Benjamin Herrenschmidt wrote: >> Quite frankly, I don't think nopfn() is a good interface. It's only usable >> for one single thing, so trying to claim that it's a generic VM op is >> really not valid. If (and that's a big if) we need this interface, we >> should just do it inside mm/memory.c instead of playing games as if it was >> generic. > > Or just use sparsemem and create struct pages for your hw :) we do that > for SPUs on Cell, works like a charm. Well then the question is, would it simplify the code using no_pfn in this case? Hacking up fake struct page entries seems even more of a hack to me. Cheers, Jes - : send the line "unsubscribe linux-ia64" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
![]() |