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    SubjectRe: Non-GPL export of invalidate_mmap_range
    On Thu, Feb 19, 2004 at 07:01:41PM +0000, Christoph Hellwig wrote:
    > On Thu, Feb 19, 2004 at 10:56:08AM -0800, Andrew Morton wrote:
    > > inter-node cache consistency. Other distributed filesystems will need this
    > > and probably AIX already provides it.
    >
    > You've probably not seen the AIX VM architecture. Good for you as it's
    > not good for your stomache. I did when I still was SCAldera and although
    > my NDAs don't allow me to go into details I can tell you that the AIX
    > VM architecture is deeply tied into the segment architecture of the Power
    > CPU and signicicantly different from any other UNIX variant.
    >
    > So porting code from AIX that touches anything VM related is a complete
    > rewrite.

    Or, alternatively, requires a surprisingly large glue-code layer.

    Thanx, Paul
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