diff mbox

[v7,REBASED,12/17] mm: Export mem_cgroup_is_root()

Message ID 152931521067.28457.1399177856448274667.stgit@localhost.localdomain (mailing list archive)
State New, archived
Headers show

Commit Message

Kirill Tkhai June 18, 2018, 9:46 a.m. UTC 
This will be used in next patch.

Signed-off-by: Kirill Tkhai <ktkhai@virtuozzo.com>
Acked-by: Vladimir Davydov <vdavydov.dev@gmail.com>
Tested-by: Shakeel Butt <shakeelb@google.com>
---
 include/linux/memcontrol.h |   10 ++++++++++
 mm/memcontrol.c            |    5 -----
 2 files changed, 10 insertions(+), 5 deletions(-)
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Patch

diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h
index 40401a73000e..7ef004c4f4af 100644
--- a/include/linux/memcontrol.h
+++ b/include/linux/memcontrol.h
@@ -318,6 +318,11 @@  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);
@@ -771,6 +776,11 @@  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 2b703c4130bb..a122572c0219 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.