linux-kernel - Re: [PATCH 0/7] devcg: device cgroup extension for rdma resource

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Message-ID: <20150908152340.GA13749@mtj.duckdns.org>
Date:	Tue, 8 Sep 2015 11:23:40 -0400
From:	Tejun Heo <tj@...nel.org>
To:	Parav Pandit <pandit.parav@...il.com>
Cc:	cgroups@...r.kernel.org, linux-doc@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-rdma@...r.kernel.org,
	lizefan@...wei.com, hannes@...xchg.org, dledford@...hat.com,
	corbet@....net, james.l.morris@...cle.com, serge@...lyn.com,
	haggaie@...lanox.com, ogerlitz@...lanox.com, matanb@...lanox.com,
	raindel@...lanox.com, akpm@...ux-foundation.org,
	linux-security-module@...r.kernel.org
Subject: Re: [PATCH 0/7] devcg: device cgroup extension for rdma resource

Hello, Parav.

On Tue, Sep 08, 2015 at 02:08:16AM +0530, Parav Pandit wrote:
> Currently user space applications can easily take away all the rdma
> device specific resources such as AH, CQ, QP, MR etc. Due to which other
> applications in other cgroup or kernel space ULPs may not even get chance
> to allocate any rdma resources.

Is there something simple I can read up on what each resource is?
What's the usual access control mechanism?

> This patch-set allows limiting rdma resources to set of processes.
> It extend device cgroup controller for limiting rdma device limits.

I don't think this belongs to devcg.  If these make sense as a set of
resources to be controlled via cgroup, the right way prolly would be a
separate controller.

Thanks.

-- 
tejun
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