Commit 3268a246 authored Dec 28, 2012 by Liu Bo Committed by Josef Bacik Jan 14, 2013

Btrfs: reset path lock state to zero



We forgot to reset the path lock state to zero after we unlock the path block,
and this can lead to the ASSERT checker in tree unlock API.

Reported-by: Slava Barinov <rayslava@gmail.com>
Signed-off-by: Liu Bo <bo.li.liu@oracle.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>

parent ac5c9300

fs/btrfs/extent-tree.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -6788,11 +6788,13 @@ static noinline int walk_up_proc(struct btrfs_trans_handle *trans,
		&wc->flags[level]);
		if (ret < 0) {
		btrfs_tree_unlock_rw(eb, path->locks[level]);
		path->locks[level] = 0;
		return ret;
		}
		BUG_ON(wc->refs[level] == 0);
		if (wc->refs[level] == 1) {
		btrfs_tree_unlock_rw(eb, path->locks[level]);
		path->locks[level] = 0;
		return 1;
		}
		}