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Re: [PATCH v2 2/3] mm: memcontrol: fix memcg id ref counter on swap charge move

From Johannes Weiner <hannes@cmpxchg.org>
Newsgroups linux.kernel
Subject Re: [PATCH v2 2/3] mm: memcontrol: fix memcg id ref counter on swap charge move
Date 2016-08-02 19:30 +0200
Message-ID <s1LFU-7yq-41@gated-at.bofh.it> (permalink)
References <s1KAb-6OZ-47@gated-at.bofh.it> <s1LFU-7yq-43@gated-at.bofh.it>
Organization linux.* mail to news gateway

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On Tue, Aug 02, 2016 at 06:00:49PM +0300, Vladimir Davydov wrote:
> Since commit 73f576c04b941 swap entries do not pin memcg->css.refcnt
> directly. Instead, they pin memcg->id.ref. So we should adjust the
> reference counters accordingly when moving swap charges between cgroups.
> 
> Fixes: 73f576c04b941 ("mm: memcontrol: fix cgroup creation failure after many small jobs")
> Signed-off-by: Vladimir Davydov <vdavydov@virtuozzo.com>
> Acked-by: Michal Hocko <mhocko@suse.com>
> Cc: <stable@vger.kernel.org>	[3.19+]

Acked-by: Johannes Weiner <hannes@cmpxchg.org>

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Re: [PATCH v2 2/3] mm: memcontrol: fix memcg id ref counter on swap  charge move Johannes Weiner <hannes@cmpxchg.org> - 2016-08-02 19:30 +0200

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