linux-kernel - Re: [RFC][PATCH 4/6] Flat hierarchical reclaim by ID

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Message-Id: <20081210120317.5dce40fa.kamezawa.hiroyu@jp.fujitsu.com>
Date:	Wed, 10 Dec 2008 12:03:17 +0900
From:	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>
To:	balbir@...ux.vnet.ibm.com
Cc:	"linux-mm@...ck.org" <linux-mm@...ck.org>,
	"nishimura@....nes.nec.co.jp" <nishimura@....nes.nec.co.jp>,
	"lizf@...fujitsu.com" <lizf@...fujitsu.com>,
	"menage@...gle.com" <menage@...gle.com>,
	"kosaki.motohiro@...fujitsu.com" <kosaki.motohiro@...fujitsu.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [RFC][PATCH 4/6] Flat hierarchical reclaim by ID

On Wed, 10 Dec 2008 08:19:29 +0530
Balbir Singh <balbir@...ux.vnet.ibm.com> wrote:
> > >> >From implementation, hierarchy code management at el. should go into
> > >> cgroup.c and it gives us clear view rather than implemented under memcg.
> > >>
> > >
> > > cgroup has hierarchy management already, in the form of children and
> > > sibling. Walking those structures is up to us, that is all we do
> > > currently :)
> > >
> > yes, but need cgroup_lock(). and you have to keep refcnt to pointer
> > just for rememebring it.
> > 
> > This patch doesn't change anything other than removing cgroup_lock() and
> > removing refcnt to remember start point.
> >
> 
> OK, I'll play with it 
> 
I hear Kosaki has another idea to 5/6. So please ignore 5/6 for a while.
It's complicated. I'll post updated ones.

-Kame

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