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Make the wakeup optionnal in proc_stop, so that it is possible to stop a 

process without waking up its parent.
This commit is contained in:
manu 2003-11-27 23:16:47 +00:00
parent 6242a54566
commit d662d7555d
2 changed files with 10 additions and 9 deletions
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15
sys/kern/kern_sig.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: kern_sig.c,v 1.179 2003/11/17 19:21:56 christos Exp $ */
/* $NetBSD: kern_sig.c,v 1.180 2003/11/27 23:16:47 manu Exp $ */
/*
* Copyright (c) 1982, 1986, 1989, 1991, 1993
@ -37,7 +37,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: kern_sig.c,v 1.179 2003/11/17 19:21:56 christos Exp $");
__KERNEL_RCSID(0, "$NetBSD: kern_sig.c,v 1.180 2003/11/27 23:16:47 manu Exp $");
#include "opt_ktrace.h"
#include "opt_compat_sunos.h"
@ -1198,7 +1198,7 @@ kpsignal2(struct proc *p, const ksiginfo_t *ksi, int dolock)
*/
child_psignal(p, 0);
}
proc_stop(p); /* XXXSMP: recurse? */
proc_stop(p, 1); /* XXXSMP: recurse? */
goto done;
}
@ -1453,7 +1453,7 @@ issignal(struct lwp *l)
child_psignal(p, dolock);
if (dolock)
SCHED_LOCK(s);
proc_stop(p);
proc_stop(p, 1);
sigtraceswitch:
mi_switch(l, NULL);
SCHED_ASSERT_UNLOCKED();
@ -1526,7 +1526,7 @@ issignal(struct lwp *l)
child_psignal(p, dolock);
if (dolock)
SCHED_LOCK(s);
proc_stop(p);
proc_stop(p, 1);
sigswitch:
mi_switch(l, NULL);
SCHED_ASSERT_UNLOCKED();
@ -1583,7 +1583,7 @@ issignal(struct lwp *l)
* on the run queue.
*/
void
proc_stop(struct proc *p)
proc_stop(struct proc *p, int wakeup)
{
struct lwp *l;
struct proc *parent;
@ -1674,7 +1674,8 @@ proc_stop(struct proc *p)
out:
/* XXX unlock process LWP state */
sched_wakeup((caddr_t)p->p_pptr);
if (wakeup)
sched_wakeup((caddr_t)p->p_pptr);
}
/*

4
sys/sys/proc.h
View File

@ -1,4 +1,4 @@
/* $NetBSD: proc.h,v 1.177 2003/11/17 19:21:24 christos Exp $ */
/* $NetBSD: proc.h,v 1.178 2003/11/27 23:16:47 manu Exp $ */
/*-
* Copyright (c) 1986, 1989, 1991, 1993
@ -478,7 +478,7 @@ void cpu_wait __P((struct lwp *));
void child_return(void *);
int proc_isunder(struct proc *, struct proc *);
void proc_stop(struct proc *);
void proc_stop(struct proc *, int);
void proclist_lock_read(void);
void proclist_unlock_read(void);