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Message-ID: <152698376317.3393.15242457477338422253.stgit@localhost.localdomain>
Date: Tue, 22 May 2018 13:09:23 +0300
From: Kirill Tkhai <ktkhai@...tuozzo.com>
To: akpm@...ux-foundation.org, vdavydov.dev@...il.com,
shakeelb@...gle.com, viro@...iv.linux.org.uk, hannes@...xchg.org,
mhocko@...nel.org, ktkhai@...tuozzo.com, tglx@...utronix.de,
pombredanne@...b.com, stummala@...eaurora.org,
gregkh@...uxfoundation.org, sfr@...b.auug.org.au, guro@...com,
mka@...omium.org, penguin-kernel@...ove.SAKURA.ne.jp,
chris@...is-wilson.co.uk, longman@...hat.com, minchan@...nel.org,
ying.huang@...el.com, mgorman@...hsingularity.net, jbacik@...com,
linux@...ck-us.net, linux-kernel@...r.kernel.org,
linux-mm@...ck.org, willy@...radead.org, lirongqing@...du.com,
aryabinin@...tuozzo.com
Subject: [PATCH v7 12/17] mm: Export mem_cgroup_is_root()
This will be used in next patch.
Signed-off-by: Kirill Tkhai <ktkhai@...tuozzo.com>
---
include/linux/memcontrol.h | 10 ++++++++++
mm/memcontrol.c | 5 -----
2 files changed, 10 insertions(+), 5 deletions(-)
diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h
index e51c6e953d7a..24abed028c6e 100644
--- a/include/linux/memcontrol.h
+++ b/include/linux/memcontrol.h
@@ -311,6 +311,11 @@ struct mem_cgroup {
extern struct mem_cgroup *root_mem_cgroup;
+static inline bool mem_cgroup_is_root(struct mem_cgroup *memcg)
+{
+ return (memcg == root_mem_cgroup);
+}
+
static inline bool mem_cgroup_disabled(void)
{
return !cgroup_subsys_enabled(memory_cgrp_subsys);
@@ -780,6 +785,11 @@ void mem_cgroup_split_huge_fixup(struct page *head);
struct mem_cgroup;
+static inline bool mem_cgroup_is_root(struct mem_cgroup *memcg)
+{
+ return true;
+}
+
static inline bool mem_cgroup_disabled(void)
{
return true;
diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index a86dfeaa9aa1..a886fc7398e9 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -261,11 +261,6 @@ struct cgroup_subsys_state *vmpressure_to_css(struct vmpressure *vmpr)
return &container_of(vmpr, struct mem_cgroup, vmpressure)->css;
}
-static inline bool mem_cgroup_is_root(struct mem_cgroup *memcg)
-{
- return (memcg == root_mem_cgroup);
-}
-
#ifdef CONFIG_MEMCG_KMEM
/*
* This will be the memcg's index in each cache's ->memcg_params.memcg_caches.
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