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authorIngo Molnar <mingo@elte.hu>2012-03-05 08:20:08 (GMT)
committerIngo Molnar <mingo@elte.hu>2012-03-05 08:20:08 (GMT)
commit737f24bda723fdf89ecaacb99fa2bf5683c32799 (patch)
tree35495fff3e9956679cb5468e74e6814c8e44ee66 /fs
parent8eedce996556d7d06522cd3a0e6069141c8dffe0 (diff)
parentb7c924274c456499264d1cfa3d44063bb11eb5db (diff)
downloadlinux-737f24bda723fdf89ecaacb99fa2bf5683c32799.tar.xz
Merge branch 'perf/urgent' into perf/core
Conflicts: tools/perf/builtin-record.c tools/perf/builtin-top.c tools/perf/perf.h tools/perf/util/top.h Merge reason: resolve these cherry-picking conflicts. Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'fs')
-rw-r--r--fs/autofs4/autofs_i.h1
-rw-r--r--fs/autofs4/dev-ioctl.c1
-rw-r--r--fs/autofs4/expire.c2
-rw-r--r--fs/autofs4/inode.c2
-rw-r--r--fs/autofs4/waitq.c22
-rw-r--r--fs/bio.c10
-rw-r--r--fs/btrfs/backref.c2
-rw-r--r--fs/btrfs/check-integrity.c2
-rw-r--r--fs/btrfs/compression.c2
-rw-r--r--fs/btrfs/ctree.h2
-rw-r--r--fs/btrfs/disk-io.c12
-rw-r--r--fs/btrfs/extent-tree.c51
-rw-r--r--fs/btrfs/extent_io.c113
-rw-r--r--fs/btrfs/extent_io.h1
-rw-r--r--fs/btrfs/extent_map.h4
-rw-r--r--fs/btrfs/file.c29
-rw-r--r--fs/btrfs/free-space-cache.c1
-rw-r--r--fs/btrfs/inode-map.c6
-rw-r--r--fs/btrfs/inode.c40
-rw-r--r--fs/btrfs/ioctl.c59
-rw-r--r--fs/btrfs/scrub.c8
-rw-r--r--fs/btrfs/transaction.c16
-rw-r--r--fs/btrfs/volumes.c33
-rw-r--r--fs/cifs/Kconfig4
-rw-r--r--fs/cifs/connect.c23
-rw-r--r--fs/cifs/dir.c2
-rw-r--r--fs/cifs/sess.c11
-rw-r--r--fs/compat.c56
-rw-r--r--fs/dcache.c8
-rw-r--r--fs/direct-io.c4
-rw-r--r--fs/ecryptfs/crypto.c68
-rw-r--r--fs/ecryptfs/ecryptfs_kernel.h6
-rw-r--r--fs/ecryptfs/inode.c2
-rw-r--r--fs/ecryptfs/keystore.c9
-rw-r--r--fs/ecryptfs/mmap.c4
-rw-r--r--fs/ecryptfs/read_write.c4
-rw-r--r--fs/ecryptfs/super.c14
-rw-r--r--fs/eventpoll.c30
-rw-r--r--fs/exec.c33
-rw-r--r--fs/fs-writeback.c16
-rw-r--r--fs/inode.c8
-rw-r--r--fs/ioprio.c2
-rw-r--r--fs/jffs2/erase.c2
-rw-r--r--fs/namei.c4
-rw-r--r--fs/nfs/nfs4proc.c130
-rw-r--r--fs/nfs/nfs4state.c2
-rw-r--r--fs/nfs/nfs4xdr.c5
-rw-r--r--fs/nilfs2/ioctl.c2
-rw-r--r--fs/ntfs/attrib.c6
-rw-r--r--fs/ntfs/mft.c6
-rw-r--r--fs/ntfs/super.c4
-rw-r--r--fs/ocfs2/namei.c2
-rw-r--r--fs/quota/quota.c24
-rw-r--r--fs/select.c2
-rw-r--r--fs/signalfd.c15
-rw-r--r--fs/super.c22
-rw-r--r--fs/xfs/kmem.h6
-rw-r--r--fs/xfs/xfs_dquot.c127
-rw-r--r--fs/xfs/xfs_log_recover.c8
-rw-r--r--fs/xfs/xfs_qm.c291
-rw-r--r--fs/xfs/xfs_qm.h14
-rw-r--r--fs/xfs/xfs_qm_stats.c4
-rw-r--r--fs/xfs/xfs_qm_syscalls.c4
-rw-r--r--fs/xfs/xfs_trace.h5
-rw-r--r--fs/xfs/xfs_trans.c4
-rw-r--r--fs/xfs/xfs_trans_dquot.c10
66 files changed, 779 insertions, 643 deletions
diff --git a/fs/autofs4/autofs_i.h b/fs/autofs4/autofs_i.h
index d8d8e7b..eb1cc92 100644
--- a/fs/autofs4/autofs_i.h
+++ b/fs/autofs4/autofs_i.h
@@ -110,6 +110,7 @@ struct autofs_sb_info {
int sub_version;
int min_proto;
int max_proto;
+ int compat_daemon;
unsigned long exp_timeout;
unsigned int type;
int reghost_enabled;
diff --git a/fs/autofs4/dev-ioctl.c b/fs/autofs4/dev-ioctl.c
index 76741d8..85f1fcd 100644
--- a/fs/autofs4/dev-ioctl.c
+++ b/fs/autofs4/dev-ioctl.c
@@ -385,6 +385,7 @@ static int autofs_dev_ioctl_setpipefd(struct file *fp,
sbi->pipefd = pipefd;
sbi->pipe = pipe;
sbi->catatonic = 0;
+ sbi->compat_daemon = is_compat_task();
}
out:
mutex_unlock(&sbi->wq_mutex);
diff --git a/fs/autofs4/expire.c b/fs/autofs4/expire.c
index 450f529..1feb68e 100644
--- a/fs/autofs4/expire.c
+++ b/fs/autofs4/expire.c
@@ -124,6 +124,7 @@ start:
/* Negative dentry - try next */
if (!simple_positive(q)) {
spin_unlock(&p->d_lock);
+ lock_set_subclass(&q->d_lock.dep_map, 0, _RET_IP_);
p = q;
goto again;
}
@@ -186,6 +187,7 @@ again:
/* Negative dentry - try next */
if (!simple_positive(ret)) {
spin_unlock(&p->d_lock);
+ lock_set_subclass(&ret->d_lock.dep_map, 0, _RET_IP_);
p = ret;
goto again;
}
diff --git a/fs/autofs4/inode.c b/fs/autofs4/inode.c
index e16980b..06858d9 100644
--- a/fs/autofs4/inode.c
+++ b/fs/autofs4/inode.c
@@ -19,6 +19,7 @@
#include <linux/parser.h>
#include <linux/bitops.h>
#include <linux/magic.h>
+#include <linux/compat.h>
#include "autofs_i.h"
#include <linux/module.h>
@@ -224,6 +225,7 @@ int autofs4_fill_super(struct super_block *s, void *data, int silent)
set_autofs_type_indirect(&sbi->type);
sbi->min_proto = 0;
sbi->max_proto = 0;
+ sbi->compat_daemon = is_compat_task();
mutex_init(&sbi->wq_mutex);
mutex_init(&sbi->pipe_mutex);
spin_lock_init(&sbi->fs_lock);
diff --git a/fs/autofs4/waitq.c b/fs/autofs4/waitq.c
index da8876d..9c098db 100644
--- a/fs/autofs4/waitq.c
+++ b/fs/autofs4/waitq.c
@@ -91,7 +91,24 @@ static int autofs4_write(struct autofs_sb_info *sbi,
return (bytes > 0);
}
-
+
+/*
+ * The autofs_v5 packet was misdesigned.
+ *
+ * The packets are identical on x86-32 and x86-64, but have different
+ * alignment. Which means that 'sizeof()' will give different results.
+ * Fix it up for the case of running 32-bit user mode on a 64-bit kernel.
+ */
+static noinline size_t autofs_v5_packet_size(struct autofs_sb_info *sbi)
+{
+ size_t pktsz = sizeof(struct autofs_v5_packet);
+#if defined(CONFIG_X86_64) && defined(CONFIG_COMPAT)
+ if (sbi->compat_daemon > 0)
+ pktsz -= 4;
+#endif
+ return pktsz;
+}
+
static void autofs4_notify_daemon(struct autofs_sb_info *sbi,
struct autofs_wait_queue *wq,
int type)
@@ -155,8 +172,7 @@ static void autofs4_notify_daemon(struct autofs_sb_info *sbi,
{
struct autofs_v5_packet *packet = &pkt.v5_pkt.v5_packet;
- pktsz = sizeof(*packet);
-
+ pktsz = autofs_v5_packet_size(sbi);
packet->wait_queue_token = wq->wait_queue_token;
packet->len = wq->name.len;
memcpy(packet->name, wq->name.name, wq->name.len);
diff --git a/fs/bio.c b/fs/bio.c
index b1fe82c..b980ecd 100644
--- a/fs/bio.c
+++ b/fs/bio.c
@@ -505,13 +505,9 @@ EXPORT_SYMBOL(bio_clone);
int bio_get_nr_vecs(struct block_device *bdev)
{
struct request_queue *q = bdev_get_queue(bdev);
- int nr_pages;
-
- nr_pages = ((queue_max_sectors(q) << 9) + PAGE_SIZE - 1) >> PAGE_SHIFT;
- if (nr_pages > queue_max_segments(q))
- nr_pages = queue_max_segments(q);
-
- return nr_pages;
+ return min_t(unsigned,
+ queue_max_segments(q),
+ queue_max_sectors(q) / (PAGE_SIZE >> 9) + 1);
}
EXPORT_SYMBOL(bio_get_nr_vecs);
diff --git a/fs/btrfs/backref.c b/fs/btrfs/backref.c
index 633c701..98f6bf10 100644
--- a/fs/btrfs/backref.c
+++ b/fs/btrfs/backref.c
@@ -892,6 +892,8 @@ static char *iref_to_path(struct btrfs_root *fs_root, struct btrfs_path *path,
if (eb != eb_in)
free_extent_buffer(eb);
ret = inode_ref_info(parent, 0, fs_root, path, &found_key);
+ if (ret > 0)
+ ret = -ENOENT;
if (ret)
break;
next_inum = found_key.offset;
diff --git a/fs/btrfs/check-integrity.c b/fs/btrfs/check-integrity.c
index b669a7d..d986824 100644
--- a/fs/btrfs/check-integrity.c
+++ b/fs/btrfs/check-integrity.c
@@ -644,7 +644,7 @@ static struct btrfsic_dev_state *btrfsic_dev_state_hashtable_lookup(
static int btrfsic_process_superblock(struct btrfsic_state *state,
struct btrfs_fs_devices *fs_devices)
{
- int ret;
+ int ret = 0;
struct btrfs_super_block *selected_super;
struct list_head *dev_head = &fs_devices->devices;
struct btrfs_device *device;
diff --git a/fs/btrfs/compression.c b/fs/btrfs/compression.c
index 14f1c5a..d02c27c 100644
--- a/fs/btrfs/compression.c
+++ b/fs/btrfs/compression.c
@@ -588,6 +588,8 @@ int btrfs_submit_compressed_read(struct inode *inode, struct bio *bio,
page_offset(bio->bi_io_vec->bv_page),
PAGE_CACHE_SIZE);
read_unlock(&em_tree->lock);
+ if (!em)
+ return -EIO;
compressed_len = em->block_len;
cb = kmalloc(compressed_bio_size(root, compressed_len), GFP_NOFS);
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index 27ebe61..80b6486 100644
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -886,7 +886,7 @@ struct btrfs_block_rsv {
u64 reserved;
struct btrfs_space_info *space_info;
spinlock_t lock;
- unsigned int full:1;
+ unsigned int full;
};
/*
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index 811d9f9..534266f 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -2260,6 +2260,12 @@ int open_ctree(struct super_block *sb,
goto fail_sb_buffer;
}
+ if (sectorsize < PAGE_SIZE) {
+ printk(KERN_WARNING "btrfs: Incompatible sector size "
+ "found on %s\n", sb->s_id);
+ goto fail_sb_buffer;
+ }
+
mutex_lock(&fs_info->chunk_mutex);
ret = btrfs_read_sys_array(tree_root);
mutex_unlock(&fs_info->chunk_mutex);
@@ -2301,6 +2307,12 @@ int open_ctree(struct super_block *sb,
btrfs_close_extra_devices(fs_devices);
+ if (!fs_devices->latest_bdev) {
+ printk(KERN_CRIT "btrfs: failed to read devices on %s\n",
+ sb->s_id);
+ goto fail_tree_roots;
+ }
+
retry_root_backup:
blocksize = btrfs_level_size(tree_root,
btrfs_super_root_level(disk_super));
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index 283af7a..37e0a80 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -3312,7 +3312,8 @@ commit_trans:
}
data_sinfo->bytes_may_use += bytes;
trace_btrfs_space_reservation(root->fs_info, "space_info",
- (u64)data_sinfo, bytes, 1);
+ (u64)(unsigned long)data_sinfo,
+ bytes, 1);
spin_unlock(&data_sinfo->lock);
return 0;
@@ -3333,7 +3334,8 @@ void btrfs_free_reserved_data_space(struct inode *inode, u64 bytes)
spin_lock(&data_sinfo->lock);
data_sinfo->bytes_may_use -= bytes;
trace_btrfs_space_reservation(root->fs_info, "space_info",
- (u64)data_sinfo, bytes, 0);
+ (u64)(unsigned long)data_sinfo,
+ bytes, 0);
spin_unlock(&data_sinfo->lock);
}
@@ -3611,12 +3613,15 @@ static int may_commit_transaction(struct btrfs_root *root,
if (space_info != delayed_rsv->space_info)
return -ENOSPC;
+ spin_lock(&space_info->lock);
spin_lock(&delayed_rsv->lock);
- if (delayed_rsv->size < bytes) {
+ if (space_info->bytes_pinned + delayed_rsv->size < bytes) {
spin_unlock(&delayed_rsv->lock);
+ spin_unlock(&space_info->lock);
return -ENOSPC;
}
spin_unlock(&delayed_rsv->lock);
+ spin_unlock(&space_info->lock);
commit:
trans = btrfs_join_transaction(root);
@@ -3695,9 +3700,9 @@ again:
if (used + orig_bytes <= space_info->total_bytes) {
space_info->bytes_may_use += orig_bytes;
trace_btrfs_space_reservation(root->fs_info,
- "space_info",
- (u64)space_info,
- orig_bytes, 1);
+ "space_info",
+ (u64)(unsigned long)space_info,
+ orig_bytes, 1);
ret = 0;
} else {
/*
@@ -3766,9 +3771,9 @@ again:
if (used + num_bytes < space_info->total_bytes + avail) {
space_info->bytes_may_use += orig_bytes;
trace_btrfs_space_reservation(root->fs_info,
- "space_info",
- (u64)space_info,
- orig_bytes, 1);
+ "space_info",
+ (u64)(unsigned long)space_info,
+ orig_bytes, 1);
ret = 0;
} else {
wait_ordered = true;
@@ -3913,8 +3918,8 @@ static void block_rsv_release_bytes(struct btrfs_fs_info *fs_info,
spin_lock(&space_info->lock);
space_info->bytes_may_use -= num_bytes;
trace_btrfs_space_reservation(fs_info, "space_info",
- (u64)space_info,
- num_bytes, 0);
+ (u64)(unsigned long)space_info,
+ num_bytes, 0);
space_info->reservation_progress++;
spin_unlock(&space_info->lock);
}
@@ -4105,7 +4110,7 @@ static u64 calc_global_metadata_size(struct btrfs_fs_info *fs_info)
num_bytes += div64_u64(data_used + meta_used, 50);
if (num_bytes * 3 > meta_used)
- num_bytes = div64_u64(meta_used, 3);
+ num_bytes = div64_u64(meta_used, 3) * 2;
return ALIGN(num_bytes, fs_info->extent_root->leafsize << 10);
}
@@ -4132,14 +4137,14 @@ static void update_global_block_rsv(struct btrfs_fs_info *fs_info)
block_rsv->reserved += num_bytes;
sinfo->bytes_may_use += num_bytes;
trace_btrfs_space_reservation(fs_info, "space_info",
- (u64)sinfo, num_bytes, 1);
+ (u64)(unsigned long)sinfo, num_bytes, 1);
}
if (block_rsv->reserved >= block_rsv->size) {
num_bytes = block_rsv->reserved - block_rsv->size;
sinfo->bytes_may_use -= num_bytes;
trace_btrfs_space_reservation(fs_info, "space_info",
- (u64)sinfo, num_bytes, 0);
+ (u64)(unsigned long)sinfo, num_bytes, 0);
sinfo->reservation_progress++;
block_rsv->reserved = block_rsv->size;
block_rsv->full = 1;
@@ -4192,7 +4197,8 @@ void btrfs_trans_release_metadata(struct btrfs_trans_handle *trans,
if (!trans->bytes_reserved)
return;
- trace_btrfs_space_reservation(root->fs_info, "transaction", (u64)trans,
+ trace_btrfs_space_reservation(root->fs_info, "transaction",
+ (u64)(unsigned long)trans,
trans->bytes_reserved, 0);
btrfs_block_rsv_release(root, trans->block_rsv, trans->bytes_reserved);
trans->bytes_reserved = 0;
@@ -4710,9 +4716,9 @@ static int btrfs_update_reserved_bytes(struct btrfs_block_group_cache *cache,
space_info->bytes_reserved += num_bytes;
if (reserve == RESERVE_ALLOC) {
trace_btrfs_space_reservation(cache->fs_info,
- "space_info",
- (u64)space_info,
- num_bytes, 0);
+ "space_info",
+ (u64)(unsigned long)space_info,
+ num_bytes, 0);
space_info->bytes_may_use -= num_bytes;
}
}
@@ -7886,9 +7892,16 @@ int btrfs_trim_fs(struct btrfs_root *root, struct fstrim_range *range)
u64 start;
u64 end;
u64 trimmed = 0;
+ u64 total_bytes = btrfs_super_total_bytes(fs_info->super_copy);
int ret = 0;
- cache = btrfs_lookup_block_group(fs_info, range->start);
+ /*
+ * try to trim all FS space, our block group may start from non-zero.
