summaryrefslogtreecommitdiff
path: root/fs
diff options
context:
space:
mode:
Diffstat (limited to 'fs')
-rw-r--r--fs/btrfs/disk-io.c4
-rw-r--r--fs/btrfs/transaction.c14
-rw-r--r--fs/dcache.c10
-rw-r--r--fs/ext4/extents.c40
-rw-r--r--fs/ext4/inode.c13
-rw-r--r--fs/fs-writeback.c31
-rw-r--r--fs/jffs2/compr_rtime.c4
-rw-r--r--fs/jffs2/nodelist.h2
-rw-r--r--fs/jffs2/nodemgmt.c14
-rw-r--r--fs/nfs/nfs3acl.c15
-rw-r--r--fs/nfs/nfs4xdr.c2
-rw-r--r--fs/xfs/xfs_da_btree.c2
12 files changed, 110 insertions, 41 deletions
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index 62176ad..84d590a 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -3246,6 +3246,8 @@ static int barrier_all_devices(struct btrfs_fs_info *info)
/* send down all the barriers */
head = &info->fs_devices->devices;
list_for_each_entry_rcu(dev, head, dev_list) {
+ if (dev->missing)
+ continue;
if (!dev->bdev) {
errors_send++;
continue;
@@ -3260,6 +3262,8 @@ static int barrier_all_devices(struct btrfs_fs_info *info)
/* wait for all the barriers */
list_for_each_entry_rcu(dev, head, dev_list) {
+ if (dev->missing)
+ continue;
if (!dev->bdev) {
errors_wait++;
continue;
diff --git a/fs/btrfs/transaction.c b/fs/btrfs/transaction.c
index b791cfb..25d64e8 100644
--- a/fs/btrfs/transaction.c
+++ b/fs/btrfs/transaction.c
@@ -663,7 +663,8 @@ static int __btrfs_end_transaction(struct btrfs_trans_handle *trans,
int lock = (trans->type != TRANS_JOIN_NOLOCK);
int err = 0;
- if (--trans->use_count) {
+ if (trans->use_count > 1) {
+ trans->use_count--;
trans->block_rsv = trans->orig_rsv;
return 0;
}
@@ -711,17 +712,10 @@ static int __btrfs_end_transaction(struct btrfs_trans_handle *trans,
}
if (lock && ACCESS_ONCE(cur_trans->state) == TRANS_STATE_BLOCKED) {
- if (throttle) {
- /*
- * We may race with somebody else here so end up having
- * to call end_transaction on ourselves again, so inc
- * our use_count.
- */
- trans->use_count++;
+ if (throttle)
return btrfs_commit_transaction(trans, root);
- } else {
+ else
wake_up_process(info->transaction_kthread);
- }
}
if (trans->type & __TRANS_FREEZABLE)
diff --git a/fs/dcache.c b/fs/dcache.c
index 6e84d2ab..2f9d6f3 100644
--- a/fs/dcache.c
+++ b/fs/dcache.c
@@ -2894,6 +2894,7 @@ static int prepend_path(const struct path *path,
restart:
bptr = *buffer;
blen = *buflen;
+ error = 0;
dentry = path->dentry;
vfsmnt = path->mnt;
mnt = real_mount(vfsmnt);
@@ -3122,19 +3123,22 @@ char *simple_dname(struct dentry *dentry, char *buffer, int buflen)
/*
* Write full pathname from the root of the filesystem into the buffer.
*/
-static char *__dentry_path(struct dentry *dentry, char *buf, int buflen)
+static char *__dentry_path(struct dentry *d, char *buf, int buflen)
{
+ struct dentry *dentry;
char *end, *retval;
int len, seq = 0;
int error = 0;
+ if (buflen < 2)
+ goto Elong;
+
rcu_read_lock();
restart:
+ dentry = d;
end = buf + buflen;
len = buflen;
prepend(&end, &len, "\0", 1);
- if (buflen < 1)
- goto Elong;
/* Get '/' right */
retval = end-1;
*retval = '/';
diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c
index e678549..8dd9659 100644
--- a/fs/ext4/extents.c
+++ b/fs/ext4/extents.c
@@ -2616,6 +2616,27 @@ ext4_ext_rm_leaf(handle_t *handle, struct inode *inode,
ex_ee_block = le32_to_cpu(ex->ee_block);
ex_ee_len = ext4_ext_get_actual_len(ex);
+ /*
+ * If we're starting with an extent other than the last one in the
+ * node, we need to see if it shares a cluster with the extent to
+ * the right (towards the end of the file). If its leftmost cluster
+ * is this extent's rightmost cluster and it is not cluster aligned,
+ * we'll mark it as a partial that is not to be deallocated.
