linux-kernel - Re: [PATCH v2 4/8] x86: Add a comment clarifying LDT context switching

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Message-ID: <alpine.DEB.2.11.1411012056240.5308@nanos>
Date:	Sat, 1 Nov 2014 20:56:41 +0100 (CET)
From:	Thomas Gleixner <tglx@...utronix.de>
To:	Andy Lutomirski <luto@...capital.net>
cc:	Peter Zijlstra <peterz@...radead.org>,
	Valdis Kletnieks <Valdis.Kletnieks@...edu>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Paul Mackerras <paulus@...ba.org>,
	Arnaldo Carvalho de Melo <acme@...nel.org>,
	Ingo Molnar <mingo@...hat.com>,
	Kees Cook <keescook@...omium.org>,
	Andrea Arcangeli <aarcange@...hat.com>,
	Vince Weaver <vince@...ter.net>,
	"hillf.zj" <hillf.zj@...baba-inc.com>, x86@...nel.org
Subject: Re: [PATCH v2 4/8] x86: Add a comment clarifying LDT context
 switching

On Fri, 24 Oct 2014, Andy Lutomirski wrote:
> The code is correct, but only for a rather subtle reason.  This
> confused me for quite a while when I read switch_mm, so clarify the
> code to avoid confusing other people, too.
> 
> TBH, I wouldn't be surprised if this code was only correct by
> accident.

:)
 
> Signed-off-by: Andy Lutomirski <luto@...capital.net>

Reviewed-by: Thomas Gleixner <tglx@...utronix.de>
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