From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S934901AbeCHCs7 (ORCPT ); Wed, 7 Mar 2018 21:48:59 -0500 Received: from mail-pl0-f68.google.com ([209.85.160.68]:36612 "EHLO mail-pl0-f68.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S934577AbeCHCs5 (ORCPT ); Wed, 7 Mar 2018 21:48:57 -0500 X-Google-Smtp-Source: AG47ELu1+zi9/O+H1P7ieJZQx6LwmZm7Z7ojJ64Gw1Pht7SkxVf/637peJ7tS3UhU2BH2xc1rJIuEg== From: Shakeel Butt 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 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> X-Mailer: git-send-email 2.16.2.395.g2e18187dfd-goog Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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