linux-kernel - Re: [PATCH 1/6] atomic page

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Message-ID: <20081006074223.GA1202@balbir.in.ibm.com>
Date:	Mon, 6 Oct 2008 13:12:23 +0530
From:	Balbir Singh <balbir@...ux.vnet.ibm.com>
To:	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>
Cc:	"linux-mm@...ck.org" <linux-mm@...ck.org>,
	LKML <linux-kernel@...r.kernel.org>,
	"nishimura@....nes.nec.co.jp" <nishimura@....nes.nec.co.jp>
Subject: Re: [PATCH 1/6] atomic page_cgroup flags

* KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com> [2008-10-01 16:55:13]:

> This patch makes page_cgroup->flags to be atomic_ops and define
> functions (and macros) to access it.
> 
> Before trying to modify memory resource controller, this atomic operation
> on flags is necessary. Most of flags in this patch is for LRU and modfied
> under mz->lru_lock but we'll add another flags which is not for LRU soon.
> (lock_page_cgroup() will use LOCK bit on page_cgroup->flags)
> So we use atomic version here.
>

Seems quite straightforward

Acked-by: Balbir Singh <balbir@...ux.vnet.ibm.com> 

-- 
	Balbir
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