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Message-ID: <b1d39dfbe1398192ef1181fc98d6b7e6bedeb649.camel@puri.sm>
Date:   Fri, 02 Jul 2021 10:04:35 +0200
From:   Martin Kepplinger <martin.kepplinger@...i.sm>
To:     Christoph Hellwig <hch@...radead.org>
Cc:     bvanassche@....org, jejb@...ux.ibm.com,
        linux-kernel@...r.kernel.org, linux-pm@...r.kernel.org,
        linux-scsi@...r.kernel.org, martin.petersen@...cle.com,
        kernel@...i.sm, stern@...land.harvard.edu
Subject: Re: [PATCH v5 2/3] scsi: sd: send REQUEST SENSE for
 BLIST_MEDIA_CHANGE devices in runtime_resume()

Am Donnerstag, dem 01.07.2021 um 15:49 +0100 schrieb Christoph Hellwig:
> On Wed, Jun 30, 2021 at 10:44:52AM +0200, Martin Kepplinger wrote:
> > +       struct scsi_disk *sdkp = dev_get_drvdata(dev);
> > +       struct scsi_device *sdp = sdkp->device;
> > +       int timeout, res;
> > +
> > +       timeout = sdp->request_queue->rq_timeout *
> > SD_FLUSH_TIMEOUT_MULTIPLIER;
> 
> Is REQUEST SENSE reqlly a so slow operation on these devices that
> we need to override the timeout?

using SD_TIMEOUT works equally fine for me. Is that what you'd rather
like to see?

Bart, is SD_TIMEOUT equally ok for you? If so, I'll resend with your
reviewed-by.

thank you for reviewing!

                            martin

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