linux-kernel - [PATCH 1/2] mm: revert mem_cgroup

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Date:   Fri, 22 Jun 2018 17:05:59 -0700
From:   Roman Gushchin <guro@...com>
To:     <linux-mm@...ck.org>
CC:     <linux-kernel@...r.kernel.org>, <shakeelb@...gle.com>,
        <hannes@...xchg.org>, <mhocko@...nel.org>,
        <akpm@...ux-foundation.org>, Roman Gushchin <guro@...com>
Subject: [PATCH 1/2] mm: revert mem_cgroup_put() introduction

This patch should be folded into "mm, oom: cgroup-aware OOM killer".

Signed-off-by: Roman Gushchin <guro@...com>
---
 include/linux/memcontrol.h | 9 ---------
 1 file changed, 9 deletions(-)

diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h
index 3607913032be..cf1c3555328f 100644
--- a/include/linux/memcontrol.h
+++ b/include/linux/memcontrol.h
@@ -383,11 +383,6 @@ 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)
 
@@ -857,10 +852,6 @@ 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,
-- 
2.14.4