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Multiply before divide, correcting a mistake introduced by revision 1.7. 

The loss of precision could be significant in some cases.
This commit is contained in:
fredb 2004-06-27 15:21:30 +00:00
parent 6b00b0a32b
commit 430f0ecf15
1 changed files with 3 additions and 3 deletions
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6
sys/kern/kern_microtime.c
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@ -1,4 +1,4 @@
/* $NetBSD: kern_microtime.c,v 1.9 2004/06/27 01:36:04 fredb Exp $ */
/* $NetBSD: kern_microtime.c,v 1.10 2004/06/27 15:21:30 fredb Exp $ */
/*-
* Copyright (c) 2001 The NetBSD Foundation, Inc.
@ -54,7 +54,7 @@
#include <sys/cdefs.h> /* RCS ID & Copyright macro defns */
__KERNEL_RCSID(0, "$NetBSD: kern_microtime.c,v 1.9 2004/06/27 01:36:04 fredb Exp $");
__KERNEL_RCSID(0, "$NetBSD: kern_microtime.c,v 1.10 2004/06/27 15:21:30 fredb Exp $");
#include "opt_multiprocessor.h"
@ -109,7 +109,7 @@ cc_microtime(struct timeval *tvp)
cc = cpu_counter32() - ci->ci_cc_cc;
if (cc < 0)
cc += 0x100000000LL;
t.tv_usec += (cc / (ci->ci_cc_denom / ci->ci_cc_ms_delta));
t.tv_usec += (cc * ci->ci_cc_ms_delta) / ci->ci_cc_denom;
while (t.tv_usec >= 1000000) {
t.tv_usec -= 1000000;
t.tv_sec++;