diff --git a/MAINTAINERS b/MAINTAINERS
index 886265f04061e61b36c27ee1af709123e1bd044d..5eede9e773a6269fb0125eed9a2b4d0319d91fd4 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -5023,6 +5023,7 @@ M:	Johannes Weiner <hannes@cmpxchg.org>
 M:	Michal Hocko <mhocko@kernel.org>
 M:	Roman Gushchin <roman.gushchin@linux.dev>
 M:	Shakeel Butt <shakeelb@google.com>
+R:	Muchun Song <songmuchun@bytedance.com>
 L:	cgroups@vger.kernel.org
 L:	linux-mm@kvack.org
 S:	Maintained