Re: [question] NR_IRQS in genirq

[Thomas Gleixner]

On Wed, 24 Nov 2010, Haojian Zhuang wrote:

> Hi all,
> 
> I'm using the latest kernel 2.6.37-rc1. Now I met some issues on genirq.
> 
> 1. While SPARSE IRQ is enabled, nr_irqs may be larger than NR_IRQS.
> But the allocated_irqs bitmap (kernel/irq/irqdesc.c) is restricted in
> NR_IRQS. Is it an issue?

Why can nr_irqs become larger? Is that a theoretical problem or did
you run into this ?

Thanks,

	tglx


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