Get rid of IRQF_DISABLED - (was [PATCH] genirq: warn about IRQF_SHARED|IRQF_DISABLED)

Thomas Gleixner
2009-11-30T21:23:46Z

On Mon, 30 Nov 2009, Uwe Kleine-K?nig wrote:
> I think there is
>
> 3) you can only benefit from decent priority hardware if irqs are
> processed while irqs are enabled.
>
> I think
>
> git grep handle_fasteoi_irq
>
> gives an overview here: some hits in arch/powerpc, arch/sparc and
> arch/x86/kernel/apic/io_apic.c. (There is handle_prio_irq in

No. That handler is not an indicator for prio hardware actively used
in the sense of allowing higher prio interrupts to interrupt a current
running lower priority one. It can be used when the irq controller
does not fire the interrupt again before the eoi acknowledge has been
done.

Thanks,

tglx