On Tue, Dec 11, 2012 at 07:07:14PM -0800, David Rientjes wrote: > On Fri, 7 Dec 2012, Kirill A. Shutemov wrote: > > > From: "Kirill A. Shutemov" <kirill.shutemov@xxxxxxxxxxxxxxx> > > > > We have two different implementation of is_zero_pfn() and > > my_zero_pfn() helpers: for architectures with and without zero page > > coloring. > > > > Let's consolidate them in <asm-generic/pgtable.h>. > > > > What's the benefit from doing this other than generalizing some per-arch > code? It simply adds on more layer of redirection to try to find the > implementation that matters for the architecture you're hacking on. The idea of asm-generic is consolidation arch code which can be re-used for different arches. It also makes support of new arches easier. Do you think have copy of the same code here and there is any better? -- Kirill A. Shutemov
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