linux-ext4 - Re: [PATCH v2 4/6] ext4/021: check _scratch_mkfs

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Date:   Wed, 9 Feb 2022 14:32:01 -0800
From:   "Darrick J. Wong" <djwong@...nel.org>
To:     Shin'ichiro Kawasaki <shinichiro.kawasaki@....com>
Cc:     fstests@...r.kernel.org, linux-btrfs@...r.kernel.org,
        linux-xfs@...r.kernel.org, linux-ext4@...r.kernel.org,
        Naohiro Aota <naohiro.aota@....com>,
        Johannes Thumshirn <johannes.thumshirn@....com>,
        Damien Le Moal <damien.lemoal@...nsource.wdc.com>
Subject: Re: [PATCH v2 4/6] ext4/021: check _scratch_mkfs_sized return code

On Wed, Feb 09, 2022 at 09:33:03PM +0900, Shin'ichiro Kawasaki wrote:
> The test cases ext4/021 calls _scratch_mkfs before _scratch_mkfs_sized,
> and does not check return code of _scratch_mkfs_sized. Even if
> _scratch_mkfs_sized failed, _scratch_mount after it cannot detect the
> sized mkfs failure because _scratch_mkfs already created a file system
> on the device. This results in unexpected test condition.
> 
> To avoid the unexpected test condition, check return code of
> _scratch_mkfs_sized.
> 
> Suggested-by: Naohiro Aota <naohiro.aota@....com>
> Signed-off-by: Shin'ichiro Kawasaki <shinichiro.kawasaki@....com>

LGTM
Reviewed-by: Darrick J. Wong <djwong@...nel.org>

--D

> ---
>  tests/ext4/021 | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/tests/ext4/021 b/tests/ext4/021
> index 62768c60..a9277abf 100755
> --- a/tests/ext4/021
> +++ b/tests/ext4/021
> @@ -24,7 +24,7 @@ _scratch_unmount
>  
>  # With 4k block size, this amounts to 10M FS instance.
>  fssize=$((2560 * $blocksize))
> -_scratch_mkfs_sized $fssize >> $seqres.full 2>&1
> +_scratch_mkfs_sized $fssize >> $seqres.full 2>&1 || _fail "mkfs failed"
>  _require_metadata_journaling $SCRATCH_DEV
>  
>  offset=0
> -- 
> 2.34.1
>