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From: Roman Zippel <zippel@linux-m68k.org>
Subject: Re: Better local_t implementation needed
Date: Fri, 20 Apr 2007 23:25:04 +0200
References: <200704201256.13008.ak@suse.de>
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To: Andi Kleen <ak@suse.de>
Cc: linux-arch@vger.kernel.org, Christoph Lameter <clameter@sgi.com>
List-ID: <linux-arch.vger.kernel.org>

Hi,

On Friday 20 April 2007 12:56, Andi Kleen wrote:

> There used to be a portable implementation of local.h
> that instead defines local_t as a two value array
> indexed by in_interrupt(). I'm considering to add that back.

That doesn't really work in general, interrupts can interrupt other 
interrupts.

bye, Roman