Re: TLB flush optimization on s/390.

[Andi Kleen <ak@suse.de>]

On Fri, Oct 10, 2003 at 01:50:18AM -0700, David S. Miller wrote:
> On Fri, 10 Oct 2003 10:20:14 +0200
> "Martin Schwidefsky" <schwidefsky@de.ibm.com> wrote:
> 
> > Would you care to explain why this is a problem? It's a static function
> > that gets folded into another static function. I added additional arguments
> > to copy_one_pte and to avoid to make move_one_page slower I though to
> > inline it would be a good idea.
> 
> On at least x86 and sparc it makes it so that GCC cannot allocate
> enough registers and it has to reload several values to the
> stack.
> 
> In general when the functions are huge it never makes sense to
> inline them even if only used in one place.

Also it makes oops much easier to read when the functions are smaller ;-)

-Andi
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