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-rw-r--r--sys/kern/kern_event.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/sys/kern/kern_event.c b/sys/kern/kern_event.c
index 8a4ede8ae90..755c53ec86c 100644
--- a/sys/kern/kern_event.c
+++ b/sys/kern/kern_event.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: kern_event.c,v 1.100 2018/11/17 18:55:50 millert Exp $ */
+/* $OpenBSD: kern_event.c,v 1.101 2018/11/27 15:52:50 cheloha Exp $ */
/*-
* Copyright (c) 1999,2000,2001 Jonathan Lemon <jlemon@FreeBSD.org>
@@ -328,12 +328,16 @@ static void
filt_timer_timeout_add(struct knote *kn)
{
struct timeval tv;
+ struct timeout *to = kn->kn_hook;
int tticks;
tv.tv_sec = kn->kn_sdata / 1000;
tv.tv_usec = (kn->kn_sdata % 1000) * 1000;
tticks = tvtohz(&tv);
- timeout_add(kn->kn_hook, tticks ? tticks : 1);
+ /* Remove extra tick from tvtohz() if timeout has fired before. */
+ if (timeout_triggered(to))
+ tticks--;
+ timeout_add(to, (tticks > 0) ? tticks : 1);
}
void