/* get a map of all nodes that are heartbeating in any regions  */
void o2hb_fill_node_map(unsigned long *map, unsigned bytes)
/* get a map of all nodes that are heartbeating in any regions  */
void o2hb_fill_node_map(unsigned long *map, unsigned bytes)
{
	down_read(&o2hb_callback_sem);
	spin_lock(&o2hb_live_lock);
	o2hb_fill_node_map_from_callback(map, bytes);
	spin_unlock(&o2hb_live_lock);
	up_read(&o2hb_callback_sem);
}