linux-kernel - Re: How is Code in do_sys_settimeofday() safe in case of SMP and Nest Kernel Path?

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Message-ID: <Pine.LNX.4.64.0609301013040.3519@schroedinger.engr.sgi.com>
Date:	Sat, 30 Sep 2006 10:13:39 -0700 (PDT)
From:	Christoph Lameter <clameter@....com>
To:	Andi Kleen <ak@...e.de>
cc:	Nick Piggin <nickpiggin@...oo.com.au>,
	Dong Feng <middle.fengdong@...il.com>,
	Arjan van de Ven <arjan@...radead.org>,
	Paul Mackerras <paulus@...ba.org>,
	David Howells <dhowells@...hat.com>,
	linux-kernel@...r.kernel.org
Subject: Re: How is Code in do_sys_settimeofday() safe in case of SMP and
 Nest Kernel Path?

On Sat, 30 Sep 2006, Andi Kleen wrote:

> > Did you get to the bottom of this yet? It looks like you're right,
> > and I suggest a seqlock might be a good option.
> 
> It basically doesn't matter because nobody changes the time zone after boot.

Then we need to change to comments to explain the situation.

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