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Date:   Wed, 25 Jan 2023 07:33:54 +0100
From:   Christoph Hellwig <hch@lst.de>
To:     Bart Van Assche <bvanassche@acm.org>
Cc:     Damien Le Moal <damien.lemoal@opensource.wdc.com>,
        Niklas Cassel <niklas.cassel@wdc.com>,
        Paolo Valente <paolo.valente@linaro.org>,
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Subject: Re: [PATCH v3 01/18] block: introduce duration-limits priority
 class
Message-ID: <20230125063354.GA1766@lst.de>
References: <20230124190308.127318-1-niklas.cassel@wdc.com> <20230124190308.127318-2-niklas.cassel@wdc.com> <bd0ce7ad-cf9e-a647-9b1e-cb36e7bbe30f@acm.org> <731aeacc-74c0-396b-efa0-f9ae950566d8@opensource.wdc.com> <873e0213-94b5-0d81-a8aa-4671241e198c@acm.org>
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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.