Re: [PATCH RESEND] scsi: scan: retry INQUIRY after timeout

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To: Martin Wilck <mwilck@xxxxxxxx>
Subject: Re: [PATCH RESEND] scsi: scan: retry INQUIRY after timeout
From: Christoph Hellwig <hch@xxxxxx>
Date: Tue, 9 Aug 2022 10:51:40 +0200
Cc: Christoph Hellwig <hch@xxxxxx>, Mike Christie <michael.christie@xxxxxxxxxx>, "Martin K. Petersen" <martin.petersen@xxxxxxxxxx>, linux-scsi@xxxxxxxxxxxxxxx, Hannes Reinecke <hare@xxxxxxx>, Ming Lei <ming.lei@xxxxxxxxxx>, Bart Van Assche <Bart.VanAssche@xxxxxxxxxxx>, Dave Prizer <dave.prizer@xxxxxxx>
In-reply-to: <3fa3ad7169546b1c7e9196474a29e96b719ebe67.camel@suse.com>
User-agent: Mutt/1.5.17 (2007-11-01)

On Tue, Aug 09, 2022 at 10:50:50AM +0200, Martin Wilck wrote:
> Are you suggesting to re-invent REQ_OP_SCSI_{IN,OUT} to distinguish
> SG_IO from kernel-internal passthrough?

No.  We just need a flag in struct scsi_cmnd that controls the retry
behavior for passthrugh commands.

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References:
- [PATCH RESEND] scsi: scan: retry INQUIRY after timeout
  - From: mwilck
- Re: [PATCH RESEND] scsi: scan: retry INQUIRY after timeout
  - From: Mike Christie
- Re: [PATCH RESEND] scsi: scan: retry INQUIRY after timeout
  - From: Christoph Hellwig
- Re: [PATCH RESEND] scsi: scan: retry INQUIRY after timeout
  - From: Martin Wilck

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