linux-kernel - Re: [patch 54/55] timekeeping: Provide fast and NMI safe access to CLOCK_MONOTONIC[

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Message-ID: <20140714094750.GO9918@twins.programming.kicks-ass.net>
Date:	Mon, 14 Jul 2014 11:47:50 +0200
From:	Peter Zijlstra <peterz@...radead.org>
To:	Thomas Gleixner <tglx@...utronix.de>
Cc:	LKML <linux-kernel@...r.kernel.org>,
	John Stultz <john.stultz@...aro.org>,
	Steven Rostedt <rostedt@...dmis.org>,
	Mathieu Desnoyers <mathieu.desnoyers@...icios.com>
Subject: Re: [patch 54/55] timekeeping: Provide fast and NMI safe access to
 CLOCK_MONOTONIC[_RAW]

On Fri, Jul 11, 2014 at 01:45:19PM -0000, Thomas Gleixner wrote:
> +static struct tk_fast tk_fast_raw  ____cacheline_aligned;
> +static struct tk_fast tk_fast_mono ____cacheline_aligned;

Question to the 'trace maniacs'; why do you lot need access to mono_raw?

I would much prefer to limit choice here.

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