prison_racct_foreach
prison_racct_foreach(racct_decay_callback, racct_decay_pre,
prison_racct_foreach(racct_updatepcpu_racct_callback, racct_updatepcpu_pre,
prison_racct_foreach(rctl_rule_remove_callback,
prison_racct_foreach(rctl_get_rules_callback,
void prison_racct_foreach(void (*callback)(struct racct *racct,