=y # CONFIG_SCSI_CONSTANTS is not set # CONFIG_SCSI_LOGGING is not set @@ -626,7 +570,6 @@ CONFIG_BLK_DEV_DM=m # CONFIG_DM_UEVENT is not set # CONFIG_MACINTOSH_DRIVERS is not set CONFIG_NETDEVICES=y -CONFIG_COMPAT_NET_DEV_OPS=y # CONFIG_DUMMY is not set # CONFIG_BONDING is not set # CONFIG_MACVLAN is not set @@ -646,10 +589,11 @@ CONFIG_MII=m # CONFIG_IBM_NEW_EMAC_MAL_CLR_ICINTSTAT is not set # CONFIG_IBM_NEW_EMAC_MAL_COMMON_ERR is not set # CONFIG_B44 is not set +# CONFIG_KS8842 is not set CONFIG_NETDEV_1000=y CONFIG_GELIC_NET=y CONFIG_GELIC_WIRELESS=y -CONFIG_GELIC_WIRELESS_OLD_PSK_INTERFACE=y +# CONFIG_GELIC_WIRELESS_OLD_PSK_INTERFACE is not set # CONFIG_NETDEV_10000 is not set # @@ -669,8 +613,7 @@ CONFIG_WLAN_80211=y # CONFIG_HOSTAP is not set # CONFIG_B43 is not set # CONFIG_B43LEGACY is not set -CONFIG_ZD1211RW=m -# CONFIG_ZD1211RW_DEBUG is not set +# CONFIG_ZD1211RW is not set # CONFIG_RT2X00 is not set # @@ -682,7 +625,7 @@ CONFIG_ZD1211RW=m # # CONFIG_USB_CATC is not set # CONFIG_USB_KAWETH is not set -CONFIG_USB_PEGASUS=m +# CONFIG_USB_PEGASUS is not set # CONFIG_USB_RTL8150 is not set CONFIG_USB_USBNET=m CONFIG_USB_NET_AX8817X=m @@ -693,10 +636,11 @@ CONFIG_USB_NET_AX8817X=m # CONFIG_USB_NET_GL620A is not set # CONFIG_USB_NET_NET1080 is not set # CONFIG_USB_NET_PLUSB is not set -CONFIG_USB_NET_MCS7830=m +# CONFIG_USB_NET_MCS7830 is not set # CONFIG_USB_NET_RNDIS_HOST is not set # CONFIG_USB_NET_CDC_SUBSET is not set # CONFIG_USB_NET_ZAURUS is not set +# CONFIG_USB_NET_INT51X1 is not set # CONFIG_WAN is not set CONFIG_PPP=m CONFIG_PPP_MULTILINK=y @@ -771,8 +715,7 @@ CONFIG_DEVKMEM=y # CONFIG_UNIX98_PTYS=y # CONFIG_DEVPTS_MULTIPLE_INSTANCES is not set -CONFIG_LEGACY_PTYS=y -CONFIG_LEGACY_PTY_COUNT=16 +# CONFIG_LEGACY_PTYS is not set # CONFIG_HVC_UDBG is not set # CONFIG_IPMI_HANDLER is not set # CONFIG_HW_RANDOM is not set @@ -782,6 +725,11 @@ CONFIG_LEGACY_PTY_COUNT=16 # CONFIG_TCG_TPM is not set # CONFIG_I2C is not set # CONFIG_SPI is not set + +# +# PPS support +# +# CONFIG_PPS is not set CONFIG_ARCH_WANT_OPTIONAL_GPIOLIB=y # CONFIG_GPIOLIB is not set # CONFIG_W1 is not set @@ -805,22 +753,7 @@ CONFIG_SSB_POSSIBLE=y # CONFIG_HTC_PASIC3 is not set # CONFIG_MFD_TMIO is not set # CONFIG_REGULATOR is not set - -# -# Multimedia devices -# - -# -# Multimedia core support -# -# CONFIG_VIDEO_DEV is not set -# CONFIG_DVB_CORE is not set -# CONFIG_VIDEO_MEDIA is not set - -# -# Multimedia drivers -# -# CONFIG_DAB is not set +# CONFIG_MEDIA_SUPPORT is not set # # Graphics support @@ -898,6 +831,11 @@ CONFIG_SND_SUPPORT_OLD_API=y CONFIG_SND_VERBOSE_PROCFS=y # CONFIG_SND_VERBOSE_PRINTK is not set # CONFIG_SND_DEBUG is not set +# CONFIG_SND_RAWMIDI_SEQ is not set +# CONFIG_SND_OPL3_LIB_SEQ is not set +# CONFIG_SND_OPL4_LIB_SEQ is not set +# CONFIG_SND_SBAWE_SEQ is not set +# CONFIG_SND_EMU10K1_SEQ is not set # CONFIG_SND_DRIVERS is not set CONFIG_SND_PPC=y CONFIG_SND_PS3=m @@ -930,29 +868,34 @@ CONFIG_USB_HIDDEV=y # Special HID drivers # # CONFIG_HID_A4TECH is not set -# CONFIG_HID_APPLE is not set -# CONFIG_HID_BELKIN is not set -# CONFIG_HID_CHERRY is not set +CONFIG_HID_APPLE=m +CONFIG_HID_BELKIN=m +CONFIG_HID_CHERRY=m # CONFIG_HID_CHICONY is not set # CONFIG_HID_CYPRESS is not set -# CONFIG_DRAGONRISE_FF is not set -# CONFIG_HID_EZKEY is not set +# CONFIG_HID_DRAGONRISE is not set +CONFIG_HID_EZKEY=m # CONFIG_HID_KYE is not set # CONFIG_HID_GYRATION is not set # CONFIG_HID_KENSINGTON is not set -# CONFIG_HID_LOGITECH is not set -# CONFIG_HID_MICROSOFT is not set +CONFIG_HID_LOGITECH=m +# CONFIG_LOGITECH_FF is not set +# CONFIG_LOGIRUMBLEPAD2_FF is not set +CONFIG_HID_MICROSOFT=m # CONFIG_HID_MONTEREY is not set # CONFIG_HID_NTRIG is not set # CONFIG_HID_PANTHERLORD is not set # CONFIG_HID_PETALYNX is not set # CONFIG_HID_SAMSUNG is not set CONFIG_HID_SONY=m -# CONFIG_HID_SUNPLUS is not set -# CONFIG_GREENASIA_FF is not set +CONFIG_HID_SUNPLUS=m +# CONFIG_HID_GREENASIA is not set +CONFIG_HID_SMARTJOYPLUS=m +# CONFIG_SMARTJOYPLUS_FF is not set # CONFIG_HID_TOPSEED is not set -# CONFIG_THRUSTMASTER_FF is not set -# CONFIG_ZEROPLUS_FF is not set +# CONFIG_HID_THRUSTMASTER is not set +# CONFIG_HID_WACOM is not set +# CONFIG_HID_ZEROPLUS is not set CONFIG_USB_SUPPORT=y CONFIG_USB_ARCH_HAS_HCD=y CONFIG_USB_ARCH_HAS_OHCI=y @@ -988,6 +931,8 @@ CONFIG_USB_EHCI_BIG_ENDIAN_MMIO=y # CONFIG_USB_ISP116X_HCD is not set # CONFIG_USB_ISP1760_HCD is not set CONFIG_USB_OHCI_HCD=m +# CONFIG_USB_OHCI_HCD_PPC_OF_BE is not set +# CONFIG_USB_OHCI_HCD_PPC_OF_LE is not set # CONFIG_USB_OHCI_HCD_PPC_OF is not set # CONFIG_USB_OHCI_BIG_ENDIAN_DESC is not set CONFIG_USB_OHCI_BIG_ENDIAN_MMIO=y @@ -1115,6 +1060,10 @@ CONFIG_RTC_DRV_PS3=m # CONFIG_DMADEVICES is not set # CONFIG_AUXDISPLAY is not set # CONFIG_UIO is not set + +# +# TI VLYNQ +# # CONFIG_STAGING is not set # @@ -1141,11 +1090,12 @@ CONFIG_FS_MBCACHE=y # CONFIG_REISERFS_FS is not set # CONFIG_JFS_FS is not set # CONFIG_FS_POSIX_ACL is not set -CONFIG_FILE_LOCKING=y # CONFIG_XFS_FS is not set # CONFIG_GFS2_FS is not set # CONFIG_OCFS2_FS is not set # CONFIG_BTRFS_FS is not set +CONFIG_FILE_LOCKING=y +CONFIG_FSNOTIFY=y CONFIG_DNOTIFY=y CONFIG_INOTIFY=y CONFIG_INOTIFY_USER=y @@ -1205,7 +1155,6 @@ CONFIG_MISC_FILESYSTEMS=y # CONFIG_BEFS_FS is not set # CONFIG_BFS_FS is not set # CONFIG_EFS_FS is not set -# CONFIG_JFFS2_FS is not set # CONFIG_CRAMFS is not set # CONFIG_SQUASHFS is not set # CONFIG_VXFS_FS is not set @@ -1222,6 +1171,7 @@ CONFIG_NFS_FS=y CONFIG_NFS_V3=y # CONFIG_NFS_V3_ACL is not set CONFIG_NFS_V4=y +# CONFIG_NFS_V4_1 is not set CONFIG_ROOT_NFS=y # CONFIG_NFSD is not set CONFIG_LOCKD=y @@ -1359,7 +1309,6 @@ CONFIG_DEBUG_MEMORY_INIT=y CONFIG_DEBUG_LIST=y # CONFIG_DEBUG_SG is not set # CONFIG_DEBUG_NOTIFIERS is not set -# CONFIG_BOOT_PRINTK_DELAY is not set # CONFIG_RCU_TORTURE_TEST is not set # CONFIG_RCU_CPU_STALL_DETECTOR is not set # CONFIG_BACKTRACE_SELF_TEST is not set @@ -1374,31 +1323,21 @@ CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y CONFIG_HAVE_DYNAMIC_FTRACE=y CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y CONFIG_RING_BUFFER=y +CONFIG_EVENT_TRACING=y +CONFIG_CONTEXT_SWITCH_TRACER=y CONFIG_TRACING=y CONFIG_TRACING_SUPPORT=y - -# -# Tracers -# -# CONFIG_FUNCTION_TRACER is not set -# CONFIG_IRQSOFF_TRACER is not set -# CONFIG_SCHED_TRACER is not set -# CONFIG_CONTEXT_SWITCH_TRACER is not set -# CONFIG_EVENT_TRACER is not set -# CONFIG_BOOT_TRACER is not set -# CONFIG_TRACE_BRANCH_PROFILING is not set -# CONFIG_STACK_TRACER is not set -# CONFIG_KMEMTRACE is not set -# CONFIG_WORKQUEUE_TRACER is not set -# CONFIG_BLK_DEV_IO_TRACE is not set -# CONFIG_FTRACE_STARTUP_TEST is not set +# CONFIG_FTRACE is not set # CONFIG_DYNAMIC_DEBUG is not set # CONFIG_SAMPLES is not set CONFIG_HAVE_ARCH_KGDB=y # CONFIG_KGDB is not set +# CONFIG_PPC_DISABLE_WERROR is not set +CONFIG_PPC_WERROR=y CONFIG_PRINT_STACK_DEPTH=64 CONFIG_DEBUG_STACKOVERFLOW=y # CONFIG_DEBUG_STACK_USAGE is not set +# CONFIG_PPC_EMULATED_STATS is not set # CONFIG_CODE_PATCHING_SELFTEST is not set # CONFIG_FTR_FIXUP_SELFTEST is not set # CONFIG_MSI_BITMAP_SELFTEST is not set -- cgit v0.10.2 From 52cef7555adf5ca09b3b7283097466759120d901 Mon Sep 17 00:00:00 2001 From: Eric Paris Date: Mon, 24 Aug 2009 16:03:35 -0400 Subject: inotify: seperate new watch creation updating existing watches There is nothing known wrong with the inotify watch addition/modification but this patch seperates the two code paths to make them each easy to verify as correct. Signed-off-by: Eric Paris diff --git a/fs/notify/inotify/inotify_user.c b/fs/notify/inotify/inotify_user.c index dc32ed8..d8f73c2 100644 --- a/fs/notify/inotify/inotify_user.c +++ b/fs/notify/inotify/inotify_user.c @@ -431,80 +431,29 @@ static void inotify_free_mark(struct fsnotify_mark_entry *entry) kmem_cache_free(inotify_inode_mark_cachep, ientry); } -static int inotify_update_watch(struct fsnotify_group *group, struct inode *inode, u32 arg) +static int inotify_update_existing_watch(struct fsnotify_group *group, + struct inode *inode, + u32 arg) { - struct fsnotify_mark_entry *entry = NULL; + struct fsnotify_mark_entry *entry; struct inotify_inode_mark_entry *ientry; - struct inotify_inode_mark_entry *tmp_ientry; - int ret = 0; - int add = (arg & IN_MASK_ADD); - __u32 mask; __u32 old_mask, new_mask; + __u32 mask; + int add = (arg & IN_MASK_ADD); + int ret; /* don't allow invalid bits: we don't want flags set */ mask = inotify_arg_to_mask(arg); if (unlikely(!mask)) return -EINVAL; - tmp_ientry = kmem_cache_alloc(inotify_inode_mark_cachep, GFP_KERNEL); - if (unlikely(!tmp_ientry)) - return -ENOMEM; - /* we set the mask at the end after attaching it */ - fsnotify_init_mark(&tmp_ientry->fsn_entry, inotify_free_mark); - tmp_ientry->wd = -1; - -find_entry: spin_lock(&inode->i_lock); entry = fsnotify_find_mark_entry(group, inode); spin_unlock(&inode->i_lock); - if (entry) { - ientry = container_of(entry, struct inotify_inode_mark_entry, fsn_entry); - } else { - ret = -ENOSPC; - if (atomic_read(&group->inotify_data.user->inotify_watches) >= inotify_max_user_watches) - goto out_err; -retry: - ret = -ENOMEM; - if (unlikely(!idr_pre_get(&group->inotify_data.idr, GFP_KERNEL))) - goto out_err; - - spin_lock(&group->inotify_data.idr_lock); - ret = idr_get_new_above(&group->inotify_data.idr, &tmp_ientry->fsn_entry, - group->inotify_data.last_wd, - &tmp_ientry->wd); - spin_unlock(&group->inotify_data.idr_lock); - if (ret) { - if (ret == -EAGAIN) - goto retry; - goto out_err; - } + if (!entry) + return -ENOENT; - ret = fsnotify_add_mark(&tmp_ientry->fsn_entry, group, inode); - if (ret) { - inotify_remove_from_idr(group, tmp_ientry); - if (ret == -EEXIST) - goto find_entry; - goto out_err; - } - - /* tmp_ientry has been added to the inode, so we are all set up. - * now we just need to make sure tmp_ientry doesn't get freed and - * we need to set up entry and ientry so the generic code can - * do its thing. */ - ientry = tmp_ientry; - entry = &ientry->fsn_entry; - tmp_ientry = NULL; - - atomic_inc(&group->inotify_data.user->inotify_watches); - - /* update the idr hint */ - group->inotify_data.last_wd = ientry->wd; - - /* we put the mark on the idr, take a reference */ - fsnotify_get_mark(entry); - } - - ret = ientry->wd; + ientry = container_of(entry, struct inotify_inode_mark_entry, fsn_entry); spin_lock(&entry->lock); @@ -536,18 +485,103 @@ retry: fsnotify_recalc_group_mask(group); } - /* this either matches fsnotify_find_mark_entry, or init_mark_entry - * depending on which path we took... */ + /* return the wd */ + ret = ientry->wd; + + /* match the get from fsnotify_find_mark_entry() */ fsnotify_put_mark(entry); + return ret; +} + +static int inotify_new_watch(struct fsnotify_group *group, + struct inode *inode, + u32 arg) +{ + struct inotify_inode_mark_entry *tmp_ientry; + __u32 mask; + int ret; + + /* don't allow invalid bits: we don't want flags set */ + mask = inotify_arg_to_mask(arg); + if (unlikely(!mask)) + return -EINVAL; + + tmp_ientry = kmem_cache_alloc(inotify_inode_mark_cachep, GFP_KERNEL); + if (unlikely(!tmp_ientry)) + return -ENOMEM; + + fsnotify_init_mark(&tmp_ientry->fsn_entry, inotify_free_mark); + tmp_ientry->fsn_entry.mask = mask; + tmp_ientry->wd = -1; + + ret = -ENOSPC; + if (atomic_read(&group->inotify_data.user->inotify_watches) >= inotify_max_user_watches) + goto out_err; +retry: + ret = -ENOMEM; + if (unlikely(!idr_pre_get(&group->inotify_data.idr, GFP_KERNEL))) + goto out_err; + + spin_lock(&group->inotify_data.idr_lock); + ret = idr_get_new_above(&group->inotify_data.idr, &tmp_ientry->fsn_entry, + group->inotify_data.last_wd, + &tmp_ientry->wd); + spin_unlock(&group->inotify_data.idr_lock); + if (ret) { + /* idr was out of memory allocate and try again */ + if (ret == -EAGAIN) + goto retry; + goto out_err; + } + + /* we are on the idr, now get on the inode */ + ret = fsnotify_add_mark(&tmp_ientry->fsn_entry, group, inode); + if (ret) { + /* we failed to get on the inode, get off the idr */ + inotify_remove_from_idr(group, tmp_ientry); + goto out_err; + } + + /* we put the mark on the idr, take a reference */ + fsnotify_get_mark(&tmp_ientry->fsn_entry); + + /* update the idr hint, who cares about races, it's just a hint */ + group->inotify_data.last_wd = tmp_ientry->wd; + + /* increment the number of watches the user has */ + atomic_inc(&group->inotify_data.user->inotify_watches); + + /* return the watch descriptor for this new entry */ + ret = tmp_ientry->wd; + + /* match the ref from fsnotify_init_markentry() */ + fsnotify_put_mark(&tmp_ientry->fsn_entry); + out_err: - /* could be an error, could be that we found an existing mark */ - if (tmp_ientry) { - /* on the idr but didn't make it on the inode */ - if (tmp_ientry->wd != -1) - inotify_remove_from_idr(group, tmp_ientry); + if (ret < 0) kmem_cache_free(inotify_inode_mark_cachep, tmp_ientry); - } + + return ret; +} + +static int inotify_update_watch(struct fsnotify_group *group, struct inode *inode, u32 arg) +{ + int ret = 0; + +retry: + /* try to update and existing watch with the new arg */ + ret = inotify_update_existing_watch(group, inode, arg); + /* no mark present, try to add a new one */ + if (ret == -ENOENT) + ret = inotify_new_watch(group, inode, arg); + /* + * inotify_new_watch could race with another thread which did an + * inotify_new_watch between the update_existing and the add watch + * here, go back and try to update an existing mark again. + */ + if (ret == -EEXIST) + goto retry; return ret; } -- cgit v0.10.2 From cf4374267fbe966e8e4e7db68f5dc7b267439780 Mon Sep 17 00:00:00 2001 From: Eric Paris Date: Mon, 24 Aug 2009 16:03:35 -0400 Subject: inotify: do not BUG on idr entries at inotify destruction If an inotify watch is left in the idr when an fsnotify group is destroyed this will lead to a BUG. This is not a dangerous situation and really indicates a programming bug and leak of memory. This patch changes it to use a WARN and a printk rather than killing people's boxes. Signed-off-by: Eric Paris diff --git a/fs/notify/inotify/inotify_fsnotify.c b/fs/notify/inotify/inotify_fsnotify.c index 5dcbafe..c9ee67b 100644 --- a/fs/notify/inotify/inotify_fsnotify.c +++ b/fs/notify/inotify/inotify_fsnotify.c @@ -105,16 +105,45 @@ static bool inotify_should_send_event(struct fsnotify_group *group, struct inode return send; } +/* + * This is NEVER supposed to be called. Inotify marks should either have been + * removed from the idr when the watch was removed or in the + * fsnotify_destroy_mark_by_group() call when the inotify instance was being + * torn down. This is only called if the idr is about to be freed but there + * are still marks in it. + */ static int idr_callback(int id, void *p, void *data) { - BUG(); + struct fsnotify_mark_entry *entry; + struct inotify_inode_mark_entry *ientry; + static bool warned = false; + + if (warned) + return 0; + + warned = false; + entry = p; + ientry = container_of(entry, struct inotify_inode_mark_entry, fsn_entry); + + WARN(1, "inotify closing but id=%d for entry=%p in group=%p still in " + "idr. Probably leaking memory\n", id, p, data); + + /* + * I'm taking the liberty of assuming that the mark in question is a + * valid address and I'm dereferencing it. This might help to figure + * out why we got here and the panic is no worse than the original + * BUG() that was here. + */ + if (entry) + printk(KERN_WARNING "entry->group=%p inode=%p wd=%d\n", + entry->group, entry->inode, ientry->wd); return 0; } static void inotify_free_group_priv(struct fsnotify_group *group) { /* ideally the idr is empty and we won't hit the BUG in teh callback */ - idr_for_each(&group->inotify_data.idr, idr_callback, NULL); + idr_for_each(&group->inotify_data.idr, idr_callback, group); idr_remove_all(&group->inotify_data.idr); idr_destroy(&group->inotify_data.idr); } -- cgit v0.10.2 From dead537dd8a1c9495322c1d6f7c780697f474af0 Mon Sep 17 00:00:00 2001 From: Eric Paris Date: Mon, 24 Aug 2009 16:03:35 -0400 Subject: inotify: fix locking around inotify watching in the idr The are races around the idr storage of inotify watches. It's possible that a watch could be found from sys_inotify_rm_watch() in the idr, but it could be removed from the idr before that code does it's removal. Move the locking and the refcnt'ing so that these have to happen atomically. Signed-off-by: Eric Paris diff --git a/fs/notify/inotify/inotify_user.c b/fs/notify/inotify/inotify_user.c index d8f73c2..ce1f582 100644 --- a/fs/notify/inotify/inotify_user.c +++ b/fs/notify/inotify/inotify_user.c @@ -364,20 +364,53 @@ static int inotify_find_inode(const char __user *dirname, struct path *path, uns return error; } +/* + * Remove the mark from the idr (if present) and drop the reference + * on the mark because it was in the idr. + */ static void inotify_remove_from_idr(struct fsnotify_group *group, struct inotify_inode_mark_entry *ientry) { struct idr *idr; + struct fsnotify_mark_entry *entry; + struct inotify_inode_mark_entry *found_ientry; + int wd; spin_lock(&group->inotify_data.idr_lock); idr = &group->inotify_data.idr; - idr_remove(idr, ientry->wd); - spin_unlock(&group->inotify_data.idr_lock); + wd = ientry->wd; + + if (wd == -1) + goto out; + + entry = idr_find(&group->inotify_data.idr, wd); + if (unlikely(!entry)) + goto out; + + found_ientry = container_of(entry, struct inotify_inode_mark_entry, fsn_entry); + if (unlikely(found_ientry != ientry)) { + /* We found an entry in the idr with the right wd, but it's + * not the entry we were told to remove. eparis seriously + * fucked up somewhere. */ + WARN_ON(1); + ientry->wd = -1; + goto out; + } + + /* One ref for being in the idr, one ref held by the caller */ + BUG_ON(atomic_read(&entry->refcnt) < 2); + + idr_remove(idr, wd); ientry->wd = -1; + + /* removed from the idr, drop that ref */ + fsnotify_put_mark(entry); +out: + spin_unlock(&group->inotify_data.idr_lock); } + /* - * Send IN_IGNORED for this wd, remove this wd from the idr, and drop the - * internal reference help on the mark because it is in the idr. + * Send IN_IGNORED for this wd, remove this wd from the idr. */ void inotify_ignored_and_remove_idr(struct fsnotify_mark_entry *entry, struct fsnotify_group *group) @@ -417,9 +450,6 @@ skip_send_ignore: /* remove this entry from the idr */ inotify_remove_from_idr(group, ientry); - /* removed from idr, drop that reference */ - fsnotify_put_mark(entry); - atomic_dec(&group->inotify_data.user->inotify_watches); } @@ -535,6 +565,9 @@ retry: goto out_err; } + /* we put the mark on the idr, take a reference */ + fsnotify_get_mark(&tmp_ientry->fsn_entry); + /* we are on the idr, now get on the inode */ ret = fsnotify_add_mark(&tmp_ientry->fsn_entry, group, inode); if (ret) { @@ -543,9 +576,6 @@ retry: goto out_err; } - /* we put the mark on the idr, take a reference */ - fsnotify_get_mark(&tmp_ientry->fsn_entry); - /* update the idr hint, who cares about races, it's just a hint */ group->inotify_data.last_wd = tmp_ientry->wd; -- cgit v0.10.2 From 0db501bd0610ee0c0aca84d927f90bcccd09e2bd Mon Sep 17 00:00:00 2001 From: "Eric W. Biederman" Date: Thu, 27 Aug 2009 03:20:04 -0700 Subject: inotify: Ensure we alwasy write the terminating NULL. Before the rewrite copy_event_to_user always wrote a terqminating '\0' byte to user space after the filename. Since the rewrite that terminating byte was skipped if your filename is exactly a multiple of event_size. Ouch! So add one byte to name_size before we round up and use clear_user to set userspace to zero like /dev/zero does instead of copying the strange nul_inotify_event. I can't quite convince myself len_to_zero will never exceed 16 and even if it doesn't clear_user should be more efficient and a more accurate reflection of what the code is trying to do. Signed-off-by: Eric W. Biederman Signed-off-by: Eric Paris diff --git a/fs/notify/inotify/inotify_user.c b/fs/notify/inotify/inotify_user.c index ce1f582..0e781bc 100644 --- a/fs/notify/inotify/inotify_user.c +++ b/fs/notify/inotify/inotify_user.c @@ -47,9 +47,6 @@ static struct vfsmount *inotify_mnt __read_mostly; -/* this just sits here and wastes global memory. used to just pad userspace messages with zeros */ -static struct inotify_event nul_inotify_event; - /* these are configurable via /proc/sys/fs/inotify/ */ static int inotify_max_user_instances __read_mostly; static int inotify_max_queued_events __read_mostly; @@ -199,8 +196,10 @@ static ssize_t copy_event_to_user(struct fsnotify_group *group, inotify_free_event_priv(fsn_priv); } - /* round up event->name_len so it is a multiple of event_size */ - name_len = roundup(event->name_len, event_size); + /* round up event->name_len so it is a multiple of event_size + * plus an extra byte for the terminating '\0'. + */ + name_len = roundup(event->name_len + 1, event_size); inotify_event.len = name_len; inotify_event.mask = inotify_mask_to_arg(event->mask); @@ -224,8 +223,8 @@ static ssize_t copy_event_to_user(struct fsnotify_group *group, return -EFAULT; buf += event->name_len; - /* fill userspace with 0's from nul_inotify_event */ - if (copy_to_user(buf, &nul_inotify_event, len_to_zero)) + /* fill userspace with 0's */ + if (clear_user(buf, len_to_zero)) return -EFAULT; buf += len_to_zero; event_size += name_len; -- cgit v0.10.2 From 6c347d43eea29221a8ebab9ff9cbe7a00cddac98 Mon Sep 17 00:00:00 2001 From: Frederic Weisbecker Date: Thu, 27 Aug 2009 18:17:34 +0200 Subject: tracing: Undef TRACE_EVENT_FN between trace events headers inclusion The recent commit: tracing/events: fix the include file dependencies fixed a file dependency problem while including more than one trace event header file. This fix undefined TRACE_EVENT after an event header macro preprocessing in order to make tracepoint.h able to correctly declare the tracepoints necessary for the next event header file. But now we also need to undefine TRACE_EVENT_FN at the end of an event header file preprocessing for the same reason. This fixes the following build error: In file included from include/trace/events/napi.h:5, from net/core/net-traces.c:28: include/linux/tracepoint.h:285:1: warning: "TRACE_EVENT_FN" redefined In file included from include/trace/define_trace.h:61, from include/trace/events/skb.h:40, from net/core/net-traces.c:27: include/trace/ftrace.h:50:1: warning: this is the location of the previous definition In file included from include/trace/events/napi.h:5, from net/core/net-traces.c:28: include/linux/tracepoint.h:285:1: warning: "TRACE_EVENT_FN" redefined In file included from include/trace/define_trace.h:61, from include/trace/events/skb.h:40, from net/core/net-traces.c:27: include/trace/ftrace.h:50:1: warning: this is the location of the previous definition Reported-by: Ingo Molnar Signed-off-by: Frederic Weisbecker Cc: Masami Hiramatsu Cc: Xiao Guangrong Cc: Steven Rostedt Cc: Li Zefan LKML-Reference: <20090827161732.GA7618@nowhere> Signed-off-by: Ingo Molnar diff --git a/include/trace/define_trace.h b/include/trace/define_trace.h index a89ed59..2a4b3bf 100644 --- a/include/trace/define_trace.h +++ b/include/trace/define_trace.h @@ -62,6 +62,7 @@ #endif #undef TRACE_EVENT +#undef TRACE_EVENT_FN #undef TRACE_HEADER_MULTI_READ /* Only undef what we defined in this file */ -- cgit v0.10.2 From 9886e836a6a5dbd273dc55b17e713f0a188d137f Mon Sep 17 00:00:00 2001 From: David Howells Date: Thu, 27 Aug 2009 13:09:06 +0100 Subject: AFS: Stop readlink() on AFS crashing due to NULL 'file' ptr kAFS crashes when asked to read a symbolic link because page_getlink() passes a NULL file pointer to read_mapping_page(), but afs_readpage() expects a file pointer from which to extract a key. Modify afs_readpage() to request the appropriate key from the calling process's keyrings if a file struct is not supplied with one attached. Signed-off-by: David Howells Acked-by: Anton Blanchard Signed-off-by: Linus Torvalds diff --git a/fs/afs/file.c b/fs/afs/file.c index 0149dab..681c2a7 100644 --- a/fs/afs/file.c +++ b/fs/afs/file.c @@ -134,9 +134,16 @@ static int afs_readpage(struct file *file, struct page *page) inode = page->mapping->host; - ASSERT(file != NULL); - key = file->private_data; - ASSERT(key != NULL); + if (file) { + key = file->private_data; + ASSERT(key != NULL); + } else { + key = afs_request_key(AFS_FS_S(inode->i_sb)->volume->cell); + if (IS_ERR(key)) { + ret = PTR_ERR(key); + goto error_nokey; + } + } _enter("{%x},{%lu},{%lu}", key_serial(key), inode->i_ino, page->index); @@ -207,12 +214,17 @@ static int afs_readpage(struct file *file, struct page *page) unlock_page(page); } + if (!file) + key_put(key); _leave(" = 0"); return 0; error: SetPageError(page); unlock_page(page); + if (!file) + key_put(key); +error_nokey: _leave(" = %d", ret); return ret; } -- cgit v0.10.2 From 788d908f2879a17e5f80924f3da2e23f1034482d Mon Sep 17 00:00:00 2001 From: Julien TINNES Date: Thu, 27 Aug 2009 15:26:58 +0200 Subject: ipv4: make ip_append_data() handle NULL routing table Add a check in ip_append_data() for NULL *rtp to prevent future bugs in callers from being exploitable. Signed-off-by: Julien Tinnes Signed-off-by: Tavis Ormandy Acked-by: David S. Miller Signed-off-by: Linus Torvalds diff --git a/net/ipv4/ip_output.c b/net/ipv4/ip_output.c index 7d08210..7ffcd96 100644 --- a/net/ipv4/ip_output.c +++ b/net/ipv4/ip_output.c @@ -813,6 +813,8 @@ int ip_append_data(struct sock *sk, inet->cork.addr = ipc->addr; } rt = *rtp; + if (unlikely(!rt)) + return -EFAULT; /* * We steal reference to this route, caller should not release it */ -- cgit v0.10.2 From 4f8ee2c9cc0e885d2bb50ef26db66150ab25213e Mon Sep 17 00:00:00 2001 From: Benjamin Herrenschmidt Date: Thu, 27 Aug 2009 17:20:30 +1000 Subject: lmb: Remove __init from lmb_end_of_DRAM() We call lmb_end_of_DRAM() to test whether a DMA mask is ok on a machine without IOMMU, but this function is marked as __init. I don't think there's a clean way to get the top of RAM max_pfn doesn't appear to include highmem or I missed (or we have a bug :-) so for now, let's just avoid having a broken 2.6.31 by making this function non-__init and we can revisit later. Signed-off-by: Benjamin Herrenschmidt Signed-off-by: Linus Torvalds diff --git a/lib/lmb.c b/lib/lmb.c index e4a6482..0343c05 100644 --- a/lib/lmb.c +++ b/lib/lmb.c @@ -429,7 +429,7 @@ u64 __init lmb_phys_mem_size(void) return lmb.memory.size; } -u64 __init lmb_end_of_DRAM(void) +u64 lmb_end_of_DRAM(void) { int idx = lmb.memory.cnt - 1; -- cgit v0.10.2 From 0a80fb10239b04c45e5e80aad8d4b2ca5ac407b2 Mon Sep 17 00:00:00 2001 From: Jeremy Fitzhardinge Date: Thu, 27 Aug 2009 12:22:43 -0700 Subject: xenfb: connect to backend before registering fb As soon as the framebuffer is registered, our methods may be called by the kernel. This leads to a crash as xenfb_refresh() gets called before we have the irq. Connect to the backend before registering our framebuffer with the kernel. [ Fixes bug http://bugzilla.kernel.org/show_bug.cgi?id=14059 ] Signed-off-by: Michal Schmidt Signed-off-by: Jeremy Fitzhardinge Signed-off-by: Linus Torvalds diff --git a/drivers/video/xen-fbfront.c b/drivers/video/xen-fbfront.c index 15502d5..54cd916 100644 --- a/drivers/video/xen-fbfront.c +++ b/drivers/video/xen-fbfront.c @@ -454,6 +454,10 @@ static int __devinit xenfb_probe(struct xenbus_device *dev, xenfb_init_shared_page(info, fb_info); + ret = xenfb_connect_backend(dev, info); + if (ret < 0) + goto error; + ret = register_framebuffer(fb_info); if (ret) { fb_deferred_io_cleanup(fb_info); @@ -464,10 +468,6 @@ static int __devinit xenfb_probe(struct xenbus_device *dev, } info->fb_info = fb_info; - ret = xenfb_connect_backend(dev, info); - if (ret < 0) - goto error; - xenfb_make_preferred_console(); return 0; -- cgit v0.10.2 From 7d1d16e416e61aeef8655d542f8e4a4fc6e808e4 Mon Sep 17 00:00:00 2001 From: Rusty Russell Date: Wed, 26 Aug 2009 22:02:54 +0930 Subject: module: fix BUG_ON() for powerpc (and other function descriptor archs) The rarely-used symbol_put_addr() needs to use dereference_function_descriptor on powerpc. Reported-by: Paul Mackerras Signed-off-by: Rusty Russell diff --git a/kernel/module.c b/kernel/module.c index fd14114..07c80e6 100644 --- a/kernel/module.c +++ b/kernel/module.c @@ -909,16 +909,18 @@ void __symbol_put(const char *symbol) } EXPORT_SYMBOL(__symbol_put); +/* Note this assumes addr is a function, which it currently always is. */ void symbol_put_addr(void *addr) { struct module *modaddr; + unsigned long a = (unsigned long)dereference_function_descriptor(addr); - if (core_kernel_text((unsigned long)addr)) + if (core_kernel_text(a)) return; /* module_text_address is safe here: we're supposed to have reference * to module from symbol_get, so it can't go away. */ - modaddr = __module_text_address((unsigned long)addr); + modaddr = __module_text_address(a); BUG_ON(!modaddr); module_put(modaddr); } -- cgit v0.10.2 From 1b364bf438cf337a3818aee77d68c0713f3e1fc4 Mon Sep 17 00:00:00 2001 From: James Bottomley Date: Wed, 26 Aug 2009 22:04:12 +0930 Subject: module: workaround duplicate section names The root cause is a duplicate section name (.text); is this legal? [ Amerigo Wang: "AFAIK, yes." ] However, there's a problem with commit 6d76013381ed28979cd122eb4b249a88b5e384fa in that if you fail to allocate a mod->sect_attrs (in this case it's null because of the duplication), it still gets used without checking in add_notes_attrs() This should fix it [ This patch leaves other problems, particularly the sections directory, but recent parisc toolchains seem to produce these modules and this prevents a crash and is a minimal change -- RR ] Signed-off-by: James Bottomley Signed-off-by: Rusty Russell Tested-by: Helge Deller Signed-off-by: Linus Torvalds diff --git a/kernel/module.c b/kernel/module.c index 07c80e6..eccb561 100644 --- a/kernel/module.c +++ b/kernel/module.c @@ -2355,7 +2355,8 @@ static noinline struct module *load_module(void __user *umod, if (err < 0) goto unlink; add_sect_attrs(mod, hdr->e_shnum, secstrings, sechdrs); - add_notes_attrs(mod, hdr->e_shnum, secstrings, sechdrs); + if (mod->sect_attrs) + add_notes_attrs(mod, hdr->e_shnum, secstrings, sechdrs); /* Get rid of temporary copy */ vfree(hdr); -- cgit v0.10.2 From c0729be99cb2b9d9749256254f1c40a801835896 Mon Sep 17 00:00:00 2001 From: Steven Rostedt Date: Wed, 26 Aug 2009 22:23:52 -0400 Subject: tracing: remove legacy select of MARKERS by context switch tracing The context switch tracer was made before tracepoints were mature, and the original version used markers. This is no longer true and this patch removes the select. Reported-by: Thomas Gleixner Signed-off-by: Steven Rostedt diff --git a/kernel/trace/Kconfig b/kernel/trace/Kconfig index 06be85a..163fbfc 100644 --- a/kernel/trace/Kconfig +++ b/kernel/trace/Kconfig @@ -60,7 +60,6 @@ config EVENT_TRACING bool config CONTEXT_SWITCH_TRACER - select MARKERS bool # All tracer options should select GENERIC_TRACER. For those options that are -- cgit v0.10.2 From 5d4a9dba2d7fbab69f00dedd430d1788834a055a Mon Sep 17 00:00:00 2001 From: Steven Rostedt Date: Thu, 27 Aug 2009 16:52:21 -0400 Subject: tracing: only show tracing_max_latency when latency tracer configured The tracing_max_latency file should only be present when one of the latency tracers ({preempt|irqs}off, wakeup*) are enabled. This patch also removes tracing_thresh when latency tracers are not enabled, as well as compiles out code that is only used for latency tracers. Reported-by: Arnaldo Carvalho de Melo Signed-off-by: Steven Rostedt diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c index 63dbc7f..0f08816 100644 --- a/kernel/trace/trace.c +++ b/kernel/trace/trace.c @@ -43,9 +43,6 @@ #define TRACE_BUFFER_FLAGS (RB_FL_OVERWRITE) -unsigned long __read_mostly tracing_max_latency; -unsigned long __read_mostly tracing_thresh; - /* * On boot up, the ring buffer is set to the minimum size, so that * we do not waste memory on systems that are not using tracing. @@ -338,45 +335,6 @@ static struct { int trace_clock_id; -/* - * ftrace_max_lock is used to protect the swapping of buffers - * when taking a max snapshot. The buffers themselves are - * protected by per_cpu spinlocks. But the action of the swap - * needs its own lock. - * - * This is defined as a raw_spinlock_t in order to help - * with performance when lockdep debugging is enabled. - */ -static raw_spinlock_t ftrace_max_lock = - (raw_spinlock_t)__RAW_SPIN_LOCK_UNLOCKED; - -/* - * Copy the new maximum trace into the separate maximum-trace - * structure. (this way the maximum trace is permanently saved, - * for later retrieval via /sys/kernel/debug/tracing/latency_trace) - */ -static void -__update_max_tr(struct trace_array *tr, struct task_struct *tsk, int cpu) -{ - struct trace_array_cpu *data = tr->data[cpu]; - - max_tr.cpu = cpu; - max_tr.time_start = data->preempt_timestamp; - - data = max_tr.data[cpu]; - data->saved_latency = tracing_max_latency; - - memcpy(data->comm, tsk->comm, TASK_COMM_LEN); - data->pid = tsk->pid; - data->uid = task_uid(tsk); - data->nice = tsk->static_prio - 20 - MAX_RT_PRIO; - data->policy = tsk->policy; - data->rt_priority = tsk->rt_priority; - - /* record this tasks comm */ - tracing_record_cmdline(tsk); -} - ssize_t trace_seq_to_user(struct trace_seq *s, char __user *ubuf, size_t cnt) { int len; @@ -420,6 +378,53 @@ static ssize_t trace_seq_to_buffer(struct trace_seq *s, void *buf, size_t cnt) return cnt; } +/* + * ftrace_max_lock is used to protect the swapping of buffers + * when taking a max snapshot. The buffers themselves are + * protected by per_cpu spinlocks. But the action of the swap + * needs its own lock. + * + * This is defined as a raw_spinlock_t in order to help + * with performance when lockdep debugging is enabled. + * + * It is also used in other places outside the update_max_tr + * so it needs to be defined outside of the + * CONFIG_TRACER_MAX_TRACE. + */ +static raw_spinlock_t ftrace_max_lock = + (raw_spinlock_t)__RAW_SPIN_LOCK_UNLOCKED; + +#ifdef CONFIG_TRACER_MAX_TRACE +unsigned long __read_mostly tracing_max_latency; +unsigned long __read_mostly tracing_thresh; + +/* + * Copy the new maximum trace into the separate maximum-trace + * structure. (this way the maximum trace is permanently saved, + * for later retrieval via /sys/kernel/debug/tracing/latency_trace) + */ +static void +__update_max_tr(struct trace_array *tr, struct task_struct *tsk, int cpu) +{ + struct trace_array_cpu *data = tr->data[cpu]; + + max_tr.cpu = cpu; + max_tr.time_start = data->preempt_timestamp; + + data = max_tr.data[cpu]; + data->saved_latency = tracing_max_latency; + + memcpy(data->comm, tsk->comm, TASK_COMM_LEN); + data->pid = tsk->pid; + data->uid = task_uid(tsk); + data->nice = tsk->static_prio - 20 - MAX_RT_PRIO; + data->policy = tsk->policy; + data->rt_priority = tsk->rt_priority; + + /* record this tasks comm */ + tracing_record_cmdline(tsk); +} + /** * update_max_tr - snapshot all trace buffers from global_trace to max_tr * @tr: tracer @@ -476,6 +481,7 @@ update_max_tr_single(struct trace_array *tr, struct task_struct *tsk, int cpu) __update_max_tr(tr, tsk, cpu); __raw_spin_unlock(&ftrace_max_lock); } +#endif /* CONFIG_TRACER_MAX_TRACE */ /** * register_tracer - register a tracer with the ftrace system. @@ -3952,11 +3958,13 @@ static __init int tracer_init_debugfs(void) trace_create_file("current_tracer", 0644, d_tracer, &global_trace, &set_tracer_fops); +#ifdef CONFIG_TRACER_MAX_TRACE trace_create_file("tracing_max_latency", 0644, d_tracer, &tracing_max_latency, &tracing_max_lat_fops); trace_create_file("tracing_thresh", 0644, d_tracer, &tracing_thresh, &tracing_max_lat_fops); +#endif trace_create_file("README", 0444, d_tracer, NULL, &tracing_readme_fops); diff --git a/kernel/trace/trace.h b/kernel/trace/trace.h index 654fd65..e2c06b2 100644 --- a/kernel/trace/trace.h +++ b/kernel/trace/trace.h @@ -473,12 +473,14 @@ void unregister_tracer(struct tracer *type); extern unsigned long nsecs_to_usecs(unsigned long nsecs); +#ifdef CONFIG_TRACER_MAX_TRACE extern unsigned long tracing_max_latency; extern unsigned long tracing_thresh; void update_max_tr(struct trace_array *tr, struct task_struct *tsk, int cpu); void update_max_tr_single(struct trace_array *tr, struct task_struct *tsk, int cpu); +#endif /* CONFIG_TRACER_MAX_TRACE */ #ifdef CONFIG_STACKTRACE void ftrace_trace_stack(struct trace_array *tr, unsigned long flags, -- cgit v0.10.2 From 326ba5010a5429a5a528b268b36a5900d4ab0eba Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Thu, 27 Aug 2009 17:59:04 -0700 Subject: Linux 2.6.31-rc8 diff --git a/Makefile b/Makefile index 9c87e60..25c615e 100644 --- a/Makefile +++ b/Makefile @@ -1,7 +1,7 @@ VERSION = 2 PATCHLEVEL = 6 SUBLEVEL = 31 -EXTRAVERSION = -rc7 +EXTRAVERSION = -rc8 NAME = Man-Eating Seals of Antiquity # *DOCUMENTATION* -- cgit v0.10.2 From a1b08e75dff3dc18a88444803753e667bb1d126e Mon Sep 17 00:00:00 2001 From: Tao Ma Date: Thu, 27 Aug 2009 14:46:56 +0800 Subject: ocfs2: invalidate dentry if its dentry_lock isn't initialized. In commit a5a0a630922a2f6a774b6dac19f70cb5abd86bb0, when ocfs2_attch_dentry_lock fails, we call an extra iput and reset dentry->d_fsdata to NULL. This resolve a bug, but it isn't completed and the dentry is still there. When we want to use it again, ocfs2_dentry_revalidate doesn't catch it and return true. That make future ocfs2_dentry_lock panic out. One bug is http://oss.oracle.com/bugzilla/show_bug.cgi?id=1162. The resolution is to add a check for dentry->d_fsdata in revalidate process and return false if dentry->d_fsdata is NULL, so that a new ocfs2_lookup will be called again. Signed-off-by: Tao Ma Signed-off-by: Joel Becker diff --git a/fs/ocfs2/dcache.c b/fs/ocfs2/dcache.c index 2f28b7d..b4957c7 100644 --- a/fs/ocfs2/dcache.c +++ b/fs/ocfs2/dcache.c @@ -85,6 +85,17 @@ static int ocfs2_dentry_revalidate(struct dentry *dentry, goto bail; } + /* + * If the last lookup failed to create dentry lock, let us + * redo it. + */ + if (!dentry->d_fsdata) { + mlog(0, "Inode %llu doesn't have dentry lock, " + "returning false\n", + (unsigned long long)OCFS2_I(inode)->ip_blkno); + goto bail; + } + ret = 1; bail: -- cgit v0.10.2 From 6bb56347f5162d1a7cb1dc461023360781ecd4c0 Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Fri, 28 Aug 2009 13:44:53 +0200 Subject: perf_counters: Increase paranoia level Per-cpu counters are an ASLR information leak as they show the execution other tasks do. Increase the paranoia level to 1, which disallows per-cpu counters. (they still allow counting/profiling of own tasks - and admin can profile everything.) Acked-by: Peter Zijlstra Cc: Mike Galbraith Cc: Paul Mackerras Cc: Arnaldo Carvalho de Melo Cc: Frederic Weisbecker LKML-Reference: Signed-off-by: Ingo Molnar diff --git a/kernel/perf_counter.c b/kernel/perf_counter.c index f274e19..7d4bb83 100644 --- a/kernel/perf_counter.c +++ b/kernel/perf_counter.c @@ -50,7 +50,7 @@ static atomic_t nr_task_counters __read_mostly; * 1 - disallow cpu counters to unpriv * 2 - disallow kernel profiling to unpriv */ -int sysctl_perf_counter_paranoid __read_mostly; +int sysctl_perf_counter_paranoid __read_mostly = 1; static inline bool perf_paranoid_cpu(void) { -- cgit v0.10.2 From 0dd7b74787eaf7858c6c573353a83c3e2766e674 Mon Sep 17 00:00:00 2001 From: Frederic Weisbecker Date: Fri, 28 Aug 2009 00:50:06 +0200 Subject: tracing: Fix double CPP substitution in TRACE_EVENT_FN TRACE_EVENT_FN relays on TRACE_EVENT by reprocessing its parameters into the ftrace events CPP macro. This leads to a double substitution in some cases. For example, a bad consequence is a format always prefixed by "%s, %s\n" for every TRACE_EVENT_FN based events. Eg: cat /debug/tracing/events/syscalls/sys_enter/format [...] print fmt: "%s, %s\n", "\"NR %ld (%lx, %lx, %lx, %lx, %lx, %lx)\"",\ "REC->id, REC->args[0], REC->args[1], REC->args[2], REC->args[3],\ REC->args[4], REC->args[5]" This creates a failure in post-processing tools such as perf trace or trace-cmd. Then drop this double substitution and replace it by a new __cpparg() macro that relays CPP arguments containing commas. Signed-off-by: Frederic Weisbecker Cc: Josh Stone Cc: Li Zefan Cc: Steven Rostedt Cc: Jason Baron LKML-Reference: <1251413406-6704-1-git-send-email-fweisbec@gmail.com> Signed-off-by: Ingo Molnar diff --git a/include/trace/ftrace.h b/include/trace/ftrace.h index 360a77a..57c56a9 100644 --- a/include/trace/ftrace.h +++ b/include/trace/ftrace.h @@ -45,14 +45,15 @@ }; \ static struct ftrace_event_call event_##name +#undef __cpparg +#define __cpparg(arg...) arg + /* Callbacks are meaningless to ftrace. */ #undef TRACE_EVENT_FN -#define TRACE_EVENT_FN(name, proto, args, tstruct, \ - assign, print, reg, unreg) \ - TRACE_EVENT(name, TP_PROTO(proto), TP_ARGS(args), \ - TP_STRUCT__entry(tstruct), \ - TP_fast_assign(assign), \ - TP_printk(print)) +#define TRACE_EVENT_FN(name, proto, args, tstruct, \ + assign, print, reg, unreg) \ + TRACE_EVENT(name, __cpparg(proto), __cpparg(args), \ + __cpparg(tstruct), __cpparg(assign), __cpparg(print)) \ #include TRACE_INCLUDE(TRACE_INCLUDE_FILE) -- cgit v0.10.2 From b962e7312ae87006aed6f68ceee94bdf8db08338 Mon Sep 17 00:00:00 2001 From: Brian Rogers Date: Fri, 28 Aug 2009 10:00:05 -0400 Subject: inotify: do not send a block of zeros when no pathname is available When an event has no pathname, there's no need to pad it with a null byte and therefore generate an inotify_event sized block of zeros. This fixes a regression introduced by commit 0db501bd0610ee0c0aca84d927f90bcccd09e2bd where my system wouldn't finish booting because some process was being confused by this. Signed-off-by: Brian Rogers Signed-off-by: Eric Paris diff --git a/fs/notify/inotify/inotify_user.c b/fs/notify/inotify/inotify_user.c index 0e781bc..b547ae1 100644 --- a/fs/notify/inotify/inotify_user.c +++ b/fs/notify/inotify/inotify_user.c @@ -180,7 +180,7 @@ static ssize_t copy_event_to_user(struct fsnotify_group *group, struct fsnotify_event_private_data *fsn_priv; struct inotify_event_private_data *priv; size_t event_size = sizeof(struct inotify_event); - size_t name_len; + size_t name_len = 0; /* we get the inotify watch descriptor from the event private data */ spin_lock(&event->lock); @@ -196,10 +196,12 @@ static ssize_t copy_event_to_user(struct fsnotify_group *group, inotify_free_event_priv(fsn_priv); } - /* round up event->name_len so it is a multiple of event_size + /* + * round up event->name_len so it is a multiple of event_size * plus an extra byte for the terminating '\0'. */ - name_len = roundup(event->name_len + 1, event_size); + if (event->name_len) + name_len = roundup(event->name_len + 1, event_size); inotify_event.len = name_len; inotify_event.mask = inotify_mask_to_arg(event->mask); -- cgit v0.10.2 From 83cb10f0ef3c96162be92339ccf8c0c9c9f2d13e Mon Sep 17 00:00:00 2001 From: Eric Paris Date: Fri, 28 Aug 2009 11:57:55 -0400 Subject: inotify: fix length reporting and size checking 0db501bd0610ee0c0 introduced a regresion in that it now sends a nul terminator but the length accounting when checking for space or reporting to userspace did not take this into account. This corrects all of the rounding logic. Signed-off-by: Eric Paris diff --git a/fs/notify/inotify/inotify_user.c b/fs/notify/inotify/inotify_user.c index b547ae1..6111670 100644 --- a/fs/notify/inotify/inotify_user.c +++ b/fs/notify/inotify/inotify_user.c @@ -154,7 +154,8 @@ static struct fsnotify_event *get_one_event(struct fsnotify_group *group, event = fsnotify_peek_notify_event(group); - event_size += roundup(event->name_len, event_size); + if (event->name_len) + event_size += roundup(event->name_len + 1, event_size); if (event_size > count) return ERR_PTR(-EINVAL); @@ -327,8 +328,9 @@ static long inotify_ioctl(struct file *file, unsigned int cmd, list_for_each_entry(holder, &group->notification_list, event_list) { event = holder->event; send_len += sizeof(struct inotify_event); - send_len += roundup(event->name_len, - sizeof(struct inotify_event)); + if (event->name_len) + send_len += roundup(event->name_len + 1, + sizeof(struct inotify_event)); } mutex_unlock(&group->notification_mutex); ret = put_user(send_len, (int __user *) p); -- cgit v0.10.2 From 750a8870fe4016ef3091fc97e084d58c613c2cc7 Mon Sep 17 00:00:00 2001 From: Eric Paris Date: Fri, 28 Aug 2009 12:50:47 -0400 Subject: inotify: update the group mask on mark addition Seperating the addition and update of marks in inotify resulted in a regression in that inotify never gets events. The inotify group mask is always 0. This mask should be updated any time a new mark is added. Signed-off-by: Eric Paris diff --git a/fs/notify/inotify/inotify_user.c b/fs/notify/inotify/inotify_user.c index 6111670..dcd2040 100644 --- a/fs/notify/inotify/inotify_user.c +++ b/fs/notify/inotify/inotify_user.c @@ -591,6 +591,10 @@ retry: /* match the ref from fsnotify_init_markentry() */ fsnotify_put_mark(&tmp_ientry->fsn_entry); + /* if this mark added a new event update the group mask */ + if (mask & ~group->mask) + fsnotify_recalc_group_mask(group); + out_err: if (ret < 0) kmem_cache_free(inotify_inode_mark_cachep, tmp_ientry); -- cgit v0.10.2 From 11ebd1bf07fafde8d16562966c96b05b0d4ced9e Mon Sep 17 00:00:00 2001 From: Zhu Yi Date: Fri, 28 Aug 2009 11:42:31 +0800 Subject: ipw2200: firmware DMA loading rework Bartlomiej Zolnierkiewicz reported an atomic order-6 allocation failure for ipw2200 firmware loading in kernel 2.6.30. High order allocation is likely to fail and should always be avoided. The patch fixes this problem by replacing the original order-6 pci_alloc_consistent() with an array of order-1 pages from a pci pool. This utilized the ipw2200 DMA command blocks (up to 64 slots). The maximum firmware size support remains the same (64*8K). This patch fixes bug http://bugzilla.kernel.org/show_bug.cgi?id=14016 Cc: Andrew Morton Cc: Mel Gorman Signed-off-by: Zhu Yi Signed-off-by: John W. Linville diff --git a/drivers/net/wireless/ipw2x00/ipw2200.c b/drivers/net/wireless/ipw2x00/ipw2200.c index 6dcac73..f593fbb 100644 --- a/drivers/net/wireless/ipw2x00/ipw2200.c +++ b/drivers/net/wireless/ipw2x00/ipw2200.c @@ -2874,45 +2874,27 @@ static int ipw_fw_dma_add_command_block(struct ipw_priv *priv, return 0; } -static int ipw_fw_dma_add_buffer(struct ipw_priv *priv, - u32 src_phys, u32 dest_address, u32 length) +static int ipw_fw_dma_add_buffer(struct ipw_priv *priv, dma_addr_t *src_address, + int nr, u32 dest_address, u32 len) { - u32 bytes_left = length; - u32 src_offset = 0; - u32 dest_offset = 0; - int status = 0; + int ret, i; + u32 size; + IPW_DEBUG_FW(">> \n"); - IPW_DEBUG_FW_INFO("src_phys=0x%x dest_address=0x%x length=0x%x\n", - src_phys, dest_address, length); - while (bytes_left > CB_MAX_LENGTH) { - status = ipw_fw_dma_add_command_block(priv, - src_phys + src_offset, - dest_address + - dest_offset, - CB_MAX_LENGTH, 0, 0); - if (status) { + IPW_DEBUG_FW_INFO("nr=%d dest_address=0x%x len=0x%x\n", + nr, dest_address, len); + + for (i = 0; i < nr; i++) { + size = min_t(u32, len - i * CB_MAX_LENGTH, CB_MAX_LENGTH); + ret = ipw_fw_dma_add_command_block(priv, src_address[i], + dest_address + + i * CB_MAX_LENGTH, size, + 0, 0); + if (ret) { IPW_DEBUG_FW_INFO(": Failed\n"); return -1; } else IPW_DEBUG_FW_INFO(": Added new cb\n"); - - src_offset += CB_MAX_LENGTH; - dest_offset += CB_MAX_LENGTH; - bytes_left -= CB_MAX_LENGTH; - } - - /* add the buffer tail */ - if (bytes_left > 0) { - status = - ipw_fw_dma_add_command_block(priv, src_phys + src_offset, - dest_address + dest_offset, - bytes_left, 0, 0); - if (status) { - IPW_DEBUG_FW_INFO(": Failed on the buffer tail\n"); - return -1; - } else - IPW_DEBUG_FW_INFO - (": Adding new cb - the buffer tail\n"); } IPW_DEBUG_FW("<< \n"); @@ -3160,59 +3142,91 @@ static int ipw_load_ucode(struct ipw_priv *priv, u8 * data, size_t len) static int ipw_load_firmware(struct ipw_priv *priv, u8 * data, size_t len) { - int rc = -1; + int ret = -1; int offset = 0; struct fw_chunk *chunk; - dma_addr_t shared_phys; - u8 *shared_virt; + int total_nr = 0; + int i; + struct pci_pool *pool; + u32 *virts[CB_NUMBER_OF_ELEMENTS_SMALL]; + dma_addr_t phys[CB_NUMBER_OF_ELEMENTS_SMALL]; IPW_DEBUG_TRACE("<< : \n"); - shared_virt = pci_alloc_consistent(priv->pci_dev, len, &shared_phys); - if (!shared_virt) + pool = pci_pool_create("ipw2200", priv->pci_dev, CB_MAX_LENGTH, 0, 0); + if (!pool) { + IPW_ERROR("pci_pool_create failed\n"); return -ENOMEM; - - memmove(shared_virt, data, len); + } /* Start the Dma */ - rc = ipw_fw_dma_enable(priv); + ret = ipw_fw_dma_enable(priv); /* the DMA is already ready this would be a bug. */ BUG_ON(priv->sram_desc.last_cb_index > 0); do { + u32 chunk_len; + u8 *start; + int size; + int nr = 0; + chunk = (struct fw_chunk *)(data + offset); offset += sizeof(struct fw_chunk); + chunk_len = le32_to_cpu(chunk->length); + start = data + offset; + + nr = (chunk_len + CB_MAX_LENGTH - 1) / CB_MAX_LENGTH; + for (i = 0; i < nr; i++) { + virts[total_nr] = pci_pool_alloc(pool, GFP_KERNEL, + &phys[total_nr]); + if (!virts[total_nr]) { + ret = -ENOMEM; + goto out; + } + size = min_t(u32, chunk_len - i * CB_MAX_LENGTH, + CB_MAX_LENGTH); + memcpy(virts[total_nr], start, size); + start += size; + total_nr++; + /* We don't support fw chunk larger than 64*8K */ + BUG_ON(total_nr > CB_NUMBER_OF_ELEMENTS_SMALL); + } + /* build DMA packet and queue up for sending */ /* dma to chunk->address, the chunk->length bytes from data + * offeset*/ /* Dma loading */ - rc = ipw_fw_dma_add_buffer(priv, shared_phys + offset, - le32_to_cpu(chunk->address), - le32_to_cpu(chunk->length)); - if (rc) { + ret = ipw_fw_dma_add_buffer(priv, &phys[total_nr - nr], + nr, le32_to_cpu(chunk->address), + chunk_len); + if (ret) { IPW_DEBUG_INFO("dmaAddBuffer Failed\n"); goto out; } - offset += le32_to_cpu(chunk->length); + offset += chunk_len; } while (offset < len); /* Run the DMA and wait for the answer */ - rc = ipw_fw_dma_kick(priv); - if (rc) { + ret = ipw_fw_dma_kick(priv); + if (ret) { IPW_ERROR("dmaKick Failed\n"); goto out; } - rc = ipw_fw_dma_wait(priv); - if (rc) { + ret = ipw_fw_dma_wait(priv); + if (ret) { IPW_ERROR("dmaWaitSync Failed\n"); goto out; } - out: - pci_free_consistent(priv->pci_dev, len, shared_virt, shared_phys); - return rc; + out: + for (i = 0; i < total_nr; i++) + pci_pool_free(pool, virts[i], phys[i]); + + pci_pool_destroy(pool); + + return ret; } /* stop nic */ -- cgit v0.10.2 From b0de22bdffa2e9a8e280d769c59f866605268484 Mon Sep 17 00:00:00 2001 From: Lin Ming Date: Wed, 26 Aug 2009 09:01:34 +0800 Subject: ACPICA: Windows compatibility fix: same buffer/string store Fix a compatibility issue when the same buffer or string is stored to itself. This has been seen in the field. Previously, ACPICA would zero out the buffer/string. Now, the operation is treated as a NOP. http://bugzilla.acpica.org/show_bug.cgi?id=803 Reported-by: Rezwanul Kabir Signed-off-by: Lin Ming Signed-off-by: Bob Moore Signed-off-by: Len Brown diff --git a/drivers/acpi/acpica/exstorob.c b/drivers/acpi/acpica/exstorob.c index 67340cc..257706e 100644 --- a/drivers/acpi/acpica/exstorob.c +++ b/drivers/acpi/acpica/exstorob.c @@ -70,6 +70,12 @@ acpi_ex_store_buffer_to_buffer(union acpi_operand_object *source_desc, ACPI_FUNCTION_TRACE_PTR(ex_store_buffer_to_buffer, source_desc); + /* If Source and Target are the same, just return */ + + if (source_desc == target_desc) { + return_ACPI_STATUS(AE_OK); + } + /* We know that source_desc is a buffer by now */ buffer = ACPI_CAST_PTR(u8, source_desc->buffer.pointer); @@ -161,6 +167,12 @@ acpi_ex_store_string_to_string(union acpi_operand_object *source_desc, ACPI_FUNCTION_TRACE_PTR(ex_store_string_to_string, source_desc); + /* If Source and Target are the same, just return */ + + if (source_desc == target_desc) { + return_ACPI_STATUS(AE_OK); + } + /* We know that source_desc is a string by now */ buffer = ACPI_CAST_PTR(u8, source_desc->string.pointer); -- cgit v0.10.2 From 82e7784f57a81faf673b09bc468e736d582fe754 Mon Sep 17 00:00:00 2001 From: Jiri Slaby Date: Thu, 6 Aug 2009 15:57:51 -0700 Subject: toshiba_acpi: return on a fail path Return from bt_rfkill_poll() when hci_get_radio_state() fails. value is invalid in that case and should not be assigned to the rfkill state. This also fixes a double unlock bug. Signed-off-by: Jiri Slaby Cc: John W. Linville Cc: Johannes Berg Cc: Henrique de Moraes Holschuh Signed-off-by: Andrew Morton Signed-off-by: Len Brown diff --git a/drivers/platform/x86/toshiba_acpi.c b/drivers/platform/x86/toshiba_acpi.c index 81d31ea..51c0a8b 100644 --- a/drivers/platform/x86/toshiba_acpi.c +++ b/drivers/platform/x86/toshiba_acpi.c @@ -335,6 +335,7 @@ static void bt_rfkill_poll(struct rfkill *rfkill, void *data) if (hci_result != HCI_SUCCESS) { /* Can't do anything useful */ mutex_unlock(&dev->mutex); + return; } new_rfk_state = value; -- cgit v0.10.2 From e29b3ee3b005897fbdcfdd4b3190776e38739d70 Mon Sep 17 00:00:00 2001 From: Keith Packard Date: Thu, 6 Aug 2009 15:57:54 -0700 Subject: ACPI: don't free non-existent backlight in acpi video module acpi_video_put_one_device was attempting to remove sysfs entries and unregister a backlight device without first checking that said backlight device structure had been created. Signed-off-by: Keith Packard Acked-by: Zhang Rui Signed-off-by: Andrew Morton Signed-off-by: Len Brown diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c index 8851315..60ea984 100644 --- a/drivers/acpi/video.c +++ b/drivers/acpi/video.c @@ -2004,8 +2004,11 @@ static int acpi_video_bus_put_one_device(struct acpi_video_device *device) status = acpi_remove_notify_handler(device->dev->handle, ACPI_DEVICE_NOTIFY, acpi_video_device_notify); - sysfs_remove_link(&device->backlight->dev.kobj, "device"); - backlight_device_unregister(device->backlight); + if (device->backlight) { + sysfs_remove_link(&device->backlight->dev.kobj, "device"); + backlight_device_unregister(device->backlight); + device->backlight = NULL; + } if (device->cdev) { sysfs_remove_link(&device->dev->dev.kobj, "thermal_cooling"); -- cgit v0.10.2 From ea6bff368548d79529421a9dc0710fc5330eb504 Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Fri, 28 Aug 2009 10:44:56 +0200 Subject: modules: Fix build error in the !CONFIG_KALLSYMS case MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit > James Bottomley (1): > module: workaround duplicate section names -tip testing found that this patch breaks the build on x86 if CONFIG_KALLSYMS is disabled: kernel/module.c: In function ‘load_module’: kernel/module.c:2367: error: ‘struct module’ has no member named ‘sect_attrs’ distcc[8269] ERROR: compile kernel/module.c on ph/32 failed make[1]: *** [kernel/module.o] Error 1 make: *** [kernel] Error 2 make: *** Waiting for unfinished jobs.... Commit 1b364bf misses the fact that section attributes are only built and dealt with if kallsyms is enabled. The patch below fixes this. ( note, technically speaking this should depend on CONFIG_SYSFS as well but this patch is correct too and keeps the #ifdef less intrusive - in the KALLSYMS && !SYSFS case the code is a NOP. ) Signed-off-by: Ingo Molnar [ Replaced patch with a slightly cleaner variation by James Bottomley ] Signed-off-by: Linus Torvalds diff --git a/kernel/module.c b/kernel/module.c index eccb561..2d53718 100644 --- a/kernel/module.c +++ b/kernel/module.c @@ -1274,6 +1274,10 @@ static void add_notes_attrs(struct module *mod, unsigned int nsect, struct module_notes_attrs *notes_attrs; struct bin_attribute *nattr; + /* failed to create section attributes, so can't create notes */ + if (!mod->sect_attrs) + return; + /* Count notes sections and allocate structures. */ notes = 0; for (i = 0; i < nsect; i++) @@ -2355,8 +2359,7 @@ static noinline struct module *load_module(void __user *umod, if (err < 0) goto unlink; add_sect_attrs(mod, hdr->e_shnum, secstrings, sechdrs); - if (mod->sect_attrs) - add_notes_attrs(mod, hdr->e_shnum, secstrings, sechdrs); + add_notes_attrs(mod, hdr->e_shnum, secstrings, sechdrs); /* Get rid of temporary copy */ vfree(hdr); -- cgit v0.10.2 From 2574cc9f4ffc6c681c9177111357efe5b76f0e36 Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Fri, 28 Aug 2009 11:12:12 -0400 Subject: SUNRPC: Fix rpc_task_force_reencode This patch fixes the bug that was reported in http://bugzilla.kernel.org/show_bug.cgi?id=14053 If we're in the case where we need to force a reencode and then resend of the RPC request, due to xprt_transmit failing with a networking error, then we _must_ retransmit the entire request. Signed-off-by: Trond Myklebust Cc: stable@kernel.org Signed-off-by: Linus Torvalds diff --git a/net/sunrpc/clnt.c b/net/sunrpc/clnt.c index ebfcf9b..df1039f 100644 --- a/net/sunrpc/clnt.c +++ b/net/sunrpc/clnt.c @@ -937,6 +937,7 @@ static inline void rpc_task_force_reencode(struct rpc_task *task) { task->tk_rqstp->rq_snd_buf.len = 0; + task->tk_rqstp->rq_bytes_sent = 0; } static inline void -- cgit v0.10.2 From 825e1e23914b9c3dbc49ee8c5a1d1cb421c1270a Mon Sep 17 00:00:00 2001 From: Grant Grundler Date: Fri, 28 Aug 2009 15:00:36 -0400 Subject: parisc: fix warning in traps.c On Tue, Aug 18, 2009 at 01:45:17PM -0400, John David Anglin wrote: > CC arch/parisc/kernel/traps.o > arch/parisc/kernel/traps.c: In function 'handle_interruption': > arch/parisc/kernel/traps.c:535:18: warning: operation on 'regs->iasq[0]' > may be undefined Yes - Line 535 should use both [0] and [1]. Reported-by: John David Anglin Signed-off-by: Grant Grundler Signed-off-by: Kyle McMartin Signed-off-by: Linus Torvalds diff --git a/arch/parisc/kernel/traps.c b/arch/parisc/kernel/traps.c index 528f0ff..8b58bf0 100644 --- a/arch/parisc/kernel/traps.c +++ b/arch/parisc/kernel/traps.c @@ -532,7 +532,7 @@ void notrace handle_interruption(int code, struct pt_regs *regs) /* Kill the user process later */ regs->iaoq[0] = 0 | 3; regs->iaoq[1] = regs->iaoq[0] + 4; - regs->iasq[0] = regs->iasq[0] = regs->sr[7]; + regs->iasq[0] = regs->iasq[1] = regs->sr[7]; regs->gr[0] &= ~PSW_B; return; } -- cgit v0.10.2 From 0c7d400fafaeab6014504a6a6249f01bac7f7db4 Mon Sep 17 00:00:00 2001 From: Herbert Xu Date: Sat, 29 Aug 2009 20:44:04 +1000 Subject: crypto: skcipher - Fix skcipher_dequeue_givcrypt NULL test As struct skcipher_givcrypt_request includes struct crypto_request at a non-zero offset, testing for NULL after converting the pointer returned by crypto_dequeue_request does not work. This can result in IPsec crashes when the queue is depleted. This patch fixes it by doing the pointer conversion only when the return value is non-NULL. In particular, we create a new function __crypto_dequeue_request that does the pointer conversion. Reported-by: Brad Bosch Signed-off-by: Herbert Xu diff --git a/crypto/algapi.c b/crypto/algapi.c index 56c62e2..df0863d 100644 --- a/crypto/algapi.c +++ b/crypto/algapi.c @@ -692,7 +692,7 @@ out: } EXPORT_SYMBOL_GPL(crypto_enqueue_request); -struct crypto_async_request *crypto_dequeue_request(struct crypto_queue *queue) +void *__crypto_dequeue_request(struct crypto_queue *queue, unsigned int offset) { struct list_head *request; @@ -707,7 +707,14 @@ struct crypto_async_request *crypto_dequeue_request(struct crypto_queue *queue) request = queue->list.next; list_del(request); - return list_entry(request, struct crypto_async_request, list); + return (char *)list_entry(request, struct crypto_async_request, list) - + offset; +} +EXPORT_SYMBOL_GPL(__crypto_dequeue_request); + +struct crypto_async_request *crypto_dequeue_request(struct crypto_queue *queue) +{ + return __crypto_dequeue_request(queue, 0); } EXPORT_SYMBOL_GPL(crypto_dequeue_request); diff --git a/include/crypto/algapi.h b/include/crypto/algapi.h index 0105454..5a2bd1c 100644 --- a/include/crypto/algapi.h +++ b/include/crypto/algapi.h @@ -137,6 +137,7 @@ struct crypto_instance *crypto_alloc_instance(const char *name, void crypto_init_queue(struct crypto_queue *queue, unsigned int max_qlen); int crypto_enqueue_request(struct crypto_queue *queue, struct crypto_async_request *request); +void *__crypto_dequeue_request(struct crypto_queue *queue, unsigned int offset); struct crypto_async_request *crypto_dequeue_request(struct crypto_queue *queue); int crypto_tfm_in_queue(struct crypto_queue *queue, struct crypto_tfm *tfm); diff --git a/include/crypto/internal/skcipher.h b/include/crypto/internal/skcipher.h index 2ba42cd..3a748a6 100644 --- a/include/crypto/internal/skcipher.h +++ b/include/crypto/internal/skcipher.h @@ -79,8 +79,8 @@ static inline int skcipher_enqueue_givcrypt( static inline struct skcipher_givcrypt_request *skcipher_dequeue_givcrypt( struct crypto_queue *queue) { - return container_of(ablkcipher_dequeue_request(queue), - struct skcipher_givcrypt_request, creq); + return __crypto_dequeue_request( + queue, offsetof(struct skcipher_givcrypt_request, creq.base)); } static inline void *skcipher_givcrypt_reqctx( -- cgit v0.10.2 From eced1dfcfcf6b0a35e925d73916a9d8e36ab5457 Mon Sep 17 00:00:00 2001 From: Peter Zijlstra Date: Fri, 28 Aug 2009 17:10:47 +0200 Subject: perf_counter: Fix /0 bug in swcounters We have a race in the swcounter stuff where we can start counting a counter that has never been enabled, this leads to a /0 situation. The below avoids the /0 but doesn't close the race, this would need a new counter state. The race is due to perf_swcounter_is_counting() which cannot discern between disabled due to scheduled out, and disabled for any other reason. Such a crash has been seen by Ingo: [ 967.092372] divide error: 0000 [#1] SMP [ 967.096499] last sysfs file: /sys/devices/system/cpu/cpu15/cache/index2/shared_cpu_map [ 967.104846] CPU 5 [ 967.106965] Modules linked in: [ 967.110169] Pid: 3351, comm: hackbench Not tainted 2.6.31-rc8-tip-01158-gd940a54-dirty #1568 X8DTN [ 967.119456] RIP: 0010:[] [] perf_swcounter_ctx_event+0x127/0x1af [ 967.129137] RSP: 0018:ffff8801a95abd70 EFLAGS: 00010046 [ 967.134699] RAX: 0000000000000002 RBX: ffff8801bd645c00 RCX: 0000000000000002 [ 967.142162] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8801bd645d40 [ 967.149584] RBP: ffff8801a95abdb0 R08: 0000000000000001 R09: ffff8801a95abe00 [ 967.157042] R10: 0000000000000037 R11: ffff8801aa1245f8 R12: ffff8801a95abe00 [ 967.164481] R13: ffff8801a95abe00 R14: ffff8801aa1c0e78 R15: 0000000000000001 [ 967.171953] FS: 0000000000000000(0000) GS:ffffc90000a00000(0063) knlGS:00000000f7f486c0 [ 967.180406] CS: 0010 DS: 002b ES: 002b CR0: 000000008005003b [ 967.186374] CR2: 000000004822c0ac CR3: 00000001b19a2000 CR4: 00000000000006e0 [ 967.193770] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 967.201224] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 [ 967.208692] Process hackbench (pid: 3351, threadinfo ffff8801a95aa000, task ffff8801a96b0000) [ 967.217607] Stack: [ 967.219711] 0000000000000000 0000000000000037 0000000200000001 ffffc90000a1107c [ 967.227296] <0> ffff8801a95abe00 0000000000000001 0000000000000001 0000000000000037 [ 967.235333] <0> ffff8801a95abdf0 ffffffff810c0c20 0000000200a14f30 ffff8801a95abe40 [ 967.243532] Call Trace: [ 967.246103] [] do_perf_swcounter_event+0xde/0xec [ 967.252635] [] perf_tpcounter_event+0x79/0x7b [ 967.258957] [] ftrace_profile_sched_switch+0xc0/0xcb [ 967.265791] [] schedule+0x429/0x4c4 [ 967.271156] [] int_careful+0xd/0x14 Reported-by: Ingo Molnar Signed-off-by: Peter Zijlstra Cc: Paul Mackerras LKML-Reference: <1251472247.17617.74.camel@laptop> Signed-off-by: Ingo Molnar diff --git a/kernel/perf_counter.c b/kernel/perf_counter.c index 7d4bb83..d7cbc57 100644 --- a/kernel/perf_counter.c +++ b/kernel/perf_counter.c @@ -4066,6 +4066,7 @@ perf_counter_alloc(struct perf_counter_attr *attr, hwc->sample_period = attr->sample_period; if (attr->freq && attr->sample_freq) hwc->sample_period = 1; + hwc->last_period = hwc->sample_period; atomic64_set(&hwc->period_left, hwc->sample_period); -- cgit v0.10.2 From a09ba7faf75fa4b21980d81de8e5f3d5c0785ccf Mon Sep 17 00:00:00 2001 From: Eric Anholt Date: Sat, 29 Aug 2009 12:49:51 -0700 Subject: drm/i915: Fix CPU-spinning hangs related to fence usage by using an LRU. The lack of a proper LRU was partially worked around by taking the fence from the object containing the oldest seqno. But if there are multiple objects inactive, then they don't have seqnos and the first fence reg among them would be chosen. If you were trying to copy data between two mappings, this could result in each page fault stealing the fence from the other argument, and your application hanging. https://bugs.freedesktop.org/show_bug.cgi?id=23566 https://bugs.freedesktop.org/show_bug.cgi?id=23220 https://bugs.freedesktop.org/show_bug.cgi?id=23253 https://bugs.freedesktop.org/show_bug.cgi?id=23366 Cc: Stable Team Signed-off-by: Eric Anholt Reviewed-by: Jesse Barnes Reviewed-by: Chris Wilson diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index 7537f57..11fc4b6 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -384,6 +384,9 @@ typedef struct drm_i915_private { */ struct list_head inactive_list; + /** LRU list of objects with fence regs on them. */ + struct list_head fence_list; + /** * List of breadcrumbs associated with GPU requests currently * outstanding. @@ -451,6 +454,9 @@ struct drm_i915_gem_object { /** This object's place on the active/flushing/inactive lists */ struct list_head list; + /** This object's place on the fenced object LRU */ + struct list_head fence_list; + /** * This is set if the object is on the active or flushing lists * (has pending rendering), and is not set if it's on inactive (ready diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c index 140bee1..0c07a75 100644 --- a/drivers/gpu/drm/i915/i915_gem.c +++ b/drivers/gpu/drm/i915/i915_gem.c @@ -978,6 +978,7 @@ int i915_gem_set_domain_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv) { + struct drm_i915_private *dev_priv = dev->dev_private; struct drm_i915_gem_set_domain *args = data; struct drm_gem_object *obj; uint32_t read_domains = args->read_domains; @@ -1010,8 +1011,18 @@ i915_gem_set_domain_ioctl(struct drm_device *dev, void *data, obj, obj->size, read_domains, write_domain); #endif if (read_domains & I915_GEM_DOMAIN_GTT) { + struct drm_i915_gem_object *obj_priv = obj->driver_private; + ret = i915_gem_object_set_to_gtt_domain(obj, write_domain != 0); + /* Update the LRU on the fence for the CPU access that's + * about to occur. + */ + if (obj_priv->fence_reg != I915_FENCE_REG_NONE) { + list_move_tail(&obj_priv->fence_list, + &dev_priv->mm.fence_list); + } + /* Silently promote "you're not bound, there was nothing to do" * to success, since the client was just asking us to * make sure everything was done. @@ -1155,8 +1166,7 @@ int i915_gem_fault(struct vm_area_struct *vma, struct vm_fault *vmf) } /* Need a new fence register? */ - if (obj_priv->fence_reg == I915_FENCE_REG_NONE && - obj_priv->tiling_mode != I915_TILING_NONE) { + if (obj_priv->tiling_mode != I915_TILING_NONE) { ret = i915_gem_object_get_fence_reg(obj); if (ret) { mutex_unlock(&dev->struct_mutex); @@ -2208,6 +2218,12 @@ i915_gem_object_get_fence_reg(struct drm_gem_object *obj) struct drm_i915_gem_object *old_obj_priv = NULL; int i, ret, avail; + /* Just update our place in the LRU if our fence is getting used. */ + if (obj_priv->fence_reg != I915_FENCE_REG_NONE) { + list_move_tail(&obj_priv->fence_list, &dev_priv->mm.fence_list); + return 0; + } + switch (obj_priv->tiling_mode) { case I915_TILING_NONE: WARN(1, "allocating a fence for non-tiled object?\n"); @@ -2229,7 +2245,6 @@ i915_gem_object_get_fence_reg(struct drm_gem_object *obj) } /* First try to find a free reg */ -try_again: avail = 0; for (i = dev_priv->fence_reg_start; i < dev_priv->num_fence_regs; i++) { reg = &dev_priv->fence_regs[i]; @@ -2243,52 +2258,41 @@ try_again: /* None available, try to steal one or wait for a user to finish */ if (i == dev_priv->num_fence_regs) { - uint32_t seqno = dev_priv->mm.next_gem_seqno; + struct drm_gem_object *old_obj = NULL; if (avail == 0) return -ENOSPC; - for (i = dev_priv->fence_reg_start; - i < dev_priv->num_fence_regs; i++) { - uint32_t this_seqno; + list_for_each_entry(old_obj_priv, &dev_priv->mm.fence_list, + fence_list) { + old_obj = old_obj_priv->obj; - reg = &dev_priv->fence_regs[i]; - old_obj_priv = reg->obj->driver_private; + reg = &dev_priv->fence_regs[old_obj_priv->fence_reg]; if (old_obj_priv->pin_count) continue; + /* Take a reference, as otherwise the wait_rendering + * below may cause the object to get freed out from + * under us. + */ + drm_gem_object_reference(old_obj); + /* i915 uses fences for GPU access to tiled buffers */ if (IS_I965G(dev) || !old_obj_priv->active) break; - /* find the seqno of the first available fence */ - this_seqno = old_obj_priv->last_rendering_seqno; - if (this_seqno != 0 && - reg->obj->write_domain == 0 && - i915_seqno_passed(seqno, this_seqno)) - seqno = this_seqno; - } - - /* - * Now things get ugly... we have to wait for one of the - * objects to finish before trying again. - */ - if (i == dev_priv->num_fence_regs) { - if (seqno == dev_priv->mm.next_gem_seqno) { - i915_gem_flush(dev, - I915_GEM_GPU_DOMAINS, - I915_GEM_GPU_DOMAINS); - seqno = i915_add_request(dev, NULL, - I915_GEM_GPU_DOMAINS); - if (seqno == 0) - return -ENOMEM; - } - - ret = i915_wait_request(dev, seqno); - if (ret) + /* This brings the object to the head of the LRU if it + * had been written to. The only way this should + * result in us waiting longer than the expected + * optimal amount of time is if there was a + * fence-using buffer later that was read-only. + */ + i915_gem_object_flush_gpu_write_domain(old_obj); + ret = i915_gem_object_wait_rendering(old_obj); + if (ret != 0) return ret; - goto try_again; + break; } /* @@ -2296,10 +2300,15 @@ try_again: * for this object next time we need it. */ i915_gem_release_mmap(reg->obj); + i = old_obj_priv->fence_reg; old_obj_priv->fence_reg = I915_FENCE_REG_NONE; + list_del_init(&old_obj_priv->fence_list); + drm_gem_object_unreference(old_obj); } obj_priv->fence_reg = i; + list_add_tail(&obj_priv->fence_list, &dev_priv->mm.fence_list); + reg->obj = obj; if (IS_I965G(dev)) @@ -2342,6 +2351,7 @@ i915_gem_clear_fence_reg(struct drm_gem_object *obj) dev_priv->fence_regs[obj_priv->fence_reg].obj = NULL; obj_priv->fence_reg = I915_FENCE_REG_NONE; + list_del_init(&obj_priv->fence_list); } /** @@ -3595,9 +3605,7 @@ i915_gem_object_pin(struct drm_gem_object *obj, uint32_t alignment) * Pre-965 chips need a fence register set up in order to * properly handle tiled surfaces. */ - if (!IS_I965G(dev) && - obj_priv->fence_reg == I915_FENCE_REG_NONE && - obj_priv->tiling_mode != I915_TILING_NONE) { + if (!IS_I965G(dev) && obj_priv->tiling_mode != I915_TILING_NONE) { ret = i915_gem_object_get_fence_reg(obj); if (ret != 0) { if (ret != -EBUSY && ret != -ERESTARTSYS) @@ -3806,6 +3814,7 @@ int i915_gem_init_object(struct drm_gem_object *obj) obj_priv->obj = obj; obj_priv->fence_reg = I915_FENCE_REG_NONE; INIT_LIST_HEAD(&obj_priv->list); + INIT_LIST_HEAD(&obj_priv->fence_list); return 0; } @@ -4253,6 +4262,7 @@ i915_gem_load(struct drm_device *dev) INIT_LIST_HEAD(&dev_priv->mm.flushing_list); INIT_LIST_HEAD(&dev_priv->mm.inactive_list); INIT_LIST_HEAD(&dev_priv->mm.request_list); + INIT_LIST_HEAD(&dev_priv->mm.fence_list); INIT_DELAYED_WORK(&dev_priv->mm.retire_work, i915_gem_retire_work_handler); dev_priv->mm.next_gem_seqno = 1; -- cgit v0.10.2 From db54501900ad3665dd669f5708ecd04fc5aed495 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?David=20M=C3=BCller=20=28ELSOFT=20AG=29?= Date: Sat, 29 Aug 2009 08:54:45 +0200 Subject: drm/i915: Improve CRTDDC mapping by using VBT info MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Use VBT information to determine which DDC bus to use for CRTDCC. Fall back to GPIOA if VBT info is not available. Signed-off-by: David Müller Reviewed-by: Jesse Barnes Signed-off-by: Eric Anholt Tested on: 855 (David), and 945GM, 965GM, GM45, and G45 (anholt) diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index 11fc4b6..5b4f87e 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -222,6 +222,7 @@ typedef struct drm_i915_private { unsigned int edp_support:1; int lvds_ssc_freq; + int crt_ddc_bus; /* -1 = unknown, else GPIO to use for CRT DDC */ struct drm_i915_fence_reg fence_regs[16]; /* assume 965 */ int fence_reg_start; /* 4 if userland hasn't ioctl'd us yet */ int num_fence_regs; /* 8 on pre-965, 16 otherwise */ diff --git a/drivers/gpu/drm/i915/intel_bios.c b/drivers/gpu/drm/i915/intel_bios.c index 300aee3..f806fcc 100644 --- a/drivers/gpu/drm/i915/intel_bios.c +++ b/drivers/gpu/drm/i915/intel_bios.c @@ -59,6 +59,16 @@ find_section(struct bdb_header *bdb, int section_id) return NULL; } +static u16 +get_blocksize(void *p) +{ + u16 *block_ptr, block_size; + + block_ptr = (u16 *)((char *)p - 2); + block_size = *block_ptr; + return block_size; +} + static void fill_detail_timing_data(struct drm_display_mode *panel_fixed_mode, struct lvds_dvo_timing *dvo_timing) @@ -215,6 +225,41 @@ parse_general_features(struct drm_i915_private *dev_priv, } static void +parse_general_definitions(struct drm_i915_private *dev_priv, + struct bdb_header *bdb) +{ + struct bdb_general_definitions *general; + const int crt_bus_map_table[] = { + GPIOB, + GPIOA, + GPIOC, + GPIOD, + GPIOE, + GPIOF, + }; + + /* Set sensible defaults in case we can't find the general block + or it is the wrong chipset */ + dev_priv->crt_ddc_bus = -1; + + general = find_section(bdb, BDB_GENERAL_DEFINITIONS); + if (general) { + u16 block_size = get_blocksize(general); + if (block_size >= sizeof(*general)) { + int bus_pin = general->crt_ddc_gmbus_pin; + DRM_DEBUG("crt_ddc_bus_pin: %d\n", bus_pin); + if ((bus_pin >= 1) && (bus_pin <= 6)) { + dev_priv->crt_ddc_bus = + crt_bus_map_table[bus_pin-1]; + } + } else { + DRM_DEBUG("BDB_GD too small (%d). Invalid.