[Qemu-devel] Re: [PATCH] net: delay peer host device delete

[Anthony Liguori]

On 09/21/2010 04:18 AM, Michael S. Tsirkin wrote:
> > No, netdev_del should remove the VLANClientState from the
> > non_vlan_clients list.
> >
> > It's no longer enumerable and it's no longer lookup-able.
> >
> > The only reason it stays around it so that the device doesn't have a
> > reference to a free pointer.  The only field that's ever looked at
> > is is_deleted which is used by every function to turn around and
> > implement a nop.
> >
> > The VLANClientState is a hollow shell of it's former glorious self.
> > The remainder of it's (hopefully short) life is merely so that we
> > can avoid touching every device to teach them about disconnecting
> > backends.
> >      
> We'll have to tell them link is down, won't we?
>    

Yes, that would be a nice touch.

Regards,

Anthony Liguori