linux-kernel - Re: [PATCHSET] perf, cgroup: implement hierarchy support for perf

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Date:	Wed, 10 Apr 2013 11:08:06 -0700
From:	Tejun Heo <tj@...nel.org>
To:	mingo@...hat.com
Cc:	a.p.zijlstra@...llo.nl, paulus@...ba.org, acme@...stprotocols.net,
	eranian@...gle.com, namhyung.kim@....com, lizefan@...wei.com,
	mhocko@...e.cz, kamezawa.hiroyu@...fujitsu.com,
	cgroups@...r.kernel.org, containers@...ts.linux-foundation.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCHSET] perf, cgroup: implement hierarchy support for
 perf_event controller

On Mon, Apr 08, 2013 at 07:23:30PM -0700, Tejun Heo wrote:
> perf_event cgroup controller is one of the remaining few with broken
> hierarchy support.  It turns out it's pretty easy to implement - the
> only thing necessary is making perf_cgroup_match() return %true also
> when the cgroup of the current task is a descendant of the event's
> cgroup.  This patchset implements cgroup_is_descendant() and uses it
> to implement hierarchy support in perf_event controller.

Applied to cgroup/for-3.10.

Thanks.

-- 
tejun
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