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Message-Id: <20090602133534.d2e453f6.akpm@linux-foundation.org>
Date:	Tue, 2 Jun 2009 13:35:34 -0700
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	Dhaval Giani <dhaval@...ux.vnet.ibm.com>
Cc:	menage@...gle.com, lizf@...fujitsu.com, balbir@...ux.vnet.ibm.com,
	kamezawa.hiroyu@...fujitsu.com, linux-kernel@...r.kernel.org,
	bharata@...ux.vnet.ibm.com, libcg-devel@...ts.sourceforge.net
Subject: Re: +
 cgroups-forbid-noprefix-if-mounting-more-than-just-cpuset-subsystem. patch
 added to -mm tree

On Tue, 2 Jun 2009 23:10:42 +0530
Dhaval Giani <dhaval@...ux.vnet.ibm.com> wrote:

> 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.
> 

fyi, the above discussion transitions akpm into the "confused" state. 
I'll keep the patch on hold until akpm transitions back out of that
state.

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