From: Nikolay Borisov <nborisov@suse.com>
To: Tejun Heo <tj@kernel.org>, axboe@kernel.dk
Cc: linux-kernel@vger.kernel.org, oleg@redhat.com,
peterz@infradead.org, kernel-team@fb.com, osandov@fb.com
Subject: Re: [PATCH 6/6] blk-mq: remove REQ_ATOM_STARTED
Date: Tue, 12 Dec 2017 13:17:52 +0200 [thread overview]
Message-ID: <8bf8dcc8-6198-902b-5c4c-7c66c17c9fd0@suse.com> (raw)
In-Reply-To: <20171209192525.982030-7-tj@kernel.org>
On 9.12.2017 21:25, Tejun Heo wrote:
> After the recent updates to use generation number and state based
> synchronization, we can easily replace REQ_ATOM_STARTED usages by
> adding an extra state to distinguish completed but not yet freed
> state.
>
> Add MQ_RQ_COMPLETE and replace REQ_ATOM_STARTED usages with
> blk_mq_rq_state() tests. REQ_ATOM_STARTED no longer has any users
> left and is removed.
>
> Signed-off-by: Tejun Heo <tj@kernel.org>
Where are the promised in patch 5/6 performance results?
next prev parent reply other threads:[~2017-12-12 11:17 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-12-09 19:25 [PATCHSET] blk-mq: reimplement timeout handling Tejun Heo
2017-12-09 19:25 ` [PATCH 1/6] blk-mq: protect completion path with RCU Tejun Heo
2017-12-13 3:10 ` jianchao.wang
2017-12-09 19:25 ` [PATCH 2/6] blk-mq: replace timeout synchronization with a RCU and generation based scheme Tejun Heo
2017-12-12 10:09 ` Peter Zijlstra
2017-12-12 18:02 ` Tejun Heo
2017-12-12 10:10 ` Peter Zijlstra
2017-12-12 18:03 ` Tejun Heo
2017-12-12 11:56 ` Peter Zijlstra
2017-12-12 18:04 ` Tejun Heo
2017-12-09 19:25 ` [PATCH 3/6] blk-mq: use blk_mq_rq_state() instead of testing REQ_ATOM_COMPLETE Tejun Heo
2017-12-09 19:25 ` [PATCH 4/6] blk-mq: make blk_abort_request() trigger timeout path Tejun Heo
2017-12-09 19:25 ` [PATCH 5/6] blk-mq: remove REQ_ATOM_COMPLETE usages from blk-mq Tejun Heo
2017-12-09 19:25 ` [PATCH 6/6] blk-mq: remove REQ_ATOM_STARTED Tejun Heo
2017-12-12 10:09 ` jianchao.wang
2017-12-12 17:01 ` Tejun Heo
2017-12-12 17:26 ` Tejun Heo
2017-12-13 3:05 ` jianchao.wang
2017-12-13 16:09 ` Tejun Heo
2017-12-14 2:14 ` jianchao.wang
2017-12-12 11:17 ` Nikolay Borisov [this message]
2017-12-12 17:29 ` Tejun Heo
2017-12-11 9:27 ` [PATCHSET] blk-mq: reimplement timeout handling Peter Zijlstra
2017-12-12 9:21 ` Christoph Hellwig
2017-12-12 16:39 ` Tejun Heo
2017-12-12 16:08 ` Peter Zijlstra
2017-12-12 19:01 [PATCHSET v2] " Tejun Heo
2017-12-12 19:01 ` [PATCH 6/6] blk-mq: remove REQ_ATOM_STARTED Tejun Heo
2017-12-12 22:20 ` Bart Van Assche
2017-12-12 22:22 ` tj
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