linux-kernel - Re: [PATCH] perf cgroups: Fix perf_cgroup

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Date:	Tue, 02 Oct 2012 15:10:46 +0200
From:	Peter Zijlstra <a.p.zijlstra@...llo.nl>
To:	Stephane Eranian <eranian@...gle.com>
Cc:	Jiri Olsa <jolsa@...hat.com>, LKML <linux-kernel@...r.kernel.org>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Ingo Molnar <mingo@...e.hu>, Paul Mackerras <paulus@...ba.org>,
	Arnaldo Carvalho de Melo <acme@...hat.com>
Subject: Re: [PATCH] perf cgroups: Fix perf_cgroup_switch schedule in warning

On Tue, 2012-10-02 at 14:48 +0200, Stephane Eranian wrote:
> Not sure, I understand what active_pmu represents.

Its a 'random' pmu of those that share the cpuctx, exactly so you can
limit pmu iterations to those with unique cpuctx instances.

Its assigned when we create a cpuctx to the pmu creating it, its
re-assigned on pmu destruction (if that ever were to happen).

I realize the name isn't really helping but at the time I couldn't come
up with anything better :/

If you've got a good suggestion I'd be glad to rename it.
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