drbd_submit_peer_request
extern int drbd_submit_peer_request(struct drbd_peer_request *peer_req);
if (drbd_submit_peer_request(peer_req) == 0)
err = drbd_submit_peer_request(peer_req);
update_receiver_timing_details(connection, drbd_submit_peer_request);
if (drbd_submit_peer_request(peer_req) == 0)
err = drbd_submit_peer_request(peer_req);
if (drbd_submit_peer_request(peer_req) == 0)