ZSD_NUM_RCTL_VALS
uint64_t vals[ZSD_NUM_RCTL_VALS];
if (write(p[1], vals, ZSD_NUM_RCTL_VALS * sizeof (uint64_t)) !=
ZSD_NUM_RCTL_VALS * sizeof (uint64_t)) {
if (read(p[0], vals, ZSD_NUM_RCTL_VALS * sizeof (uint64_t)) !=
ZSD_NUM_RCTL_VALS * sizeof (uint64_t)) {