diff --git a/fs/cifs/cifsproto.h b/fs/cifs/cifsproto.h
index cbf09cd..57ce6f8 100644
--- a/fs/cifs/cifsproto.h
+++ b/fs/cifs/cifsproto.h
@@ -490,6 +490,8 @@
 	pid_t				pid;
 	unsigned int			bytes;
 	int				result;
+	void (*marshal_iov) (struct kvec *iov,
+			     struct cifs_writedata *wdata);
 	unsigned int			nr_pages;
 	struct page			*pages[1];
 };