From 5e537e0adeed28d8ff9a56d30024994d5e867894 Mon Sep 17 00:00:00 2001
From: Rik van Riel <riel@redhat.com>
Date: Wed, 19 Nov 2008 15:36:44 -0800
Subject: [PATCH] --- yaml --- r: 119198 b: refs/heads/master c:
 00d8089c54867053a5aae062b765f257ca419e27 h: refs/heads/master v: v3

---
 [refs]            | 2 +-
 trunk/mm/vmscan.c | 6 +++---
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/[refs] b/[refs]
index b006fe74b84c..99d379bf5af3 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 8e324c19f57cc05922e9cc0f338b58108da45539
+refs/heads/master: 00d8089c54867053a5aae062b765f257ca419e27
diff --git a/trunk/mm/vmscan.c b/trunk/mm/vmscan.c
index f83a7ed5c6c4..7ea1440b53db 100644
--- a/trunk/mm/vmscan.c
+++ b/trunk/mm/vmscan.c
@@ -1389,9 +1389,9 @@ static void get_scan_ratio(struct zone *zone, struct scan_control *sc,
 	file_prio = 200 - sc->swappiness;
 
 	/*
-	 *                  anon       recent_rotated[0]
-	 * %anon = 100 * ----------- / ----------------- * IO cost
-	 *               anon + file      rotate_sum
+	 * The amount of pressure on anon vs file pages is inversely
+	 * proportional to the fraction of recently scanned pages on
+	 * each list that were recently referenced and in active use.
 	 */
 	ap = (anon_prio + 1) * (zone->recent_scanned[0] + 1);
 	ap /= zone->recent_rotated[0] + 1;