On Tue, 8 Sep 2009, Nick Piggin wrote: > > Without looking closely, why is it a big problem to have a > !HAVE PTE SPECIAL case? Couldn't it just be a check for > pfn == zero_pfn that is conditionally compiled away for pte > special architectures anyway? At least traditionally, there wasn't a single zero_pfn, but multiple (for VIPT caches that have performance issues with aliases). But yeah, we could check just the pfn number, and allow any architecture to do it. Linus -- To unsubscribe from this list: send the line "unsubscribe linux-arch" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
