status_t
_user_stop_watching_disks(port_id port, int32 token)
{
	KDiskDeviceManager* manager = KDiskDeviceManager::Default();
	return manager->Notifications().RemoveUserListeners(port, token);
}
status_t
_user_start_watching_disks(uint32 eventMask, port_id port, int32 token)
{
	KDiskDeviceManager* manager = KDiskDeviceManager::Default();
	return manager->Notifications().UpdateUserListener(eventMask, port, token);
}