From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S266566AbUGVPRJ (ORCPT ); Thu, 22 Jul 2004 11:17:09 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S266630AbUGVPRI (ORCPT ); Thu, 22 Jul 2004 11:17:08 -0400 Received: from e34.co.us.ibm.com ([32.97.110.132]:36815 "EHLO e34.co.us.ibm.com") by vger.kernel.org with ESMTP id S266566AbUGVPQZ (ORCPT ); Thu, 22 Jul 2004 11:16:25 -0400 Subject: Re: [Q] claimed block devices From: Dave Kleikamp To: christophe.varoqui@free.fr Cc: linux-kernel In-Reply-To: <1090489874.40ff8e1226ad0@imp6-q.free.fr> References: <1090489874.40ff8e1226ad0@imp6-q.free.fr> Content-Type: text/plain Message-Id: <1090499383.17489.39.camel@shaggy.austin.ibm.com> Mime-Version: 1.0 X-Mailer: Ximian Evolution 1.4.5 Date: Thu, 22 Jul 2004 07:29:43 -0500 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Thu, 2004-07-22 at 04:51, christophe.varoqui@free.fr wrote: > Hello, > > does somebody know how a userspace C-proggy can detect if a block device is > claimed ? Creating a device map over such devices will fail, so better not to > try. I believe trying to open the device with O_EXCL will fail if the device is claimed. Shaggy -- David Kleikamp IBM Linux Technology Center