diff --git a/mm/vmscan.c b/mm/vmscan.c
index 2ff583edd2f86d8d08581809f22c51f735915614..23f8a5242de784a14c1a19d803e4f560a383aad5 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -2588,7 +2588,7 @@ static void get_scan_count(struct lruvec *lruvec, struct scan_control *sc,
 			cgroup_size = max(cgroup_size, protection);
 
 			scan = lruvec_size - lruvec_size * protection /
-				cgroup_size;
+				(cgroup_size + 1);
 
 			/*
 			 * Minimally target SWAP_CLUSTER_MAX pages to keep