Re: Cleanups for APIC

[Ingo Molnar]

On Thu, 27 May 2004, Maciej W. Rozycki wrote:

> > (wrt. io_apic_sync(): i added it in 2.1.104 together with some other
> > changes - i dont this it's necessary anymore - the local APICs had
> > writearound erratas, but i dont remember this ever being necessary for
> > IO-APICs. I'll address this in another patch.)
> 
> Hmm, isn't that needed to make sure the iomem writeback is completed
> before exiting the caller?

the only thing that could happen is a POST delay in the PCI chipset - but
is that really an issue? Plus we only do the io_apic_sync() for the
masking, not the unmasking - so if it's needed then we dont do it
consistently.

	Ingo
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