dlm_hb_event_notify_attached
void dlm_hb_event_notify_attached(struct dlm_ctxt *dlm, int idx, int node_up);
dlm_hb_event_notify_attached(dlm, node, 0);
dlm_hb_event_notify_attached(dlm, assert->node_idx, 1);
dlm_hb_event_notify_attached(dlm, idx, 0);