+ */
+ if (range->len == total_bytes)
+ cache = btrfs_lookup_first_block_group(fs_info, range->start);
+ else
+ cache = btrfs_lookup_block_group(fs_info, range->start);
while (cache) {
if (cache->key.objectid >= (range->start + range->len)) {
diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c
index fcf77e1..a55fbe6 100644
--- a/fs/btrfs/extent_io.c
+++ b/fs/btrfs/extent_io.c
@@ -513,6 +513,15 @@ hit_next:
WARN_ON(state->end < start);
last_end = state->end;
+ if (state->end < end && !need_resched())
+ next_node = rb_next(&state->rb_node);
+ else
+ next_node = NULL;
+
+ /* the state doesn't have the wanted bits, go ahead */
+ if (!(state->state & bits))
+ goto next;
+
/*
* | ---- desired range ---- |
* | state | or
@@ -565,20 +574,15 @@ hit_next:
goto out;
}
- if (state->end < end && prealloc && !need_resched())
- next_node = rb_next(&state->rb_node);
- else
- next_node = NULL;
-
set |= clear_state_bit(tree, state, &bits, wake);
+next:
if (last_end == (u64)-1)
goto out;
start = last_end + 1;
if (start <= end && next_node) {
state = rb_entry(next_node, struct extent_state,
rb_node);
- if (state->start == start)
- goto hit_next;
+ goto hit_next;
}
goto search_again;
@@ -961,8 +965,6 @@ hit_next:
set_state_bits(tree, state, &bits);
clear_state_bit(tree, state, &clear_bits, 0);
-
- merge_state(tree, state);
if (last_end == (u64)-1)
goto out;
@@ -1007,7 +1009,6 @@ hit_next:
if (state->end <= end) {
set_state_bits(tree, state, &bits);
clear_state_bit(tree, state, &clear_bits, 0);
- merge_state(tree, state);
if (last_end == (u64)-1)
goto out;
start = last_end + 1;
@@ -1068,8 +1069,6 @@ hit_next:
set_state_bits(tree, prealloc, &bits);
clear_state_bit(tree, prealloc, &clear_bits, 0);
-
- merge_state(tree, prealloc);
prealloc = NULL;
goto out;
}
@@ -2154,13 +2153,46 @@ static int bio_readpage_error(struct bio *failed_bio, struct page *page,
"this_mirror=%d, num_copies=%d, in_validation=%d\n", read_mode,
failrec->this_mirror, num_copies, failrec->in_validation);
- tree->ops->submit_bio_hook(inode, read_mode, bio, failrec->this_mirror,
- failrec->bio_flags, 0);
- return 0;
+ ret = tree->ops->submit_bio_hook(inode, read_mode, bio,
+ failrec->this_mirror,
+ failrec->bio_flags, 0);
+ return ret;
}
/* lots and lots of room for performance fixes in the end_bio funcs */
+int end_extent_writepage(struct page *page, int err, u64 start, u64 end)
+{
+ int uptodate = (err == 0);
+ struct extent_io_tree *tree;
+ int ret;
+
+ tree = &BTRFS_I(page->mapping->host)->io_tree;
+
+ if (tree->ops && tree->ops->writepage_end_io_hook) {
+ ret = tree->ops->writepage_end_io_hook(page, start,
+ end, NULL, uptodate);
+ if (ret)
+ uptodate = 0;
+ }
+
+ if (!uptodate && tree->ops &&
+ tree->ops->writepage_io_failed_hook) {
+ ret = tree->ops->writepage_io_failed_hook(NULL, page,
+ start, end, NULL);
+ /* Writeback already completed */
+ if (ret == 0)
+ return 1;
+ }
+
+ if (!uptodate) {
+ clear_extent_uptodate(tree, start, end, NULL, GFP_NOFS);
+ ClearPageUptodate(page);
+ SetPageError(page);
+ }
+ return 0;
+}
+
/*
* after a writepage IO is done, we need to:
* clear the uptodate bits on error
@@ -2172,13 +2204,11 @@ static int bio_readpage_error(struct bio *failed_bio, struct page *page,
*/
static void end_bio_extent_writepage(struct bio *bio, int err)
{
- int uptodate = err == 0;
struct bio_vec *bvec = bio->bi_io_vec + bio->bi_vcnt - 1;
struct extent_io_tree *tree;
u64 start;
u64 end;
int whole_page;
- int ret;
do {
struct page *page = bvec->bv_page;
@@ -2195,28 +2225,9 @@ static void end_bio_extent_writepage(struct bio *bio, int err)
if (--bvec >= bio->bi_io_vec)
prefetchw(&bvec->bv_page->flags);
- if (tree->ops && tree->ops->writepage_end_io_hook) {
- ret = tree->ops->writepage_end_io_hook(page, start,
- end, NULL, uptodate);
- if (ret)
- uptodate = 0;
- }
-
- if (!uptodate && tree->ops &&
- tree->ops->writepage_io_failed_hook) {
- ret = tree->ops->writepage_io_failed_hook(bio, page,
- start, end, NULL);
- if (ret == 0) {
- uptodate = (err == 0);
- continue;
- }
- }
- if (!uptodate) {
- clear_extent_uptodate(tree, start, end, NULL, GFP_NOFS);
- ClearPageUptodate(page);
- SetPageError(page);
- }
+ if (end_extent_writepage(page, err, start, end))
+ continue;
if (whole_page)
end_page_writeback(page);
@@ -2779,9 +2790,12 @@ static int __extent_writepage(struct page *page, struct writeback_control *wbc,
delalloc_start = delalloc_end + 1;
continue;
}
- tree->ops->fill_delalloc(inode, page, delalloc_start,
- delalloc_end, &page_started,
- &nr_written);
+ ret = tree->ops->fill_delalloc(inode, page,
+ delalloc_start,
+ delalloc_end,
+ &page_started,
+ &nr_written);
+ BUG_ON(ret);
/*
* delalloc_end is already one less than the total
* length, so we don't subtract one from
@@ -2818,8 +2832,12 @@ static int __extent_writepage(struct page *page, struct writeback_control *wbc,
if (tree->ops && tree->ops->writepage_start_hook) {
ret = tree->ops->writepage_start_hook(page, start,
page_end);
- if (ret == -EAGAIN) {
- redirty_page_for_writepage(wbc, page);
+ if (ret) {
+ /* Fixup worker will requeue */
+ if (ret == -EBUSY)
+ wbc->pages_skipped++;
+ else
+ redirty_page_for_writepage(wbc, page);
update_nr_written(page, wbc, nr_written);
unlock_page(page);
ret = 0;
@@ -3289,7 +3307,7 @@ int try_release_extent_mapping(struct extent_map_tree *map,
len = end - start + 1;
write_lock(&map->lock);
em = lookup_extent_mapping(map, start, len);
- if (IS_ERR_OR_NULL(em)) {
+ if (!em) {
write_unlock(&map->lock);
break;
}
@@ -3853,10 +3871,9 @@ int clear_extent_buffer_uptodate(struct extent_io_tree *tree,
num_pages = num_extent_pages(eb->start, eb->len);
clear_bit(EXTENT_BUFFER_UPTODATE, &eb->bflags);
- if (eb_straddles_pages(eb)) {
- clear_extent_uptodate(tree, eb->start, eb->start + eb->len - 1,
- cached_state, GFP_NOFS);
- }
+ clear_extent_uptodate(tree, eb->start, eb->start + eb->len - 1,
+ cached_state, GFP_NOFS);
+
for (i = 0; i < num_pages; i++) {
page = extent_buffer_page(eb, i);
if (page)
diff --git a/fs/btrfs/extent_io.h b/fs/btrfs/extent_io.h
index bc6a042cb..cecc351 100644
--- a/fs/btrfs/extent_io.h
+++ b/fs/btrfs/extent_io.h
@@ -319,4 +319,5 @@ struct btrfs_mapping_tree;
int repair_io_failure(struct btrfs_mapping_tree *map_tree, u64 start,
u64 length, u64 logical, struct page *page,
int mirror_num);
+int end_extent_writepage(struct page *page, int err, u64 start, u64 end);
#endif
diff --git a/fs/btrfs/extent_map.h b/fs/btrfs/extent_map.h
index 33a7890..1195f09 100644
--- a/fs/btrfs/extent_map.h
+++ b/fs/btrfs/extent_map.h
@@ -26,8 +26,8 @@ struct extent_map {
unsigned long flags;
struct block_device *bdev;
atomic_t refs;
- unsigned int in_tree:1;
- unsigned int compress_type:4;
+ unsigned int in_tree;
+ unsigned int compress_type;
};
struct extent_map_tree {
diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c
index 859ba2d..e8d06b6 100644
--- a/fs/btrfs/file.c
+++ b/fs/btrfs/file.c
@@ -1605,6 +1605,14 @@ static long btrfs_fallocate(struct file *file, int mode,
return -EOPNOTSUPP;
/*
+ * Make sure we have enough space before we do the
+ * allocation.
+ */
+ ret = btrfs_check_data_free_space(inode, len);
+ if (ret)
+ return ret;
+
+ /*
* wait for ordered IO before we have any locks. We'll loop again
* below with the locks held.
*/
@@ -1667,27 +1675,12 @@ static long btrfs_fallocate(struct file *file, int mode,
if (em->block_start == EXTENT_MAP_HOLE ||
(cur_offset >= inode->i_size &&
!test_bit(EXTENT_FLAG_PREALLOC, &em->flags))) {
-
- /*
- * Make sure we have enough space before we do the
- * allocation.