+ */
+
+ if (ex != EXT_LAST_EXTENT(eh)) {
+ ext4_fsblk_t current_pblk, right_pblk;
+ long long current_cluster, right_cluster;
+
+ current_pblk = ext4_ext_pblock(ex) + ex_ee_len - 1;
+ current_cluster = (long long)EXT4_B2C(sbi, current_pblk);
+ right_pblk = ext4_ext_pblock(ex + 1);
+ right_cluster = (long long)EXT4_B2C(sbi, right_pblk);
+ if (current_cluster == right_cluster &&
+ EXT4_PBLK_COFF(sbi, right_pblk))
+ *partial_cluster = -right_cluster;
+ }
+
trace_ext4_ext_rm_leaf(inode, start, ex, *partial_cluster);
while (ex >= EXT_FIRST_EXTENT(eh) &&
@@ -2741,10 +2762,15 @@ ext4_ext_rm_leaf(handle_t *handle, struct inode *inode,
err = ext4_ext_correct_indexes(handle, inode, path);
/*
- * Free the partial cluster only if the current extent does not
- * reference it. Otherwise we might free used cluster.
+ * If there's a partial cluster and at least one extent remains in
+ * the leaf, free the partial cluster if it isn't shared with the
+ * current extent. If there's a partial cluster and no extents
+ * remain in the leaf, it can't be freed here. It can only be
+ * freed when it's possible to determine if it's not shared with
+ * any other extent - when the next leaf is processed or when space
+ * removal is complete.
*/
- if (*partial_cluster > 0 &&
+ if (*partial_cluster > 0 && eh->eh_entries &&
(EXT4_B2C(sbi, ext4_ext_pblock(ex) + ex_ee_len - 1) !=
*partial_cluster)) {
int flags = get_default_free_blocks_flags(inode);
@@ -4159,7 +4185,7 @@ int ext4_ext_map_blocks(handle_t *handle, struct inode *inode,
struct ext4_extent newex, *ex, *ex2;
struct ext4_sb_info *sbi = EXT4_SB(inode->i_sb);
ext4_fsblk_t newblock = 0;
- int free_on_err = 0, err = 0, depth;
+ int free_on_err = 0, err = 0, depth, ret;
unsigned int allocated = 0, offset = 0;
unsigned int allocated_clusters = 0;
struct ext4_allocation_request ar;
@@ -4220,9 +4246,13 @@ int ext4_ext_map_blocks(handle_t *handle, struct inode *inode,
if (!ext4_ext_is_uninitialized(ex))
goto out;
- allocated = ext4_ext_handle_uninitialized_extents(
+ ret = ext4_ext_handle_uninitialized_extents(
handle, inode, map, path, flags,
allocated, newblock);
+ if (ret < 0)
+ err = ret;
+ else
+ allocated = ret;
goto out3;
}
}
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index 786bf07..f173ef1 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -4447,7 +4447,12 @@ int ext4_write_inode(struct inode *inode, struct writeback_control *wbc)
return -EIO;
}
- if (wbc->sync_mode != WB_SYNC_ALL)
+ /*
+ * No need to force transaction in WB_SYNC_NONE mode. Also
+ * ext4_sync_fs() will force the commit after everything is
+ * written.
+ */
+ if (wbc->sync_mode != WB_SYNC_ALL || wbc->for_sync)
return 0;
err = ext4_force_commit(inode->i_sb);
@@ -4457,7 +4462,11 @@ int ext4_write_inode(struct inode *inode, struct writeback_control *wbc)
err = __ext4_get_inode_loc(inode, &iloc, 0);
if (err)
return err;
- if (wbc->sync_mode == WB_SYNC_ALL)
+ /*
+ * sync(2) will flush the whole buffer cache. No need to do
+ * it here separately for each inode.
