From: Kamezawa Hiroyuki <kamezawa.hiroyu-+CUm20s59erQFUHtdCDX3A@public.gmane.org>
Subject: Re: [PATCH 3/8] memcg: convert to use cgroup_is_ancestor()
Date: Tue, 09 Apr 2013 12:58:09 +0900
Message-ID: <516391D1.2060508@jp.fujitsu.com>
References: <51627DA9.7020507@huawei.com> <51627DFA.9050007@huawei.com>
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To: Li Zefan <lizefan-hv44wF8Li93QT0dZR+AlfA@public.gmane.org>
Cc: Andrew Morton <akpm-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org>, Tejun Heo <tj-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>, Glauber Costa <glommer-bzQdu9zFT3WakBO8gow8eQ@public.gmane.org>, Michal Hocko <mhocko-AlSwsSmVLrQ@public.gmane.org>, Johannes Weiner <hannes-druUgvl0LCNAfugRpC6u6w@public.gmane.org>, LKML <linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>, Cgroups <cgroups-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>, linux-mm-Bw31MaZKKs3YtjvyW6yDsg@public.gmane.org

(2013/04/08 17:21), Li Zefan wrote:
> This is a preparation to kill css_id.
> 
> Signed-off-by: Li Zefan <lizefan-hv44wF8Li93QT0dZR+AlfA@public.gmane.org>
> ---
>   mm/memcontrol.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/mm/memcontrol.c b/mm/memcontrol.c
> index 5aa6e91..14f1375 100644
> --- a/mm/memcontrol.c
> +++ b/mm/memcontrol.c
> @@ -1383,7 +1383,7 @@ bool __mem_cgroup_same_or_subtree(const struct mem_cgroup *root_memcg,
>   		return true;
>   	if (!root_memcg->use_hierarchy || !memcg)
>   		return false;
> -	return css_is_ancestor(&memcg->css, &root_memcg->css);
> +	return cgroup_is_ancestor(memcg->css.cgroup, root_memcg->css.cgroup);
>   }
>   
>   static bool mem_cgroup_same_or_subtree(const struct mem_cgroup *root_memcg,
> 

Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu-+CUm20s59erQFUHtdCDX3A@public.gmane.org>