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authorJosef Bacik <josef@redhat.com>2012-01-13 12:09:22 -0500
committerChris Mason <chris.mason@oracle.com>2012-01-16 15:29:43 -0500
commitf248679e86fead40cc78e724c7181d6bec1a2046 (patch)
tree88abeee0b2a87c0f0377509525c92d3c9ec15a15 /fs/btrfs/relocation.c
parent8c2a3ca20f6233677ac3222c6506174010eb414f (diff)
Btrfs: add a delalloc mutex to inodes for delalloc reservations
I was using i_mutex for this, but we're getting bogus lockdep warnings by doing that and theres no real way to get rid of those, so just stop using i_mutex to protect delalloc metadata reservations and use a delalloc mutex instead. This shouldn't be contended often at all, only if you are writing and mmap writing to the file at the same time. Thanks, Signed-off-by: Josef Bacik <josef@redhat.com>
Diffstat (limited to 'fs/btrfs/relocation.c')
-rw-r--r--fs/btrfs/relocation.c2
1 files changed, 0 insertions, 2 deletions
diff --git a/fs/btrfs/relocation.c b/fs/btrfs/relocation.c
index efe9f792544..8c1aae2c845 100644
--- a/fs/btrfs/relocation.c
+++ b/fs/btrfs/relocation.c
@@ -2949,9 +2949,7 @@ static int relocate_file_extent_cluster(struct inode *inode,
index = (cluster->start - offset) >> PAGE_CACHE_SHIFT;
last_index = (cluster->end - offset) >> PAGE_CACHE_SHIFT;
while (index <= last_index) {
- mutex_lock(&inode->i_mutex);
ret = btrfs_delalloc_reserve_metadata(inode, PAGE_CACHE_SIZE);
- mutex_unlock(&inode->i_mutex);
if (ret)
goto out;