Re: [Lse-tech] Re: [PATCH] Nonlinear kernel virtual to physical mapping

[Daniel P. <phi...@bo...>]

On April 12, 2002 02:58 am, Kanoj Sarcar wrote:
> --- Keith Owens <ka...@oc...> wrote:
> > include/asm-ppc64/page.h
> > /*
> >  * XXX A bug in the current ppc64 compiler prevents
> > an optimisation
> >  * where a divide is replaced by a multiply by
> > shifted inverse. For
> >  * the moment use page->virtaul
> >  */
> > #define WANT_PAGE_VIRTUAL 1
> 
> Well, that should definitely inspire people to keep
> the size of struct page constant, specifically to 
> a power of 2, so that these guys can use shifts and
> give up page->virtual.

Right, and did anyone consider the possibility of fixing the bug?

-- 
Daniel