linux-kernel - Re: + cgroups-forbid-noprefix-if-mounting-more-than-just-cpuset-subsystem. patch added to -mm tree

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Message-ID: <20090602174042.GD16753@linux.vnet.ibm.com>
Date:	Tue, 2 Jun 2009 23:10:42 +0530
From:	Dhaval Giani <dhaval@...ux.vnet.ibm.com>
To:	Paul Menage <menage@...gle.com>
Cc:	akpm@...ux-foundation.org, mm-commits@...r.kernel.org,
	lizf@...fujitsu.com, balbir@...ux.vnet.ibm.com,
	kamezawa.hiroyu@...fujitsu.com,
	lkml <linux-kernel@...r.kernel.org>,
	Bharata B Rao <bharata@...ux.vnet.ibm.com>,
	libcg-devel <libcg-devel@...ts.sourceforge.net>
Subject: Re: +
	cgroups-forbid-noprefix-if-mounting-more-than-just-cpuset-subsystem.
	patch added to -mm tree

On Tue, Jun 02, 2009 at 09:08:04AM -0700, Paul Menage wrote:
> On Tue, Jun 2, 2009 at 2:09 AM, Dhaval Giani <dhaval@...ux.vnet.ibm.com> wrote:
> >
> > I am not sure if this is a good idea. For libcgroup, we would then be
> > adding a special case for just cpuset. I would rather that we allow it
> > either for all the subsystems or none of them.
> >
> 
> libcgroup shouldn't be using the noprefix option. Its only intentded
> use is to allow the legacy "cpuset" filesystem type to be mounted and
> to see the same fileset as it had before the cgroups transition.
> 

It does not. But if some user is using that option, we need to be in a
position to handle it.

I am quite happy not supporting the noprefix option in the library if it
is fine.

Thanks,
-- 
regards,
Dhaval
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