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Date: Wed, 9 Dec 2009 09:43:08 +0100
From: Frederic Weisbecker <fweisbec@gmail.com>
To: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com>
Cc: Ingo Molnar <mingo@elte.hu>, Peter Zijlstra <peterz@infradead.org>,
       Paul Mackerras <paulus@samba.org>, LKML <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH 2/3] perf_event: allocate children's perf_event_ctxp at
	the right time
Message-ID: <20091209084306.GB5152@nowhere>
References: <4B1F194D.7080306@cn.fujitsu.com> <4B1F19A8.5040805@cn.fujitsu.com>
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On Wed, Dec 09, 2009 at 11:29:44AM +0800, Xiao Guangrong wrote:
> In current code, children task will allocate memory for
> 'child->perf_event_ctxp' if the parent is counted, we can
> do it only if the parent allowed children inherit it.
> 
> It can save memory and reduce overhead
> 
> Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com>


Reviewed-by: Frederic Weisbecker <fweisbec@gmail.com>

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