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Date: Wed, 2 Jul 2014 10:49:01 -0400
From: Tejun Heo <tj@kernel.org>
To: Binder Makin <merimus@google.com>
Cc: viro@zeniv.linux.org.uk, linux-kernel@vger.kernel.org,
        Daniel Jacobowitz <dmj@google.com>,
        Johannes Weiner <hannes@cmpxchg.org>, Michal Hocko <mhocko@suse.cz>,
        Li Zefan <lizefan@huawei.com>, cgroups@vger.kernel.org
Subject: Re: [RFC] cgroups: Resource controller for open files.
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Hello,

On Wed, Jul 02, 2014 at 10:46:59AM -0400, Binder Makin wrote:
> kmem keeps the cgroup from DOSing the machine but then you can get a ENOMEM
> out of some call which is trying to allocate kernel memory.
> People are used to limiting file handles from rlimits and the EMFILE is
> easier for them to debug/fix.

EMFILE instead of ENOMEM seems really thin as the sole rationale for a
whole new controller, doesn't it?

Thanks.

-- 
tejun