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Use the correct type (uint64_t) to retrieve sysctl machdep.tsc_freq.

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Simplify the function a bit by falling through after initialization and
return via the normal code path.

Reviewed by:	grehan
Obtained from:	NetApp
This commit is contained in:
Neel Natu 2013-01-25 06:27:03 +00:00
parent 4503502994
commit 1caafc47a3
1 changed files with 2 additions and 5 deletions
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7
usr.sbin/bhyve/pmtmr.c
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@ -66,17 +66,14 @@ pmtmr_val(void)
if (!inited) {
size_t len;
uint32_t tmpf;
inited = 1;
pthread_mutex_init(&pmtmr_mtx, NULL);
len = sizeof(tmpf);
sysctlbyname("machdep.tsc_freq", &tmpf, &len,
len = sizeof(pmtmr_tscf);
sysctlbyname("machdep.tsc_freq", &pmtmr_tscf, &len,
NULL, 0);
pmtmr_tscf = tmpf;
pmtmr_tsc_old = rdtsc();
pmtmr_old = pmtmr_tsc_old / pmtmr_tscf * PMTMR_FREQ;
return (pmtmr_old);
}
pthread_mutex_lock(&pmtmr_mtx);