diff options
| author | Marcos Paulo de Souza <[email protected]> | 2021-08-02 09:34:00 -0300 |
|---|---|---|
| committer | David Sterba <[email protected]> | 2021-08-23 13:19:15 +0200 |
| commit | 3736127a3aa805602b7a2ad60ec9cfce68065fbb (patch) | |
| tree | c16788f334528d3ae9ad73ab37d6f5783a5043a9 | |
| parent | 8be2ba2e0e11ade6ab96d8887dbb12abbd3540f4 (diff) | |
btrfs: tree-log: check btrfs_lookup_data_extent return value
Function btrfs_lookup_data_extent calls btrfs_search_slot to verify if
the EXTENT_ITEM exists in the extent tree. btrfs_search_slot can return
values bellow zero if an error happened.
Function replay_one_extent currently checks if the search found
something (0 returned) and increments the reference, and if not, it
seems to evaluate as 'not found'.
Fix the condition by checking if the value was bellow zero and return
early.
Reviewed-by: Filipe Manana <[email protected]>
Signed-off-by: Marcos Paulo de Souza <[email protected]>
Reviewed-by: David Sterba <[email protected]>
Signed-off-by: David Sterba <[email protected]>
| -rw-r--r-- | fs/btrfs/tree-log.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/fs/btrfs/tree-log.c b/fs/btrfs/tree-log.c index a1aaa1b8bd5c..f7efc26aa82a 100644 --- a/fs/btrfs/tree-log.c +++ b/fs/btrfs/tree-log.c @@ -753,7 +753,9 @@ static noinline int replay_one_extent(struct btrfs_trans_handle *trans, */ ret = btrfs_lookup_data_extent(fs_info, ins.objectid, ins.offset); - if (ret == 0) { + if (ret < 0) { + goto out; + } else if (ret == 0) { btrfs_init_generic_ref(&ref, BTRFS_ADD_DELAYED_REF, ins.objectid, ins.offset, 0); |