Re: [PATCH][ATM] use rtnl_{lock,unlock} during device operations

David S. Miller (davem@redhat.com)
Sun, 08 Jun 2003 22:35:01 -0700 (PDT)


From: Roman Zippel <zippel@linux-m68k.org>
Date: Mon, 9 Jun 2003 00:32:49 +0200 (CEST)

On Sat, 7 Jun 2003, David S. Miller wrote:

> We don't use module refcounts at all anymore for netdev objects.
> That's the whole key.

If I read the source correctly, unregister_netdevice() simply does rip the
device out and sees what happens? It's a bit primitive, but should of
course work too.

The transition is half complete. Eventually even that
"wait for refcount to hit zero" part will go away, and
also we will add the logic to mark the device at "dead"
and then teach all the sysfs/procfs routines to error out
if they see the device they are examining is in this state.
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