diff --git a/include/linux/fs.h b/include/linux/fs.h
index 186da81..14a337c 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -426,6 +426,7 @@
 	/* migrate the contents of a page to the specified target */
 	int (*migratepage) (struct address_space *,
 			struct page *, struct page *);
+	int (*launder_page) (struct page *);
 };
 
 struct backing_dev_info;