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Re: [PATCH 7/7] trace: Update documentation for mono, mono_raw and boot clock

From Joel Fernandes <joelaf@google.com>
Newsgroups linux.kernel
Subject Re: [PATCH 7/7] trace: Update documentation for mono, mono_raw and boot clock
Date 2016-11-29 17:20 +0100
Message-ID <sITip-2kT-17@gated-at.bofh.it> (permalink)
References <sICKB-89o-17@gated-at.bofh.it> <sICKC-89o-63@gated-at.bofh.it> <sIL1w-5fn-19@gated-at.bofh.it>
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On Mon, Nov 28, 2016 at 11:26 PM, Ingo Molnar <mingo@kernel.org> wrote:
>
> * John Stultz <john.stultz@linaro.org> wrote:
>
>> +       boot: This is the boot clock (CLOCK_BOOTTIME) and is based on the
>> +             fast monotonic clock, but also accounts for time spent in
>> +             suspend. Since the clock access is designed for use in
>> +             tracing in the suspend path, some side effects are possible
>> +             if clock is accessed after the suspend time is accounted before
>> +             the fast mono clock is updated. In this case, the clock update
>> +             appears to happen slightly sooner than it normally would have.
>> +             Also on 32-bit systems, its possible that the 64-bit boot offset
>> +             sees a partial update. These effects are rare and post
>> +             processing should be able to handle them. See comments on
>> +             ktime_get_boot_fast_ns function for more information.
>
> s/its possible/it's possible
> s/comments on ktime_get_boost_fast_ns function/comments in the ktime_get_boost_fast_ns() function
>

Thanks, I'll fix these up and repost.

Regards,
Joel

> Thanks,
>
>         Ingo

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Thread

[GIT PULL][PATCH 0/7] Timekeeping changes for 4.10 (take 2) John Stultz <john.stultz@linaro.org> - 2016-11-28 23:40 +0100
  [PATCH 3/7] timekeeping: clocksource_cyc2ns: Document intended range limitation John Stultz <john.stultz@linaro.org> - 2016-11-28 23:40 +0100
    [tip:timers/core] timekeeping/clocksource_cyc2ns: Document intended  range limitation tip-bot for Chris Metcalf <tipbot@zytor.com> - 2016-11-29 18:20 +0100
  [PATCH 5/7] timekeeping: Add a fast and NMI safe boot clock John Stultz <john.stultz@linaro.org> - 2016-11-28 23:40 +0100
    [tip:timers/core] timekeeping: Add a fast and NMI safe boot clock tip-bot for Joel Fernandes <tipbot@zytor.com> - 2016-11-29 18:20 +0100
  [PATCH 7/7] trace: Update documentation for mono, mono_raw and boot clock John Stultz <john.stultz@linaro.org> - 2016-11-28 23:40 +0100
    Re: [PATCH 7/7] trace: Update documentation for mono, mono_raw and  boot clock Steven Rostedt <rostedt@goodmis.org> - 2016-11-29 00:10 +0100
    Re: [PATCH 7/7] trace: Update documentation for mono, mono_raw and  boot clock Ingo Molnar <mingo@kernel.org> - 2016-11-29 08:30 +0100
      Re: [PATCH 7/7] trace: Update documentation for mono, mono_raw and  boot clock Thomas Gleixner <tglx@linutronix.de> - 2016-11-29 17:20 +0100
      Re: [PATCH 7/7] trace: Update documentation for mono, mono_raw and  boot clock Joel Fernandes <joelaf@google.com> - 2016-11-29 17:20 +0100
    [tip:timers/core] trace: Update documentation for mono, mono_raw  and boot clock tip-bot for Joel Fernandes <tipbot@zytor.com> - 2016-11-29 18:20 +0100

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