Re: [PATCH v3] fstests: test premature ENOSPC in zoned garbage collection

On 4/15/26 7:22 AM, Christoph Hellwig wrote:
> On Tue, Apr 14, 2026 at 04:33:41PM +0200, Johannes Thumshirn wrote:
>> This test stresses garbage collection in zoned file systems by
>> constantly overwriting the same file. It is inspired by a reproducer for
>> a btrfs bugifx.
> s/bugifx/bugfix/
Fixed
> I tried this on XFS, and it doesn't work as XFS uses SCRATCH_RTDEV for
> zoned data.  Manually hacking in SCRATCH_RTDEV makes it work, but that
> will break btrfs.  Maybe you can add a little:
>
> if [ -b "$SCRATCH_RTDEV" ];
> 	zoned_dev=$SCRATCH_RTDEV
> else
> 	zoned_dev=$SCRATCH_DEV
> endif
>
> end then use $zoned_dev to make it portable?
Sure, can I still use _scratch_mkfs_sized for XFS?