PERFORCE change 124447 for review

[Marko Zec]

On Wednesday 01 August 2007 03:28, Julian Elischer wrote:
> there is a "really die" flag that should be used if a node may be
> associated with hardware, or for some other reason be persistent.

Thanks for the tip -> NGF_REALLY_DIE is now in 
//depot/projects/vimage/src/sys/netgraph/ng_base.c#14

Marko

>         /* Ask the type if it has anything to do in this case */
>         if (node->nd_type && node->nd_type->shutdown) {
>                 (*node->nd_type->shutdown)(node);
>                 if (NG_NODE_IS_VALID(node)) {
>                         /*
>                          * Well, blow me down if the node code hasn't
> declared * that it doesn't want to die.
>                          * Presumably it is a persistent node.
>                          * If we REALLY want it to go away,
>                          *  e.g. hardware going away,
>                          * Our caller should set NGF_REALLY_DIE in
> nd_flags. */
>                         node->nd_flags &= ~(NGF_INVALID|NGF_CLOSING);
>                         NG_NODE_UNREF(node); /* Assume they still
> have theirs */ return;
>                 }
>         } else {                                /* do the default
> thing */ NG_NODE_UNREF(node);
>         }
>
> > +#ifdef VIMAGE
> > +static int vnet_netgraph_idetach(const void *unused)
> > +{
> > +	INIT_VNET_NETGRAPH(curvnet);
> > +	node_p node, last_killed = NULL;
> > +
> > +	while ((node = LIST_FIRST(&V_ng_nodelist)) != NULL) {
> > +		if (node == last_killed)
> > +			panic("netgraph node %s won't die", node->nd_name);
> > +		ng_rmnode(node, NULL, NULL, 0);
> > +		last_killed = node;
> > +	}
> > +
> > +	return 0;
> > +}
> > +#endif
> > +
> >  static moduledata_t netgraph_mod = {
> >  	"netgraph",
> >  	ngb_mod_event,