Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757831AbXI2GX1 (ORCPT ); Sat, 29 Sep 2007 02:23:27 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753895AbXI2GXQ (ORCPT ); Sat, 29 Sep 2007 02:23:16 -0400 Received: from outpipe-village-512-1.bc.nu ([81.2.110.250]:56251 "EHLO the-village.bc.nu" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1752743AbXI2GXP (ORCPT ); Sat, 29 Sep 2007 02:23:15 -0400 Date: Sat, 29 Sep 2007 07:28:31 +0100 From: Alan Cox To: Jeff Garzik Cc: Mark Lord , Tejun Heo , Andrew Morton , michal.k.k.piotrowski@gmail.com, bryan@arbores.ca, linux-kernel@vger.kernel.org, linux-ide@vger.kernel.org Subject: Re: [PATCH] libata drain fifo on stuck DRQ HSM violation Message-ID: <20070929072831.2df5f5ed@the-village.bc.nu> In-Reply-To: <46FDA4F3.7050205@pobox.com> References: <46CFA08E.6090604@arbores.ca> <6bffcb0e0708261610g10d9c59ck5789fac6feca9f42@mail.gmail.com> <46DBCB6C.8080206@gmail.com> <20070905095327.6277d054.akpm@linux-foundation.org> <46DEE617.4050004@rtr.ca> <46E0A253.7060803@gmail.com> <46E154DE.2060602@rtr.ca> <46FB563A.80108@gmail.com> <20070927193701.6230d77f@the-village.bc.nu> <46FC3D7D.90009@gmail.com> <46FC3FDD.5060201@pobox.com> <46FC423C.2050206@gmail.com> <46FC7B72.2030103@rtr.ca> <20070928112735.264733ad@the-village.bc.nu> <46FDA4F3.7050205@pobox.com> X-Mailer: Claws Mail 2.10.0 (GTK+ 2.10.14; i386-redhat-linux-gnu) Organization: Red Hat UK Cyf., Amberley Place, 107-111 Peascod Street, Windsor, Berkshire, SL4 1TE, Y Deyrnas Gyfunol. Cofrestrwyd yng Nghymru a Lloegr o'r rhif cofrestru 3798903 Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 699 Lines: 25 > > Why 512 words ? > > Though I have queued Mark's patch to be applied, my gut feeling would > lean towards a single DRQ block, rather than 512. Why not just work from the old IDE code. > > > >> ata_altstatus(ap); > >> - ata_chk_status(ap); > >> + ata_drain_fifo(ap, qc); > > > > ap->ops->cleanup(); > > > > might be wiser > > If someone needs that, they can override the error handler with their > own. No need for a new op. PDC202xx needs - 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/