ZFS_CANMOUNT_OFF
if (canmount == ZFS_CANMOUNT_OFF) {
{ "off", ZFS_CANMOUNT_OFF },
(fnvpair_value_uint64(elem) == ZFS_CANMOUNT_OFF &&
if (zfs_prop_get_int(zhp, ZFS_PROP_CANMOUNT) == ZFS_CANMOUNT_OFF)