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

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Message-ID: <20120305180325.GC18546@redhat.com>
Date:	Mon, 5 Mar 2012 13:03:25 -0500
From:	Vivek Goyal <vgoyal@...hat.com>
To:	Tejun Heo <tj@...nel.org>
Cc:	axboe@...nel.dk, 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,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [PATCHSET] mempool, percpu, blkcg: fix percpu stat allocation
 and remove stats_lock

On Mon, Mar 05, 2012 at 09:20:00AM -0800, Tejun Heo wrote:
> Hello, Vivek.
> 
> Sorry about the delay.  Was off last week.
> 
> On Wed, Feb 29, 2012 at 02:03:54PM -0500, Vivek Goyal wrote:
> > Ok, more debugging revealed that culprit here is "floppy" driver module.
> > It instanciates a queue but never registers a disk against it. Better
> > skip such queues/groups. Here is the patch.
> 
> Urgh.. I hate that driver.  I ended up folding the following patch in
> the series right after "blkcg: kill the mind-bending blkg->dev".

Looks good to me.

Acked-by: Vivek Goyal <vgoyal@...hat.com>

Thanks
Vivek
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