linux-kernel - Re: [PATCH 7/7] trace: Update documentation for mono, mono

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Message-ID: <20161129072651.GD29412@gmail.com>
Date:   Tue, 29 Nov 2016 08:26:51 +0100
From:   Ingo Molnar <mingo@...nel.org>
To:     John Stultz <john.stultz@...aro.org>
Cc:     lkml <linux-kernel@...r.kernel.org>,
        Joel Fernandes <joelaf@...gle.com>,
        Steven Rostedt <rostedt@...dmis.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>,
        Richard Cochran <richardcochran@...il.com>,
        Prarit Bhargava <prarit@...hat.com>
Subject: Re: [PATCH 7/7] trace: Update documentation for mono, mono_raw and
 boot clock


* John Stultz <john.stultz@...aro.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,

	Ingo