linux-kernel - Re: [GIT PULL] locking changes for v4.4

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Date:	Wed, 4 Nov 2015 12:37:01 +0100
From:	Peter Zijlstra <peterz@...radead.org>
To:	Linus Torvalds <torvalds@...ux-foundation.org>
Cc:	Ingo Molnar <mingo@...nel.org>, Dmitry Vyukov <dvyukov@...gle.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	"Paul E. McKenney" <paulmck@...ibm.com>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [GIT PULL] locking changes for v4.4

On Tue, Nov 03, 2015 at 05:30:29PM -0800, Linus Torvalds wrote:
> From 105ff3cbf225036b75a6a46c96d1ddce8e7bdc66 Mon Sep 17 00:00:00 2001
> From: Linus Torvalds <torvalds@...ux-foundation.org>
> Date: Tue, 3 Nov 2015 17:22:17 -0800
> Subject: [PATCH] atomic: remove all traces of READ_ONCE_CTRL() and atomic*_read_ctrl()

> So I do not see how these "x_ctrl()" functions can currently be necessary.

> Cc: Peter Zijlstra <a.p.zijlstra@...llo.nl>
> Cc: Paul E McKenney <paulmck@...ibm.com>
> Cc: Dmitry Vyukov <dvyukov@...gle.com>
> Cc: Will Deacon <will.deacon@....com>
> Cc: Ingo Molnar <mingo@...nel.org>
> Signed-off-by: Linus Torvalds <torvalds@...ux-foundation.org>

Hooray!

Now if only we could convince the C/C++ people that write speculation is
a bad idea :-)

Acked-by: Peter Zijlstra (Intel) <peterz@...radead.org>
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