linux-kernel - Re: [PATCH 2/2] cgroup: reset css on destruction

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Message-ID: <20160301163018.GE3965@htj.duckdns.org>
Date:	Tue, 1 Mar 2016 11:30:18 -0500
From:	Tejun Heo <tj@...nel.org>
To:	Vladimir Davydov <vdavydov@...tuozzo.com>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Johannes Weiner <hannes@...xchg.org>,
	Michal Hocko <mhocko@...nel.org>, cgroups@...r.kernel.org,
	linux-mm@...ck.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/2] cgroup: reset css on destruction

On Tue, Mar 01, 2016 at 02:13:13PM +0300, Vladimir Davydov wrote:
> @@ -5138,6 +5138,8 @@ static void kill_css(struct cgroup_subsys_state *css)
>  	 * See seq_css() for details.
>  	 */
>  	css_clear_dir(css, NULL);
> +	if (css->ss->css_reset)
> +		css->ss->css_reset(css);

I think the better spot for this is in offline_css() right before
->css_offline() is called.

Thanks.

-- 
tejun