Re: [RFC] atomic pte updates and pae changes, take 2

From: David S. Miller (davem@redhat.com)
Date: Sat Oct 14 2000 - 04:26:48 EDT

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       Date: Fri, 13 Oct 2000 18:43:47 -0700 (PDT)
       From: Linus Torvalds <torvalds@transmeta.com>

       I dislike the "__HAVE_ARCH_xxx" approach, and considering that most
       architectures will probably want to do something specific anyway I
       wonder if we should get rid of that and just make architectures
       have their own code.

    Most software-based TLB refill systems could (and sparc64 will) make
    all ref/mod bit updates occur in the kernel software fault path so
    that none of this special synchronization is necessary.

    In such cases it might be nice to have a generic version that all such
    ports can share by just not defining __HAVE_ARCH_xxx.

    Sure it's a bit ugly, but it does allow code sharing, so it probably
    at least deserves a chance :-)

    Later,
    David S. Miller
    davem@redhat.com
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