diff --git a/[refs] b/[refs]
index bd7c2b9e8bd1..30710e945b2d 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 68cacd29167b1926d237bd1b153aa2a990201729
+refs/heads/master: 880f57318450dbead6a03f9e31a1468924d6dd88
diff --git a/trunk/kernel/perf_event.c b/trunk/kernel/perf_event.c
index 0c714226ae0c..c75925c4d1e2 100644
--- a/trunk/kernel/perf_event.c
+++ b/trunk/kernel/perf_event.c
@@ -145,7 +145,8 @@ static struct srcu_struct pmus_srcu;
  */
 int sysctl_perf_event_paranoid __read_mostly = 1;
 
-int sysctl_perf_event_mlock __read_mostly = 512; /* 'free' kb per user */
+/* Minimum for 128 pages + 1 for the user control page */
+int sysctl_perf_event_mlock __read_mostly = 516; /* 'free' kb per user */
 
 /*
  * max perf event sample rate