timkeeping: Fix update_vsyscall to provide wall_to_monotonic offset

update_vsyscall() did not provide the wall_to_monotoinc offset,
so arch specific implementations tend to reference wall_to_monotonic
directly. This limits future cleanups in the timekeeping core, so
this patch fixes the update_vsyscall interface to provide
wall_to_monotonic, allowing wall_to_monotonic to be made static
as planned in Documentation/feature-removal-schedule.txt

Signed-off-by: John Stultz <johnstul@us.ibm.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Anton Blanchard <anton@samba.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Tony Luck <tony.luck@intel.com>
LKML-Reference: <1279068988-21864-7-git-send-email-johnstul@us.ibm.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

1 files changed, 4 insertions, 4 deletions

diff --git a/arch/powerpc/kernel/time.c b/arch/powerpc/kernel/time.c
index 0711d60f40b0..e215f76bba1c 100644
--- a/arch/powerpc/kernel/time.c
+++ b/arch/powerpc/kernel/time.c
@@ -849,8 +849,8 @@ static cycle_t timebase_read(struct clocksource *cs)
         return (cycle_t)get_tb();
 }
 
-void update_vsyscall(struct timespec *wall_time, struct clocksource *clock,
-                     u32 mult)
+void update_vsyscall(struct timespec *wall_time, struct timespec *wtm,
+                        struct clocksource *clock, u32 mult)
 {
         u64 new_tb_to_xs, new_stamp_xsec;
 
@@ -882,8 +882,8 @@ void update_vsyscall(struct timespec *wall_time, struct clocksource *clock,
         vdso_data->tb_orig_stamp = clock->cycle_last;
         vdso_data->stamp_xsec = new_stamp_xsec;
         vdso_data->tb_to_xs = new_tb_to_xs;
-        vdso_data->wtom_clock_sec = wall_to_monotonic.tv_sec;
-        vdso_data->wtom_clock_nsec = wall_to_monotonic.tv_nsec;
+        vdso_data->wtom_clock_sec = wtm->tv_sec;
+        vdso_data->wtom_clock_nsec = wtm->tv_nsec;
         vdso_data->stamp_xtime = *wall_time;
         smp_wmb();
         ++(vdso_data->tb_update_count);