Messages in this thread |  | | Date | Mon, 9 Sep 2002 21:23:22 +0200 (CEST) | From | Ingo Molnar <> | 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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