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Date: Tue, 12 Jan 2010 09:21:06 +0900
From: KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>
To: Vivek Goyal <vgoyal@...hat.com>
Cc: Li Zefan <lizf@...fujitsu.com>, axboe@...nel.dk,
ryov@...inux.co.jp, Andrew Morton <akpm@...ux-foundation.org>,
menage@...gle.com, containers@...ts.linux-foundation.org,
linux-kernel@...r.kernel.org
Subject: Re: [RFC] [PATCH 2/2] cgroups: blkio subsystem as module
On Fri, 8 Jan 2010 10:10:38 -0500
Vivek Goyal <vgoyal@...hat.com> wrote:
> On Fri, Jan 08, 2010 at 12:30:21AM -0500, Ben Blum wrote:
> > Convert blk-cgroup to be buildable as a module
> >
> > From: Ben Blum <bblum@...rew.cmu.edu>
> >
> > This patch modifies the Block I/O cgroup subsystem to be able to be built as a
> > module. As the CFQ disk scheduler optionally depends on blk-cgroup, config
> > options in block/Kconfig, block/Kconfig.iosched, and block/blk-cgroup.h are
> > enhanced to support the new module dependency.
> >
>
> Hi Ben,
>
> I will give this patch a try.
>
> So from blk-cgroup perspective, the advantage of allowing it as module
> will be that we can save some memory if we are not using the controller?
>
Is "moduled" blkio cgroup safe after page-tracking by page_cgroup is
introduced ?
Thanks,
-Kame
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