[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-Id: <20080110132316.4f604724.kamezawa.hiroyu@jp.fujitsu.com>
Date: Thu, 10 Jan 2008 13:23:16 +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 08:56:31 +0530
Balbir Singh <balbir@...ux.vnet.ibm.com> wrote:
> > > 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.
> >
>
> Earlier we would have had a problem, since we even accounted for swap
> cache with PAGE_CGROUP_FLAG_CACHE and I think page_file_cache() does
> not account swap cache pages with page_file_cache(). Our accounting
> is based on mapped vs unmapped whereas the new code from Rik accounts
> file vs anonymous. I suspect we could live a little while longer
> with PAGE_CGROUP_FLAG_CACHE and then if we do not need it at all,
> we can mark it down for removal. What do you think?
Okay, I have no objection.
Thanks,
-Kame
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists