Re: [PATCH 5/9] btrfs/143: use common read repair helpers

[Qu Wenruo <quwenruo.btrfs@gmx.com>]

On 2022/5/24 15:18, Christoph Hellwig wrote:
> Use the common helpers to find the btrfs logical address and to read from
> a specific mirror.
>
> Signed-off-by: Christoph Hellwig <hch@lst.de>


Reviewed-by: Qu Wenruo <wqu@suse.com>

Thanks,
Qu

> ---
>   tests/btrfs/143 | 10 +++-------
>   1 file changed, 3 insertions(+), 7 deletions(-)
>
> diff --git a/tests/btrfs/143 b/tests/btrfs/143
> index 71db861d..b6ff2a42 100755
> --- a/tests/btrfs/143
> +++ b/tests/btrfs/143
> @@ -34,7 +34,6 @@ _require_scratch_dev_pool 2
>   _require_dm_target dust
>
>   _require_btrfs_command inspect-internal dump-tree
> -_require_command "$FILEFRAG_PROG" filefrag
>
>   _scratch_dev_pool_get 2
>   # step 1, create a raid1 btrfs which contains one 128k file.
> @@ -53,8 +52,7 @@ $XFS_IO_PROG -f -d -c "pwrite -S 0xaa -b 128K 0 128K" "$SCRATCH_MNT/foobar" |\
>   # step 2, corrupt the first 64k of stripe #1
>   echo "step 2......corrupt file extent" >>$seqres.full
>
> -${FILEFRAG_PROG} -v $SCRATCH_MNT/foobar >> $seqres.full
> -logical_in_btrfs=`${FILEFRAG_PROG} -v $SCRATCH_MNT/foobar | _filter_filefrag | cut -d '#' -f 1`
> +logical_in_btrfs=$(_btrfs_get_first_logical $SCRATCH_MNT/foobar)
>   echo "Logical offset is $logical_in_btrfs" >>$seqres.full
>   _scratch_unmount
>
> @@ -74,10 +72,8 @@ echo "step 3......repair the bad copy" >>$seqres.full
>
>   $DMSETUP_PROG message dust-test 0 addbadblock $((physical / 512))
>   $DMSETUP_PROG message dust-test 0 enable
> -while [[ -z $( (( BASHPID % 2 == stripe )) &&
> -	       exec $XFS_IO_PROG -c "pread -b 128K 0 128K" "$SCRATCH_MNT/foobar") ]]; do
> -	:
> -done
> +
> +_btrfs_buffered_read_on_mirror $stripe 2 "$SCRATCH_MNT/foobar" 0 128K
>
>   _cleanup_dust
>