linux-kernel - Re: [PATCH] [Cleanup] memcg: export memory cgroup's swappiness v2

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Message-ID: <BANLkTikavaLfBxHnpVQYwnHjJn-Sa_UD0w@mail.gmail.com>
Date:	Wed, 29 Jun 2011 18:30:44 +0530
From:	Balbir Singh <bsingharora@...il.com>
To:	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>
Cc:	"linux-mm@...ck.org" <linux-mm@...ck.org>,
	"akpm@...ux-foundation.org" <akpm@...ux-foundation.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"nishimura@....nes.nec.co.jp" <nishimura@....nes.nec.co.jp>,
	Michal Hocko <mhocko@...e.cz>, Ying Han <yinghan@...gle.com>
Subject: Re: [PATCH] [Cleanup] memcg: export memory cgroup's swappiness v2

On Wed, Jun 29, 2011 at 3:33 PM, KAMEZAWA Hiroyuki
<kamezawa.hiroyu@...fujitsu.com> wrote:
> This is onto 3 patches I posted yesterday.
> I'm sorry I once got Acks in v1 but refleshed totally.
> ==
> From fda72071ee473be1caee163920da0f5c397c95e8 Mon Sep 17 00:00:00 2001
> From: KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>
> Date: Wed, 29 Jun 2011 18:24:49 +0900
> Subject: [PATCH] export memory cgroup's swappines
>
> Each memory cgroup has 'swappiness' value and it can be accessed by
> get_swappiness(memcg). The major user is try_to_free_mem_cgroup_pages()
> and swappiness is passed by argument. It's propagated by scan_control.
>
> get_swappiness is static function but some planned updates will need to
> get swappiness from files other than memcontrol.c
> This patch exports get_swappiness() as mem_cgroup_swappiness().
> By this, we can remove the argument of swapiness from try_to_free...
> and drop swappiness from scan_control. only memcg uses it.
>
> Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>
Good refactoring

Acked-by: Balbir Singh <bsingharora@...il.com>

Thanks,
Balbir Singh
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