ZFS_IOC_WAIT
int error = lzc_ioctl(ZFS_IOC_WAIT, pool, args, &result);
IOC_INPUT_TEST(ZFS_IOC_WAIT, pool, required, optional, EINVAL);
CHECK(ZFS_IOC_BASE + 82 == ZFS_IOC_WAIT);
zfs_ioctl_register("wait", ZFS_IOC_WAIT,