From: Scott Bauer <scott.bauer@intel.com>
To: Keith Busch <keith.busch@intel.com>
Cc: Sagi Grimberg <sagi@grimberg.me>,
linux-nvme@lists.infradead.org, Rafael.Antognolli@intel.com,
axboe@fb.com, jonathan.derrick@intel.com, j.naumann@fu-berlin.de,
hch@infradead.org, linux-block@vger.kernel.org
Subject: Re: [RFC PATCH 5/6] nvme: Add unlock_from_suspend
Date: Mon, 7 Nov 2016 11:33:18 -0700 [thread overview]
Message-ID: <20161107183317.GA27936@sbauer-Z170X-UD5> (raw)
In-Reply-To: <20161107184541.GA21698@localhost.localdomain>
On Mon, Nov 07, 2016 at 01:45:42PM -0500, Keith Busch wrote:
> On Tue, Nov 01, 2016 at 10:18:13AM +0200, Sagi Grimberg wrote:
> > > - spin_lock_irq(&nvmeq->q_lock);
> > > + spin_lock_irqsave(&nvmeq->q_lock, flags);
> > > if (unlikely(nvmeq->cq_vector < 0)) {
> > > if (ns && !test_bit(NVME_NS_DEAD, &ns->flags))
> > > ret = BLK_MQ_RQ_QUEUE_BUSY;
> > > else
> > > ret = BLK_MQ_RQ_QUEUE_ERROR;
> > > - spin_unlock_irq(&nvmeq->q_lock);
> > > + spin_unlock_irqrestore(&nvmeq->q_lock, flags);
> > > goto out;
> > > }
> > > __nvme_submit_cmd(nvmeq, &cmnd);
> > > nvme_process_cq(nvmeq);
> > > - spin_unlock_irq(&nvmeq->q_lock);
> > > + spin_unlock_irqrestore(&nvmeq->q_lock, flags);
> >
> > No documentation why this is needed...
>
> Let's forget documenting why it's needed; this solution should instead
> figure out a way to make it so it's not needed.
This is some code that was used for previous iterations while we were testing.
We missed this and some other things in this patch set when we were cleaning up.
It's gone from V2 as well as the other weirdness in the patch.
next prev parent reply other threads:[~2016-11-07 18:38 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-10-31 21:58 [RFC PATCH 0/6] Sed Opal Scott Bauer
2016-10-31 21:58 ` [RFC PATCH 1/6] Include: Add definitions for sed Scott Bauer
2016-10-31 21:58 ` [RFC PATCH 2/6] lib: Add Sed-opal library Scott Bauer
2016-11-01 18:56 ` Jon Derrick
2016-10-31 21:58 ` [RFC PATCH 3/6] lib: Add Sed to Kconfig and Makefile Scott Bauer
2016-10-31 21:58 ` [RFC PATCH 4/6] include: Add sec_ops to block device operations Scott Bauer
2016-10-31 21:58 ` [RFC PATCH 5/6] nvme: Add unlock_from_suspend Scott Bauer
2016-11-01 8:18 ` Sagi Grimberg
2016-11-01 13:57 ` Christoph Hellwig
2016-11-01 14:40 ` Scott Bauer
2016-11-10 23:01 ` Scott Bauer
2016-11-10 23:23 ` Keith Busch
2016-11-10 23:19 ` Christoph Hellwig
2016-11-07 18:45 ` Keith Busch
2016-11-07 18:33 ` Scott Bauer [this message]
2016-10-31 21:58 ` [RFC PATCH 6/6] block: ioctl: Wire up Sed to block ioctls Scott Bauer
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