diff --git a/mm/vmscan.c b/mm/vmscan.c
index 495889f621b5..ca786575b6c2 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -2536,7 +2536,8 @@ static void get_scan_count(struct lruvec *lruvec, struct scan_control *sc,
 
 	/*
 	 * If there is enough inactive page cache, we do not reclaim
-	 * anything from the anonymous working right now.
+	 * anything from the anonymous working right now to make sure
+         * a streaming file access pattern doesn't cause swapping.
 	 */
 	if (sc->cache_trim_mode) {
 		scan_balance = SCAN_FILE;