On 2018/10/23 下午5:41, Su Yue wrote:
> Add support to check unaligned disk_bytenr for extent_data.
>
> Signed-off-by: Su Yue <suy.fnst@xxxxxxxxxxxxxx>
Reviewed-by: Qu Wenruo <wqu@xxxxxxxx>
Thanks,
Qu
> ---
> check/mode-lowmem.c | 9 ++++++++-
> 1 file changed, 8 insertions(+), 1 deletion(-)
>
> diff --git a/check/mode-lowmem.c b/check/mode-lowmem.c
> index 35fe1adf58e6..e8a2e825c0f3 100644
> --- a/check/mode-lowmem.c
> +++ b/check/mode-lowmem.c
> @@ -3103,7 +3103,14 @@ static int check_extent_data_item(struct btrfs_root *root,
> extent_num_bytes = btrfs_file_extent_num_bytes(eb, fi);
> offset = btrfs_file_extent_offset(eb, fi);
>
> - /* Check unaligned disk_num_bytes and num_bytes */
> + /* Check unaligned disk_bytenr, disk_num_bytes and num_bytes */
> + if (!IS_ALIGNED(disk_bytenr, root->fs_info->sectorsize)) {
> + error(
> +"file extent [%llu, %llu] has unaligned disk bytenr: %llu, should be aligned to %u",
> + fi_key.objectid, fi_key.offset, disk_bytenr,
> + root->fs_info->sectorsize);
> + err |= BYTES_UNALIGNED;
> + }
> if (!IS_ALIGNED(disk_num_bytes, root->fs_info->sectorsize)) {
> error(
> "file extent [%llu, %llu] has unaligned disk num bytes: %llu, should be aligned to %u",
>
