int vt_kmsg_redirect(int new)
{
	static int kmsg_con;

	if (new != -1)
		return xchg(&kmsg_con, new);
	else
		return kmsg_con;
}
int vt_kmsg_redirect(int new)
{
	static int kmsg_con;

	if (new != -1)
		return xchg(&kmsg_con, new);
	else
		return kmsg_con;
}