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| author |   cheloha <cheloha@openbsd.org> | 2020-07-02 23:30:38 +0000 |
|---|---|---|
| committer | cheloha <cheloha@openbsd.org> | 2020-07-02 23:30:38 +0000 |
| commit | e62bad27a59659808669209887f70d0031fae9d0 (patch) | |
| tree | 566f1f7fc6648d136577eaad5811c94f24fb2c03 /sys/kern/kern_tc.c | |
| parent | Add RAMDISK config for powerpc64. (diff) | |
| download | wireguard-openbsd-e62bad27a59659808669209887f70d0031fae9d0.tar.xz wireguard-openbsd-e62bad27a59659808669209887f70d0031fae9d0.zip | |
timecounting: make the dummy counter interrupt- and MP-safe
The dummy counter should be deterministic with respect to interrupts
and multiple threads of execution.
Diffstat (limited to 'sys/kern/kern_tc.c')
| -rw-r--r-- | sys/kern/kern_tc.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/sys/kern/kern_tc.c b/sys/kern/kern_tc.c index 96bc4b952c8..fa9591c2683 100644 --- a/sys/kern/kern_tc.c +++ b/sys/kern/kern_tc.c @@ -1,4 +1,4 @@ -/* $OpenBSD: kern_tc.c,v 1.59 2020/06/26 18:48:31 cheloha Exp $ */ +/* $OpenBSD: kern_tc.c,v 1.60 2020/07/02 23:30:38 cheloha Exp $ */ /* * Copyright (c) 2000 Poul-Henning Kamp <phk@FreeBSD.org> @@ -59,7 +59,7 @@ dummy_get_timecount(struct timecounter *tc) { static u_int now; - return (++now); + return atomic_inc_int_nv(&now); } static struct timecounter dummy_timecounter = { |