From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S264158AbTFIFYb (ORCPT ); Mon, 9 Jun 2003 01:24:31 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S264174AbTFIFYb (ORCPT ); Mon, 9 Jun 2003 01:24:31 -0400 Received: from pizda.ninka.net ([216.101.162.242]:14992 "EHLO pizda.ninka.net") by vger.kernel.org with ESMTP id S264158AbTFIFYa (ORCPT ); Mon, 9 Jun 2003 01:24:30 -0400 Date: Sun, 08 Jun 2003 22:35:01 -0700 (PDT) Message-Id: <20030608.223501.71104915.davem@redhat.com> To: zippel@linux-m68k.org Cc: wa@almesberger.net, chas@cmf.nrl.navy.mil, linux-kernel@vger.kernel.org Subject: Re: [PATCH][ATM] use rtnl_{lock,unlock} during device operations (take 2) From: "David S. Miller" In-Reply-To: References: <20030607.235706.41641672.davem@redhat.com> X-FalunGong: Information control. X-Mailer: Mew version 2.1 on Emacs 21.1 / Mule 5.0 (SAKAKI) Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org From: Roman Zippel 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.