linux-kernel - Re: [PATCH 0/7] hugepage migration

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Message-ID: <20100705084415.GA29648@spritzera.linux.bs1.fc.nec.co.jp>
Date:	Mon, 5 Jul 2010 17:44:15 +0900
From:	Naoya Horiguchi <n-horiguchi@...jp.nec.com>
To:	Andi Kleen <andi@...stfloor.org>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Mel Gorman <mel@....ul.ie>,
	Wu Fengguang <fengguang.wu@...el.com>,
	"Jun'ichi Nomura" <j-nomura@...jp.nec.com>,
	linux-mm <linux-mm@...ck.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 0/7] hugepage migration

On Fri, Jul 02, 2010 at 10:30:26AM +0200, Andi Kleen wrote:
> On Fri, Jul 02, 2010 at 02:47:19PM +0900, Naoya Horiguchi wrote:
> > This is a patchset for hugepage migration.
> 
> Thanks for working on this.
> > 
> > There are many users of page migration such as soft offlining,
> > memory hotplug, memory policy and memory compaction,
> > but this patchset adds hugepage support only for soft offlining
> > as the first step.
> 
> Is that simply because the callers are not hooked up yet 
> for the other cases, or more fundamental issues?

Yes, it's just underway.
I hope we have no critical problems to implement other cases at the time.

> 
> > I tested this patchset with 'make func' in libhugetlbfs and
> > have gotten the same result as one from 2.6.35-rc3.
> 
> Is there a tester for the functionality too? (e.g. mce-test test cases)

Yes.
I'll send patches on mce-test suite later.

Thanks,
Naoya Horiguchi
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