From: Bart Van Assche <bvanassche@acm.org>
To: Keith Busch <keith.busch@intel.com>,
linux-nvme@lists.infradead.org, linux-block@vger.kernel.org,
Jens Axboe <axboe@kernel.dk>
Cc: Christoph Hellwig <hch@lst.de>, Sagi Grimberg <sagi@grimberg.me>
Subject: Re: [PATCH 2/5] blk-mq: Export iterating queue requests
Date: Fri, 08 Mar 2019 10:08:47 -0800 [thread overview]
Message-ID: <1552068527.45180.25.camel@acm.org> (raw)
In-Reply-To: <20190308174006.5032-2-keith.busch@intel.com>
On Fri, 2019-03-08 at 10:40 -0700, Keith Busch wrote:
> A driver may need to iterate a particular queue's tagged request rather
> than the whole tagset.
Since iterating over requests triggers race conditions with request execution
please explain what use case(s) you have in mind and what your plan is to handle
such race conditions.
Thanks,
Bart.
next prev parent reply other threads:[~2019-03-08 18:08 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-03-08 17:40 [PATCH 1/5] blk-mq: Export reading mq request state Keith Busch
2019-03-08 17:40 ` [PATCH 2/5] blk-mq: Export iterating queue requests Keith Busch
2019-03-08 18:08 ` Bart Van Assche [this message]
2019-03-08 18:13 ` Keith Busch
2019-03-08 17:40 ` [PATCH 3/5] blk-mq: Iterate tagset over all requests Keith Busch
2019-03-08 17:40 ` [PATCH 4/5] nvme: Fail dead namespace's entered requests Keith Busch
2019-03-08 18:15 ` Bart Van Assche
2019-03-08 18:19 ` Keith Busch
2019-03-08 21:54 ` Bart Van Assche
2019-03-08 22:06 ` Keith Busch
2019-03-11 3:58 ` jianchao.wang
2019-03-11 15:42 ` Keith Busch
2019-03-08 17:40 ` [PATCH 5/5] nvme/pci: Remove queue IO flushing hack Keith Busch
2019-03-08 18:19 ` Bart Van Assche
2019-03-11 18:40 ` Christoph Hellwig
2019-03-11 19:37 ` Keith Busch
2019-03-27 8:31 ` Christoph Hellwig
2019-03-27 13:21 ` Keith Busch
2019-03-28 1:42 ` jianchao.wang
2019-03-28 3:33 ` Keith Busch
2019-03-08 18:07 ` [PATCH 1/5] blk-mq: Export reading mq request state Bart Van Assche
2019-03-08 18:15 ` Keith Busch
2019-03-08 18:42 ` Bart Van Assche
2019-03-08 19:19 ` Keith Busch
2019-03-08 20:47 ` Bart Van Assche
2019-03-08 21:14 ` Keith Busch
2019-03-08 21:25 ` Bart Van Assche
2019-03-08 21:31 ` Keith Busch
2019-03-08 20:21 ` Sagi Grimberg
2019-03-08 20:29 ` Keith Busch
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