diff --git a/mm/filemap.c b/mm/filemap.c
index ee83baaf855d555eac2f06a8adbd333836b3e6f7..693f62212a59a704dec99516d1d8a975b59bc7ee 100644
--- a/mm/filemap.c
+++ b/mm/filemap.c
@@ -31,7 +31,6 @@
 #include <linux/blkdev.h>
 #include <linux/security.h>
 #include <linux/cpuset.h>
-#include <linux/hardirq.h> /* for BUG_ON(!in_atomic()) only */
 #include <linux/hugetlb.h>
 #include <linux/memcontrol.h>
 #include <linux/cleancache.h>