linux-kernel - Re: [RFC][PATCH 1/2] memcg: res

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Message-ID: <48463C14.4000705@cn.fujitsu.com>
Date:	Wed, 04 Jun 2008 14:54:12 +0800
From:	Li Zefan <lizf@...fujitsu.com>
To:	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>
CC:	"linux-mm@...ck.org" <linux-mm@...ck.org>,
	LKML <linux-kernel@...r.kernel.org>,
	"balbir@...ux.vnet.ibm.com" <balbir@...ux.vnet.ibm.com>,
	"menage@...gle.com" <menage@...gle.com>,
	"xemul@...nvz.org" <xemul@...nvz.org>,
	"yamamoto@...inux.co.jp" <yamamoto@...inux.co.jp>
Subject: Re: [RFC][PATCH 1/2] memcg: res_counter hierarchy

> Index: temp-2.6.26-rc2-mm1/Documentation/controllers/resource_counter.txt
> ===================================================================
> --- temp-2.6.26-rc2-mm1.orig/Documentation/controllers/resource_counter.txt
> +++ temp-2.6.26-rc2-mm1/Documentation/controllers/resource_counter.txt
> @@ -44,6 +44,13 @@ to work with it.
>   	Protects changes of the above values.
>  
>  
> + f. struct res_counter *parent
> +
> +	Parent res_counter under hierarchy.
> +
> + g. unsigned long long for_children
> +
> +	Resources assigned to children. This is included in usage.

Since parent and for_children are also protected by res_count->lock,
the above text should appear before 'e. spinlock_t lock'.
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