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The pessimistic rounding in hzto() was too pessimistic for realitimexpire().

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This commit is contained in:
Bruce Evans 1995-06-26 07:48:50 +00:00
parent 4ebf8117df
commit 9207f00ac0
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=9327
1 changed files with 6 additions and 2 deletions
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8
sys/kern/kern_time.c
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@ -31,7 +31,7 @@
* SUCH DAMAGE. * SUCH DAMAGE.
* *
* @(#)kern_time.c 8.1 (Berkeley) 6/10/93 * @(#)kern_time.c 8.1 (Berkeley) 6/10/93
* $Id: kern_time.c,v 1.7 1995/03/16 18:12:38 bde Exp $ * $Id: kern_time.c,v 1.8 1995/05/30 08:05:47 rgrimes Exp $
*/ */
#include <sys/param.h> #include <sys/param.h>
@ -295,6 +295,10 @@ setitimer(p, uap, retval)
* Else compute next time timer should go off which is > current time. * Else compute next time timer should go off which is > current time.
* This is where delay in processing this timeout causes multiple * This is where delay in processing this timeout causes multiple
* SIGALRM calls to be compressed into one. * SIGALRM calls to be compressed into one.
* hzto() always adds 1 to allow for the time until the next clock
* interrupt being strictly less than 1 clock tick, but we don't want
* that here since we want to appear to be in sync with the clock
* interrupt even when we're delayed.
*/ */
void void
realitexpire(arg) realitexpire(arg)
@ -315,7 +319,7 @@ realitexpire(arg)
&p->p_realtimer.it_interval); &p->p_realtimer.it_interval);
if (timercmp(&p->p_realtimer.it_value, &time, >)) { if (timercmp(&p->p_realtimer.it_value, &time, >)) {
timeout(realitexpire, (caddr_t)p, timeout(realitexpire, (caddr_t)p,
hzto(&p->p_realtimer.it_value)); hzto(&p->p_realtimer.it_value) - 1);
splx(s); splx(s);
return; return;
} }