Re: [PATCH 2/3] x86: use vector_desc instead of vector_irq

[Eric W. Biederman]

Yinghai Lu <yinghai@xxxxxxxxxx> writes:

> Eric pointed out that radix tree version of irq_to_desc will magnify delay on the path
> of handle_irq.
> use vector_desc to reduce the calling of irq_to_desc.
>
> next step: need to change all ack, mask, umask, eoi for all irq_chip to take irq_desc
>
> -v2: irq should be unsigned in 32bit handle_irq according to Eric
>      also reset vector_desc for lguest in setup_irq
> -v3: keep irq in x+execute_on_irq_stack() ...
>
> Signed-off-by: Yinghai Lu <yinghai@xxxxxxxxxx>

I can't spot any more problems.


Acked-by: "Eric W. Biederman" <ebiederm@xxxxxxxxxxxx>

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