Re: Inclusion of UML in 2.6.8

[Arnd Bergmann]

On Sonntag, 27. Juni 2004 15:57, Rik van Riel wrote:
> On Sat, 26 Jun 2004, Jeff Dike wrote:
> > On Sat, Jun 26, 2004 at 07:10:48PM +0100, Christoph Hellwig wrote:
> 
> > > Also your above arch_free_page needs some more discussion.
> > 
> > I think that can disappear.  In some cases, it might be handy for the
> > arch to see pages being freed, but right now, I believe that UML has no
> > need for it.
> 
> Should be useful for Linux/Xen, Linux/s390 and Linux/iSeries,
> too...

At least for Linux/s390, the underlying architecture interface (DIAG 0x10)
that would let us exploit this is too expensive, so we chose not to do it.
Future machine might give us more flexibility, but using those requires
more than just hooking into free_page.

	Arnd <><

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