ZFS_IOC_POOL_CHECKPOINT
{ (uint_t)ZFS_IOC_POOL_CHECKPOINT, "ZFS_IOC_POOL_CHECKPOINT",
error = lzc_ioctl(ZFS_IOC_POOL_CHECKPOINT, pool, args, &result);
IOC_INPUT_TEST(ZFS_IOC_POOL_CHECKPOINT, pool, NULL, NULL, 0);
CHECK(ZFS_IOC_BASE + 76 == ZFS_IOC_POOL_CHECKPOINT);
zfs_ioctl_register("zpool_checkpoint", ZFS_IOC_POOL_CHECKPOINT,