linux-kernel - Re: [PATCH 1/2] memcg: root_mem

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Message-ID: <20120104084611.GA12581@tiehlicka.suse.cz>
Date:	Wed, 4 Jan 2012 09:46:11 +0100
From:	Michal Hocko <mhocko@...e.cz>
To:	kosaki.motohiro@...il.com
Cc:	linux-mm@...ck.org, linux-kernel@...r.kernel.org,
	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>,
	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>,
	Johannes Weiner <hannes@...xchg.org>, cgroups@...r.kernel.org
Subject: Re: [PATCH 1/2] memcg: root_mem_cgroup makes static

On Tue 03-01-12 18:33:51, kosaki.motohiro@...il.com wrote:
> From: KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>
> 
> root_mem_cgroup is only referenced from memcontrol.c. It should be static.

This has been already posted by Kirill
https://lkml.org/lkml/2011/12/23/292

> 
> Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>
> Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>
> Cc: Johannes Weiner <hannes@...xchg.org>
> Cc: Michal Hocko <mhocko@...e.cz>,
> Cc: cgroups@...r.kernel.org
> ---
>  mm/memcontrol.c |    2 +-
>  1 files changed, 1 insertions(+), 1 deletions(-)
> 
> diff --git a/mm/memcontrol.c b/mm/memcontrol.c
> index 90fdaeb..6adeeec 100644
> --- a/mm/memcontrol.c
> +++ b/mm/memcontrol.c
> @@ -59,7 +59,7 @@
>  
>  struct cgroup_subsys mem_cgroup_subsys __read_mostly;
>  #define MEM_CGROUP_RECLAIM_RETRIES	5
> -struct mem_cgroup *root_mem_cgroup __read_mostly;
> +static struct mem_cgroup *root_mem_cgroup __read_mostly;
>  
>  #ifdef CONFIG_CGROUP_MEM_RES_CTLR_SWAP
>  /* Turned on only when memory cgroup is enabled && really_do_swap_account = 1 */
> -- 
> 1.7.1
> 
> --
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-- 
Michal Hocko
SUSE Labs
SUSE LINUX s.r.o.
Lihovarska 1060/12
190 00 Praha 9    
Czech Republic
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