[parisc-linux] itlb miss handler optimizations!

[Carlos O'Donell]

> I apply your patch against 2.4.21-pa9 on the N-4000 and compile it successfully
> with hppa64-linux-gcc (3.2.3). (having no clue about lmbench) I take this
> exercise to roughly compare. 
> 
> Running the original 2.4.21-pa9 here are times:
> Tue Aug 12 09:59:55 CEST 2003
> [...] # Build kernel: 19'58"
> Tue Aug 12 10:19:53 CEST 2003
> [...] # Build modules: 7'46"
> Tue Aug 12 10:27:39 CEST 2003
> 
> Running this new kernel:
> 
> Tue Aug 12 12:28:37 CEST 2003
> [...] # Build kernel: 20'8"
> Tue Aug 12 12:48:45 CEST 2003
> [...] # Build modules: 7'47"
> Tue Aug 12 12:56:32 CEST 2003
> 
> The difference are so small that a more accurate tools would be requested.

Thanks Joel! Yeah, I figured that perhaps the change might get lost in
the noise... I'm still running lmbench multiple times to get good
numbers.

Thanks again!

c.