diff options
Diffstat (limited to 'sys/kern/kern_fork.c')
| -rw-r--r-- | sys/kern/kern_fork.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/sys/kern/kern_fork.c b/sys/kern/kern_fork.c index fbe7dcf19d4..dd4de7f0c9b 100644 --- a/sys/kern/kern_fork.c +++ b/sys/kern/kern_fork.c @@ -1,4 +1,4 @@ -/* $OpenBSD: kern_fork.c,v 1.146 2013/04/06 03:44:34 tedu Exp $ */ +/* $OpenBSD: kern_fork.c,v 1.147 2013/06/01 16:04:46 tedu Exp $ */ /* $NetBSD: kern_fork.c,v 1.29 1996/02/09 18:59:34 christos Exp $ */ /* @@ -325,6 +325,14 @@ fork1(struct proc *curp, int exitsig, int flags, void *stack, pid_t *tidptr, p->p_p = pr = curpr; TAILQ_INSERT_TAIL(&pr->ps_threads, p, p_thr_link); pr->ps_refcnt++; + /* + * if somebody else wants to take us to single threaded mode, + * count ourselves in. + */ + if (pr->ps_single) { + curpr->ps_singlecount++; + atomic_setbits_int(&p->p_flag, P_SUSPSINGLE); + } } else { process_new(p, curpr); pr = p->p_p; |