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Message-ID: <4FC5BCDF.20807@us.ibm.com>
Date: Tue, 29 May 2012 23:23:27 -0700
From: John Stultz <johnstul@...ibm.com>
To: Richard Cochran <richardcochran@...il.com>
CC: linux-kernel@...r.kernel.org, Thomas Gleixner <tglx@...utronix.de>
Subject: Re: [PATCH RFC V2 3/6] time: keep track of the pending utc/tai threshold
On 05/29/2012 11:19 PM, Richard Cochran wrote:
> On Tue, May 29, 2012 at 10:56:18PM -0700, John Stultz wrote:
>> On 05/29/2012 10:11 PM, Richard Cochran wrote:
>>> On Tue, May 29, 2012 at 06:49:30PM -0700, John Stultz wrote:
>>>> diff --git a/kernel/time/timekeeping.c b/kernel/time/timekeeping.c
>>>> index 6e46cac..81c76a9 100644
>>>> --- a/kernel/time/timekeeping.c
>>>> +++ b/kernel/time/timekeeping.c
>>>> @@ -962,6 +962,7 @@ static cycle_t logarithmic_accumulation(cycle_t offset, int shift)
>>>> timekeeper.xtime.tv_sec++;
>>>> leap = second_overflow(timekeeper.xtime.tv_sec);
>>>> timekeeper.xtime.tv_sec += leap;
>>>> + timekeeper.wall_to_monotonic.tv_sec -= leap;
>>> Don't you need this in update_wall_time() too?
>> Yep. Good point.
> Okay, so I can confirm that this fixes the CLOCK_MONOTONIC timer issue
> during a leap second.
Thanks! Is it ok if I add your Tested-by: to the patch?
thanks
-john
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