diff options
Diffstat (limited to 'lib/libthr/thread/thr_attr.c')
| -rw-r--r-- | lib/libthr/thread/thr_attr.c | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/lib/libthr/thread/thr_attr.c b/lib/libthr/thread/thr_attr.c index 7fe50034..bc8eabb 100644 --- a/lib/libthr/thread/thr_attr.c +++ b/lib/libthr/thread/thr_attr.c @@ -574,13 +574,14 @@ _get_kern_cpuset_size(void) if (kern_cpuset_size == 0) { size_t len; + int maxcpus; - len = sizeof(kern_cpuset_size); - if (sysctlbyname("kern.smp.maxcpus", &kern_cpuset_size, - &len, NULL, 0)) + len = sizeof(maxcpus); + if (sysctlbyname("kern.smp.maxcpus", &maxcpus, &len, NULL, 0)) PANIC("failed to get sysctl kern.smp.maxcpus"); - - kern_cpuset_size = (kern_cpuset_size + 7) / 8; + int nbits_long = sizeof(long) * NBBY; + int num_long = (maxcpus + nbits_long - 1) / nbits_long; + kern_cpuset_size = num_long * sizeof(long); } return (kern_cpuset_size); |
