Re: [PATCH v5 1/3] blk-mq: introduce blk_mq_set_request_complete

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On 2/4/21 8:30 AM, Christoph Hellwig wrote:
> On Thu, Feb 04, 2021 at 08:27:46AM -0700, Jens Axboe wrote:
>> On 1/31/21 8:49 PM, Chao Leng wrote:
>>> nvme drivers need to set the state of request to MQ_RQ_COMPLETE when
>>> directly complete request in queue_rq.
>>> So add blk_mq_set_request_complete.
>>
>> This is a bit iffy, but looks ok for the intended use case. We just have
>> to be careful NOT to add frivolous users of it...
> 
> Yes, that is my main issue with it.  The current use case looks fine,
> but I suspect every time someone else uses it it's probly going to be
> as misuse.  I've applied this to nvme-5.12 with the rest of the patches,
> it should be on its way to you soon.

Might benefit from a big fat comment on why you probably shouldn't
be using it...

-- 
Jens Axboe




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