cbs_endprev = (struct cds_wfq_node **)
uatomic_xchg(&default_call_rcu_data, cbs_tail);
*cbs_endprev = cbs;
uatomic_add(&default_call_rcu_data->qlen,
uatomic_read(&crdp->qlen));
cbs_endprev = (struct cds_wfq_node **)
uatomic_xchg(&default_call_rcu_data, cbs_tail);
*cbs_endprev = cbs;
uatomic_add(&default_call_rcu_data->qlen,
uatomic_read(&crdp->qlen));