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Date: Mon, 9 Sep 2002 21:23:22 +0200 (CEST)
From: Ingo Molnar <mingo@elte.hu>
Reply-To: Ingo Molnar <mingo@elte.hu>
To: Zwane Mwaikambo <zwane@mwaikambo.name>
Cc: Linus Torvalds <torvalds@transmeta.com>, Robert Love <rml@tech9.net>,
       Linux Kernel <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH][RFC] per isr in_progress markers
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On Mon, 9 Sep 2002, Zwane Mwaikambo wrote:

> As an aside, i just had an idea for another way to improve interrupt
> handling latency. Instead of walking through all the isrs in the chain,
> we can have an isr flag wether it was the source of the irq, and if so
> we stop right there and not walk through the other isrs. Obviously
> taking into account that some devices are dumb and have no real way of
> determining.

this is something i have a 0.5 MB patch for that touches a few hundred
drivers. I can dust it off if there's demand - it will break almost
nothing because i've done the hard work of adding the default 'no work was
done' bit to every driver's IRQ handler.

	Ingo

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