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add comment about prospective perils to previous

This commit is contained in:
pooka 2009-12-20 13:56:36 +00:00
parent 3b2dd63c4d
commit 3a5d99a092
1 changed files with 8 additions and 2 deletions
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10
sys/rump/librump/rumpkern/ltsleep.c
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@ -1,4 +1,4 @@
/* $NetBSD: ltsleep.c,v 1.24 2009/12/20 13:49:36 pooka Exp $ */
/* $NetBSD: ltsleep.c,v 1.25 2009/12/20 13:56:36 pooka Exp $ */
/*
* Copyright (c) 2007 Antti Kantee. All Rights Reserved.
@ -35,7 +35,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: ltsleep.c,v 1.24 2009/12/20 13:49:36 pooka Exp $");
__KERNEL_RCSID(0, "$NetBSD: ltsleep.c,v 1.25 2009/12/20 13:56:36 pooka Exp $");
#include <sys/param.h>
#include <sys/kernel.h>
@ -66,10 +66,16 @@ sleeper(struct ltsleeper *ltsp, int timo)
/* protected by biglock */
if (timo) {
/*
* Calculate wakeup-time.
* XXX: should assert nanotime() does not block,
* i.e. yield the cpu and/or biglock.
*/
ticks.tv_sec = timo / hz;
ticks.tv_nsec = (timo % hz) * (1000000000/hz);
nanotime(&ts);
timespecadd(&ts, &ticks, &ts);
if (rumpuser_cv_timedwait(ltsp->cv, rump_giantlock,
ts.tv_sec, ts.tv_nsec) == 0)
rv = 0;