Re: [PATCH v3 01/18] block: introduce duration-limits priority class

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To: Bart Van Assche <bvanassche@xxxxxxx>
Subject: Re: [PATCH v3 01/18] block: introduce duration-limits priority class
From: Christoph Hellwig <hch@xxxxxx>
Date: Wed, 25 Jan 2023 07:33:54 +0100
Cc: Damien Le Moal <damien.lemoal@xxxxxxxxxxxxxxxxxx>, Niklas Cassel <niklas.cassel@xxxxxxx>, Paolo Valente <paolo.valente@xxxxxxxxxx>, Jens Axboe <axboe@xxxxxxxxx>, Christoph Hellwig <hch@xxxxxx>, Hannes Reinecke <hare@xxxxxxx>, linux-scsi@xxxxxxxxxxxxxxx, linux-ide@xxxxxxxxxxxxxxx, linux-block@xxxxxxxxxxxxxxx
In-reply-to: <873e0213-94b5-0d81-a8aa-4671241e198c@acm.org>
User-agent: Mutt/1.5.17 (2007-11-01)

On Tue, Jan 24, 2023 at 02:43:24PM -0800, Bart Van Assche wrote:
> What if a device that supports I/O priorities (e.g. an NVMe device that 
> supports configuring the SQ priority)

NVMe does not have any I/O priorities, it only has a very limited
priority scheme for queue arbitration.

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References:
- [PATCH v3 00/18] Add Command Duration Limits support
  - From: Niklas Cassel
- [PATCH v3 01/18] block: introduce duration-limits priority class
  - From: Niklas Cassel
- Re: [PATCH v3 01/18] block: introduce duration-limits priority class
  - From: Bart Van Assche
- Re: [PATCH v3 01/18] block: introduce duration-limits priority class
  - From: Damien Le Moal
- Re: [PATCH v3 01/18] block: introduce duration-limits priority class
  - From: Bart Van Assche

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