Use sysctl kern.sched.cpusetsize to retrieve size of kernel cpuset.
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svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=214653
@ -569,14 +569,11 @@ _get_kern_cpuset_size(void)
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if (kern_cpuset_size == 0) {
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size_t len;
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int maxcpus;
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len = sizeof(maxcpus);
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if (sysctlbyname("kern.smp.maxcpus", &maxcpus, &len, NULL, 0))
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PANIC("failed to get sysctl kern.smp.maxcpus");
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int nbits_long = sizeof(long) * NBBY;
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int num_long = (maxcpus + nbits_long - 1) / nbits_long;
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kern_cpuset_size = num_long * sizeof(long);
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len = sizeof(kern_cpuset_size);
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if (sysctlbyname("kern.sched.cpusetsize", &kern_cpuset_size,
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&len, NULL, 0))
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PANIC("failed to get sysctl kern.sched.cpusetsize");
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}
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return (kern_cpuset_size);
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