- */
- ret = btrfs_check_data_free_space(inode, last_byte -
- cur_offset);
- if (ret) {
- free_extent_map(em);
- break;
- }
-
ret = btrfs_prealloc_file_range(inode, mode, cur_offset,
last_byte - cur_offset,
1 << inode->i_blkbits,
offset + len,
&alloc_hint);
- /* Let go of our reservation. */
- btrfs_free_reserved_data_space(inode, last_byte -
- cur_offset);
if (ret < 0) {
free_extent_map(em);
break;
@@ -1715,6 +1708,8 @@ static long btrfs_fallocate(struct file *file, int mode,
&cached_state, GFP_NOFS);
out:
mutex_unlock(&inode->i_mutex);
+ /* Let go of our reservation. */
+ btrfs_free_reserved_data_space(inode, len);
return ret;
}
@@ -1761,7 +1756,7 @@ static int find_desired_extent(struct inode *inode, loff_t *offset, int origin)
start - root->sectorsize,
root->sectorsize, 0);
if (IS_ERR(em)) {
- ret = -ENXIO;
+ ret = PTR_ERR(em);
goto out;
}
last_end = em->start + em->len;
@@ -1773,7 +1768,7 @@ static int find_desired_extent(struct inode *inode, loff_t *offset, int origin)
while (1) {
em = btrfs_get_extent_fiemap(inode, NULL, 0, start, len, 0);
if (IS_ERR(em)) {
- ret = -ENXIO;
+ ret = PTR_ERR(em);
break;
}
diff --git a/fs/btrfs/free-space-cache.c b/fs/btrfs/free-space-cache.c
index c2f2059..710ea38 100644
--- a/fs/btrfs/free-space-cache.c
+++ b/fs/btrfs/free-space-cache.c
@@ -777,6 +777,7 @@ int load_free_space_cache(struct btrfs_fs_info *fs_info,
spin_lock(&block_group->lock);
if (block_group->disk_cache_state != BTRFS_DC_WRITTEN) {
spin_unlock(&block_group->lock);
+ btrfs_free_path(path);
goto out;
}
spin_unlock(&block_group->lock);
diff --git a/fs/btrfs/inode-map.c b/fs/btrfs/inode-map.c
index 213ffa8..ee15d88 100644
--- a/fs/btrfs/inode-map.c
+++ b/fs/btrfs/inode-map.c
@@ -438,7 +438,8 @@ int btrfs_save_ino_cache(struct btrfs_root *root,
trans->bytes_reserved);
if (ret)
goto out;
- trace_btrfs_space_reservation(root->fs_info, "ino_cache", (u64)trans,
+ trace_btrfs_space_reservation(root->fs_info, "ino_cache",
+ (u64)(unsigned long)trans,
trans->bytes_reserved, 1);
again:
inode = lookup_free_ino_inode(root, path);
@@ -500,7 +501,8 @@ again:
out_put:
iput(inode);
out_release:
- trace_btrfs_space_reservation(root->fs_info, "ino_cache", (u64)trans,
+ trace_btrfs_space_reservation(root->fs_info, "ino_cache",
+ (u64)(unsigned long)trans,
trans->bytes_reserved, 0);
btrfs_block_rsv_release(root, trans->block_rsv, trans->bytes_reserved);
out:
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 32214fe..892b347 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -1555,6 +1555,7 @@ static void btrfs_writepage_fixup_worker(struct btrfs_work *work)
struct inode *inode;
u64 page_start;
u64 page_end;
+ int ret;
fixup = container_of(work, struct btrfs_writepage_fixup, work);
page = fixup->page;
@@ -1582,12 +1583,21 @@ again:
page_end, &cached_state, GFP_NOFS);
unlock_page(page);
btrfs_start_ordered_extent(inode, ordered, 1);
+ btrfs_put_ordered_extent(ordered);
goto again;
}
- BUG();
+ ret = btrfs_delalloc_reserve_space(inode, PAGE_CACHE_SIZE);
+ if (ret) {
+ mapping_set_error(page->mapping, ret);
+ end_extent_writepage(page, ret, page_start, page_end);
+ ClearPageChecked(page);
+ goto out;
+ }
+
btrfs_set_extent_delalloc(inode, page_start, page_end, &cached_state);
ClearPageChecked(page);
+ set_page_dirty(page);
out:
unlock_extent_cached(&BTRFS_I(inode)->io_tree, page_start, page_end,
&cached_state, GFP_NOFS);
@@ -1630,7 +1640,7 @@ static int btrfs_writepage_start_hook(struct page *page, u64 start, u64 end)
fixup->work.func = btrfs_writepage_fixup_worker;
fixup->page = page;
btrfs_queue_worker(&root->fs_info->fixup_workers, &fixup->work);
- return -EAGAIN;
+ return -EBUSY;
}
static int insert_reserved_file_extent(struct btrfs_trans_handle *trans,
@@ -4575,7 +4585,8 @@ int btrfs_add_link(struct btrfs_trans_handle *trans,
ret = btrfs_insert_dir_item(trans, root, name, name_len,
parent_inode, &key,
btrfs_inode_type(inode), index);
- BUG_ON(ret);
+ if (ret)
+ goto fail_dir_item;
btrfs_i_size_write(parent_inode, parent_inode->i_size +
name_len * 2);
@@ -4583,6 +4594,23 @@ int btrfs_add_link(struct btrfs_trans_handle *trans,
ret = btrfs_update_inode(trans, root, parent_inode);
}
return ret;
+
+fail_dir_item:
+ if (unlikely(ino == BTRFS_FIRST_FREE_OBJECTID)) {
+ u64 local_index;
+ int err;
+ err = btrfs_del_root_ref(trans, root->fs_info->tree_root,
+ key.objectid, root->root_key.objectid,
+ parent_ino, &local_index, name, name_len);
+
+ } else if (add_backref) {
+ u64 local_index;
+ int err;
+
+ err = btrfs_del_inode_ref(trans, root, name, name_len,
+ ino, parent_ino, &local_index);
+ }
+ return ret;
}
static int btrfs_add_nondir(struct btrfs_trans_handle *trans,
@@ -6696,8 +6724,10 @@ int btrfs_create_subvol_root(struct btrfs_trans_handle *trans,
int err;
u64 index = 0;
- inode = btrfs_new_inode(trans, new_root, NULL, "..", 2, new_dirid,
- new_dirid, S_IFDIR | 0700, &index);
+ inode = btrfs_new_inode(trans, new_root, NULL, "..", 2,
+ new_dirid, new_dirid,
+ S_IFDIR | (~current_umask() & S_IRWXUGO),
+ &index);
if (IS_ERR(inode))
return PTR_ERR(inode);
inode->i_op = &btrfs_dir_inode_operations;
diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index 03bb62a..d8b5471 100644
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -861,6 +861,7 @@ static int cluster_pages_for_defrag(struct inode *inode,
int i_done;
struct btrfs_ordered_extent *ordered;
struct extent_state *cached_state = NULL;
+ struct extent_io_tree *tree;
gfp_t mask = btrfs_alloc_write_mask(inode->i_mapping);
if (isize == 0)
@@ -871,18 +872,34 @@ static int cluster_pages_for_defrag(struct inode *inode,
num_pages << PAGE_CACHE_SHIFT);
if (ret)
return ret;
-again:
- ret = 0;
i_done = 0;
+ tree = &BTRFS_I(inode)->io_tree;
/* step one, lock all the pages */
for (i = 0; i < num_pages; i++) {
struct page *page;
+again:
page = find_or_create_page(inode->i_mapping,
- start_index + i, mask);
+ start_index + i, mask);
if (!page)
break;
+ page_start = page_offset(page);
+ page_end = page_start + PAGE_CACHE_SIZE - 1;
+ while (1) {
+ lock_extent(tree, page_start, page_end, GFP_NOFS);
+ ordered = btrfs_lookup_ordered_extent(inode,
+ page_start);
+ unlock_extent(tree, page_start, page_end, GFP_NOFS);
+ if (!ordered)
+ break;
+
+ unlock_page(page);
+ btrfs_start_ordered_extent(inode, ordered, 1);
+ btrfs_put_ordered_extent(ordered);
+ lock_page(page);
+ }
+
if (!PageUptodate(page)) {
btrfs_readpage(NULL, page);
lock_page(page);
@@ -893,15 +910,22 @@ again:
break;
}
}
+
isize = i_size_read(inode);
file_end = (isize - 1) >> PAGE_CACHE_SHIFT;
- if (!isize || page->index > file_end ||
- page->mapping != inode->i_mapping) {
+ if (!isize || page->index > file_end) {
/* whoops, we blew past eof, skip this page */
unlock_page(page);
page_cache_release(page);
break;
}
+
+ if (page->mapping != inode->i_mapping) {
+ unlock_page(page);
+ page_cache_release(page);
+ goto again;
+ }
+
pages[i] = page;
i_done++;
}
@@ -924,25 +948,6 @@ again:
lock_extent_bits(&BTRFS_I(inode)->io_tree,
page_start, page_end - 1, 0, &cached_state,
GFP_NOFS);
- ordered = btrfs_lookup_first_ordered_extent(inode, page_end - 1);
- if (ordered &&
- ordered->file_offset + ordered->len > page_start &&
- ordered->file_offset < page_end) {
- btrfs_put_ordered_extent(ordered);
- unlock_extent_cached(&BTRFS_I(inode)->io_tree,
- page_start, page_end - 1,
- &cached_state, GFP_NOFS);
- for (i = 0; i < i_done; i++) {
- unlock_page(pages[i]);
- page_cache_release(pages[i]);
- }
- btrfs_wait_ordered_range(inode, page_start,
- page_end - page_start);
- goto again;
- }
- if (ordered)
- btrfs_put_ordered_extent(ordered);
-
clear_extent_bit(&BTRFS_I(inode)->io_tree, page_start,
page_end - 1, EXTENT_DIRTY | EXTENT_DELALLOC |
EXTENT_DO_ACCOUNTING, 0, 0, &cached_state,
@@ -1327,6 +1332,12 @@ static noinline int btrfs_ioctl_snap_create_transid(struct file *file,
goto out;
}
+ if (name[0] == '.' &&
+ (namelen == 1 || (name[1] == '.' && namelen == 2))) {
+ ret = -EEXIST;
+ goto out;
+ }
+
if (subvol) {
ret = btrfs_mksubvol(&file->f_path, name, namelen,
NULL, transid, readonly);
diff --git a/fs/btrfs/scrub.c b/fs/btrfs/scrub.c
index 9770cc5..abc0fbf 100644
--- a/fs/btrfs/scrub.c
+++ b/fs/btrfs/scrub.c
@@ -1367,7 +1367,8 @@ out:
}
static noinline_for_stack int scrub_chunk(struct scrub_dev *sdev,
- u64 chunk_tree, u64 chunk_objectid, u64 chunk_offset, u64 length)
+ u64 chunk_tree, u64 chunk_objectid, u64 chunk_offset, u64 length,
+ u64 dev_offset)
{
struct btrfs_mapping_tree *map_tree =
&sdev->dev->dev_root->fs_info->mapping_tree;
@@ -1391,7 +1392,8 @@ static noinline_for_stack int scrub_chunk(struct scrub_dev *sdev,
goto out;
for (i = 0; i < map->num_stripes; ++i) {
- if (map->stripes[i].dev == sdev->dev) {
+ if (map->stripes[i].dev == sdev->dev &&
+ map->stripes[i].physical == dev_offset) {
ret = scrub_stripe(sdev, map, i, chunk_offset, length);
if (ret)
goto out;
@@ -1487,7 +1489,7 @@ int scrub_enumerate_chunks(struct scrub_dev *sdev, u64 start, u64 end)
break;
}
ret = scrub_chunk(sdev, chunk_tree, chunk_objectid,
- chunk_offset, length);
+ chunk_offset, length, found_key.offset);
btrfs_put_block_group(cache);
if (ret)
break;
diff --git a/fs/btrfs/transaction.c b/fs/btrfs/transaction.c
index 287a672..04b77e3 100644
--- a/fs/btrfs/transaction.c
+++ b/fs/btrfs/transaction.c
@@ -327,7 +327,8 @@ again:
if (num_bytes) {
trace_btrfs_space_reservation(root->fs_info, "transaction",
- (u64)h, num_bytes, 1);
+ (u64)(unsigned long)h,
+ num_bytes, 1);
h->block_rsv = &root->fs_info->trans_block_rsv;
h->bytes_reserved = num_bytes;
}
@@ -915,7 +916,11 @@ static noinline int create_pending_snapshot(struct btrfs_trans_handle *trans,
dentry->d_name.name, dentry->d_name.len,
parent_inode, &key,
BTRFS_FT_DIR, index);
- BUG_ON(ret);
+ if (ret) {
+ pending->error = -EEXIST;
+ dput(parent);
+ goto fail;
+ }
btrfs_i_size_write(parent_inode, parent_inode->i_size +
dentry->d_name.len * 2);
@@ -993,12 +998,9 @@ static noinline int create_pending_snapshots(struct btrfs_trans_handle *trans,
{
struct btrfs_pending_snapshot *pending;
struct list_head *head = &trans->transaction->pending_snapshots;
- int ret;
- list_for_each_entry(pending, head, list) {
- ret = create_pending_snapshot(trans, fs_info, pending);
- BUG_ON(ret);
- }
+ list_for_each_entry(pending, head, list)
+ create_pending_snapshot(trans, fs_info, pending);
return 0;
}
diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index 0b4e2af..ef41f28 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -459,12 +459,23 @@ int btrfs_close_extra_devices(struct btrfs_fs_devices *fs_devices)
{
struct btrfs_device *device, *next;
+ struct block_device *latest_bdev = NULL;
+ u64 latest_devid = 0;
+ u64 latest_transid = 0;
+
mutex_lock(&uuid_mutex);
again:
/* This is the initialized path, it is safe to release the devices. */
list_for_each_entry_safe(device, next, &fs_devices->devices, dev_list) {
- if (device->in_fs_metadata)
+ if (device->in_fs_metadata) {
+ if (!latest_transid ||
+ device->generation > latest_transid) {
+ latest_devid = device->devid;
+ latest_transid = device->generation;
+ latest_bdev = device->bdev;
+ }
continue;
+ }
if (device->bdev) {
blkdev_put(device->bdev, device->mode);
@@ -487,6 +498,10 @@ again:
goto again;
}
+ fs_devices->latest_bdev = latest_bdev;
+ fs_devices->latest_devid = latest_devid;
+ fs_devices->latest_trans = latest_transid;
+
mutex_unlock(&uuid_mutex);
return 0;
}
@@ -1953,7 +1968,7 @@ static int btrfs_relocate_chunk(struct btrfs_root *root,
em = lookup_extent_mapping(em_tree, chunk_offset, 1);
read_unlock(&em_tree->lock);
- BUG_ON(em->start > chunk_offset ||
+ BUG_ON(!em || em->start > chunk_offset ||
em->start + em->len < chunk_offset);
map = (struct map_lookup *)em->bdev;
@@ -4356,6 +4371,20 @@ int btrfs_read_sys_array(struct btrfs_root *root)
return -ENOMEM;
btrfs_set_buffer_uptodate(sb);
btrfs_set_buffer_lockdep_class(root->root_key.objectid, sb, 0);
+ /*
+ * The sb extent buffer is artifical and just used to read the system array.
+ * btrfs_set_buffer_uptodate() call does not properly mark all it's
+ * pages up-to-date when the page is larger: extent does not cover the
+ * whole page and consequently check_page_uptodate does not find all
+ * the page's extents up-to-date (the hole beyond sb),
+ * write_extent_buffer then triggers a WARN_ON.
+ *
+ * Regular short extents go through mark_extent_buffer_dirty/writeback cycle,
+ * but sb spans only this function. Add an explicit SetPageUptodate call
+ * to silence the warning eg. on PowerPC 64.
+ */
+ if (PAGE_CACHE_SIZE > BTRFS_SUPER_INFO_SIZE)
+ SetPageUptodate(sb->first_page);
write_extent_buffer(sb, super_copy, 0, BTRFS_SUPER_INFO_SIZE);
array_size = btrfs_super_sys_array_size(super_copy);
diff --git a/fs/cifs/Kconfig b/fs/cifs/Kconfig
index 0554b00..2b243af 100644
--- a/fs/cifs/Kconfig
+++ b/fs/cifs/Kconfig
@@ -139,7 +139,7 @@ config CIFS_DFS_UPCALL
points. If unsure, say N.
config CIFS_FSCACHE
- bool "Provide CIFS client caching support (EXPERIMENTAL)"
+ bool "Provide CIFS client caching support"
depends on CIFS=m && FSCACHE || CIFS=y && FSCACHE=y
help
Makes CIFS FS-Cache capable. Say Y here if you want your CIFS data
@@ -147,7 +147,7 @@ config CIFS_FSCACHE
manager. If unsure, say N.