\n", + block_size); + } + } +} + +static void parse_sdvo_device_mapping(struct drm_i915_private *dev_priv, struct bdb_header *bdb) { @@ -222,7 +267,7 @@ parse_sdvo_device_mapping(struct drm_i915_private *dev_priv, struct bdb_general_definitions *p_defs; struct child_device_config *p_child; int i, child_device_num, count; - u16 block_size, *block_ptr; + u16 block_size; p_defs = find_section(bdb, BDB_GENERAL_DEFINITIONS); if (!p_defs) { @@ -240,8 +285,7 @@ parse_sdvo_device_mapping(struct drm_i915_private *dev_priv, return; } /* get the block size of general definitions */ - block_ptr = (u16 *)((char *)p_defs - 2); - block_size = *block_ptr; + block_size = get_blocksize(p_defs); /* get the number of child device */ child_device_num = (block_size - sizeof(*p_defs)) / sizeof(*p_child); @@ -362,6 +406,7 @@ intel_init_bios(struct drm_device *dev) /* Grab useful general definitions */ parse_general_features(dev_priv, bdb); + parse_general_definitions(dev_priv, bdb); parse_lfp_panel_data(dev_priv, bdb); parse_sdvo_panel_data(dev_priv, bdb); parse_sdvo_device_mapping(dev_priv, bdb); diff --git a/drivers/gpu/drm/i915/intel_crt.c b/drivers/gpu/drm/i915/intel_crt.c index d129497..590f81c 100644 --- a/drivers/gpu/drm/i915/intel_crt.c +++ b/drivers/gpu/drm/i915/intel_crt.c @@ -508,6 +508,7 @@ void intel_crt_init(struct drm_device *dev) { struct drm_connector *connector; struct intel_output *intel_output; + struct drm_i915_private *dev_priv = dev->dev_private; u32 i2c_reg; intel_output = kzalloc(sizeof(struct intel_output), GFP_KERNEL); @@ -527,8 +528,12 @@ void intel_crt_init(struct drm_device *dev) /* Set up the DDC bus. */ if (IS_IGDNG(dev)) i2c_reg = PCH_GPIOA; - else + else { i2c_reg = GPIOA; + /* Use VBT information for CRT DDC if available */ + if (dev_priv->crt_ddc_bus != -1) + i2c_reg = dev_priv->crt_ddc_bus; + } intel_output->ddc_bus = intel_i2c_create(dev, i2c_reg, "CRTDDC_A"); if (!intel_output->ddc_bus) { dev_printk(KERN_ERR, &dev->pdev->dev, "DDC bus registration " -- cgit v0.10.2 From 6faf17f6f1ffc586d16efc2f9fa2083a7785ee74 Mon Sep 17 00:00:00 2001 From: Chris Wright Date: Fri, 28 Aug 2009 13:00:06 -0700 Subject: PCI SR-IOV: correct broken resource alignment calculations An SR-IOV capable device includes an SR-IOV PCIe capability which describes the Virtual Function (VF) BAR requirements. A typical SR-IOV device can support multiple VFs whose BARs must be in a contiguous region, effectively an array of VF BARs. The BAR reports the size requirement for a single VF. We calculate the full range needed by simply multiplying the VF BAR size with the number of possible VFs and create a resource spanning the full range. This all seems sane enough except it artificially inflates the alignment requirement for the VF BAR. The VF BAR need only be aligned to the size of a single BAR not the contiguous range of VF BARs. This can cause us to fail to allocate resources for the BAR despite the fact that we actually have enough space. This patch adds a thin PCI specific layer over the generic resource_alignment() function which is aware of the special nature of VF BARs and does sorting and allocation based on the smaller alignment requirement. I recognize that while resource_alignment is generic, it's basically a PCI helper. An alternative to this patch is to add PCI VF BAR specific information to struct resource. I opted for the extra layer rather than adding such PCI specific information to struct resource. This does have the slight downside that we don't cache the BAR size and re-read for each alignment query (happens a small handful of times during boot for each VF BAR). Signed-off-by: Chris Wright Cc: Ivan Kokshaysky Cc: Linus Torvalds Cc: Matthew Wilcox Cc: Yu Zhao Cc: stable@kernel.org Signed-off-by: Jesse Barnes diff --git a/drivers/pci/iov.c b/drivers/pci/iov.c index e3a8721..e03fe98 100644 --- a/drivers/pci/iov.c +++ b/drivers/pci/iov.c @@ -598,6 +598,29 @@ int pci_iov_resource_bar(struct pci_dev *dev, int resno, } /** + * pci_sriov_resource_alignment - get resource alignment for VF BAR + * @dev: the PCI device + * @resno: the resource number + * + * Returns the alignment of the VF BAR found in the SR-IOV capability. + * This is not the same as the resource size which is defined as + * the VF BAR size multiplied by the number of VFs. The alignment + * is just the VF BAR size. + */ +int pci_sriov_resource_alignment(struct pci_dev *dev, int resno) +{ + struct resource tmp; + enum pci_bar_type type; + int reg = pci_iov_resource_bar(dev, resno, &type); + + if (!reg) + return 0; + + __pci_read_base(dev, type, &tmp, reg); + return resource_alignment(&tmp); +} + +/** * pci_restore_iov_state - restore the state of the IOV capability * @dev: the PCI device */ diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h index f73bcbe..5ff4d25 100644 --- a/drivers/pci/pci.h +++ b/drivers/pci/pci.h @@ -243,6 +243,7 @@ extern int pci_iov_init(struct pci_dev *dev); extern void pci_iov_release(struct pci_dev *dev); extern int pci_iov_resource_bar(struct pci_dev *dev, int resno, enum pci_bar_type *type); +extern int pci_sriov_resource_alignment(struct pci_dev *dev, int resno); extern void pci_restore_iov_state(struct pci_dev *dev); extern int pci_iov_bus_range(struct pci_bus *bus); @@ -298,4 +299,16 @@ static inline int pci_ats_enabled(struct pci_dev *dev) } #endif /* CONFIG_PCI_IOV */ +static inline int pci_resource_alignment(struct pci_dev *dev, + struct resource *res) +{ +#ifdef CONFIG_PCI_IOV + int resno = res - dev->resource; + + if (resno >= PCI_IOV_RESOURCES && resno <= PCI_IOV_RESOURCE_END) + return pci_sriov_resource_alignment(dev, resno); +#endif + return resource_alignment(res); +} + #endif /* DRIVERS_PCI_H */ diff --git a/drivers/pci/setup-bus.c b/drivers/pci/setup-bus.c index b636e24..7c443b4 100644 --- a/drivers/pci/setup-bus.c +++ b/drivers/pci/setup-bus.c @@ -25,7 +25,7 @@ #include #include #include - +#include "pci.h" static void pbus_assign_resources_sorted(const struct pci_bus *bus) { @@ -384,7 +384,7 @@ static int pbus_size_mem(struct pci_bus *bus, unsigned long mask, unsigned long continue; r_size = resource_size(r); /* For bridges size != alignment */ - align = resource_alignment(r); + align = pci_resource_alignment(dev, r); order = __ffs(align) - 20; if (order > 11) { dev_warn(&dev->dev, "BAR %d bad alignment %llx: " diff --git a/drivers/pci/setup-res.c b/drivers/pci/setup-res.c index 1898c7b..88cdd1a 100644 --- a/drivers/pci/setup-res.c +++ b/drivers/pci/setup-res.c @@ -144,7 +144,7 @@ static int __pci_assign_resource(struct pci_bus *bus, struct pci_dev *dev, size = resource_size(res); min = (res->flags & IORESOURCE_IO) ? PCIBIOS_MIN_IO : PCIBIOS_MIN_MEM; - align = resource_alignment(res); + align = pci_resource_alignment(dev, res); /* First, try exact prefetching match.. */ ret = pci_bus_alloc_resource(bus, res, size, align, min, @@ -178,7 +178,7 @@ int pci_assign_resource(struct pci_dev *dev, int resno) struct pci_bus *bus; int ret; - align = resource_alignment(res); + align = pci_resource_alignment(dev, res); if (!align) { dev_info(&dev->dev, "BAR %d: can't allocate resource (bogus " "alignment) %pR flags %#lx\n", @@ -259,7 +259,7 @@ void pdev_sort_resources(struct pci_dev *dev, struct resource_list *head) if (!(r->flags) || r->parent) continue; - r_align = resource_alignment(r); + r_align = pci_resource_alignment(dev, r); if (!r_align) { dev_warn(&dev->dev, "BAR %d: bogus alignment " "%pR flags %#lx\n", @@ -271,7 +271,7 @@ void pdev_sort_resources(struct pci_dev *dev, struct resource_list *head) struct resource_list *ln = list->next; if (ln) - align = resource_alignment(ln->res); + align = pci_resource_alignment(ln->dev, ln->res); if (r_align > align) { tmp = kmalloc(sizeof(*tmp), GFP_KERNEL); -- cgit v0.10.2 From b1f1b8ce0a1d71cbc72f7540134d52b79bd8f5ac Mon Sep 17 00:00:00 2001 From: Ryusuke Konishi Date: Sun, 30 Aug 2009 04:21:41 +0900 Subject: nilfs2: fix preempt count underflow in nilfs_btnode_prepare_change_key This will fix the following preempt count underflow reported from users with the title "[NILFS users] segctord problem" (Message-ID: <949415.6494.qm@web58808.mail.re1.yahoo.com> and Message-ID: ): WARNING: at kernel/sched.c:4890 sub_preempt_count+0x95/0xa0() Hardware name: HP Compaq 6530b (KR980UT#ABC) Modules linked in: bridge stp llc bnep rfcomm l2cap xfs exportfs nilfs2 cowloop loop vboxnetadp vboxnetflt vboxdrv btusb bluetooth uvcvideo videodev v4l1_compat v4l2_compat_ioctl32 arc4 snd_hda_codec_analog ecb iwlagn iwlcore rfkill lib80211 mac80211 snd_hda_intel snd_hda_codec ehci_hcd uhci_hcd usbcore snd_hwdep snd_pcm tg3 cfg80211 psmouse snd_timer joydev libphy ohci1394 snd_page_alloc hp_accel lis3lv02d ieee1394 led_class i915 drm i2c_algo_bit video backlight output i2c_core dm_crypt dm_mod Pid: 4197, comm: segctord Not tainted 2.6.30-gentoo-r4-64 #7 Call Trace: [] ? sub_preempt_count+0x95/0xa0 [] warn_slowpath_common+0x78/0xd0 [] warn_slowpath_null+0xf/0x20 [] sub_preempt_count+0x95/0xa0 [] nilfs_btnode_prepare_change_key+0x11b/0x190 [nilfs2] [] nilfs_btree_assign_p+0x19d/0x1e0 [nilfs2] [] nilfs_btree_assign+0xbd/0x130 [nilfs2] [] nilfs_bmap_assign+0x47/0x70 [nilfs2] [] nilfs_segctor_do_construct+0x956/0x20f0 [nilfs2] [] ? _spin_unlock_irqrestore+0x12/0x40 [] ? __up_write+0xe0/0x150 [] ? up_write+0x9/0x10 [] ? nilfs_bmap_test_and_clear_dirty+0x43/0x60 [nilfs2] [] ? nilfs_mdt_fetch_dirty+0x27/0x60 [nilfs2] [] nilfs_segctor_construct+0x8c/0xd0 [nilfs2] [] nilfs_segctor_thread+0x15c/0x3a0 [nilfs2] [] ? nilfs_construction_timeout+0x0/0x10 [nilfs2] [] ? add_timer+0x13/0x20 [] ? __wake_up_common+0x5a/0x90 [] ? autoremove_wake_function+0x0/0x40 [] ? nilfs_segctor_thread+0x0/0x3a0 [nilfs2] [] ? nilfs_segctor_thread+0x0/0x3a0 [nilfs2] [] kthread+0x56/0x90 [] child_rip+0xa/0x20 [] ? kthread+0x0/0x90 [] ? child_rip+0x0/0x20 This problem was caused due to a missing radix_tree_preload() call in the retry path of nilfs_btnode_prepare_change_key() function. Reported-by: Eric A Reported-by: Jerome Poulin Signed-off-by: Ryusuke Konishi Tested-by: Jerome Poulin Cc: stable@kernel.org diff --git a/fs/nilfs2/btnode.c b/fs/nilfs2/btnode.c index 7e0b61b..c668bca 100644 --- a/fs/nilfs2/btnode.c +++ b/fs/nilfs2/btnode.c @@ -209,6 +209,7 @@ int nilfs_btnode_prepare_change_key(struct address_space *btnc, * We cannot call radix_tree_preload for the kernels older * than 2.6.23, because it is not exported for modules. */ +retry: err = radix_tree_preload(GFP_NOFS & ~__GFP_HIGHMEM); if (err) goto failed_unlock; @@ -219,7 +220,6 @@ int nilfs_btnode_prepare_change_key(struct address_space *btnc, (unsigned long long)oldkey, (unsigned long long)newkey); -retry: spin_lock_irq(&btnc->tree_lock); err = radix_tree_insert(&btnc->page_tree, newkey, obh->b_page); spin_unlock_irq(&btnc->tree_lock); -- cgit v0.10.2 From 38bddf04bcfe661fbdab94888c3b72c32f6873b3 Mon Sep 17 00:00:00 2001 From: Toru UCHIYAMA Date: Sun, 30 Aug 2009 22:04:07 -0700 Subject: gianfar: gfar_remove needs to call unregister_netdev() This patch solves the problem that the Oops(BUG_ON) occurs by rmmod. # rmmod gianfar_driver ------------[ cut here ]------------ Kernel BUG at c01fec48 [verbose debug info unavailable] Oops: Exception in kernel mode, sig: 5 [#1] MPC837x MDS Modules linked in: gianfar_driver(-) usb_storage scsi_wait_scan NIP: c01fec48 LR: c01febf4 CTR: c01feba8 REGS: dec5bd60 TRAP: 0700 Tainted: G W (2.6.31-rc2) MSR: 00029032 CR: 22000424 XER: 20000000 TASK = dec4cac0[1135] 'rmmod' THREAD: dec5a000 GPR00: 00000002 dec5be10 dec4cac0 dfba1820 c035d444 c035d478 ffffffff 00000000 GPR08: 0000002b 00000001 dfba193c 00000001 22000424 10019b34 1ffcb000 00000000 GPR16: 10012008 00000000 bf82ebe0 100017ec bf82ebec bf82ebe8 bf82ebd0 00000880 GPR24: 00000000 bf82ebf0 c03532f0 c03532e4 c036b594 dfba183c dfba1800 dfba1820 NIP [c01fec48] free_netdev+0xa0/0xb8 LR [c01febf4] free_netdev+0x4c/0xb8 Call Trace: [dec5be10] [c01febf4] free_netdev+0x4c/0xb8 (unreliable) [dec5be30] [e105f290] gfar_remove+0x50/0x68 [gianfar_driver] [dec5be40] [c01ec534] of_platform_device_remove+0x30/0x44 [dec5be50] [c0181760] __device_release_driver+0x68/0xc8 [dec5be60] [c0181868] driver_detach+0xa8/0xac [dec5be80] [c0180814] bus_remove_driver+0x9c/0xd8 [dec5bea0] [c0181efc] driver_unregister+0x60/0x98 [dec5beb0] [c01ec650] of_unregister_driver+0x14/0x24 [dec5bec0] [e10631bc] gfar_exit+0x18/0x4bc [gianfar_driver] [dec5bed0] [c0047584] sys_delete_module+0x16c/0x228 [dec5bf40] [c00116bc] ret_from_syscall+0x0/0x38 --- Exception: c01 at 0xff3669c LR = 0x10000f34 Instruction dump: 409e0024 a07e00c0 7c63f050 4be74429 80010024 bba10014 38210020 7c0803a6 4e800020 68000003 3160ffff 7d2b0110 <0f090000> 38000004 387e01f0 901e01d4 ---[ end trace 8c595bcd37230a0f ]--- localhost kernel: ------------[ cut here ]------------ Signed-off-by: Toru UCHIYAMA uchiyama.toru@jp.fujitsu.com Signed-off-by: David S. Miller diff --git a/drivers/net/gianfar.c b/drivers/net/gianfar.c index e212f2c..24f7ca5 100644 --- a/drivers/net/gianfar.c +++ b/drivers/net/gianfar.c @@ -491,6 +491,7 @@ static int gfar_remove(struct of_device *ofdev) dev_set_drvdata(&ofdev->dev, NULL); + unregister_netdev(dev); iounmap(priv->regs); free_netdev(priv->ndev); -- cgit v0.10.2 From 3746b6178070958279010d112703bca9cdc15e0a Mon Sep 17 00:00:00 2001 From: Michael Krufky Date: Sun, 12 Jul 2009 23:30:14 -0300 Subject: V4L/DVB (12446): sms1xxx: restore GPIO functionality for all Hauppauge devices Previous changesets broke Hauppauge devices and their GPIO configurations. This changeset restores the LED & LNA functionality. Signed-off-by: Michael Krufky Signed-off-by: Mauro Carvalho Chehab diff --git a/drivers/media/dvb/siano/smsdvb.c b/drivers/media/dvb/siano/smsdvb.c index 3ee1c39..266033a 100644 --- a/drivers/media/dvb/siano/smsdvb.c +++ b/drivers/media/dvb/siano/smsdvb.c @@ -325,6 +325,16 @@ static int smsdvb_sendrequest_and_wait(struct smsdvb_client_t *client, 0 : -ETIME; } +static inline int led_feedback(struct smsdvb_client_t *client) +{ + if (client->fe_status & FE_HAS_LOCK) + return sms_board_led_feedback(client->coredev, + (client->sms_stat_dvb.ReceptionData.BER + == 0) ? SMS_LED_HI : SMS_LED_LO); + else + return sms_board_led_feedback(client->coredev, SMS_LED_OFF); +} + static int smsdvb_read_status(struct dvb_frontend *fe, fe_status_t *stat) { struct smsdvb_client_t *client; @@ -332,6 +342,8 @@ static int smsdvb_read_status(struct dvb_frontend *fe, fe_status_t *stat) *stat = client->fe_status; + led_feedback(client); + return 0; } @@ -342,6 +354,8 @@ static int smsdvb_read_ber(struct dvb_frontend *fe, u32 *ber) *ber = client->sms_stat_dvb.ReceptionData.BER; + led_feedback(client); + return 0; } @@ -359,6 +373,8 @@ static int smsdvb_read_signal_strength(struct dvb_frontend *fe, u16 *strength) (client->sms_stat_dvb.ReceptionData.InBandPwr + 95) * 3 / 2; + led_feedback(client); + return 0; } @@ -369,6 +385,8 @@ static int smsdvb_read_snr(struct dvb_frontend *fe, u16 *snr) *snr = client->sms_stat_dvb.ReceptionData.SNR; + led_feedback(client); + return 0; } @@ -379,6 +397,8 @@ static int smsdvb_read_ucblocks(struct dvb_frontend *fe, u32 *ucblocks) *ucblocks = client->sms_stat_dvb.ReceptionData.ErrorTSPackets; + led_feedback(client); + return 0; } @@ -404,6 +424,8 @@ static int smsdvb_set_frontend(struct dvb_frontend *fe, u32 Data[3]; } Msg; + int ret; + client->fe_status = FE_HAS_SIGNAL; client->event_fe_state = -1; client->event_unc_state = -1; @@ -426,6 +448,23 @@ static int smsdvb_set_frontend(struct dvb_frontend *fe, case BANDWIDTH_AUTO: return -EOPNOTSUPP; default: return -EINVAL; } + /* Disable LNA, if any. An error is returned if no LNA is present */ + ret = sms_board_lna_control(client->coredev, 0); + if (ret == 0) { + fe_status_t status; + + /* tune with LNA off at first */ + ret = smsdvb_sendrequest_and_wait(client, &Msg, sizeof(Msg), + &client->tune_done); + + smsdvb_read_status(fe, &status); + + if (status & FE_HAS_LOCK) + return ret; + + /* previous tune didnt lock - enable LNA and tune again */ + sms_board_lna_control(client->coredev, 1); + } return smsdvb_sendrequest_and_wait(client, &Msg, sizeof(Msg), &client->tune_done); @@ -451,6 +490,8 @@ static int smsdvb_init(struct dvb_frontend *fe) struct smsdvb_client_t *client = container_of(fe, struct smsdvb_client_t, frontend); + sms_board_power(client->coredev, 1); + sms_board_dvb3_event(client, DVB3_EVENT_INIT); return 0; } @@ -460,6 +501,9 @@ static int smsdvb_sleep(struct dvb_frontend *fe) struct smsdvb_client_t *client = container_of(fe, struct smsdvb_client_t, frontend); + sms_board_led_feedback(client->coredev, SMS_LED_OFF); + sms_board_power(client->coredev, 0); + sms_board_dvb3_event(client, DVB3_EVENT_SLEEP); return 0; -- cgit v0.10.2 From f2e26ae7c8c077d001c77b330130f98e42ccad70 Mon Sep 17 00:00:00 2001 From: Mauro Carvalho Chehab Date: Wed, 12 Aug 2009 20:21:44 -0300 Subject: V4L/DVB (12449): adds webcam for Micron device MT9M111 0x143A to em28xx [mchehab@redhat.com: fix merge conflict and a few CodingStyle issues] Signed-off-by: Steve Gotthardt Signed-off-by: Mauro Carvalho Chehab diff --git a/drivers/media/video/em28xx/em28xx-cards.c b/drivers/media/video/em28xx/em28xx-cards.c index ed281f5..494560e 100644 --- a/drivers/media/video/em28xx/em28xx-cards.c +++ b/drivers/media/video/em28xx/em28xx-cards.c @@ -1730,6 +1730,25 @@ static inline void em28xx_set_model(struct em28xx *dev) EM28XX_I2C_FREQ_100_KHZ; } + +/* FIXME: Should be replaced by a proper mt9m111 driver */ +static int em28xx_initialize_mt9m111(struct em28xx *dev) +{ + int i; + unsigned char regs[][3] = { + { 0x0d, 0x00, 0x01, }, /* reset and use defaults */ + { 0x0d, 0x00, 0x00, }, + { 0x0a, 0x00, 0x21, }, + { 0x21, 0x04, 0x00, }, /* full readout speed, no row/col skipping */ + }; + + for (i = 0; i < ARRAY_SIZE(regs); i++) + i2c_master_send(&dev->i2c_client, ®s[i][0], 3); + + return 0; +} + + /* FIXME: Should be replaced by a proper mt9m001 driver */ static int em28xx_initialize_mt9m001(struct em28xx *dev) { @@ -1758,7 +1777,7 @@ static int em28xx_initialize_mt9m001(struct em28xx *dev) /* HINT method: webcam I2C chips * - * This method work for webcams with Micron sensors + * This method works for webcams with Micron sensors */ static int em28xx_hint_sensor(struct em28xx *dev) { @@ -1804,6 +1823,23 @@ static int em28xx_hint_sensor(struct em28xx *dev) dev->vinctl = 0x00; break; + + case 0x143a: /* MT9M111 as found in the ECS G200 */ + dev->model = EM2750_BOARD_UNKNOWN; + em28xx_set_model(dev); + + sensor_name = "mt9m111"; + dev->board.xclk = EM28XX_XCLK_FREQUENCY_48MHZ; + dev->em28xx_sensor = EM28XX_MT9M111; + em28xx_initialize_mt9m111(dev); + dev->sensor_xres = 640; + dev->sensor_yres = 512; + + dev->vinmode = 0x0a; + dev->vinctl = 0x00; + + break; + case 0x8431: dev->model = EM2750_BOARD_UNKNOWN; em28xx_set_model(dev); @@ -1820,7 +1856,7 @@ static int em28xx_hint_sensor(struct em28xx *dev) break; default: - printk("Unknown Micron Sensor 0x%04x\n", be16_to_cpu(version)); + printk("Unknown Micron Sensor 0x%04x\n", version); return -EINVAL; } diff --git a/drivers/media/video/em28xx/em28xx.h b/drivers/media/video/em28xx/em28xx.h index 8c2dc38..a2add61 100644 --- a/drivers/media/video/em28xx/em28xx.h +++ b/drivers/media/video/em28xx/em28xx.h @@ -367,6 +367,7 @@ enum em28xx_sensor { EM28XX_NOSENSOR = 0, EM28XX_MT9V011, EM28XX_MT9M001, + EM28XX_MT9M111, }; enum em28xx_adecoder { -- cgit v0.10.2 From ef2d12ce12117bb97fa35bbcf677c28e14667efa Mon Sep 17 00:00:00 2001 From: Udi Atar Date: Sun, 28 Jun 2009 04:22:55 -0300 Subject: V4L/DVB (12450): Siano: Fixed SDIO compilation bugs Fixed SDIO compilation bugs Also fixed a memory overrun issue in buffer management. Signed-off-by: Udi Atar Signed-off-by: Mauro Carvalho Chehab diff --git a/drivers/media/dvb/siano/smssdio.c b/drivers/media/dvb/siano/smssdio.c index dfaa49a..d1d652e 100644 --- a/drivers/media/dvb/siano/smssdio.c +++ b/drivers/media/dvb/siano/smssdio.c @@ -46,6 +46,7 @@ #define SMSSDIO_DATA 0x00 #define SMSSDIO_INT 0x04 +#define SMSSDIO_BLOCK_SIZE 128 static const struct sdio_device_id smssdio_ids[] = { {SDIO_DEVICE(SDIO_VENDOR_ID_SIANO, SDIO_DEVICE_ID_SIANO_STELLAR), @@ -85,7 +86,8 @@ static int smssdio_sendrequest(void *context, void *buffer, size_t size) sdio_claim_host(smsdev->func); while (size >= smsdev->func->cur_blksize) { - ret = sdio_write_blocks(smsdev->func, SMSSDIO_DATA, buffer, 1); + ret = sdio_memcpy_toio(smsdev->func, SMSSDIO_DATA, + buffer, smsdev->func->cur_blksize); if (ret) goto out; @@ -94,8 +96,8 @@ static int smssdio_sendrequest(void *context, void *buffer, size_t size) } if (size) { - ret = sdio_write_bytes(smsdev->func, SMSSDIO_DATA, - buffer, size); + ret = sdio_memcpy_toio(smsdev->func, SMSSDIO_DATA, + buffer, size); } out: @@ -125,23 +127,23 @@ static void smssdio_interrupt(struct sdio_func *func) */ isr = sdio_readb(func, SMSSDIO_INT, &ret); if (ret) { - dev_err(&smsdev->func->dev, - "Unable to read interrupt register!\n"); + sms_err("Unable to read interrupt register!\n"); return; } if (smsdev->split_cb == NULL) { cb = smscore_getbuffer(smsdev->coredev); if (!cb) { - dev_err(&smsdev->func->dev, - "Unable to allocate data buffer!\n"); + sms_err("Unable to allocate data buffer!\n"); return; } - ret = sdio_read_blocks(smsdev->func, cb->p, SMSSDIO_DATA, 1); + ret = sdio_memcpy_fromio(smsdev->func, + cb->p, + SMSSDIO_DATA, + SMSSDIO_BLOCK_SIZE); if (ret) { - dev_err(&smsdev->func->dev, - "Error %d reading initial block!\n", ret); + sms_err("Error %d reading initial block!\n", ret); return; } @@ -152,7 +154,10 @@ static void smssdio_interrupt(struct sdio_func *func) return; } - size = hdr->msgLength - smsdev->func->cur_blksize; + if (hdr->msgLength > smsdev->func->cur_blksize) + size = hdr->msgLength - smsdev->func->cur_blksize; + else + size = 0; } else { cb = smsdev->split_cb; hdr = cb->p; @@ -162,23 +167,24 @@ static void smssdio_interrupt(struct sdio_func *func) smsdev->split_cb = NULL; } - if (hdr->msgLength > smsdev->func->cur_blksize) { + if (size) { void *buffer; - size = ALIGN(size, 128); - buffer = cb->p + hdr->msgLength; + buffer = cb->p + (hdr->msgLength - size); + size = ALIGN(size, SMSSDIO_BLOCK_SIZE); - BUG_ON(smsdev->func->cur_blksize != 128); + BUG_ON(smsdev->func->cur_blksize != SMSSDIO_BLOCK_SIZE); /* * First attempt to transfer all of it in one go... */ - ret = sdio_read_blocks(smsdev->func, buffer, - SMSSDIO_DATA, size / 128); + ret = sdio_memcpy_fromio(smsdev->func, + buffer, + SMSSDIO_DATA, + size); if (ret && ret != -EINVAL) { smscore_putbuffer(smsdev->coredev, cb); - dev_err(&smsdev->func->dev, - "Error %d reading data from card!\n", ret); + sms_err("Error %d reading data from card!\n", ret); return; } @@ -191,12 +197,12 @@ static void smssdio_interrupt(struct sdio_func *func) */ if (ret == -EINVAL) { while (size) { - ret = sdio_read_blocks(smsdev->func, - buffer, SMSSDIO_DATA, 1); + ret = sdio_memcpy_fromio(smsdev->func, + buffer, SMSSDIO_DATA, + smsdev->func->cur_blksize); if (ret) { smscore_putbuffer(smsdev->coredev, cb); - dev_err(&smsdev->func->dev, - "Error %d reading " + sms_err("Error %d reading " "data from card!\n", ret); return; } @@ -269,7 +275,7 @@ static int smssdio_probe(struct sdio_func *func, if (ret) goto release; - ret = sdio_set_block_size(func, 128); + ret = sdio_set_block_size(func, SMSSDIO_BLOCK_SIZE); if (ret) goto disable; -- cgit v0.10.2 From 31e0ad693fb4e1d1be19dbe1c4f5a1ab9978e810 Mon Sep 17 00:00:00 2001 From: Udi Atar Date: Thu, 13 Aug 2009 16:30:25 -0300 Subject: V4L/DVB (12451): Update KConfig File to enable SDIO and USB interfaces Update KConfig file to enbale selection of SDIO and USB interfaces, and add dependancy on relevant modules. [mchehab@redhat.com: fix merge conflicts, remove default: m, add missing endmenu] Signed-off-by: Udi Atar Signed-off-by: Mauro Carvalho Chehab diff --git a/drivers/media/dvb/siano/Kconfig b/drivers/media/dvb/siano/Kconfig index 88847d1..8c1aed7 100644 --- a/drivers/media/dvb/siano/Kconfig +++ b/drivers/media/dvb/siano/Kconfig @@ -2,25 +2,33 @@ # Siano Mobile Silicon Digital TV device configuration # -config DVB_SIANO_SMS1XXX - tristate "Siano SMS1XXX USB dongle support" - depends on DVB_CORE && USB && INPUT +config SMS_SIANO_MDTV + tristate "Siano SMS1xxx based MDTV receiver" + depends on DVB_CORE && INPUT ---help--- - Choose Y here if you have a USB dongle with a SMS1XXX chipset. + Choose Y or M here if you have MDTV receiver with a Siano chipset. - To compile this driver as a module, choose M here: the - module will be called sms1xxx. + To compile this driver as a module, choose M here + (The module will be called smsmdtv). -config DVB_SIANO_SMS1XXX_SMS_IDS - bool "Enable support for Siano Mobile Silicon default USB IDs" - depends on DVB_SIANO_SMS1XXX - default y - ---help--- - Choose Y here if you have a USB dongle with a SMS1XXX chipset - that uses Siano Mobile Silicon's default usb vid:pid. + Further documentation on this driver can be found on the WWW + at http://www.siano-ms.com/ + +if SMS_SIANO_MDTV +menu "Siano module components" - Choose N here if you would prefer to use Siano's external driver. +# Hardware interfaces support - Further documentation on this driver can be found on the WWW at - . +config SMS_USB_DRV + tristate "USB interface support" + depends on DVB_CORE && USB + ---help--- + Choose if you would like to have Siano's support for USB interface +config SMS_SDIO_DRV + tristate "SDIO interface support" + depends on DVB_CORE && MMC + ---help--- + Choose if you would like to have Siano's support for SDIO interface +endmenu +endif # SMS_SIANO_MDTV diff --git a/drivers/media/dvb/siano/Makefile b/drivers/media/dvb/siano/Makefile index c6644d9..c54140b 100644 --- a/drivers/media/dvb/siano/Makefile +++ b/drivers/media/dvb/siano/Makefile @@ -1,8 +1,9 @@ -sms1xxx-objs := smscoreapi.o sms-cards.o smsendian.o smsir.o -obj-$(CONFIG_DVB_SIANO_SMS1XXX) += sms1xxx.o -obj-$(CONFIG_DVB_SIANO_SMS1XXX) += smsusb.o -obj-$(CONFIG_DVB_SIANO_SMS1XXX) += smsdvb.o +smsmdtv-objs := smscoreapi.o sms-cards.o smsendian.o smsir.o + +obj-$(CONFIG_SMS_SIANO_MDTV) += smsmdtv.o smsdvb.o +obj-$(CONFIG_SMS_USB_DRV) += smsusb.o +obj-$(CONFIG_SMS_SDIO_DRV) += smssdio.o EXTRA_CFLAGS += -Idrivers/media/dvb/dvb-core -- cgit v0.10.2 From 7b808924d65a4d1a0332d0043e02e9eb5dafe32b Mon Sep 17 00:00:00 2001 From: Roel Kluin Date: Tue, 11 Aug 2009 08:10:25 -0300 Subject: V4L/DVB (12457): zr364: wrong indexes The order of indexes is reversed Signed-off-by: Roel Kluin Signed-off-by: Antoine Jacquet Signed-off-by: Mauro Carvalho Chehab diff --git a/drivers/media/video/zr364xx.c b/drivers/media/video/zr364xx.c index fc976f4..2622a6e 100644 --- a/drivers/media/video/zr364xx.c +++ b/drivers/media/video/zr364xx.c @@ -695,7 +695,7 @@ static int zr364xx_release(struct file *file) for (i = 0; i < 2; i++) { err = send_control_msg(udev, 1, init[cam->method][i].value, - 0, init[i][cam->method].bytes, + 0, init[cam->method][i].bytes, init[cam->method][i].size); if (err < 0) { dev_err(&udev->dev, "error during release sequence\n"); -- cgit v0.10.2 From f4c5e80faba8ae420d7dc5d9237cc1e0262d7386 Mon Sep 17 00:00:00 2001 From: Shine Liu Date: Thu, 20 Aug 2009 23:49:26 -0300 Subject: V4L/DVB (12495): em28xx: Don't call em28xx_ir_init when disable_ir is true We should call em28xx_ir_init(dev) only when disable_ir is true. Signed-off-by: Shine Liu Reviewed-by: Devin Heitmueller Signed-off-by: Mauro Carvalho Chehab diff --git a/drivers/media/video/em28xx/em28xx-cards.c b/drivers/media/video/em28xx/em28xx-cards.c index 494560e..1c2e544 100644 --- a/drivers/media/video/em28xx/em28xx-cards.c +++ b/drivers/media/video/em28xx/em28xx-cards.c @@ -2382,7 +2382,9 @@ void em28xx_card_setup(struct em28xx *dev) } em28xx_tuner_setup(dev); - em28xx_ir_init(dev); + + if(!disable_ir) + em28xx_ir_init(dev); } -- cgit v0.10.2 From b6b85048c059e3f085095e48e12ed3f7a92c88d4 Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Wed, 26 Aug 2009 03:34:16 -0300 Subject: V4L/DVB (12502): gspca - sn9c20x: Fix gscpa sn9c20x build errors. Reported-by: Toralf Forster Signed-off-by: Randy Dunlap Signed-off-by: Jean-Francois Moine Signed-off-by: Andrew Morton Signed-off-by: Mauro Carvalho Chehab diff --git a/drivers/media/video/gspca/Kconfig b/drivers/media/video/gspca/Kconfig index 34f46f2..e994dca 100644 --- a/drivers/media/video/gspca/Kconfig +++ b/drivers/media/video/gspca/Kconfig @@ -114,7 +114,7 @@ config USB_GSPCA_SN9C20X config USB_GSPCA_SN9C20X_EVDEV bool "Enable evdev support" - depends on USB_GSPCA_SN9C20X + depends on USB_GSPCA_SN9C20X && INPUT ---help--- Say Y here in order to enable evdev support for sn9c20x webcam button. -- cgit v0.10.2 From d95c5b0b905aa9b70521eeb83ad4aea85f5e5fd0 Mon Sep 17 00:00:00 2001 From: Joe Perches Date: Sun, 16 Aug 2009 20:03:51 -0300 Subject: V4L/DVB (12564a): MAINTAINERS: Update gspca sn9c20x name style To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Signed-off-by: Joe Perches Signed-off-by: Mauro Carvalho Chehab diff --git a/MAINTAINERS b/MAINTAINERS index 60299a9..8dca9d8 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -2239,8 +2239,7 @@ S: Maintained F: drivers/media/video/gspca/pac207.c GSPCA SN9C20X SUBDRIVER -P: Brian Johnson -M: brijohn@gmail.com +M: Brian Johnson L: linux-media@vger.kernel.org T: git git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6.git S: Maintained -- cgit v0.10.2 From 0f67a611629f84dd0afacd23d422b4b9c2558285 Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Mon, 31 Aug 2009 08:12:29 +0200 Subject: ALSA: hda - Add missing mux check for VT1708 In patch_vt1708(), the check of MUX nids is missing and this results in the -EINVAL error in accessing Input Source mixer element. Simpliy adding the call of get_mux_nids() fixes the problem. Reference: Novell bnc#534904 https://bugzilla.novell.com/show_bug.cgi?id=534904 Signed-off-by: Takashi Iwai diff --git a/sound/pci/hda/patch_via.c b/sound/pci/hda/patch_via.c index 9008b4b..e8f10b1 100644 --- a/sound/pci/hda/patch_via.c +++ b/sound/pci/hda/patch_via.c @@ -1395,6 +1395,7 @@ static int patch_vt1708(struct hda_codec *codec) if (!spec->adc_nids && spec->input_mux) { spec->adc_nids = vt1708_adc_nids; spec->num_adc_nids = ARRAY_SIZE(vt1708_adc_nids); + get_mux_nids(codec); spec->mixers[spec->num_mixers] = vt1708_capture_mixer; spec->num_mixers++; } -- cgit v0.10.2 From a3f730af7e33cea10ea66f05b2565fde1f9512df Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Mon, 31 Aug 2009 08:15:26 +0200 Subject: ALSA: hda - Fix MacBookPro 3,1/4,1 quirk with ALC889A This patch fixes the wrong headphone output routing for MacBookPro 3,1/4,1 quirk with ALC889A codec, which caused the silent headphone output. Also, this gives the individual Headphone and Speaker volume controls. Reference: kernel bug#14078 http://bugzilla.kernel.org/show_bug.cgi?id=14078 Signed-off-by: Takashi Iwai Cc: diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c index 6f683e4..30eeb30 100644 --- a/sound/pci/hda/patch_realtek.c +++ b/sound/pci/hda/patch_realtek.c @@ -6423,9 +6423,9 @@ static struct hda_verb alc885_mbp_ch2_init[] = { }; /* - * 6ch mode + * 4ch mode */ -static struct hda_verb alc885_mbp_ch6_init[] = { +static struct hda_verb alc885_mbp_ch4_init[] = { { 0x1a, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT }, { 0x1a, AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_UNMUTE}, { 0x1a, AC_VERB_SET_CONNECT_SEL, 0x01 }, @@ -6434,9 +6434,9 @@ static struct hda_verb alc885_mbp_ch6_init[] = { { } /* end */ }; -static struct hda_channel_mode alc885_mbp_6ch_modes[2] = { +static struct hda_channel_mode alc885_mbp_4ch_modes[2] = { { 2, alc885_mbp_ch2_init }, - { 6, alc885_mbp_ch6_init }, + { 4, alc885_mbp_ch4_init }, }; /* @@ -6497,10 +6497,11 @@ static struct snd_kcontrol_new alc882_base_mixer[] = { }; static struct snd_kcontrol_new alc885_mbp3_mixer[] = { - HDA_CODEC_VOLUME("Front Playback Volume", 0x0c, 0x00, HDA_OUTPUT), - HDA_BIND_MUTE ("Front Playback Switch", 0x0c, 0x02, HDA_INPUT), - HDA_CODEC_MUTE ("Speaker Playback Switch", 0x14, 0x00, HDA_OUTPUT), - HDA_CODEC_VOLUME("Line-Out Playback Volume", 0x0d, 0x00, HDA_OUTPUT), + HDA_CODEC_VOLUME("Speaker Playback Volume", 0x0c, 0x00, HDA_OUTPUT), + HDA_BIND_MUTE ("Speaker Playback Switch", 0x0c, 0x02, HDA_INPUT), + HDA_CODEC_VOLUME("Headphone Playback Volume", 0x0e, 0x00, HDA_OUTPUT), + HDA_BIND_MUTE ("Headphone Playback Switch", 0x0e, 0x02, HDA_INPUT), + HDA_CODEC_VOLUME("Surround Playback Volume", 0x0d, 0x00, HDA_OUTPUT), HDA_CODEC_VOLUME("Line Playback Volume", 0x0b, 0x02, HDA_INPUT), HDA_CODEC_MUTE ("Line Playback Switch", 0x0b, 0x02, HDA_INPUT), HDA_CODEC_VOLUME("Mic Playback Volume", 0x0b, 0x00, HDA_INPUT), @@ -6814,14 +6815,18 @@ static struct hda_verb alc885_mbp3_init_verbs[] = { {0x0d, AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_ZERO}, {0x0d, AC_VERB_SET_AMP_GAIN_MUTE, AMP_IN_MUTE(0)}, {0x0d, AC_VERB_SET_AMP_GAIN_MUTE, AMP_IN_MUTE(1)}, + /* HP mixer */ + {0x0e, AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_ZERO}, + {0x0e, AC_VERB_SET_AMP_GAIN_MUTE, AMP_IN_MUTE(0)}, + {0x0e, AC_VERB_SET_AMP_GAIN_MUTE, AMP_IN_MUTE(1)}, /* Front Pin: output 0 (0x0c) */ {0x14, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT}, {0x14, AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_UNMUTE}, {0x14, AC_VERB_SET_CONNECT_SEL, 0x00}, - /* HP Pin: output 0 (0x0d) */ + /* HP Pin: output 0 (0x0e) */ {0x15, AC_VERB_SET_PIN_WIDGET_CONTROL, 0xc4}, - {0x15, AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_MUTE}, - {0x15, AC_VERB_SET_CONNECT_SEL, 0x00}, + {0x15, AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_UNMUTE}, + {0x15, AC_VERB_SET_CONNECT_SEL, 0x02}, {0x15, AC_VERB_SET_UNSOLICITED_ENABLE, ALC880_HP_EVENT | AC_USRSP_EN}, /* Mic (rear) pin: input vref at 80% */ {0x18, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_VREF80}, @@ -7195,10 +7200,11 @@ static struct alc_config_preset alc882_presets[] = { .mixers = { alc885_mbp3_mixer, alc882_chmode_mixer }, .init_verbs = { alc885_mbp3_init_verbs, alc880_gpio1_init_verbs }, - .num_dacs = ARRAY_SIZE(alc882_dac_nids), + .num_dacs = 2, .dac_nids = alc882_dac_nids, - .channel_mode = alc885_mbp_6ch_modes, - .num_channel_mode = ARRAY_SIZE(alc885_mbp_6ch_modes), + .hp_nid = 0x04, + .channel_mode = alc885_mbp_4ch_modes, + .num_channel_mode = ARRAY_SIZE(alc885_mbp_4ch_modes), .input_mux = &alc882_capture_source, .dig_out_nid = ALC882_DIGOUT_NID, .dig_in_nid = ALC882_DIGIN_NID, -- cgit v0.10.2 From 8e254c1d183f0225ad21f9049641529e56cce4da Mon Sep 17 00:00:00 2001 From: Li Zefan Date: Mon, 31 Aug 2009 16:49:41 +0800 Subject: tracing/filters: Defer pred allocation init_preds() allocates about 5392 bytes of memory (on x86_32) for a TRACE_EVENT. With my config, at system boot total memory occupied is: 5392 * (642 + 15) == 3459KB 642 == cat available_events | wc -l 15 == number of dirs in events/ftrace That's quite a lot, so we'd better defer memory allocation util it's needed, that's when filter is used. Signed-off-by: Li Zefan Cc: Steven Rostedt Cc: Frederic Weisbecker Cc: Tom Zanussi Cc: Masami Hiramatsu LKML-Reference: <4A9B8EA5.6020700@cn.fujitsu.com> Signed-off-by: Ingo Molnar diff --git a/include/linux/ftrace_event.h b/include/linux/ftrace_event.h index ace2da9..7554804 100644 --- a/include/linux/ftrace_event.h +++ b/include/linux/ftrace_event.h @@ -133,7 +133,6 @@ struct ftrace_event_call { #define MAX_FILTER_PRED 32 #define MAX_FILTER_STR_VAL 128 -extern int init_preds(struct ftrace_event_call *call); extern void destroy_preds(struct ftrace_event_call *call); extern int filter_match_preds(struct ftrace_event_call *call, void *rec); extern int filter_current_check_discard(struct ftrace_event_call *call, diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h index f124c89..a8e3782 100644 --- a/include/linux/syscalls.h +++ b/include/linux/syscalls.h @@ -177,7 +177,6 @@ static void prof_sysexit_disable_##sname(struct ftrace_event_call *event_call) \ event_enter_##sname.id = id; \ set_syscall_enter_id(num, id); \ INIT_LIST_HEAD(&event_enter_##sname.fields); \ - init_preds(&event_enter_##sname); \ return 0; \ } \ TRACE_SYS_ENTER_PROFILE(sname); \ @@ -214,7 +213,6 @@ static void prof_sysexit_disable_##sname(struct ftrace_event_call *event_call) \ event_exit_##sname.id = id; \ set_syscall_exit_id(num, id); \ INIT_LIST_HEAD(&event_exit_##sname.fields); \ - init_preds(&event_exit_##sname); \ return 0; \ } \ TRACE_SYS_EXIT_PROFILE(sname); \ diff --git a/include/trace/ftrace.h b/include/trace/ftrace.h index 57c56a9..bfbc842 100644 --- a/include/trace/ftrace.h +++ b/include/trace/ftrace.h @@ -622,7 +622,6 @@ static int ftrace_raw_init_event_##call(void) \ return -ENODEV; \ event_##call.id = id; \ INIT_LIST_HEAD(&event_##call.fields); \ - init_preds(&event_##call); \ return 0; \ } \ \ diff --git a/kernel/trace/trace_events_filter.c b/kernel/trace/trace_events_filter.c index 9f03082..c6b2edf 100644 --- a/kernel/trace/trace_events_filter.c +++ b/kernel/trace/trace_events_filter.c @@ -309,7 +309,7 @@ void print_event_filter(struct ftrace_event_call *call, struct trace_seq *s) struct event_filter *filter = call->filter; mutex_lock(&event_mutex); - if (filter->filter_string) + if (filter && filter->filter_string) trace_seq_printf(s, "%s\n", filter->filter_string); else trace_seq_printf(s, "none\n"); @@ -322,7 +322,7 @@ void print_subsystem_event_filter(struct event_subsystem *system, struct event_filter *filter = system->filter; mutex_lock(&event_mutex); - if (filter->filter_string) + if (filter && filter->filter_string) trace_seq_printf(s, "%s\n", filter->filter_string); else trace_seq_printf(s, "none\n"); @@ -390,6 +390,9 @@ void destroy_preds(struct ftrace_event_call *call) struct event_filter *filter = call->filter; int i; + if (!filter) + return; + for (i = 0; i < MAX_FILTER_PRED; i++) { if (filter->preds[i]) filter_free_pred(filter->preds[i]); @@ -400,7 +403,7 @@ void destroy_preds(struct ftrace_event_call *call) call->filter = NULL; } -int init_preds(struct ftrace_event_call *call) +static int init_preds(struct ftrace_event_call *call) { struct event_filter *filter; struct filter_pred *pred; @@ -410,7 +413,6 @@ int init_preds(struct ftrace_event_call *call) if (!call->filter) return -ENOMEM; - call->filter_active = 0; filter->n_preds = 0; filter->preds = kzalloc(MAX_FILTER_PRED * sizeof(pred), GFP_KERNEL); @@ -432,7 +434,28 @@ oom: return -ENOMEM; } -EXPORT_SYMBOL_GPL(init_preds); + +static int init_subsystem_preds(struct event_subsystem *system) +{ + struct ftrace_event_call *call; + int err; + + list_for_each_entry(call, &ftrace_events, list) { + if (!call->define_fields) + continue; + + if (strcmp(call->system, system->name) != 0) + continue; + + if (!call->filter) { + err = init_preds(call); + if (err) + return err; + } + } + + return 0; +} enum { FILTER_DISABLE_ALL, @@ -449,6 +472,9 @@ static void filter_free_subsystem_preds(struct event_subsystem *system, if (!call->define_fields) continue; + if (strcmp(call->system, system->name) != 0) + continue; + if (flag == FILTER_INIT_NO_RESET) { call->filter->no_reset = false; continue; @@ -457,10 +483,8 @@ static void filter_free_subsystem_preds(struct event_subsystem *system, if (flag == FILTER_SKIP_NO_RESET && call->filter->no_reset) continue; - if (!strcmp(call->system, system->name)) { - filter_disable_preds(call); - remove_filter_string(call->filter); - } + filter_disable_preds(call); + remove_filter_string(call->filter); } } @@ -1094,6 +1118,10 @@ int apply_event_filter(struct ftrace_event_call *call, char *filter_string) mutex_lock(&event_mutex); + err = init_preds(call); + if (err) + goto out_unlock; + if (!strcmp(strstrip(filter_string), "0")) { filter_disable_preds(call); remove_filter_string(call->filter); @@ -1139,6 +1167,10 @@ int apply_subsystem_event_filter(struct event_subsystem *system, mutex_lock(&event_mutex); + err = init_subsystem_preds(system); + if (err) + goto out_unlock; + if (!strcmp(strstrip(filter_string), "0")) { filter_free_subsystem_preds(system, FILTER_DISABLE_ALL); remove_filter_string(system->filter); diff --git a/kernel/trace/trace_export.c b/kernel/trace/trace_export.c index 029a91f..df1bf6e 100644 --- a/kernel/trace/trace_export.c +++ b/kernel/trace/trace_export.c @@ -135,7 +135,6 @@ __attribute__((section("_ftrace_events"))) event_##call = { \ static int ftrace_raw_init_event_##call(void) \ { \ INIT_LIST_HEAD(&event_##call.fields); \ - init_preds(&event_##call); \ return 0; \ } \ -- cgit v0.10.2 From 60c3be387bb6cd39707d3ec0ebc324a0c96181f8 Mon Sep 17 00:00:00 2001 From: Bartlomiej Zolnierkiewicz Date: Sun, 30 Aug 2009 14:56:30 +0200 Subject: ata_piix: parallel scanning on PATA needs an extra locking Commit log for commit 517d3cc15b36392e518abab6bacbb72089658313 ("[libata] ata_piix: Enable parallel scan") says: This patch turns on parallel scanning for the ata_piix driver. This driver is used on most netbooks (no AHCI for cheap storage it seems). The scan is the dominating time factor in the kernel boot for these devices; with this flag it gets cut in half for the device I used for testing (eeepc). Alan took a look at the driver source and concluded that it ought to be safe to do for this driver. Alan has also checked with the hardware team. and it is all true but once we put all things together additional constraints for PATA controllers show up (some hardware registers have per-host not per-port atomicity) and we risk misprogramming the controller. I used the following test to check whether the issue is real: @@ -736,8 +736,20 @@ static void piix_set_piomode(struct ata_ (timings[pio][1] << 8); } pci_write_config_word(dev, master_port, master_data); - if (is_slave) + if (is_slave) { + if (ap->port_no == 0) { + u8 tmp = slave_data; + + while (slave_data == tmp) { + pci_read_config_byte(dev, slave_port, &tmp); + msleep(50); + } + + dev_printk(KERN_ERR, &dev->dev, "PATA parallel scan " + "race detected\n"); + } pci_write_config_byte(dev, slave_port, slave_data); + } /* Ensure the UDMA bit is off - it will be turned back on if UDMA is selected */ and it indeed triggered the error message. Lets fix all such races by adding an extra locking to ->set_piomode and ->set_dmamode methods for PATA controllers. [ Alan: would be better to take the host lock in libata-core for these cases so that we fix all the adapters in one swoop. "Looks fine as a temproary quickfix tho" ] Cc: Arjan van de Ven Acked-by: Alan Cox Cc: Jeff Garzik Signed-off-by: Bartlomiej Zolnierkiewicz Signed-off-by: Linus Torvalds diff --git a/drivers/ata/ata_piix.c b/drivers/ata/ata_piix.c index 56b8a3f..9ac4e37 100644 --- a/drivers/ata/ata_piix.c +++ b/drivers/ata/ata_piix.c @@ -664,6 +664,8 @@ static int piix_pata_prereset(struct ata_link *link, unsigned long deadline) return ata_sff_prereset(link, deadline); } +static DEFINE_SPINLOCK(piix_lock); + /** * piix_set_piomode - Initialize host controller PATA PIO timings * @ap: Port whose timings we are configuring @@ -677,8 +679,9 @@ static int piix_pata_prereset(struct ata_link *link, unsigned long deadline) static void piix_set_piomode(struct ata_port *ap, struct ata_device *adev) { - unsigned int pio = adev->pio_mode - XFER_PIO_0; struct pci_dev *dev = to_pci_dev(ap->host->dev); + unsigned long flags; + unsigned int pio = adev->pio_mode - XFER_PIO_0; unsigned int is_slave = (adev->devno != 0); unsigned int master_port= ap->port_no ? 