[PATCH 3.16 106/366] Btrfs: bail out on error during replay_dir_deletes

Ben Hutchings
2018-10-14T23:27:32Z

From: Liu Bo <bo.liu@linux.alibaba.com>

commit b98def7ca6e152ee55e36863dddf6f41f12d1dc6 upstream.

If errors were returned by btrfs_next_leaf(), replay_dir_deletes needs
to bail out, otherwise @ret would be forced to be 0 after 'break;' and
the caller won't be aware of it.

Fixes: e02119d5a7b4 ("Btrfs: Add a write ahead tree log to optimize synchronous operations")
Reviewed-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: Liu Bo <bo.liu@linux.alibaba.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
fs/btrfs/tree-log.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)

--- a/fs/btrfs/tree-log.c
+++ b/fs/btrfs/tree-log.c
@@ -1979,8 +1979,10 @@ again:
nritems = btrfs_header_nritems(path->nodes[0]);
if (path->slots[0] >= nritems) {
ret = btrfs_next_leaf(root, path);
- if (ret)
+ if (ret == 1)
break;
+ else if (ret < 0)
+ goto out;
}
btrfs_item_key_to_cpu(path->nodes[0], &found_key,
path->slots[0]);