time: Move common updates to a function
CC: Thomas Gleixner <tglx@linutronix.de> CC: Eric Dumazet <eric.dumazet@gmail.com> CC: Richard Cochran <richardcochran@gmail.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: John Stultz <john.stultz@linaro.org>
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058892e632
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1 changed files with 17 additions and 22 deletions
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@ -172,17 +172,26 @@ static inline s64 timekeeping_get_ns_raw(void)
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return clocksource_cyc2ns(cycle_delta, clock->mult, clock->shift);
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}
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/* must hold write on timekeeper.lock */
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static void timekeeping_update(bool clearntp)
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{
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if (clearntp) {
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timekeeper.ntp_error = 0;
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ntp_clear();
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}
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update_vsyscall(&timekeeper.xtime, &timekeeper.wall_to_monotonic,
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timekeeper.clock, timekeeper.mult);
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}
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void timekeeping_leap_insert(int leapsecond)
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{
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unsigned long flags;
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write_seqlock_irqsave(&timekeeper.lock, flags);
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timekeeper.xtime.tv_sec += leapsecond;
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timekeeper.wall_to_monotonic.tv_sec -= leapsecond;
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update_vsyscall(&timekeeper.xtime, &timekeeper.wall_to_monotonic,
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timekeeper.clock, timekeeper.mult);
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timekeeping_update(false);
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write_sequnlock_irqrestore(&timekeeper.lock, flags);
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}
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@ -386,12 +395,7 @@ int do_settimeofday(const struct timespec *tv)
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timespec_sub(timekeeper.wall_to_monotonic, ts_delta);
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timekeeper.xtime = *tv;
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timekeeper.ntp_error = 0;
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ntp_clear();
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update_vsyscall(&timekeeper.xtime, &timekeeper.wall_to_monotonic,
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timekeeper.clock, timekeeper.mult);
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timekeeping_update(true);
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write_sequnlock_irqrestore(&timekeeper.lock, flags);
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@ -425,11 +429,7 @@ int timekeeping_inject_offset(struct timespec *ts)
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timekeeper.wall_to_monotonic =
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timespec_sub(timekeeper.wall_to_monotonic, *ts);
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timekeeper.ntp_error = 0;
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ntp_clear();
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update_vsyscall(&timekeeper.xtime, &timekeeper.wall_to_monotonic,
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timekeeper.clock, timekeeper.mult);
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timekeeping_update(true);
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write_sequnlock_irqrestore(&timekeeper.lock, flags);
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@ -668,10 +668,7 @@ void timekeeping_inject_sleeptime(struct timespec *delta)
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__timekeeping_inject_sleeptime(delta);
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timekeeper.ntp_error = 0;
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ntp_clear();
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update_vsyscall(&timekeeper.xtime, &timekeeper.wall_to_monotonic,
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timekeeper.clock, timekeeper.mult);
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timekeeping_update(true);
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write_sequnlock_irqrestore(&timekeeper.lock, flags);
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@ -1083,9 +1080,7 @@ static void update_wall_time(void)
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second_overflow();
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}
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/* check to see if there is a new clocksource to use */
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update_vsyscall(&timekeeper.xtime, &timekeeper.wall_to_monotonic,
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timekeeper.clock, timekeeper.mult);
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timekeeping_update(false);
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out:
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write_sequnlock_irqrestore(&timekeeper.lock, flags);
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