0x42 : 0x40; unsigned int slave_port = 0x44; @@ -708,6 +711,8 @@ static void piix_set_piomode(struct ata_port *ap, struct ata_device *adev) if (adev->class == ATA_DEV_ATA) control |= 4; /* PPE enable */ + spin_lock_irqsave(&piix_lock, flags); + /* PIO configuration clears DTE unconditionally. It will be * programmed in set_dmamode which is guaranteed to be called * after set_piomode if any DMA mode is available. @@ -747,6 +752,8 @@ static void piix_set_piomode(struct ata_port *ap, struct ata_device *adev) udma_enable &= ~(1 << (2 * ap->port_no + adev->devno)); pci_write_config_byte(dev, 0x48, udma_enable); } + + spin_unlock_irqrestore(&piix_lock, flags); } /** @@ -764,6 +771,7 @@ static void piix_set_piomode(struct ata_port *ap, struct ata_device *adev) static void do_pata_set_dmamode(struct ata_port *ap, struct ata_device *adev, int isich) { struct pci_dev *dev = to_pci_dev(ap->host->dev); + unsigned long flags; u8 master_port = ap->port_no ? 0x42 : 0x40; u16 master_data; u8 speed = adev->dma_mode; @@ -777,6 +785,8 @@ static void do_pata_set_dmamode(struct ata_port *ap, struct ata_device *adev, in { 2, 1 }, { 2, 3 }, }; + spin_lock_irqsave(&piix_lock, flags); + pci_read_config_word(dev, master_port, &master_data); if (ap->udma_mask) pci_read_config_byte(dev, 0x48, &udma_enable); @@ -867,6 +877,8 @@ static void do_pata_set_dmamode(struct ata_port *ap, struct ata_device *adev, in /* Don't scribble on 0x48 if the controller does not support UDMA */ if (ap->udma_mask) pci_write_config_byte(dev, 0x48, udma_enable); + + spin_unlock_irqrestore(&piix_lock, flags); } /** -- cgit v0.10.2 From 1a37f184fa7824982a5f434c06981ec46a66cef7 Mon Sep 17 00:00:00 2001 From: Benjamin Herrenschmidt Date: Mon, 31 Aug 2009 13:48:16 +1000 Subject: lmb: Also remove __init from lmb_end_of_RAM() declaration in lmb.h My previous patch (commit 4f8ee2c9cc: "lmb: Remove __init from lmb_end_of_DRAM()") removed __init in lmb.c but missed the fact that it was also marked as such in the .h Signed-off-by: Benjamin Herrenschmidt Signed-off-by: Linus Torvalds diff --git a/include/linux/lmb.h b/include/linux/lmb.h index c46c895..2442e3f 100644 --- a/include/linux/lmb.h +++ b/include/linux/lmb.h @@ -51,7 +51,7 @@ extern u64 __init lmb_alloc_base(u64 size, extern u64 __init __lmb_alloc_base(u64 size, u64 align, u64 max_addr); extern u64 __init lmb_phys_mem_size(void); -extern u64 __init lmb_end_of_DRAM(void); +extern u64 lmb_end_of_DRAM(void); extern void __init lmb_enforce_memory_limit(u64 memory_limit); extern int __init lmb_is_reserved(u64 addr); extern int lmb_find(struct lmb_property *res); -- cgit v0.10.2 From 37d0892c5a94e208cf863e3b7bac014edee4346d Mon Sep 17 00:00:00 2001 From: Ian Kent Date: Tue, 1 Sep 2009 11:26:22 +0800 Subject: autofs4 - fix missed case when changing to use struct path In the recent change by Al Viro that changes verious subsystems to use "struct path" one case was missed in the autofs4 module which causes mounts to no longer expire. Signed-off-by: Ian Kent Signed-off-by: Linus Torvalds diff --git a/fs/autofs4/expire.c b/fs/autofs4/expire.c index aa39ae8..3da18d4 100644 --- a/fs/autofs4/expire.c +++ b/fs/autofs4/expire.c @@ -77,7 +77,7 @@ static int autofs4_mount_busy(struct vfsmount *mnt, struct dentry *dentry) } /* Update the expiry counter if fs is busy */ - if (!may_umount_tree(mnt)) { + if (!may_umount_tree(path.mnt)) { struct autofs_info *ino = autofs4_dentry_ino(top); ino->last_used = jiffies; goto done; -- cgit v0.10.2 From b91ab72b830e1494c2c7f8de05ccb2ab2c9cfb26 Mon Sep 17 00:00:00 2001 From: Clemens Ladisch Date: Tue, 1 Sep 2009 08:23:58 +0200 Subject: sound: oxygen: fix MCLK rate for 192 kHz playback Do not forget to program the MCLK ratio for the I2S output. Otherwise, the master clock frequency can be too high for the DACs at sample frequencies above 96 kHz. Signed-off-by: Clemens Ladisch Cc: Signed-off-by: Takashi Iwai diff --git a/sound/pci/oxygen/oxygen_pcm.c b/sound/pci/oxygen/oxygen_pcm.c index 3b5ca70..ef2345d 100644 --- a/sound/pci/oxygen/oxygen_pcm.c +++ b/sound/pci/oxygen/oxygen_pcm.c @@ -469,9 +469,11 @@ static int oxygen_multich_hw_params(struct snd_pcm_substream *substream, oxygen_write16_masked(chip, OXYGEN_I2S_MULTICH_FORMAT, oxygen_rate(hw_params) | chip->model.dac_i2s_format | + oxygen_i2s_mclk(hw_params) | oxygen_i2s_bits(hw_params), OXYGEN_I2S_RATE_MASK | OXYGEN_I2S_FORMAT_MASK | + OXYGEN_I2S_MCLK_MASK | OXYGEN_I2S_BITS_MASK); oxygen_update_dac_routing(chip); oxygen_update_spdif_source(chip); -- cgit v0.10.2 From 04a13c7c632e1fe04a5f6e6c83565d2559e37598 Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Tue, 1 Sep 2009 21:12:28 +0900 Subject: percpu: don't assume existence of cpu0 percpu incorrectly assumed that cpu0 was always there which led to the following warning and eventual oops on sparc machines w/o cpu0. WARNING: at mm/percpu.c:651 pcpu_map+0xdc/0x100() Modules linked in: Call Trace: [000000000045eb70] warn_slowpath_common+0x50/0xa0 [000000000045ebdc] warn_slowpath_null+0x1c/0x40 [00000000004d493c] pcpu_map+0xdc/0x100 [00000000004d59a4] pcpu_alloc+0x3e4/0x4e0 [00000000004d5af8] __alloc_percpu+0x18/0x40 [00000000005b112c] __percpu_counter_init+0x4c/0xc0 ... Unable to handle kernel NULL pointer dereference ... I7: Disabling lock debugging due to kernel taint Caller[000000000053c1b0]: sysfs_new_dirent+0x30/0x120 Caller[000000000053c7a4]: create_dir+0x24/0xc0 Caller[000000000053c870]: sysfs_create_dir+0x30/0x80 Caller[00000000005990e8]: kobject_add_internal+0xc8/0x200 ... Kernel panic - not syncing: Attempted to kill the idle task! This patch fixes the problem by backporting parts from devel branch to make percpu core not depend on the existence of cpu0. Signed-off-by: Tejun Heo Reported-by: Meelis Roos Cc: David Miller diff --git a/mm/percpu.c b/mm/percpu.c index 5fe3784..3311c89 100644 --- a/mm/percpu.c +++ b/mm/percpu.c @@ -197,7 +197,12 @@ static unsigned long pcpu_chunk_addr(struct pcpu_chunk *chunk, static bool pcpu_chunk_page_occupied(struct pcpu_chunk *chunk, int page_idx) { - return *pcpu_chunk_pagep(chunk, 0, page_idx) != NULL; + /* + * Any possible cpu id can be used here, so there's no need to + * worry about preemption or cpu hotplug. + */ + return *pcpu_chunk_pagep(chunk, raw_smp_processor_id(), + page_idx) != NULL; } /* set the pointer to a chunk in a page struct */ @@ -297,6 +302,14 @@ static struct pcpu_chunk *pcpu_chunk_addr_search(void *addr) return pcpu_first_chunk; } + /* + * The address is relative to unit0 which might be unused and + * thus unmapped. Offset the address to the unit space of the + * current processor before looking it up in the vmalloc + * space. Note that any possible cpu id can be used here, so + * there's no need to worry about preemption or cpu hotplug. + */ + addr += raw_smp_processor_id() * pcpu_unit_size; return pcpu_get_page_chunk(vmalloc_to_page(addr)); } -- cgit v0.10.2 From ce6c3997c2fce74d12e6d8887a1d8cdf024fa850 Mon Sep 17 00:00:00 2001 From: Dominik Brodowski Date: Fri, 7 Aug 2009 22:58:51 +0200 Subject: [CPUFREQ] Re-enable cpufreq suspend and resume code Commit 4bc5d3413503 is broken and causes regressions: (1) cpufreq_driver->resume() and ->suspend() were only called on __powerpc__, but you could set them on all architectures. In fact, ->resume() was defined and used before the PPC-related commit 42d4dc3f4e1e complained about in 4bc5d3413503. (2) Therfore, the resume functions in acpi_cpufreq and speedstep-smi would never be called. (3) This means speedstep-smi would be unusuable after suspend or resume. The _real_ problem was calling cpufreq_driver->get() with interrupts off, but it re-enabling interrupts on some platforms. Why is ->get() necessary? Some systems like to change the CPU frequency behind our back, especially during BIOS-intensive operations like suspend or resume. If such systems also use a CPU frequency-dependant timing loop, delays might be off by large factors. Therefore, we need to ascertain as soon as possible that the CPU frequency is indeed at the speed we think it is. You can do this two ways: either setting it anew, or trying to get it. The latter is what was done, the former also has the same IRQ issue. So, let's try something different: defer the checking to after interrupts are re-enabled, by calling cpufreq_update_policy() (via schedule_work()). Timings may be off until this later stage, so let's watch out for resume regressions caused by the deferred handling of frequency changes behind the kernel's back. Signed-off-by: Dominik Brodowski Signed-off-by: Dave Jones diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c index fd69086..2968ed6 100644 --- a/drivers/cpufreq/cpufreq.c +++ b/drivers/cpufreq/cpufreq.c @@ -1250,20 +1250,11 @@ static int cpufreq_suspend(struct sys_device *sysdev, pm_message_t pmsg) { int ret = 0; -#ifdef __powerpc__ int cpu = sysdev->id; - unsigned int cur_freq = 0; struct cpufreq_policy *cpu_policy; dprintk("suspending cpu %u\n", cpu); - /* - * This whole bogosity is here because Powerbooks are made of fail. - * No sane platform should need any of the code below to be run. - * (it's entirely the wrong thing to do, as driver->get may - * reenable interrupts on some architectures). - */ - if (!cpu_online(cpu)) return 0; @@ -1282,47 +1273,13 @@ static int cpufreq_suspend(struct sys_device *sysdev, pm_message_t pmsg) if (cpufreq_driver->suspend) { ret = cpufreq_driver->suspend(cpu_policy, pmsg); - if (ret) { + if (ret) printk(KERN_ERR "cpufreq: suspend failed in ->suspend " "step on CPU %u\n", cpu_policy->cpu); - goto out; - } - } - - if (cpufreq_driver->flags & CPUFREQ_CONST_LOOPS) - goto out; - - if (cpufreq_driver->get) - cur_freq = cpufreq_driver->get(cpu_policy->cpu); - - if (!cur_freq || !cpu_policy->cur) { - printk(KERN_ERR "cpufreq: suspend failed to assert current " - "frequency is what timing core thinks it is.\n"); - goto out; - } - - if (unlikely(cur_freq != cpu_policy->cur)) { - struct cpufreq_freqs freqs; - - if (!(cpufreq_driver->flags & CPUFREQ_PM_NO_WARN)) - dprintk("Warning: CPU frequency is %u, " - "cpufreq assumed %u kHz.\n", - cur_freq, cpu_policy->cur); - - freqs.cpu = cpu; - freqs.old = cpu_policy->cur; - freqs.new = cur_freq; - - srcu_notifier_call_chain(&cpufreq_transition_notifier_list, - CPUFREQ_SUSPENDCHANGE, &freqs); - adjust_jiffies(CPUFREQ_SUSPENDCHANGE, &freqs); - - cpu_policy->cur = cur_freq; } out: cpufreq_cpu_put(cpu_policy); -#endif /* __powerpc__ */ return ret; } @@ -1330,24 +1287,21 @@ out: * cpufreq_resume - restore proper CPU frequency handling after resume * * 1.) resume CPUfreq hardware support (cpufreq_driver->resume()) - * 2.) if ->target and !CPUFREQ_CONST_LOOPS: verify we're in sync - * 3.) schedule call cpufreq_update_policy() ASAP as interrupts are - * restored. + * 2.) schedule call cpufreq_update_policy() ASAP as interrupts are + * restored. It will verify that the current freq is in sync with + * what we believe it to be. This is a bit later than when it + * should be, but nonethteless it's better than calling + * cpufreq_driver->get() here which might re-enable interrupts... */ static int cpufreq_resume(struct sys_device *sysdev) { int ret = 0; -#ifdef __powerpc__ int cpu = sysdev->id; struct cpufreq_policy *cpu_policy; dprintk("resuming cpu %u\n", cpu); - /* As with the ->suspend method, all the code below is - * only necessary because Powerbooks suck. - * See commit 42d4dc3f4e1e for jokes. */ - if (!cpu_online(cpu)) return 0; @@ -1373,45 +1327,10 @@ static int cpufreq_resume(struct sys_device *sysdev) } } - if (!(cpufreq_driver->flags & CPUFREQ_CONST_LOOPS)) { - unsigned int cur_freq = 0; - - if (cpufreq_driver->get) - cur_freq = cpufreq_driver->get(cpu_policy->cpu); - - if (!cur_freq || !cpu_policy->cur) { - printk(KERN_ERR "cpufreq: resume failed to assert " - "current frequency is what timing core " - "thinks it is.\n"); - goto out; - } - - if (unlikely(cur_freq != cpu_policy->cur)) { - struct cpufreq_freqs freqs; - - if (!(cpufreq_driver->flags & CPUFREQ_PM_NO_WARN)) - dprintk("Warning: CPU frequency " - "is %u, cpufreq assumed %u kHz.\n", - cur_freq, cpu_policy->cur); - - freqs.cpu = cpu; - freqs.old = cpu_policy->cur; - freqs.new = cur_freq; - - srcu_notifier_call_chain( - &cpufreq_transition_notifier_list, - CPUFREQ_RESUMECHANGE, &freqs); - adjust_jiffies(CPUFREQ_RESUMECHANGE, &freqs); - - cpu_policy->cur = cur_freq; - } - } - -out: schedule_work(&cpu_policy->update); + fail: cpufreq_cpu_put(cpu_policy); -#endif /* __powerpc__ */ return ret; } -- cgit v0.10.2 From c295fc05789653ef24f296299df7c5f92fe74dce Mon Sep 17 00:00:00 2001 From: Nikanth Karthikesan Date: Tue, 1 Sep 2009 22:40:15 +0200 Subject: block: Allow changing max_sectors_kb above the default 512 The patch "block: Use accessor functions for queue limits" (ae03bf639a5027d27270123f5f6e3ee6a412781d) changed queue_max_sectors_store() to use blk_queue_max_sectors() instead of directly assigning the value. But blk_queue_max_sectors() differs a bit 1. It sets both max_sectors_kb, and max_hw_sectors_kb 2. Never allows one to change max_sectors_kb above BLK_DEF_MAX_SECTORS. If one specifies a value greater then max_hw_sectors is set to that value but max_sectors is set to BLK_DEF_MAX_SECTORS I am not sure whether blk_queue_max_sectors() should be changed, as it seems to be that way for a long time. And there may be callers dependent on that behaviour. This patch simply reverts to the older way of directly assigning the value to max_sectors as it was before. Signed-off-by: Nikanth Karthikesan Signed-off-by: Jens Axboe diff --git a/block/blk-sysfs.c b/block/blk-sysfs.c index 418d636..d3aa2aa 100644 --- a/block/blk-sysfs.c +++ b/block/blk-sysfs.c @@ -133,7 +133,7 @@ queue_max_sectors_store(struct request_queue *q, const char *page, size_t count) return -EINVAL; spin_lock_irq(q->queue_lock); - blk_queue_max_sectors(q, max_sectors_kb << 1); + q->limits.max_sectors = max_sectors_kb << 1; spin_unlock_irq(q->queue_lock); return ret; -- cgit v0.10.2 From 3725867dccfb83e4b0cff64e916a04258f300591 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Tue, 1 Sep 2009 14:03:08 -0400 Subject: xfs: actually enable the swapext compat handler Fix a small typo in the compat ioctl handler that cause the swapext compat handler to never be called. Signed-off-by: Christoph Hellwig Reviewed-by: Torsten Kaiser Tested-by: Torsten Kaiser Reviewed-by: Eric Sandeen Reviewed-by: Felix Blyakher Signed-off-by: Felix Blyakher diff --git a/fs/xfs/linux-2.6/xfs_ioctl32.c b/fs/xfs/linux-2.6/xfs_ioctl32.c index 0882d16..eafcc7c 100644 --- a/fs/xfs/linux-2.6/xfs_ioctl32.c +++ b/fs/xfs/linux-2.6/xfs_ioctl32.c @@ -619,7 +619,7 @@ xfs_file_compat_ioctl( case XFS_IOC_GETVERSION_32: cmd = _NATIVE_IOC(cmd, long); return xfs_file_ioctl(filp, cmd, p); - case XFS_IOC_SWAPEXT: { + case XFS_IOC_SWAPEXT_32: { struct xfs_swapext sxp; struct compat_xfs_swapext __user *sxu = arg; -- cgit v0.10.2 From d66ee0587c3927aea5178a822976c7c853d815fe Mon Sep 17 00:00:00 2001 From: Jarek Poplawski Date: Sun, 30 Aug 2009 23:15:36 +0000 Subject: net: sk_free() should be allowed right after sk_alloc() After commit 2b85a34e911bf483c27cfdd124aeb1605145dc80 (net: No more expensive sock_hold()/sock_put() on each tx) sk_free() frees socks conditionally and depends on sk_wmem_alloc being set e.g. in sock_init_data(). But in some cases sk_free() is called earlier, usually after other alloc errors. Fix is to move sk_wmem_alloc initialization from sock_init_data() to sk_alloc() itself. Signed-off-by: Jarek Poplawski Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller diff --git a/net/core/sock.c b/net/core/sock.c index bbb25be..7633422 100644 --- a/net/core/sock.c +++ b/net/core/sock.c @@ -1025,6 +1025,7 @@ struct sock *sk_alloc(struct net *net, int family, gfp_t priority, sk->sk_prot = sk->sk_prot_creator = prot; sock_lock_init(sk); sock_net_set(sk, get_net(net)); + atomic_set(&sk->sk_wmem_alloc, 1); } return sk; @@ -1872,7 +1873,6 @@ void sock_init_data(struct socket *sock, struct sock *sk) */ smp_wmb(); atomic_set(&sk->sk_refcnt, 1); - atomic_set(&sk->sk_wmem_alloc, 1); atomic_set(&sk->sk_drops, 0); } EXPORT_SYMBOL(sock_init_data); -- cgit v0.10.2 From 2fbd3da3877ad8d923b055e5996f80b4d4a6daf4 Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Tue, 1 Sep 2009 17:59:25 -0700 Subject: pkt_sched: Revert tasklet_hrtimer changes. These are full of unresolved problems, mainly that conversions don't work 1-1 from hrtimers to tasklet_hrtimers because unlike hrtimers tasklets can't be killed from softirq context. And when a qdisc gets reset, that's exactly what we need to do here. We'll work this out in the net-next-2.6 tree and if warranted we'll backport that work to -stable. This reverts the following 3 changesets: a2cb6a4dd470d7a64255a10b843b0d188416b78f ("pkt_sched: Fix bogon in tasklet_hrtimer changes.") 38acce2d7983632100a9ff3fd20295f6e34074a8 ("pkt_sched: Convert CBQ to tasklet_hrtimer.") ee5f9757ea17759e1ce5503bdae2b07e48e32af9 ("pkt_sched: Convert qdisc_watchdog to tasklet_hrtimer") Signed-off-by: David S. Miller diff --git a/include/net/pkt_sched.h b/include/net/pkt_sched.h index 7eafb8d..82a3191 100644 --- a/include/net/pkt_sched.h +++ b/include/net/pkt_sched.h @@ -61,8 +61,8 @@ psched_tdiff_bounded(psched_time_t tv1, psched_time_t tv2, psched_time_t bound) } struct qdisc_watchdog { - struct tasklet_hrtimer timer; - struct Qdisc *qdisc; + struct hrtimer timer; + struct Qdisc *qdisc; }; extern void qdisc_watchdog_init(struct qdisc_watchdog *wd, struct Qdisc *qdisc); diff --git a/net/sched/sch_api.c b/net/sched/sch_api.c index 92e6f3a..24d17ce 100644 --- a/net/sched/sch_api.c +++ b/net/sched/sch_api.c @@ -458,7 +458,7 @@ EXPORT_SYMBOL(qdisc_warn_nonwc); static enum hrtimer_restart qdisc_watchdog(struct hrtimer *timer) { struct qdisc_watchdog *wd = container_of(timer, struct qdisc_watchdog, - timer.timer); + timer); wd->qdisc->flags &= ~TCQ_F_THROTTLED; __netif_schedule(qdisc_root(wd->qdisc)); @@ -468,8 +468,8 @@ static enum hrtimer_restart qdisc_watchdog(struct hrtimer *timer) void qdisc_watchdog_init(struct qdisc_watchdog *wd, struct Qdisc *qdisc) { - tasklet_hrtimer_init(&wd->timer, qdisc_watchdog, - CLOCK_MONOTONIC, HRTIMER_MODE_ABS); + hrtimer_init(&wd->timer, CLOCK_MONOTONIC, HRTIMER_MODE_ABS); + wd->timer.function = qdisc_watchdog; wd->qdisc = qdisc; } EXPORT_SYMBOL(qdisc_watchdog_init); @@ -485,13 +485,13 @@ void qdisc_watchdog_schedule(struct qdisc_watchdog *wd, psched_time_t expires) wd->qdisc->flags |= TCQ_F_THROTTLED; time = ktime_set(0, 0); time = ktime_add_ns(time, PSCHED_TICKS2NS(expires)); - tasklet_hrtimer_start(&wd->timer, time, HRTIMER_MODE_ABS); + hrtimer_start(&wd->timer, time, HRTIMER_MODE_ABS); } EXPORT_SYMBOL(qdisc_watchdog_schedule); void qdisc_watchdog_cancel(struct qdisc_watchdog *wd) { - tasklet_hrtimer_cancel(&wd->timer); + hrtimer_cancel(&wd->timer); wd->qdisc->flags &= ~TCQ_F_THROTTLED; } EXPORT_SYMBOL(qdisc_watchdog_cancel); diff --git a/net/sched/sch_cbq.c b/net/sched/sch_cbq.c index 149b040..d5798e1 100644 --- a/net/sched/sch_cbq.c +++ b/net/sched/sch_cbq.c @@ -163,7 +163,7 @@ struct cbq_sched_data psched_time_t now_rt; /* Cached real time */ unsigned pmask; - struct tasklet_hrtimer delay_timer; + struct hrtimer delay_timer; struct qdisc_watchdog watchdog; /* Watchdog timer, started when CBQ has backlog, but cannot @@ -503,8 +503,6 @@ static void cbq_ovl_delay(struct cbq_class *cl) cl->undertime = q->now + delay; if (delay > 0) { - struct hrtimer *ht; - sched += delay + cl->penalty; cl->penalized = sched; cl->cpriority = TC_CBQ_MAXPRIO; @@ -512,12 +510,12 @@ static void cbq_ovl_delay(struct cbq_class *cl) expires = ktime_set(0, 0); expires = ktime_add_ns(expires, PSCHED_TICKS2NS(sched)); - ht = &q->delay_timer.timer; - if (hrtimer_try_to_cancel(ht) && - ktime_to_ns(ktime_sub(hrtimer_get_expires(ht), - expires)) > 0) - hrtimer_set_expires(ht, expires); - hrtimer_restart(ht); + if (hrtimer_try_to_cancel(&q->delay_timer) && + ktime_to_ns(ktime_sub( + hrtimer_get_expires(&q->delay_timer), + expires)) > 0) + hrtimer_set_expires(&q->delay_timer, expires); + hrtimer_restart(&q->delay_timer); cl->delayed = 1; cl->xstats.overactions++; return; @@ -593,7 +591,7 @@ static psched_tdiff_t cbq_undelay_prio(struct cbq_sched_data *q, int prio, static enum hrtimer_restart cbq_undelay(struct hrtimer *timer) { struct cbq_sched_data *q = container_of(timer, struct cbq_sched_data, - delay_timer.timer); + delay_timer); struct Qdisc *sch = q->watchdog.qdisc; psched_time_t now; psched_tdiff_t delay = 0; @@ -623,7 +621,7 @@ static enum hrtimer_restart cbq_undelay(struct hrtimer *timer) time = ktime_set(0, 0); time = ktime_add_ns(time, PSCHED_TICKS2NS(now + delay)); - tasklet_hrtimer_start(&q->delay_timer, time, HRTIMER_MODE_ABS); + hrtimer_start(&q->delay_timer, time, HRTIMER_MODE_ABS); } sch->flags &= ~TCQ_F_THROTTLED; @@ -1216,7 +1214,7 @@ cbq_reset(struct Qdisc* sch) q->tx_class = NULL; q->tx_borrowed = NULL; qdisc_watchdog_cancel(&q->watchdog); - tasklet_hrtimer_cancel(&q->delay_timer); + hrtimer_cancel(&q->delay_timer); q->toplevel = TC_CBQ_MAXLEVEL; q->now = psched_get_time(); q->now_rt = q->now; @@ -1399,8 +1397,7 @@ static int cbq_init(struct Qdisc *sch, struct nlattr *opt) q->link.minidle = -0x7FFFFFFF; qdisc_watchdog_init(&q->watchdog, sch); - tasklet_hrtimer_init(&q->delay_timer, cbq_undelay, - CLOCK_MONOTONIC, HRTIMER_MODE_ABS); + hrtimer_init(&q->delay_timer, CLOCK_MONOTONIC, HRTIMER_MODE_ABS); q->delay_timer.function = cbq_undelay; q->toplevel = TC_CBQ_MAXLEVEL; q->now = psched_get_time(); -- cgit v0.10.2 From f2486f26692433ba27cc10991a085b503b0422a3 Mon Sep 17 00:00:00 2001 From: "Luck, Tony" Date: Mon, 31 Aug 2009 16:54:03 -0700 Subject: [IA64] Fix warning in dma-mapping.c arch/ia64/kernel/dma-mapping.c:14: warning: control reaches end of non-void function arch/ia64/kernel/dma-mapping.c:14: warning: no return statement in function returning non-void This warning was introduced by commit: 390bd132b2831a2ad0268e84bffbfc0680debfe5 Add dma_debug_init() for ia64 Signed-off-by: Tony Luck diff --git a/arch/ia64/kernel/dma-mapping.c b/arch/ia64/kernel/dma-mapping.c index 39a3cd0..f2c1600 100644 --- a/arch/ia64/kernel/dma-mapping.c +++ b/arch/ia64/kernel/dma-mapping.c @@ -10,7 +10,9 @@ EXPORT_SYMBOL(dma_ops); static int __init dma_init(void) { - dma_debug_init(PREALLOC_DMA_DEBUG_ENTRIES); + dma_debug_init(PREALLOC_DMA_DEBUG_ENTRIES); + + return 0; } fs_initcall(dma_init); -- cgit v0.10.2 From 5afe18d2f58812f3924edbd215464e5e3e8545e7 Mon Sep 17 00:00:00 2001 From: Jiri Bohac Date: Wed, 2 Sep 2009 11:00:46 +0200 Subject: [IA64] fix csum_ipv6_magic() The 32-bit parameters (len and csum) of csum_ipv6_magic() are passed in 64-bit registers in2 and in4. The high order 32 bits of the registers were never cleared, and garbage was sometimes calculated into the checksum. Fix this by clearing the high order 32 bits of these registers. Signed-off-by: Jiri Bohac Signed-off-by: Tony Luck diff --git a/arch/ia64/lib/ip_fast_csum.S b/arch/ia64/lib/ip_fast_csum.S index 1f86aeb..620d9dc 100644 --- a/arch/ia64/lib/ip_fast_csum.S +++ b/arch/ia64/lib/ip_fast_csum.S @@ -96,20 +96,22 @@ END(ip_fast_csum) GLOBAL_ENTRY(csum_ipv6_magic) ld4 r20=[in0],4 ld4 r21=[in1],4 - dep r15=in3,in2,32,16 + zxt4 in2=in2 ;; ld4 r22=[in0],4 ld4 r23=[in1],4 - mux1 r15=r15,@rev + dep r15=in3,in2,32,16 ;; ld4 r24=[in0],4 ld4 r25=[in1],4 - shr.u r15=r15,16 + mux1 r15=r15,@rev add r16=r20,r21 add r17=r22,r23 + zxt4 in4=in4 ;; ld4 r26=[in0],4 ld4 r27=[in1],4 + shr.u r15=r15,16 add r18=r24,r25 add r8=r16,r17 ;; -- cgit v0.10.2 From 92653453c3015c083b9fe0ad48261c6b2267d482 Mon Sep 17 00:00:00 2001 From: Clemens Ladisch Date: Wed, 2 Sep 2009 18:25:39 +0200 Subject: sound: oxygen: handle cards with missing EEPROM MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The card model detection code introduced in 2.6.30 that tries to work around partially broken EEPROM contents by reading the EEPROM directly does not handle cards where the EEPROM has been omitted. In this case, we have to use the default ID to allow the driver to load. Signed-off-by: Clemens Ladisch Reported-and-tested-by: Ozan Çağlayan Cc: Signed-off-by: Takashi Iwai diff --git a/sound/pci/oxygen/oxygen_lib.c b/sound/pci/oxygen/oxygen_lib.c index 312251d..9a8936e 100644 --- a/sound/pci/oxygen/oxygen_lib.c +++ b/sound/pci/oxygen/oxygen_lib.c @@ -260,6 +260,9 @@ oxygen_search_pci_id(struct oxygen *chip, const struct pci_device_id ids[]) * chip didn't if the first EEPROM word was overwritten. */ subdevice = oxygen_read_eeprom(chip, 2); + /* use default ID if EEPROM is missing */ + if (subdevice == 0xffff) + subdevice = 0x8788; /* * We use only the subsystem device ID for searching because it is * unique even without the subsystem vendor ID, which may have been -- cgit v0.10.2 From 16ebb5e0b36ceadc8186f71d68b0c4fa4b6e781b Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Wed, 2 Sep 2009 02:40:09 +0000 Subject: tc: Fix unitialized kernel memory leak Three bytes of uninitialized kernel memory are currently leaked to user Signed-off-by: Eric Dumazet Reviewed-by: Jiri Pirko Signed-off-by: David S. Miller diff --git a/net/sched/sch_api.c b/net/sched/sch_api.c index 24d17ce..fdb694e 100644 --- a/net/sched/sch_api.c +++ b/net/sched/sch_api.c @@ -1456,6 +1456,8 @@ static int tc_fill_tclass(struct sk_buff *skb, struct Qdisc *q, nlh = NLMSG_NEW(skb, pid, seq, event, sizeof(*tcm), flags); tcm = NLMSG_DATA(nlh); tcm->tcm_family = AF_UNSPEC; + tcm->tcm__pad1 = 0; + tcm->tcm__pad2 = 0; tcm->tcm_ifindex = qdisc_dev(q)->ifindex; tcm->tcm_parent = q->handle; tcm->tcm_handle = q->handle; -- cgit v0.10.2 From a3df6f7d3090e611bcc774cd2cba45ae016d37e1 Mon Sep 17 00:00:00 2001 From: Paul Mackerras Date: Thu, 3 Sep 2009 11:52:02 +1000 Subject: perf_counter/powerpc: Fix cache event codes for POWER7 I had the codes for L1 D-cache load accesses and misses swapped around, and the wrong codes for LL-cache accesses and misses. This corrects them. Reported-by: Corey Ashford Signed-off-by: Paul Mackerras Cc: Peter Zijlstra Cc: LKML-Reference: <19103.8514.709300.585484@cargo.ozlabs.ibm.com> Signed-off-by: Ingo Molnar diff --git a/arch/powerpc/kernel/power7-pmu.c b/arch/powerpc/kernel/power7-pmu.c index 388cf57..018d094 100644 --- a/arch/powerpc/kernel/power7-pmu.c +++ b/arch/powerpc/kernel/power7-pmu.c @@ -317,7 +317,7 @@ static int power7_generic_events[] = { */ static int power7_cache_events[C(MAX)][C(OP_MAX)][C(RESULT_MAX)] = { [C(L1D)] = { /* RESULT_ACCESS RESULT_MISS */ - [C(OP_READ)] = { 0x400f0, 0xc880 }, + [C(OP_READ)] = { 0xc880, 0x400f0 }, [C(OP_WRITE)] = { 0, 0x300f0 }, [C(OP_PREFETCH)] = { 0xd8b8, 0 }, }, @@ -327,8 +327,8 @@ static int power7_cache_events[C(MAX)][C(OP_MAX)][C(RESULT_MAX)] = { [C(OP_PREFETCH)] = { 0x408a, 0 }, }, [C(LL)] = { /* RESULT_ACCESS RESULT_MISS */ - [C(OP_READ)] = { 0x6080, 0x6084 }, - [C(OP_WRITE)] = { 0x6082, 0x6086 }, + [C(OP_READ)] = { 0x16080, 0x26080 }, + [C(OP_WRITE)] = { 0x16082, 0x26082 }, [C(OP_PREFETCH)] = { 0, 0 }, }, [C(DTLB)] = { /* RESULT_ACCESS RESULT_MISS */ -- cgit v0.10.2 From e6617c6ec28a17cf2f90262b835ec05b9b861400 Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Thu, 3 Sep 2009 02:35:20 -0700 Subject: sparc64: Kill spurious NMI watchdog triggers by increasing limit to 30 seconds. This is a compromise and a temporary workaround for bootup NMI watchdog triggers some people see with qla2xxx devices present. This happens when, for example: CPU 0 is in the driver init and looping submitting mailbox commands to load the firmware, then waiting for completion. CPU 1 is receiving the device interrupts. CPU 1 is where the NMI watchdog triggers. CPU 0 is submitting mailbox commands fast enough that by the time CPU 1 returns from the device interrupt handler, a new one is pending. This sequence runs for more than 5 seconds. The problematic case is CPU 1's timer interrupt running when the barrage of device interrupts begin. Then we have: timer interrupt return for softirq checking pending, thus enable interrupts qla2xxx interrupt return qla2xxx interrupt return ... 5+ seconds pass final qla2xxx interrupt for fw load return run timer softirq return At some point in the multi-second qla2xxx interrupt storm we trigger the NMI watchdog on CPU 1 from the NMI interrupt handler. The timer softirq, once we get back to running it, is smart enough to run the timer work enough times to make up for the missed timer interrupts. However, the NMI watchdogs (both x86 and sparc) use the timer interrupt count to notice the cpu is wedged. But in the above scenerio we'll receive only one such timer interrupt even if we last all the way back to running the timer softirq. The default watchdog trigger point is only 5 seconds, which is pretty low (the softwatchdog triggers at 60 seconds). So increase it to 30 seconds for now. Signed-off-by: David S. Miller diff --git a/arch/sparc/kernel/nmi.c b/arch/sparc/kernel/nmi.c index 2c0cc72..b75bf50 100644 --- a/arch/sparc/kernel/nmi.c +++ b/arch/sparc/kernel/nmi.c @@ -103,7 +103,7 @@ notrace __kprobes void perfctr_irq(int irq, struct pt_regs *regs) } if (!touched && __get_cpu_var(last_irq_sum) == sum) { local_inc(&__get_cpu_var(alert_counter)); - if (local_read(&__get_cpu_var(alert_counter)) == 5 * nmi_hz) + if (local_read(&__get_cpu_var(alert_counter)) == 30 * nmi_hz) die_nmi("BUG: NMI Watchdog detected LOCKUP", regs, panic_on_timeout); } else { -- cgit v0.10.2 From edcb3b14863e1a6aa1923eeaa81125a00cf51a80 Mon Sep 17 00:00:00 2001 From: Anton Vorontsov Date: Thu, 6 Aug 2009 15:18:37 -0700 Subject: mtd: m25p80: fix null pointer dereference bug This patch fixes the following oops, observed with MTD_PARTITIONS=n: m25p80 spi32766.0: m25p80 (1024 Kbytes) Unable to handle kernel paging request for data at address 0x00000008 Faulting instruction address: 0xc03a54b0 Oops: Kernel access of bad area, sig: 11 [#1] Modules linked in: NIP: c03a54b0 LR: c03a5494 CTR: c01e98b8 REGS: ef82bb60 TRAP: 0300 Not tainted (2.6.31-rc4-00167-g4733fd3) MSR: 00029000 CR: 24022022 XER: 20000000 DEAR: 00000008, ESR: 00000000 TASK = ef82c000[1] 'swapper' THREAD: ef82a000 GPR00: 00000000 ef82bc10 ef82c000 0000002e 00001eb8 ffffffff c01e9824 00000036 GPR08: c054ed40 c0542a08 00001eb8 00004000 22022022 1001a1a0 3ff8fd00 00000000 GPR16: 00000000 00000001 00000000 00000000 ef82bddc c0530000 efbef500 ef8356d0 GPR24: 00000000 ef8356d0 00000000 efbf7a00 c0530ec4 ffffffed efbf5300 c0541f98 NIP [c03a54b0] m25p_probe+0x22c/0x354 LR [c03a5494] m25p_probe+0x210/0x354 Call Trace: [ef82bc10] [c03a5494] m25p_probe+0x210/0x354 (unreliable) [ef82bca0] [c024e37c] spi_drv_probe+0x2c/0x3c [ef82bcb0] [c01f1afc] driver_probe_device+0xa4/0x178 [ef82bcd0] [c01f06e8] bus_for_each_drv+0x6c/0xa8 [ef82bd00] [c01f1a34] device_attach+0x84/0xa8 ... Signed-off-by: Anton Vorontsov Cc: David Brownell Signed-off-by: Andrew Morton Signed-off-by: Artem Bityutskiy Signed-off-by: David Woodhouse diff --git a/drivers/mtd/devices/m25p80.c b/drivers/mtd/devices/m25p80.c index ae5fe91..10ed195 100644 --- a/drivers/mtd/devices/m25p80.c +++ b/drivers/mtd/devices/m25p80.c @@ -736,7 +736,7 @@ static int __devinit m25p_probe(struct spi_device *spi) flash->partitioned = 1; return add_mtd_partitions(&flash->mtd, parts, nr_parts); } - } else if (data->nr_parts) + } else if (data && data->nr_parts) dev_warn(&spi->dev, "ignoring %d default partitions on %s\n", data->nr_parts, data->name); -- cgit v0.10.2 From 4149ed1aa944ab864024982a2e568d17eccff504 Mon Sep 17 00:00:00 2001 From: Dimitri Gorokhovik Date: Thu, 3 Sep 2009 14:59:13 +0100 Subject: mtd: nftl: write support is broken Write support is broken in NFTL. Fix it. Signed-off-by: Cc: Tim Gardner Cc: Scott James Remnant Signed-off-by: Andrew Morton Signed-off-by: David Woodhouse diff --git a/drivers/mtd/nftlcore.c b/drivers/mtd/nftlcore.c index fb86cac..665d3eb 100644 --- a/drivers/mtd/nftlcore.c +++ b/drivers/mtd/nftlcore.c @@ -181,7 +181,7 @@ static int nftl_write(struct mtd_info *mtd, loff_t offs, size_t len, int res; ops.mode = MTD_OOB_PLACE; - ops.ooboffs = offs; + ops.ooboffs = offs & (mtd->writesize - 1); ops.ooblen = mtd->oobsize; ops.oobbuf = oob; ops.datbuf = buf; -- cgit v0.10.2 From 16f05c2b68520f94e365f9d347a7076f4ff00ad5 Mon Sep 17 00:00:00 2001 From: Dimitri Gorokhovik Date: Thu, 3 Sep 2009 14:04:22 +0100 Subject: mtd: nftl: fix offset alignments Arithmetic conversion in the mask computation makes the upper word of the second argument passed down to mtd->read_oob(), be always 0 (assuming 'offs' being a 64-bit signed long long type, and 'mtd->writesize' being a 32-bit unsigned int type). This patch applies over the other one adding masking in nftl_write, "nftl: write support is broken". Signed-off-by: Dimitri Gorokhovik Cc: Tim Gardner Cc: Scott James Remnant Signed-off-by: David Woodhouse diff --git a/drivers/mtd/nftlcore.c b/drivers/mtd/nftlcore.c index 665d3eb..1002e18 100644 --- a/drivers/mtd/nftlcore.c +++ b/drivers/mtd/nftlcore.c @@ -135,16 +135,17 @@ static void nftl_remove_dev(struct mtd_blktrans_dev *dev) int nftl_read_oob(struct mtd_info *mtd, loff_t offs, size_t len, size_t *retlen, uint8_t *buf) { + loff_t mask = mtd->writesize - 1; struct mtd_oob_ops ops; int res; ops.mode = MTD_OOB_PLACE; - ops.ooboffs = offs & (mtd->writesize - 1); + ops.ooboffs = offs & mask; ops.ooblen = len; ops.oobbuf = buf; ops.datbuf = NULL; - res = mtd->read_oob(mtd, offs & ~(mtd->writesize - 1), &ops); + res = mtd->read_oob(mtd, offs & ~mask, &ops); *retlen = ops.oobretlen; return res; } @@ -155,16 +156,17 @@ int nftl_read_oob(struct mtd_info *mtd, loff_t offs, size_t len, int nftl_write_oob(struct mtd_info *mtd, loff_t offs, size_t len, size_t *retlen, uint8_t *buf) { + loff_t mask = mtd->writesize - 1; struct mtd_oob_ops ops; int res; ops.mode = MTD_OOB_PLACE; - ops.ooboffs = offs & (mtd->writesize - 1); + ops.ooboffs = offs & mask; ops.ooblen = len; ops.oobbuf = buf; ops.datbuf = NULL; - res = mtd->write_oob(mtd, offs & ~(mtd->writesize - 1), &ops); + res = mtd->write_oob(mtd, offs & ~mask, &ops); *retlen = ops.oobretlen; return res; } @@ -177,17 +179,18 @@ int nftl_write_oob(struct mtd_info *mtd, loff_t offs, size_t len, static int nftl_write(struct mtd_info *mtd, loff_t offs, size_t len, size_t *retlen, uint8_t *buf, uint8_t *oob) { + loff_t mask = mtd->writesize - 1; struct mtd_oob_ops ops; int res; ops.mode = MTD_OOB_PLACE; - ops.ooboffs = offs & (mtd->writesize - 1); + ops.ooboffs = offs & mask; ops.ooblen = mtd->oobsize; ops.oobbuf = oob; ops.datbuf = buf; ops.len = len; - res = mtd->write_oob(mtd, offs & ~(mtd->writesize - 1), &ops); + res = mtd->write_oob(mtd, offs & ~mask, &ops); *retlen = ops.retlen; return res; } -- cgit v0.10.2 From bc8cec0dff072f1a45ce7f6b2c5234bb3411ac51 Mon Sep 17 00:00:00 2001 From: Massimo Cirillo Date: Thu, 27 Aug 2009 10:44:09 +0200 Subject: JFFS2: add missing verify buffer allocation/deallocation The function jffs2_nor_wbuf_flash_setup() doesn't allocate the verify buffer if CONFIG_JFFS2_FS_WBUF_VERIFY is defined, so causing a kernel panic when that macro is enabled and the verify function is called. Similarly the jffs2_nor_wbuf_flash_cleanup() must free the buffer if CONFIG_JFFS2_FS_WBUF_VERIFY is enabled. The following patch fixes the problem. The following patch applies to 2.6.30 kernel. Signed-off-by: Massimo Cirillo Signed-off-by: Artem Bityutskiy Signed-off-by: David Woodhouse Cc: stable@kernel.org diff --git a/fs/jffs2/wbuf.c b/fs/jffs2/wbuf.c index d9a721e..5ef7bac 100644 --- a/fs/jffs2/wbuf.c +++ b/fs/jffs2/wbuf.c @@ -1268,10 +1268,20 @@ int jffs2_nor_wbuf_flash_setup(struct jffs2_sb_info *c) { if (!c->wbuf) return -ENOMEM; +#ifdef CONFIG_JFFS2_FS_WBUF_VERIFY + c->wbuf_verify = kmalloc(c->wbuf_pagesize, GFP_KERNEL); + if (!c->wbuf_verify) { + kfree(c->wbuf); + return -ENOMEM; + } +#endif return 0; } void jffs2_nor_wbuf_flash_cleanup(struct jffs2_sb_info *c) { +#ifdef CONFIG_JFFS2_FS_WBUF_VERIFY + kfree(c->wbuf_verify); +#endif kfree(c->wbuf); } -- cgit v0.10.2 From d76b1590e06a63a3d8697168cd0aabf1c4b3cb3a Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Thu, 3 Sep 2009 22:38:59 +0300 Subject: slub: Fix kmem_cache_destroy() with SLAB_DESTROY_BY_RCU kmem_cache_destroy() should call rcu_barrier() *after* kmem_cache_close() and *before* sysfs_slab_remove() or risk rcu_free_slab() being called after kmem_cache is deleted (kfreed). rmmod nf_conntrack can crash the machine because it has to kmem_cache_destroy() a SLAB_DESTROY_BY_RCU enabled cache. Cc: Reported-by: Zdenek Kabelac Signed-off-by: Eric Dumazet Acked-by: Paul E. McKenney Signed-off-by: Pekka Enberg diff --git a/mm/slub.c b/mm/slub.c index b9f1491..b627675 100644 --- a/mm/slub.c +++ b/mm/slub.c @@ -2594,8 +2594,6 @@ static inline int kmem_cache_close(struct kmem_cache *s) */ void kmem_cache_destroy(struct kmem_cache *s) { - if (s->flags & SLAB_DESTROY_BY_RCU) - rcu_barrier(); down_write(&slub_lock); s->refcount--; if (!s->refcount) { @@ -2606,6 +2604,8 @@ void kmem_cache_destroy(struct kmem_cache *s) "still has objects.