Date: Tue, 16 Oct 2012 19:30:23 +0000
From: Christoph Lameter <cl@linux.com>
To: Glauber Costa <glommer@parallels.com>
cc: linux-mm@kvack.org, cgroups@vger.kernel.org, Mel Gorman <mgorman@suse.de>,
        Tejun Heo <tj@kernel.org>, Andrew Morton <akpm@linux-foundation.org>,
        Michal Hocko <mhocko@suse.cz>, Johannes Weiner <hannes@cmpxchg.org>,
        kamezawa.hiroyu@jp.fujitsu.com, David Rientjes <rientjes@google.com>,
        Pekka Enberg <penberg@kernel.org>, devel@openvz.org,
        linux-kernel@vger.kernel.org,
        Frederic Weisbecker <fweisbec@redhat.com>,
        Pekka Enberg <penberg@cs.helsinki.fi>,
        Suleiman Souhlal <suleiman@google.com>
Subject: Re: [PATCH v5 14/14] Add documentation about the kmem controller
In-Reply-To: <507DAF56.9010403@parallels.com>
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On Tue, 16 Oct 2012, Glauber Costa wrote:

> A limitation of kernel memory use would be good, for example, to prevent
> abuse from non-trusted containers in a high density, shared, container
> environment.

But that would be against intentional abuse by someone who has code that
causes the kernel to use a lot of memory on its behalf. We already need
protection from that without memcg.

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