Move timekeeping code to timekeeping.c

So I've been putting off this change for awhile since there's been so
much churn in the timekeeping code, but now looking at both -mm and -rt it seems there is only a minimal amount of timekeeping changes pending, so I wanted to send this out there for comments before pushing it to -mm with a hopeful inclusion date of 2.6.22.

Simply, it moves the timekeeping code out of kernel/timer.c and into kernel/time/timekeeping.c. I made no cleanups or other changes in transit.

Any thoughts or objections?

thanks
-john

 include/linux/time.h      |    1 
 kernel/time/Makefile      |    2 
 kernel/time/timekeeping.c |  475 ++++++++++++++++++++++++++++++++++++++++++++++
 kernel/timer.c            |  459 --------------------------------------------
 4 files changed, 478 insertions(+), 459 deletions(-)

index 8ea8dea..50e31b1 100644
@@ -119,6 +119,7 @@ extern void getnstimeofday(struct timesp
 
 extern struct timespec timespec_trunc(struct timespec t, unsigned gran);
 extern int timekeeping_is_continuous(void);
+extern void update_wall_time(void);
 
 /**
  * timespec_to_ns - Convert timespec to nanoseconds

index 93bccba..99b6034 100644
@@ -1,4 +1,4 @@
-obj-y += ntp.o clocksource.o jiffies.o timer_list.o
+obj-y += timekeeping.o ntp.o clocksource.o jiffies.o timer_list.o
 
 obj-$(CONFIG_GENERIC_CLOCKEVENTS)		+= clockevents.o
 obj-$(CONFIG_GENERIC_CLOCKEVENTS)		+= tick-common.o