drbd: renamed drbd_tl_epoch.n_req to drbd_tl_epoch.n_writes

Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
diff --git a/drivers/block/drbd/drbd_int.h b/drivers/block/drbd/drbd_int.h
index 352441b..11b7c6f 100644
--- a/drivers/block/drbd/drbd_int.h
+++ b/drivers/block/drbd/drbd_int.h
@@ -697,7 +697,7 @@
 	struct list_head requests; /* requests before */
 	struct drbd_tl_epoch *next; /* pointer to the next barrier */
 	unsigned int br_number;  /* the barriers identifier. */
-	int n_req;	/* number of requests attached before this barrier */
+	int n_writes;	/* number of requests attached before this barrier */
 };
 
 struct drbd_request;