Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Wed, 9 Oct 2002 11:15:28 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Wed, 9 Oct 2002 11:15:28 -0400 Received: from pc1-cwma1-5-cust42.swa.cable.ntl.com ([80.5.120.42]:9634 "EHLO irongate.swansea.linux.org.uk") by vger.kernel.org with ESMTP id ; Wed, 9 Oct 2002 11:15:26 -0400 Subject: Re: [PATCH] 2.5.41, cciss, add rescan disk ioctl (6 of 5 :-) From: Alan Cox To: steve.cameron@hp.com Cc: Linux Kernel Mailing List , axboe@suse.de In-Reply-To: <20021009084659.A8912@zuul.cca.cpqcorp.net> References: <20021009084659.A8912@zuul.cca.cpqcorp.net> Content-Type: text/plain Content-Transfer-Encoding: 7bit X-Mailer: Ximian Evolution 1.0.8 (1.0.8-10) Date: 09 Oct 2002 16:31:41 +0100 Message-Id: <1034177501.1970.50.camel@irongate.swansea.linux.org.uk> Mime-Version: 1.0 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 924 Lines: 17 On Wed, 2002-10-09 at 15:46, Stephen Cameron wrote: > This patch adds the CCISS_RESCANDISK ioctl which is meant to be used in a > configuration like Steeleye's Lifekeeper. Two hosts connect to the storage, > one reserves disks. The 2nd will not be able to read the partition > information because of the reservations. In the event the 1st system fails, > the 2nd can detect this, (via special hardware + software typically) and then > take over the storage and rescan he disks via this ioctl. > Applies to 2.5.41 (after applying my prior 4 patches to 2.5.4[01] ) Why not use the existing rescanning ioctls like BLKRRPART - what else is different to need a custom ioctl? - 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/