diff options
| author | Josef Bacik <jbacik@fusionio.com> | 2013-10-28 09:13:25 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-12-20 07:49:09 -0800 |
| commit | 486d1e163be2d32150a053c7ac3fc853ba6fd998 (patch) | |
| tree | 88818a5e4914a70c168f476dae55141aacfc34e1 | |
| parent | 222ae8bfd4c3796335d2aa1aa6a4dbeccb497b00 (diff) | |
Btrfs: take ordered root lock when removing ordered operations inode
commit 93858769172c4e3678917810e9d5de360eb991cc upstream.
A user reported a list corruption warning from btrfs_remove_ordered_extent, it
is because we aren't taking the ordered_root_lock when we remove the inode from
the ordered operations list. Thanks,
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | fs/btrfs/ordered-data.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/btrfs/ordered-data.c b/fs/btrfs/ordered-data.c index c702cb62f78a..bda1cd84ee5f 100644 --- a/fs/btrfs/ordered-data.c +++ b/fs/btrfs/ordered-data.c @@ -537,7 +537,9 @@ void btrfs_remove_ordered_extent(struct inode *inode, */ if (RB_EMPTY_ROOT(&tree->tree) && !mapping_tagged(inode->i_mapping, PAGECACHE_TAG_DIRTY)) { + spin_lock(&root->fs_info->ordered_root_lock); list_del_init(&BTRFS_I(inode)->ordered_operations); + spin_unlock(&root->fs_info->ordered_root_lock); } if (!root->nr_ordered_extents) { |