\n", s->name, __func__); dump_stack(); } + if (s->flags & SLAB_DESTROY_BY_RCU) + rcu_barrier(); sysfs_slab_remove(s); } else up_write(&slub_lock); -- cgit v0.10.2 From 2bcaa6a4238094c5695d5b1943078388d82d3004 Mon Sep 17 00:00:00 2001 From: Dave Andrews Date: Thu, 3 Sep 2009 17:21:27 -0700 Subject: Input: atkbd - add Compaq Presario R4000-series repeat quirk Compaq Presario R4000-series laptops are not sending a "volume up button release" and "volume down button release" signal in the PS/2 protocol for atkbd. The URL below has some of confirmed reports: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/385477 Signed-off-by: Dave Andrews Signed-off-by: Dmitry Torokhov diff --git a/drivers/input/keyboard/atkbd.c b/drivers/input/keyboard/atkbd.c index 95fe045..6c6a09b 100644 --- a/drivers/input/keyboard/atkbd.c +++ b/drivers/input/keyboard/atkbd.c @@ -880,6 +880,14 @@ static unsigned int atkbd_hp_zv6100_forced_release_keys[] = { }; /* + * Perform fixup for HP (Compaq) Presario R4000 R4100 R4200 that don't generate + * release for their volume buttons + */ +static unsigned int atkbd_hp_r4000_forced_release_keys[] = { + 0xae, 0xb0, -1U +}; + +/* * Samsung NC10,NC20 with Fn+F? key release not working */ static unsigned int atkbd_samsung_forced_release_keys[] = { @@ -1537,6 +1545,33 @@ static struct dmi_system_id atkbd_dmi_quirk_table[] __initdata = { .driver_data = atkbd_hp_zv6100_forced_release_keys, }, { + .ident = "HP Presario R4000", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"), + DMI_MATCH(DMI_PRODUCT_NAME, "Presario R4000"), + }, + .callback = atkbd_setup_forced_release, + .driver_data = atkbd_hp_r4000_forced_release_keys, + }, + { + .ident = "HP Presario R4100", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"), + DMI_MATCH(DMI_PRODUCT_NAME, "Presario R4100"), + }, + .callback = atkbd_setup_forced_release, + .driver_data = atkbd_hp_r4000_forced_release_keys, + }, + { + .ident = "HP Presario R4200", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"), + DMI_MATCH(DMI_PRODUCT_NAME, "Presario R4200"), + }, + .callback = atkbd_setup_forced_release, + .driver_data = atkbd_hp_r4000_forced_release_keys, + }, + { .ident = "Inventec Symphony", .matches = { DMI_MATCH(DMI_SYS_VENDOR, "INVENTEC"), -- cgit v0.10.2 From bd4352cadfacb9084c97c853b025fac010266c26 Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Fri, 4 Sep 2009 03:38:54 -0700 Subject: sparc64: Fix bootup with mcount in some configs. Functions invoked early when booting up a cpu can't use tracing because mcount requires a valid 'current_thread_info()' and TLB mappings to be setup. The code path of sun4v_register_mondo_queues --> register_one_mondo is one such case. sun4v_register_mondo_queues already has the necessary 'notrace' annotation, but register_one_mondo does not. Normally register_one_mondo is inlined so the bug doesn't trigger, but with some config/compiler combinations, it won't be so we must properly mark it notrace. While we're here, add 'notrace' annoations to prom_printf and prom_halt so that early error handling won't have the same problem. Reported-by: Alexander Beregalov Reported-by: Leif Sawyer Signed-off-by: David S. Miller diff --git a/arch/sparc/kernel/irq_64.c b/arch/sparc/kernel/irq_64.c index f0ee790..8daab33 100644 --- a/arch/sparc/kernel/irq_64.c +++ b/arch/sparc/kernel/irq_64.c @@ -886,7 +886,7 @@ void notrace init_irqwork_curcpu(void) * Therefore you cannot make any OBP calls, not even prom_printf, * from these two routines. */ -static void __cpuinit register_one_mondo(unsigned long paddr, unsigned long type, unsigned long qmask) +static void __cpuinit notrace register_one_mondo(unsigned long paddr, unsigned long type, unsigned long qmask) { unsigned long num_entries = (qmask + 1) / 64; unsigned long status; diff --git a/arch/sparc/prom/misc_64.c b/arch/sparc/prom/misc_64.c index eedffb4..39fc6af 100644 --- a/arch/sparc/prom/misc_64.c +++ b/arch/sparc/prom/misc_64.c @@ -88,7 +88,7 @@ void prom_cmdline(void) /* Drop into the prom, but completely terminate the program. * No chance of continuing. */ -void prom_halt(void) +void notrace prom_halt(void) { #ifdef CONFIG_SUN_LDOMS if (ldom_domaining_enabled) diff --git a/arch/sparc/prom/printf.c b/arch/sparc/prom/printf.c index 660943e..ca86926 100644 --- a/arch/sparc/prom/printf.c +++ b/arch/sparc/prom/printf.c @@ -14,14 +14,14 @@ */ #include +#include #include #include static char ppbuf[1024]; -void -prom_write(const char *buf, unsigned int n) +void notrace prom_write(const char *buf, unsigned int n) { char ch; @@ -33,8 +33,7 @@ prom_write(const char *buf, unsigned int n) } } -void -prom_printf(const char *fmt, ...) +void notrace prom_printf(const char *fmt, ...) { va_list args; int i; -- cgit v0.10.2 From 41b6a95d693319f804607b559893fbbd27498548 Mon Sep 17 00:00:00 2001 From: Steven Rostedt Date: Wed, 2 Sep 2009 09:59:48 -0400 Subject: ring-buffer: do not reset while in a commit The callers of reset must ensure that no commit can be taking place at the time of the reset. If it does then we may corrupt the ring buffer. Signed-off-by: Steven Rostedt diff --git a/kernel/trace/ring_buffer.c b/kernel/trace/ring_buffer.c index da2c59d..79d6012 100644 --- a/kernel/trace/ring_buffer.c +++ b/kernel/trace/ring_buffer.c @@ -3373,12 +3373,16 @@ void ring_buffer_reset_cpu(struct ring_buffer *buffer, int cpu) spin_lock_irqsave(&cpu_buffer->reader_lock, flags); + if (RB_WARN_ON(cpu_buffer, local_read(&cpu_buffer->committing))) + goto out; + __raw_spin_lock(&cpu_buffer->lock); rb_reset_cpu(cpu_buffer); __raw_spin_unlock(&cpu_buffer->lock); + out: spin_unlock_irqrestore(&cpu_buffer->reader_lock, flags); atomic_dec(&cpu_buffer->record_disabled); -- cgit v0.10.2 From 98277991a99734f3a31d638afb47d4484ac73e43 Mon Sep 17 00:00:00 2001 From: Steven Rostedt Date: Wed, 2 Sep 2009 10:56:15 -0400 Subject: ring-buffer: do not swap buffers during a commit If a commit is taking place on a CPU ring buffer, do not allow it to be swapped. Return -EBUSY when this is detected instead. Signed-off-by: Steven Rostedt diff --git a/kernel/trace/ring_buffer.c b/kernel/trace/ring_buffer.c index 79d6012..2878bd43 100644 --- a/kernel/trace/ring_buffer.c +++ b/kernel/trace/ring_buffer.c @@ -3519,16 +3519,23 @@ int ring_buffer_swap_cpu(struct ring_buffer *buffer_a, atomic_inc(&cpu_buffer_a->record_disabled); atomic_inc(&cpu_buffer_b->record_disabled); + ret = -EBUSY; + if (local_read(&cpu_buffer_a->committing)) + goto out_dec; + if (local_read(&cpu_buffer_b->committing)) + goto out_dec; + buffer_a->buffers[cpu] = cpu_buffer_b; buffer_b->buffers[cpu] = cpu_buffer_a; cpu_buffer_b->buffer = buffer_a; cpu_buffer_a->buffer = buffer_b; + ret = 0; + +out_dec: atomic_dec(&cpu_buffer_a->record_disabled); atomic_dec(&cpu_buffer_b->record_disabled); - - ret = 0; out: return ret; } -- cgit v0.10.2 From 1b959e18c4d6b4b981f887260b0f8e7939efa411 Mon Sep 17 00:00:00 2001 From: Steven Rostedt Date: Thu, 3 Sep 2009 10:12:13 -0400 Subject: ring-buffer: remove unnecessary cpu_relax The loops in the ring buffer that use cpu_relax are not dependent on other CPUs. They simply came across some padding in the ring buffer and are skipping over them. It is a normal loop and does not require a cpu_relax. Signed-off-by: Steven Rostedt diff --git a/kernel/trace/ring_buffer.c b/kernel/trace/ring_buffer.c index 2878bd43..a05541a 100644 --- a/kernel/trace/ring_buffer.c +++ b/kernel/trace/ring_buffer.c @@ -3132,10 +3132,8 @@ ring_buffer_peek(struct ring_buffer *buffer, int cpu, u64 *ts) spin_unlock(&cpu_buffer->reader_lock); local_irq_restore(flags); - if (event && event->type_len == RINGBUF_TYPE_PADDING) { - cpu_relax(); + if (event && event->type_len == RINGBUF_TYPE_PADDING) goto again; - } return event; } @@ -3160,10 +3158,8 @@ ring_buffer_iter_peek(struct ring_buffer_iter *iter, u64 *ts) event = rb_iter_peek(iter, ts); spin_unlock_irqrestore(&cpu_buffer->reader_lock, flags); - if (event && event->type_len == RINGBUF_TYPE_PADDING) { - cpu_relax(); + if (event && event->type_len == RINGBUF_TYPE_PADDING) goto again; - } return event; } @@ -3209,10 +3205,8 @@ ring_buffer_consume(struct ring_buffer *buffer, int cpu, u64 *ts) out: preempt_enable(); - if (event && event->type_len == RINGBUF_TYPE_PADDING) { - cpu_relax(); + if (event && event->type_len == RINGBUF_TYPE_PADDING) goto again; - } return event; } @@ -3302,10 +3296,8 @@ ring_buffer_read(struct ring_buffer_iter *iter, u64 *ts) out: spin_unlock_irqrestore(&cpu_buffer->reader_lock, flags); - if (event && event->type_len == RINGBUF_TYPE_PADDING) { - cpu_relax(); + if (event && event->type_len == RINGBUF_TYPE_PADDING) goto again; - } return event; } -- cgit v0.10.2 From 7e9391cfedce34eb9786bfa69d7d545dc93ef930 Mon Sep 17 00:00:00 2001 From: Steven Rostedt Date: Thu, 3 Sep 2009 10:02:09 -0400 Subject: ring-buffer: fix ring_buffer_read crossing pages When the ring buffer uses an iterator (static read mode, not on the fly reading), when it crosses a page boundery, it will skip the first entry on the next page. The reason is that the last entry of a page is usually padding if the page is not full. The padding will not be returned to the user. The problem arises on ring_buffer_read because it also increments the iterator. Because both the read and peek use the same rb_iter_peek, the rb_iter_peak will return the padding but also increment to the next item. This is because the ring_buffer_peek will not incerment it itself. The ring_buffer_read will increment it again and then call rb_iter_peek again to get the next item. But that will be the second item, not the first one on the page. The reason this never showed up before, is because the ftrace utility always calls ring_buffer_peek first and only uses ring_buffer_read to increment to the next item. The ring_buffer_peek will always keep the pointer to a valid item and not padding. This just hid the bug. Signed-off-by: Steven Rostedt diff --git a/kernel/trace/ring_buffer.c b/kernel/trace/ring_buffer.c index a05541a..9d939e7 100644 --- a/kernel/trace/ring_buffer.c +++ b/kernel/trace/ring_buffer.c @@ -3286,19 +3286,19 @@ ring_buffer_read(struct ring_buffer_iter *iter, u64 *ts) struct ring_buffer_per_cpu *cpu_buffer = iter->cpu_buffer; unsigned long flags; - again: spin_lock_irqsave(&cpu_buffer->reader_lock, flags); + again: event = rb_iter_peek(iter, ts); if (!event) goto out; + if (event->type_len == RINGBUF_TYPE_PADDING) + goto again; + rb_advance_iter(iter); out: spin_unlock_irqrestore(&cpu_buffer->reader_lock, flags); - if (event && event->type_len == RINGBUF_TYPE_PADDING) - goto again; - return event; } EXPORT_SYMBOL_GPL(ring_buffer_read); -- cgit v0.10.2 From dc892f7339af2d125478b800edb9081d6149665b Mon Sep 17 00:00:00 2001 From: Steven Rostedt Date: Thu, 3 Sep 2009 15:33:41 -0400 Subject: ring-buffer: remove ring_buffer_event_discard The function ring_buffer_event_discard can be used on any item in the ring buffer, even after the item was committed. This function provides no safety nets and is very race prone. An item may be safely removed from the ring buffer before it is committed with the ring_buffer_discard_commit. Since there are currently no users of this function, and because this function is racey and error prone, this patch removes it altogether. Note, removing this function also allows the counters to ignore all discarded events (patches will follow). Signed-off-by: Steven Rostedt diff --git a/include/linux/ring_buffer.h b/include/linux/ring_buffer.h index 7fca716..e061b4e 100644 --- a/include/linux/ring_buffer.h +++ b/include/linux/ring_buffer.h @@ -75,20 +75,6 @@ ring_buffer_event_time_delta(struct ring_buffer_event *event) } /* - * ring_buffer_event_discard can discard any event in the ring buffer. - * it is up to the caller to protect against a reader from - * consuming it or a writer from wrapping and replacing it. - * - * No external protection is needed if this is called before - * the event is commited. But in that case it would be better to - * use ring_buffer_discard_commit. - * - * Note, if an event that has not been committed is discarded - * with ring_buffer_event_discard, it must still be committed. - */ -void ring_buffer_event_discard(struct ring_buffer_event *event); - -/* * ring_buffer_discard_commit will remove an event that has not * ben committed yet. If this is used, then ring_buffer_unlock_commit * must not be called on the discarded event. This function diff --git a/kernel/trace/ring_buffer.c b/kernel/trace/ring_buffer.c index 9d939e7..092fe0c 100644 --- a/kernel/trace/ring_buffer.c +++ b/kernel/trace/ring_buffer.c @@ -2328,31 +2328,16 @@ static inline void rb_event_discard(struct ring_buffer_event *event) } /** - * ring_buffer_event_discard - discard any event in the ring buffer - * @event: the event to discard - * - * Sometimes a event that is in the ring buffer needs to be ignored. - * This function lets the user discard an event in the ring buffer - * and then that event will not be read later. - * - * Note, it is up to the user to be careful with this, and protect - * against races. If the user discards an event that has been consumed - * it is possible that it could corrupt the ring buffer. - */ -void ring_buffer_event_discard(struct ring_buffer_event *event) -{ - rb_event_discard(event); -} -EXPORT_SYMBOL_GPL(ring_buffer_event_discard); - -/** * ring_buffer_commit_discard - discard an event that has not been committed * @buffer: the ring buffer * @event: non committed event to discard * - * This is similar to ring_buffer_event_discard but must only be - * performed on an event that has not been committed yet. The difference - * is that this will also try to free the event from the ring buffer + * Sometimes an event that is in the ring buffer needs to be ignored. + * This function lets the user discard an event in the ring buffer + * and then that event will not be read later. + * + * This function only works if it is called before the the item has been + * committed. It will try to free the event from the ring buffer * if another event has not been added behind it. * * If another event has been added behind it, it will set the event -- cgit v0.10.2 From a1863c212b7517afc2b13e549552ac322fb44cab Mon Sep 17 00:00:00 2001 From: Steven Rostedt Date: Thu, 3 Sep 2009 10:23:58 -0400 Subject: ring-buffer: do not count discarded events The latency tracers report the number of items in the trace buffer. This uses the ring buffer data to calculate this. Because discarded events are also counted, the numbers do not match the number of items that are printed. The ring buffer also adds a "padding" item to the end of each buffer page which also gets counted as a discarded item. This patch decrements the counter to the page entries on a discard. This allows us to ignore discarded entries while reading the buffer. Decrementing the counter is still safe since it can only happen while the committing flag is still set. Signed-off-by: Steven Rostedt diff --git a/kernel/trace/ring_buffer.c b/kernel/trace/ring_buffer.c index 092fe0c..c8d2a66 100644 --- a/kernel/trace/ring_buffer.c +++ b/kernel/trace/ring_buffer.c @@ -218,17 +218,12 @@ enum { static inline int rb_null_event(struct ring_buffer_event *event) { - return event->type_len == RINGBUF_TYPE_PADDING - && event->time_delta == 0; -} - -static inline int rb_discarded_event(struct ring_buffer_event *event) -{ - return event->type_len == RINGBUF_TYPE_PADDING && event->time_delta; + return event->type_len == RINGBUF_TYPE_PADDING && !event->time_delta; } static void rb_event_set_padding(struct ring_buffer_event *event) { + /* padding has a NULL time_delta */ event->type_len = RINGBUF_TYPE_PADDING; event->time_delta = 0; } @@ -1778,9 +1773,6 @@ rb_reset_tail(struct ring_buffer_per_cpu *cpu_buffer, event->type_len = RINGBUF_TYPE_PADDING; /* time delta must be non zero */ event->time_delta = 1; - /* Account for this as an entry */ - local_inc(&tail_page->entries); - local_inc(&cpu_buffer->entries); /* Set write to end of buffer */ length = (tail + length) - BUF_PAGE_SIZE; @@ -2269,18 +2261,23 @@ ring_buffer_lock_reserve(struct ring_buffer *buffer, unsigned long length) } EXPORT_SYMBOL_GPL(ring_buffer_lock_reserve); -static void rb_commit(struct ring_buffer_per_cpu *cpu_buffer, +static void +rb_update_write_stamp(struct ring_buffer_per_cpu *cpu_buffer, struct ring_buffer_event *event) { - local_inc(&cpu_buffer->entries); - /* * The event first in the commit queue updates the * time stamp. */ if (rb_event_is_commit(cpu_buffer, event)) cpu_buffer->write_stamp += event->time_delta; +} +static void rb_commit(struct ring_buffer_per_cpu *cpu_buffer, + struct ring_buffer_event *event) +{ + local_inc(&cpu_buffer->entries); + rb_update_write_stamp(cpu_buffer, event); rb_end_commit(cpu_buffer); } @@ -2327,6 +2324,46 @@ static inline void rb_event_discard(struct ring_buffer_event *event) event->time_delta = 1; } +/* + * Decrement the entries to the page that an event is on. + * The event does not even need to exist, only the pointer + * to the page it is on. This may only be called before the commit + * takes place. + */ +static inline void +rb_decrement_entry(struct ring_buffer_per_cpu *cpu_buffer, + struct ring_buffer_event *event) +{ + unsigned long addr = (unsigned long)event; + struct buffer_page *bpage = cpu_buffer->commit_page; + struct buffer_page *start; + + addr &= PAGE_MASK; + + /* Do the likely case first */ + if (likely(bpage->page == (void *)addr)) { + local_dec(&bpage->entries); + return; + } + + /* + * Because the commit page may be on the reader page we + * start with the next page and check the end loop there. + */ + rb_inc_page(cpu_buffer, &bpage); + start = bpage; + do { + if (bpage->page == (void *)addr) { + local_dec(&bpage->entries); + return; + } + rb_inc_page(cpu_buffer, &bpage); + } while (bpage != start); + + /* commit not part of this buffer?? */ + RB_WARN_ON(cpu_buffer, 1); +} + /** * ring_buffer_commit_discard - discard an event that has not been committed * @buffer: the ring buffer @@ -2365,14 +2402,15 @@ void ring_buffer_discard_commit(struct ring_buffer *buffer, */ RB_WARN_ON(buffer, !local_read(&cpu_buffer->committing)); + rb_decrement_entry(cpu_buffer, event); if (rb_try_to_discard(cpu_buffer, event)) goto out; /* * The commit is still visible by the reader, so we - * must increment entries. + * must still update the timestamp. */ - local_inc(&cpu_buffer->entries); + rb_update_write_stamp(cpu_buffer, event); out: rb_end_commit(cpu_buffer); @@ -2884,8 +2922,7 @@ static void rb_advance_reader(struct ring_buffer_per_cpu *cpu_buffer) event = rb_reader_event(cpu_buffer); - if (event->type_len <= RINGBUF_TYPE_DATA_TYPE_LEN_MAX - || rb_discarded_event(event)) + if (event->type_len <= RINGBUF_TYPE_DATA_TYPE_LEN_MAX) cpu_buffer->read++; rb_update_read_stamp(cpu_buffer, event); -- cgit v0.10.2 From 077c5407cd3231cf13472623995f0dfdda510d62 Mon Sep 17 00:00:00 2001 From: Steven Rostedt Date: Thu, 3 Sep 2009 19:53:46 -0400 Subject: ring-buffer: disable all cpu buffers when one finds a problem Currently the way RB_WARN_ON works, is to disable either the current CPU buffer or all CPU buffers, depending on whether a ring_buffer or ring_buffer_per_cpu struct was passed into the macro. Most users of the RB_WARN_ON pass in the CPU buffer, so only the one CPU buffer gets disabled but the rest are still active. This may confuse users even though a warning is sent to the console. This patch changes the macro to disable the entire buffer even if the CPU buffer is passed in. Signed-off-by: Steven Rostedt diff --git a/kernel/trace/ring_buffer.c b/kernel/trace/ring_buffer.c index c8d2a66..f83a42a 100644 --- a/kernel/trace/ring_buffer.c +++ b/kernel/trace/ring_buffer.c @@ -467,14 +467,19 @@ struct ring_buffer_iter { }; /* buffer may be either ring_buffer or ring_buffer_per_cpu */ -#define RB_WARN_ON(buffer, cond) \ - ({ \ - int _____ret = unlikely(cond); \ - if (_____ret) { \ - atomic_inc(&buffer->record_disabled); \ - WARN_ON(1); \ - } \ - _____ret; \ +#define RB_WARN_ON(b, cond) \ + ({ \ + int _____ret = unlikely(cond); \ + if (_____ret) { \ + if (__same_type(*(b), struct ring_buffer_per_cpu)) { \ + struct ring_buffer_per_cpu *__b = \ + (void *)b; \ + atomic_inc(&__b->buffer->record_disabled); \ + } else \ + atomic_inc(&b->record_disabled); \ + WARN_ON(1); \ + } \ + _____ret; \ }) /* Up this if you want to test the TIME_EXTENTS and normalization */ -- cgit v0.10.2 From 8248ac052dfd1eb41819fbc0ca5c7a1667e7e70c Mon Sep 17 00:00:00 2001 From: Steven Rostedt Date: Wed, 2 Sep 2009 12:27:41 -0400 Subject: tracing: print out start and stop in latency traces During development of the tracer, we would copy information from the live tracer to the max tracer with one memcpy. Since then we added a generic ring buffer and we handle the copies differently now. Unfortunately, we never copied the critical section information, and we lost the output: # => started at: kmem_cache_alloc # => ended at: kmem_cache_alloc This patch adds back the critical start and end copying as well as removes the unused "trace_idx" and "overrun" fields of the trace_array_cpu structure. Signed-off-by: Steven Rostedt diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c index 0f08816..df2c9f7 100644 --- a/kernel/trace/trace.c +++ b/kernel/trace/trace.c @@ -407,19 +407,22 @@ static void __update_max_tr(struct trace_array *tr, struct task_struct *tsk, int cpu) { struct trace_array_cpu *data = tr->data[cpu]; + struct trace_array_cpu *max_data = tr->data[cpu]; max_tr.cpu = cpu; max_tr.time_start = data->preempt_timestamp; - data = max_tr.data[cpu]; - data->saved_latency = tracing_max_latency; + max_data = max_tr.data[cpu]; + max_data->saved_latency = tracing_max_latency; + max_data->critical_start = data->critical_start; + max_data->critical_end = data->critical_end; memcpy(data->comm, tsk->comm, TASK_COMM_LEN); - data->pid = tsk->pid; - data->uid = task_uid(tsk); - data->nice = tsk->static_prio - 20 - MAX_RT_PRIO; - data->policy = tsk->policy; - data->rt_priority = tsk->rt_priority; + max_data->pid = tsk->pid; + max_data->uid = task_uid(tsk); + max_data->nice = tsk->static_prio - 20 - MAX_RT_PRIO; + max_data->policy = tsk->policy; + max_data->rt_priority = tsk->rt_priority; /* record this tasks comm */ tracing_record_cmdline(tsk); @@ -1501,7 +1504,7 @@ print_trace_header(struct seq_file *m, struct trace_iterator *iter) seq_puts(m, "\n# => ended at: "); seq_print_ip_sym(&iter->seq, data->critical_end, sym_flags); trace_print_seq(m, &iter->seq); - seq_puts(m, "#\n"); + seq_puts(m, "\n#\n"); } seq_puts(m, "#\n"); diff --git a/kernel/trace/trace.h b/kernel/trace/trace.h index e2c06b2..f2af713 100644 --- a/kernel/trace/trace.h +++ b/kernel/trace/trace.h @@ -234,9 +234,6 @@ struct trace_array_cpu { atomic_t disabled; void *buffer_page; /* ring buffer spare */ - /* these fields get copied into max-trace: */ - unsigned long trace_idx; - unsigned long overrun; unsigned long saved_latency; unsigned long critical_start; unsigned long critical_end; -- cgit v0.10.2 From b8de7bd168fa54d059b16d3057b2f8a32cc5bdc3 Mon Sep 17 00:00:00 2001 From: Steven Rostedt Date: Mon, 31 Aug 2009 22:32:27 -0400 Subject: tracing: disable update max tracer while reading trace When reading the tracer from the trace file, updating the max latency may corrupt the output. This patch disables the tracing of the max latency while reading the trace file. Signed-off-by: Steven Rostedt diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c index df2c9f7..e521f1e 100644 --- a/kernel/trace/trace.c +++ b/kernel/trace/trace.c @@ -263,6 +263,9 @@ unsigned long trace_flags = TRACE_ITER_PRINT_PARENT | TRACE_ITER_PRINTK | TRACE_ITER_ANNOTATE | TRACE_ITER_CONTEXT_INFO | TRACE_ITER_SLEEP_TIME | TRACE_ITER_GRAPH_TIME; +static int trace_stop_count; +static DEFINE_SPINLOCK(tracing_start_lock); + /** * trace_wake_up - wake up tasks waiting for trace input * @@ -442,6 +445,9 @@ update_max_tr(struct trace_array *tr, struct task_struct *tsk, int cpu) { struct ring_buffer *buf = tr->buffer; + if (trace_stop_count) + return; + WARN_ON_ONCE(!irqs_disabled()); __raw_spin_lock(&ftrace_max_lock); @@ -469,6 +475,9 @@ update_max_tr_single(struct trace_array *tr, struct task_struct *tsk, int cpu) { int ret; + if (trace_stop_count) + return; + WARN_ON_ONCE(!irqs_disabled()); __raw_spin_lock(&ftrace_max_lock); @@ -685,9 +694,6 @@ static void trace_init_cmdlines(void) cmdline_idx = 0; } -static int trace_stop_count; -static DEFINE_SPINLOCK(tracing_start_lock); - /** * ftrace_off_permanent - disable all ftrace code permanently * -- cgit v0.10.2 From 621968cdb2563b667d6ecb484ba91ef4c3a797b3 Mon Sep 17 00:00:00 2001 From: Steven Rostedt Date: Fri, 4 Sep 2009 12:02:35 -0400 Subject: tracing: disable buffers and synchronize_sched before resetting Resetting the ring buffers while traces are happening can corrupt the ring buffer and disable it (no kernel crash to worry about). The safest thing to do is disable the ring buffers, call synchronize_sched() to wait for all current writers to finish and then reset the buffer. Signed-off-by: Steven Rostedt diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c index e521f1e..9110329 100644 --- a/kernel/trace/trace.c +++ b/kernel/trace/trace.c @@ -658,12 +658,20 @@ void tracing_reset(struct trace_array *tr, int cpu) void tracing_reset_online_cpus(struct trace_array *tr) { + struct ring_buffer *buffer = tr->buffer; int cpu; + ring_buffer_record_disable(buffer); + + /* Make sure all commits have finished */ + synchronize_sched(); + tr->time_start = ftrace_now(tr->cpu); for_each_online_cpu(cpu) tracing_reset(tr, cpu); + + ring_buffer_record_enable(buffer); } void tracing_reset_current(int cpu) -- cgit v0.10.2 From 76f0d07376388f32698ba51b6090a26b90c1342f Mon Sep 17 00:00:00 2001 From: Steven Rostedt Date: Fri, 4 Sep 2009 12:12:39 -0400 Subject: tracing: remove users of tracing_reset The function tracing_reset is deprecated for outside use of trace.c. The new function to reset the the buffers is tracing_reset_online_cpus. The reason for this is that resetting the buffers while the event trace points are active can corrupt the buffers, because they may be writing at the time of reset. The tracing_reset_online_cpus disables writes and waits for current writers to finish. This patch replaces all users of tracing_reset except for the latency tracers. Those changes require more work and will be removed in the following patches. Signed-off-by: Steven Rostedt diff --git a/kernel/trace/kmemtrace.c b/kernel/trace/kmemtrace.c index dda53cc..81b1645 100644 --- a/kernel/trace/kmemtrace.c +++ b/kernel/trace/kmemtrace.c @@ -183,11 +183,9 @@ static void kmemtrace_stop_probes(void) static int kmem_trace_init(struct trace_array *tr) { - int cpu; kmemtrace_array = tr; - for_each_cpu(cpu, cpu_possible_mask) - tracing_reset(tr, cpu); + tracing_reset_online_cpus(tr); kmemtrace_start_probes(); diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c index 9110329..54517a8 100644 --- a/kernel/trace/trace.c +++ b/kernel/trace/trace.c @@ -550,7 +550,6 @@ __acquires(kernel_lock) if (type->selftest && !tracing_selftest_disabled) { struct tracer *saved_tracer = current_trace; struct trace_array *tr = &global_trace; - int i; /* * Run a selftest on this tracer. @@ -559,8 +558,7 @@ __acquires(kernel_lock) * internal tracing to verify that everything is in order. * If we fail, we do not register this tracer. */ - for_each_tracing_cpu(i) - tracing_reset(tr, i); + tracing_reset_online_cpus(tr); current_trace = type; /* the test is responsible for initializing and enabling */ @@ -573,8 +571,7 @@ __acquires(kernel_lock) goto out; } /* Only reset on passing, to avoid touching corrupted buffers */ - for_each_tracing_cpu(i) - tracing_reset(tr, i); + tracing_reset_online_cpus(tr); printk(KERN_CONT "PASSED\n"); } diff --git a/kernel/trace/trace_boot.c b/kernel/trace/trace_boot.c index a29ef23..8631393 100644 --- a/kernel/trace/trace_boot.c +++ b/kernel/trace/trace_boot.c @@ -41,14 +41,12 @@ void disable_boot_trace(void) static int boot_trace_init(struct trace_array *tr) { - int cpu; boot_trace = tr; if (!tr) return 0; - for_each_cpu(cpu, cpu_possible_mask) - tracing_reset(tr, cpu); + tracing_reset_online_cpus(tr); tracing_sched_switch_assign_trace(tr); return 0; diff --git a/kernel/trace/trace_power.c b/kernel/trace/trace_power.c index 8a30d98..a5d5a4f 100644 --- a/kernel/trace/trace_power.c +++ b/kernel/trace/trace_power.c @@ -144,14 +144,12 @@ static void power_trace_reset(struct trace_array *tr) static int power_trace_init(struct trace_array *tr) { - int cpu; power_trace = tr; trace_power_enabled = 1; tracing_power_register(); - for_each_cpu(cpu, cpu_possible_mask) - tracing_reset(tr, cpu); + tracing_reset_online_cpus(tr); return 0; } -- cgit v0.10.2 From a77e28c7e1dc1a6a035c7627d4a88ecf3ea09aea Mon Sep 17 00:00:00 2001 From: Kiyoshi Ueda Date: Fri, 4 Sep 2009 20:40:16 +0100 Subject: dm multipath: fix oops when request based io fails when no paths The patch posted at http://marc.info/?l=dm-devel&m=124539787228784&w=2 which was merged into cec47e3d4a861e1d942b3a580d0bbef2700d2bb2 ("dm: prepare for request based option") introduced a regression in request-based dm. If map_request() calls dm_kill_unmapped_request() to complete a cloned bio without dispatching it, clone->bio is still set when dm_end_request() is called and the BUG_ON(clone->bio) is incorrect. The patch fixes this bug by freeing bio in dm_end_request() if the clone has bio. I've redone my tests to cover all I/O paths and confirmed there's no other regression. Here is the oops I hit in request-based dm when I do I/O to a multipath device which doesn't have any active path nor queue_if_no_path setting: ------------[ cut here ]------------ kernel BUG at /root/2.6.31-rc4.rqdm/drivers/md/dm.c:828! invalid opcode: 0000 [#1] SMP last sysfs file: /sys/devices/system/cpu/cpu3/cache/index2/shared_cpu_map CPU 1 Modules linked in: autofs4 sunrpc cpufreq_ondemand acpi_cpufreq dm_mirror dm_region_hash dm_log dm_service_time dm_multipath scsi_dh dm_mod video output sbs sbshc battery ac sg sr_mod e1000e button cdrom serio_raw rtc_cmos rtc_core rtc_lib piix lpfc scsi_transport_fc ata_piix libata megaraid_sas sd_mod scsi_mod crc_t10dif ext3 jbd uhci_hcd ohci_hcd ehci_hcd [last unloaded: microcode] Pid: 7, comm: ksoftirqd/1 Not tainted 2.6.31-rc4.rqdm #1 Express5800/120Lj [N8100-1417] RIP: 0010:[] [] dm_softirq_done+0xbd/0x100 [dm_mod] RSP: 0018:ffff8800280a1f08 EFLAGS: 00010282 RAX: ffffffffa02544e0 RBX: ffff8802aa1111d0 RCX: ffff8802aa1111e0 RDX: ffff8802ab913e70 RSI: 0000000000000000 RDI: ffff8802ab913e70 RBP: ffff8800280a1f28 R08: ffffc90005457040 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000000 R12: 00000000fffffffb R13: ffff8802ab913e88 R14: ffff8802ab9c1438 R15: 0000000000000100 FS: 0000000000000000(0000) GS:ffff88002809e000(0000) knlGS:0000000000000000 CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b CR2: 0000003d54a98640 CR3: 000000029f0a1000 CR4: 00000000000006e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Process ksoftirqd/1 (pid: 7, threadinfo ffff8802ae50e000, task ffff8802ae4f8040) Stack: ffff8800280a1f38 0000000000000020 ffffffff814f30a0 0000000000000004 <0> ffff8800280a1f58 ffffffff8116b245 ffff8800280a1f38 ffff8800280a1f38 <0> ffff8800280a1f58 0000000000000001 ffff8800280a1fa8 ffffffff810477bc Call Trace: [] blk_done_softirq+0x75/0x90 [] __do_softirq+0xcc/0x210 [] ? ksoftirqd+0x0/0x110 [] call_softirq+0x1c/0x50 [] do_softirq+0x65/0xa0 [] ? ksoftirqd+0x0/0x110 [] ksoftirqd+0x70/0x110 [] kthread+0x99/0xb0 [] child_rip+0xa/0x20 [] ? restore_args+0x0/0x30 [] ? kthread+0x0/0xb0 [] ? child_rip+0x0/0x20 Code: 44 89 e6 48 89 df e8 23 fb f2 e0 be 01 00 00 00 4c 89 f7 e8 f6 fd ff ff 5b 41 5c 41 5d 41 5e c9 c3 4c 89 ef e8 85 fe ff ff eb ed <0f> 0b eb fe 41 8b 85 dc 00 00 00 48 83 bb 10 01 00 00 00 89 83 RIP [] dm_softirq_done+0xbd/0x100 [dm_mod] RSP ---[ end trace 16af0a1d8542da55 ]--- Signed-off-by: Kiyoshi Ueda Signed-off-by: Jun'ichi Nomura Signed-off-by: Alasdair G Kergon diff --git a/drivers/md/dm.c b/drivers/md/dm.c index 8a311ea..b4845b1 100644 --- a/drivers/md/dm.c +++ b/drivers/md/dm.c @@ -738,16 +738,22 @@ static void rq_completed(struct mapped_device *md, int run_queue) dm_put(md); } +static void free_rq_clone(struct request *clone) +{ + struct dm_rq_target_io *tio = clone->end_io_data; + + blk_rq_unprep_clone(clone); + free_rq_tio(tio); +} + static void dm_unprep_request(struct request *rq) { struct request *clone = rq->special; - struct dm_rq_target_io *tio = clone->end_io_data; rq->special = NULL; rq->cmd_flags &= ~REQ_DONTPREP; - blk_rq_unprep_clone(clone); - free_rq_tio(tio); + free_rq_clone(clone); } /* @@ -825,8 +831,7 @@ static void dm_end_request(struct request *clone, int error) rq->sense_len = clone->sense_len; } - BUG_ON(clone->bio); - free_rq_tio(tio); + free_rq_clone(clone); blk_end_request_all(rq, error); -- cgit v0.10.2 From 8811f46c1f9386fc7017150de9d52359e5b1826e Mon Sep 17 00:00:00 2001 From: Mike Snitzer Date: Fri, 4 Sep 2009 20:40:19 +0100 Subject: dm snapshot: implement iterate devices Implement the .iterate_devices for the origin and snapshot targets. dm-snapshot's lack of .iterate_devices resulted in the inability to properly establish queue_limits for both targets. With 4K sector drives: an unfortunate side-effect of not establishing proper limits in either targets' DM device was that IO to the devices would fail even though both had been created without error. Commit af4874e03ed82f050d5872d8c39ce64bf16b5c38 ("dm target:s introduce iterate devices fn") in 2.6.31-rc1 should have implemented .iterate_devices for dm-snap.c's origin and snapshot targets. Signed-off-by: Mike Snitzer Signed-off-by: Andrew Morton Signed-off-by: Alasdair G Kergon diff --git a/drivers/md/dm-snap.c b/drivers/md/dm-snap.c index d573165..57f1bf7 100644 --- a/drivers/md/dm-snap.c +++ b/drivers/md/dm-snap.c @@ -1176,6 +1176,15 @@ static int snapshot_status(struct dm_target *ti, status_type_t type, return 0; } +static int snapshot_iterate_devices(struct dm_target *ti, + iterate_devices_callout_fn fn, void *data) +{ + struct dm_snapshot *snap = ti->private; + + return fn(ti, snap->origin, 0, ti->len, data); +} + + /*----------------------------------------------------------------- * Origin methods *---------------------------------------------------------------*/ @@ -1410,20 +1419,29 @@ static int origin_status(struct dm_target *ti, status_type_t type, char *result, return 0; } +static int origin_iterate_devices(struct dm_target *ti, + iterate_devices_callout_fn fn, void *data) +{ + struct dm_dev *dev = ti->private; + + return fn(ti, dev, 0, ti->len, data); +} + static struct target_type origin_target = { .name = "snapshot-origin", - .version = {1, 6, 0}, + .version = {1, 7, 0}, .module = THIS_MODULE, .ctr = origin_ctr, .dtr = origin_dtr, .map = origin_map, .resume = origin_resume, .status = origin_status, + .iterate_devices = origin_iterate_devices, }; static struct target_type snapshot_target = { .name = "snapshot", - .version = {1, 6, 0}, + .version = {1, 7, 0}, .module = THIS_MODULE, .ctr = snapshot_ctr, .dtr = snapshot_dtr, @@ -1431,6 +1449,7 @@ static struct target_type snapshot_target = { .end_io = snapshot_end_io, .resume = snapshot_resume, .status = snapshot_status, + .iterate_devices = snapshot_iterate_devices, }; static int __init dm_snapshot_init(void) -- cgit v0.10.2 From f6a1ed10864b7540fa758bbccf3433fe17070329 Mon Sep 17 00:00:00 2001 From: Mikulas Patocka Date: Fri, 4 Sep 2009 20:40:22 +0100 Subject: dm table: fix queue_limit checking device iterator The logic to check for valid device areas is inverted relative to proper use with iterate_devices. The iterate_devices method calls its callback for every underlying device in the target. If any callback returns non-zero, iterate_devices exits immediately. But the