diff --git a/fs/cifs/cifsproto.h b/fs/cifs/cifsproto.h
index d57cdf4..f309b43 100644
--- a/fs/cifs/cifsproto.h
+++ b/fs/cifs/cifsproto.h
@@ -472,6 +472,8 @@
 	int				result;
 	struct list_head		pages;
 	struct work_struct		work;
+	int (*marshal_iov) (struct cifs_readdata *rdata,
+			    unsigned int remaining);
 	unsigned int			nr_iov;
 	struct kvec			iov[1];
 };