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| author | Miao Xie <miaox@cn.fujitsu.com> | 2013-03-28 08:12:15 +0000 |
|---|---|---|
| committer | Josef Bacik <jbacik@fusionio.com> | 2013-03-28 09:51:31 -0400 |
| commit | 82d130ff390be67d980d8b6f39e921c0b1d8d8e0 (patch) | |
| tree | b9ad04b14f74ce072624b1f8a5ece4b9889187e1 | |
| parent | 39847c4d3d91f487f9ab3d083ee5d0f8419f105c (diff) | |
| download | linux-exynos-82d130ff390be67d980d8b6f39e921c0b1d8d8e0.tar.gz linux-exynos-82d130ff390be67d980d8b6f39e921c0b1d8d8e0.tar.bz2 linux-exynos-82d130ff390be67d980d8b6f39e921c0b1d8d8e0.zip | |
Btrfs: fix wrong return value of btrfs_lookup_csum()
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>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
| -rw-r--r-- | fs/btrfs/file-item.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/fs/btrfs/file-item.c b/fs/btrfs/file-item.c index b7e529d2860f..c4628a201cb3 100644 --- a/fs/btrfs/file-item.c +++ b/fs/btrfs/file-item.c @@ -118,9 +118,11 @@ 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); |