diff options
| author | Josef Bacik <josef@redhat.com> | 2012-01-13 12:09:22 -0500 |
|---|---|---|
| committer | Chris Mason <chris.mason@oracle.com> | 2012-01-16 15:29:43 -0500 |
| commit | f248679e86fead40cc78e724c7181d6bec1a2046 (patch) | |
| tree | 88abeee0b2a87c0f0377509525c92d3c9ec15a15 /fs/btrfs/ioctl.c | |
| parent | 8c2a3ca20f6233677ac3222c6506174010eb414f (diff) | |
| download | linux-f248679e86fead40cc78e724c7181d6bec1a2046.tar.bz2 | |
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/ioctl.c')
| -rw-r--r-- | fs/btrfs/ioctl.c | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c index 7fdf22c2dc0d..6834be4c8709 100644 --- a/fs/btrfs/ioctl.c +++ b/fs/btrfs/ioctl.c @@ -868,10 +868,8 @@ static int cluster_pages_for_defrag(struct inode *inode, return 0; file_end = (isize - 1) >> PAGE_CACHE_SHIFT; - mutex_lock(&inode->i_mutex); ret = btrfs_delalloc_reserve_space(inode, num_pages << PAGE_CACHE_SHIFT); - mutex_unlock(&inode->i_mutex); if (ret) return ret; again: |