linux-kernel - Re: [RFC][PATCH 0/2] Android style loosening of cgroup attach permissions

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Message-ID: <CALAqxLUXV5OaY2Ca15FckBRvVN-XKbZm00kQ7OWr5qFdc0BdsA@mail.gmail.com>
Date:	Fri, 5 Jun 2015 14:33:00 -0700
From:	John Stultz <john.stultz@...aro.org>
To:	Johannes Weiner <hannes@...xchg.org>
Cc:	Tejun Heo <tj@...nel.org>, lkml <linux-kernel@...r.kernel.org>,
	Li Zefan <lizefan@...wei.com>,
	Jonathan Corbet <corbet@....net>, cgroups@...r.kernel.org,
	Android Kernel Team <kernel-team@...roid.com>,
	Rom Lemarchand <romlem@...roid.com>,
	Colin Cross <ccross@...roid.com>
Subject: Re: [RFC][PATCH 0/2] Android style loosening of cgroup attach permissions

On Thu, Jun 4, 2015 at 11:36 AM, Johannes Weiner <hannes@...xchg.org> wrote:
> On Thu, Jun 04, 2015 at 10:11:17AM -0700, John Stultz wrote:
>> On Tue, Jun 2, 2015 at 10:50 PM, Tejun Heo <tj@...nel.org> wrote:
>> > memcg usage came up a while ago and there wasn't anything major which
>> > can't be achieved (usually better) by following more standard cgroup
>> > usage - changing knobs rather than moving tasks around.
>>
>> Do you have a pointer to that discussion or maybe even just a sense of
>> who was involved so I can trawl the list and better understand it?
>
> I wrote a lengthy explanation of why moving tasks between cgroups is
> problematic from a memcg view: https://lkml.org/lkml/2014/12/19/358

And many thanks for the discussion pointer here! Its very enlightening!
thanks
-john
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