From: Keith Owens <kaos@ocs.com.au>
To: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: dwmw2@infradead.org (David Woodhouse),
vojtech@suse.cz (Vojtech Pavlik), alan@redhat.com (Alan Cox),
torvalds@transmeta.com (Linus Torvalds),
linux-kernel@vger.kernel.org
Subject: Re: [PATCH] Make agpsupport work with modversions
Date: Sat, 28 Oct 2000 21:08:30 +1100 [thread overview]
Message-ID: <7404.972727710@ocs3.ocs-net> (raw)
In-Reply-To: Your message of "Sat, 28 Oct 2000 11:02:04 BST." <E13pSoP-0005Et-00@the-village.bc.nu>
On Sat, 28 Oct 2000 11:02:04 +0100 (BST),
Alan Cox <alan@lxorguk.ukuu.org.uk> wrote:
>> of get_module_symbol this weekend. The inter-object registration code
>> will allow two objects to pass data to each other, it will not matter
>> whether the objects are both modules, one module and one built in (in
>> either order) or both built in. When modules are involved there will
>> be full module locking.
>
>Dont forget that one of the objects may not even be present, or may be
>loaded later.
How could I forget it? You have defined the heart of the problem,
either object might be built into the kernel, might be a module or
might not even be there, in any case the load order is undefined. That
is why existing code is kludging things by using get_module_symbol().
inter_module_register, unregister, get, put will solve the inter object
problem but using a clean interface that works with symbol versions.
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prev parent reply other threads:[~2000-10-28 10:08 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20001019102722.B9057@suse.cz>
2000-10-26 22:21 ` [PATCH] Make agpsupport work with modversions Alan Cox
2000-10-26 22:55 ` Vojtech Pavlik
2000-10-27 13:25 ` David Woodhouse
2000-10-28 2:18 ` Keith Owens
2000-10-28 6:58 ` Andrew Morton
2000-10-28 9:40 ` Alan Cox
2000-10-28 9:55 ` Keith Owens
2000-10-28 10:07 ` Alan Cox
2000-10-28 10:02 ` Alan Cox
2000-10-28 10:08 ` Keith Owens [this message]
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