Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S265875AbUA1I6f (ORCPT ); Wed, 28 Jan 2004 03:58:35 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S265877AbUA1I6f (ORCPT ); Wed, 28 Jan 2004 03:58:35 -0500 Received: from caramon.arm.linux.org.uk ([212.18.232.186]:2317 "EHLO caramon.arm.linux.org.uk") by vger.kernel.org with ESMTP id S265875AbUA1I6d (ORCPT ); Wed, 28 Jan 2004 03:58:33 -0500 Date: Wed, 28 Jan 2004 08:58:25 +0000 From: Russell King To: Linus Torvalds Cc: Hironobu Ishii , linux-kernel , linux-ia64 Subject: Re: [RFC/PATCH, 2/4] readX_check() performance evaluation Message-ID: <20040128085825.A3591@flint.arm.linux.org.uk> Mail-Followup-To: Linus Torvalds , Hironobu Ishii , linux-kernel , linux-ia64 References: <00a301c3e541$c13a6350$2987110a@lsd.css.fujitsu.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5.1i In-Reply-To: ; from torvalds@osdl.org on Tue, Jan 27, 2004 at 06:55:17PM -0800 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 882 Lines: 22 On Tue, Jan 27, 2004 at 06:55:17PM -0800, Linus Torvalds wrote: > Does anybody see any downsides to something like this? What if the failing PCI access happened in an interrupt routine? (I'm thinking of the situation where you may need to read the PCI status registers to find out whether an error occurred.) Also, for that matter, what if a network device receives an abort while performing BM-DMA? Do we even care about either of these two scenarios? -- Russell King Linux kernel 2.6 ARM Linux - http://www.arm.linux.org.uk/ maintainer of: 2.6 PCMCIA - http://pcmcia.arm.linux.org.uk/ 2.6 Serial core - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/