From mboxrd@z Thu Jan  1 00:00:00 1970
From: Aleksa Sarai <asarai@suse.de>
Subject: Re: [PATCH v3 1/2] cgroup: apply common ancestor cgroup.procs
 restriction in cgroupv1
Date: Tue, 3 May 2016 11:44:47 +1000
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To: Tejun Heo <tj@kernel.org>
Cc: Li Zefan <lizefan@huawei.com>, Johannes Weiner <hannes@cmpxchg.org>, cgroups@vger.kernel.org, linux-kernel@vger.kernel.org, dev@opencontainers.org, Aleksa Sarai <cyphar@cyphar.com>

> So, you can't apply a new restriction like this retro-actively to
> cgroup v1 hierarchies.

Okay, understood. I'll see if it's possible to make this change safe 
without adding restrictions to cgroupv1 hierarchies.

-- 
Aleksa Sarai
Software Engineer (Containers)
SUSE Linux GmbH
https://www.cyphar.com/