callback device_area_is_valid() returns 0 on error and 1 on success. The overall effect without is that an error is issued only if every device is invalid. This patch renames device_area_is_valid to device_area_is_invalid and inverts the logic so that one invalid device is sufficient to raise an error. Signed-off-by: Mikulas Patocka Signed-off-by: Mike Snitzer Signed-off-by: Alasdair G Kergon diff --git a/drivers/md/dm-table.c b/drivers/md/dm-table.c index d952b34..aa60526 100644 --- a/drivers/md/dm-table.c +++ b/drivers/md/dm-table.c @@ -343,10 +343,10 @@ static void close_dev(struct dm_dev_internal *d, struct mapped_device *md) } /* - * If possible, this checks an area of a destination device is valid. + * If possible, this checks an area of a destination device is invalid. */ -static int device_area_is_valid(struct dm_target *ti, struct dm_dev *dev, - sector_t start, sector_t len, void *data) +static int device_area_is_invalid(struct dm_target *ti, struct dm_dev *dev, + sector_t start, sector_t len, void *data) { struct queue_limits *limits = data; struct block_device *bdev = dev->bdev; @@ -357,16 +357,16 @@ static int device_area_is_valid(struct dm_target *ti, struct dm_dev *dev, char b[BDEVNAME_SIZE]; if (!dev_size) - return 1; + return 0; if ((start >= dev_size) || (start + len > dev_size)) { DMWARN("%s: %s too small for target", dm_device_name(ti->table->md), bdevname(bdev, b)); - return 0; + return 1; } if (logical_block_size_sectors <= 1) - return 1; + return 0; if (start & (logical_block_size_sectors - 1)) { DMWARN("%s: start=%llu not aligned to h/w " @@ -374,7 +374,7 @@ static int device_area_is_valid(struct dm_target *ti, struct dm_dev *dev, dm_device_name(ti->table->md), (unsigned long long)start, limits->logical_block_size, bdevname(bdev, b)); - return 0; + return 1; } if (len & (logical_block_size_sectors - 1)) { @@ -383,10 +383,10 @@ static int device_area_is_valid(struct dm_target *ti, struct dm_dev *dev, dm_device_name(ti->table->md), (unsigned long long)len, limits->logical_block_size, bdevname(bdev, b)); - return 0; + return 1; } - return 1; + return 0; } /* @@ -1000,8 +1000,8 @@ int dm_calculate_queue_limits(struct dm_table *table, * Check each device area is consistent with the target's * overall queue limits. */ - if (!ti->type->iterate_devices(ti, device_area_is_valid, - &ti_limits)) + if (ti->type->iterate_devices(ti, device_area_is_invalid, + &ti_limits)) return -EINVAL; combine_limits: -- cgit v0.10.2 From a963a956225eb0f8c4d3537f428153c30adf54b8 Mon Sep 17 00:00:00 2001 From: Mike Snitzer Date: Fri, 4 Sep 2009 20:40:24 +0100 Subject: dm table: add more context to terse warning messages A couple of recent warning messages make it difficult for the reader to determine exactly what is wrong. This patch adds more information to those messages. The messages were added by these commits: 5dea271b6d87bd1d79a59c1d5baac2596a841c37 ("dm table: pass correct dev area size to device_area_is_valid") ea9df47cc92573b159ef3b4fda516c32cba9c4fd ("dm table: fix blk_stack_limits arg to use bytes not sectors") The patch also corrects references to logical_block_size in printk format strings from %hu to %u. Signed-off-by: Mike Snitzer Signed-off-by: Alasdair G Kergon diff --git a/drivers/md/dm-table.c b/drivers/md/dm-table.c index aa60526..c90e662 100644 --- a/drivers/md/dm-table.c +++ b/drivers/md/dm-table.c @@ -360,8 +360,12 @@ static int device_area_is_invalid(struct dm_target *ti, struct dm_dev *dev, return 0; if ((start >= dev_size) || (start + len > dev_size)) { - DMWARN("%s: %s too small for target", - dm_device_name(ti->table->md), bdevname(bdev, b)); + DMWARN("%s: %s too small for target: " + "start=%llu, len=%llu, dev_size=%llu", + dm_device_name(ti->table->md), bdevname(bdev, b), + (unsigned long long)start, + (unsigned long long)len, + (unsigned long long)dev_size); return 1; } @@ -370,7 +374,7 @@ static int device_area_is_invalid(struct dm_target *ti, struct dm_dev *dev, if (start & (logical_block_size_sectors - 1)) { DMWARN("%s: start=%llu not aligned to h/w " - "logical block size %hu of %s", + "logical block size %u of %s", dm_device_name(ti->table->md), (unsigned long long)start, limits->logical_block_size, bdevname(bdev, b)); @@ -379,7 +383,7 @@ static int device_area_is_invalid(struct dm_target *ti, struct dm_dev *dev, if (len & (logical_block_size_sectors - 1)) { DMWARN("%s: len=%llu not aligned to h/w " - "logical block size %hu of %s", + "logical block size %u of %s", dm_device_name(ti->table->md), (unsigned long long)len, limits->logical_block_size, bdevname(bdev, b)); @@ -496,8 +500,15 @@ int dm_set_device_limits(struct dm_target *ti, struct dm_dev *dev, } if (blk_stack_limits(limits, &q->limits, start << 9) < 0) - DMWARN("%s: target device %s is misaligned", - dm_device_name(ti->table->md), bdevname(bdev, b)); + DMWARN("%s: target device %s is misaligned: " + "physical_block_size=%u, logical_block_size=%u, " + "alignment_offset=%u, start=%llu", + dm_device_name(ti->table->md), bdevname(bdev, b), + q->limits.physical_block_size, + q->limits.logical_block_size, + q->limits.alignment_offset, + (unsigned long long) start << 9); + /* * Check if merge fn is supported. @@ -698,7 +709,7 @@ static int validate_hardware_logical_block_alignment(struct dm_table *table, if (remaining) { DMWARN("%s: table line %u (start sect %llu len %llu) " - "not aligned to h/w logical block size %hu", + "not aligned to h/w logical block size %u", dm_device_name(table->md), i, (unsigned long long) ti->begin, (unsigned long long) ti->len, -- cgit v0.10.2 From 40bea431274c247425e7f5970d796ff7b37a2b22 Mon Sep 17 00:00:00 2001 From: Mike Snitzer Date: Fri, 4 Sep 2009 20:40:25 +0100 Subject: dm stripe: expose correct io hints Set sensible I/O hints for striped DM devices in the topology infrastructure added for 2.6.31 for userspace tools to obtain via sysfs. Add .io_hints to 'struct target_type' to allow the I/O hints portion (io_min and io_opt) of the 'struct queue_limits' to be set by each target and implement this for dm-stripe. Signed-off-by: Mike Snitzer Signed-off-by: Alasdair G Kergon diff --git a/drivers/md/dm-stripe.c b/drivers/md/dm-stripe.c index 4e0e593..3e563d2 100644 --- a/drivers/md/dm-stripe.c +++ b/drivers/md/dm-stripe.c @@ -329,9 +329,19 @@ static int stripe_iterate_devices(struct dm_target *ti, return ret; } +static void stripe_io_hints(struct dm_target *ti, + struct queue_limits *limits) +{ + struct stripe_c *sc = ti->private; + unsigned chunk_size = (sc->chunk_mask + 1) << 9; + + blk_limits_io_min(limits, chunk_size); + limits->io_opt = chunk_size * sc->stripes; +} + static struct target_type stripe_target = { .name = "striped", - .version = {1, 2, 0}, + .version = {1, 3, 0}, .module = THIS_MODULE, .ctr = stripe_ctr, .dtr = stripe_dtr, @@ -339,6 +349,7 @@ static struct target_type stripe_target = { .end_io = stripe_end_io, .status = stripe_status, .iterate_devices = stripe_iterate_devices, + .io_hints = stripe_io_hints, }; int __init dm_stripe_init(void) diff --git a/drivers/md/dm-table.c b/drivers/md/dm-table.c index c90e662..1a6cb3c 100644 --- a/drivers/md/dm-table.c +++ b/drivers/md/dm-table.c @@ -1007,6 +1007,10 @@ int dm_calculate_queue_limits(struct dm_table *table, ti->type->iterate_devices(ti, dm_set_device_limits, &ti_limits); + /* Set I/O hints portion of queue limits */ + if (ti->type->io_hints) + ti->type->io_hints(ti, &ti_limits); + /* * Check each device area is consistent with the target's * overall queue limits. diff --git a/include/linux/device-mapper.h b/include/linux/device-mapper.h index 655e772..df7607e 100644 --- a/include/linux/device-mapper.h +++ b/include/linux/device-mapper.h @@ -91,6 +91,9 @@ typedef int (*dm_iterate_devices_fn) (struct dm_target *ti, iterate_devices_callout_fn fn, void *data); +typedef void (*dm_io_hints_fn) (struct dm_target *ti, + struct queue_limits *limits); + /* * Returns: * 0: The target can handle the next I/O immediately. @@ -151,6 +154,7 @@ struct target_type { dm_merge_fn merge; dm_busy_fn busy; dm_iterate_devices_fn iterate_devices; + dm_io_hints_fn io_hints; /* For internal device-mapper use. */ struct list_head list; -- cgit v0.10.2 From 4142a969175302bc843d1505133488bfdbfa4732 Mon Sep 17 00:00:00 2001 From: Jonathan Brassow Date: Fri, 4 Sep 2009 20:40:28 +0100 Subject: dm log: fix userspace status output Fix 'dmsetup table' output. There is a missing ' ' at the end of the string causing two words to run together. Signed-off-by: Jonathan Brassow Signed-off-by: Alasdair G Kergon diff --git a/drivers/md/dm-log-userspace-base.c b/drivers/md/dm-log-userspace-base.c index e69b965..2f2a244 100644 --- a/drivers/md/dm-log-userspace-base.c +++ b/drivers/md/dm-log-userspace-base.c @@ -577,7 +577,7 @@ static int userspace_status(struct dm_dirty_log *log, status_type_t status_type, break; case STATUSTYPE_TABLE: sz = 0; - DMEMIT("%s %u %s %s", log->type->name, lc->usr_argc + 1, + DMEMIT("%s %u %s %s ", log->type->name, lc->usr_argc + 1, lc->uuid, lc->usr_argv_str); break; } -- cgit v0.10.2 From b8313b6da7e2e7c7f47d93d8561969a3ff9ba0ea Mon Sep 17 00:00:00 2001 From: Jonathan Brassow Date: Fri, 4 Sep 2009 20:40:30 +0100 Subject: dm log: remove incorrect field from userspace table output The output of 'dmsetup table' includes an internal field that should not be there. This patch removes it. To make the fix simpler, we first reorder a constructor argument The 'device size' argument is generated internally. Currently it is placed as the last space-separated word of the constructor string. However, we need to use a version of the string without this word, so we move it to the beginning instead so it is trivial to skip past it. We keep a copy of the arguments passed to userspace for creating a log, just in case we need to resend them. These are the same arguments that are desired in the STATUSTYPE_TABLE request, except for one. When creating the userspace log, the userspace daemon must know the size of the mirror, so that is added to the arguments given in the constructor table. We were printing this extra argument out as well, which is a mistake. Signed-off-by: Jonathan Brassow Signed-off-by: Alasdair G Kergon diff --git a/drivers/md/dm-log-userspace-base.c b/drivers/md/dm-log-userspace-base.c index 2f2a244..c49da0a 100644 --- a/drivers/md/dm-log-userspace-base.c +++ b/drivers/md/dm-log-userspace-base.c @@ -111,10 +111,9 @@ static int build_constructor_string(struct dm_target *ti, return -ENOMEM; } - for (i = 0, str_size = 0; i < argc; i++) - str_size += sprintf(str + str_size, "%s ", argv[i]); - str_size += sprintf(str + str_size, "%llu", - (unsigned long long)ti->len); + str_size = sprintf(str, "%llu", (unsigned long long)ti->len); + for (i = 0; i < argc; i++) + str_size += sprintf(str + str_size, " %s", argv[i]); *ctr_str = str; return str_size; @@ -561,6 +560,7 @@ static int userspace_status(struct dm_dirty_log *log, status_type_t status_type, char *result, unsigned maxlen) { int r = 0; + char *table_args; size_t sz = (size_t)maxlen; struct log_c *lc = log->context; @@ -577,8 +577,12 @@ static int userspace_status(struct dm_dirty_log *log, status_type_t status_type, break; case STATUSTYPE_TABLE: sz = 0; - DMEMIT("%s %u %s %s ", log->type->name, lc->usr_argc + 1, - lc->uuid, lc->usr_argv_str); + table_args = strstr(lc->usr_argv_str, " "); + BUG_ON(!table_args); /* There will always be a ' ' */ + table_args++; + + DMEMIT("%s %u %s %s ", log->type->name, lc->usr_argc, + lc->uuid, table_args); break; } return (r) ? 0 : (int)sz; -- cgit v0.10.2 From d2b698644c97cb033261536a4f2010924a00eac9 Mon Sep 17 00:00:00 2001 From: Jonathan Brassow Date: Fri, 4 Sep 2009 20:40:32 +0100 Subject: dm raid1: do not allow log_failure variable to unset after being set This patch fixes a bug which was triggering a case where the primary leg could not be changed on failure even when the mirror was in-sync. The case involves the failure of the primary device along with the transient failure of the log device. The problem is that bios can be put on the 'failures' list (due to log failure) before 'fail_mirror' is called due to the primary device failure. Normally, this is fine, but if the log device failure is transient, a subsequent iteration of the work thread, 'do_mirror', will reset 'log_failure'. The 'do_failures' function then resets the 'in_sync' variable when processing bios on the failures list. The 'in_sync' variable is what is used to determine if the primary device can be switched in the event of a failure. Since this has been reset, the primary device is incorrectly assumed to be not switchable. The case has been seen in the cluster mirror context, where one machine realizes the log device is dead before the other machines. As the responsibilities of the server migrate from one node to another (because the mirror is being reconfigured due to the failure), the new server may think for a moment that the log device is fine - thus resetting the 'log_failure' variable. In any case, it is inappropiate for us to reset the 'log_failure' variable. The above bug simply illustrates that it can actually hurt us. Cc: stable@kernel.org Signed-off-by: Jonathan Brassow Signed-off-by: Alasdair G Kergon diff --git a/drivers/md/dm-raid1.c b/drivers/md/dm-raid1.c index 9726577..33f179e 100644 --- a/drivers/md/dm-raid1.c +++ b/drivers/md/dm-raid1.c @@ -648,7 +648,13 @@ static void do_writes(struct mirror_set *ms, struct bio_list *writes) */ dm_rh_inc_pending(ms->rh, &sync); dm_rh_inc_pending(ms->rh, &nosync); - ms->log_failure = dm_rh_flush(ms->rh) ? 1 : 0; + + /* + * If the flush fails on a previous call and succeeds here, + * we must not reset the log_failure variable. We need + * userspace interaction to do that. + */ + ms->log_failure = dm_rh_flush(ms->rh) ? 1 : ms->log_failure; /* * Dispatch io. -- cgit v0.10.2 From 7ec23d50949d5062b5b749638dd9380ed75e58e5 Mon Sep 17 00:00:00 2001 From: Jonathan Brassow Date: Fri, 4 Sep 2009 20:40:34 +0100 Subject: dm log: userspace add luid to distinguish between concurrent log instances Device-mapper userspace logs (like the clustered log) are identified by a universally unique identifier (UUID). This identifier is used to associate requests from the kernel to a specific log in userspace. The UUID must be unique everywhere, since multiple machines may use this identifier when communicating about a particular log, as is the case for cluster logs. Sometimes, device-mapper/LVM may re-use a UUID. This is the case during pvmoves, when moving from one segment of an LV to another, or when resizing a mirror, etc. In these cases, a new log is created with the same UUID and loaded in the "inactive" slot. When a device-mapper "resume" is issued, the "live" table is deactivated and the new "inactive" table becomes "live". (The "inactive" table can also be removed via a device-mapper 'clear' command.) The above two issues were colliding. More than one log was being created with the same UUID, and there was no way to distinguish between them. So, sometimes the wrong log would be swapped out during the exchange. The solution is to create a locally unique identifier, 'luid', to go along with the UUID. This new identifier is used to determine exactly which log is being referenced by the kernel when the log exchange is made. The identifier is not universally safe, but it does not need to be, since create/destroy/suspend/resume operations are bound to a specific machine; and these are the operations that make up the exchange. Signed-off-by: Jonathan Brassow Signed-off-by: Alasdair G Kergon diff --git a/drivers/md/dm-log-userspace-base.c b/drivers/md/dm-log-userspace-base.c index c49da0a..6e186b1 100644 --- a/drivers/md/dm-log-userspace-base.c +++ b/drivers/md/dm-log-userspace-base.c @@ -21,6 +21,7 @@ struct log_c { struct dm_target *ti; uint32_t region_size; region_t region_count; + uint64_t luid; char uuid[DM_UUID_LEN]; char *usr_argv_str; @@ -63,7 +64,7 @@ static int userspace_do_request(struct log_c *lc, const char *uuid, * restored. */ retry: - r = dm_consult_userspace(uuid, request_type, data, + r = dm_consult_userspace(uuid, lc->luid, request_type, data, data_size, rdata, rdata_size); if (r != -ESRCH) @@ -74,14 +75,15 @@ retry: set_current_state(TASK_INTERRUPTIBLE); schedule_timeout(2*HZ); DMWARN("Attempting to contact userspace log server..."); - r = dm_consult_userspace(uuid, DM_ULOG_CTR, lc->usr_argv_str, + r = dm_consult_userspace(uuid, lc->luid, DM_ULOG_CTR, + lc->usr_argv_str, strlen(lc->usr_argv_str) + 1, NULL, NULL); if (!r) break; } DMINFO("Reconnected to userspace log server... DM_ULOG_CTR complete"); - r = dm_consult_userspace(uuid, DM_ULOG_RESUME, NULL, + r = dm_consult_userspace(uuid, lc->luid, DM_ULOG_RESUME, NULL, 0, NULL, NULL); if (!r) goto retry; @@ -153,6 +155,9 @@ static int userspace_ctr(struct dm_dirty_log *log, struct dm_target *ti, return -ENOMEM; } + /* The ptr value is sufficient for local unique id */ + lc->luid = (uint64_t)lc; + lc->ti = ti; if (strlen(argv[0]) > (DM_UUID_LEN - 1)) { @@ -172,7 +177,7 @@ static int userspace_ctr(struct dm_dirty_log *log, struct dm_target *ti, } /* Send table string */ - r = dm_consult_userspace(lc->uuid, DM_ULOG_CTR, + r = dm_consult_userspace(lc->uuid, lc->luid, DM_ULOG_CTR, ctr_str, str_size, NULL, NULL); if (r == -ESRCH) { @@ -182,7 +187,7 @@ static int userspace_ctr(struct dm_dirty_log *log, struct dm_target *ti, /* Since the region size does not change, get it now */ rdata_size = sizeof(rdata); - r = dm_consult_userspace(lc->uuid, DM_ULOG_GET_REGION_SIZE, + r = dm_consult_userspace(lc->uuid, lc->luid, DM_ULOG_GET_REGION_SIZE, NULL, 0, (char *)&rdata, &rdata_size); if (r) { @@ -211,7 +216,7 @@ static void userspace_dtr(struct dm_dirty_log *log) int r; struct log_c *lc = log->context; - r = dm_consult_userspace(lc->uuid, DM_ULOG_DTR, + r = dm_consult_userspace(lc->uuid, lc->luid, DM_ULOG_DTR, NULL, 0, NULL, NULL); @@ -226,7 +231,7 @@ static int userspace_presuspend(struct dm_dirty_log *log) int r; struct log_c *lc = log->context; - r = dm_consult_userspace(lc->uuid, DM_ULOG_PRESUSPEND, + r = dm_consult_userspace(lc->uuid, lc->luid, DM_ULOG_PRESUSPEND, NULL, 0, NULL, NULL); @@ -238,7 +243,7 @@ static int userspace_postsuspend(struct dm_dirty_log *log) int r; struct log_c *lc = log->context; - r = dm_consult_userspace(lc->uuid, DM_ULOG_POSTSUSPEND, + r = dm_consult_userspace(lc->uuid, lc->luid, DM_ULOG_POSTSUSPEND, NULL, 0, NULL, NULL); @@ -251,7 +256,7 @@ static int userspace_resume(struct dm_dirty_log *log) struct log_c *lc = log->context; lc->in_sync_hint = 0; - r = dm_consult_userspace(lc->uuid, DM_ULOG_RESUME, + r = dm_consult_userspace(lc->uuid, lc->luid, DM_ULOG_RESUME, NULL, 0, NULL, NULL); diff --git a/drivers/md/dm-log-userspace-transfer.c b/drivers/md/dm-log-userspace-transfer.c index 8ce74d9..ba0edad 100644 --- a/drivers/md/dm-log-userspace-transfer.c +++ b/drivers/md/dm-log-userspace-transfer.c @@ -147,7 +147,8 @@ static void cn_ulog_callback(void *data) /** * dm_consult_userspace - * @uuid: log's uuid (must be DM_UUID_LEN in size) + * @uuid: log's universal unique identifier (must be DM_UUID_LEN in size) + * @luid: log's local unique identifier * @request_type: found in include/linux/dm-log-userspace.h * @data: data to tx to the server * @data_size: size of data in bytes @@ -163,7 +164,7 @@ static void cn_ulog_callback(void *data) * * Returns: 0 on success, -EXXX on failure **/ -int dm_consult_userspace(const char *uuid, int request_type, +int dm_consult_userspace(const char *uuid, uint64_t luid, int request_type, char *data, size_t data_size, char *rdata, size_t *rdata_size) { @@ -190,6 +191,7 @@ resend: memset(tfr, 0, DM_ULOG_PREALLOCED_SIZE - overhead_size); memcpy(tfr->uuid, uuid, DM_UUID_LEN); + tfr->luid = luid; tfr->seq = dm_ulog_seq++; /* diff --git a/drivers/md/dm-log-userspace-transfer.h b/drivers/md/dm-log-userspace-transfer.h index c26d8e4..04ee874 100644 --- a/drivers/md/dm-log-userspace-transfer.h +++ b/drivers/md/dm-log-userspace-transfer.h @@ -11,7 +11,7 @@ int dm_ulog_tfr_init(void); void dm_ulog_tfr_exit(void); -int dm_consult_userspace(const char *uuid, int request_type, +int dm_consult_userspace(const char *uuid, uint64_t luid, int request_type, char *data, size_t data_size, char *rdata, size_t *rdata_size); diff --git a/include/linux/dm-log-userspace.h b/include/linux/dm-log-userspace.h index 642e301..8a1f972 100644 --- a/include/linux/dm-log-userspace.h +++ b/include/linux/dm-log-userspace.h @@ -371,7 +371,18 @@ (DM_ULOG_REQUEST_MASK & (request_type)) struct dm_ulog_request { - char uuid[DM_UUID_LEN]; /* Ties a request to a specific mirror log */ + /* + * The local unique identifier (luid) and the universally unique + * identifier (uuid) are used to tie a request to a specific + * mirror log. A single machine log could probably make due with + * just the 'luid', but a cluster-aware log must use the 'uuid' and + * the 'luid'. The uuid is what is required for node to node + * communication concerning a particular log, but the 'luid' helps + * differentiate between logs that are being swapped and have the + * same 'uuid'. (Think "live" and "inactive" device-mapper tables.) + */ + uint64_t luid; + char uuid[DM_UUID_LEN]; char padding[7]; /* Padding because DM_UUID_LEN = 129 */ int32_t error; /* Used to report back processing errors */ -- cgit v0.10.2 From 02d2fd31defce6ff77146ad0fef4f19006055d86 Mon Sep 17 00:00:00 2001 From: Mikulas Patocka Date: Fri, 4 Sep 2009 20:40:37 +0100 Subject: dm snapshot: refactor zero_disk_area to use chunk_io Refactor chunk_io to prepare for the fix in the following patch. Pass an area pointer to chunk_io and simplify zero_disk_area to use chunk_io. No functional change. Cc: stable@kernel.org Signed-off-by: Mikulas Patocka Signed-off-by: Alasdair G Kergon diff --git a/drivers/md/dm-snap-persistent.c b/drivers/md/dm-snap-persistent.c index 6e3fe4f..2a3d626 100644 --- a/drivers/md/dm-snap-persistent.c +++ b/drivers/md/dm-snap-persistent.c @@ -188,7 +188,8 @@ static void do_metadata(struct work_struct *work) /* * Read or write a chunk aligned and sized block of data from a device. */ -static int chunk_io(struct pstore *ps, chunk_t chunk, int rw, int metadata) +static int chunk_io(struct pstore *ps, void *area, chunk_t chunk, int rw, + int metadata) { struct dm_io_region where = { .bdev = ps->store->cow->bdev, @@ -198,7 +199,7 @@ static int chunk_io(struct pstore *ps, chunk_t chunk, int rw, int metadata) struct dm_io_request io_req = { .bi_rw = rw, .mem.type = DM_IO_VMA, - .mem.ptr.vma = ps->area, + .mem.ptr.vma = area, .client = ps->io_client, .notify.fn = NULL, }; @@ -240,7 +241,7 @@ static int area_io(struct pstore *ps, int rw) chunk = area_location(ps, ps->current_area); - r = chunk_io(ps, chunk, rw, 0); + r = chunk_io(ps, ps->area, chunk, rw, 0); if (r) return r; @@ -254,20 +255,7 @@ static void zero_memory_area(struct pstore *ps) static int zero_disk_area(struct pstore *ps, chunk_t area) { - struct dm_io_region where = { - .bdev = ps->store->cow->bdev, - .sector = ps->store->chunk_size * area_location(ps, area), - .count = ps->store->chunk_size, - }; - struct dm_io_request io_req = { - .bi_rw = WRITE, - .mem.type = DM_IO_VMA, - .mem.ptr.vma = ps->zero_area, - .client = ps->io_client, - .notify.fn = NULL, - }; - - return dm_io(&io_req, 1, &where, NULL); + return chunk_io(ps, ps->zero_area, area_location(ps, area), WRITE, 0); } static int read_header(struct pstore *ps, int *new_snapshot) @@ -297,7 +285,7 @@ static int read_header(struct pstore *ps, int *new_snapshot) if (r) return r; - r = chunk_io(ps, 0, READ, 1); + r = chunk_io(ps, ps->area, 0, READ, 1); if (r) goto bad; @@ -359,7 +347,7 @@ static int write_header(struct pstore *ps) dh->version = cpu_to_le32(ps->version); dh->chunk_size = cpu_to_le32(ps->store->chunk_size); - return chunk_io(ps, 0, WRITE, 1); + return chunk_io(ps, ps->area, 0, WRITE, 1); } /* -- cgit v0.10.2 From 61578dcd3fafe6babd72e8db32110cc0b630a432 Mon Sep 17 00:00:00 2001 From: Mikulas Patocka Date: Fri, 4 Sep 2009 20:40:39 +0100 Subject: dm snapshot: fix header corruption race on invalidation If a persistent snapshot fills up, a race can corrupt the on-disk header which causes a crash on any future attempt to activate the snapshot (typically while booting). This patch fixes the race. When the snapshot overflows, __invalidate_snapshot is called, which calls snapshot store method drop_snapshot. It goes to persistent_drop_snapshot that calls write_header. write_header constructs the new header in the "area" location. Concurrently, an existing kcopyd job may finish, call copy_callback and commit_exception method, that goes to persistent_commit_exception. persistent_commit_exception doesn't do locking, relying on the fact that callbacks are single-threaded, but it can race with snapshot invalidation and overwrite the header that is just being written while the snapshot is being invalidated. The result of this race is a corrupted header being written that can lead to a crash on further reactivation (if chunk_size is zero in the corrupted header). The fix is to use separate memory areas for each. See the bug: https://bugzilla.redhat.com/show_bug.cgi?id=461506 Cc: stable@kernel.org Signed-off-by: Mikulas Patocka Signed-off-by: Alasdair G Kergon diff --git a/drivers/md/dm-snap-persistent.c b/drivers/md/dm-snap-persistent.c index 2a3d626..5d1a975 100644 --- a/drivers/md/dm-snap-persistent.c +++ b/drivers/md/dm-snap-persistent.c @@ -106,6 +106,13 @@ struct pstore { void *zero_area; /* + * An area used for header. The header can be written + * concurrently with metadata (when invalidating the snapshot), + * so it needs a separate buffer. + */ + void *header_area; + + /* * Used to keep track of which metadata area the data in * 'chunk' refers to. */ @@ -148,16 +155,27 @@ static int alloc_area(struct pstore *ps) */ ps->area = vmalloc(len); if (!ps->area) - return r; + goto err_area; ps->zero_area = vmalloc(len); - if (!ps->zero_area) { - vfree(ps->area); - return r; - } + if (!ps->zero_area) + goto err_zero_area; memset(ps->zero_area, 0, len); + ps->header_area = vmalloc(len); + if (!ps->header_area) + goto err_header_area; + return 0; + +err_header_area: + vfree(ps->zero_area); + +err_zero_area: + vfree(ps->area); + +err_area: + return r; } static void free_area(struct pstore *ps) @@ -169,6 +187,10 @@ static void free_area(struct pstore *ps) if (ps->zero_area) vfree(ps->zero_area); ps->zero_area = NULL; + + if (ps->header_area) + vfree(ps->header_area); + ps->header_area = NULL; } struct mdata_req { @@ -285,11 +307,11 @@ static int read_header(struct pstore *ps, int *new_snapshot) if (r) return r; - r = chunk_io(ps, ps->area, 0, READ, 1); + r = chunk_io(ps, ps->header_area, 0, READ, 1); if (r) goto bad; - dh = (struct disk_header *) ps->area; + dh = ps->header_area; if (le32_to_cpu(dh->magic) == 0) { *new_snapshot = 1; @@ -339,15 +361,15 @@ static int write_header(struct pstore *ps) { struct disk_header *dh; - memset(ps->area, 0, ps->store->chunk_size << SECTOR_SHIFT); + memset(ps->header_area, 0, ps->store->chunk_size << SECTOR_SHIFT); - dh = (struct disk_header *) ps->area; + dh = ps->header_area; dh->magic = cpu_to_le32(SNAP_MAGIC); dh->valid = cpu_to_le32(ps->valid); dh->version = cpu_to_le32(ps->version); dh->chunk_size = cpu_to_le32(ps->store->chunk_size); - return chunk_io(ps, ps->area, 0, WRITE, 1); + return chunk_io(ps, ps->header_area, 0, WRITE, 1); } /* @@ -667,6 +689,8 @@ static int persistent_ctr(struct dm_exception_store *store, ps->valid = 1; ps->version = SNAPSHOT_DISK_VERSION; ps->area = NULL; + ps->zero_area = NULL; + ps->header_area = NULL; ps->next_free = 2; /* skipping the header and first area */ ps->current_committed = 0; -- cgit v0.10.2 From 2defcc3fb4661e7351cb2ac48d843efc4c64db13 Mon Sep 17 00:00:00 2001 From: Mikulas Patocka Date: Fri, 4 Sep 2009 20:40:41 +0100 Subject: dm exception store: split set_chunk_size Break the function set_chunk_size to two functions in preparation for the fix in the following patch. Cc: stable@kernel.org Signed-off-by: Mikulas Patocka Signed-off-by: Alasdair G Kergon diff --git a/drivers/md/dm-exception-store.c b/drivers/md/dm-exception-store.c index 3710ff8..4c01c75 100644 --- a/drivers/md/dm-exception-store.c +++ b/drivers/md/dm-exception-store.c @@ -171,6 +171,14 @@ static int set_chunk_size(struct dm_exception_store *store, */ chunk_size_ulong = round_up(chunk_size_ulong, PAGE_SIZE >> 9); + return dm_exception_store_set_chunk_size(store, chunk_size_ulong, + error); +} + +int dm_exception_store_set_chunk_size(struct dm_exception_store *store, + unsigned long chunk_size_ulong, + char **error) +{ /* Check chunk_size is a power of 2 */ if (!is_power_of_2(chunk_size_ulong)) { *error = "Chunk size is not a power of 2"; diff --git a/drivers/md/dm-exception-store.h b/drivers/md/dm-exception-store.h index 2442c8c..812c718 100644 --- a/drivers/md/dm-exception-store.h +++ b/drivers/md/dm-exception-store.h @@ -168,6 +168,10 @@ static inline chunk_t sector_to_chunk(struct dm_exception_store *store, int dm_exception_store_type_register(struct dm_exception_store_type *type); int dm_exception_store_type_unregister(struct dm_exception_store_type *type); +int dm_exception_store_set_chunk_size(struct dm_exception_store *store, + unsigned long chunk_size_ulong, + char **error); + int dm_exception_store_create(struct dm_target *ti, int argc, char **argv, unsigned *args_used, struct dm_exception_store **store); -- cgit v0.10.2 From ae0b7448e91353ea5f821601a055aca6b58042cd Mon Sep 17 00:00:00 2001 From: Mikulas Patocka Date: Fri, 4 Sep 2009 20:40:43 +0100 Subject: dm snapshot: fix on disk chunk size validation Fix some problems seen in the chunk size processing when activating a pre-existing snapshot. For a new snapshot, the chunk size can either be supplied by the creator or a default value can be used. For an existing snapshot, the chunk size in the snapshot header on disk should always be used. If someone attempts to load an existing snapshot and has the 'default chunk size' option set, the kernel uses its default value even when it is incorrect for the snapshot being loaded. This patch ensures the correct on-disk value is always used. Secondly, when the code does use the chunk size stored on the disk it is prudent to revalidate it, so the code can exit cleanly if it got corrupted as happened in https://bugzilla.redhat.com/show_bug.cgi?id=461506 . Cc: stable@kernel.org Signed-off-by: Mikulas Patocka Signed-off-by: Alasdair G Kergon diff --git a/drivers/md/dm-exception-store.c b/drivers/md/dm-exception-store.c index 4c01c75..556acff 100644 --- a/drivers/md/dm-exception-store.c +++ b/drivers/md/dm-exception-store.c @@ -191,6 +191,11 @@ int dm_exception_store_set_chunk_size(struct dm_exception_store *store, return -EINVAL; } + if (chunk_size_ulong > INT_MAX >> SECTOR_SHIFT) { + *error = "Chunk size is too high"; + return -EINVAL; + } + store->chunk_size = chunk_size_ulong; store->chunk_mask = chunk_size_ulong - 1; store->chunk_shift = ffs(chunk_size_ulong) - 1; diff --git a/drivers/md/dm-snap-persistent.c b/drivers/md/dm-snap-persistent.c index 5d1a975..d5b2e08 100644 --- a/drivers/md/dm-snap-persistent.c +++ b/drivers/md/dm-snap-persistent.c @@ -286,6 +286,7 @@ static int read_header(struct pstore *ps, int *new_snapshot) struct disk_header *dh; chunk_t chunk_size; int chunk_size_supplied = 1; + char *chunk_err; /* * Use default chunk size (or hardsect_size, if larger) if none supplied @@ -329,20 +330,25 @@ static int read_header(struct pstore *ps, int *new_snapshot) ps->version = le32_to_cpu(dh->version); chunk_size = le32_to_cpu(dh->chunk_size); - if (!chunk_size_supplied || ps->store->chunk_size == chunk_size) + if (ps->store->chunk_size == chunk_size) return 0; - DMWARN("chunk size %llu in device metadata overrides " - "table chunk size of %llu.", - (unsigned long long)chunk_size, - (unsigned long long)ps->store->chunk_size); + if (chunk_size_supplied) + DMWARN("chunk size %llu in device metadata overrides " + "table chunk size of %llu.", + (unsigned long long)chunk_size, + (unsigned long long)ps->store->chunk_size); /* We had a bogus chunk_size. Fix stuff up. */ free_area(ps); - ps->store->chunk_size = chunk_size; - ps->store->chunk_mask = chunk_size - 1; - ps->store->chunk_shift = ffs(chunk_size) - 1; + r = dm_exception_store_set_chunk_size(ps->store, chunk_size, + &chunk_err); + if (r) { + DMERR("invalid on-disk chunk size %llu: %s.", + (unsigned long long)chunk_size, chunk_err); + return r; + } r = dm_io_client_resize(sectors_to_pages(ps->store->chunk_size), ps->io_client); -- cgit v0.10.2 From c58b43218c1a04a0bcf338ea47406c759ac28e11 Mon Sep 17 00:00:00 2001 From: Li Zefan Date: Tue, 1 Sep 2009 13:31:38 +0800 Subject: tracing/filters: Defer pred allocation, fix memory leak The predicates of an event and their filter structure are allocated when we create an event filter for the first time. These objects must be created once but each time we come with a new filter, we overwrite such pre-existing allocation, if any. Thus, this patch checks if the filter has already been allocated before going ahead. Spotted-by: Frederic Weisbecker Signed-off-by: Li Zefan Cc: Steven Rostedt Cc: Tom Zanussi Cc: Masami Hiramatsu LKML-Reference: <4A9CB1BA.3060402@cn.fujitsu.com> Signed-off-by: Frederic Weisbecker diff --git a/kernel/trace/trace_events_filter.c b/kernel/trace/trace_events_filter.c index c6b2edf..93660fb 100644 --- a/kernel/trace/trace_events_filter.c +++ b/kernel/trace/trace_events_filter.c @@ -409,6 +409,9 @@ static int init_preds(struct ftrace_event_call *call) struct filter_pred *pred; int i; + if (call->filter) + return 0; + filter = call->filter = kzalloc(sizeof(*filter), GFP_KERNEL); if (!call->filter) return -ENOMEM; @@ -447,11 +450,9 @@ static int init_subsystem_preds(struct event_subsystem *system) if (strcmp(call->system, system->name) != 0) continue; - if (!call->filter) { - err = init_preds(call); - if (err) - return err; - } + err = init_preds(call); + if (err) + return err; } return 0; -- cgit v0.10.2 From 8379e7c46cc48f51197dd663fc6676f47f2a1e71 Mon Sep 17 00:00:00 2001 From: Sunil Mushran Date: Fri, 4 Sep 2009 11:12:01 -0700 Subject: ocfs2: ocfs2_write_begin_nolock() should handle len=0 Bug introduced by mainline commit e7432675f8ca868a4af365759a8d4c3779a3d922 The bug causes ocfs2_write_begin_nolock() to oops when len=0. Signed-off-by: Sunil Mushran Cc: stable@kernel.org Signed-off-by: Joel Becker diff --git a/fs/ocfs2/aops.c b/fs/ocfs2/aops.c index b401654..8a1e615 100644 --- a/fs/ocfs2/aops.c +++ b/fs/ocfs2/aops.c @@ -1747,8 +1747,8 @@ int ocfs2_write_begin_nolock(struct address_space *mapping, * we know zeros will only be needed in the first and/or last cluster. */ if (clusters_to_alloc || extents_to_split || - wc->w_desc[0].c_needs_zero || - wc->w_desc[wc->w_clen - 1].c_needs_zero) + (wc->w_clen && (wc->w_desc[0].c_needs_zero || + wc->w_desc[wc->w_clen - 1].c_needs_zero))) cluster_of_pages = 1; else cluster_of_pages = 0; -- cgit v0.10.2 From 4a88d44ab17da5f8a238050d1b43dfd2e204bc2f Mon Sep 17 00:00:00 2001 From: Albin Tonnerre Date: Mon, 31 Aug 2009 22:40:08 +0200 Subject: tracing: Remove mentioning of legacy latency_trace file from documentation The latency_trace file got removed a while back by commit 886b5b73d71e4027d7dc6c14f5f7ab102201ea6b and has been replaced by the latency-format option. This patch fixes the documentation by reflecting this change. Changes since v1: - mention that the trace format is configurable through the latency-format option - Fix a couple mistakes related to the timestamps Signed-off-by: Albin Tonnerre Cc: Steven Rostedt LKML-Reference: <20090831204007.GE4237@pc-ras4041.res.insa> Signed-off-by: Frederic Weisbecker diff --git a/Documentation/trace/ftrace.txt b/Documentation/trace/ftrace.txt index a39b3c7..355d0f1 100644 --- a/Documentation/trace/ftrace.txt +++ b/Documentation/trace/ftrace.txt @@ -85,26 +85,19 @@ of ftrace. Here is a list of some of the key files: This file holds the output of the trace in a human readable format (described below). - latency_trace: - - This file shows the same trace but the information - is organized more to display possible latencies - in the system (described below). - trace_pipe: The output is the same as the "trace" file but this file is meant to be streamed with live tracing. - Reads from this file will block until new data - is retrieved. Unlike the "trace" and "latency_trace" - files, this file is a consumer. This means reading - from this file causes sequential reads to display - more current data. Once data is read from this - file, it is consumed, and will not be read - again with a sequential read. The "trace" and - "latency_trace" files are static, and if the - tracer is not adding more data, they will display - the same information every time they are read. + Reads from this file will block until new data is + retrieved. Unlike the "trace" file, this file is a + consumer. This means reading from this file causes + sequential reads to display more current data. Once + data is read from this file, it is consumed, and + will not be read again with a sequential read. The + "trace" file is static, and if the tracer is not + adding more data,they will display the same + information every time they are read. trace_options: @@ -117,10 +110,10 @@ of ftrace. Here is a list of some of the key files: Some of the tracers record the max latency. For example, the time interrupts are disabled. This time is saved in this file. The max trace - will also be stored, and displayed by either - "trace" or "latency_trace". A new max trace will - only be recorded if the latency is greater than - the value in this file. (in microseconds) + will also be stored, and displayed by "trace". + A new max trace will only be recorded if the + latency is greater than the value in this + file. (in microseconds) buffer_size_kb: @@ -210,7 +203,7 @@ Here is the list of current tracers that may be configured. the trace with the longest