From: Niklas Cassel <cassel@kernel.org>
To: Damien Le Moal <dlemoal@kernel.org>
Cc: linux-ide@vger.kernel.org, linux-scsi@vger.kernel.org,
"Martin K . Petersen" <martin.petersen@oracle.com>,
Igor Pylypiv <ipylypiv@google.com>,
John Garry <john.g.garry@oracle.com>,
Jason Yan <yanaijie@huawei.com>
Subject: Re: [PATCH v7 1/2] ata: libata-scsi: terminate deferred commands on time out
Date: Tue, 28 Jul 2026 12:07:18 +0200 [thread overview]
Message-ID: <amh_ViYTvYXVZs6U@ryzen> (raw)
In-Reply-To: <b5ca79f0-cf1d-4a44-98fb-cb470f01a102@kernel.org>
On Tue, Jul 28, 2026 at 12:31:45PM +0900, Damien Le Moal wrote:
> On 7/28/26 05:40, Niklas Cassel wrote:
> > Might be a quite subtle difference, but I think it is much clearer if you
> > would instead write this as:
> >
> > if (timedout_scmd && qc->scsicmd == timedout_scmd) {
> > host_byte = DID_TIME_OUT;
> > action = SCSI_EH_DONE;
> > } else {
> > host_byte = DID_REQUEUE;
> > }
> > ata_scsi_qc_done(qc, true, host_byte << 16);
> >
> >
> > Because that more clearly highlights the special case.
> > (And is more in line with my suggested comment, so it also makes it easier
> > to corroborate the comment with the actual code.)
> >
> > The special case is if timedout_scmd is non-NULL AND is the deferred QC.
> >
> > For all other cases, if timedout_scmd is non-NULL but is not the deferred
> > QC, or if the timedout_cmd is NULL, we want to requeue.
>
> I added all your suggested comments and code changes and added the patches to
> for-7.2-fixes.
Looks good, feel free to add:
Reviewed-by: Niklas Cassel <cassel@kernel.org>
On the two patches in this series.
Kind regards,
Niklas
next prev parent reply other threads:[~2026-07-28 10:07 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-07-21 6:40 [PATCH v7 0/2] fixup handling of timeouts with deferred QCs Damien Le Moal
2026-07-21 6:40 ` [PATCH v7 1/2] ata: libata-scsi: terminate deferred commands on time out Damien Le Moal
2026-07-21 7:00 ` sashiko-bot
2026-07-21 7:43 ` Damien Le Moal
2026-07-23 14:33 ` Igor Pylypiv
2026-07-27 18:17 ` Niklas Cassel
2026-07-27 19:35 ` Niklas Cassel
2026-07-27 20:40 ` Niklas Cassel
2026-07-28 3:31 ` Damien Le Moal
2026-07-28 10:07 ` Niklas Cassel [this message]
2026-07-21 6:40 ` [PATCH v7 2/2] scsi: libsas: " Damien Le Moal
2026-07-23 4:20 ` [PATCH v7 0/2] fixup handling of timeouts with deferred QCs Igor Pylypiv
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