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| author | John Stultz <johnstul@us.ibm.com> | 2009-08-14 15:47:18 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2009-08-15 10:55:45 +0200 |
| commit | 31089c13bcb18d2cd2a3ddfbe3a28666346f237e (patch) | |
| tree | 9db4868a4c524efd6f927a555e43c009a70243a5 /kernel | |
| parent | 4cd1993f0046fbc765dbf20af90966f5661e3789 (diff) | |
| download | blackbird-op-linux-31089c13bcb18d2cd2a3ddfbe3a28666346f237e.tar.gz blackbird-op-linux-31089c13bcb18d2cd2a3ddfbe3a28666346f237e.zip | |
timekeeping: Introduce timekeeping_leap_insert
Move the adjustment of xtime, wall_to_monotonic and the update of the
vsyscall variables to the timekeeping code.
Signed-off-by: John Stultz <johnstul@us.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
LKML-Reference: <20090814134807.609730216@de.ibm.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/time/ntp.c | 7 | ||||
| -rw-r--r-- | kernel/time/timekeeping.c | 7 |
2 files changed, 9 insertions, 5 deletions
diff --git a/kernel/time/ntp.c b/kernel/time/ntp.c index 7fc64375ff43..4800f933910e 100644 --- a/kernel/time/ntp.c +++ b/kernel/time/ntp.c @@ -194,8 +194,7 @@ static enum hrtimer_restart ntp_leap_second(struct hrtimer *timer) case TIME_OK: break; case TIME_INS: - xtime.tv_sec--; - wall_to_monotonic.tv_sec++; + timekeeping_leap_insert(-1); time_state = TIME_OOP; printk(KERN_NOTICE "Clock: inserting leap second 23:59:60 UTC\n"); @@ -203,9 +202,8 @@ static enum hrtimer_restart ntp_leap_second(struct hrtimer *timer) res = HRTIMER_RESTART; break; case TIME_DEL: - xtime.tv_sec++; + timekeeping_leap_insert(1); time_tai--; - wall_to_monotonic.tv_sec--; time_state = TIME_WAIT; printk(KERN_NOTICE "Clock: deleting leap second 23:59:59 UTC\n"); @@ -219,7 +217,6 @@ static enum hrtimer_restart ntp_leap_second(struct hrtimer *timer) time_state = TIME_OK; break; } - update_vsyscall(&xtime, clock); write_sequnlock(&xtime_lock); diff --git a/kernel/time/timekeeping.c b/kernel/time/timekeeping.c index 02c0b2c9c674..b8b70fb545fc 100644 --- a/kernel/time/timekeeping.c +++ b/kernel/time/timekeeping.c @@ -58,6 +58,13 @@ void update_xtime_cache(u64 nsec) struct clocksource *clock; +/* must hold xtime_lock */ +void timekeeping_leap_insert(int leapsecond) +{ + xtime.tv_sec += leapsecond; + wall_to_monotonic.tv_sec -= leapsecond; + update_vsyscall(&xtime, clock); +} #ifdef CONFIG_GENERIC_TIME /** |
