diff --git a/mm/vmscan.c b/mm/vmscan.c
index 33dc256033b5020c3679a4578af854c640fc826a..091ab8f88333974edfba2334f4df9ffb762b26b1 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -1894,7 +1894,8 @@ static int vmscan_swappiness(struct mem_cgroup_zone *mz,
  * by looking at the fraction of the pages scanned we did rotate back
  * onto the active list instead of evict.
  *
- * nr[0] = anon pages to scan; nr[1] = file pages to scan
+ * nr[0] = anon inactive pages to scan; nr[1] = anon active pages to scan
+ * nr[2] = file inactive pages to scan; nr[3] = file active pages to scan
  */
 static void get_scan_count(struct mem_cgroup_zone *mz, struct scan_control *sc,
 			   unsigned long *nr, int priority)