btrfs: remove junk sb_dirt change

BTRFS does not define a '->write_super()' method, so it should
not mark its superblock as dirty. This looks like some left-over.

Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Acked-by: Chris Mason <chris.mason@oracle.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 2c54f04a0bf5e408f7e3fb0807a79568bf8ebcb0..8976c3343a96aba71b508e54cf395ca75e0edaa2 100644 (file)
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -2938,7 +2938,6 @@ int btrfs_unlink_subvol(struct btrfs_trans_handle *trans,
        dir->i_mtime = dir->i_ctime = CURRENT_TIME;
        ret = btrfs_update_inode(trans, root, dir);
        BUG_ON(ret);
-       dir->i_sb->s_dirt = 1;
 
        btrfs_free_path(path);
        return 0;