Hey Thomas, here's a bugfix I just caught with my 3.10 queue. Mind
adding this to tip/timers/core?

thanks
-john


Now that we have CLOCK_TAI timers, make sure we notify hrtimer
code when TAI offset is changed.

Cc: Thomas Gleixner <t...@linutronix.de>
Signed-off-by: John Stultz <john.stu...@linaro.org>
---
 kernel/time/timekeeping.c |   10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/kernel/time/timekeeping.c b/kernel/time/timekeeping.c
index c4d2a87..675f720 100644
--- a/kernel/time/timekeeping.c
+++ b/kernel/time/timekeeping.c
@@ -607,6 +607,7 @@ void timekeeping_set_tai_offset(s32 tai_offset)
        __timekeeping_set_tai_offset(tk, tai_offset);
        write_seqcount_end(&timekeeper_seq);
        raw_spin_unlock_irqrestore(&timekeeper_lock, flags);
+       clock_was_set();
 }
 
 /**
@@ -1639,7 +1640,7 @@ int do_adjtimex(struct timex *txc)
        struct timekeeper *tk = &timekeeper;
        unsigned long flags;
        struct timespec ts;
-       s32 tai;
+       s32 orig_tai, tai;
        int ret;
 
        /* Validate the data before disabling interrupts */
@@ -1663,10 +1664,13 @@ int do_adjtimex(struct timex *txc)
        raw_spin_lock_irqsave(&timekeeper_lock, flags);
        write_seqcount_begin(&timekeeper_seq);
 
-       tai = tk->tai_offset;
+       orig_tai = tai = tk->tai_offset;
        ret = __do_adjtimex(txc, &ts, &tai);
 
-       __timekeeping_set_tai_offset(tk, tai);
+       if (tai != orig_tai) {
+               __timekeeping_set_tai_offset(tk, tai);
+               clock_was_set_delayed();
+       }
        write_seqcount_end(&timekeeper_seq);
        raw_spin_unlock_irqrestore(&timekeeper_lock, flags);
 
-- 
1.7.10.4

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majord...@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Reply via email to