linux-kernel - Re: [PATCH 3/3] Makes lguest's irq handler typesafe

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Message-ID: <479177BC.8030200@gmail.com>
Date:	Sat, 19 Jan 2008 13:08:28 +0900
From:	Tejun Heo <htejun@...il.com>
To:	Rusty Russell <rusty@...tcorp.com.au>
CC:	linux-kernel@...r.kernel.org,
	Andrew Morton <akpm@...ux-foundation.org>,
	Jeff Garzik <jgarzik@...ox.com>,
	Ash Willis <ashwillis@...grammer.net>,
	linux-pcmcia@...ts.infradead.org,
	virtualization@...ts.linux-foundation.org
Subject: Re: [PATCH 3/3] Makes lguest's irq handler typesafe

Hello,

Rusty Russell wrote:
>     There are three possibilities: (1) force everyone to use void *, (2) force 
> everyone to be type-correct, (3) allow both with some tricks.  Currently 
> we're on (1).  For kthread, with only dozens of users, I chose (2) (very 
> simple, easy to understand).  I think for widespread things like timer and 
> interrupt handlers, I think (3) is the right way to go.

Yeah, during transition, we definitely want (3).

>     I wanted to get this patch out there and see what the reaction was.  I can 
> do timers next, if that's going to add fuel to the discussion.

I think you successfully got a very small sample of possible reactions.
 Jeff vetoing it (and for good reasons) and me a bit more positive but
not quite sold.  Yeah, I think we need a good flame war to determine our
heading and converting timer shouldn't take too much of your time, right?

Thanks.

-- 
tejun
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