log_walk
(void) log_walk(l, log_item_free);
(void) log_walk(l, log_item_free);
extern int log_walk(log_t *, log_item_action_t);
(void) log_walk(prov->pkc_log, log_item_release);
(void) log_walk(prov->pkc_log, log_item_release);
(void) log_walk(prov->pkc_log, log_item_release);
if (log_walk(prov->pkc_log, log_item_commit) != PO_SUCCESS) {
(void) log_walk(prov->pkc_log, log_item_release);