config CIFS_ACL
- bool "Provide CIFS ACL support (EXPERIMENTAL)"
+ bool "Provide CIFS ACL support"
depends on CIFS_XATTR && KEYS
help
Allows to fetch CIFS/NTFS ACL from the server. The DACL blob
diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index 986709a..602f77c 100644
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -773,10 +773,11 @@ standard_receive3(struct TCP_Server_Info *server, struct mid_q_entry *mid)
cifs_dump_mem("Bad SMB: ", buf,
min_t(unsigned int, server->total_read, 48));
- if (mid)
- handle_mid(mid, server, smb_buffer, length);
+ if (!mid)
+ return length;
- return length;
+ handle_mid(mid, server, smb_buffer, length);
+ return 0;
}
static int
@@ -2125,7 +2126,7 @@ cifs_set_cifscreds(struct smb_vol *vol, struct cifs_ses *ses)
down_read(&key->sem);
upayload = key->payload.data;
if (IS_ERR_OR_NULL(upayload)) {
- rc = PTR_ERR(key);
+ rc = upayload ? PTR_ERR(upayload) : -EINVAL;
goto out_key_put;
}
@@ -2142,14 +2143,14 @@ cifs_set_cifscreds(struct smb_vol *vol, struct cifs_ses *ses)
len = delim - payload;
if (len > MAX_USERNAME_SIZE || len <= 0) {
- cFYI(1, "Bad value from username search (len=%ld)", len);
+ cFYI(1, "Bad value from username search (len=%zd)", len);
rc = -EINVAL;
goto out_key_put;
}
vol->username = kstrndup(payload, len, GFP_KERNEL);
if (!vol->username) {
- cFYI(1, "Unable to allocate %ld bytes for username", len);
+ cFYI(1, "Unable to allocate %zd bytes for username", len);
rc = -ENOMEM;
goto out_key_put;
}
@@ -2157,7 +2158,7 @@ cifs_set_cifscreds(struct smb_vol *vol, struct cifs_ses *ses)
len = key->datalen - (len + 1);
if (len > MAX_PASSWORD_SIZE || len <= 0) {
- cFYI(1, "Bad len for password search (len=%ld)", len);
+ cFYI(1, "Bad len for password search (len=%zd)", len);
rc = -EINVAL;
kfree(vol->username);
vol->username = NULL;
@@ -2167,7 +2168,7 @@ cifs_set_cifscreds(struct smb_vol *vol, struct cifs_ses *ses)
++delim;
vol->password = kstrndup(delim, len, GFP_KERNEL);
if (!vol->password) {
- cFYI(1, "Unable to allocate %ld bytes for password", len);
+ cFYI(1, "Unable to allocate %zd bytes for password", len);
rc = -ENOMEM;
kfree(vol->username);
vol->username = NULL;
@@ -3857,10 +3858,8 @@ cifs_construct_tcon(struct cifs_sb_info *cifs_sb, uid_t fsuid)
struct smb_vol *vol_info;
vol_info = kzalloc(sizeof(*vol_info), GFP_KERNEL);
- if (vol_info == NULL) {
- tcon = ERR_PTR(-ENOMEM);
- goto out;
- }
+ if (vol_info == NULL)
+ return ERR_PTR(-ENOMEM);
vol_info->local_nls = cifs_sb->local_nls;
vol_info->linux_uid = fsuid;
diff --git a/fs/cifs/dir.c b/fs/cifs/dir.c
index df8fecb..63a196b 100644
--- a/fs/cifs/dir.c
+++ b/fs/cifs/dir.c
@@ -492,7 +492,7 @@ cifs_lookup(struct inode *parent_dir_inode, struct dentry *direntry,
{
int xid;
int rc = 0; /* to get around spurious gcc warning, set to zero here */
- __u32 oplock = 0;
+ __u32 oplock = enable_oplocks ? REQ_OPLOCK : 0;
__u16 fileHandle = 0;
bool posix_open = false;
struct cifs_sb_info *cifs_sb;
diff --git a/fs/cifs/sess.c b/fs/cifs/sess.c
index d85efad..551d0c2 100644
--- a/fs/cifs/sess.c
+++ b/fs/cifs/sess.c
@@ -246,16 +246,15 @@ static void ascii_ssetup_strings(char **pbcc_area, struct cifs_ses *ses,
/* copy user */
/* BB what about null user mounts - check that we do this BB */
/* copy user */
- if (ses->user_name != NULL)
+ if (ses->user_name != NULL) {
strncpy(bcc_ptr, ses->user_name, MAX_USERNAME_SIZE);
+ bcc_ptr += strnlen(ses->user_name, MAX_USERNAME_SIZE);
+ }
/* else null user mount */
-
- bcc_ptr += strnlen(ses->user_name, MAX_USERNAME_SIZE);
*bcc_ptr = 0;
bcc_ptr++; /* account for null termination */
/* copy domain */
-
if (ses->domainName != NULL) {
strncpy(bcc_ptr, ses->domainName, 256);
bcc_ptr += strnlen(ses->domainName, 256);
@@ -395,6 +394,10 @@ static int decode_ntlmssp_challenge(char *bcc_ptr, int blob_len,
ses->ntlmssp->server_flags = le32_to_cpu(pblob->NegotiateFlags);
tioffset = le32_to_cpu(pblob->TargetInfoArray.BufferOffset);
tilen = le16_to_cpu(pblob->TargetInfoArray.Length);
+ if (tioffset > blob_len || tioffset + tilen > blob_len) {
+ cERROR(1, "tioffset + tilen too high %u + %u", tioffset, tilen);
+ return -EINVAL;
+ }
if (tilen) {
ses->auth_key.response = kmalloc(tilen, GFP_KERNEL);
if (!ses->auth_key.response) {
diff --git a/fs/compat.c b/fs/compat.c
index fa9d721..07880ba 100644
--- a/fs/compat.c
+++ b/fs/compat.c
@@ -131,41 +131,35 @@ asmlinkage long compat_sys_utimes(const char __user *filename, struct compat_tim
static int cp_compat_stat(struct kstat *stat, struct compat_stat __user *ubuf)
{
- compat_ino_t ino = stat->ino;
- typeof(ubuf->st_uid) uid = 0;
- typeof(ubuf->st_gid) gid = 0;
- int err;
+ struct compat_stat tmp;
- SET_UID(uid, stat->uid);
- SET_GID(gid, stat->gid);
+ if (!old_valid_dev(stat->dev) || !old_valid_dev(stat->rdev))
+ return -EOVERFLOW;
- if ((u64) stat->size > MAX_NON_LFS ||
- !old_valid_dev(stat->dev) ||
- !old_valid_dev(stat->rdev))
+ memset(&tmp, 0, sizeof(tmp));
+ tmp.st_dev = old_encode_dev(stat->dev);
+ tmp.st_ino = stat->ino;
+ if (sizeof(tmp.st_ino) < sizeof(stat->ino) && tmp.st_ino != stat->ino)
return -EOVERFLOW;
- if (sizeof(ino) < sizeof(stat->ino) && ino != stat->ino)
+ tmp.st_mode = stat->mode;
+ tmp.st_nlink = stat->nlink;
+ if (tmp.st_nlink != stat->nlink)
return -EOVERFLOW;
-
- if (clear_user(ubuf, sizeof(*ubuf)))
- return -EFAULT;
-
- err = __put_user(old_encode_dev(stat->dev), &ubuf->st_dev);
- err |= __put_user(ino, &ubuf->st_ino);
- err |= __put_user(stat->mode, &ubuf->st_mode);
- err |= __put_user(stat->nlink, &ubuf->st_nlink);
- err |= __put_user(uid, &ubuf->st_uid);
- err |= __put_user(gid, &ubuf->st_gid);
- err |= __put_user(old_encode_dev(stat->rdev), &ubuf->st_rdev);
- err |= __put_user(stat->size, &ubuf->st_size);
- err |= __put_user(stat->atime.tv_sec, &ubuf->st_atime);
- err |= __put_user(stat->atime.tv_nsec, &ubuf->st_atime_nsec);
- err |= __put_user(stat->mtime.tv_sec, &ubuf->st_mtime);
- err |= __put_user(stat->mtime.tv_nsec, &ubuf->st_mtime_nsec);
- err |= __put_user(stat->ctime.tv_sec, &ubuf->st_ctime);
- err |= __put_user(stat->ctime.tv_nsec, &ubuf->st_ctime_nsec);
- err |= __put_user(stat->blksize, &ubuf->st_blksize);
- err |= __put_user(stat->blocks, &ubuf->st_blocks);
- return err;
+ SET_UID(tmp.st_uid, stat->uid);
+ SET_GID(tmp.st_gid, stat->gid);
+ tmp.st_rdev = old_encode_dev(stat->rdev);
+ if ((u64) stat->size > MAX_NON_LFS)
+ return -EOVERFLOW;
+ tmp.st_size = stat->size;
+ tmp.st_atime = stat->atime.tv_sec;
+ tmp.st_atime_nsec = stat->atime.tv_nsec;
+ tmp.st_mtime = stat->mtime.tv_sec;
+ tmp.st_mtime_nsec = stat->mtime.tv_nsec;
+ tmp.st_ctime = stat->ctime.tv_sec;
+ tmp.st_ctime_nsec = stat->ctime.tv_nsec;
+ tmp.st_blocks = stat->blocks;
+ tmp.st_blksize = stat->blksize;
+ return copy_to_user(ubuf, &tmp, sizeof(tmp)) ? -EFAULT : 0;
}
asmlinkage long compat_sys_newstat(const char __user * filename,
diff --git a/fs/dcache.c b/fs/dcache.c
index 16a53cc..fe19ac1 100644
--- a/fs/dcache.c
+++ b/fs/dcache.c
@@ -2968,7 +2968,7 @@ __setup("dhash_entries=", set_dhash_entries);
static void __init dcache_init_early(void)
{
- int loop;
+ unsigned int loop;
/* If hashes are distributed across NUMA nodes, defer
* hash allocation until vmalloc space is available.
@@ -2986,13 +2986,13 @@ static void __init dcache_init_early(void)
&d_hash_mask,
0);
- for (loop = 0; loop < (1 << d_hash_shift); loop++)
+ for (loop = 0; loop < (1U << d_hash_shift); loop++)
INIT_HLIST_BL_HEAD(dentry_hashtable + loop);
}
static void __init dcache_init(void)
{
- int loop;
+ unsigned int loop;
/*
* A constructor could be added for stable state like the lists,
@@ -3016,7 +3016,7 @@ static void __init dcache_init(void)
&d_hash_mask,
0);
- for (loop = 0; loop < (1 << d_hash_shift); loop++)
+ for (loop = 0; loop < (1U << d_hash_shift); loop++)
INIT_HLIST_BL_HEAD(dentry_hashtable + loop);
}
diff --git a/fs/direct-io.c b/fs/direct-io.c
index 4a588db..f4aadd1 100644
--- a/fs/direct-io.c
+++ b/fs/direct-io.c
@@ -173,7 +173,7 @@ void inode_dio_wait(struct inode *inode)
if (atomic_read(&inode->i_dio_count))
__inode_dio_wait(inode);
}
-EXPORT_SYMBOL_GPL(inode_dio_wait);
+EXPORT_SYMBOL(inode_dio_wait);
/*
* inode_dio_done - signal finish of a direct I/O requests
@@ -187,7 +187,7 @@ void inode_dio_done(struct inode *inode)
if (atomic_dec_and_test(&inode->i_dio_count))
wake_up_bit(&inode->i_state, __I_DIO_WAKEUP);
}
-EXPORT_SYMBOL_GPL(inode_dio_done);
+EXPORT_SYMBOL(inode_dio_done);
/*
* How many pages are in the queue?
diff --git a/fs/ecryptfs/crypto.c b/fs/ecryptfs/crypto.c
index 63ab245..ea99312 100644
--- a/fs/ecryptfs/crypto.c
+++ b/fs/ecryptfs/crypto.c
@@ -1990,6 +1990,17 @@ out:
return;
}
+static size_t ecryptfs_max_decoded_size(size_t encoded_size)
+{
+ /* Not exact; conservatively long. Every block of 4
+ * encoded characters decodes into a block of 3
+ * decoded characters. This segment of code provides
+ * the caller with the maximum amount of allocated
+ * space that @dst will need to point to in a
+ * subsequent call. */
+ return ((encoded_size + 1) * 3) / 4;
+}
+
/**
* ecryptfs_decode_from_filename
* @dst: If NULL, this function only sets @dst_size and returns. If
@@ -2008,13 +2019,7 @@ ecryptfs_decode_from_filename(unsigned char *dst, size_t *dst_size,
size_t dst_byte_offset = 0;
if (dst == NULL) {
- /* Not exact; conservatively long. Every block of 4
- * encoded characters decodes into a block of 3
- * decoded characters. This segment of code provides
- * the caller with the maximum amount of allocated
- * space that @dst will need to point to in a
- * subsequent call. */
- (*dst_size) = (((src_size + 1) * 3) / 4);
+ (*dst_size) = ecryptfs_max_decoded_size(src_size);
goto out;
}
while (src_byte_offset < src_size) {
@@ -2239,3 +2244,52 @@ out_free:
out:
return rc;
}
+
+#define ENC_NAME_MAX_BLOCKLEN_8_OR_16 143
+
+int ecryptfs_set_f_namelen(long *namelen, long lower_namelen,
+ struct ecryptfs_mount_crypt_stat *mount_crypt_stat)
+{
+ struct blkcipher_desc desc;
+ struct mutex *tfm_mutex;
+ size_t cipher_blocksize;
+ int rc;
+
+ if (!(mount_crypt_stat->flags & ECRYPTFS_GLOBAL_ENCRYPT_FILENAMES)) {
+ (*namelen) = lower_namelen;
+ return 0;
+ }
+
+ rc = ecryptfs_get_tfm_and_mutex_for_cipher_name(&desc.tfm, &tfm_mutex,
+ mount_crypt_stat->global_default_fn_cipher_name);
+ if (unlikely(rc)) {
+ (*namelen) = 0;
+ return rc;
+ }
+
+ mutex_lock(tfm_mutex);
+ cipher_blocksize = crypto_blkcipher_blocksize(desc.tfm);
+ mutex_unlock(tfm_mutex);
+
+ /* Return an exact amount for the common cases */
+ if (lower_namelen == NAME_MAX
+ && (cipher_blocksize == 8 || cipher_blocksize == 16)) {
+ (*namelen) = ENC_NAME_MAX_BLOCKLEN_8_OR_16;
+ return 0;
+ }
+
+ /* Return a safe estimate for the uncommon cases */
+ (*namelen) = lower_namelen;
+ (*namelen) -= ECRYPTFS_FNEK_ENCRYPTED_FILENAME_PREFIX_SIZE;
+ /* Since this is the max decoded size, subtract 1 "decoded block" len */
+ (*namelen) = ecryptfs_max_decoded_size(*namelen) - 3;
+ (*namelen) -= ECRYPTFS_TAG_70_MAX_METADATA_SIZE;
+ (*namelen) -= ECRYPTFS_FILENAME_MIN_RANDOM_PREPEND_BYTES;
+ /* Worst case is that the filename is padded nearly a full block size */
+ (*namelen) -= cipher_blocksize - 1;
+
+ if ((*namelen) < 0)
+ (*namelen) = 0;
+
+ return 0;
+}
diff --git a/fs/ecryptfs/ecryptfs_kernel.h b/fs/ecryptfs/ecryptfs_kernel.h
index a2362df..867b64c 100644
--- a/fs/ecryptfs/ecryptfs_kernel.h
+++ b/fs/ecryptfs/ecryptfs_kernel.h
@@ -162,6 +162,10 @@ ecryptfs_get_key_payload_data(struct key *key)
#define ECRYPTFS_NON_NULL 0x42 /* A reasonable substitute for NULL */
#define MD5_DIGEST_SIZE 16
#define ECRYPTFS_TAG_70_DIGEST_SIZE MD5_DIGEST_SIZE
+#define ECRYPTFS_TAG_70_MIN_METADATA_SIZE (1 + ECRYPTFS_MIN_PKT_LEN_SIZE \
+ + ECRYPTFS_SIG_SIZE + 1 + 1)
+#define ECRYPTFS_TAG_70_MAX_METADATA_SIZE (1 + ECRYPTFS_MAX_PKT_LEN_SIZE \
+ + ECRYPTFS_SIG_SIZE + 1 + 1)
#define ECRYPTFS_FEK_ENCRYPTED_FILENAME_PREFIX "ECRYPTFS_FEK_ENCRYPTED."
#define ECRYPTFS_FEK_ENCRYPTED_FILENAME_PREFIX_SIZE 23
#define ECRYPTFS_FNEK_ENCRYPTED_FILENAME_PREFIX "ECRYPTFS_FNEK_ENCRYPTED."
