From: Ming Lei <ming.lei@redhat.com>
To: Jianchao Wang <jianchao.w.wang@oracle.com>
Cc: axboe@kernel.dk, linux-block@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH V2 1/3] blk-mq: refactor the code of issue request directly
Date: Mon, 29 Oct 2018 10:49:38 +0800 [thread overview]
Message-ID: <20181029024937.GC32606@ming.t460p> (raw)
In-Reply-To: <1540569671-6589-2-git-send-email-jianchao.w.wang@oracle.com>
On Sat, Oct 27, 2018 at 12:01:09AM +0800, Jianchao Wang wrote:
> Merge blk_mq_try_issue_directly and __blk_mq_try_issue_directly
> into one interface which is able to handle the return value from
> .queue_rq callback. Due to we can only issue directly w/o io
> scheduler, so remove the blk_mq_get_driver_tag.
It isn't correct for dm-rq, see blk_insert_cloned_request().
Thanks,
Ming
next prev parent reply other threads:[~2018-10-29 2:50 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-10-26 16:01 [PATCH V2 0/3] blk-mq: refactor and fix on issue request directly Jianchao Wang
2018-10-26 16:01 ` [PATCH V2 1/3] blk-mq: refactor the code of " Jianchao Wang
2018-10-29 2:49 ` Ming Lei [this message]
2018-10-29 5:40 ` jianchao.wang
2018-10-26 16:01 ` [PATCH V2 2/3] blk-mq: issue directly with bypass 'false' in blk_mq_sched_insert_requests Jianchao Wang
2018-10-26 16:01 ` [PATCH V2 3/3] blk-mq: ensure hctx to be ran on mapped cpu when issue directly Jianchao Wang
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