diff --git a/[refs] b/[refs]
index a6f2b7bb6229..e1da357700ee 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 66c4c35c6bc5a1a452b024cf0364635b28fd94e4
+refs/heads/master: 4de900b4d6b2216b7443d32e263f5de9078697a3
diff --git a/trunk/mm/slub.c b/trunk/mm/slub.c
index bc7a8af24f16..b6666eb3d9c4 100644
--- a/trunk/mm/slub.c
+++ b/trunk/mm/slub.c
@@ -29,6 +29,7 @@
 #include <linux/math64.h>
 #include <linux/fault-inject.h>
 #include <linux/stacktrace.h>
+#include <linux/prefetch.h>
 
 #include <trace/events/kmem.h>