drbd: Get rid of MR_{READ,WRITE}_SHIFT

Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>

drivers/block/drbd/drbd_main.c

@@ -368,8 +368,10 @@ void _tl_restart(struct drbd_tconn *tconn, enum drbd_req_event what)
 			req = list_entry(le, struct drbd_request, tl_requests);
 			rv = _req_mod(req, what);
 
-			n_writes += (rv & MR_WRITE) >> MR_WRITE_SHIFT;
-			n_reads  += (rv & MR_READ) >> MR_READ_SHIFT;
+			if (rv & MR_WRITE)
+				n_writes++;
+			if (rv & MR_READ)
+				n_reads++;
 		}
 		tmp = b->next;
 

drivers/block/drbd/drbd_req.h

@@ -235,10 +235,8 @@ enum drbd_req_state_bits {
 
 /* For waking up the frozen transfer log mod_req() has to return if the request
    should be counted in the epoch object*/
-#define MR_WRITE_SHIFT 0
-#define MR_WRITE       (1 << MR_WRITE_SHIFT)
-#define MR_READ_SHIFT  1
-#define MR_READ        (1 << MR_READ_SHIFT)
+#define MR_WRITE       1
+#define MR_READ        2
 
 static inline void drbd_req_make_private_bio(struct drbd_request *req, struct bio *bio_src)
 {