diff --git a/[refs] b/[refs]
index 4ff36408a617..26e6040ea836 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: a57793651ff1a09ef18bade998632435ca2dc13f
+refs/heads/master: 53253383fde9e41bc07ad4d99f1c8b537fef71d6
diff --git a/trunk/mm/filemap.c b/trunk/mm/filemap.c
index 79f24a969cb4..920366399eed 100644
--- a/trunk/mm/filemap.c
+++ b/trunk/mm/filemap.c
@@ -25,6 +25,7 @@
 #include <linux/uio.h>
 #include <linux/hash.h>
 #include <linux/writeback.h>
+#include <linux/backing-dev.h>
 #include <linux/pagevec.h>
 #include <linux/blkdev.h>
 #include <linux/security.h>