@@ -701,6 +705,8 @@ ecryptfs_parse_tag_70_packet(char **filename, size_t *filename_size,
size_t *packet_size,
struct ecryptfs_mount_crypt_stat *mount_crypt_stat,
char *data, size_t max_packet_size);
+int ecryptfs_set_f_namelen(long *namelen, long lower_namelen,
+ struct ecryptfs_mount_crypt_stat *mount_crypt_stat);
int ecryptfs_derive_iv(char *iv, struct ecryptfs_crypt_stat *crypt_stat,
loff_t offset);
diff --git a/fs/ecryptfs/inode.c b/fs/ecryptfs/inode.c
index 19892d7..ab35b11 100644
--- a/fs/ecryptfs/inode.c
+++ b/fs/ecryptfs/inode.c
@@ -1085,6 +1085,8 @@ ecryptfs_setxattr(struct dentry *dentry, const char *name, const void *value,
}
rc = vfs_setxattr(lower_dentry, name, value, size, flags);
+ if (!rc)
+ fsstack_copy_attr_all(dentry->d_inode, lower_dentry->d_inode);
out:
return rc;
}
diff --git a/fs/ecryptfs/keystore.c b/fs/ecryptfs/keystore.c
index 8e3b943..2333203 100644
--- a/fs/ecryptfs/keystore.c
+++ b/fs/ecryptfs/keystore.c
@@ -679,10 +679,7 @@ ecryptfs_write_tag_70_packet(char *dest, size_t *remaining_bytes,
* Octets N3-N4: Block-aligned encrypted filename
* - Consists of a minimum number of random characters, a \0
* separator, and then the filename */
- s->max_packet_size = (1 /* Tag 70 identifier */
- + 3 /* Max Tag 70 packet size */
- + ECRYPTFS_SIG_SIZE /* FNEK sig */
- + 1 /* Cipher identifier */
+ s->max_packet_size = (ECRYPTFS_TAG_70_MAX_METADATA_SIZE
+ s->block_aligned_filename_size);
if (dest == NULL) {
(*packet_size) = s->max_packet_size;
@@ -934,10 +931,10 @@ ecryptfs_parse_tag_70_packet(char **filename, size_t *filename_size,
goto out;
}
s->desc.flags = CRYPTO_TFM_REQ_MAY_SLEEP;
- if (max_packet_size < (1 + 1 + ECRYPTFS_SIG_SIZE + 1 + 1)) {
+ if (max_packet_size < ECRYPTFS_TAG_70_MIN_METADATA_SIZE) {
printk(KERN_WARNING "%s: max_packet_size is [%zd]; it must be "
"at least [%d]\n", __func__, max_packet_size,
- (1 + 1 + ECRYPTFS_SIG_SIZE + 1 + 1));
+ ECRYPTFS_TAG_70_MIN_METADATA_SIZE);
rc = -EINVAL;
goto out;
}
diff --git a/fs/ecryptfs/mmap.c b/fs/ecryptfs/mmap.c
index 10ec695..a46b3a8 100644
--- a/fs/ecryptfs/mmap.c
+++ b/fs/ecryptfs/mmap.c
@@ -150,7 +150,7 @@ ecryptfs_copy_up_encrypted_with_header(struct page *page,
/* This is a header extent */
char *page_virt;
- page_virt = kmap_atomic(page, KM_USER0);
+ page_virt = kmap_atomic(page);
memset(page_virt, 0, PAGE_CACHE_SIZE);
/* TODO: Support more than one header extent */
if (view_extent_num == 0) {
@@ -163,7 +163,7 @@ ecryptfs_copy_up_encrypted_with_header(struct page *page,
crypt_stat,
&written);
}
- kunmap_atomic(page_virt, KM_USER0);
+ kunmap_atomic(page_virt);
flush_dcache_page(page);
if (rc) {
printk(KERN_ERR "%s: Error reading xattr "
diff --git a/fs/ecryptfs/read_write.c b/fs/ecryptfs/read_write.c
index 5c0106f..b2a34a1 100644
--- a/fs/ecryptfs/read_write.c
+++ b/fs/ecryptfs/read_write.c
@@ -156,7 +156,7 @@ int ecryptfs_write(struct inode *ecryptfs_inode, char *data, loff_t offset,
ecryptfs_page_idx, rc);
goto out;
}
- ecryptfs_page_virt = kmap_atomic(ecryptfs_page, KM_USER0);
+ ecryptfs_page_virt = kmap_atomic(ecryptfs_page);
/*
* pos: where we're now writing, offset: where the request was
@@ -179,7 +179,7 @@ int ecryptfs_write(struct inode *ecryptfs_inode, char *data, loff_t offset,
(data + data_offset), num_bytes);
data_offset += num_bytes;
}
- kunmap_atomic(ecryptfs_page_virt, KM_USER0);
+ kunmap_atomic(ecryptfs_page_virt);
flush_dcache_page(ecryptfs_page);
SetPageUptodate(ecryptfs_page);
unlock_page(ecryptfs_page);
diff --git a/fs/ecryptfs/super.c b/fs/ecryptfs/super.c
index 9df7fd6..cf15282 100644
--- a/fs/ecryptfs/super.c
+++ b/fs/ecryptfs/super.c
@@ -30,6 +30,8 @@
#include <linux/seq_file.h>
#include <linux/file.h>
#include <linux/crypto.h>
+#include <linux/statfs.h>
+#include <linux/magic.h>
#include "ecryptfs_kernel.h"
struct kmem_cache *ecryptfs_inode_info_cache;
@@ -102,10 +104,20 @@ static void ecryptfs_destroy_inode(struct inode *inode)
static int ecryptfs_statfs(struct dentry *dentry, struct kstatfs *buf)
{
struct dentry *lower_dentry = ecryptfs_dentry_to_lower(dentry);
+ int rc;
if (!lower_dentry->d_sb->s_op->statfs)
return -ENOSYS;
- return lower_dentry->d_sb->s_op->statfs(lower_dentry, buf);
+
+ rc = lower_dentry->d_sb->s_op->statfs(lower_dentry, buf);
+ if (rc)
+ return rc;
+
+ buf->f_type = ECRYPTFS_SUPER_MAGIC;
+ rc = ecryptfs_set_f_namelen(&buf->f_namelen, buf->f_namelen,
+ &ecryptfs_superblock_to_private(dentry->d_sb)->mount_crypt_stat);
+
+ return rc;
}
/**
diff --git a/fs/eventpoll.c b/fs/eventpoll.c
index aabdfc3..ea54cde 100644
--- a/fs/eventpoll.c
+++ b/fs/eventpoll.c
@@ -320,6 +320,11 @@ static inline int ep_is_linked(struct list_head *p)
return !list_empty(p);
}
+static inline struct eppoll_entry *ep_pwq_from_wait(wait_queue_t *p)
+{
+ return container_of(p, struct eppoll_entry, wait);
+}
+
/* Get the "struct epitem" from a wait queue pointer */
static inline struct epitem *ep_item_from_wait(wait_queue_t *p)
{
@@ -467,6 +472,18 @@ static void ep_poll_safewake(wait_queue_head_t *wq)
put_cpu();
}
+static void ep_remove_wait_queue(struct eppoll_entry *pwq)
+{
+ wait_queue_head_t *whead;
+
+ rcu_read_lock();
+ /* If it is cleared by POLLFREE, it should be rcu-safe */
+ whead = rcu_dereference(pwq->whead);
+ if (whead)
+ remove_wait_queue(whead, &pwq->wait);
+ rcu_read_unlock();
+}
+
/*
* This function unregisters poll callbacks from the associated file
* descriptor. Must be called with "mtx" held (or "epmutex" if called from
@@ -481,7 +498,7 @@ static void ep_unregister_pollwait(struct eventpoll *ep, struct epitem *epi)
pwq = list_first_entry(lsthead, struct eppoll_entry, llink);
list_del(&pwq->llink);
- remove_wait_queue(pwq->whead, &pwq->wait);
+ ep_remove_wait_queue(pwq);
kmem_cache_free(pwq_cache, pwq);
}
}
@@ -842,6 +859,17 @@ static int ep_poll_callback(wait_queue_t *wait, unsigned mode, int sync, void *k
struct epitem *epi = ep_item_from_wait(wait);
struct eventpoll *ep = epi->ep;
+ if ((unsigned long)key & POLLFREE) {
+ ep_pwq_from_wait(wait)->whead = NULL;
+ /*
+ * whead = NULL above can race with ep_remove_wait_queue()
+ * which can do another remove_wait_queue() after us, so we
+ * can't use __remove_wait_queue(). whead->lock is held by
+ * the caller.
+ */
+ list_del_init(&wait->task_list);
+ }
+
spin_lock_irqsave(&ep->lock, flags);
/*
diff --git a/fs/exec.c b/fs/exec.c
index d0d2080..92cbd91 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -1073,6 +1073,21 @@ void set_task_comm(struct task_struct *tsk, char *buf)
perf_event_comm(tsk);
}
+static void filename_to_taskname(char *tcomm, const char *fn, unsigned int len)
+{
+ int i, ch;
+
+ /* Copies the binary name from after last slash */
+ for (i = 0; (ch = *(fn++)) != '\0';) {
+ if (ch == '/')
+ i = 0; /* overwrite what we wrote */
+ else
+ if (i < len - 1)
+ tcomm[i++] = ch;
+ }
+ tcomm[i] = '\0';
+}
+
int flush_old_exec(struct linux_binprm * bprm)
{
int retval;
@@ -1087,6 +1102,7 @@ int flush_old_exec(struct linux_binprm * bprm)
set_mm_exe_file(bprm->mm, bprm->file);
+ filename_to_taskname(bprm->tcomm, bprm->filename, sizeof(bprm->tcomm));
/*
* Release all of the old mmap stuff
*/
@@ -1118,10 +1134,6 @@ EXPORT_SYMBOL(would_dump);
void setup_new_exec(struct linux_binprm * bprm)
{
- int i, ch;
- const char *name;
- char tcomm[sizeof(current->comm)];
-
arch_pick_mmap_layout(current->mm);
/* This is the point of no return */
@@ -1132,18 +1144,7 @@ void setup_new_exec(struct linux_binprm * bprm)
else
set_dumpable(current->mm, suid_dumpable);
- name = bprm->filename;
-
- /* Copies the binary name from after last slash */
- for (i=0; (ch = *(name++)) != '\0';) {
- if (ch == '/')
- i = 0; /* overwrite what we wrote */
- else
- if (i < (sizeof(tcomm) - 1))
- tcomm[i++] = ch;
- }
- tcomm[i] = '\0';
- set_task_comm(current, tcomm);
+ set_task_comm(current, bprm->tcomm);
/* Set the new mm task size. We have to do that late because it may
* depend on TIF_32BIT which is only updated in flush_thread() on
diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c
index f855916..5b4a936 100644
--- a/fs/fs-writeback.c
+++ b/fs/fs-writeback.c
@@ -53,14 +53,6 @@ struct wb_writeback_work {
};
/*
- * Include the creation of the trace points after defining the
- * wb_writeback_work structure so that the definition remains local to this
- * file.
- */
-#define CREATE_TRACE_POINTS
-#include <trace/events/writeback.h>
-
-/*
* We don't actually have pdflush, but this one is exported though /proc...
*/
int nr_pdflush_threads;
@@ -92,6 +84,14 @@ static inline struct inode *wb_inode(struct list_head *head)
return list_entry(head, struct inode, i_wb_list);
}
+/*
+ * Include the creation of the trace points after defining the
+ * wb_writeback_work structure and inline functions so that the definition
+ * remains local to this file.
+ */
+#define CREATE_TRACE_POINTS
+#include <trace/events/writeback.h>
+
/* Wakeup flusher thread or forker thread to fork it. Requires bdi->wb_lock. */
static void bdi_wakeup_flusher(struct backing_dev_info *bdi)
{
diff --git a/fs/inode.c b/fs/inode.c
index fb10d86..d3ebdbe 100644
--- a/fs/inode.c
+++ b/fs/inode.c
@@ -1651,7 +1651,7 @@ __setup("ihash_entries=", set_ihash_entries);
*/
void __init inode_init_early(void)
{
- int loop;
+ unsigned int loop;
/* If hashes are distributed across NUMA nodes, defer
* hash allocation until vmalloc space is available.
@@ -1669,13 +1669,13 @@ void __init inode_init_early(void)
&i_hash_mask,
0);
- for (loop = 0; loop < (1 << i_hash_shift); loop++)
+ for (loop = 0; loop < (1U << i_hash_shift); loop++)
INIT_HLIST_HEAD(&inode_hashtable[loop]);
}
void __init inode_init(void)
{
- int loop;
+ unsigned int loop;
/* inode slab cache */
inode_cachep = kmem_cache_create("inode_cache",
@@ -1699,7 +1699,7 @@ void __init inode_init(void)
&i_hash_mask,
0);
- for (loop = 0; loop < (1 << i_hash_shift); loop++)
+ for (loop = 0; loop < (1U << i_hash_shift); loop++)
INIT_HLIST_HEAD(&inode_hashtable[loop]);
}
diff --git a/fs/ioprio.c b/fs/ioprio.c
index f84b380..0f1b951 100644
--- a/fs/ioprio.c
+++ b/fs/ioprio.c
@@ -51,7 +51,7 @@ int set_task_ioprio(struct task_struct *task, int ioprio)
ioc = get_task_io_context(task, GFP_ATOMIC, NUMA_NO_NODE);
if (ioc) {
ioc_ioprio_changed(ioc, ioprio);
- put_io_context(ioc, NULL);
+ put_io_context(ioc);
}
return err;
diff --git a/fs/jffs2/erase.c b/fs/jffs2/erase.c
index a01cdad..eafb8d3 100644
--- a/fs/jffs2/erase.c
+++ b/fs/jffs2/erase.c
@@ -335,7 +335,7 @@ static int jffs2_block_check_erase(struct jffs2_sb_info *c, struct jffs2_erasebl
void *ebuf;
uint32_t ofs;
size_t retlen;
- int ret = -EIO;
+ int ret;
unsigned long *wordebuf;
ret = mtd_point(c->mtd, jeb->offset, c->sector_size, &retlen,
diff --git a/fs/namei.c b/fs/namei.c
index 208c6aa..a780ea5 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -1095,8 +1095,10 @@ static struct dentry *d_inode_lookup(struct dentry *parent, struct dentry *dentr
struct dentry *old;
/* Don't create child dentry for a dead directory. */
- if (unlikely(IS_DEADDIR(inode)))
+ if (unlikely(IS_DEADDIR(inode))) {
+ dput(dentry);
return ERR_PTR(-ENOENT);
+ }
old = inode->i_op->lookup(inode, dentry, nd);
if (unlikely(old)) {
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index f0c849c..ec9f6ef 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -3575,8 +3575,8 @@ static ssize_t __nfs4_get_acl_uncached(struct inode *inode, void *buf, size_t bu
}
if (npages > 1) {
/* for decoding across pages */
- args.acl_scratch = alloc_page(GFP_KERNEL);
- if (!args.acl_scratch)
+ res.acl_scratch = alloc_page(GFP_KERNEL);
+ if (!res.acl_scratch)
goto out_free;
}
args.acl_len = npages * PAGE_SIZE;
@@ -3612,8 +3612,8 @@ out_free:
for (i = 0; i < npages; i++)
if (pages[i])
__free_page(pages[i]);
- if (args.acl_scratch)
- __free_page(args.acl_scratch);
+ if (res.acl_scratch)
+ __free_page(res.acl_scratch);
return ret;
}
@@ -4883,8 +4883,10 @@ int nfs4_proc_exchange_id(struct nfs_client *clp, struct rpc_cred *cred)
clp->cl_rpcclient->cl_auth->au_flavor);
res.server_scope = kzalloc(sizeof(struct server_scope), GFP_KERNEL);
- if (unlikely(!res.server_scope))
- return -ENOMEM;
+ if (unlikely(!res.server_scope)) {
+ status = -ENOMEM;
+ goto out;
+ }
status = rpc_call_sync(clp->cl_rpcclient, &msg, RPC_TASK_TIMEOUT);
if (!status)
@@ -4901,12 +4903,13 @@ int nfs4_proc_exchange_id(struct nfs_client *clp, struct rpc_cred *cred)
clp->server_scope = NULL;
}
- if (!clp->server_scope)
+ if (!clp->server_scope) {
clp->server_scope = res.server_scope;
- else
- kfree(res.server_scope);
