linux-kernel - Re: [PATCH] perf_counter: cleanup for __perf_event_sched

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Message-ID: <4AB89892.3080603@cn.fujitsu.com>
Date:	Tue, 22 Sep 2009 17:27:46 +0800
From:	Xiao Guangrong <xiaoguangrong@...fujitsu.com>
To:	Paul Mackerras <paulus@...ba.org>
CC:	Ingo Molnar <mingo@...e.hu>, Peter Zijlstra <peterz@...radead.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] perf_counter: cleanup for __perf_event_sched_in()



Paul Mackerras wrote:
> Xiao Guangrong writes:
> 
>> It must be a group leader if event->attr.pinned is "1"
> 
> True, but you shouldn't use BUG_ON unless there is no sensible way for
> the kernel to continue executing, and that's not the case here.  Make
> it WARN_ON, or better still, WARN_ON_ONCE.
> 

Yeah, thanks for you point out, I'll fix it soon.

Thanks,
Xiao

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