ZFS_IOC_ROLLBACK
{ (uint_t)ZFS_IOC_ROLLBACK, "ZFS_IOC_ROLLBACK",
err = lzc_ioctl(ZFS_IOC_ROLLBACK, fsname, args, &result);
err = lzc_ioctl(ZFS_IOC_ROLLBACK, fsname, args, &result);
IOC_INPUT_TEST(ZFS_IOC_ROLLBACK, dataset, NULL, optional, B_FALSE);
CHECK(ZFS_IOC_BASE + 25 == ZFS_IOC_ROLLBACK);
zfs_ioctl_register("rollback", ZFS_IOC_ROLLBACK,