Re: [PATCH 3/8] memcg: convert to use cgroup_is_ancestor()

[Michal Hocko]

On Mon 08-04-13 16:21:14, Li Zefan wrote:
> This is a preparation to kill css_id.
> 
> Signed-off-by: Li Zefan <lizefan@xxxxxxxxxx>

Acked-by: Michal Hocko <mhocko@xxxxxxx>

> ---
>  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,
> -- 
> 1.8.0.2
> 
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-- 
Michal Hocko
SUSE Labs
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