[PATCH] generic: vsyscall-gtod support for GENERIC_TIME

Provides generic infrastructure for vsyscall-gtod.

[akpm@osdl.org: cleanup]
Signed-off-by: John Stultz <johnstul@us.ibm.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Andi Kleen <ak@muc.de>
Cc: Roman Zippel <zippel@linux-m68k.org>

Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

kernel/timer.c

@@ -1174,6 +1174,7 @@ static void update_wall_time(void)
 
 	/* check to see if there is a new clocksource to use */
 	change_clocksource();
+	update_vsyscall(&xtime, clock);
 }
 
 /*