diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h
index ea37a4342334..3283f5db1217 100644
--- a/include/linux/memcontrol.h
+++ b/include/linux/memcontrol.h
@@ -367,6 +367,11 @@ enum objext_flags {
 
 static inline bool folio_memcg_kmem(struct folio *folio);
 
+void do_traversal_all_lruvec(int (*callback)(struct mem_cgroup *memcg,
+					     struct lruvec *lruvec,
+					     void *private),
+			     void *private);
+
 /*
  * After the initialization objcg->memcg is always pointing at
  * a valid memcg, but can be atomically swapped to the parent memcg.
diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index 43ca0b458eb9..ddaba40255bb 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -1271,6 +1271,34 @@ struct lruvec *folio_lruvec_lock_irqsave(struct folio *folio,
 	return lruvec;
 }
 
+void do_traversal_all_lruvec(int (*callback)(struct mem_cgroup *memcg,
+					     struct lruvec *lruvec,
+					     void *private),
+			     void *private)
+{
+	pg_data_t *pgdat;
+	int ret;
+
+	for_each_online_pgdat(pgdat) {
+		struct mem_cgroup *memcg = NULL;
+
+		memcg = mem_cgroup_iter(NULL, NULL, NULL);
+		do {
+			struct lruvec *lruvec = mem_cgroup_lruvec(memcg, pgdat);
+
+			ret = callback(memcg, lruvec, private);
+			if (ret) {
+				mem_cgroup_iter_break(NULL, memcg);
+				break;
+			}
+
+			memcg = mem_cgroup_iter(NULL, memcg, NULL);
+		} while (memcg);
+	}
+}
+EXPORT_SYMBOL_GPL(do_traversal_all_lruvec);
+
+
 /**
  * mem_cgroup_update_lru_size - account for adding or removing an lru page
  * @lruvec: mem_cgroup per zone lru vector