linux-kernel - Re: [RFC][PATCH 5/7] cgroup: make sure parent won't be destroyed before its children

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Date:	Thu, 4 Apr 2013 08:22:13 -0700
From:	Tejun Heo <tj@...nel.org>
To:	Michal Hocko <mhocko@...e.cz>
Cc:	Li Zefan <lizefan@...wei.com>, linux-mm@...ck.org,
	LKML <linux-kernel@...r.kernel.org>,
	Cgroups <cgroups@...r.kernel.org>,
	Glauber Costa <glommer@...allels.com>,
	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>,
	Johannes Weiner <hannes@...xchg.org>
Subject: Re: [RFC][PATCH 5/7] cgroup: make sure parent won't be destroyed
 before its children

On Thu, Apr 04, 2013 at 05:20:28PM +0200, Michal Hocko wrote:
> > But what harm does an additional reference do?
> 
> No harm at all. I just wanted to be sure that this is not yet another
> "for memcg" hack. So if this is useful for other controllers then I have
> no objections of course.

I think it makes sense in general, so let's do it in cgroup core.  I
suppose it'd be easier for this to be routed together with other memcg
changes?

Thanks.

-- 
tejun
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