diff options
| author |   kettenis <kettenis@openbsd.org> | 2015-09-20 22:05:14 +0000 |
|---|---|---|
| committer | kettenis <kettenis@openbsd.org> | 2015-09-20 22:05:14 +0000 |
| commit | 077ff91642f0418d85cd763919c5462c31c1eefb (patch) | |
| tree | e0d3676ac0c4a3b65ab541ca76c9c91b0b9456e0 /sys/kern/kern_sched.c | |
| parent | Misuse of libevent in TLS read and write might have caused strange (diff) | |
| download | wireguard-openbsd-077ff91642f0418d85cd763919c5462c31c1eefb.tar.xz wireguard-openbsd-077ff91642f0418d85cd763919c5462c31c1eefb.zip | |
Short circuit if we're running on the CPU that we want to sync with. Fixes
suspend on machines with em(4) now that it uses intr_barrier(9).
ok krw@
Diffstat (limited to 'sys/kern/kern_sched.c')
| -rw-r--r-- | sys/kern/kern_sched.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/sys/kern/kern_sched.c b/sys/kern/kern_sched.c index 089e9bf7e67..a1fa25a54eb 100644 --- a/sys/kern/kern_sched.c +++ b/sys/kern/kern_sched.c @@ -1,4 +1,4 @@ -/* $OpenBSD: kern_sched.c,v 1.37 2015/09/13 11:15:11 kettenis Exp $ */ +/* $OpenBSD: kern_sched.c,v 1.38 2015/09/20 22:05:14 kettenis Exp $ */ /* * Copyright (c) 2007, 2008 Artur Grabowski <art@openbsd.org> * @@ -661,9 +661,12 @@ sched_barrier(struct cpu_info *ci) } } KASSERT(ci != NULL); - spc = &ci->ci_schedstate; + + if (ci == curcpu()) + return; task_set(&task, sched_barrier_task, ci); + spc = &ci->ci_schedstate; spc->spc_barrier = 0; task_add(systq, &task); while (!spc->spc_barrier) { |