persistent_disc_addr_next
while (persistent_disc_addr_next(&void_p, &e) == B_TRUE) {
while (persistent_disc_addr_next(&v, &entry) == B_TRUE) {
while (persistent_disc_addr_next(&void_p, &e) == B_TRUE) {
while (persistent_disc_addr_next(&void_p, &e) ==
while (persistent_disc_addr_next(&v, entry) == B_TRUE) {
boolean_t persistent_disc_addr_next(void **v, entry_t *e);