On Wed, Sep 15, 2004 at 03:27:12PM +0200, Jörn Engel wrote:
> On Sun, 5 September 2004 10:58:07 -0700, Linus Torvalds wrote:
> > On Sun, 5 Sep 2004, Arjan van de Ven wrote:
> > > 
> > > well... we have a reverse mapping now. What is stopping us from doing
> > > physical defragmentation ?
> > 
> > Nothing but replacement policy, really, and the fact that not everything
> > is rmappable.
> 
> What about pointers?  I have an ethernet driver that hands pointers to
> physical memory pages to hardware.  Would be fun if someone
> defragmented those pages. ;)

if you haven't pinned those pages then you have lost already.