linux-kernel - Re: [patch 05/19] split LRU lists into anon & file sets

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Message-Id: <20080110113618.f967d215.kamezawa.hiroyu@jp.fujitsu.com>
Date:	Thu, 10 Jan 2008 11:36:18 +0900
From:	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>
To:	balbir@...ux.vnet.ibm.com
Cc:	Rik van Riel <riel@...hat.com>, linux-kernel@...r.kernel.org,
	linux-mm@...ck.org, Lee Schermerhorn <Lee.Schermerhorn@...com>
Subject: Re: [patch 05/19] split LRU lists into anon & file sets

On Thu, 10 Jan 2008 07:51:33 +0530
Balbir Singh <balbir@...ux.vnet.ibm.com> wrote:

> > >  #define PAGE_CGROUP_FLAG_CACHE	(0x1)	/* charged as cache */
> > >  #define PAGE_CGROUP_FLAG_ACTIVE (0x2)	/* page is active in this cgroup */
> > > +#define PAGE_CGROUP_FLAG_FILE	(0x4)	/* page is file system backed */
> > > 
> > 
> > Now, we don't have control_type and a feature for accounting only CACHE.
> > Balbir-san, do you have some new plan ?
> >
> 
> Hi, KAMEZAWA-San,
> 
> The control_type feature is gone. We still have cached page
> accounting, but we do not allow control of only RSS pages anymore. We
> need to control both RSS+cached pages. I do not understand your
> question about new plan? Is it about adding back control_type?
> 
Ah, just wanted to confirm that we can drop PAGE_CGROUP_FLAG_CACHE
if page_file_cache() function and split-LRU is introduced.


Thanks you.

-Kame

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