sysctl_set
if (!ASSERT_OK(sysctl_set("/proc/sys/kernel/perf_event_paranoid", perf_event_paranoid_orig,
ret = sysctl_set("/proc/sys/kernel/unprivileged_bpf_disabled",
sysctl_set("/proc/sys/kernel/perf_event_paranoid", NULL, perf_event_paranoid_orig);
sysctl_set("/proc/sys/kernel/unprivileged_bpf_disabled", NULL,
err = sysctl_set(sysctl_path, old_val, new_val);
int sysctl_set(const char *sysctl_path, char *old_val, const char *new_val);