linux-kernel - Re: [PATCH 2/2 v2] optimize for perf_event_init

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Message-Id: <1253868957.10287.5.camel@twins>
Date:	Fri, 25 Sep 2009 10:55:57 +0200
From:	Peter Zijlstra <peterz@...radead.org>
To:	Xiao Guangrong <xiaoguangrong@...fujitsu.com>
Cc:	Ingo Molnar <mingo@...e.hu>, Paul Mackerras <paulus@...ba.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 2/2 v2] optimize for perf_event_init_task()

On Fri, 2009-09-25 at 13:54 +0800, Xiao Guangrong wrote:
> We can traverse ctx->group_list to get all group leader, it should be safe
> since we hold ctx->mutex
> 
> Changlog v1->v2:
> - remove WARN_ON_ONCE() as Peter Zijlstra's suggestion
> 
> Signed-off-by: Xiao Guangrong <xiaoguangrong@...fujitsu.com>

Thanks!

Acked-by: Peter Zijlstra <a.p.zijlstra@...llo.nl>
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