+ */
+ if (wbc->sync_mode == WB_SYNC_ALL && !wbc->for_sync)
sync_dirty_buffer(iloc.bh);
if (buffer_req(iloc.bh) && !buffer_uptodate(iloc.bh)) {
EXT4_ERROR_INODE_BLOCK(inode, iloc.bh->b_blocknr,
diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c
index 3595180..5bbec31 100644
--- a/fs/fs-writeback.c
+++ b/fs/fs-writeback.c
@@ -88,16 +88,29 @@ static inline struct inode *wb_inode(struct list_head *head)
#define CREATE_TRACE_POINTS
#include <trace/events/writeback.h>
+static void bdi_wakeup_thread(struct backing_dev_info *bdi)
+{
+ spin_lock_bh(&bdi->wb_lock);
+ if (test_bit(BDI_registered, &bdi->state))
+ mod_delayed_work(bdi_wq, &bdi->wb.dwork, 0);
+ spin_unlock_bh(&bdi->wb_lock);
+}
+
static void bdi_queue_work(struct backing_dev_info *bdi,
struct wb_writeback_work *work)
{
trace_writeback_queue(bdi, work);
spin_lock_bh(&bdi->wb_lock);
+ if (!test_bit(BDI_registered, &bdi->state)) {
+ if (work->done)
+ complete(work->done);
+ goto out_unlock;
+ }
list_add_tail(&work->list, &bdi->work_list);
- spin_unlock_bh(&bdi->wb_lock);
-
mod_delayed_work(bdi_wq, &bdi->wb.dwork, 0);
+out_unlock:
+ spin_unlock_bh(&bdi->wb_lock);
}
static void
@@ -113,7 +126,7 @@ __bdi_start_writeback(struct backing_dev_info *bdi, long nr_pages,
work = kzalloc(sizeof(*work), GFP_ATOMIC);
if (!work) {
trace_writeback_nowork(bdi);
- mod_delayed_work(bdi_wq, &bdi->wb.dwork, 0);
+ bdi_wakeup_thread(bdi);
return;
}
@@ -160,7 +173,7 @@ void bdi_start_background_writeback(struct backing_dev_info *bdi)
* writeback as soon as there is no other work to do.
*/
trace_writeback_wake_background(bdi);
- mod_delayed_work(bdi_wq, &bdi->wb.dwork, 0);
+ bdi_wakeup_thread(bdi);
}
/*
@@ -1016,7 +1029,7 @@ void bdi_writeback_workfn(struct work_struct *work)
current->flags |= PF_SWAPWRITE;
if (likely(!current_is_workqueue_rescuer() ||
- list_empty(&bdi->bdi_list))) {
+ !test_bit(BDI_registered, &bdi->state))) {
/*
* The normal path. Keep writing back @bdi until its
* work_list is empty. Note that this path is also taken
@@ -1038,10 +1051,10 @@ void bdi_writeback_workfn(struct work_struct *work)
trace_writeback_pages_written(pages_written);
}
- if (!list_empty(&bdi->work_list) ||
- (wb_has_dirty_io(wb) && dirty_writeback_interval))
- queue_delayed_work(bdi_wq, &wb->dwork,
- msecs_to_jiffies(dirty_writeback_interval * 10));
+ if (!list_empty(&bdi->work_list))
+ mod_delayed_work(bdi_wq, &wb->dwork, 0);
+ else if (wb_has_dirty_io(wb) && dirty_writeback_interval)
+ bdi_wakeup_thread_delayed(bdi);
current->flags &= ~PF_SWAPWRITE;
}
diff --git a/fs/jffs2/compr_rtime.c b/fs/jffs2/compr_rtime.c
index 16a5047..406d9cc 100644
--- a/fs/jffs2/compr_rtime.c
+++ b/fs/jffs2/compr_rtime.c
@@ -33,7 +33,7 @@ static int jffs2_rtime_compress(unsigned char *data_in,
unsigned char *cpage_out,
uint32_t *sourcelen, uint32_t *dstlen)
{
- short positions[256];
+ unsigned short positions[256];
int outpos = 0;
int pos=0;
@@ -74,7 +74,7 @@ static int jffs2_rtime_decompress(unsigned char *data_in,
unsigned char *cpage_out,
uint32_t srclen, uint32_t destlen)
{
- short positions[256];
+ unsigned short positions[256];
int outpos = 0;
int pos=0;
diff --git a/fs/jffs2/nodelist.h b/fs/jffs2/nodelist.h
index e4619b0..fa35ff7 100644
--- a/fs/jffs2/nodelist.h
+++ b/fs/jffs2/nodelist.h
@@ -231,7 +231,7 @@ struct jffs2_tmp_dnode_info