max latency. See tracing_max_latency. When a new max is recorded, it replaces the old trace. It is best to view this - trace via the latency_trace file. + trace with the latency-format option enabled. "preemptoff" @@ -307,8 +300,8 @@ the lowest priority thread (pid 0). Latency trace format -------------------- -For traces that display latency times, the latency_trace file -gives somewhat more information to see why a latency happened. +When the latency-format option is enabled, the trace file gives +somewhat more information to see why a latency happened. Here is a typical trace. # tracer: irqsoff @@ -380,9 +373,10 @@ explains which is which. The above is mostly meaningful for kernel developers. - time: This differs from the trace file output. The trace file output - includes an absolute timestamp. The timestamp used by the - latency_trace file is relative to the start of the trace. + time: When the latency-format option is enabled, the trace file + output includes a timestamp relative to the start of the + trace. This differs from the output when latency-format + is disabled, which includes an absolute timestamp. delay: This is just to help catch your eye a bit better. And needs to be fixed to be only relative to the same CPU. @@ -440,7 +434,8 @@ Here are the available options: sym-addr: bash-4000 [01] 1477.606694: simple_strtoul - verbose - This deals with the latency_trace file. + verbose - This deals with the trace file when the + latency-format option is enabled. bash 4000 1 0 00000000 00010a95 [58127d26] 1720.415ms \ (+0.000ms): simple_strtoul (strict_strtoul) @@ -472,7 +467,7 @@ Here are the available options: the app is no longer running The lookup is performed when you read - trace,trace_pipe,latency_trace. Example: + trace,trace_pipe. Example: a.out-1623 [000] 40874.465068: /root/a.out[+0x480] <-/root/a.out[+0 x494] <- /root/a.out[+0x4a8] <- /lib/libc-2.7.so[+0x1e1a6] @@ -481,6 +476,11 @@ x494] <- /root/a.out[+0x4a8] <- /lib/libc-2.7.so[+0x1e1a6] every scheduling event. Will add overhead if there's a lot of tasks running at once. + latency-format - This option changes the trace. When + it is enabled, the trace displays + additional information about the + latencies, as described in "Latency + trace format". sched_switch ------------ @@ -596,12 +596,13 @@ To reset the maximum, echo 0 into tracing_max_latency. Here is an example: # echo irqsoff > current_tracer + # echo latency-format > trace_options # echo 0 > tracing_max_latency # echo 1 > tracing_enabled # ls -ltr [...] # echo 0 > tracing_enabled - # cat latency_trace + # cat trace # tracer: irqsoff # irqsoff latency trace v1.1.5 on 2.6.26 @@ -703,12 +704,13 @@ which preemption was disabled. The control of preemptoff tracer is much like the irqsoff tracer. # echo preemptoff > current_tracer + # echo latency-format > trace_options # echo 0 > tracing_max_latency # echo 1 > tracing_enabled # ls -ltr [...] # echo 0 > tracing_enabled - # cat latency_trace + # cat trace # tracer: preemptoff # preemptoff latency trace v1.1.5 on 2.6.26-rc8 @@ -850,12 +852,13 @@ Again, using this trace is much like the irqsoff and preemptoff tracers. # echo preemptirqsoff > current_tracer + # echo latency-format > trace_options # echo 0 > tracing_max_latency # echo 1 > tracing_enabled # ls -ltr [...] # echo 0 > tracing_enabled - # cat latency_trace + # cat trace # tracer: preemptirqsoff # preemptirqsoff latency trace v1.1.5 on 2.6.26-rc8 @@ -1012,11 +1015,12 @@ Instead of performing an 'ls', we will run 'sleep 1' under 'chrt' which changes the priority of the task. # echo wakeup > current_tracer + # echo latency-format > trace_options # echo 0 > tracing_max_latency # echo 1 > tracing_enabled # chrt -f 5 sleep 1 # echo 0 > tracing_enabled - # cat latency_trace + # cat trace # tracer: wakeup # wakeup latency trace v1.1.5 on 2.6.26-rc8 -- cgit v0.10.2 From 2f26ebd549b9ab55ac756b836ec759c11fe93f81 Mon Sep 17 00:00:00 2001 From: Steven Rostedt Date: Tue, 1 Sep 2009 11:06:29 -0400 Subject: tracing: use timestamp to determine start of latency traces Currently the latency tracers reset the ring buffer. Unfortunately if a commit is in process (due to a trace event), this can corrupt the ring buffer. When this happens, the ring buffer will detect the corruption and then permanently disable the ring buffer. The bug does not crash the system, but it does prevent further tracing after the bug is hit. Instead of reseting the trace buffers, the timestamp of the start of the trace is used instead. The buffers will still contain the previous data, but the output will not count any data that is before the timestamp of the trace. Note, this only affects the static trace output (trace) and not the runtime trace output (trace_pipe). The runtime trace output does not make sense for the latency tracers anyway. Reported-by: Arnaldo Carvalho de Melo Signed-off-by: Steven Rostedt diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c index 54517a8..7daf372 100644 --- a/kernel/trace/trace.c +++ b/kernel/trace/trace.c @@ -454,10 +454,6 @@ update_max_tr(struct trace_array *tr, struct task_struct *tsk, int cpu) tr->buffer = max_tr.buffer; max_tr.buffer = buf; - ftrace_disable_cpu(); - ring_buffer_reset(tr->buffer); - ftrace_enable_cpu(); - __update_max_tr(tr, tsk, cpu); __raw_spin_unlock(&ftrace_max_lock); } @@ -483,7 +479,6 @@ update_max_tr_single(struct trace_array *tr, struct task_struct *tsk, int cpu) ftrace_disable_cpu(); - ring_buffer_reset(max_tr.buffer); ret = ring_buffer_swap_cpu(max_tr.buffer, tr->buffer, cpu); ftrace_enable_cpu(); @@ -1374,6 +1369,37 @@ static void *s_next(struct seq_file *m, void *v, loff_t *pos) return ent; } +static void tracing_iter_reset(struct trace_iterator *iter, int cpu) +{ + struct trace_array *tr = iter->tr; + struct ring_buffer_event *event; + struct ring_buffer_iter *buf_iter; + unsigned long entries = 0; + u64 ts; + + tr->data[cpu]->skipped_entries = 0; + + if (!iter->buffer_iter[cpu]) + return; + + buf_iter = iter->buffer_iter[cpu]; + ring_buffer_iter_reset(buf_iter); + + /* + * We could have the case with the max latency tracers + * that a reset never took place on a cpu. This is evident + * by the timestamp being before the start of the buffer. + */ + while ((event = ring_buffer_iter_peek(buf_iter, &ts))) { + if (ts >= iter->tr->time_start) + break; + entries++; + ring_buffer_read(buf_iter, NULL); + } + + tr->data[cpu]->skipped_entries = entries; +} + /* * No necessary locking here. The worst thing which can * happen is loosing events consumed at the same time @@ -1412,10 +1438,9 @@ static void *s_start(struct seq_file *m, loff_t *pos) if (cpu_file == TRACE_PIPE_ALL_CPU) { for_each_tracing_cpu(cpu) - ring_buffer_iter_reset(iter->buffer_iter[cpu]); + tracing_iter_reset(iter, cpu); } else - ring_buffer_iter_reset(iter->buffer_iter[cpu_file]); - + tracing_iter_reset(iter, cpu_file); ftrace_enable_cpu(); @@ -1464,16 +1489,32 @@ print_trace_header(struct seq_file *m, struct trace_iterator *iter) struct trace_array *tr = iter->tr; struct trace_array_cpu *data = tr->data[tr->cpu]; struct tracer *type = current_trace; - unsigned long total; - unsigned long entries; + unsigned long entries = 0; + unsigned long total = 0; + unsigned long count; const char *name = "preemption"; + int cpu; if (type) name = type->name; - entries = ring_buffer_entries(iter->tr->buffer); - total = entries + - ring_buffer_overruns(iter->tr->buffer); + + for_each_tracing_cpu(cpu) { + count = ring_buffer_entries_cpu(tr->buffer, cpu); + /* + * If this buffer has skipped entries, then we hold all + * entries for the trace and we need to ignore the + * ones before the time stamp. + */ + if (tr->data[cpu]->skipped_entries) { + count -= tr->data[cpu]->skipped_entries; + /* total is the same as the entries */ + total += count; + } else + total += count + + ring_buffer_overrun_cpu(tr->buffer, cpu); + entries += count; + } seq_printf(m, "# %s latency trace v1.1.5 on %s\n", name, UTS_RELEASE); @@ -1534,6 +1575,9 @@ static void test_cpu_buff_start(struct trace_iterator *iter) if (cpumask_test_cpu(iter->cpu, iter->started)) return; + if (iter->tr->data[iter->cpu]->skipped_entries) + return; + cpumask_set_cpu(iter->cpu, iter->started); /* Don't print started cpu buffer for the first entry of the trace */ @@ -1796,19 +1840,23 @@ __tracing_open(struct inode *inode, struct file *file) if (ring_buffer_overruns(iter->tr->buffer)) iter->iter_flags |= TRACE_FILE_ANNOTATE; + /* stop the trace while dumping */ + tracing_stop(); + if (iter->cpu_file == TRACE_PIPE_ALL_CPU) { for_each_tracing_cpu(cpu) { iter->buffer_iter[cpu] = ring_buffer_read_start(iter->tr->buffer, cpu); + tracing_iter_reset(iter, cpu); } } else { cpu = iter->cpu_file; iter->buffer_iter[cpu] = ring_buffer_read_start(iter->tr->buffer, cpu); + tracing_iter_reset(iter, cpu); } - /* TODO stop tracer */ ret = seq_open(file, &tracer_seq_ops); if (ret < 0) { fail_ret = ERR_PTR(ret); @@ -1818,9 +1866,6 @@ __tracing_open(struct inode *inode, struct file *file) m = file->private_data; m->private = iter; - /* stop the trace while dumping */ - tracing_stop(); - mutex_unlock(&trace_types_lock); return iter; @@ -1831,6 +1876,7 @@ __tracing_open(struct inode *inode, struct file *file) ring_buffer_read_finish(iter->buffer_iter[cpu]); } free_cpumask_var(iter->started); + tracing_start(); fail: mutex_unlock(&trace_types_lock); kfree(iter->trace); diff --git a/kernel/trace/trace.h b/kernel/trace/trace.h index f2af713..ca070de 100644 --- a/kernel/trace/trace.h +++ b/kernel/trace/trace.h @@ -241,6 +241,7 @@ struct trace_array_cpu { unsigned long nice; unsigned long policy; unsigned long rt_priority; + unsigned long skipped_entries; cycle_t preempt_timestamp; pid_t pid; uid_t uid; diff --git a/kernel/trace/trace_irqsoff.c b/kernel/trace/trace_irqsoff.c index b923d13..5555b75 100644 --- a/kernel/trace/trace_irqsoff.c +++ b/kernel/trace/trace_irqsoff.c @@ -178,7 +178,6 @@ out_unlock: out: data->critical_sequence = max_sequence; data->preempt_timestamp = ftrace_now(cpu); - tracing_reset(tr, cpu); trace_function(tr, CALLER_ADDR0, parent_ip, flags, pc); } @@ -208,7 +207,6 @@ start_critical_timing(unsigned long ip, unsigned long parent_ip) data->critical_sequence = max_sequence; data->preempt_timestamp = ftrace_now(cpu); data->critical_start = parent_ip ? : ip; - tracing_reset(tr, cpu); local_save_flags(flags); @@ -379,6 +377,7 @@ static void __irqsoff_tracer_init(struct trace_array *tr) irqsoff_trace = tr; /* make sure that the tracer is visible */ smp_wmb(); + tracing_reset_online_cpus(tr); start_irqsoff_tracer(tr); } diff --git a/kernel/trace/trace_sched_wakeup.c b/kernel/trace/trace_sched_wakeup.c index eacb272..ad69f10 100644 --- a/kernel/trace/trace_sched_wakeup.c +++ b/kernel/trace/trace_sched_wakeup.c @@ -186,11 +186,6 @@ out: static void __wakeup_reset(struct trace_array *tr) { - int cpu; - - for_each_possible_cpu(cpu) - tracing_reset(tr, cpu); - wakeup_cpu = -1; wakeup_prio = -1; @@ -204,6 +199,8 @@ static void wakeup_reset(struct trace_array *tr) { unsigned long flags; + tracing_reset_online_cpus(tr); + local_irq_save(flags); __raw_spin_lock(&wakeup_lock); __wakeup_reset(tr); -- cgit v0.10.2 From f633903af2ceb0cec07d45e499a072b6593d0ed1 Mon Sep 17 00:00:00 2001 From: Steven Rostedt Date: Fri, 4 Sep 2009 12:35:16 -0400 Subject: tracing: make tracing_reset safe for external use Reseting the trace buffer without first disabling the buffer and waiting for any writers to complete, can corrupt the ring buffer. This patch makes the external version of tracing_reset safe from corruption by disabling the ring buffer and calling synchronize_sched. This version can no longer be called from interrupt context. But all those callers have been removed. Signed-off-by: Steven Rostedt diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c index 7daf372..0418e26 100644 --- a/kernel/trace/trace.c +++ b/kernel/trace/trace.c @@ -641,13 +641,26 @@ void unregister_tracer(struct tracer *type) mutex_unlock(&trace_types_lock); } -void tracing_reset(struct trace_array *tr, int cpu) +static void __tracing_reset(struct trace_array *tr, int cpu) { ftrace_disable_cpu(); ring_buffer_reset_cpu(tr->buffer, cpu); ftrace_enable_cpu(); } +void tracing_reset(struct trace_array *tr, int cpu) +{ + struct ring_buffer *buffer = tr->buffer; + + ring_buffer_record_disable(buffer); + + /* Make sure all commits have finished */ + synchronize_sched(); + __tracing_reset(tr, cpu); + + ring_buffer_record_enable(buffer); +} + void tracing_reset_online_cpus(struct trace_array *tr) { struct ring_buffer *buffer = tr->buffer; @@ -661,7 +674,7 @@ void tracing_reset_online_cpus(struct trace_array *tr) tr->time_start = ftrace_now(tr->cpu); for_each_online_cpu(cpu) - tracing_reset(tr, cpu); + __tracing_reset(tr, cpu); ring_buffer_record_enable(buffer); } -- cgit v0.10.2 From e77405ad80f53966524b5c31244e13fbbbecbd84 Mon Sep 17 00:00:00 2001 From: Steven Rostedt Date: Wed, 2 Sep 2009 14:17:06 -0400 Subject: tracing: pass around ring buffer instead of tracer The latency tracers (irqsoff and wakeup) can swap trace buffers on the fly. If an event is happening and has reserved data on one of the buffers, and the latency tracer swaps the global buffer with the max buffer, the result is that the event may commit the data to the wrong buffer. This patch changes the API to the trace recording to be recieve the buffer that was used to reserve a commit. Then this buffer can be passed in to the commit. Signed-off-by: Steven Rostedt diff --git a/include/linux/ftrace_event.h b/include/linux/ftrace_event.h index 7554804..23f7179 100644 --- a/include/linux/ftrace_event.h +++ b/include/linux/ftrace_event.h @@ -93,13 +93,17 @@ void tracing_generic_entry_update(struct trace_entry *entry, unsigned long flags, int pc); struct ring_buffer_event * -trace_current_buffer_lock_reserve(int type, unsigned long len, +trace_current_buffer_lock_reserve(struct ring_buffer **current_buffer, + int type, unsigned long len, unsigned long flags, int pc); -void trace_current_buffer_unlock_commit(struct ring_buffer_event *event, +void trace_current_buffer_unlock_commit(struct ring_buffer *buffer, + struct ring_buffer_event *event, unsigned long flags, int pc); -void trace_nowake_buffer_unlock_commit(struct ring_buffer_event *event, +void trace_nowake_buffer_unlock_commit(struct ring_buffer *buffer, + struct ring_buffer_event *event, unsigned long flags, int pc); -void trace_current_buffer_discard_commit(struct ring_buffer_event *event); +void trace_current_buffer_discard_commit(struct ring_buffer *buffer, + struct ring_buffer_event *event); void tracing_record_cmdline(struct task_struct *tsk); @@ -135,7 +139,8 @@ struct ftrace_event_call { extern void destroy_preds(struct ftrace_event_call *call); extern int filter_match_preds(struct ftrace_event_call *call, void *rec); -extern int filter_current_check_discard(struct ftrace_event_call *call, +extern int filter_current_check_discard(struct ring_buffer *buffer, + struct ftrace_event_call *call, void *rec, struct ring_buffer_event *event); diff --git a/include/trace/ftrace.h b/include/trace/ftrace.h index bfbc842..308bafd 100644 --- a/include/trace/ftrace.h +++ b/include/trace/ftrace.h @@ -460,13 +460,15 @@ static void ftrace_profile_disable_##call(struct ftrace_event_call *event_call)\ * { * struct ring_buffer_event *event; * struct ftrace_raw_ *entry; <-- defined in stage 1 + * struct ring_buffer *buffer; * unsigned long irq_flags; * int pc; * * local_save_flags(irq_flags); * pc = preempt_count(); * - * event = trace_current_buffer_lock_reserve(event_.id, + * event = trace_current_buffer_lock_reserve(&buffer, + * event_.id, * sizeof(struct ftrace_raw_), * irq_flags, pc); * if (!event) @@ -476,7 +478,7 @@ static void ftrace_profile_disable_##call(struct ftrace_event_call *event_call)\ * ; <-- Here we assign the entries by the __field and * __array macros. * - * trace_current_buffer_unlock_commit(event, irq_flags, pc); + * trace_current_buffer_unlock_commit(buffer, event, irq_flags, pc); * } * * static int ftrace_raw_reg_event_(void) @@ -568,6 +570,7 @@ static void ftrace_raw_event_##call(proto) \ struct ftrace_event_call *event_call = &event_##call; \ struct ring_buffer_event *event; \ struct ftrace_raw_##call *entry; \ + struct ring_buffer *buffer; \ unsigned long irq_flags; \ int __data_size; \ int pc; \ @@ -577,7 +580,8 @@ static void ftrace_raw_event_##call(proto) \ \ __data_size = ftrace_get_offsets_##call(&__data_offsets, args); \ \ - event = trace_current_buffer_lock_reserve(event_##call.id, \ + event = trace_current_buffer_lock_reserve(&buffer, \ + event_##call.id, \ sizeof(*entry) + __data_size, \ irq_flags, pc); \ if (!event) \ @@ -589,8 +593,9 @@ static void ftrace_raw_event_##call(proto) \ \ { assign; } \ \ - if (!filter_current_check_discard(event_call, entry, event)) \ - trace_nowake_buffer_unlock_commit(event, irq_flags, pc); \ + if (!filter_current_check_discard(buffer, event_call, entry, event)) \ + trace_nowake_buffer_unlock_commit(buffer, \ + event, irq_flags, pc); \ } \ \ static int ftrace_raw_reg_event_##call(void *ptr) \ diff --git a/kernel/trace/blktrace.c b/kernel/trace/blktrace.c index 1090b0a..243bafc 100644 --- a/kernel/trace/blktrace.c +++ b/kernel/trace/blktrace.c @@ -65,13 +65,15 @@ static void trace_note(struct blk_trace *bt, pid_t pid, int action, { struct blk_io_trace *t; struct ring_buffer_event *event = NULL; + struct ring_buffer *buffer = NULL; int pc = 0; int cpu = smp_processor_id(); bool blk_tracer = blk_tracer_enabled; if (blk_tracer) { + buffer = blk_tr->buffer; pc = preempt_count(); - event = trace_buffer_lock_reserve(blk_tr, TRACE_BLK, + event = trace_buffer_lock_reserve(buffer, TRACE_BLK, sizeof(*t) + len, 0, pc); if (!event) @@ -96,7 +98,7 @@ record_it: memcpy((void *) t + sizeof(*t), data, len); if (blk_tracer) - trace_buffer_unlock_commit(blk_tr, event, 0, pc); + trace_buffer_unlock_commit(buffer, event, 0, pc); } } @@ -179,6 +181,7 @@ static void __blk_add_trace(struct blk_trace *bt, sector_t sector, int bytes, { struct task_struct *tsk = current; struct ring_buffer_event *event = NULL; + struct ring_buffer *buffer = NULL; struct blk_io_trace *t; unsigned long flags = 0; unsigned long *sequence; @@ -204,8 +207,9 @@ static void __blk_add_trace(struct blk_trace *bt, sector_t sector, int bytes, if (blk_tracer) { tracing_record_cmdline(current); + buffer = blk_tr->buffer; pc = preempt_count(); - event = trace_buffer_lock_reserve(blk_tr, TRACE_BLK, + event = trace_buffer_lock_reserve(buffer, TRACE_BLK, sizeof(*t) + pdu_len, 0, pc); if (!event) @@ -252,7 +256,7 @@ record_it: memcpy((void *) t + sizeof(*t), pdu_data, pdu_len); if (blk_tracer) { - trace_buffer_unlock_commit(blk_tr, event, 0, pc); + trace_buffer_unlock_commit(buffer, event, 0, pc); return; } } diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c index 0418e26..0c61836 100644 --- a/kernel/trace/trace.c +++ b/kernel/trace/trace.c @@ -169,10 +169,11 @@ static struct trace_array global_trace; static DEFINE_PER_CPU(struct trace_array_cpu, global_trace_cpu); -int filter_current_check_discard(struct ftrace_event_call *call, void *rec, +int filter_current_check_discard(struct ring_buffer *buffer, + struct ftrace_event_call *call, void *rec, struct ring_buffer_event *event) { - return filter_check_discard(call, rec, global_trace.buffer, event); + return filter_check_discard(call, rec, buffer, event); } EXPORT_SYMBOL_GPL(filter_current_check_discard); @@ -887,14 +888,15 @@ tracing_generic_entry_update(struct trace_entry *entry, unsigned long flags, } EXPORT_SYMBOL_GPL(tracing_generic_entry_update); -struct ring_buffer_event *trace_buffer_lock_reserve(struct trace_array *tr, - int type, - unsigned long len, - unsigned long flags, int pc) +struct ring_buffer_event * +trace_buffer_lock_reserve(struct ring_buffer *buffer, + int type, + unsigned long len, + unsigned long flags, int pc) { struct ring_buffer_event *event; - event = ring_buffer_lock_reserve(tr->buffer, len); + event = ring_buffer_lock_reserve(buffer, len); if (event != NULL) { struct trace_entry *ent = ring_buffer_event_data(event); @@ -905,53 +907,59 @@ struct ring_buffer_event *trace_buffer_lock_reserve(struct trace_array *tr, return event; } -static inline void __trace_buffer_unlock_commit(struct trace_array *tr, - struct ring_buffer_event *event, - unsigned long flags, int pc, - int wake) +static inline void +__trace_buffer_unlock_commit(struct ring_buffer *buffer, + struct ring_buffer_event *event, + unsigned long flags, int pc, + int wake) { - ring_buffer_unlock_commit(tr->buffer, event); + ring_buffer_unlock_commit(buffer, event); - ftrace_trace_stack(tr, flags, 6, pc); - ftrace_trace_userstack(tr, flags, pc); + ftrace_trace_stack(buffer, flags, 6, pc); + ftrace_trace_userstack(buffer, flags, pc); if (wake) trace_wake_up(); } -void trace_buffer_unlock_commit(struct trace_array *tr, - struct ring_buffer_event *event, - unsigned long flags, int pc) +void trace_buffer_unlock_commit(struct ring_buffer *buffer, + struct ring_buffer_event *event, + unsigned long flags, int pc) { - __trace_buffer_unlock_commit(tr, event, flags, pc, 1); + __trace_buffer_unlock_commit(buffer, event, flags, pc, 1); } struct ring_buffer_event * -trace_current_buffer_lock_reserve(int type, unsigned long len, +trace_current_buffer_lock_reserve(struct ring_buffer **current_rb, + int type, unsigned long len, unsigned long flags, int pc) { - return trace_buffer_lock_reserve(&global_trace, + *current_rb = global_trace.buffer; + return trace_buffer_lock_reserve(*current_rb, type, len, flags, pc); } EXPORT_SYMBOL_GPL(trace_current_buffer_lock_reserve); -void trace_current_buffer_unlock_commit(struct ring_buffer_event *event, +void trace_current_buffer_unlock_commit(struct ring_buffer *buffer, + struct ring_buffer_event *event, unsigned long flags, int pc) { - __trace_buffer_unlock_commit(&global_trace, event, flags, pc, 1); + __trace_buffer_unlock_commit(buffer, event, flags, pc, 1); } EXPORT_SYMBOL_GPL(trace_current_buffer_unlock_commit); -void trace_nowake_buffer_unlock_commit(struct ring_buffer_event *event, - unsigned long flags, int pc) +void trace_nowake_buffer_unlock_commit(struct ring_buffer *buffer, + struct ring_buffer_event *event, + unsigned long flags, int pc) { - __trace_buffer_unlock_commit(&global_trace, event, flags, pc, 0); + __trace_buffer_unlock_commit(buffer, event, flags, pc, 0); } EXPORT_SYMBOL_GPL(trace_nowake_buffer_unlock_commit); -void trace_current_buffer_discard_commit(struct ring_buffer_event *event) +void trace_current_buffer_discard_commit(struct ring_buffer *buffer, + struct ring_buffer_event *event) { - ring_buffer_discard_commit(global_trace.buffer, event); + ring_buffer_discard_commit(buffer, event); } EXPORT_SYMBOL_GPL(trace_current_buffer_discard_commit); @@ -961,6 +969,7 @@ trace_function(struct trace_array *tr, int pc) { struct ftrace_event_call *call = &event_function; + struct ring_buffer *buffer = tr->buffer; struct ring_buffer_event *event; struct ftrace_entry *entry; @@ -968,7 +977,7 @@ trace_function(struct trace_array *tr, if (unlikely(local_read(&__get_cpu_var(ftrace_cpu_disabled)))) return; - event = trace_buffer_lock_reserve(tr, TRACE_FN, sizeof(*entry), + event = trace_buffer_lock_reserve(buffer, TRACE_FN, sizeof(*entry), flags, pc); if (!event) return; @@ -976,8 +985,8 @@ trace_function(struct trace_array *tr, entry->ip = ip; entry->parent_ip = parent_ip; - if (!filter_check_discard(call, entry, tr->buffer, event)) - ring_buffer_unlock_commit(tr->buffer, event); + if (!filter_check_discard(call, entry, buffer, event)) + ring_buffer_unlock_commit(buffer, event); } void @@ -990,7 +999,7 @@ ftrace(struct trace_array *tr, struct trace_array_cpu *data, } #ifdef CONFIG_STACKTRACE -static void __ftrace_trace_stack(struct trace_array *tr, +static void __ftrace_trace_stack(struct ring_buffer *buffer, unsigned long flags, int skip, int pc) { @@ -999,7 +1008,7 @@ static void __ftrace_trace_stack(struct trace_array *tr, struct stack_entry *entry; struct stack_trace trace; - event = trace_buffer_lock_reserve(tr, TRACE_STACK, + event = trace_buffer_lock_reserve(buffer, TRACE_STACK, sizeof(*entry), flags, pc); if (!event) return; @@ -1012,26 +1021,27 @@ static void __ftrace_trace_stack(struct trace_array *tr, trace.entries = entry->caller; save_stack_trace(&trace); - if (!filter_check_discard(call, entry, tr->buffer, event)) - ring_buffer_unlock_commit(tr->buffer, event); + if (!filter_check_discard(call, entry, buffer, event)) + ring_buffer_unlock_commit(buffer, event); } -void ftrace_trace_stack(struct trace_array *tr, unsigned long flags, int skip, - int pc) +void ftrace_trace_stack(struct ring_buffer *buffer, unsigned long flags, + int skip, int pc) { if (!(trace_flags & TRACE_ITER_STACKTRACE)) return; - __ftrace_trace_stack(tr, flags, skip, pc); + __ftrace_trace_stack(buffer, flags, skip, pc); } void __trace_stack(struct trace_array *tr, unsigned long flags, int skip, int pc) { - __ftrace_trace_stack(tr, flags, skip, pc); + __ftrace_trace_stack(tr->buffer, flags, skip, pc); } -void ftrace_trace_userstack(struct trace_array *tr, unsigned long flags, int pc) +void +ftrace_trace_userstack(struct ring_buffer *buffer, unsigned long flags, int pc) { struct ftrace_event_call *call = &event_user_stack; struct ring_buffer_event *event; @@ -1041,7 +1051,7 @@ void ftrace_trace_userstack(struct trace_array *tr, unsigned long flags, int pc) if (!(trace_flags & TRACE_ITER_USERSTACKTRACE)) return; - event = trace_buffer_lock_reserve(tr, TRACE_USER_STACK, + event = trace_buffer_lock_reserve(buffer, TRACE_USER_STACK, sizeof(*entry), flags, pc); if (!event) return; @@ -1055,8 +1065,8 @@ void ftrace_trace_userstack(struct trace_array *tr, unsigned long flags, int pc) trace.entries = entry->caller; save_stack_trace_user(&trace); - if (!filter_check_discard(call, entry, tr->buffer, event)) - ring_buffer_unlock_commit(tr->buffer, event); + if (!filter_check_discard(call, entry, buffer, event)) + ring_buffer_unlock_commit(buffer, event); } #ifdef UNUSED @@ -1075,9 +1085,10 @@ ftrace_trace_special(void *__tr, { struct ring_buffer_event *event; struct trace_array *tr = __tr; + struct ring_buffer *buffer = tr->buffer; struct special_entry *entry; - event = trace_buffer_lock_reserve(tr, TRACE_SPECIAL, + event = trace_buffer_lock_reserve(buffer, TRACE_SPECIAL, sizeof(*entry), 0, pc); if (!event) return; @@ -1085,7 +1096,7 @@ ftrace_trace_special(void *__tr, entry->arg1 = arg1; entry->arg2 = arg2; entry->arg3 = arg3; - trace_buffer_unlock_commit(tr, event, 0, pc); + trace_buffer_unlock_commit(buffer, event, 0, pc); } void @@ -1131,6 +1142,7 @@ int trace_vbprintk(unsigned long ip, const char *fmt, va_list args) struct ftrace_event_call *call = &event_bprint; struct ring_buffer_event *event; + struct ring_buffer *buffer; struct trace_array *tr = &global_trace; struct trace_array_cpu *data; struct bprint_entry *entry; @@ -1163,7 +1175,9 @@ int trace_vbprintk(unsigned long ip, const char *fmt, va_list args) goto out_unlock; size = sizeof(*entry) + sizeof(u32) * len; - event = trace_buffer_lock_reserve(tr, TRACE_BPRINT, size, flags, pc); + buffer = tr->buffer; + event = trace_buffer_lock_reserve(buffer, TRACE_BPRINT, size, + flags, pc); if (!event) goto out_unlock; entry = ring_buffer_event_data(event); @@ -1171,8 +1185,8 @@ int trace_vbprintk(unsigned long ip, const char *fmt, va_list args) entry->fmt = fmt; memcpy(entry->buf, trace_buf, sizeof(u32) * len); - if (!filter_check_discard(call, entry, tr->buffer, event)) - ring_buffer_unlock_commit(tr->buffer, event); + if (!filter_check_discard(call, entry, buffer, event)) + ring_buffer_unlock_commit(buffer, event); out_unlock: __raw_spin_unlock(&trace_buf_lock); @@ -1194,6 +1208,7 @@ int trace_vprintk(unsigned long ip, const char *fmt, va_list args) struct ftrace_event_call *call = &event_print; struct ring_buffer_event *event; + struct ring_buffer *buffer; struct trace_array *tr = &global_trace; struct trace_array_cpu *data; int cpu, len = 0, size, pc; @@ -1222,7 +1237,9 @@ int trace_vprintk(unsigned long ip, const char *fmt, va_list args) trace_buf[len] = 0; size = sizeof(*entry) + len + 1; - event = trace_buffer_lock_reserve(tr, TRACE_PRINT, size, irq_flags, pc); + buffer = tr->buffer; + event = trace_buffer_lock_reserve(buffer, TRACE_PRINT, size, + irq_flags, pc); if (!event) goto out_unlock; entry = ring_buffer_event_data(event); @@ -1230,8 +1247,8 @@ int trace_vprintk(unsigned long ip, const char *fmt, va_list args) memcpy(&entry->buf, trace_buf, len); entry->buf[len] = 0; - if (!filter_check_discard(call, entry, tr->buffer, event)) - ring_buffer_unlock_commit(tr->buffer, event); + if (!filter_check_discard(call, entry, buffer, event)) + ring_buffer_unlock_commit(buffer, event); out_unlock: __raw_spin_unlock(&trace_buf_lock); diff --git a/kernel/trace/trace.h b/kernel/trace/trace.h index ca070de..4d30414 100644 --- a/kernel/trace/trace.h +++ b/kernel/trace/trace.h @@ -415,12 +415,13 @@ void init_tracer_sysprof_debugfs(struct dentry *d_tracer); struct ring_buffer_event; -struct ring_buffer_event *trace_buffer_lock_reserve(struct trace_array *tr, - int type, - unsigned long len, - unsigned long flags, - int pc); -void trace_buffer_unlock_commit(struct trace_array *tr, +struct ring_buffer_event * +trace_buffer_lock_reserve(struct ring_buffer *buffer, + int type, + unsigned long len, + unsigned long flags, + int pc); +void trace_buffer_unlock_commit(struct ring_buffer *buffer, struct ring_buffer_event *event, unsigned long flags, int pc); @@ -481,10 +482,10 @@ void update_max_tr_single(struct trace_array *tr, #endif /* CONFIG_TRACER_MAX_TRACE */ #ifdef CONFIG_STACKTRACE -void ftrace_trace_stack(struct trace_array *tr, unsigned long flags, +void ftrace_trace_stack(struct ring_buffer *buffer, unsigned long flags, int skip, int pc); -void ftrace_trace_userstack(struct trace_array *tr, unsigned long flags, +void ftrace_trace_userstack(struct ring_buffer *buffer, unsigned long flags, int pc); void __trace_stack(struct trace_array *tr, unsigned long flags, int skip, diff --git a/kernel/trace/trace_boot.c b/kernel/trace/trace_boot.c index 8631393..19bfc75 100644 --- a/kernel/trace/trace_boot.c +++ b/kernel/trace/trace_boot.c @@ -130,6 +130,7 @@ struct tracer boot_tracer __read_mostly = void trace_boot_call(struct boot_trace_call *bt, initcall_t fn) { struct ring_buffer_event *event; + struct ring_buffer *buffer; struct trace_boot_call *entry; struct trace_array *tr = boot_trace; @@ -142,13 +143,14 @@ void trace_boot_call(struct boot_trace_call *bt, initcall_t fn) sprint_symbol(bt->func, (unsigned long)fn); preempt_disable(); - event = trace_buffer_lock_reserve(tr, TRACE_BOOT_CALL, + buffer = tr->buffer; + event = trace_buffer_lock_reserve(buffer, TRACE_BOOT_CALL, sizeof(*entry), 0, 0); if (!event) goto out; entry = ring_buffer_event_data(event); entry->boot_call = *bt; - trace_buffer_unlock_commit(tr, event, 0, 0); + trace_buffer_unlock_commit(buffer, event, 0, 0); out: preempt_enable(); } @@ -156,6 +158,7 @@ void trace_boot_call(struct boot_trace_call *bt, initcall_t fn) void trace_boot_ret(struct boot_trace_ret *bt, initcall_t fn) { struct ring_buffer_event *event; + struct ring_buffer *buffer; struct trace_boot_ret *entry; struct trace_array *tr = boot_trace; @@ -165,13 +168,14 @@ void trace_boot_ret(struct boot_trace_ret *bt, initcall_t fn) sprint_symbol(bt->func, (unsigned long)fn); preempt_disable(); - event = trace_buffer_lock_reserve(tr, TRACE_BOOT_RET, + buffer = tr->buffer; + event = trace_buffer_lock_reserve(buffer, TRACE_BOOT_RET, sizeof(*entry), 0, 0); if (!event) goto out; entry = ring_buffer_event_data(event); entry->boot_ret = *bt; - trace_buffer_unlock_commit(tr, event, 0, 0); + trace_buffer_unlock_commit(buffer, event, 0, 0); out: preempt_enable(); } diff --git a/kernel/trace/trace_events.c b/kernel/trace/trace_events.c index d33bcde..78b1ed2 100644 --- a/kernel/trace/trace_events.c +++ b/kernel/trace/trace_events.c @@ -1438,6 +1438,7 @@ static void function_test_events_call(unsigned long ip, unsigned long parent_ip) { struct ring_buffer_event *event; + struct ring_buffer *buffer; struct ftrace_entry *entry; unsigned long flags; long disabled; @@ -1455,7 +1456,8 @@ function_test_events_call(unsigned long ip, unsigned long parent_ip) local_save_flags(flags); - event = trace_current_buffer_lock_reserve(TRACE_FN, sizeof(*entry), + event = trace_current_buffer_lock_reserve(&buffer, + TRACE_FN, sizeof(*entry), flags, pc); if (!event) goto out; @@ -1463,7 +1465,7 @@ function_test_events_call(unsigned long ip, unsigned long parent_ip) entry->ip = ip; entry->parent_ip = parent_ip; - trace_nowake_buffer_unlock_commit(event, flags, pc); + trace_nowake_buffer_unlock_commit(buffer, event, flags, pc); out: atomic_dec(&per_cpu(test_event_disable, cpu)); diff --git a/kernel/trace/trace_functions_graph.c b/kernel/trace/trace_functions_graph.c index 3f4a251..b3749a2 100644 --- a/kernel/trace/trace_functions_graph.c +++ b/kernel/trace/trace_functions_graph.c @@ -173,19 +173,20 @@ static int __trace_graph_entry(struct trace_array *tr, { struct ftrace_event_call *call = &event_funcgraph_entry; struct ring_buffer_event *event; + struct ring_buffer *buffer = tr->buffer; struct ftrace_graph_ent_entry *entry; if (unlikely(local_read(&__get_cpu_var(ftrace_cpu_disabled)))) return 0; - event = trace_buffer_lock_reserve(tr, TRACE_GRAPH_ENT, + event = trace_buffer_lock_reserve(buffer, TRACE_GRAPH_ENT, sizeof(*entry), flags, pc); if (!event) return 0; entry = ring_buffer_event_data(event); entry->graph_ent = *trace; - if (!filter_current_check_discard(call, entry, event)) - ring_buffer_unlock_commit(tr->buffer, event); + if (!filter_current_check_discard(buffer, call, entry, event)) + ring_buffer_unlock_commit(buffer, event); return 1; } @@ -236,19 +237,20 @@ static void __trace_graph_return(struct trace_array *tr, { struct ftrace_event_call *call = &event_funcgraph_exit; struct ring_buffer_event *event; + struct ring_buffer *buffer = tr->buffer; struct ftrace_graph_ret_entry *entry; if (unlikely(local_read(&__get_cpu_var(ftrace_cpu_disabled)))) return; - event = trace_buffer_lock_reserve(tr, TRACE_GRAPH_RET, + event = trace_buffer_lock_reserve(buffer, TRACE_GRAPH_RET, sizeof(*entry), flags, pc); if (!event) return; entry = ring_buffer_event_data(event); entry->ret = *trace; - if (!filter_current_check_discard(call, entry, event)) - ring_buffer_unlock_commit(tr->buffer, event); + if (!filter_current_check_discard(buffer, call, entry, event)) + ring_buffer_unlock_commit(buffer, event); } void trace_graph_return(struct ftrace_graph_ret *trace) diff --git a/kernel/trace/trace_mmiotrace.c b/kernel/trace/trace_mmiotrace.c index d53b45e..c4c9bbd 100644 --- a/kernel/trace/trace_mmiotrace.c +++ b/kernel/trace/trace_mmiotrace.c @@ -307,11 +307,12 @@ static void __trace_mmiotrace_rw(struct trace_array *tr, struct trace_array_cpu *data, struct mmiotrace_rw *rw) { + struct ring_buffer *buffer = tr->buffer; struct ring_buffer_event *event; struct trace_mmiotrace_rw *entry; int pc = preempt_count(); - event = trace_buffer_lock_reserve(tr, TRACE_MMIO_RW, + event = trace_buffer_lock_reserve(buffer, TRACE_MMIO_RW, sizeof(*entry), 0, pc); if (!event) { atomic_inc(&dropped_count); @@ -319,7 +320,7 @@ static void __trace_mmiotrace_rw(struct trace_array *tr, } entry = ring_buffer_event_data(event); entry->rw = *rw; - trace_buffer_unlock_commit(tr, event, 0, pc); + trace_buffer_unlock_commit(buffer, event, 0, pc); } void mmio_trace_rw(struct mmiotrace_rw *rw) @@ -333,11 +334,12 @@ static void __trace_mmiotrace_map(struct trace_array *tr, struct trace_array_cpu *data, struct mmiotrace_map *map) { + struct ring_buffer *buffer = tr->buffer; struct ring_buffer_event *event; struct trace_mmiotrace_map *entry; int pc = preempt_count(); - event = trace_buffer_lock_reserve(tr, TRACE_MMIO_MAP, + event = trace_buffer_lock_reserve(buffer, TRACE_MMIO_MAP, sizeof(*entry), 0, pc); if (!event) { atomic_inc(&dropped_count); @@ -345,7 +347,7 @@ static void __trace_mmiotrace_map(struct trace_array *tr, } entry = ring_buffer_event_data(event); entry->map = *map; - trace_buffer_unlock_commit(tr, event, 0, pc); + trace_buffer_unlock_commit(buffer, event, 0, pc); } void mmio_trace_mapping(struct mmiotrace_map *map) diff --git a/kernel/trace/trace_power.c b/kernel/trace/trace_power.c index a5d5a4f..fe1a00f 100644 --- a/kernel/trace/trace_power.c +++ b/kernel/trace/trace_power.c @@ -38,6 +38,7 @@ static void probe_power_end(struct power_trace *it) { struct ftrace_event_call *call = &event_power; struct ring_buffer_event *event; + struct ring_buffer *buffer; struct trace_power *entry; struct trace_array_cpu *data; struct trace_array *tr = power_trace; @@ -45,18 +46,20 @@ static void probe_power_end(struct power_trace *it) if (!trace_power_enabled) return; + buffer = tr->buffer; + preempt_disable(); it->end = ktime_get(); data = tr->data[smp_processor_id()]; - event = trace_buffer_lock_reserve(tr, TRACE_POWER, + event = trace_buffer_lock_reserve(buffer, TRACE_POWER, sizeof(*entry), 0, 0); if (!event) goto out; entry = ring_buffer_event_data(event); entry->state_data = *it; - if (!filter_check_discard(call, entry, tr->buffer, event)) - trace_buffer_unlock_commit(tr, event, 0, 0); + if (!filter_check_discard(call, entry, buffer, event)) + trace_buffer_unlock_commit(buffer, event, 0, 0); out: preempt_enable(); } @@ -66,6 +69,7 @@ static void probe_power_mark(struct power_trace *it, unsigned int type, { struct ftrace_event_call *call = &event_power; struct ring_buffer_event *event; + struct ring_buffer *buffer; struct trace_power *entry; struct trace_array_cpu *data; struct trace_array *tr = power_trace; @@ -73,6 +77,8 @@ static void probe_power_mark(struct power_trace *it, unsigned int type, if (!trace_power_enabled) return; + buffer = tr->buffer; + memset(it, 0, sizeof(struct power_trace)); it->state = level; it->type = type; @@ -81,14 +87,14 @@ static void probe_power_mark(struct power_trace *it, unsigned int type, it->end = it->stamp; data = tr->data[smp_processor_id()]; - event = trace_buffer_lock_reserve(tr, TRACE_POWER, + event = trace_buffer_lock_reserve(buffer, TRACE_POWER, sizeof(*entry), 0, 0); if (!event) goto out; entry = ring_buffer_event_data(event); entry->state_data = *it; - if (!filter_check_discard(call, entry, tr->buffer, event)) - trace_buffer_unlock_commit(tr, event, 0, 0); + if (!filter_check_discard(call, entry, buffer, event)) + trace_buffer_unlock_commit(buffer, event, 0, 0); out: preempt_enable(); } diff --git a/kernel/trace/trace_sched_switch.c b/kernel/trace/trace_sched_switch.c index e1285d7..5fca0f5 100644 --- a/kernel/trace/trace_sched_switch.c +++ b/kernel/trace/trace_sched_switch.c @@ -28,10 +28,11 @@ tracing_sched_switch_trace(struct trace_array *tr, unsigned long flags, int pc) { struct ftrace_event_call *call = &event_context_switch; + struct ring_buffer *buffer = tr->buffer; struct ring_buffer_event *event; struct ctx_switch_entry *entry; - event = trace_buffer_lock_reserve(tr, TRACE_CTX, + event = trace_buffer_lock_reserve(buffer, TRACE_CTX, sizeof(*entry), flags, pc); if (!event) return; @@ -44,8 +45,8 @@ tracing_sched_switch_trace(struct trace_array *tr, entry->next_state = next->state; entry->next_cpu = task_cpu(next); - if (!filter_check_discard(call, entry, tr->buffer, event)) - trace_buffer_unlock_commit(tr, event, flags, pc); + if (!filter_check_discard(call, entry, buffer, event)) + trace_buffer_unlock_commit(buffer, event, flags, pc); } static void @@ -86,8 +87,9 @@ tracing_sched_wakeup_trace(struct trace_array *tr, struct ftrace_event_call *call = &event_wakeup; struct ring_buffer_event *event; struct ctx_switch_entry *entry; + struct ring_buffer *buffer = tr->buffer; - event = trace_buffer_lock_reserve(tr, TRACE_WAKE, + event = trace_buffer_lock_reserve(buffer, TRACE_WAKE, sizeof(*entry), flags, pc); if (!event) return; @@ -100,10 +102,10 @@ tracing_sched_wakeup_trace(struct trace_array *tr, entry->next_state = wakee->state; entry->next_cpu = task_cpu(wakee); - if (!filter_check_discard(call, entry, tr->buffer, event)) - ring_buffer_unlock_commit(tr->buffer, event); - ftrace_trace_stack(tr, flags, 6, pc); - ftrace_trace_userstack(tr, flags, pc); + if (!filter_check_discard(call, entry, buffer, event)) + ring_buffer_unlock_commit(buffer, event); + ftrace_trace_stack(tr->buffer, flags, 6, pc); + ftrace_trace_userstack(tr->buffer, flags, pc); } static void diff --git a/kernel/trace/trace_syscalls.c b/kernel/trace/trace_syscalls.c index 4f5fae6..8712ce3 100644 --- a/kernel/trace/trace_syscalls.c +++ b/kernel/trace/trace_syscalls.c @@ -223,6 +223,7 @@ void ftrace_syscall_enter(struct pt_regs *regs, long id) struct syscall_trace_enter *entry; struct syscall_metadata *sys_data; struct ring_buffer_event *event; + struct ring_buffer *buffer; int size; int syscall_nr; @@ -238,8 +239,8 @@ void ftrace_syscall_enter(struct pt_regs *regs, long id) size = sizeof(*entry) + sizeof(unsigned long) * sys_data->nb_args; - event = trace_current_buffer_lock_reserve(sys_data->enter_id, size, - 0, 0); + event = trace_current_buffer_lock_reserve(&buffer, sys_data->enter_id, + size, 0, 0); if (!event) return; @@ -247,8 +248,9 @@ void ftrace_syscall_enter(struct pt_regs *regs, long id) entry->nr = syscall_nr; syscall_get_arguments(current, regs, 0, sys_data->nb_args, entry->args); - if (!filter_current_check_discard(sys_data->enter_event, entry, event)) - trace_current_buffer_unlock_commit(event, 0, 0); + if (!filter_current_check_discard(buffer, sys_data->enter_event, + entry, event)) + trace_current_buffer_unlock_commit(buffer, event, 0, 0); } void ftrace_syscall_exit(struct pt_regs *regs, long ret) @@ -256,6 +258,7 @@ void ftrace_syscall_exit(struct pt_regs *regs, long ret) struct syscall_trace_exit *entry; struct syscall_metadata *sys_data; struct ring_buffer_event *event; + struct ring_buffer *buffer; int syscall_nr; syscall_nr = syscall_get_nr(current, regs); @@ -268,7 +271,7 @@ void ftrace_syscall_exit(struct pt_regs *regs, long ret) if (!sys_data) return; - event = trace_current_buffer_lock_reserve(sys_data->exit_id, + event = trace_current_buffer_lock_reserve(&buffer, sys_data->exit_id, sizeof(*entry), 0, 0); if (!event) return; @@ -277,8 +280,9 @@ void ftrace_syscall_exit(struct pt_regs *regs, long ret) entry->nr = syscall_nr; entry->ret = syscall_get_return_value(current, regs); - if (!filter_current_check_discard(sys_data->exit_event, entry, event)) - trace_current_buffer_unlock_commit(event, 0, 0); + if (!filter_current_check_discard(buffer, sys_data->exit_event, + entry, event)) + trace_current_buffer_unlock_commit(buffer, event, 0, 0); } int reg_event_syscall_enter(void *ptr) -- cgit v0.10.2 From 659372d3e42a3e17a2e042d38a8bcdb94bfbe797 Mon Sep 17 00:00:00 2001 From: Steven Rostedt Date: Thu, 3 Sep 2009 19:11:07 -0400 Subject: tracing: add trace_array_printk for internal tracers to use This patch adds a trace_array_printk to allow a tracer to use the trace_printk on its own trace array. Signed-off-by: Steven Rostedt diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c index 0c61836..ef08328 100644 --- a/kernel/trace/trace.c +++ b/kernel/trace/trace.c @@ -1201,7 +1201,23 @@ out: } EXPORT_SYMBOL_GPL(trace_vbprintk); -int trace_vprintk(unsigned long ip, const char *fmt, va_list args) +int trace_array_printk(struct trace_array *tr, + unsigned long ip, const char *fmt, ...) +{ + int ret; + va_list ap; + + if (!