From: Gianni Tedesco <gianni@scaramanga.co.uk>
To: Rusty Russell <rusty@rustcorp.com.au>
Cc: davem@redhat.com, arjanv@redhat.com, torvalds@transmeta.com,
greg@kroah.com, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] Remove module reference counting.
Date: 25 Jul 2003 23:43:16 +0100 [thread overview]
Message-ID: <1059172995.16255.6.camel@sherbert> (raw)
In-Reply-To: <20030725173900.D7DE12C2A9@lists.samba.org>
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On Thu, 2003-07-24 at 19:00, Rusty Russell wrote:
> If module removal is to be a rare and unusual event, it
> doesn't seem so sensible to go to great lengths in the code to handle
> just that case. In fact, it's easier to leave the module memory in
> place, and not have the concept of parts of the kernel text (and some
> types of kernel data) vanishing.
Wasn't the idea once banded about of a 2-stage unload that went
something like:
1. ->cleanup() - unregister IRQ handlers, timers, etc.
2. Quiesce the system
3. Safe to unload
surely if nothing is registered and all CPUs do a voluntary schedule()
then there can be no chance of calling back in to the module.
LOL. Or am I kidding myself here? :)
--
// Gianni Tedesco (gianni at scaramanga dot co dot uk)
lynx --source www.scaramanga.co.uk/gianni-at-ecsc.asc | gpg --import
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next prev parent reply other threads:[~2003-07-25 22:27 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-07-24 18:00 [PATCH] Remove module reference counting Rusty Russell
2003-07-25 17:47 ` David S. Miller
2003-07-27 18:50 ` Rusty Russell
2003-07-25 17:54 ` Greg KH
2003-07-25 19:11 ` Greg KH
2003-07-25 19:26 ` Stephen Hemminger
2003-07-25 19:32 ` Greg KH
2003-07-25 22:26 ` Rusty Russell
2003-07-26 19:31 ` Linus Torvalds
2003-07-26 19:37 ` Arjan van de Ven
2003-07-27 5:38 ` Aschwin Marsman
2003-07-27 11:10 ` Alan Cox
2003-07-27 11:09 ` Alan Cox
2003-07-27 19:34 ` Rusty Russell
2003-07-27 21:47 ` Arjan van de Ven
2003-07-28 0:01 ` Alan Cox
2003-07-28 0:12 ` Bill Nottingham
2003-07-28 11:38 ` Alan Cox
2003-07-29 20:33 ` Rusty Russell
2003-07-30 1:55 ` Greg KH
2003-07-30 14:40 ` Alan Cox
2003-07-28 11:40 ` Alan Cox
2003-07-28 18:11 ` Gianni Tedesco
2003-07-28 19:03 ` Mike Fedyk
2003-08-01 2:39 ` Linus Torvalds
2003-07-25 23:24 ` Alan Cox
2003-07-27 18:48 ` Rusty Russell
2003-07-25 22:43 ` Gianni Tedesco [this message]
2003-07-25 23:37 ` Bernd Eckenfels
2003-07-26 20:18 ` Rusty Russell
2003-07-28 11:51 ` Rahul Karnik
2003-07-28 23:13 ` Rusty Russell
2003-07-29 2:39 ` Rahul Karnik
-- strict thread matches above, loose matches on Subject: below --
2003-07-29 2:10 Perez-Gonzalez, Inaky
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