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    SubjectRe: [PATCH] - GRU virtual -> physical translation
    On Mon, 14 Jul 2008 09:52:55 -0500 Jack Steiner <steiner@sgi.com> wrote:

    > On Fri, Jul 11, 2008 at 12:17:36PM -0700, Andrew Morton wrote:
    > > On Wed, 9 Jul 2008 14:14:39 -0500 Jack Steiner <steiner@sgi.com> wrote:
    > >
    > > > Open code the equivalent to follow_page(). This eliminates the
    > > > requirement for an EXPORT of follow_page().
    > >
    > > I'd prefer to export follow_page() - copying-n-pasting just to avoid
    > > exporting the darn thing is silly.
    >
    > If follow_page() can be EXPORTed, I think that may make the most sense for
    > now.

    What was Christoph's reason for objecting to the export?

    > >
    > > > In addition, the code
    > > > is optimized for the specific case that is needed by the GRU and only
    > > > supports architectures supported by the GRU (ia64 & x86_64).
    > >
    > > Unless you think that this alone justifies the patch?
    >
    > No, at least not now. We don't have enough data yet to know if the additional
    > performance is worth having an optimized lookup routine. Currently the
    > focus is in making the driver functionally correct. Performance optimization
    > will be done later when we have a better understanding of the user apps that
    > will use the GRU.
    >
    > _IF_ we agree to the export, what is the best way to send you the patches.
    > Incremental or an entirely new GRU V3 patch with all issues resolved?

    Incremental would be preferred, please.


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