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Date: Thu, 22 Apr 2010 14:12:12 -0700
From: Matt Helsley <matthltc@us.ibm.com>
To: Peter Zijlstra <peterz@infradead.org>
Cc: Li Zefan <lizf@cn.fujitsu.com>, Andrew Morton <akpm@linux-foundation.org>,
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Subject: Re: [PATCH 3/5] sched: Fix an RCU warning in print_task()
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On Thu, Apr 22, 2010 at 12:20:04PM +0200, Peter Zijlstra wrote:

<snip>

> You can also pin a cgroup by holding whatever locks are held in the
> ->attach method. But the RCU annotation doesn't know (nor reasonably can
> know about that).

For my future reference, what's the right way to "fix" these
situations with the RCU annotations? (I think your response re: Li's
freezer patch was correct and illustrates the problem I'm referring to.)

Cheers,
	-Matt Helsley
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