#include <linux/kernel.h>#include <linux/bitops.h>#include <linux/cpumask.h>#include <linux/module.h> int __first_cpu(const cpumask_t *srcp){	return min_t(int, NR_CPUS, find_first_bit(srcp->bits, NR_CPUS));}EXPORT_SYMBOL(__first_cpu); int __next_cpu(int n, const cpumask_t *srcp){	return min_t(int, NR_CPUS, find_next_bit(srcp->bits, NR_CPUS, n+1));}EXPORT_SYMBOL(__next_cpu); /* * Find the highest possible smp_processor_id() * * Note: if we're prepared to assume that cpu_possible_map never changes * (reasonable) then this function should cache its return value. */int highest_possible_processor_id(void){	unsigned int cpu;	unsigned highest = 0; 	for_each_cpu_mask(cpu, cpu_possible_map)		highest = cpu;	return highest;}EXPORT_SYMBOL(highest_possible_processor_id); int __any_online_cpu(const cpumask_t *mask){	int cpu; 	for_each_cpu_mask(cpu, *mask) {		if (cpu_online(cpu))			break;	}	return cpu;}EXPORT_SYMBOL(__any_online_cpu);