device_busy
device_busy(dev);
device_busy(fd->dev);
device_busy(dev->dev->bsddev);
device_busy(sc->dev);
device_busy(sc->aac_dev);
device_busy(devclass_get_device(bktr_devclass, unit));
device_busy(devclass_get_device(cxm_devclass, unit));
device_busy(dev->parent);
void device_busy(device_t dev);
long double elapsed_time, device_busy;
device_busy = compute_etime(now->dinfo->devices[di].busy_time, then ?
if ((device_busy == 0) &&
device_busy = elapsed_time;
if (device_busy > elapsed_time) {
device_busy = elapsed_time;
putlongdouble(device_busy * 100 / elapsed_time,