diff options
| -rw-r--r-- | fs/btrfs/disk-io.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c index b28b314ff7a9..34bcd986f738 100644 --- a/fs/btrfs/disk-io.c +++ b/fs/btrfs/disk-io.c @@ -584,6 +584,7 @@ static int validate_extent_buffer(struct extent_buffer *eb) const u32 csum_size = fs_info->csum_size; u8 found_level; u8 result[BTRFS_CSUM_SIZE]; + const u8 *header_csum; int ret = 0; found_start = btrfs_header_bytenr(eb); @@ -608,15 +609,14 @@ static int validate_extent_buffer(struct extent_buffer *eb) } csum_tree_block(eb, result); + header_csum = page_address(eb->pages[0]) + + get_eb_offset_in_page(eb, offsetof(struct btrfs_header, csum)); - if (memcmp_extent_buffer(eb, result, 0, csum_size)) { - u8 val[BTRFS_CSUM_SIZE] = { 0 }; - - read_extent_buffer(eb, &val, 0, csum_size); + if (memcmp(result, header_csum, csum_size) != 0) { btrfs_warn_rl(fs_info, "checksum verify failed on %llu wanted " CSUM_FMT " found " CSUM_FMT " level %d", eb->start, - CSUM_FMT_VALUE(csum_size, val), + CSUM_FMT_VALUE(csum_size, header_csum), CSUM_FMT_VALUE(csum_size, result), btrfs_header_level(eb)); ret = -EUCLEAN; |