[PATCH 0/6] xics.c and time.c optimizations

[Milton Miller]

The following patches against for-2.2.25 do some optimizations related
to the usage smp_processor_id().  

The xics one has been tested on SMP on 2.6.23, and still applies cleanly.

In time.c I started with the per_cpu to __get_cpu_var transformations
which affect ppc64 (the calls were added in 2.6.24), and from there
went looking for redundant global accesses from objdump -d --reloc.
I primarly looked at the pseries_defconfig and checked the results on
chrp32_defconfig.

Optimization results were checked on debian using

gcc version 4.1.2 20061115 (prerelease) (Debian 4.1.1-21)

milton