uint32_t version;
uint32_t data_crc;
uint32_t partial_crc;
- uint16_t csize;
+ uint32_t csize;
uint16_t overlapped;
};
diff --git a/fs/jffs2/nodemgmt.c b/fs/jffs2/nodemgmt.c
index 0331072..b6bd4af 100644
--- a/fs/jffs2/nodemgmt.c
+++ b/fs/jffs2/nodemgmt.c
@@ -179,6 +179,7 @@ int jffs2_reserve_space(struct jffs2_sb_info *c, uint32_t minsize,
spin_unlock(&c->erase_completion_lock);
schedule();
+ remove_wait_queue(&c->erase_wait, &wait);
} else
spin_unlock(&c->erase_completion_lock);
} else if (ret)
@@ -211,20 +212,25 @@ out:
int jffs2_reserve_space_gc(struct jffs2_sb_info *c, uint32_t minsize,
uint32_t *len, uint32_t sumsize)
{
- int ret = -EAGAIN;
+ int ret;
minsize = PAD(minsize);
jffs2_dbg(1, "%s(): Requested 0x%x bytes\n", __func__, minsize);
- spin_lock(&c->erase_completion_lock);
- while(ret == -EAGAIN) {
+ while (true) {
+ spin_lock(&c->erase_completion_lock);
ret = jffs2_do_reserve_space(c, minsize, len, sumsize);
if (ret) {
jffs2_dbg(1, "%s(): looping, ret is %d\n",
__func__, ret);
}
+ spin_unlock(&c->erase_completion_lock);
+
+ if (ret == -EAGAIN)
+ cond_resched();
+ else
+ break;
}
- spin_unlock(&c->erase_completion_lock);
if (!ret)
ret = jffs2_prealloc_raw_node_refs(c, c->nextblock, 1);
diff --git a/fs/nfs/nfs3acl.c b/fs/nfs/nfs3acl.c
index 4a1aafb..4612291 100644
--- a/fs/nfs/nfs3acl.c
+++ b/fs/nfs/nfs3acl.c
@@ -289,8 +289,8 @@ getout:
return acl;
}
-static int nfs3_proc_setacls(struct inode *inode, struct posix_acl *acl,
- struct posix_acl *dfacl)
+static int __nfs3_proc_setacls(struct inode *inode, struct posix_acl *acl,
+ struct posix_acl *dfacl)
{
struct nfs_server *server = NFS_SERVER(inode);
struct nfs_fattr *fattr;
@@ -373,6 +373,15 @@ out:
return status;
}
+int nfs3_proc_setacls(struct inode *inode, struct posix_acl *acl,
+ struct posix_acl *dfacl)
+{
+ int ret;
+ ret = __nfs3_proc_setacls(inode, acl, dfacl);
+ return (ret == -EOPNOTSUPP) ? 0 : ret;
+
+}
+
int nfs3_proc_setacl(struct inode *inode, int type, struct posix_acl *acl)
{
struct posix_acl *alloc = NULL, *dfacl = NULL;
@@ -406,7 +415,7 @@ int nfs3_proc_setacl(struct inode *inode, int type, struct posix_acl *acl)
if (IS_ERR(alloc))
goto fail;
}
- status = nfs3_proc_setacls(inode, acl, dfacl);
+ status = __nfs3_proc_setacls(inode, acl, dfacl);
posix_acl_release(alloc);
return status;
diff --git a/fs/nfs/nfs4xdr.c b/fs/nfs/nfs4xdr.c
index b2f842d..1c2beb1 100644
--- a/fs/nfs/nfs4xdr.c
+++ b/fs/nfs/nfs4xdr.c
@@ -3405,7 +3405,7 @@ static int decode_attr_aclsupport(struct xdr_stream *xdr, uint32_t *bitmap, uint
{
__be32 *p;
- *res = ACL4_SUPPORT_ALLOW_ACL|ACL4_SUPPORT_DENY_ACL;
+ *res = 0;
if (unlikely(bitmap[0] & (FATTR4_WORD0_ACLSUPPORT - 1U)))
return -EIO;
if (likely(bitmap[0] & FATTR4_WORD0_ACLSUPPORT)) {
diff --git a/fs/xfs/xfs_da_btree.c b/fs/xfs/xfs_da_btree.c
index 20bf8e8..a6fcbd2 100644
--- a/fs/xfs/xfs_da_btree.c
+++ b/fs/xfs/xfs_da_btree.c
@@ -1335,7 +1335,7 @@ xfs_da3_fixhashpath(
node = blk->bp->b_addr;
xfs_da3_node_hdr_from_disk(&nodehdr, node);
btree = xfs_da3_node_tree_p(node);
- if (be32_to_cpu(btree->hashval) == lasthash)
+ if (be32_to_cpu(btree[blk->index].hashval) == lasthash)
break;
blk->hashval = lasthash;
btree[blk->index].hashval = cpu_to_be32(lasthash);
generated by cgit v0.10.2 at 2024-11-06 01:42:10 (GMT)