/* SPDX-License-Identifier: GPL-2.0 */
#include <stdbool.h>
#include <linux/limits.h>
#include <sys/ptrace.h>
#include <sys/types.h>
#include <sys/mman.h>
#include <unistd.h>
#include <stdio.h>
#include <errno.h>
#include <stdlib.h>
#include <string.h>
#include <sys/wait.h>
#include "kselftest.h"
#include "cgroup_util.h"
#define DEBUG
#ifdef DEBUG
#define debug(args...) fprintf(stderr, args)
#else
#define debug(args...)
#endif
/*
* Check if the cgroup is frozen by looking at the cgroup.events::frozen value.
*/
static int cg_check_frozen(const char *cgroup, bool frozen)
{
if (frozen) {
if (cg_read_strstr(cgroup, "cgroup.events", "frozen 1") != 0) {
