diff options
| author |   mpi <mpi@openbsd.org> | 2019-05-31 19:51:09 +0000 |
|---|---|---|
| committer | mpi <mpi@openbsd.org> | 2019-05-31 19:51:09 +0000 |
| commit | 4b91b74a18bc983f4cced5ae0e1d3b81f991786d (patch) | |
| tree | 29d70291869a15eda0161c68981def08ec425f62 /sys/kern/kern_exec.c | |
| parent | Re-enable frame pointer elimination for x86 and mips64 if optimizations are (diff) | |
| download | wireguard-openbsd-4b91b74a18bc983f4cced5ae0e1d3b81f991786d.tar.xz wireguard-openbsd-4b91b74a18bc983f4cced5ae0e1d3b81f991786d.zip | |
Use a per-process mutex to protect time accounting instead of SCHED_LOCK().
Note that hardclock(9) still increments p_{u,s,i}ticks without holding a
lock.
ok visa@, cheloha@
Diffstat (limited to 'sys/kern/kern_exec.c')
| -rw-r--r-- | sys/kern/kern_exec.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/sys/kern/kern_exec.c b/sys/kern/kern_exec.c index 88d3b1b47f7..b732e48a167 100644 --- a/sys/kern/kern_exec.c +++ b/sys/kern/kern_exec.c @@ -1,4 +1,4 @@ -/* $OpenBSD: kern_exec.c,v 1.203 2019/02/08 12:51:57 bluhm Exp $ */ +/* $OpenBSD: kern_exec.c,v 1.204 2019/05/31 19:51:09 mpi Exp $ */ /* $NetBSD: kern_exec.c,v 1.75 1996/02/09 18:59:28 christos Exp $ */ /*- @@ -661,8 +661,10 @@ sys_execve(struct proc *p, void *v, register_t *retval) } /* reset CPU time usage for the thread, but not the process */ + mtx_enter(&pr->ps_mtx); timespecclear(&p->p_tu.tu_runtime); p->p_tu.tu_uticks = p->p_tu.tu_sticks = p->p_tu.tu_iticks = 0; + mtx_leave(&pr->ps_mtx); km_free(argp, NCARGS, &kv_exec, &kp_pageable); |