tracing: Do not add event files for modules that fail tracepoints

[firefly-linux-kernel-4.4.55.git] / kernel / time / ntp.c

diff --git a/kernel/time/ntp.c b/kernel/time/ntp.c
index 8f5b3b98577b797663f8057762b6248d0fae1823..af8d1d4f3d55156eaae7936b1a34d8cd7141248f 100644 (file)
--- 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;
@@ -516,13 +517,13 @@ static void sync_cmos_clock(struct work_struct *work)
        schedule_delayed_work(&sync_cmos_work, timespec_to_jiffies(&next));
 }
 
-static void notify_cmos_timer(void)
+void ntp_notify_cmos_timer(void)
 {
        schedule_delayed_work(&sync_cmos_work, 0);
 }
 
 #else
-static inline void notify_cmos_timer(void) { }
+void ntp_notify_cmos_timer(void) { }
 #endif
 
 
@@ -687,8 +688,6 @@ int __do_adjtimex(struct timex *txc, struct timespec *ts, s32 *time_tai)
        if (!(time_status & STA_NANO))
                txc->time.tv_usec /= NSEC_PER_USEC;
 
-       notify_cmos_timer();
-
        return result;
 }