From: Chao Leng <lengchao@huawei.com>
To: Minwoo Im <minwoo.im.dev@gmail.com>
Cc: axboe@kernel.dk, linux-block@vger.kernel.org, sagi@grimberg.me,
linux-nvme@lists.infradead.org, axboe@fb.com, kbusch@kernel.org,
hch@lst.de
Subject: Re: [PATCH 1/6] blk-mq: introduce blk_mq_set_request_complete
Date: Wed, 6 Jan 2021 10:29:57 +0800 [thread overview]
Message-ID: <e4308bf9-ac47-d765-fe9a-6852a67da5c5@huawei.com> (raw)
In-Reply-To: <20210105191638.GB4426@localhost.localdomain>
On 2021/1/6 3:16, Minwoo Im wrote:
> Hello,
>
> On 21-01-05 15:19:31, Chao Leng wrote:
>> In some scenarios, nvme need setting the state of request to
>> MQ_RQ_COMPLETE. So add an inline function blk_mq_set_request_complete.
>> For details, see the subsequent patches.
>>
>> Signed-off-by: Chao Leng <lengchao@huawei.com>
>> ---
>> include/linux/blk-mq.h | 5 +++++
>> 1 file changed, 5 insertions(+)
>>
>> diff --git a/include/linux/blk-mq.h b/include/linux/blk-mq.h
>> index e7482e6ad3ec..cee72d31054d 100644
>> --- a/include/linux/blk-mq.h
>> +++ b/include/linux/blk-mq.h
>> @@ -493,6 +493,11 @@ static inline int blk_mq_request_completed(struct request *rq)
>> return blk_mq_rq_state(rq) == MQ_RQ_COMPLETE;
>> }
>>
>> +static inline void blk_mq_set_request_complete(struct request *rq)
>> +{
>> + WRITE_ONCE(rq->state, MQ_RQ_COMPLETE);
>> +}
>> +
>
> Maybe we can have this newly added helper with updating caller
> in blk_mq_complete_request_remote() also ?
There are similar optimizations for blk_mq_request_started and
blk_mq_request_completed. It may be better to optimize it by using
independent patches.
>
> Thanks,
> .
>
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next prev parent reply other threads:[~2021-01-06 2:30 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-05 7:19 [PATCH 0/6] avoid repeated request completion and IO error Chao Leng
2021-01-05 7:19 ` [PATCH 1/6] blk-mq: introduce blk_mq_set_request_complete Chao Leng
2021-01-05 19:16 ` Minwoo Im
2021-01-06 2:29 ` Chao Leng [this message]
2021-01-05 7:19 ` [PATCH 2/6] nvme-core: introduce complete failed request Chao Leng
2021-01-05 19:11 ` Minwoo Im
2021-01-06 2:31 ` Chao Leng
2021-01-05 7:19 ` [PATCH 3/6] nvme-fabrics: avoid repeated request completion for nvmf_fail_nonready_command Chao Leng
2021-01-05 7:19 ` [PATCH 4/6] nvme-rdma: avoid IO error and repeated request completion Chao Leng
2021-01-05 7:19 ` [PATCH 5/6] nvme-tcp: " Chao Leng
2021-01-05 7:19 ` [PATCH 6/6] nvme-fc: " Chao Leng
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