+ goto out;
+ }
}
-
+ kfree(res.server_scope);
+out:
dprintk("<-- %s status= %d\n", __func__, status);
return status;
}
@@ -5008,37 +5011,53 @@ int nfs4_proc_get_lease_time(struct nfs_client *clp, struct nfs_fsinfo *fsinfo)
return status;
}
+static struct nfs4_slot *nfs4_alloc_slots(u32 max_slots, gfp_t gfp_flags)
+{
+ return kcalloc(max_slots, sizeof(struct nfs4_slot), gfp_flags);
+}
+
+static void nfs4_add_and_init_slots(struct nfs4_slot_table *tbl,
+ struct nfs4_slot *new,
+ u32 max_slots,
+ u32 ivalue)
+{
+ struct nfs4_slot *old = NULL;
+ u32 i;
+
+ spin_lock(&tbl->slot_tbl_lock);
+ if (new) {
+ old = tbl->slots;
+ tbl->slots = new;
+ tbl->max_slots = max_slots;
+ }
+ tbl->highest_used_slotid = -1; /* no slot is currently used */
+ for (i = 0; i < tbl->max_slots; i++)
+ tbl->slots[i].seq_nr = ivalue;
+ spin_unlock(&tbl->slot_tbl_lock);
+ kfree(old);
+}
+
/*
- * Reset a slot table
+ * (re)Initialise a slot table
*/
-static int nfs4_reset_slot_table(struct nfs4_slot_table *tbl, u32 max_reqs,
- int ivalue)
+static int nfs4_realloc_slot_table(struct nfs4_slot_table *tbl, u32 max_reqs,
+ u32 ivalue)
{
struct nfs4_slot *new = NULL;
- int i;
- int ret = 0;
+ int ret = -ENOMEM;
dprintk("--> %s: max_reqs=%u, tbl->max_slots %d\n", __func__,
max_reqs, tbl->max_slots);
/* Does the newly negotiated max_reqs match the existing slot table? */
if (max_reqs != tbl->max_slots) {
- ret = -ENOMEM;
- new = kmalloc(max_reqs * sizeof(struct nfs4_slot),
- GFP_NOFS);
+ new = nfs4_alloc_slots(max_reqs, GFP_NOFS);
if (!new)
goto out;
- ret = 0;
- kfree(tbl->slots);
}
- spin_lock(&tbl->slot_tbl_lock);
- if (new) {
- tbl->slots = new;
- tbl->max_slots = max_reqs;
- }
- for (i = 0; i < tbl->max_slots; ++i)
- tbl->slots[i].seq_nr = ivalue;
- spin_unlock(&tbl->slot_tbl_lock);
+ ret = 0;
+
+ nfs4_add_and_init_slots(tbl, new, max_reqs, ivalue);
dprintk("%s: tbl=%p slots=%p max_slots=%d\n", __func__,
tbl, tbl->slots, tbl->max_slots);
out:
@@ -5061,36 +5080,6 @@ static void nfs4_destroy_slot_tables(struct nfs4_session *session)
}
/*
- * Initialize slot table
- */
-static int nfs4_init_slot_table(struct nfs4_slot_table *tbl,
- int max_slots, int ivalue)
-{
- struct nfs4_slot *slot;
- int ret = -ENOMEM;
-
- BUG_ON(max_slots > NFS4_MAX_SLOT_TABLE);
-
- dprintk("--> %s: max_reqs=%u\n", __func__, max_slots);
-
- slot = kcalloc(max_slots, sizeof(struct nfs4_slot), GFP_NOFS);
- if (!slot)
- goto out;
- ret = 0;
-
- spin_lock(&tbl->slot_tbl_lock);
- tbl->max_slots = max_slots;
- tbl->slots = slot;
- tbl->highest_used_slotid = -1; /* no slot is currently used */
- spin_unlock(&tbl->slot_tbl_lock);
- dprintk("%s: tbl=%p slots=%p max_slots=%d\n", __func__,
- tbl, tbl->slots, tbl->max_slots);
-out:
- dprintk("<-- %s: return %d\n", __func__, ret);
- return ret;
-}
-
-/*
* Initialize or reset the forechannel and backchannel tables
*/
static int nfs4_setup_session_slot_tables(struct nfs4_session *ses)
@@ -5101,25 +5090,16 @@ static int nfs4_setup_session_slot_tables(struct nfs4_session *ses)
dprintk("--> %s\n", __func__);
/* Fore channel */
tbl = &ses->fc_slot_table;
- if (tbl->slots == NULL) {
- status = nfs4_init_slot_table(tbl, ses->fc_attrs.max_reqs, 1);
- if (status) /* -ENOMEM */
- return status;
- } else {
- status = nfs4_reset_slot_table(tbl, ses->fc_attrs.max_reqs, 1);
- if (status)
- return status;
- }
+ status = nfs4_realloc_slot_table(tbl, ses->fc_attrs.max_reqs, 1);
+ if (status) /* -ENOMEM */
+ return status;
/* Back channel */
tbl = &ses->bc_slot_table;
- if (tbl->slots == NULL) {
- status = nfs4_init_slot_table(tbl, ses->bc_attrs.max_reqs, 0);
- if (status)
- /* Fore and back channel share a connection so get
- * both slot tables or neither */
- nfs4_destroy_slot_tables(ses);
- } else
- status = nfs4_reset_slot_table(tbl, ses->bc_attrs.max_reqs, 0);
+ status = nfs4_realloc_slot_table(tbl, ses->bc_attrs.max_reqs, 0);
+ if (status && tbl->slots == NULL)
+ /* Fore and back channel share a connection so get
+ * both slot tables or neither */
+ nfs4_destroy_slot_tables(ses);
return status;
}
diff --git a/fs/nfs/nfs4state.c b/fs/nfs/nfs4state.c
index a53f33b..4539203 100644
--- a/fs/nfs/nfs4state.c
+++ b/fs/nfs/nfs4state.c
@@ -1132,6 +1132,8 @@ void nfs4_schedule_stateid_recovery(const struct nfs_server *server, struct nfs4
{
struct nfs_client *clp = server->nfs_client;
+ if (test_and_clear_bit(NFS_DELEGATED_STATE, &state->flags))
+ nfs_async_inode_return_delegation(state->inode, &state->stateid);
nfs4_state_mark_reclaim_nograce(clp, state);
nfs4_schedule_state_manager(clp);
}
diff --git a/fs/nfs/nfs4xdr.c b/fs/nfs/nfs4xdr.c
index 95e92e4..33bd8d0 100644
--- a/fs/nfs/nfs4xdr.c
+++ b/fs/nfs/nfs4xdr.c
@@ -2522,7 +2522,6 @@ static void nfs4_xdr_enc_getacl(struct rpc_rqst *req, struct xdr_stream *xdr,
xdr_inline_pages(&req->rq_rcv_buf, replen << 2,
args->acl_pages, args->acl_pgbase, args->acl_len);
- xdr_set_scratch_buffer(xdr, page_address(args->acl_scratch), PAGE_SIZE);
encode_nops(&hdr);
}
@@ -6032,6 +6031,10 @@ nfs4_xdr_dec_getacl(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
struct compound_hdr hdr;
int status;
+ if (res->acl_scratch != NULL) {
+ void *p = page_address(res->acl_scratch);
+ xdr_set_scratch_buffer(xdr, p, PAGE_SIZE);
+ }
status = decode_compound_hdr(xdr, &hdr);
if (status)
goto out;
diff --git a/fs/nilfs2/ioctl.c b/fs/nilfs2/ioctl.c
index 8866496..2a70fce 100644
--- a/fs/nilfs2/ioctl.c
+++ b/fs/nilfs2/ioctl.c
@@ -603,6 +603,8 @@ static int nilfs_ioctl_clean_segments(struct inode *inode, struct file *filp,
nsegs = argv[4].v_nmembs;
if (argv[4].v_size != argsz[4])
goto out;
+ if (nsegs > UINT_MAX / sizeof(__u64))
+ goto out;
/*
* argv[4] points to segment numbers this ioctl cleans. We
diff --git a/fs/ntfs/attrib.c b/fs/ntfs/attrib.c
index f14fde2..e028199 100644
--- a/fs/ntfs/attrib.c
+++ b/fs/ntfs/attrib.c
@@ -1,7 +1,7 @@
/**
* attrib.c - NTFS attribute operations. Part of the Linux-NTFS project.
*
- * Copyright (c) 2001-2007 Anton Altaparmakov
+ * Copyright (c) 2001-2012 Anton Altaparmakov and Tuxera Inc.
* Copyright (c) 2002 Richard Russon
*
* This program/include file is free software; you can redistribute it and/or
@@ -345,10 +345,10 @@ LCN ntfs_attr_vcn_to_lcn_nolock(ntfs_inode *ni, const VCN vcn,
unsigned long flags;
bool is_retry = false;
+ BUG_ON(!ni);
ntfs_debug("Entering for i_ino 0x%lx, vcn 0x%llx, %s_locked.",
ni->mft_no, (unsigned long long)vcn,
write_locked ? "write" : "read");
- BUG_ON(!ni);
BUG_ON(!NInoNonResident(ni));
BUG_ON(vcn < 0);
if (!ni->runlist.rl) {
@@ -469,9 +469,9 @@ runlist_element *ntfs_attr_find_vcn_nolock(ntfs_inode *ni, const VCN vcn,
int err = 0;
bool is_retry = false;
+ BUG_ON(!ni);
ntfs_debug("Entering for i_ino 0x%lx, vcn 0x%llx, with%s ctx.",
ni->mft_no, (unsigned long long)vcn, ctx ? "" : "out");
- BUG_ON(!ni);
BUG_ON(!NInoNonResident(ni));
BUG_ON(vcn < 0);
if (!ni->runlist.rl) {
diff --git a/fs/ntfs/mft.c b/fs/ntfs/mft.c
index 382857f..3014a36 100644
--- a/fs/ntfs/mft.c
+++ b/fs/ntfs/mft.c
@@ -1,7 +1,7 @@
/**
* mft.c - NTFS kernel mft record operations. Part of the Linux-NTFS project.
*
- * Copyright (c) 2001-2011 Anton Altaparmakov and Tuxera Inc.
+ * Copyright (c) 2001-2012 Anton Altaparmakov and Tuxera Inc.
* Copyright (c) 2002 Richard Russon
*
* This program/include file is free software; you can redistribute it and/or
@@ -1367,7 +1367,7 @@ static int ntfs_mft_bitmap_extend_allocation_nolock(ntfs_volume *vol)
ntfs_error(vol->sb, "Failed to merge runlists for mft "
"bitmap.");
if (ntfs_cluster_free_from_rl(vol, rl2)) {
- ntfs_error(vol->sb, "Failed to dealocate "
+ ntfs_error(vol->sb, "Failed to deallocate "
"allocated cluster.%s", es);
NVolSetErrors(vol);
}
@@ -1805,7 +1805,7 @@ static int ntfs_mft_data_extend_allocation_nolock(ntfs_volume *vol)
ntfs_error(vol->sb, "Failed to merge runlists for mft data "
"attribute.");
if (ntfs_cluster_free_from_rl(vol, rl2)) {
- ntfs_error(vol->sb, "Failed to dealocate clusters "
+ ntfs_error(vol->sb, "Failed to deallocate clusters "
"from the mft data attribute.%s", es);
NVolSetErrors(vol);
}
diff --git a/fs/ntfs/super.c b/fs/ntfs/super.c
index 5a4a8af..f907611 100644
--- a/fs/ntfs/super.c
+++ b/fs/ntfs/super.c
@@ -1,7 +1,7 @@
/*
* super.c - NTFS kernel super block handling. Part of the Linux-NTFS project.
*
- * Copyright (c) 2001-2011 Anton Altaparmakov and Tuxera Inc.
+ * Copyright (c) 2001-2012 Anton Altaparmakov and Tuxera Inc.
* Copyright (c) 2001,2002 Richard Russon
*
* This program/include file is free software; you can redistribute it and/or
@@ -1239,7 +1239,6 @@ static int check_windows_hibernation_status(ntfs_volume *vol)
{
MFT_REF mref;
struct inode *vi;
- ntfs_inode *ni;
struct page *page;
u32 *kaddr, *kend;
ntfs_name *name = NULL;
@@ -1290,7 +1289,6 @@ static int check_windows_hibernation_status(ntfs_volume *vol)
"is not the system volume.", i_size_read(vi));
goto iput_out;
}
- ni = NTFS_I(vi);
page = ntfs_map_page(vi->i_mapping, 0);
if (IS_ERR(page)) {
ntfs_error(vol->sb, "Failed to read from hiberfil.sys.");
diff --git a/fs/ocfs2/namei.c b/fs/ocfs2/namei.c
index be24469..a9856e3 100644
--- a/fs/ocfs2/namei.c
+++ b/fs/ocfs2/namei.c
@@ -1053,7 +1053,7 @@ static int ocfs2_rename(struct inode *old_dir,
handle_t *handle = NULL;
struct buffer_head *old_dir_bh = NULL;
struct buffer_head *new_dir_bh = NULL;
- nlink_t old_dir_nlink = old_dir->i_nlink;
+ u32 old_dir_nlink = old_dir->i_nlink;
struct ocfs2_dinode *old_di;
struct ocfs2_dir_lookup_result old_inode_dot_dot_res = { NULL, };
struct ocfs2_dir_lookup_result target_lookup_res = { NULL, };
diff --git a/fs/quota/quota.c b/fs/quota/quota.c
index 7898cd6..fc2c438 100644
--- a/fs/quota/quota.c
+++ b/fs/quota/quota.c
@@ -292,11 +292,26 @@ static int do_quotactl(struct super_block *sb, int type, int cmd, qid_t id,
}
}
+/* Return 1 if 'cmd' will block on frozen filesystem */
+static int quotactl_cmd_write(int cmd)
+{
+ switch (cmd) {
+ case Q_GETFMT:
+ case Q_GETINFO:
+ case Q_SYNC:
+ case Q_XGETQSTAT:
+ case Q_XGETQUOTA:
+ case Q_XQUOTASYNC:
+ return 0;
+ }
+ return 1;
+}
+
/*
* look up a superblock on which quota ops will be performed
* - use the name of a block device to find the superblock thereon
*/
-static struct super_block *quotactl_block(const char __user *special)
+static struct super_block *quotactl_block(const char __user *special, int cmd)
{
#ifdef CONFIG_BLOCK
struct block_device *bdev;
@@ -309,7 +324,10 @@ static struct super_block *quotactl_block(const char __user *special)
putname(tmp);
if (IS_ERR(bdev))
return ERR_CAST(bdev);
- sb = get_super(bdev);
+ if (quotactl_cmd_write(cmd))
+ sb = get_super_thawed(bdev);
+ else
+ sb = get_super(bdev);
bdput(bdev);
if (!sb)
return ERR_PTR(-ENODEV);
@@ -361,7 +379,7 @@ SYSCALL_DEFINE4(quotactl, unsigned int, cmd, const char __user *, special,
pathp = &path;
}
- sb = quotactl_block(special);
+ sb = quotactl_block(special, cmds);
if (IS_ERR(sb)) {
ret = PTR_ERR(sb);
goto out;
diff --git a/fs/select.c b/fs/select.c
index d33418f..e782258 100644
--- a/fs/select.c
+++ b/fs/select.c
@@ -912,7 +912,7 @@ static long do_restart_poll(struct restart_block *restart_block)
}
SYSCALL_DEFINE3(poll, struct pollfd __user *, ufds, unsigned int, nfds,
- long, timeout_msecs)
+ int, timeout_msecs)
{
struct timespec end_time, *to = NULL;
int ret;
diff --git a/fs/signalfd.c b/fs/signalfd.c
index 492465b..7ae2a57 100644
--- a/fs/signalfd.c
+++ b/fs/signalfd.c
@@ -30,6 +30,21 @@
#include <linux/signalfd.h>
#include <linux/syscalls.h>
+void signalfd_cleanup(struct sighand_struct *sighand)
+{
+ wait_queue_head_t *wqh = &sighand->signalfd_wqh;
+ /*
+ * The lockless check can race with remove_wait_queue() in progress,
+ * but in this case its caller should run under rcu_read_lock() and
+ * sighand_cachep is SLAB_DESTROY_BY_RCU, we can safely return.
+ */
+ if (likely(!waitqueue_active(wqh)))
+ return;
+
+ /* wait_queue_t->func(POLLFREE) should do remove_wait_queue() */
+ wake_up_poll(wqh, POLLHUP | POLLFREE);
+}
+
struct signalfd_ctx {
sigset_t sigmask;
};
diff --git a/fs/super.c b/fs/super.c
index 6015c02..6277ec6 100644
--- a/fs/super.c
+++ b/fs/super.c
@@ -634,6 +634,28 @@ rescan:
EXPORT_SYMBOL(get_super);
/**
+ * get_super_thawed - get thawed superblock of a device
+ * @bdev: device to get the superblock for
+ *
+ * Scans the superblock list and finds the superblock of the file system
+ * mounted on the device. The superblock is returned once it is thawed
+ * (or immediately if it was not frozen). %NULL is returned if no match
+ * is found.
