From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pl0-f72.google.com (mail-pl0-f72.google.com [209.85.160.72]) by kanga.kvack.org (Postfix) with ESMTP id 6CFC46B0003 for ; Wed, 7 Mar 2018 21:48:58 -0500 (EST) Received: by mail-pl0-f72.google.com with SMTP id 101-v6so2099212ple.19 for ; Wed, 07 Mar 2018 18:48:58 -0800 (PST) Received: from mail-sor-f65.google.com (mail-sor-f65.google.com. [209.85.220.65]) by mx.google.com with SMTPS id e29-v6sor6108592plj.14.2018.03.07.18.48.57 for (Google Transport Security); Wed, 07 Mar 2018 18:48:57 -0800 (PST) From: Shakeel Butt Subject: [PATCH] mm: memcg: expose mem_cgroup_put API Date: Wed, 7 Mar 2018 18:48:50 -0800 Message-Id: <20180308024850.39737-1-shakeelb@google.com> Sender: owner-linux-mm@kvack.org List-ID: To: Roman Gushchin , Vladimir Davydov , Michal Hocko , Greg Thelen , Johannes Weiner , Andrew Morton Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org, cgroups@vger.kernel.org, Shakeel Butt This patch exports mem_cgroup_put API to put the refcnt of the memory cgroup. Signed-off-by: Shakeel Butt --- include/linux/memcontrol.h | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h index c46016bb25eb..0da79e116a07 100644 --- a/include/linux/memcontrol.h +++ b/include/linux/memcontrol.h @@ -344,6 +344,11 @@ struct mem_cgroup *mem_cgroup_from_css(struct cgroup_subsys_state *css){ return css ? container_of(css, struct mem_cgroup, css) : NULL; } +static inline void mem_cgroup_put(struct mem_cgroup *memcg) +{ + css_put(&memcg->css); +} + #define mem_cgroup_from_counter(counter, member) \ container_of(counter, struct mem_cgroup, member) @@ -789,6 +794,10 @@ static inline bool task_in_mem_cgroup(struct task_struct *task, return true; } +static inline void mem_cgroup_put(struct mem_cgroup *memcg) +{ +} + static inline struct mem_cgroup * mem_cgroup_iter(struct mem_cgroup *root, struct mem_cgroup *prev, -- 2.16.2.395.g2e18187dfd-goog