Messages in this thread | | | Date | Thu, 13 Nov 2008 18:56:06 -0800 | From | Jeremy Fitzhardinge <> | Subject | Re: [PATCH 1/2] mm: implement remap_pfn_range with apply_to_page_range |
| |
Nick Piggin wrote: > > This isn't performance critical to anyone? >
The only difference should be between having the specialized code and an indirect function call, no?
> I see DRM, IB, GRU, other media and video drivers use it. > > It IS exactly what apply_to_page_range does, I grant you. But so does > our traditional set of nested loops. So is there any particular reason > to change it? You're not planning to change fork/exit next, are you? :) >
No ;) But I need to have a more Xen-specific version of remap_pfn_range, and I wanted to 1) have the two versions look as similar as possible, and 2) not have a pile of duplicate code.
J
| |