linux-kernel - Re: [PATCH v3 05/13] generic/1226: Add atomic write test using fio crc check verifier

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Message-ID: <7fc0f04e-dcec-47a4-b522-eb5a8b90637c@oracle.com>
Date: Wed, 23 Jul 2025 12:33:27 +0100
From: John Garry <john.g.garry@...cle.com>
To: Ojaswin Mujoo <ojaswin@...ux.ibm.com>
Cc: Zorro Lang <zlang@...hat.com>, fstests@...r.kernel.org,
        Ritesh Harjani <ritesh.list@...il.com>, djwong@...nel.org,
        tytso@....edu, linux-xfs@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-ext4@...r.kernel.org
Subject: Re: [PATCH v3 05/13] generic/1226: Add atomic write test using fio
 crc check verifier

On 22/07/2025 09:47, Ojaswin Mujoo wrote:
>>> Yes, I've tested with XFS with software fallback as well. Also, tested
>>> xfs while keeping io size as 16kb so we stress the hw paths too.
>> so is that requirement implemented with the _require_scratch_write_atomic
>> check?
> No, its just something i hardcoded for that particular run. This patch
> doesn't enforce hardware only atomic writes

If we are to test this for XFS then we need to ensure that HW atomics 
are available.

Thanks,
John