static int cacheinfo_cpu_pre_down(unsigned int cpu)
{
	if (cpumask_test_and_clear_cpu(cpu, &cache_dev_map))
		cpu_cache_sysfs_exit(cpu);

	free_cache_attributes(cpu);
	return 0;
}
static int cacheinfo_cpu_pre_down(unsigned int cpu)
{
	if (cpumask_test_and_clear_cpu(cpu, &cache_dev_map))
		cpu_cache_sysfs_exit(cpu);

	free_cache_attributes(cpu);
	return 0;
}