numa_demotion_enabled
extern bool numa_demotion_enabled;
bool numa_demotion_enabled = false;
return sysfs_emit(buf, "%s\n", str_true_false(numa_demotion_enabled));
bool before = numa_demotion_enabled;
ret = kstrtobool(buf, &numa_demotion_enabled);
if (before == false && numa_demotion_enabled == true) {
if (!pgdat || !numa_demotion_enabled)