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Date: Wed, 26 Sep 2007 15:33:30 -0700 From: Stephen Hemminger <shemminger@...ux-foundation.org> To: Jan Engelhardt <jengelh@...putergmbh.de> Cc: Oleg Verych <olecom@...wer.upol.cz>, Jan Beulich <jbeulich@...ell.com>, bridge@...ts.linux-foundation.org, linux-kernel@...r.kernel.org Subject: Re: why network devices don't do reference counting? (Re: [PATCH] Module use count must be updated as bridges are created/destroyed) On Thu, 27 Sep 2007 00:18:55 +0200 (CEST) Jan Engelhardt <jengelh@...putergmbh.de> wrote: > > On Sep 26 2007 14:06, Stephen Hemminger wrote: > >> > > >> > No, network devices don't do reference counting. > >> > >> Could you explain why, please? > >> > >> After `udevd` on boot loads lots of unused crap, i surrendered, and use > >> $(rmmod `lsmod | just first column`). Networing bravely wipes away. OK, > >> there are lots of configs: udev, hotplug, modprobe, that somebody might > >> like to fix. But it came to the end with me. I just don't care. So, > >> please answer :) > > > >For hotplug and other reasons, the network developers decided that being > >able to remove a network module at any time was a good thing. It works. > > Except that for ipv6.ko, it's all opposite. After modprobe, > it already got a refcount like 8 and you're wondering how > to get rid of that. ipv6 is not a network driver, it is a protocol. You might be able to remove it if you zap all the routes and applications, ... -- Stephen Hemminger <shemminger@...ux-foundation.org> - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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