Subject: Re: Proposal: CL* macros removal.
To: Chris G. Demetriou <cgd@netbsd.org>
From: Anders Magnusson <ragge@ludd.luth.se>
List: tech-kern
Date: 11/22/1999 02:57:49
> Jason Thorpe <thorpej@nas.nasa.gov> writes:
> > On Sun, 21 Nov 1999 22:40:40 +0100 (MET)
> > Anders Magnusson <ragge@ludd.luth.se> wrote:
> >
> > > Now you came up with something else: PAGE_SIZE as a variable instead of
> > > a constant create lots of unneccessary code, especially in complex
> > > expressions that otherwise could be optimized away by the compiler.
> > > What is the reason to have it as a variable instead of a constant?
> > > Can there ever be a benefit from this?
> >
> > "Because that's the way Mach VM hid MI vs. MD page size"? :-)
>
> Uh, that's not a benefit. but there are benefits.
>
> e.g. LKMs for multiple m68k platforms. the MD page sizes may differ.
>
That's a _good_ benefit. But fortunately not contradictionary to what
Jason suggested.
-- Ragge