linux-kernel - Re: [PATCHv1 0/6] rdma controller support

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Message-ID: <20160105215623.GH5995@mtj.duckdns.org>
Date:	Tue, 5 Jan 2016 16:56:23 -0500
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,
	liranl@...lanox.com, sean.hefty@...el.com,
	jgunthorpe@...idianresearch.com, haggaie@...lanox.com,
	corbet@....net, james.l.morris@...cle.com, serge@...lyn.com,
	ogerlitz@...lanox.com, matanb@...lanox.com, raindel@...lanox.com,
	akpm@...ux-foundation.org, linux-security-module@...r.kernel.org
Subject: Re: [PATCHv1 0/6] rdma controller support

Hello,

On Wed, Jan 06, 2016 at 12:28:00AM +0530, Parav Pandit wrote:
> Resources are not defined by the RDMA cgroup. Resources are defined
> by RDMA/IB stack & optionally by HCA vendor device drivers.

As I wrote before, I don't think this is a good idea.  Drivers will
inevitably add non-sensical "resources" which don't make any sense
without much scrutiny.  If different controllers can't agree upon the
same set of resources, which probably is a pretty good sign that this
isn't too well thought out to begin with, at least make all resource
types defined by the controller itself and let the controllers enable
them selectively.

Thanks.

-- 
tejun
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