From: Christoph Hellwig <hch@lst.de>
To: Keith Busch <kbusch@kernel.org>
Cc: Christoph Hellwig <hch@lst.de>,
Keith Busch <keith.busch@intel.com>,
linux-nvme@lists.infradead.org, linux-block@vger.kernel.org,
Jens Axboe <axboe@kernel.dk>, Sagi Grimberg <sagi@grimberg.me>
Subject: Re: [PATCH 5/5] nvme/pci: Remove queue IO flushing hack
Date: Wed, 27 Mar 2019 09:31:42 +0100 [thread overview]
Message-ID: <20190327083142.GQ20525@lst.de> (raw)
In-Reply-To: <20190311193753.GE10411@localhost.localdomain>
On Mon, Mar 11, 2019 at 01:37:53PM -0600, Keith Busch wrote:
> > The only thing not purely block layer here is the enabled flag.
> > So if we had a per-hctx enabled flag we could lift this out of nvme,
> > and hopefully start reusing it in other drivers.
>
> Okay, I may even be able to drop the new block exports if we do request
> termination in generic block layer. That's probably the right thing
> anyway since that layer is in a better position to check the necessary
> conditions that make tag iteration safe. Bart did point out that is
> generally not safe for drives to do, so it'd be good to safegaurd against
> incorrect usage.
Did you get a chance to look into this?
next prev parent reply other threads:[~2019-03-27 8:31 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
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 [this message]
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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