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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 | #if NR_CPUS > 64 | |
19 | int __next_cpu_nr(int n, const cpumask_t *srcp) | |
20 | { | |
21 | return min_t(int, nr_cpu_ids, | |
22 | find_next_bit(srcp->bits, nr_cpu_ids, n+1)); | |
23 | } | |
24 | EXPORT_SYMBOL(__next_cpu_nr); | |
25 | #endif | |
26 | ||
27 | int __any_online_cpu(const cpumask_t *mask) | |
28 | { | |
29 | int cpu; | |
30 | ||
31 | for_each_cpu_mask(cpu, *mask) { | |
32 | if (cpu_online(cpu)) | |
33 | break; | |
34 | } | |
35 | return cpu; | |
36 | } | |
37 | EXPORT_SYMBOL(__any_online_cpu); |