+ */
+struct super_block *get_super_thawed(struct block_device *bdev)
+{
+ while (1) {
+ struct super_block *s = get_super(bdev);
+ if (!s || s->s_frozen == SB_UNFROZEN)
+ return s;
+ up_read(&s->s_umount);
+ vfs_check_frozen(s, SB_FREEZE_WRITE);
+ put_super(s);
+ }
+}
+EXPORT_SYMBOL(get_super_thawed);
+
+/**
* get_active_super - get an active reference to the superblock of a device
* @bdev: device to get the superblock for
*
diff --git a/fs/xfs/kmem.h b/fs/xfs/kmem.h
index 292eff1..ab7c53f 100644
--- a/fs/xfs/kmem.h
+++ b/fs/xfs/kmem.h
@@ -110,10 +110,4 @@ kmem_zone_destroy(kmem_zone_t *zone)
extern void *kmem_zone_alloc(kmem_zone_t *, unsigned int __nocast);
extern void *kmem_zone_zalloc(kmem_zone_t *, unsigned int __nocast);
-static inline int
-kmem_shake_allow(gfp_t gfp_mask)
-{
- return ((gfp_mask & __GFP_WAIT) && (gfp_mask & __GFP_FS));
-}
-
#endif /* __XFS_SUPPORT_KMEM_H__ */
diff --git a/fs/xfs/xfs_dquot.c b/fs/xfs/xfs_dquot.c
index b4ff40b..53db20e 100644
--- a/fs/xfs/xfs_dquot.c
+++ b/fs/xfs/xfs_dquot.c
@@ -63,82 +63,6 @@ int xfs_dqerror_mod = 33;
static struct lock_class_key xfs_dquot_other_class;
/*
- * Allocate and initialize a dquot. We don't always allocate fresh memory;
- * we try to reclaim a free dquot if the number of incore dquots are above
- * a threshold.
- * The only field inside the core that gets initialized at this point
- * is the d_id field. The idea is to fill in the entire q_core
- * when we read in the on disk dquot.
- */
-STATIC xfs_dquot_t *
-xfs_qm_dqinit(
- xfs_mount_t *mp,
- xfs_dqid_t id,
- uint type)
-{
- xfs_dquot_t *dqp;
- boolean_t brandnewdquot;
-
- brandnewdquot = xfs_qm_dqalloc_incore(&dqp);
- dqp->dq_flags = type;
- dqp->q_core.d_id = cpu_to_be32(id);
- dqp->q_mount = mp;
-
- /*
- * No need to re-initialize these if this is a reclaimed dquot.
- */
- if (brandnewdquot) {
- INIT_LIST_HEAD(&dqp->q_freelist);
- mutex_init(&dqp->q_qlock);
- init_waitqueue_head(&dqp->q_pinwait);
-
- /*
- * Because we want to use a counting completion, complete
- * the flush completion once to allow a single access to
- * the flush completion without blocking.
- */
- init_completion(&dqp->q_flush);
- complete(&dqp->q_flush);
-
- trace_xfs_dqinit(dqp);
- } else {
- /*
- * Only the q_core portion was zeroed in dqreclaim_one().
- * So, we need to reset others.
- */
- dqp->q_nrefs = 0;
- dqp->q_blkno = 0;
- INIT_LIST_HEAD(&dqp->q_mplist);
- INIT_LIST_HEAD(&dqp->q_hashlist);
- dqp->q_bufoffset = 0;
- dqp->q_fileoffset = 0;
- dqp->q_transp = NULL;
- dqp->q_gdquot = NULL;
- dqp->q_res_bcount = 0;
- dqp->q_res_icount = 0;
- dqp->q_res_rtbcount = 0;
- atomic_set(&dqp->q_pincount, 0);
- dqp->q_hash = NULL;
- ASSERT(list_empty(&dqp->q_freelist));
-
- trace_xfs_dqreuse(dqp);
- }
-
- /*
- * In either case we need to make sure group quotas have a different
- * lock class than user quotas, to make sure lockdep knows we can
- * locks of one of each at the same time.
- */
- if (!(type & XFS_DQ_USER))
- lockdep_set_class(&dqp->q_qlock, &xfs_dquot_other_class);
-
- /*
- * log item gets initialized later
- */
- return (dqp);
-}
-
-/*
* This is called to free all the memory associated with a dquot
*/
void
@@ -215,10 +139,10 @@ xfs_qm_adjust_dqtimers(
if (!d->d_btimer) {
if ((d->d_blk_softlimit &&
- (be64_to_cpu(d->d_bcount) >=
+ (be64_to_cpu(d->d_bcount) >
be64_to_cpu(d->d_blk_softlimit))) ||
(d->d_blk_hardlimit &&
- (be64_to_cpu(d->d_bcount) >=
+ (be64_to_cpu(d->d_bcount) >
be64_to_cpu(d->d_blk_hardlimit)))) {
d->d_btimer = cpu_to_be32(get_seconds() +
mp->m_quotainfo->qi_btimelimit);
@@ -227,10 +151,10 @@ xfs_qm_adjust_dqtimers(
}
} else {
if ((!d->d_blk_softlimit ||
- (be64_to_cpu(d->d_bcount) <
+ (be64_to_cpu(d->d_bcount) <=
be64_to_cpu(d->d_blk_softlimit))) &&
(!d->d_blk_hardlimit ||
- (be64_to_cpu(d->d_bcount) <
+ (be64_to_cpu(d->d_bcount) <=
be64_to_cpu(d->d_blk_hardlimit)))) {
d->d_btimer = 0;
}
@@ -238,10 +162,10 @@ xfs_qm_adjust_dqtimers(
if (!d->d_itimer) {
if ((d->d_ino_softlimit &&
- (be64_to_cpu(d->d_icount) >=
+ (be64_to_cpu(d->d_icount) >
be64_to_cpu(d->d_ino_softlimit))) ||
(d->d_ino_hardlimit &&
- (be64_to_cpu(d->d_icount) >=
+ (be64_to_cpu(d->d_icount) >
be64_to_cpu(d->d_ino_hardlimit)))) {
d->d_itimer = cpu_to_be32(get_seconds() +
mp->m_quotainfo->qi_itimelimit);
@@ -250,10 +174,10 @@ xfs_qm_adjust_dqtimers(
}
} else {
if ((!d->d_ino_softlimit ||
- (be64_to_cpu(d->d_icount) <
+ (be64_to_cpu(d->d_icount) <=
be64_to_cpu(d->d_ino_softlimit))) &&
(!d->d_ino_hardlimit ||
- (be64_to_cpu(d->d_icount) <
+ (be64_to_cpu(d->d_icount) <=
be64_to_cpu(d->d_ino_hardlimit)))) {
d->d_itimer = 0;
}
@@ -261,10 +185,10 @@ xfs_qm_adjust_dqtimers(
if (!d->d_rtbtimer) {
if ((d->d_rtb_softlimit &&
- (be64_to_cpu(d->d_rtbcount) >=
+ (be64_to_cpu(d->d_rtbcount) >
be64_to_cpu(d->d_rtb_softlimit))) ||
(d->d_rtb_hardlimit &&
- (be64_to_cpu(d->d_rtbcount) >=
+ (be64_to_cpu(d->d_rtbcount) >
be64_to_cpu(d->d_rtb_hardlimit)))) {
d->d_rtbtimer = cpu_to_be32(get_seconds() +
mp->m_quotainfo->qi_rtbtimelimit);
@@ -273,10 +197,10 @@ xfs_qm_adjust_dqtimers(
}
} else {
if ((!d->d_rtb_softlimit ||
- (be64_to_cpu(d->d_rtbcount) <
+ (be64_to_cpu(d->d_rtbcount) <=
be64_to_cpu(d->d_rtb_softlimit))) &&
(!d->d_rtb_hardlimit ||
- (be64_to_cpu(d->d_rtbcount) <
+ (be64_to_cpu(d->d_rtbcount) <=
be64_to_cpu(d->d_rtb_hardlimit)))) {
d->d_rtbtimer = 0;
}
@@ -567,7 +491,32 @@ xfs_qm_dqread(
int error;
int cancelflags = 0;
- dqp = xfs_qm_dqinit(mp, id, type);
+
+ dqp = kmem_zone_zalloc(xfs_Gqm->qm_dqzone, KM_SLEEP);
+
+ dqp->dq_flags = type;
+ dqp->q_core.d_id = cpu_to_be32(id);
+ dqp->q_mount = mp;
+ INIT_LIST_HEAD(&dqp->q_freelist);
+ mutex_init(&dqp->q_qlock);
+ init_waitqueue_head(&dqp->q_pinwait);
+
+ /*
+ * Because we want to use a counting completion, complete
+ * the flush completion once to allow a single access to
+ * the flush completion without blocking.
+ */
+ init_completion(&dqp->q_flush);
+ complete(&dqp->q_flush);
+
+ /*
+ * Make sure group quotas have a different lock class than user
+ * quotas.
+ */
+ if (!(type & XFS_DQ_USER))
+ lockdep_set_class(&dqp->q_qlock, &xfs_dquot_other_class);
+
+ atomic_inc(&xfs_Gqm->qm_totaldquots);
trace_xfs_dqread(dqp);
diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c
index 541a508..0ed9ee7 100644
--- a/fs/xfs/xfs_log_recover.c
+++ b/fs/xfs/xfs_log_recover.c
@@ -1489,7 +1489,7 @@ xlog_recover_add_to_cont_trans(
old_ptr = item->ri_buf[item->ri_cnt-1].i_addr;
old_len = item->ri_buf[item->ri_cnt-1].i_len;
- ptr = kmem_realloc(old_ptr, len+old_len, old_len, 0u);
+ ptr = kmem_realloc(old_ptr, len+old_len, old_len, KM_SLEEP);
memcpy(&ptr[old_len], dp, len); /* d, s, l */
item->ri_buf[item->ri_cnt-1].i_len += len;
item->ri_buf[item->ri_cnt-1].i_addr = ptr;
@@ -1981,7 +1981,7 @@ xfs_qm_dqcheck(
if (!errs && ddq->d_id) {
if (ddq->d_blk_softlimit &&
- be64_to_cpu(ddq->d_bcount) >=
+ be64_to_cpu(ddq->d_bcount) >
be64_to_cpu(ddq->d_blk_softlimit)) {
if (!ddq->d_btimer) {
if (flags & XFS_QMOPT_DOWARN)
@@ -1992,7 +1992,7 @@ xfs_qm_dqcheck(
}
}
if (ddq->d_ino_softlimit &&
- be64_to_cpu(ddq->d_icount) >=
+ be64_to_cpu(ddq->d_icount) >
be64_to_cpu(ddq->d_ino_softlimit)) {
if (!ddq->d_itimer) {
if (flags & XFS_QMOPT_DOWARN)
@@ -2003,7 +2003,7 @@ xfs_qm_dqcheck(
}
}
if (ddq->d_rtb_softlimit &&
- be64_to_cpu(ddq->d_rtbcount) >=
+ be64_to_cpu(ddq->d_rtbcount) >
be64_to_cpu(ddq->d_rtb_softlimit)) {
if (!ddq->d_rtbtimer) {
if (flags & XFS_QMOPT_DOWARN)
diff --git a/fs/xfs/xfs_qm.c b/fs/xfs/xfs_qm.c
index 671f37e..c436def 100644
--- a/fs/xfs/xfs_qm.c
+++ b/fs/xfs/xfs_qm.c
@@ -50,7 +50,6 @@
*/
struct mutex xfs_Gqm_lock;
struct xfs_qm *xfs_Gqm;
-uint ndquot;
kmem_zone_t *qm_dqzone;
kmem_zone_t *qm_dqtrxzone;
@@ -93,7 +92,6 @@ xfs_Gqm_init(void)
goto out_free_udqhash;
hsize /= sizeof(xfs_dqhash_t);
- ndquot = hsize << 8;
xqm = kmem_zalloc(sizeof(xfs_qm_t), KM_SLEEP);
xqm->qm_dqhashmask = hsize - 1;
@@ -137,7 +135,6 @@ xfs_Gqm_init(void)
xqm->qm_dqtrxzone = qm_dqtrxzone;
atomic_set(&xqm->qm_totaldquots, 0);
- xqm->qm_dqfree_ratio = XFS_QM_DQFREE_RATIO;
xqm->qm_nrefs = 0;
return xqm;
@@ -1600,216 +1597,150 @@ xfs_qm_init_quotainos(
return 0;
}
+STATIC void
+xfs_qm_dqfree_one(
+ struct xfs_dquot *dqp)
+{
+ struct xfs_mount *mp = dqp->q_mount;
+ struct xfs_quotainfo *qi = mp->m_quotainfo;
+ mutex_lock(&dqp->q_hash->qh_lock);
+ list_del_init(&dqp->q_hashlist);
+ dqp->q_hash->qh_version++;
+ mutex_unlock(&dqp->q_hash->qh_lock);
-/*
- * Pop the least recently used dquot off the freelist and recycle it.
- */
-STATIC struct xfs_dquot *
-xfs_qm_dqreclaim_one(void)
+ mutex_lock(&qi->qi_dqlist_lock);
+ list_del_init(&dqp->q_mplist);
+ qi->qi_dquots--;
+ qi->qi_dqreclaims++;
+ mutex_unlock(&qi->qi_dqlist_lock);
+
+ xfs_qm_dqdestroy(dqp);
+}
+
+STATIC void
+xfs_qm_dqreclaim_one(
+ struct xfs_dquot *dqp,
+ struct list_head *dispose_list)
{
- struct xfs_dquot *dqp;
- int restarts = 0;
+ struct xfs_mount *mp = dqp->q_mount;
+ int error;
- mutex_lock(&xfs_Gqm->qm_dqfrlist_lock);
-restart:
- list_for_each_entry(dqp, &xfs_Gqm->qm_dqfrlist, q_freelist) {
- struct xfs_mount *mp = dqp->q_mount;
+ if (!xfs_dqlock_nowait(dqp))
+ goto out_busy;
- if (!xfs_dqlock_nowait(dqp))
- continue;
+ /*
+ * This dquot has acquired a reference in the meantime remove it from
+ * the freelist and try again.
+ */
+ if (dqp->q_nrefs) {
+ xfs_dqunlock(dqp);
- /*
- * This dquot has already been grabbed by dqlookup.
- * Remove it from the freelist and try again.
- */
- if (dqp->q_nrefs) {
- trace_xfs_dqreclaim_want(dqp);
- XQM_STATS_INC(xqmstats.xs_qm_dqwants);
-
- list_del_init(&dqp->q_freelist);
- xfs_Gqm->qm_dqfrlist_cnt--;
- restarts++;
- goto dqunlock;
- }
+ trace_xfs_dqreclaim_want(dqp);
+ XQM_STATS_INC(xqmstats.xs_qm_dqwants);
- ASSERT(dqp->q_hash);
- ASSERT(!list_empty(&dqp->q_mplist));
+ list_del_init(&dqp->q_freelist);
+ xfs_Gqm->qm_dqfrlist_cnt--;
+ return;
+ }
- /*
- * Try to grab the flush lock. If this dquot is in the process
- * of getting flushed to disk, we don't want to reclaim it.
- */
- if (!xfs_dqflock_nowait(dqp))
- goto dqunlock;
+ ASSERT(dqp->q_hash);
+ ASSERT(!list_empty(&dqp->q_mplist));
- /*
- * We have the flush lock so we know that this is not in the
- * process of being flushed. So, if this is dirty, flush it
- * DELWRI so that we don't get a freelist infested with
- * dirty dquots.
- */
- if (XFS_DQ_IS_DIRTY(dqp)) {
- int error;
+ /*
+ * Try to grab the flush lock. If this dquot is in the process of
+ * getting flushed to disk, we don't want to reclaim it.
