linux-kernel - Re: [PATCH 9/12] memcg allocate all page

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Date:	Thu, 25 Sep 2008 11:40:47 -0700
From:	Dave Hansen <dave@...ux.vnet.ibm.com>
To:	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>
Cc:	"linux-mm@...ck.org" <linux-mm@...ck.org>,
	"balbir@...ux.vnet.ibm.com" <balbir@...ux.vnet.ibm.com>,
	"nishimura@....nes.nec.co.jp" <nishimura@....nes.nec.co.jp>,
	"xemul@...nvz.org" <xemul@...nvz.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	LKML <linux-kernel@...r.kernel.org>,
	Dave Hansen <haveblue@...ibm.com>, ryov@...inux.co.jp
Subject: Re: [PATCH 9/12] memcg allocate all page_cgroup at boot

On Thu, 2008-09-25 at 15:32 +0900, KAMEZAWA Hiroyuki wrote:
> @@ -949,6 +953,11 @@ struct mem_section {
> 
>         /* See declaration of similar field in struct zone */
>         unsigned long *pageblock_flags;
> +#ifdef CONFIG_CGROUP_MEM_RES_CTLR
> +       /* see page_cgroup.h */
> +       struct page_cgroup *page_cgroup;
> +       unsigned long pad;
> +#endif
>  };

I thought the use of this variable was under the

	+#ifdef CONFIG_FLAT_NODE_MEM_MAP

options.  Otherwise, we unconditionally bloat mem_section, right?

-- Dave

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