linux-kernel - Re: [PATCH 2/2] memcg: disable hierarchy support if bound to the legacy cgroup hierarchy

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Message-ID: <20150302173315.GA24664@phnom.home.cmpxchg.org>
Date:	Mon, 2 Mar 2015 12:33:15 -0500
From:	Johannes Weiner <hannes@...xchg.org>
To:	Tejun Heo <tj@...nel.org>
Cc:	Vladimir Davydov <vdavydov@...allels.com>,
	Michal Hocko <mhocko@...e.cz>, linux-mm@...ck.org,
	cgroups@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/2] memcg: disable hierarchy support if bound to the
 legacy cgroup hierarchy

On Mon, Mar 02, 2015 at 12:13:23PM -0500, Tejun Heo wrote:
> On Thu, Feb 19, 2015 at 05:34:47PM +0300, Vladimir Davydov wrote:
> > If the memory cgroup controller is initially mounted in the scope of the
> > default cgroup hierarchy and then remounted to a legacy hierarchy, it
> > will still have hierarchy support enabled, which is incorrect. We should
> > disable hierarchy support if bound to the legacy cgroup hierarchy.
> > 
> > Signed-off-by: Vladimir Davydov <vdavydov@...allels.com>
> 
> Johannes, Michal, can you guys pick this up?

Yup, will do.
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