linux-kernel - Re: [tip:perf/core] perf/x86/intel: Clean-up/reduce PEBS code

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Date:	Mon, 16 Sep 2013 18:09:21 +0200
From:	Andi Kleen <andi@...stfloor.org>
To:	Peter Zijlstra <peterz@...radead.org>
Cc:	Andi Kleen <andi@...stfloor.org>, mingo@...nel.org, hpa@...or.com,
	linux-kernel@...r.kernel.org, tglx@...utronix.de,
	linux-tip-commits@...r.kernel.org
Subject: Re: [tip:perf/core] perf/x86/intel: Clean-up/reduce PEBS code

>  
>  	/*
>  	 * Should not happen, we program the threshold at 1 and do not
>  	 * set a reset value.
>  	 */
> -	WARN_ONCE(n > x86_pmu.max_pebs_events,
> -		  "Unexpected number of pebs records %d\n", n);
> +	WARN_ONCE(top - at > x86_pmu.max_pebs_events * x86_pmu.pebs_record_size,

That should work yes.

-Andi
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