| Message ID | 5153FB5F.3060400@cn.fujitsu.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
diff --git a/fs/btrfs/file-item.c b/fs/btrfs/file-item.c index 9a447bc..bc89e2f 100644 --- a/fs/btrfs/file-item.c +++ b/fs/btrfs/file-item.c @@ -117,9 +117,11 @@ struct btrfs_csum_item *btrfs_lookup_csum(struct btrfs_trans_handle *trans, csums_in_item = btrfs_item_size_nr(leaf, path->slots[0]); csums_in_item /= csum_size; - if (csum_offset >= csums_in_item) { + if (csum_offset == csums_in_item) { ret = -EFBIG; goto fail; + } else if (csum_offset > csums_in_item) { + goto fail; } } item = btrfs_item_ptr(leaf, path->slots[0], struct btrfs_csum_item);
If we don't find the expected csum item, but find a csum item which is adjacent to the specified extent, we should return -EFBIG, or we should return -ENOENT. But btrfs_lookup_csum() return -EFBIG even the csum item is not adjacent to the specified extent. Fix it. Signed-off-by: Miao Xie <miaox@cn.fujitsu.com> --- fs/btrfs/file-item.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)