(dropping all but one of the bugs from the cc, since they are now merged) On Wed, 2010-12-22 at 15:11 -0800, Jeremy Fitzhardinge wrote: > On 12/22/2010 10:35 AM, Konrad Rzeszutek Wilk wrote: > >> d541daf6b956 pvops: make pte_flags() go via pvops > > I've only hit that on a machine with a P4 Prescott with AGP. On nothing > > else - so > > it might not be required... If you don't have it you just get a bunch of > > WARN. > > It is technically necessary, but in practice it will only matter if > things modify ptes with PAT bits set in them. I'm in two minds about > it; we really need to benchmark the effect to see how much it matters.
Thanks. I think I'll leave it out of the first version I commit to the Debian kernel, I can always re-add it later if it turns out to be necessary. Ian. -- Ian Campbell Marvelous! The super-user's going to boot me! What a finely tuned response to the situation!
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