lzc_change_key
ret = lzc_change_key(zhp->zfs_name, cmd, props, wkeydata, wkeylen);
err = lzc_change_key(ozhp->zfs_name, DCP_CMD_FORCE_NEW_KEY,
err = lzc_change_key(ozhp->zfs_name, DCP_CMD_FORCE_NEW_KEY,
err = lzc_change_key(fsname,
err = lzc_change_key(fsname, DCP_CMD_FORCE_INHERIT,
int lzc_change_key(const char *, uint64_t, nvlist_t *, uint8_t *, uint_t);