From: Bart Van Assche <Bart.VanAssche@wdc.com>
To: "tj@kernel.org" <tj@kernel.org>, "axboe@kernel.dk" <axboe@kernel.dk>
Cc: "kernel-team@fb.com" <kernel-team@fb.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"peterz@infradead.org" <peterz@infradead.org>,
"osandov@fb.com" <osandov@fb.com>,
"linux-block@vger.kernel.org" <linux-block@vger.kernel.org>,
"oleg@redhat.com" <oleg@redhat.com>, "hch@lst.de" <hch@lst.de>
Subject: Re: [PATCH 4/6] blk-mq: make blk_abort_request() trigger timeout path
Date: Thu, 14 Dec 2017 18:56:55 +0000 [thread overview]
Message-ID: <1513277814.2475.45.camel@wdc.com> (raw)
In-Reply-To: <20171212190134.535941-5-tj@kernel.org>
On Tue, 2017-12-12 at 11:01 -0800, Tejun Heo wrote:
> void blk_abort_request(struct request *req)
> {
> - if (blk_mark_rq_complete(req))
> - return;
>
> if (req->q->mq_ops) {
> - blk_mq_rq_timed_out(req, false);
> + req->deadline = jiffies;
> + mod_timer(&req->q->timeout, 0);
> } else {
> + if (blk_mark_rq_complete(req))
> + return;
> blk_delete_timer(req);
> blk_rq_timed_out(req);
> }
This patch makes blk_abort_request() asynchronous for blk-mq. Have all callers
been audited to verify whether this change is safe?
Thanks,
Bart.
next prev parent reply other threads:[~2017-12-14 18:57 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-12-12 19:01 [PATCHSET v2] blk-mq: reimplement timeout handling Tejun Heo
2017-12-12 19:01 ` [PATCH 1/6] blk-mq: protect completion path with RCU Tejun Heo
2017-12-13 3:30 ` jianchao.wang
2017-12-13 16:13 ` Tejun Heo
2017-12-14 2:09 ` jianchao.wang
2017-12-14 17:01 ` Bart Van Assche
2017-12-14 18:14 ` tj
2017-12-12 19:01 ` [PATCH 2/6] blk-mq: replace timeout synchronization with a RCU and generation based scheme Tejun Heo
2017-12-12 21:37 ` Bart Van Assche
2017-12-12 21:44 ` tj
2017-12-13 5:07 ` jianchao.wang
2017-12-13 16:13 ` Tejun Heo
2017-12-14 18:51 ` Bart Van Assche
2017-12-14 19:19 ` tj
2017-12-14 21:13 ` Bart Van Assche
2017-12-15 13:30 ` tj
2017-12-14 20:20 ` Peter Zijlstra
2017-12-14 21:42 ` Bart Van Assche
2017-12-14 21:54 ` Peter Zijlstra
2017-12-15 2:12 ` jianchao.wang
2017-12-15 7:31 ` Peter Zijlstra
2017-12-15 15:14 ` jianchao.wang
2017-12-15 2:39 ` Mike Galbraith
2017-12-15 13:50 ` tj
2017-12-12 19:01 ` [PATCH 3/6] blk-mq: use blk_mq_rq_state() instead of testing REQ_ATOM_COMPLETE Tejun Heo
2017-12-12 19:01 ` [PATCH 4/6] blk-mq: make blk_abort_request() trigger timeout path Tejun Heo
2017-12-14 18:56 ` Bart Van Assche [this message]
2017-12-14 19:26 ` tj
2017-12-12 19:01 ` [PATCH 5/6] blk-mq: remove REQ_ATOM_COMPLETE usages from blk-mq 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
2017-12-12 20:23 ` [PATCHSET v2] blk-mq: reimplement timeout handling Jens Axboe
2017-12-12 21:40 ` Tejun Heo
2017-12-20 23:41 ` Bart Van Assche
2017-12-21 0:08 ` tj
2017-12-21 1:00 ` Bart Van Assche
-- strict thread matches above, loose matches on Subject: below --
2017-12-09 19:25 [PATCHSET] " Tejun Heo
2017-12-09 19:25 ` [PATCH 4/6] blk-mq: make blk_abort_request() trigger timeout path Tejun Heo
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