set_extent_bits may fail, return the result in add_excluded_extent.
Signed-off-by: Gu Jinxiang <gujx@xxxxxxxxxxxxxx>
Changelog:
v2-v1:
1.remove goto to make the function run linearly.
2.change commit description not pointing out the failure detail,
since set_extent_bits's failure type may be added.
---
fs/btrfs/extent-tree.c | 10 +++++++---
1 file changed, 7 insertions(+), 3 deletions(-)
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index 75cfb80d2551..65ef3456fa62 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -215,11 +215,15 @@ static int add_excluded_extent(struct btrfs_fs_info *fs_info,
u64 start, u64 num_bytes)
{
u64 end = start + num_bytes - 1;
- set_extent_bits(&fs_info->freed_extents[0],
+ int ret = 0;
+
+ ret = set_extent_bits(&fs_info->freed_extents[0],
start, end, EXTENT_UPTODATE);
- set_extent_bits(&fs_info->freed_extents[1],
+ if (ret)
+ return ret;
+ ret = set_extent_bits(&fs_info->freed_extents[1],
start, end, EXTENT_UPTODATE);
- return 0;
+ return ret;
}
static void free_excluded_extents(struct btrfs_fs_info *fs_info,
--
1.9.1
--
To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
