static int xen_restart(struct notifier_block *nb, unsigned long action,
		       void *data)
{
	xen_reboot(SHUTDOWN_reboot);

	return NOTIFY_DONE;
}
static int xen_restart(struct notifier_block *nb, unsigned long action,
		       void *data)
{
	xen_reboot(SHUTDOWN_reboot);

	return NOTIFY_DONE;
}