From: Josef Bacik <josef@toxicpanda.com>
Date: Fri, 12 Mar 2021 15:25:23 -0500
Subject: btrfs: handle btrfs_search_slot failure in replace_path
Git-commit: 0e9873e2fe43ea098e70c30c996ebb90a22cce43
Patch-mainline: v5.13-rc1
References: bsc#1187833
The search can fail for various reasons, in case of errors there's no
cleanup to be done so we can pass the error to the caller, adjusting for
the case where the key is not found and search slot returns 1.
Reviewed-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Reviewed-by: David Sterba <dsterba@suse.com>
[ update changelog ]
Signed-off-by: David Sterba <dsterba@suse.com>
Acked-by: Nikolay Borisov <nborisov@suse.com>
---
fs/btrfs/relocation.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/fs/btrfs/relocation.c b/fs/btrfs/relocation.c
index f1702157532a..b62f5e46cf34 100644
--- a/fs/btrfs/relocation.c
+++ b/fs/btrfs/relocation.c
@@ -1323,7 +1323,11 @@ int replace_path(struct btrfs_trans_handle *trans, struct reloc_control *rc,
path->lowest_level = level;
ret = btrfs_search_slot(trans, src, &key, path, 0, 1);
path->lowest_level = 0;
- BUG_ON(ret);
+ if (ret) {
+ if (ret > 0)
+ ret = -ENOENT;
+ break;
+ }
/*
* Info qgroup to trace both subtrees.