diff options
| author |   guenther <guenther@openbsd.org> | 2012-05-10 05:01:23 +0000 |
|---|---|---|
| committer | guenther <guenther@openbsd.org> | 2012-05-10 05:01:23 +0000 |
| commit | 0303b08324c895da9001caa5e6b5e4140157dac4 (patch) | |
| tree | 93f5427d2c853742dc4c32242fda8848a1f59b65 /sys/kern/kern_fork.c | |
| parent | Do not include <machine/reg.h> and pollute userland namespace with struct reg (diff) | |
| download | wireguard-openbsd-0303b08324c895da9001caa5e6b5e4140157dac4.tar.xz wireguard-openbsd-0303b08324c895da9001caa5e6b5e4140157dac4.zip | |
Only set a process's start time when starting the main thread. There's
also no need to protect that and the setting of the AFORK accounting flag
with the scheduler lock.
ok mikeb@
Diffstat (limited to 'sys/kern/kern_fork.c')
| -rw-r--r-- | sys/kern/kern_fork.c | 15 |
1 files changed, 10 insertions, 5 deletions
diff --git a/sys/kern/kern_fork.c b/sys/kern/kern_fork.c index e2771d04022..695cac4b619 100644 --- a/sys/kern/kern_fork.c +++ b/sys/kern/kern_fork.c @@ -1,4 +1,4 @@ -/* $OpenBSD: kern_fork.c,v 1.139 2012/04/13 16:37:51 kettenis Exp $ */ +/* $OpenBSD: kern_fork.c,v 1.140 2012/05/10 05:01:23 guenther Exp $ */ /* $NetBSD: kern_fork.c,v 1.29 1996/02/09 18:59:34 christos Exp $ */ /* @@ -449,12 +449,17 @@ fork1(struct proc *curp, int exitsig, int flags, void *stack, pid_t *tidptr, } /* - * Make child runnable, set start time, and add to run queue. + * For new processes, set accounting bits */ - SCHED_LOCK(s); - getmicrotime(&pr->ps_start); - if ((flags & FORK_THREAD) == 0) + if ((flags & FORK_THREAD) == 0) { + getmicrotime(&pr->ps_start); pr->ps_acflag = AFORK; + } + + /* + * Make child runnable and add to run queue. + */ + SCHED_LOCK(s); p->p_stat = SRUN; p->p_cpu = sched_choosecpu_fork(curp, flags); setrunqueue(p); |