+ */
+ if (!xfs_dqflock_nowait(dqp))
+ goto out_busy;
- trace_xfs_dqreclaim_dirty(dqp);
+ /*
+ * We have the flush lock so we know that this is not in the
+ * process of being flushed. So, if this is dirty, flush it
+ * DELWRI so that we don't get a freelist infested with
+ * dirty dquots.
+ */
+ if (XFS_DQ_IS_DIRTY(dqp)) {
+ trace_xfs_dqreclaim_dirty(dqp);
- /*
- * We flush it delayed write, so don't bother
- * releasing the freelist lock.
- */
- error = xfs_qm_dqflush(dqp, SYNC_TRYLOCK);
- if (error) {
- xfs_warn(mp, "%s: dquot %p flush failed",
- __func__, dqp);
- }
- goto dqunlock;
+ /*
+ * We flush it delayed write, so don't bother releasing the
+ * freelist lock.
+ */
+ error = xfs_qm_dqflush(dqp, 0);
+ if (error) {
+ xfs_warn(mp, "%s: dquot %p flush failed",
+ __func__, dqp);
}
- xfs_dqfunlock(dqp);
/*
- * Prevent lookup now that we are going to reclaim the dquot.
- * Once XFS_DQ_FREEING is set lookup won't touch the dquot,
- * thus we can drop the lock now.
+ * Give the dquot another try on the freelist, as the
+ * flushing will take some time.
*/
- dqp->dq_flags |= XFS_DQ_FREEING;
- xfs_dqunlock(dqp);
-
- mutex_lock(&dqp->q_hash->qh_lock);
- list_del_init(&dqp->q_hashlist);
- dqp->q_hash->qh_version++;
- mutex_unlock(&dqp->q_hash->qh_lock);
-
- mutex_lock(&mp->m_quotainfo->qi_dqlist_lock);
- list_del_init(&dqp->q_mplist);
- mp->m_quotainfo->qi_dquots--;
- mp->m_quotainfo->qi_dqreclaims++;
- mutex_unlock(&mp->m_quotainfo->qi_dqlist_lock);
+ goto out_busy;
+ }
+ xfs_dqfunlock(dqp);
- ASSERT(dqp->q_nrefs == 0);
- list_del_init(&dqp->q_freelist);
- xfs_Gqm->qm_dqfrlist_cnt--;
+ /*
+ * Prevent lookups now that we are past the point of no return.
+ */
+ dqp->dq_flags |= XFS_DQ_FREEING;
+ xfs_dqunlock(dqp);
- mutex_unlock(&xfs_Gqm->qm_dqfrlist_lock);
- return dqp;
-dqunlock:
- xfs_dqunlock(dqp);
- if (restarts >= XFS_QM_RECLAIM_MAX_RESTARTS)
- break;
- goto restart;
- }
+ ASSERT(dqp->q_nrefs == 0);
+ list_move_tail(&dqp->q_freelist, dispose_list);
+ xfs_Gqm->qm_dqfrlist_cnt--;
- mutex_unlock(&xfs_Gqm->qm_dqfrlist_lock);
- return NULL;
-}
+ trace_xfs_dqreclaim_done(dqp);
+ XQM_STATS_INC(xqmstats.xs_qm_dqreclaims);
+ return;
-/*
- * Traverse the freelist of dquots and attempt to reclaim a maximum of
- * 'howmany' dquots. This operation races with dqlookup(), and attempts to
- * favor the lookup function ...
- */
-STATIC int
-xfs_qm_shake_freelist(
- int howmany)
-{
- int nreclaimed = 0;
- xfs_dquot_t *dqp;
+out_busy:
+ xfs_dqunlock(dqp);
- if (howmany <= 0)
- return 0;
+ /*
+ * Move the dquot to the tail of the list so that we don't spin on it.
+ */
+ list_move_tail(&dqp->q_freelist, &xfs_Gqm->qm_dqfrlist);
- while (nreclaimed < howmany) {
- dqp = xfs_qm_dqreclaim_one();
- if (!dqp)
- return nreclaimed;
- xfs_qm_dqdestroy(dqp);
- nreclaimed++;
- }
- return nreclaimed;
+ trace_xfs_dqreclaim_busy(dqp);
+ XQM_STATS_INC(xqmstats.xs_qm_dqreclaim_misses);
}
-/*
- * The kmem_shake interface is invoked when memory is running low.
- */
-/* ARGSUSED */
STATIC int
xfs_qm_shake(
- struct shrinker *shrink,
- struct shrink_control *sc)
+ struct shrinker *shrink,
+ struct shrink_control *sc)
{
- int ndqused, nfree, n;
- gfp_t gfp_mask = sc->gfp_mask;
-
- if (!kmem_shake_allow(gfp_mask))
- return 0;
- if (!xfs_Gqm)
- return 0;
-
- nfree = xfs_Gqm->qm_dqfrlist_cnt; /* free dquots */
- /* incore dquots in all f/s's */
- ndqused = atomic_read(&xfs_Gqm->qm_totaldquots) - nfree;
-
- ASSERT(ndqused >= 0);
+ int nr_to_scan = sc->nr_to_scan;
+ LIST_HEAD (dispose_list);
+ struct xfs_dquot *dqp;
- if (nfree <= ndqused && nfree < ndquot)
+ if ((sc->gfp_mask & (__GFP_FS|__GFP_WAIT)) != (__GFP_FS|__GFP_WAIT))
return 0;
+ if (!nr_to_scan)
+ goto out;
- ndqused *= xfs_Gqm->qm_dqfree_ratio; /* target # of free dquots */
- n = nfree - ndqused - ndquot; /* # over target */
-
- return xfs_qm_shake_freelist(MAX(nfree, n));
-}
-
-
-/*------------------------------------------------------------------*/
-
-/*
- * Return a new incore dquot. Depending on the number of
- * dquots in the system, we either allocate a new one on the kernel heap,
- * or reclaim a free one.
- * Return value is B_TRUE if we allocated a new dquot, B_FALSE if we managed
- * to reclaim an existing one from the freelist.
- */
-boolean_t
-xfs_qm_dqalloc_incore(
- xfs_dquot_t **O_dqpp)
-{
- xfs_dquot_t *dqp;
-
- /*
- * Check against high water mark to see if we want to pop
- * a nincompoop dquot off the freelist.
- */
- if (atomic_read(&xfs_Gqm->qm_totaldquots) >= ndquot) {
- /*
- * Try to recycle a dquot from the freelist.
- */
- if ((dqp = xfs_qm_dqreclaim_one())) {
- XQM_STATS_INC(xqmstats.xs_qm_dqreclaims);
- /*
- * Just zero the core here. The rest will get
- * reinitialized by caller. XXX we shouldn't even
- * do this zero ...
- */
- memset(&dqp->q_core, 0, sizeof(dqp->q_core));
- *O_dqpp = dqp;
- return B_FALSE;
- }
- XQM_STATS_INC(xqmstats.xs_qm_dqreclaim_misses);
+ mutex_lock(&xfs_Gqm->qm_dqfrlist_lock);
+ while (!list_empty(&xfs_Gqm->qm_dqfrlist)) {
+ if (nr_to_scan-- <= 0)
+ break;
+ dqp = list_first_entry(&xfs_Gqm->qm_dqfrlist, struct xfs_dquot,
+ q_freelist);
+ xfs_qm_dqreclaim_one(dqp, &dispose_list);
}
+ mutex_unlock(&xfs_Gqm->qm_dqfrlist_lock);
- /*
- * Allocate a brand new dquot on the kernel heap and return it
- * to the caller to initialize.
- */
- ASSERT(xfs_Gqm->qm_dqzone != NULL);
- *O_dqpp = kmem_zone_zalloc(xfs_Gqm->qm_dqzone, KM_SLEEP);
- atomic_inc(&xfs_Gqm->qm_totaldquots);
-
- return B_TRUE;
+ while (!list_empty(&dispose_list)) {
+ dqp = list_first_entry(&dispose_list, struct xfs_dquot,
+ q_freelist);
+ list_del_init(&dqp->q_freelist);
+ xfs_qm_dqfree_one(dqp);
+ }
+out:
+ return (xfs_Gqm->qm_dqfrlist_cnt / 100) * sysctl_vfs_cache_pressure;
}
-
/*
* Start a transaction and write the incore superblock changes to
* disk. flags parameter indicates which fields have changed.
diff --git a/fs/xfs/xfs_qm.h b/fs/xfs/xfs_qm.h
index 9b4f3ad..9a9b997 100644
--- a/fs/xfs/xfs_qm.h
+++ b/fs/xfs/xfs_qm.h
@@ -26,24 +26,12 @@
struct xfs_qm;
struct xfs_inode;
-extern uint ndquot;
extern struct mutex xfs_Gqm_lock;
extern struct xfs_qm *xfs_Gqm;
extern kmem_zone_t *qm_dqzone;
extern kmem_zone_t *qm_dqtrxzone;
/*
- * Ditto, for xfs_qm_dqreclaim_one.
- */
-#define XFS_QM_RECLAIM_MAX_RESTARTS 4
-
-/*
- * Ideal ratio of free to in use dquots. Quota manager makes an attempt
- * to keep this balance.
- */
-#define XFS_QM_DQFREE_RATIO 2
-
-/*
* Dquot hashtable constants/threshold values.
*/
#define XFS_QM_HASHSIZE_LOW (PAGE_SIZE / sizeof(xfs_dqhash_t))
@@ -74,7 +62,6 @@ typedef struct xfs_qm {
int qm_dqfrlist_cnt;
atomic_t qm_totaldquots; /* total incore dquots */
uint qm_nrefs; /* file systems with quota on */
- int qm_dqfree_ratio;/* ratio of free to inuse dquots */
kmem_zone_t *qm_dqzone; /* dquot mem-alloc zone */
kmem_zone_t *qm_dqtrxzone; /* t_dqinfo of transactions */
} xfs_qm_t;
@@ -143,7 +130,6 @@ extern int xfs_qm_quotacheck(xfs_mount_t *);
extern int xfs_qm_write_sb_changes(xfs_mount_t *, __int64_t);
/* dquot stuff */
-extern boolean_t xfs_qm_dqalloc_incore(xfs_dquot_t **);
extern int xfs_qm_dqpurge_all(xfs_mount_t *, uint);
extern void xfs_qm_dqrele_all_inodes(xfs_mount_t *, uint);
diff --git a/fs/xfs/xfs_qm_stats.c b/fs/xfs/xfs_qm_stats.c
index 8671a0b..5729ba5 100644
--- a/fs/xfs/xfs_qm_stats.c
+++ b/fs/xfs/xfs_qm_stats.c
@@ -42,9 +42,9 @@ static int xqm_proc_show(struct seq_file *m, void *v)
{
/* maximum; incore; ratio free to inuse; freelist */
seq_printf(m, "%d\t%d\t%d\t%u\n",
- ndquot,
+ 0,
xfs_Gqm? atomic_read(&xfs_Gqm->qm_totaldquots) : 0,
- xfs_Gqm? xfs_Gqm->qm_dqfree_ratio : 0,
+ 0,
xfs_Gqm? xfs_Gqm->qm_dqfrlist_cnt : 0);
return 0;
}
diff --git a/fs/xfs/xfs_qm_syscalls.c b/fs/xfs/xfs_qm_syscalls.c
index eafbcff..711a86e 100644
--- a/fs/xfs/xfs_qm_syscalls.c
+++ b/fs/xfs/xfs_qm_syscalls.c
@@ -813,11 +813,11 @@ xfs_qm_export_dquot(
(XFS_IS_OQUOTA_ENFORCED(mp) &&
(dst->d_flags & (FS_PROJ_QUOTA | FS_GROUP_QUOTA)))) &&
dst->d_id != 0) {
- if (((int) dst->d_bcount >= (int) dst->d_blk_softlimit) &&
+ if (((int) dst->d_bcount > (int) dst->d_blk_softlimit) &&
(dst->d_blk_softlimit > 0)) {
ASSERT(dst->d_btimer != 0);
}
- if (((int) dst->d_icount >= (int) dst->d_ino_softlimit) &&
+ if (((int) dst->d_icount > (int) dst->d_ino_softlimit) &&
(dst->d_ino_softlimit > 0)) {
ASSERT(dst->d_itimer != 0);
}
diff --git a/fs/xfs/xfs_trace.h b/fs/xfs/xfs_trace.h
index 6b6df58..bb134a8 100644
--- a/fs/xfs/xfs_trace.h
+++ b/fs/xfs/xfs_trace.h
@@ -733,11 +733,10 @@ DEFINE_EVENT(xfs_dquot_class, name, \
DEFINE_DQUOT_EVENT(xfs_dqadjust);
DEFINE_DQUOT_EVENT(xfs_dqreclaim_want);
DEFINE_DQUOT_EVENT(xfs_dqreclaim_dirty);
-DEFINE_DQUOT_EVENT(xfs_dqreclaim_unlink);
+DEFINE_DQUOT_EVENT(xfs_dqreclaim_busy);
+DEFINE_DQUOT_EVENT(xfs_dqreclaim_done);
DEFINE_DQUOT_EVENT(xfs_dqattach_found);
DEFINE_DQUOT_EVENT(xfs_dqattach_get);
-DEFINE_DQUOT_EVENT(xfs_dqinit);
-DEFINE_DQUOT_EVENT(xfs_dqreuse);
DEFINE_DQUOT_EVENT(xfs_dqalloc);
DEFINE_DQUOT_EVENT(xfs_dqtobp_read);
DEFINE_DQUOT_EVENT(xfs_dqread);
diff --git a/fs/xfs/xfs_trans.c b/fs/xfs/xfs_trans.c
index 329b06a..7adcdf1 100644
--- a/fs/xfs/xfs_trans.c
+++ b/fs/xfs/xfs_trans.c
@@ -1151,8 +1151,8 @@ xfs_trans_add_item(
{
struct xfs_log_item_desc *lidp;
- ASSERT(lip->li_mountp = tp->t_mountp);
- ASSERT(lip->li_ailp = tp->t_mountp->m_ail);
+ ASSERT(lip->li_mountp == tp->t_mountp);
+ ASSERT(lip->li_ailp == tp->t_mountp->m_ail);
lidp = kmem_zone_zalloc(xfs_log_item_desc_zone, KM_SLEEP | KM_NOFS);
diff --git a/fs/xfs/xfs_trans_dquot.c b/fs/xfs/xfs_trans_dquot.c
index 4d00ee6..c4ba366 100644
--- a/fs/xfs/xfs_trans_dquot.c
+++ b/fs/xfs/xfs_trans_dquot.c
@@ -649,12 +649,12 @@ xfs_trans_dqresv(
* nblks.
*/
if (hardlimit > 0ULL &&
- hardlimit <= nblks + *resbcountp) {
+ hardlimit < nblks + *resbcountp) {
xfs_quota_warn(mp, dqp, QUOTA_NL_BHARDWARN);
goto error_return;
}
if (softlimit > 0ULL &&
- softlimit <= nblks + *resbcountp) {
+ softlimit < nblks + *resbcountp) {
if ((timer != 0 && get_seconds() > timer) ||
(warns != 0 && warns >= warnlimit)) {
xfs_quota_warn(mp, dqp,
@@ -677,11 +677,13 @@ xfs_trans_dqresv(
if (!softlimit)
softlimit = q->qi_isoftlimit;
- if (hardlimit > 0ULL && count >= hardlimit) {
+ if (hardlimit > 0ULL &&
+ hardlimit < ninos + count) {
xfs_quota_warn(mp, dqp, QUOTA_NL_IHARDWARN);
goto error_return;
}
- if (softlimit > 0ULL && count >= softlimit) {
+ if (softlimit > 0ULL &&
+ softlimit < ninos + count) {
if ((timer != 0 && get_seconds() > timer) ||
(warns != 0 && warns >= warnlimit)) {
xfs_quota_warn(mp, dqp,