x86: rename paravirtualized TSC functions

Rename the paravirtualized calculate_cpu_khz to calibrate_tsc.
In all cases, we actually calibrate_tsc and use that as the cpu_khz value.

Signed-off-by: Alok N Kataria <akataria@vmware.com>
Signed-off-by: Dan Hecht <dhecht@vmware.com>
Cc: Dan Hecht <dhecht@vmware.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
diff --git a/arch/x86/lguest/boot.c b/arch/x86/lguest/boot.c
index e72cf07..50dad44 100644
--- a/arch/x86/lguest/boot.c
+++ b/arch/x86/lguest/boot.c
@@ -607,7 +607,7 @@
  * what speed it runs at, or 0 if it's unusable as a reliable clock source.
  * This matches what we want here: if we return 0 from this function, the x86
  * TSC clock will give up and not register itself. */
-static unsigned long lguest_cpu_khz(void)
+static unsigned long lguest_tsc_khz(void)
 {
 	return lguest_data.tsc_khz;
 }
@@ -998,7 +998,7 @@
 	/* time operations */
 	pv_time_ops.get_wallclock = lguest_get_wallclock;
 	pv_time_ops.time_init = lguest_time_init;
-	pv_time_ops.get_cpu_khz = lguest_cpu_khz;
+	pv_time_ops.get_tsc_khz = lguest_tsc_khz;
 
 	/* Now is a good time to look at the implementations of these functions
 	 * before returning to the rest of lguest_init(). */