From mboxrd@z Thu Jan  1 00:00:00 1970
From: keith.busch@intel.com (Keith Busch)
Date: Wed, 13 Jul 2016 12:48:59 -0400
Subject: [PATCHv3 for-4.7] nvme: Remove RCU namespace protection
In-Reply-To: <57866B41.1050307@fb.com>
References: <1467825770-27355-1-git-send-email-keith.busch@intel.com>
 <20160709010754.GA28997@localhost.localdomain>
 <57857A01.1080004@kernel.dk> <20160713022206.GA17034@infradead.org>
 <57866B41.1050307@fb.com>
Message-ID: <20160713164858.GA20963@localhost.localdomain>

On Wed, Jul 13, 2016@09:24:33AM -0700, Jens Axboe wrote:
> On 07/12/2016 07:22 PM, Christoph Hellwig wrote:
> >On Tue, Jul 12, 2016@04:15:13PM -0700, Jens Axboe wrote:
> >>I'm going back and forth on this... This isn't a regression for 4.7, is it?
> >>If so, I'd be a lot more comfortable queuing this up for 4.8 (marked stable)
> >>instead. It'll be another late addition, causing issues when it comes time
> >>to merge for-4.8/drivers in the next merge window.
> >
> >It's a 4.7 regression.
> 
> Two questions, then:
> 
> 1) Why isn't it marked as such? Should have a Fixes tag.

Sorry, my fault. I missed appending the "fixes" in later revisions as
this evovled. Should have:

  Reported-by: Ming Lin <mlin at kernel.org>
  [fixes 0bf77e9 nvme: switch to RCU freeing the namespace]

> 2) It's so large... Not really a question, other than, how can we make it
> smaller/more contained?

Fair enough. Part of the changes are not absolutely necessary (the
ordered insertion, for example). I'll resend a smaller patch with
the appropriate tags.