drbd: Rename w_prev_work_done -> w_complete

Also move it to drbd_receiver.c and make it static.
Signed-off-by: Andreas Gruenbacher <agruen@linbit.com>
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>

drivers/block/drbd/drbd_int.h

@@ -1326,7 +1326,6 @@ extern int w_send_write_hint(struct drbd_work *, int);
 extern int w_make_resync_request(struct drbd_work *, int);
 extern int w_send_dblock(struct drbd_work *, int);
 extern int w_send_read_req(struct drbd_work *, int);
-extern int w_prev_work_done(struct drbd_work *, int);
 extern int w_e_reissue(struct drbd_work *, int);
 extern int w_restart_disk_io(struct drbd_work *, int);
 extern int w_send_out_of_sync(struct drbd_work *, int);

drivers/block/drbd/drbd_receiver.c

@@ -4482,11 +4482,19 @@ static void drbdd(struct drbd_connection *connection)
 	conn_request_state(connection, NS(conn, C_PROTOCOL_ERROR), CS_HARD);
 }
 
+static int w_complete(struct drbd_work *w, int cancel)
+{
+	struct drbd_wq_barrier *b = container_of(w, struct drbd_wq_barrier, w);
+
+	complete(&b->done);
+	return 0;
+}
+
 void conn_flush_workqueue(struct drbd_connection *connection)
 {
 	struct drbd_wq_barrier barr;
 
-	barr.w.cb = w_prev_work_done;
+	barr.w.cb = w_complete;
 	barr.w.connection = connection;
 	init_completion(&barr.done);
 	drbd_queue_work(&connection->sender_work, &barr.w);

drivers/block/drbd/drbd_worker.c

@@ -1262,14 +1262,6 @@ int w_e_end_ov_reply(struct drbd_work *w, int cancel)
 	return err;
 }
 
-int w_prev_work_done(struct drbd_work *w, int cancel)
-{
-	struct drbd_wq_barrier *b = container_of(w, struct drbd_wq_barrier, w);
-
-	complete(&b->done);
-	return 0;
-}
-
 /* FIXME
  * We need to track the number of pending barrier acks,
  * and to be able to wait for them.