diff --git a/[refs] b/[refs]
index 2430fa87e05f..3e37d53303c7 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 080e2be7884322daffe75a831e879fbe7de383ab
+refs/heads/master: e21c7ffd6f7493aa01bccd17ebc13dbdfecce880
diff --git a/trunk/mm/thrash.c b/trunk/mm/thrash.c
index fabf2d0f5169..d416d403e140 100644
--- a/trunk/mm/thrash.c
+++ b/trunk/mm/thrash.c
@@ -6,7 +6,7 @@
  * Released under the GPL, see the file COPYING for details.
  *
  * Simple token based thrashing protection, using the algorithm
- * described in:  http://www.cs.wm.edu/~sjiang/token.pdf
+ * described in: http://www.cse.ohio-state.edu/hpcs/WWW/HTML/publications/abs05-1.html
  *
  * Sep 2006, Ashwin Chaugule <ashwin.chaugule@celunite.com>
  * Improved algorithm to pass token: