linux-kernel - Re: [RFC][PATCH] Remove cgroup member from struct page (v3)

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Date:	Thu, 18 Sep 2008 13:50:23 +0900
From:	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>
To:	Hirokazu Takahashi <taka@...inux.co.jp>
Cc:	akpm@...ux-foundation.org, balbir@...ux.vnet.ibm.com,
	dave@...ux.vnet.ibm.com, nickpiggin@...oo.com.au, hugh@...itas.com,
	menage@...gle.com, xemul@...nvz.org, linux-kernel@...r.kernel.org,
	linux-mm@...ck.org
Subject: Re: [RFC][PATCH] Remove cgroup member from struct page (v3)

On Thu, 18 Sep 2008 13:26:13 +0900 (JST)
Hirokazu Takahashi <taka@...inux.co.jp> wrote:


> But I think each memory model type should have its own way of managing
> its page_cgroup arrays as doing for its struct page arrays.
> It would be better rather than the sparsemem approach he said.
> 
My patch adds an interface. Then...
FLATMEM support will be very easy.
I'll ignore DISCONTIGMEM and SPARSEMEM (they will use my 'hash')
SPARSEMEM_VMEMMAP support will took some amount of time. It will need
per-arch patches.

Thanks,
-Kame

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