From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262114AbVGKQkE (ORCPT ); Mon, 11 Jul 2005 12:40:04 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262117AbVGKQhg (ORCPT ); Mon, 11 Jul 2005 12:37:36 -0400 Received: from mtagate1.de.ibm.com ([195.212.29.150]:55782 "EHLO mtagate1.de.ibm.com") by vger.kernel.org with ESMTP id S262100AbVGKQg0 (ORCPT ); Mon, 11 Jul 2005 12:36:26 -0400 Date: Mon, 11 Jul 2005 18:36:25 +0200 From: Martin Schwidefsky To: akpm@osdl.org, horst.hummel@de.ibm.com, linux-kernel@vger.kernel.org Subject: [patch 7/12] s390: fba dasd i/o errors. Message-ID: <20050711163625.GG10822@localhost.localdomain> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.5.9i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org [patch 7/12] s390: fba dasd i/o errors. From: Horst Hummel The FBA discipline does not use retries for failed requests. A request fails after the first unsuccessful start attempt. There are some rare conditions (e.g. CIO path recovery) in which the start of an i/o on a fba device can fail. A tiny amount of retries is therefore reasonable. Signed-off-by: Martin Schwidefsky diffstat: drivers/s390/block/dasd_fba.c | 4 +++- 1 files changed, 3 insertions(+), 1 deletion(-) diff -urpN linux-2.6/drivers/s390/block/dasd_fba.c linux-2.6-patched/drivers/s390/block/dasd_fba.c --- linux-2.6/drivers/s390/block/dasd_fba.c 2005-06-17 21:48:29.000000000 +0200 +++ linux-2.6-patched/drivers/s390/block/dasd_fba.c 2005-07-11 17:37:46.000000000 +0200 @@ -4,7 +4,7 @@ * Bugreports.to..: * (C) IBM Corporation, IBM Deutschland Entwicklung GmbH, 1999,2000 * - * $Revision: 1.39 $ + * $Revision: 1.40 $ */ #include @@ -354,6 +354,8 @@ dasd_fba_build_cp(struct dasd_device * d } cqr->device = device; cqr->expires = 5 * 60 * HZ; /* 5 minutes */ + cqr->retries = 32; + cqr->buildclk = get_clock(); cqr->status = DASD_CQR_FILLED; return cqr; }