Re: Non-GPL export of invalidate_mmap_range

[Paul E. McKenney]

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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