This will be used in next patch.
Signed-off-by: Kirill Tkhai <ktkhai@xxxxxxxxxxxxx>
---
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 7ae1b94becf3..cd44c1fac22b 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 false;
+}
+
static inline bool mem_cgroup_disabled(void)
{
return true;
diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index 8afabac77b86..bbcb3d2c0a50 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.
