This patch supplies the core changes to implement high
resolution timers.  Mostly it changes the timer list from
the multi stage hash (or cascade) list to a single stage
hash list.  This change makes it easy to configure the list
size for those who are concerned with performance.  It also
eliminates the "time out" for the cascade operation every
512 jiffies, thus eliminating possible long preemption
times.

It also adds a sub jiffie word to the timer structure to
allow timers to exist between jiffies.  However, to support
the sub jiffie timers, work needs to be done in the platform
code for each arch.  The platform work for the i386 arch
follows in part 2.  To prevent requests from
non-existant code for sub jiffies stuff, these parts of this
patch are disabled with the IF_HIGH_RES() macro which
depends on CONFIG_HIGH_RES_TIMERS which will be defined for
each platform as they supply the needed code.

With this patch applied, the system should boot and run much
as it does prior to the patch.
-- 
George Anzinger   george@mvista.com
High-res-timers: 
http://sourceforge.net/projects/high-res-timers/
Preemption patch:
http://www.kernel.org/pub/linux/kernel/people/rml