Merge branch 'fortglx/3.12/time' into fortglx/3.13/time

Merge in the timekeeping changes that missed 3.12

Signed-off-by: John Stultz <john.stultz@linaro.org>

2 files changed, 3 insertions, 1 deletions

diff --git a/kernel/time/clocksource.c b/kernel/time/clocksource.c
index 637a14af6c21..64cf63ca09cc 100644
--- a/kernel/time/clocksource.c
+++ b/kernel/time/clocksource.c
@@ -479,6 +479,7 @@ static inline void clocksource_dequeue_watchdog(struct clocksource *cs) { }
 static inline void clocksource_resume_watchdog(void) { }
 static inline int __clocksource_watchdog_kthread(void) { return 0; }
 static bool clocksource_is_watchdog(struct clocksource *cs) { return false; }
+void clocksource_mark_unstable(struct clocksource *cs) { }
 
 #endif /* CONFIG_CLOCKSOURCE_WATCHDOG */
 
diff --git a/kernel/time/ntp.c b/kernel/time/ntp.c
index 8f5b3b98577b..ab1fa7cb8912 100644
--- a/kernel/time/ntp.c
+++ b/kernel/time/ntp.c
@@ -475,6 +475,7 @@ static void sync_cmos_clock(struct work_struct *work)
          * called as close as possible to 500 ms before the new second starts.
          * This code is run on a timer.  If the clock is set, that timer
          * may not expire at the correct time.  Thus, we adjust...
+         * We want the clock to be within a couple of ticks from the target.
          */
         if (!ntp_synced()) {
                 /*
@@ -485,7 +486,7 @@ static void sync_cmos_clock(struct work_struct *work)
         }
 
         getnstimeofday(&now);
-        if (abs(now.tv_nsec - (NSEC_PER_SEC / 2)) <= tick_nsec / 2) {
+        if (abs(now.tv_nsec - (NSEC_PER_SEC / 2)) <= tick_nsec * 5) {
                 struct timespec adjust = now;
 
                 fail = -ENODEV;