(trace_flags & TRACE_ITER_PRINTK)) + return 0; + + va_start(ap, fmt); + ret = trace_array_vprintk(tr, ip, fmt, ap); + va_end(ap); + return ret; +} + +int trace_array_vprintk(struct trace_array *tr, + unsigned long ip, const char *fmt, va_list args) { static raw_spinlock_t trace_buf_lock = __RAW_SPIN_LOCK_UNLOCKED; static char trace_buf[TRACE_BUF_SIZE]; @@ -1209,7 +1225,6 @@ int trace_vprintk(unsigned long ip, const char *fmt, va_list args) struct ftrace_event_call *call = &event_print; struct ring_buffer_event *event; struct ring_buffer *buffer; - struct trace_array *tr = &global_trace; struct trace_array_cpu *data; int cpu, len = 0, size, pc; struct print_entry *entry; @@ -1260,6 +1275,11 @@ int trace_vprintk(unsigned long ip, const char *fmt, va_list args) return len; } + +int trace_vprintk(unsigned long ip, const char *fmt, va_list args) +{ + return trace_array_printk(&global_trace, ip, fmt, args); +} EXPORT_SYMBOL_GPL(trace_vprintk); enum trace_file_type { diff --git a/kernel/trace/trace.h b/kernel/trace/trace.h index 4d30414..fa1dccb 100644 --- a/kernel/trace/trace.h +++ b/kernel/trace/trace.h @@ -566,6 +566,11 @@ extern int trace_vbprintk(unsigned long ip, const char *fmt, va_list args); extern int trace_vprintk(unsigned long ip, const char *fmt, va_list args); +extern int +trace_array_vprintk(struct trace_array *tr, + unsigned long ip, const char *fmt, va_list args); +int trace_array_printk(struct trace_array *tr, + unsigned long ip, const char *fmt, ...); extern unsigned long trace_flags; -- cgit v0.10.2 From e8165dbb03ed04d798163ee512074b9a9466a9c8 Mon Sep 17 00:00:00 2001 From: Steven Rostedt Date: Thu, 3 Sep 2009 19:13:05 -0400 Subject: tracing: report error in trace if we fail to swap latency buffer The irqsoff tracer will fail to swap the cpu buffer with the max buffer if it preempts a commit. Instead of ignoring this, this patch makes the tracer report it if the last max latency failed due to preempting a current commit. The output of the latency tracer will look like this: # tracer: irqsoff # # irqsoff latency trace v1.1.5 on 2.6.31-rc5 # -------------------------------------------------------------------- # latency: 112 us, #1/1, CPU#1 | (M:preempt VP:0, KP:0, SP:0 HP:0 #P:4) # ----------------- # | task: -4281 (uid:0 nice:0 policy:0 rt_prio:0) # ----------------- # => started at: save_args # => ended at: __do_softirq # # # _------=> CPU# # / _-----=> irqs-off # | / _----=> need-resched # || / _---=> hardirq/softirq # ||| / _--=> preempt-depth # |||| / # ||||| delay # cmd pid ||||| time | caller # \ / ||||| \ | / bash-4281 1d.s6 265us : update_max_tr_single: Failed to swap buffers due to commit in progress Note the latency time and the functions that disabled the irqs or preemption will still be listed. Signed-off-by: Steven Rostedt diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c index ef08328..6df9861 100644 --- a/kernel/trace/trace.c +++ b/kernel/trace/trace.c @@ -482,9 +482,20 @@ update_max_tr_single(struct trace_array *tr, struct task_struct *tsk, int cpu) ret = ring_buffer_swap_cpu(max_tr.buffer, tr->buffer, cpu); + if (ret == -EBUSY) { + /* + * We failed to swap the buffer due to a commit taking + * place on this CPU. We fail to record, but we reset + * the max trace buffer (no one writes directly to it) + * and flag that it failed. + */ + trace_array_printk(&max_tr, _THIS_IP_, + "Failed to swap buffers due to commit in progress\n"); + } + ftrace_enable_cpu(); - WARN_ON_ONCE(ret && ret != -EAGAIN); + WARN_ON_ONCE(ret && ret != -EAGAIN && ret != -EBUSY); __update_max_tr(tr, tsk, cpu); __raw_spin_unlock(&ftrace_max_lock); -- cgit v0.10.2 From 62f0b3eb5cb58931a02ee4e599e19c80a171e351 Mon Sep 17 00:00:00 2001 From: Steven Rostedt Date: Fri, 4 Sep 2009 14:11:34 -0400 Subject: ring-buffer: check for swapped buffers in start of committing Because the irqsoff tracer can swap an internal CPU buffer, it is possible that a swap happens between the start of the write and before the committing bit is set (the committing bit will disable swapping). This patch adds a check for this and will fail the write if it detects it. Signed-off-by: Steven Rostedt diff --git a/kernel/trace/ring_buffer.c b/kernel/trace/ring_buffer.c index f83a42a..1766c0e 100644 --- a/kernel/trace/ring_buffer.c +++ b/kernel/trace/ring_buffer.c @@ -2073,7 +2073,8 @@ static void rb_end_commit(struct ring_buffer_per_cpu *cpu_buffer) } static struct ring_buffer_event * -rb_reserve_next_event(struct ring_buffer_per_cpu *cpu_buffer, +rb_reserve_next_event(struct ring_buffer *buffer, + struct ring_buffer_per_cpu *cpu_buffer, unsigned long length) { struct ring_buffer_event *event; @@ -2083,6 +2084,19 @@ rb_reserve_next_event(struct ring_buffer_per_cpu *cpu_buffer, rb_start_commit(cpu_buffer); + /* + * Due to the ability to swap a cpu buffer from a buffer + * it is possible it was swapped before we committed. + * (committing stops a swap). We check for it here and + * if it happened, we have to fail the write. + */ + barrier(); + if (unlikely(ACCESS_ONCE(cpu_buffer->buffer) != buffer)) { + local_dec(&cpu_buffer->committing); + local_dec(&cpu_buffer->commits); + return NULL; + } + length = rb_calculate_event_length(length); again: /* @@ -2243,7 +2257,7 @@ ring_buffer_lock_reserve(struct ring_buffer *buffer, unsigned long length) if (length > BUF_MAX_DATA_SIZE) goto out; - event = rb_reserve_next_event(cpu_buffer, length); + event = rb_reserve_next_event(buffer, cpu_buffer, length); if (!event) goto out; @@ -2476,7 +2490,7 @@ int ring_buffer_write(struct ring_buffer *buffer, if (length > BUF_MAX_DATA_SIZE) goto out; - event = rb_reserve_next_event(cpu_buffer, length); + event = rb_reserve_next_event(buffer, cpu_buffer, length); if (!event) goto out; -- cgit v0.10.2 From 85bac32c4a52c592b857f2c360cc5ec93a097d70 Mon Sep 17 00:00:00 2001 From: Steven Rostedt Date: Fri, 4 Sep 2009 14:24:40 -0400 Subject: ring-buffer: only enable ring_buffer_swap_cpu when needed Since the ability to swap the cpu buffers adds a small overhead to the recording of a trace, we only want to add it when needed. Only the irqsoff and preemptoff tracers use this feature, and both are not recommended for production kernels. This patch disables its use when neither irqsoff nor preemptoff is configured. Signed-off-by: Steven Rostedt diff --git a/include/linux/ring_buffer.h b/include/linux/ring_buffer.h index e061b4e..5fcc31e 100644 --- a/include/linux/ring_buffer.h +++ b/include/linux/ring_buffer.h @@ -140,8 +140,17 @@ unsigned long ring_buffer_size(struct ring_buffer *buffer); void ring_buffer_reset_cpu(struct ring_buffer *buffer, int cpu); void ring_buffer_reset(struct ring_buffer *buffer); +#ifdef CONFIG_RING_BUFFER_ALLOW_SWAP int ring_buffer_swap_cpu(struct ring_buffer *buffer_a, struct ring_buffer *buffer_b, int cpu); +#else +static inline int +ring_buffer_swap_cpu(struct ring_buffer *buffer_a, + struct ring_buffer *buffer_b, int cpu) +{ + return -ENODEV; +} +#endif int ring_buffer_empty(struct ring_buffer *buffer); int ring_buffer_empty_cpu(struct ring_buffer *buffer, int cpu); diff --git a/kernel/trace/Kconfig b/kernel/trace/Kconfig index 163fbfc..1ea0d12 100644 --- a/kernel/trace/Kconfig +++ b/kernel/trace/Kconfig @@ -62,6 +62,12 @@ config EVENT_TRACING config CONTEXT_SWITCH_TRACER bool +config RING_BUFFER_ALLOW_SWAP + bool + help + Allow the use of ring_buffer_swap_cpu. + Adds a very slight overhead to tracing when enabled. + # All tracer options should select GENERIC_TRACER. For those options that are # enabled by all tracers (context switch and event tracer) they select TRACING. # This allows those options to appear when no other tracer is selected. But the @@ -146,6 +152,7 @@ config IRQSOFF_TRACER select TRACE_IRQFLAGS select GENERIC_TRACER select TRACER_MAX_TRACE + select RING_BUFFER_ALLOW_SWAP help This option measures the time spent in irqs-off critical sections, with microsecond accuracy. @@ -167,6 +174,7 @@ config PREEMPT_TRACER depends on PREEMPT select GENERIC_TRACER select TRACER_MAX_TRACE + select RING_BUFFER_ALLOW_SWAP help This option measures the time spent in preemption off critical sections, with microsecond accuracy. diff --git a/kernel/trace/ring_buffer.c b/kernel/trace/ring_buffer.c index 1766c0e..454e74e 100644 --- a/kernel/trace/ring_buffer.c +++ b/kernel/trace/ring_buffer.c @@ -2084,6 +2084,7 @@ rb_reserve_next_event(struct ring_buffer *buffer, rb_start_commit(cpu_buffer); +#ifdef CONFIG_RING_BUFFER_ALLOW_SWAP /* * Due to the ability to swap a cpu buffer from a buffer * it is possible it was swapped before we committed. @@ -2096,6 +2097,7 @@ rb_reserve_next_event(struct ring_buffer *buffer, local_dec(&cpu_buffer->commits); return NULL; } +#endif length = rb_calculate_event_length(length); again: @@ -3498,6 +3500,7 @@ int ring_buffer_empty_cpu(struct ring_buffer *buffer, int cpu) } EXPORT_SYMBOL_GPL(ring_buffer_empty_cpu); +#ifdef CONFIG_RING_BUFFER_ALLOW_SWAP /** * ring_buffer_swap_cpu - swap a CPU buffer between two ring buffers * @buffer_a: One buffer to swap with @@ -3573,6 +3576,7 @@ out: return ret; } EXPORT_SYMBOL_GPL(ring_buffer_swap_cpu); +#endif /* CONFIG_RING_BUFFER_ALLOW_SWAP */ /** * ring_buffer_alloc_read_page - allocate a page to read from buffer -- cgit v0.10.2 From 1821bc19d54009b6f5e6462dd79074d728080839 Mon Sep 17 00:00:00 2001 From: Stefan Richter Date: Sat, 5 Sep 2009 13:23:49 +0200 Subject: firewire: core: fix crash in iso resource management This fixes a regression due to post 2.6.30 commit "firewire: core: do not DMA-map stack addresses" 6fdc03709433ccc2005f0f593ae9d9dd04f7b485. As David Moore noted, a previously correct sizeof() expression became wrong since the commit changed its argument from an array to a pointer. This resulted in an oops in ohci_cancel_packet in the shared workqueue thread's context when an isochronous resource was to be freed. Reported-by: Jonathan Cameron Signed-off-by: Stefan Richter diff --git a/drivers/firewire/core-iso.c b/drivers/firewire/core-iso.c index 110e731..1c0b504 100644 --- a/drivers/firewire/core-iso.c +++ b/drivers/firewire/core-iso.c @@ -196,7 +196,7 @@ static int manage_bandwidth(struct fw_card *card, int irm_id, int generation, switch (fw_run_transaction(card, TCODE_LOCK_COMPARE_SWAP, irm_id, generation, SCODE_100, CSR_REGISTER_BASE + CSR_BANDWIDTH_AVAILABLE, - data, sizeof(data))) { + data, 8)) { case RCODE_GENERATION: /* A generation change frees all bandwidth. */ return allocate ? -EAGAIN : bandwidth; @@ -233,7 +233,7 @@ static int manage_channel(struct fw_card *card, int irm_id, int generation, data[1] = old ^ c; switch (fw_run_transaction(card, TCODE_LOCK_COMPARE_SWAP, irm_id, generation, SCODE_100, - offset, data, sizeof(data))) { + offset, data, 8)) { case RCODE_GENERATION: /* A generation change frees all channels. */ return allocate ? -EAGAIN : i; -- cgit v0.10.2 From fc383796a8cc5df0a0c8633a16dd2e9528a16a63 Mon Sep 17 00:00:00 2001 From: Stefan Richter Date: Fri, 28 Aug 2009 13:25:15 +0200 Subject: firewire: ohci: fix Agere FW643 and multiple cameras An Agere FW643 OHCI 1.1 card works fine for video reception from one camera but fails early if receiving from two cameras. After a short while, no IR IRQ events occur and the context control register does not react anymore. This happens regardless whether both IR DMA contexts are dual-buffer or one is dual-buffer and the other packet-per-buffer. This can be worked around by disabling dual buffer DMA mode entirely. http://sourceforge.net/mailarchive/message.php?msg_name=4A7C0594.2020208%40gmail.com (Reported by Samuel Audet.) In another report (by Jonathan Cameron), an FW643 works OK with two cameras in dual buffer mode. Whether this is due to different chip revisions or different usage patterns (different video formats) is not yet clear. However, as far as the current capabilities of firewire-core's isochronous I/O interface are concerned, simply switching off dual-buffer on non-working and working FW643s alike is not a problem in practice. We only need to revisit this issue if we are going to enhance the interface, e.g. so that applications can explicitly choose modes. Reported-by: Samuel Audet Reported-by: Jonathan Cameron Signed-off-by: Stefan Richter diff --git a/drivers/firewire/ohci.c b/drivers/firewire/ohci.c index ecddd11..3486bc4 100644 --- a/drivers/firewire/ohci.c +++ b/drivers/firewire/ohci.c @@ -34,6 +34,7 @@ #include #include #include +#include #include #include @@ -2372,6 +2373,9 @@ static void ohci_pmac_off(struct pci_dev *dev) #define ohci_pmac_off(dev) #endif /* CONFIG_PPC_PMAC */ +#define PCI_VENDOR_ID_AGERE PCI_VENDOR_ID_ATT +#define PCI_DEVICE_ID_AGERE_FW643 0x5901 + static int __devinit pci_probe(struct pci_dev *dev, const struct pci_device_id *ent) { @@ -2422,6 +2426,11 @@ static int __devinit pci_probe(struct pci_dev *dev, version = reg_read(ohci, OHCI1394_Version) & 0x00ff00ff; ohci->use_dualbuffer = version >= OHCI_VERSION_1_1; + /* dual-buffer mode is broken if more than one IR context is active */ + if (dev->vendor == PCI_VENDOR_ID_AGERE && + dev->device == PCI_DEVICE_ID_AGERE_FW643) + ohci->use_dualbuffer = false; + /* x86-32 currently doesn't use highmem for dma_alloc_coherent */ #if !defined(CONFIG_X86_32) /* dual-buffer mode is broken with descriptor addresses above 2G */ -- cgit v0.10.2 From 4fe0badd5882c64dc2dcd8893f9b85db63339736 Mon Sep 17 00:00:00 2001 From: Stefan Richter Date: Fri, 28 Aug 2009 13:26:03 +0200 Subject: firewire: ohci: fix Ricoh R5C832, video reception In dual-buffer DMA mode, no video frames are ever received from R5C832 by libdc1394. Fallback to packet-per-buffer DMA works reliably. http://thread.gmane.org/gmane.linux.kernel.firewire.devel/13393/focus=13476 Reported-by: Jonathan Cameron Signed-off-by: Stefan Richter diff --git a/drivers/firewire/ohci.c b/drivers/firewire/ohci.c index 3486bc4..76b321b 100644 --- a/drivers/firewire/ohci.c +++ b/drivers/firewire/ohci.c @@ -2431,6 +2431,11 @@ static int __devinit pci_probe(struct pci_dev *dev, dev->device == PCI_DEVICE_ID_AGERE_FW643) ohci->use_dualbuffer = false; + /* dual-buffer mode is broken */ + if (dev->vendor == PCI_VENDOR_ID_RICOH && + dev->device == PCI_DEVICE_ID_RICOH_R5C832) + ohci->use_dualbuffer = false; + /* x86-32 currently doesn't use highmem for dma_alloc_coherent */ #if !defined(CONFIG_X86_32) /* dual-buffer mode is broken with descriptor addresses above 2G */ -- cgit v0.10.2 From baed6b82d9f160184c1c14cdb4accb08f3eb6b87 Mon Sep 17 00:00:00 2001 From: Stefan Richter Date: Thu, 3 Sep 2009 23:07:35 +0200 Subject: firewire: sbp2: fix freeing of unallocated memory If a target writes invalid status (typically status of a command that already timed out), firewire-sbp2 attempts to put away an ORB that doesn't exist. https://bugzilla.redhat.com/show_bug.cgi?id=519772 Signed-off-by: Stefan Richter diff --git a/drivers/firewire/sbp2.c b/drivers/firewire/sbp2.c index d27cb05..05f0c0c 100644 --- a/drivers/firewire/sbp2.c +++ b/drivers/firewire/sbp2.c @@ -456,12 +456,12 @@ static void sbp2_status_write(struct fw_card *card, struct fw_request *request, } spin_unlock_irqrestore(&card->lock, flags); - if (&orb->link != &lu->orb_list) + if (&orb->link != &lu->orb_list) { orb->callback(orb, &status); - else + kref_put(&orb->kref, free_orb); + } else { fw_error("status write for unknown orb\n"); - - kref_put(&orb->kref, free_orb); + } fw_send_response(card, request, RCODE_COMPLETE); } -- cgit v0.10.2 From 4e49627b9bc29a14b393c480e8c979e3bc922ef7 Mon Sep 17 00:00:00 2001 From: Oleg Nesterov Date: Sat, 5 Sep 2009 11:17:06 -0700 Subject: workqueues: introduce __cancel_delayed_work() cancel_delayed_work() has to use del_timer_sync() to guarantee the timer function is not running after return. But most users doesn't actually need this, and del_timer_sync() has problems: it is not useable from interrupt, and it depends on every lock which could be taken from irq. Introduce __cancel_delayed_work() which calls del_timer() instead. The immediate reason for this patch is http://bugzilla.kernel.org/show_bug.cgi?id=13757 but hopefully this helper makes sense anyway. As for 13757 bug, actually we need requeue_delayed_work(), but its semantics are not yet clear. Merge this patch early to resolves cross-tree interdependencies between input and infiniband. Signed-off-by: Oleg Nesterov Cc: Dmitry Torokhov Cc: Roland Dreier Cc: Stefan Richter Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/include/linux/workqueue.h b/include/linux/workqueue.h index 13e1adf..6273fa9 100644 --- a/include/linux/workqueue.h +++ b/include/linux/workqueue.h @@ -240,6 +240,21 @@ static inline int cancel_delayed_work(struct delayed_work *work) return ret; } +/* + * Like above, but uses del_timer() instead of del_timer_sync(). This means, + * if it returns 0 the timer function may be running and the queueing is in + * progress. + */ +static inline int __cancel_delayed_work(struct delayed_work *work) +{ + int ret; + + ret = del_timer(&work->timer); + if (ret) + work_clear_pending(&work->work); + return ret; +} + extern int cancel_delayed_work_sync(struct delayed_work *work); /* Obsolete. use cancel_delayed_work_sync() */ -- cgit v0.10.2 From a190887b58c32d19c2eee007c5eb8faa970a69ba Mon Sep 17 00:00:00 2001 From: David Howells Date: Sat, 5 Sep 2009 11:17:07 -0700 Subject: nommu: fix error handling in do_mmap_pgoff() Fix the error handling in do_mmap_pgoff(). If do_mmap_shared_file() or do_mmap_private() fail, we jump to the error_put_region label at which point we cann __put_nommu_region() on the region - but we haven't yet added the region to the tree, and so __put_nommu_region() may BUG because the region tree is empty or it may corrupt the region tree. To get around this, we can afford to add the region to the region tree before calling do_mmap_shared_file() or do_mmap_private() as we keep nommu_region_sem write-locked, so no-one can race with us by seeing a transient region. Signed-off-by: David Howells Acked-by: Pekka Enberg Acked-by: Paul Mundt Cc: Mel Gorman Acked-by: Greg Ungerer Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/mm/nommu.c b/mm/nommu.c index 4bde489..66e81e7 100644 --- a/mm/nommu.c +++ b/mm/nommu.c @@ -1352,6 +1352,7 @@ unsigned long do_mmap_pgoff(struct file *file, } vma->vm_region = region; + add_nommu_region(region); /* set up the mapping */ if (file && vma->vm_flags & VM_SHARED) @@ -1361,8 +1362,6 @@ unsigned long do_mmap_pgoff(struct file *file, if (ret < 0) goto error_put_region; - add_nommu_region(region); - /* okay... we have a mapping; now we have to register it */ result = vma->vm_start; -- cgit v0.10.2 From dd5d241ea955006122d76af88af87de73fec25b4 Mon Sep 17 00:00:00 2001 From: Mel Gorman Date: Sat, 5 Sep 2009 11:17:11 -0700 Subject: page-allocator: always change pageblock ownership when anti-fragmentation is disabled On low-memory systems, anti-fragmentation gets disabled as fragmentation cannot be avoided on a sufficiently large boundary to be worthwhile. Once disabled, there is a period of time when all the pageblocks are marked MOVABLE and the expectation is that they get marked UNMOVABLE at each call to __rmqueue_fallback(). However, when MAX_ORDER is large the pageblocks do not change ownership because the normal criteria are not met. This has the effect of prematurely breaking up too many large contiguous blocks. This is most serious on NOMMU systems which depend on high-order allocations to boot. This patch causes pageblocks to change ownership on every fallback when anti-fragmentation is disabled. This prevents the large blocks being prematurely broken up. This is a fix to commit 49255c619fbd482d704289b5eb2795f8e3b7ff2e [page allocator: move check for disabled anti-fragmentation out of fastpath] and the problem affects 2.6.31-rc8. Signed-off-by: Mel Gorman Tested-by: Paul Mundt Cc: David Howells Cc: Pekka Enberg Acked-by: Greg Ungerer Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/mm/page_alloc.c b/mm/page_alloc.c index 5cc986e..a0de15f 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -817,13 +817,15 @@ __rmqueue_fallback(struct zone *zone, int order, int start_migratetype) * agressive about taking ownership of free pages */ if (unlikely(current_order >= (pageblock_order >> 1)) || - start_migratetype == MIGRATE_RECLAIMABLE) { + start_migratetype == MIGRATE_RECLAIMABLE || + page_group_by_mobility_disabled) { unsigned long pages; pages = move_freepages_block(zone, page, start_migratetype); /* Claim the whole block if over half of it is free */ - if (pages >= (1 << (pageblock_order-1))) + if (pages >= (1 << (pageblock_order-1)) || + page_group_by_mobility_disabled) set_pageblock_migratetype(page, start_migratetype); -- cgit v0.10.2 From a2a8474c3fff88d8dd52d05cb450563fb26fd26c Mon Sep 17 00:00:00 2001 From: Oleg Nesterov Date: Sat, 5 Sep 2009 11:17:13 -0700 Subject: exec: do not sleep in TASK_TRACED under ->cred_guard_mutex Tom Horsley reports that his debugger hangs when it tries to read /proc/pid_of_tracee/maps, this happens since "mm_for_maps: take ->cred_guard_mutex to fix the race with exec" 04b836cbf19e885f8366bccb2e4b0474346c02d commit in 2.6.31. But the root of the problem lies in the fact that do_execve() path calls tracehook_report_exec() which can stop if the tracer sets PT_TRACE_EXEC. The tracee must not sleep in TASK_TRACED holding this mutex. Even if we remove ->cred_guard_mutex from mm_for_maps() and proc_pid_attr_write(), another task doing PTRACE_ATTACH should not hang until it is killed or the tracee resumes. With this patch do_execve() does not use ->cred_guard_mutex directly and we do not hold it throughout, instead: - introduce prepare_bprm_creds() helper, it locks the mutex and calls prepare_exec_creds() to initialize bprm->cred. - install_exec_creds() drops the mutex after commit_creds(), and thus before tracehook_report_exec()->ptrace_stop(). or, if exec fails, free_bprm() drops this mutex when bprm->cred != NULL which indicates install_exec_creds() was not called. Reported-by: Tom Horsley Signed-off-by: Oleg Nesterov Acked-by: David Howells Cc: Roland McGrath Cc: James Morris Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/fs/compat.c b/fs/compat.c index 94502da..6d6f98f 100644 --- a/fs/compat.c +++ b/fs/compat.c @@ -1485,20 +1485,15 @@ int compat_do_execve(char * filename, if (!bprm) goto out_files; - retval = -ERESTARTNOINTR; - if (mutex_lock_interruptible(¤t->cred_guard_mutex)) + retval = prepare_bprm_creds(bprm); + if (retval) goto out_free; - current->in_execve = 1; - - retval = -ENOMEM; - bprm->cred = prepare_exec_creds(); - if (!bprm->cred) - goto out_unlock; retval = check_unsafe_exec(bprm); if (retval < 0) - goto out_unlock; + goto out_free; clear_in_exec = retval; + current->in_execve = 1; file = open_exec(filename); retval = PTR_ERR(file); @@ -1547,7 +1542,6 @@ int compat_do_execve(char * filename, /* execve succeeded */ current->fs->in_exec = 0; current->in_execve = 0; - mutex_unlock(¤t->cred_guard_mutex); acct_update_integrals(current); free_bprm(bprm); if (displaced) @@ -1567,10 +1561,7 @@ out_file: out_unmark: if (clear_in_exec) current->fs->in_exec = 0; - -out_unlock: current->in_execve = 0; - mutex_unlock(¤t->cred_guard_mutex); out_free: free_bprm(bprm); diff --git a/fs/exec.c b/fs/exec.c index fb4f3cd..172ceb6 100644 --- a/fs/exec.c +++ b/fs/exec.c @@ -1016,6 +1016,35 @@ out: EXPORT_SYMBOL(flush_old_exec); /* + * Prepare credentials and lock ->cred_guard_mutex. + * install_exec_creds() commits the new creds and drops the lock. + * Or, if exec fails before, free_bprm() should release ->cred and + * and unlock. + */ +int prepare_bprm_creds(struct linux_binprm *bprm) +{ + if (mutex_lock_interruptible(¤t->cred_guard_mutex)) + return -ERESTARTNOINTR; + + bprm->cred = prepare_exec_creds(); + if (likely(bprm->cred)) + return 0; + + mutex_unlock(¤t->cred_guard_mutex); + return -ENOMEM; +} + +void free_bprm(struct linux_binprm *bprm) +{ + free_arg_pages(bprm); + if (bprm->cred) { + mutex_unlock(¤t->cred_guard_mutex); + abort_creds(bprm->cred); + } + kfree(bprm); +} + +/* * install the new credentials for this executable */ void install_exec_creds(struct linux_binprm *bprm) @@ -1024,12 +1053,13 @@ void install_exec_creds(struct linux_binprm *bprm) commit_creds(bprm->cred); bprm->cred = NULL; - - /* cred_guard_mutex must be held at least to this point to prevent + /* + * cred_guard_mutex must be held at least to this point to prevent * ptrace_attach() from altering our determination of the task's - * credentials; any time after this it may be unlocked */ - + * credentials; any time after this it may be unlocked. + */ security_bprm_committed_creds(bprm); + mutex_unlock(¤t->cred_guard_mutex); } EXPORT_SYMBOL(install_exec_creds); @@ -1246,14 +1276,6 @@ int search_binary_handler(struct linux_binprm *bprm,struct pt_regs *regs) EXPORT_SYMBOL(search_binary_handler); -void free_bprm(struct linux_binprm *bprm) -{ - free_arg_pages(bprm); - if (bprm->cred) - abort_creds(bprm->cred); - kfree(bprm); -} - /* * sys_execve() executes a new program. */ @@ -1277,20 +1299,15 @@ int do_execve(char * filename, if (!bprm) goto out_files; - retval = -ERESTARTNOINTR; - if (mutex_lock_interruptible(¤t->cred_guard_mutex)) + retval = prepare_bprm_creds(bprm); + if (retval) goto out_free; - current->in_execve = 1; - - retval = -ENOMEM; - bprm->cred = prepare_exec_creds(); - if (!bprm->cred) - goto out_unlock; retval = check_unsafe_exec(bprm); if (retval < 0) - goto out_unlock; + goto out_free; clear_in_exec = retval; + current->in_execve = 1; file = open_exec(filename); retval = PTR_ERR(file); @@ -1340,7 +1357,6 @@ int do_execve(char * filename, /* execve succeeded */ current->fs->in_exec = 0; current->in_execve = 0; - mutex_unlock(¤t->cred_guard_mutex); acct_update_integrals(current); free_bprm(bprm); if (displaced) @@ -1360,10 +1376,7 @@ out_file: out_unmark: if (clear_in_exec) current->fs->in_exec = 0; - -out_unlock: current->in_execve = 0; - mutex_unlock(¤t->cred_guard_mutex); out_free: free_bprm(bprm); diff --git a/include/linux/binfmts.h b/include/linux/binfmts.h index 61ee18c..2046b5b 100644 --- a/include/linux/binfmts.h +++ b/include/linux/binfmts.h @@ -117,6 +117,7 @@ extern int setup_arg_pages(struct linux_binprm * bprm, int executable_stack); extern int bprm_mm_init(struct linux_binprm *bprm); extern int copy_strings_kernel(int argc,char ** argv,struct linux_binprm *bprm); +extern int prepare_bprm_creds(struct linux_binprm *bprm); extern void install_exec_creds(struct linux_binprm *bprm); extern void do_coredump(long signr, int exit_code, struct pt_regs *regs); extern int set_binfmt(struct linux_binfmt *new); -- cgit v0.10.2 From 37f81fa1f63ad38e16125526bb2769ae0ea8d332 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sat, 5 Sep 2009 12:46:07 -0700 Subject: n_tty: do O_ONLCR translation as a single write When translating CR to CRNL in the n_tty line discipline, we did it as two tty_put_char() calls. Which works, but is stupid, and has caused problems before too with bad interactions with the write_room() logic. The generic USB serial driver had that problem, for example. Now the pty layer had similar issues after being moved to the generic tty buffering code (in commit d945cb9cce20ac7143c2de8d88b187f62db99bdc: "pty: Rework the pty layer to use the normal buffering logic"). So stop doing the silly separate two writes, and do it as a single write instead. That's what the n_tty layer already does for the space expansion of tabs (XTABS), and it means that we'll now always have just a single write for the CRNL to match the single 'tty_write_room()' test, which hopefully means that the next time somebody screws up buffering, it won't cause weeks of debugging. Signed-off-by: Linus Torvalds diff --git a/drivers/char/n_tty.c b/drivers/char/n_tty.c index 973be2f..4e28b35 100644 --- a/drivers/char/n_tty.c +++ b/drivers/char/n_tty.c @@ -300,8 +300,7 @@ static int do_output_char(unsigned char c, struct tty_struct *tty, int space) if (space < 2) return -1; tty->canon_column = tty->column = 0; - tty_put_char(tty, '\r'); - tty_put_char(tty, c); + tty->ops->write(tty, "\r\n", 2); return 2; } tty->canon_column = tty->column; -- cgit v0.10.2 From ac89a9174decf343de049a06fad75681f71890eb Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sat, 5 Sep 2009 13:27:10 -0700 Subject: pty: don't limit the writes to 'pty_space()' inside 'pty_write()' The whole write-room thing is something that is up to the _caller_ to worry about, not the pty layer itself. The total buffer space will still be limited by the buffering routines themselves, so there is no advantage or need in having pty_write() artificially limit the size somehow. And what happened was that the caller (the n_tty line discipline, in this case) may have verified that there is room for 2 bytes to be written (for NL -> CRNL expansion), and it used to then do those writes as two single-byte writes. And if the first byte written (CR) then caused a new tty buffer to be allocated, pty_space() may have returned zero when trying to write the second byte (LF), and then incorrectly failed the write - leading to a lost newline character. This should finally fix http://bugzilla.kernel.org/show_bug.cgi?id=14015 Reported-by: Mikael Pettersson Acked-by: Alan Cox Signed-off-by: Linus Torvalds diff --git a/drivers/char/pty.c b/drivers/char/pty.c index d083c73..b33d668 100644 --- a/drivers/char/pty.c +++ b/drivers/char/pty.c @@ -109,21 +109,13 @@ static int pty_space(struct tty_struct *to) * the other side of the pty/tty pair. */ -static int pty_write(struct tty_struct *tty, const unsigned char *buf, - int count) +static int pty_write(struct tty_struct *tty, const unsigned char *buf, int c) { struct tty_struct *to = tty->link; - int c; if (tty->stopped) return 0; - /* This isn't locked but our 8K is quite sloppy so no - big deal */ - - c = pty_space(to); - if (c > count) - c = count; if (c > 0) { /* Stuff the data into the input queue of the other end */ c = tty_insert_flip_string(to, buf, c); -- cgit v0.10.2 From 9de6886ec6e37f45807266a702bb7621498395ad Mon Sep 17 00:00:00 2001 From: Nicolas Pitre Date: Sat, 5 Sep 2009 00:25:37 -0400 Subject: ext2: fix unbalanced kmap()/kunmap() In ext2_rename(), dir_page is acquired through ext2_dotdot(). It is then released through ext2_set_link() but only if old_dir != new_dir. Failing that, the pkmap reference count is never decremented and the page remains pinned forever. Repeat that a couple times with highmem pages and all pkmap slots get exhausted, and every further kmap() calls end up stalling on the pkmap_map_wait queue at which point the whole system comes to a halt. Signed-off-by: Nicolas Pitre Acked-by: Theodore Ts'o Cc: stable@kernel.org Signed-off-by: Linus Torvalds diff --git a/fs/ext2/namei.c b/fs/ext2/namei.c index e1dedb0..78d9b92 100644 --- a/fs/ext2/namei.c +++ b/fs/ext2/namei.c @@ -362,6 +362,10 @@ static int ext2_rename (struct inode * old_dir, struct dentry * old_dentry, if (dir_de) { if (old_dir != new_dir) ext2_set_link(old_inode, dir_de, dir_page, new_dir, 0); + else { + kunmap(dir_page); + page_cache_release(dir_page); + } inode_dec_link_count(old_dir); } return 0; -- cgit v0.10.2 From 74a01180db4bbfd61304ae0ba1f60af55ffc803d Mon Sep 17 00:00:00 2001 From: Roderick Colenbrander Date: Thu, 3 Sep 2009 09:57:23 -0600 Subject: powerpc: Fix i8259 interrupt driver kernel crash on ML510 This patch fixes a null pointer exception caused by removal of 'ack()' for level interrupts in the Xilinx interrupt driver. A recent change to the xilinx interrupt controller removed the ack hook for level irqs. Signed-off-by: Roderick Colenbrander Signed-off-by: Grant Likely Acked-by: Benjamin Herrenschmidt Signed-off-by: Linus Torvalds diff --git a/arch/powerpc/sysdev/xilinx_intc.c b/arch/powerpc/sysdev/xilinx_intc.c index 3ee1fd3..40edad5 100644 --- a/arch/powerpc/sysdev/xilinx_intc.c +++ b/arch/powerpc/sysdev/xilinx_intc.c @@ -234,7 +234,6 @@ static void xilinx_i8259_cascade(unsigned int irq, struct irq_desc *desc) generic_handle_irq(cascade_irq); /* Let xilinx_intc end the interrupt */ - desc->chip->ack(irq); desc->chip->unmask(irq); } -- cgit v0.10.2 From e07cccf4046978df10f2e13fe2b99b2f9b3a65db Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sat, 5 Sep 2009 16:38:12 -0700 Subject: Linux 2.6.31-rc9 diff --git a/Makefile b/Makefile index 25c615e..7d3415c 100644 --- a/Makefile +++ b/Makefile @@ -1,7 +1,7 @@ VERSION = 2 PATCHLEVEL = 6 SUBLEVEL = 31 -EXTRAVERSION = -rc8 +EXTRAVERSION = -rc9 NAME = Man-Eating Seals of Antiquity # *DOCUMENTATION* -- cgit v0.10.2