Date: Fri, 22 May 2015 15:25:34 +0200
From: Peter Zijlstra <peterz@infradead.org>
To: Stephane Eranian <eranian@google.com>
Cc: Ingo Molnar <mingo@kernel.org>, Vince Weaver <vincent.weaver@maine.edu>,
        Jiri Olsa <jolsa@redhat.com>, LKML <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH 02/10] perf/x86: Improve HT workaround GP counter
 constraint
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On Fri, May 22, 2015 at 06:07:00AM -0700, Stephane Eranian wrote:
> 
> One other thing I noticed is that the --n_excl needs to be protected by the
> excl_cntrs->lock in put_excl_constraints().

Nah, its strictly per cpu.
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