From: Wanpeng Li <liwp@xxxxxxxxxxxxxxxxxx>
Signed-off-by: Wanpeng Li <liwp.linux@xxxxxxxxx>
---
mm/memcontrol.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index f72b5e5..776fc57 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -4873,7 +4873,7 @@ mem_cgroup_create(struct cgroup *cont)
goto free_out;
/* root ? */
- if (cont->parent == NULL) {
+ if (!(mem_cgroup_is_root(cont))) {
int cpu;
enable_swap_cgroup();
parent = NULL;
--
1.7.9.5
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