[src/trunk]: src/sys/rump/librump/rumpkern Reparent children of a dying lwpro...

[pooka <pooka%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/3424d810b395
branches:  trunk
changeset: 328753:3424d810b395
user:      pooka <pooka%NetBSD.org@localhost>
date:      Wed Apr 16 22:34:02 2014 +0000

description:
Reparent children of a dying lwproc.  Fixes wpa_supplicant -B (and
most likely a bunch of other things).

diffstat:

 sys/rump/librump/rumpkern/lwproc.c |  13 +++++++++++--
 1 files changed, 11 insertions(+), 2 deletions(-)

diffs (41 lines):

diff -r cdb3274b3f52 -r 3424d810b395 sys/rump/librump/rumpkern/lwproc.c
--- a/sys/rump/librump/rumpkern/lwproc.c        Wed Apr 16 22:33:07 2014 +0000
+++ b/sys/rump/librump/rumpkern/lwproc.c        Wed Apr 16 22:34:02 2014 +0000
@@ -1,4 +1,4 @@
-/*      $NetBSD: lwproc.c,v 1.29 2014/04/09 23:53:36 pooka Exp $       */
+/*      $NetBSD: lwproc.c,v 1.30 2014/04/16 22:34:02 pooka Exp $       */
 
 /*
  * Copyright (c) 2010, 2011 Antti Kantee.  All Rights Reserved.
@@ -28,7 +28,7 @@
 #define RUMP__CURLWP_PRIVATE
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: lwproc.c,v 1.29 2014/04/09 23:53:36 pooka Exp $");
+__KERNEL_RCSID(0, "$NetBSD: lwproc.c,v 1.30 2014/04/16 22:34:02 pooka Exp $");
 
 #include <sys/param.h>
 #include <sys/atomic.h>
@@ -83,6 +83,7 @@
 lwproc_proc_free(struct proc *p)
 {
        kauth_cred_t cred;
+       struct proc *child;
 
        KASSERT(p->p_stat == SDYING || p->p_stat == SDEAD);
 
@@ -96,6 +97,14 @@
 
        mutex_enter(proc_lock);
 
+       /* childranee eunt initus */
+       while ((child = LIST_FIRST(&p->p_children)) != NULL) {
+               LIST_REMOVE(child, p_sibling);
+               child->p_pptr = initproc;
+               child->p_ppid = 1;
+               LIST_INSERT_HEAD(&initproc->p_children, child, p_sibling);
+       }
+
        KASSERT(p->p_nlwps == 0);
        KASSERT(LIST_EMPTY(&p->p_lwps));