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

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Message-ID: <20151104135531.GT29027@linux.vnet.ibm.com>
Date:	Wed, 4 Nov 2015 05:55:31 -0800
From:	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
To:	Peter Zijlstra <peterz@...radead.org>
Cc:	Linus Torvalds <torvalds@...ux-foundation.org>,
	Ingo Molnar <mingo@...nel.org>,
	Dmitry Vyukov <dvyukov@...gle.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [GIT PULL] locking changes for v4.4

On Wed, Nov 04, 2015 at 12:37:01PM +0100, Peter Zijlstra wrote:
> 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 :-)

Sigh...  Working on it...

							Thanx, Paul

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

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