PATH_ZSWAP_ENABLED
if (read_text(PATH_ZSWAP_ENABLED, value, sizeof(value)) <= 0)
ksft_exit_fail_msg("Failed to read " PATH_ZSWAP_ENABLED "\n");
ksft_exit_skip("zswap is disabled (hint: echo 1 > " PATH_ZSWAP_ENABLED ")\n");