Re: [RFC 00/15] x86_64: Optimize percpu accesses

From: Christoph Lameter
Date: Fri Jul 11 2008 - 11:38:07 EST


Mike Travis wrote:

> I was thinking that supporting virtual percpu addresses would take a fair
> amount of code that, if living in a MODULE, wouldn't impact small systems.
> But it seems to be not worth the effort... ;-)

For base page mappings that logic is already provided by the vmalloc subsystem. For 2M mappings the vmemmap logic can be used.
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