LXR linux/lib/cpumask.c

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