From: Keith Busch <kbusch@kernel.org>
To: "jianchao.wang" <jianchao.w.wang@oracle.com>
Cc: "Busch, Keith" <keith.busch@intel.com>,
"linux-nvme@lists.infradead.org" <linux-nvme@lists.infradead.org>,
"linux-block@vger.kernel.org" <linux-block@vger.kernel.org>,
Jens Axboe <axboe@kernel.dk>, Christoph Hellwig <hch@lst.de>,
Sagi Grimberg <sagi@grimberg.me>
Subject: Re: [PATCH 4/5] nvme: Fail dead namespace's entered requests
Date: Mon, 11 Mar 2019 09:42:39 -0600 [thread overview]
Message-ID: <20190311154239.GB10411@localhost.localdomain> (raw)
In-Reply-To: <671edb24-d3a7-988e-c1e5-3ba140da5451@oracle.com>
On Sun, Mar 10, 2019 at 08:58:21PM -0700, jianchao.wang wrote:
> Hi Keith
>
> How about introducing a per hctx queue_rq callback, then install a
> separate .queue_rq callback for the dead hctx. Then we just need to
> start and complete the request there.
That sounds like it could work, though I think just returning
BLK_STS_IOERR like we currently do is better than starting a completing
it. But adding a new callback that can change at runtime is a more
complicated, and would affect a lot more drivers that I am not able
to test.
next prev parent reply other threads:[~2019-03-11 15:42 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
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 [this message]
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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