From: Rusty Russell <rusty@rustcorp.com.au>
To: "Petr Vandrovec" <VANDROVE@vc.cvut.cz>
Cc: linux-kernel@vger.kernel.org, adam@yggdrasil.com
Subject: Re: [PATCH] Proposed module init race fix.
Date: Thu, 16 Jan 2003 12:48:57 +1100 [thread overview]
Message-ID: <20030116015535.355A22C133@lists.samba.org> (raw)
In-Reply-To: Your message of "Wed, 15 Jan 2003 15:21:22 BST." <D4E37953801@vcnet.vc.cvut.cz>
In message <D4E37953801@vcnet.vc.cvut.cz> you write:
> On 15 Jan 03 at 20:06, Rusty Russell wrote:
> > In message <200301150846.AAA01104@adam.yggdrasil.com> you write:
> > > Could you explain this "random behavior" of 2.4 a bit more?
> > > As far as I know, if a module's init function fails, it must
> > > unregister everything that it has registered up to that point.
> >
> > And if someone's using it, the module gets unloaded underneath them.
>
> No. Unregister will go to sleep until it is safe to unregister
> driver. See unregister_netdevice for perfect example, but I'm sure
> that there are other unregister functions which make sure that after
> unregister it is OK to destroy everything.
And see remove_proc_entry, or notifier_chain_unregister for
counterexamples. No doubt there are others.
Rusty.
--
Anyone who quotes me in their sig is an idiot. -- Rusty Russell.
next prev parent reply other threads:[~2003-01-16 1:46 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-01-15 14:21 [PATCH] Proposed module init race fix Petr Vandrovec
2003-01-16 1:48 ` Rusty Russell [this message]
2003-01-16 2:55 ` Werner Almesberger
-- strict thread matches above, loose matches on Subject: below --
2003-01-15 8:46 Adam J. Richter
2003-01-15 9:06 ` Rusty Russell
2003-01-15 8:24 Rusty Russell
2003-01-15 16:34 ` Roman Zippel
2003-01-17 1:38 ` Rusty Russell
2003-01-17 15:35 ` Roman Zippel
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