drbd_al_complete_io
extern void drbd_al_complete_io(struct drbd_device *device, struct drbd_interval *i);
drbd_al_complete_io(device, &peer_req->i);
drbd_al_complete_io(device, &peer_req->i);
drbd_al_complete_io(device, &req->i);
drbd_al_complete_io(device, &i);