linux-kernel - Re: [PATCHSET] mempool, percpu, blkcg: fix percpu stat allocation and remove stats

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Message-Id: <20120223144336.58742e1b.akpm@linux-foundation.org>
Date:	Thu, 23 Feb 2012 14:43:36 -0800
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	Tejun Heo <tj@...nel.org>
Cc:	axboe@...nel.dk, vgoyal@...hat.com, hughd@...gle.com,
	avi@...hat.com, nate@...nel.net, cl@...ux-foundation.org,
	linux-kernel@...r.kernel.org, dpshah@...gle.com,
	ctalbott@...gle.com, rni@...gle.com
Subject: Re: [PATCHSET] mempool, percpu, blkcg: fix percpu stat allocation
 and remove stats_lock

On Thu, 23 Feb 2012 14:30:38 -0800
Tejun Heo <tj@...nel.org> wrote:

> This patchset is combination of the patchset "block, mempool, percpu:
> implement percpu mempool and fix blkcg percpu alloc deadlock" [1] and
> patches to remove blkg->stats_lock.

What's changed since last time?  I scanned the changelogs to see how
earlier issues were addressed and saw no mention of any of it.  eg, is
the code still deadlockable if the allocator is called with __GFP_WAIT?
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