Re: [PATCH] x86: APIC: Remove apic_write_around(); use alternatives

From: Ingo Molnar
Date: Sat Jul 19 2008 - 17:44:14 EST

* Zachary Amsden <zach@xxxxxxxxxx> wrote:

> On Fri, 2008-07-18 at 15:49 -0700, Suresh Siddha wrote:
> > > Thank you for cleaning this up Yinghai, but this really begs the
> > > question - is having write_atomic REALLY worthwhile?
> >
> > And this thread is about, Maciej's cleanup patch which removed
> > write_atomic completely :)
> >
> > Thanks to Maciej who posted this fix. It was on my todo list for
> > sometime now!
> Awesome! I just felt the need to use 'flaming crap' in a sentence
> today, and broken APICs seemed like an easy target. Glad to know it's
> gone.

it's gone, but without breaking or limiting old hardware: it's done by
moving the code into a quirk. And that's the general direction which we
want to take in such cases - move ugly non-standard stuff into
low-maintenance-overhead quirks.

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