linux-kernel - Re: linux-next: build failure after merge of the akpm-current tree

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Date:	Mon, 21 Sep 2015 20:10:29 +1000
From:	Stephen Rothwell <sfr@...b.auug.org.au>
To:	Michal Hocko <mhocko@...nel.org>,
	Vladimir Davydov <vdavydov@...allels.com>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Tejun Heo <tj@...nel.org>, linux-next@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: linux-next: build failure after merge of the akpm-current tree

Hi Michal, Vladimir,

On Mon, 21 Sep 2015 09:58:53 +0200 Michal Hocko <mhocko@...nel.org> wrote:
>
> AFAIU your fix is correct but using
> cgroup_subsys_on_dfl(memory_cgrp_subsys) is more appropriate:
> diff --git a/mm/vmscan.c b/mm/vmscan.c
> index d62924ee8022..c3df03add73e 100644
> --- a/mm/vmscan.c
> +++ b/mm/vmscan.c
> @@ -176,7 +176,7 @@ static bool sane_reclaim(struct scan_control *sc)
>  	if (!memcg)
>  		return true;
>  #ifdef CONFIG_CGROUP_WRITEBACK
> -	if (cgroup_on_dfl(memcg->css.cgroup))
> +	if (cgroup_subsys_on_dfl(memory_cgrp_subsys))
>  		return true;
>  #endif
>  	return false;

Thanks, I will do that from tomorrow.

-- 
Cheers,
Stephen Rothwell                    sfr@...b.auug.org.au
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