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// SPDX-License-Identifier: GPL-2.0
#define _GNU_SOURCE
#include <linux/limits.h>
#include <unistd.h>
#include <stdio.h>
#include "../kselftest.h"
#include "cgroup_util.h"
#define T(x) { x, #x }
struct zswap_test {
int (*fn)(const char *root);
const char *name;
} tests[] = {
};
#undef T
static bool zswap_configured(void)
{
return access("/sys/module/zswap", F_OK) == 0;
}
int main(int argc, char **argv)
{
char root[PATH_MAX];
int i, ret = EXIT_SUCCESS;
if (cg_find_unified_root(root, sizeof(root)))
ksft_exit_skip("cgroup v2 isn't mounted\n");
if (!zswap_configured())
ksft_exit_skip("zswap isn't configured\n");
/*
* Check that memory controller is available:
* memory is listed in cgroup.controllers
*/
if (cg_read_strstr(root, "cgroup.controllers", "memory"))
ksft_exit_skip("memory controller isn't available\n");
if (cg_read_strstr(root, "cgroup.subtree_control", "memory"))
if (cg_write(root, "cgroup.subtree_control", "+memory"))
ksft_exit_skip("Failed to set memory controller\n");
for (i = 0; i < ARRAY_SIZE(tests); i++) {
switch (tests[i].fn(root)) {
case KSFT_PASS:
ksft_test_result_pass("%s\n", tests[i].name);
break;
case KSFT_SKIP:
ksft_test_result_skip("%s\n", tests[i].name);
break;
default:
ret = EXIT_FAILURE;
ksft_test_result_fail("%s\n", tests[i].name);
break;
}
}
return ret;
}
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