From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mx1.redhat.com ([66.187.233.31]:50823 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1759149AbXKTREx (ORCPT ); Tue, 20 Nov 2007 12:04:53 -0500 From: David Howells In-Reply-To: <20071120165812.GH12494@parisc-linux.org> References: <20071120165812.GH12494@parisc-linux.org> <20071120160220.GA22196@wotan.suse.de> <4680.1195577182@redhat.com> Subject: Re: [rfc] io memory barriers, and getting rid of mmiowb Date: Tue, 20 Nov 2007 17:04:46 +0000 Message-ID: <4873.1195578286@redhat.com> Sender: linux-arch-owner@vger.kernel.org To: Matthew Wilcox Cc: dhowells@redhat.com, Nick Piggin , linux-arch@vger.kernel.org, Linus Torvalds , Benjamin Herrenschmidt List-ID: Matthew Wilcox wrote: > > Should there be a spin_lock_io() for example? > > Then we need ... Yeah. David