diff options
| author | jhb <jhb@FreeBSD.org> | 2000-12-01 16:59:02 +0000 |
|---|---|---|
| committer | jhb <jhb@FreeBSD.org> | 2000-12-01 16:59:02 +0000 |
| commit | a9bb340be284f99abd9ac317596117962b9a96eb (patch) | |
| tree | ddb6db7d5f0ab0a7f4330ff7eaf04789c08466d5 /sys/kern/kern_exit.c | |
| parent | 7679eff29594d117cda151a56e29490265ab98cb (diff) | |
| download | FreeBSD-src-a9bb340be284f99abd9ac317596117962b9a96eb.zip FreeBSD-src-a9bb340be284f99abd9ac317596117962b9a96eb.tar.gz | |
Protect p_stat with sched_lock.
Diffstat (limited to 'sys/kern/kern_exit.c')
| -rw-r--r-- | sys/kern/kern_exit.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/sys/kern/kern_exit.c b/sys/kern/kern_exit.c index 1c03e7b..69f526c 100644 --- a/sys/kern/kern_exit.c +++ b/sys/kern/kern_exit.c @@ -439,7 +439,10 @@ loop: continue; nfound++; + mtx_enter(&sched_lock, MTX_SPIN); if (p->p_stat == SZOMB) { + mtx_exit(&sched_lock, MTX_SPIN); + /* charge childs scheduling cpu usage to parent */ if (curproc->p_pid != 1) { curproc->p_estcpu = @@ -542,6 +545,7 @@ loop: } if (p->p_stat == SSTOP && (p->p_flag & P_WAITED) == 0 && (p->p_flag & P_TRACED || uap->options & WUNTRACED)) { + mtx_exit(&sched_lock, MTX_SPIN); p->p_flag |= P_WAITED; q->p_retval[0] = p->p_pid; #ifdef COMPAT_43 @@ -558,6 +562,7 @@ loop: error = 0; return (error); } + mtx_exit(&sched_lock, MTX_SPIN); } if (nfound == 0) return (ECHILD); |
