On Monday 30 November 2009 03:45:58 you wrote:

quoted text
> +       /* Process any work delayed until the end of the batch */
> +       dev = list_entry(head->next, struct net_device, unreg_list);
> +       call_netdevice_notifiers(NETDEV_UNREGISTER_BATCH, dev);
>  
> -       list_for_each_entry_safe(dev, aux, head, unreg_list) {
> -               int new_net = 1;
> -               list_for_each_entry(fdev, &pernet_list, unreg_list) {
> -                       if (net_eq(dev_net(dev), dev_net(fdev))) {
> -                               new_net = 0;
> -                               dev_put(dev);
> -                               break;
> -                       }
> -               }
> -               if (new_net)
> -                       list_move(&dev->unreg_list, &pernet_list);
> -       }
> 

This implies that the devices we want to batch unregister needs to be part of 
the same namespace. It might be worth mentioning that in the 
unregister_netdevice_many() function comments.

And, fortunately, it seems that all of the current batch unregister users 
comply with this requirement.

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