linux-kernel - Re: [for-next][PATCH 1/4] ring-buffer: Replace this_cpu_*() with __this_cpu

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Message-ID: <alpine.DEB.2.11.1503300931430.6646@gentwo.org>
Date:	Mon, 30 Mar 2015 09:32:19 -0500 (CDT)
From:	Christoph Lameter <cl@...ux.com>
To:	Steven Rostedt <rostedt@...dmis.org>
cc:	linux-kernel@...r.kernel.org, Ingo Molnar <mingo@...nel.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	stable@...r.kernel.org,
	Uwe Kleine-Koenig <u.kleine-koenig@...gutronix.de>
Subject: Re: [for-next][PATCH 1/4] ring-buffer: Replace this_cpu_*() with
 __this_cpu_*()

On Mon, 30 Mar 2015, Steven Rostedt wrote:

> Hmm,  I didn't realize there was an "and" version. I'm guessing this
> would bring down the instruction count even more?

Yes two segment prefixed instructions and a decrement.
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