1 #include <linux/kernel.h> 2 #include <linux/bitops.h> 3 #include <linux/cpumask.h> 4 #include <linux/module.h> 5 6 int __first_cpu(const cpumask_t *srcp) 7 { 8 return min_t(int, NR_CPUS, find_first_bit(srcp->bits, NR_CPUS)); 9 } 10 EXPORT_SYMBOL(__first_cpu); 11 12 int __next_cpu(int n, const cpumask_t *srcp) 13 { 14 return min_t(int, NR_CPUS, find_next_bit(srcp->bits, NR_CPUS, n+1)); 15 } 16 EXPORT_SYMBOL(__next_cpu); 17 18 int nr_cpu_ids; 19 EXPORT_SYMBOL(nr_cpu_ids); 20 21 int __any_online_cpu(const cpumask_t *mask) 22 { 23 int cpu; 24 25 for_each_cpu_mask(cpu, *mask) { 26 if (cpu_online(cpu)) 27 break; 28 } 29 return cpu; 30 } 31 EXPORT_SYMBOL(__any_online_cpu); 32