linux-kernel - Re: [PATCH v2 1/1] doc: Add remote CPU access details and others to this_cpu

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Message-ID: <alpine.DEB.2.11.1407180922110.28503@gentwo.org>
Date:	Fri, 18 Jul 2014 09:23:24 -0500 (CDT)
From:	Christoph Lameter <cl@...two.org>
To:	Pranith Kumar <bobby.prani@...il.com>
cc:	rdunlap@...radead.org, linux-doc@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 1/1] doc: Add remote CPU access details and others to
 this_cpu_ops.txt

On Thu, 17 Jul 2014, Pranith Kumar wrote:

> > then we have on x86 a increment operation with locked semantics racing
> > with an unlocked one on the same cacheline.
> OK, I will add this as a warning in the documentation. Thanks!

Note that I have not been able to get beyond a bad feeling. Looked up
various sources of information about how the lock prefix works. Still I am
not sure if this works or not.


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