static int cpuset_cpu_inactive(struct notifier_block *nfb, unsigned long action,
			       void *hcpu)
{
	switch (action) {
	case CPU_DOWN_PREPARE:
		cpuset_update_active_cpus(false);
		break;
	case CPU_DOWN_PREPARE_FROZEN:
		num_cpus_frozen++;
		partition_sched_domains(1, NULL, NULL);
		break;
	default:
		return NOTIFY_DONE;
	}
	return NOTIFY_OK;
}

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