From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from smtp106.mail.mud.yahoo.com ([209.191.85.216]:24937 "HELO smtp106.mail.mud.yahoo.com") by vger.kernel.org with SMTP id S1750847AbWIMRyo (ORCPT ); Wed, 13 Sep 2006 13:54:44 -0400 Message-ID: <450845CC.6000402@yahoo.com.au> Date: Thu, 14 Sep 2006 03:54:20 +1000 From: Nick Piggin MIME-Version: 1.0 Subject: Re: Why Semaphore Hardware-Dependent? References: <1156750249.3034.155.camel@laptopd505.fenrus.org> <44F395DE.10804@yahoo.com.au> <200608290807.40963.ak@suse.de> In-Reply-To: <200608290807.40963.ak@suse.de> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-arch-owner@vger.kernel.org To: Andi Kleen Cc: Arjan van de Ven , Dong Feng , Paul Mackerras , Christoph Lameter , linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org, David Howells List-ID: [sorry, I missed some emails when I was out of action a while back. Catching up...] Andi Kleen wrote: >>and chuck out the "crappy" rwsem fallback implementation > > > What is crappy with it? I just mean that it is supposedly the second class implementation. Just seems wrong when powerpc has implemented the "better" version in a completely generic way (patch to follow). -- SUSE Labs, Novell Inc. Send instant messages to your online friends http://au.messenger.yahoo.com