From patchwork Fri Jun 25 13:59:23 2010 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ryan Harper X-Patchwork-Id: 56986 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from lists.gnu.org (lists.gnu.org [199.232.76.165]) by ozlabs.org (Postfix) with ESMTP id 68435B6F0E for ; Sat, 26 Jun 2010 06:42:07 +1000 (EST) Received: from localhost ([127.0.0.1]:39750 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1OSFOz-0001nq-G2 for incoming@patchwork.ozlabs.org; Fri, 25 Jun 2010 16:21:29 -0400 Received: from [140.186.70.92] (port=54085 helo=eggs.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1OSCzG-0004OQ-K1 for qemu-devel@nongnu.org; Fri, 25 Jun 2010 13:46:53 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.69) (envelope-from ) id 1OS9Rg-0006qm-Ek for qemu-devel@nongnu.org; Fri, 25 Jun 2010 09:59:54 -0400 Received: from e31.co.us.ibm.com ([32.97.110.149]:50143) by eggs.gnu.org with esmtp (Exim 4.69) (envelope-from ) id 1OS9Rg-0006k0-88 for qemu-devel@nongnu.org; Fri, 25 Jun 2010 09:59:52 -0400 Received: from d03relay05.boulder.ibm.com (d03relay05.boulder.ibm.com [9.17.195.107]) by e31.co.us.ibm.com (8.14.4/8.13.1) with ESMTP id o5PDn1GD014579 for ; Fri, 25 Jun 2010 07:49:01 -0600 Received: from d03av03.boulder.ibm.com (d03av03.boulder.ibm.com [9.17.195.169]) by d03relay05.boulder.ibm.com (8.13.8/8.13.8/NCO v10.0) with ESMTP id o5PDxWTo027898 for ; Fri, 25 Jun 2010 07:59:33 -0600 Received: from d03av03.boulder.ibm.com (loopback [127.0.0.1]) by d03av03.boulder.ibm.com (8.14.4/8.13.1/NCO v10.0 AVout) with ESMTP id o5PDxW6n014408 for ; Fri, 25 Jun 2010 07:59:32 -0600 Received: from localhost.localdomain (sig-9-76-74-41.mts.ibm.com [9.76.74.41]) by d03av03.boulder.ibm.com (8.14.4/8.13.1/NCO v10.0 AVin) with ESMTP id o5PDxQvN014192; Fri, 25 Jun 2010 07:59:31 -0600 From: Ryan Harper To: linux-hotplug@vger.kernel.org Date: Fri, 25 Jun 2010 08:59:23 -0500 Message-Id: <1277474363-6534-3-git-send-email-ryanh@us.ibm.com> X-Mailer: git-send-email 1.6.3.3 In-Reply-To: <1277474363-6534-1-git-send-email-ryanh@us.ibm.com> References: <1277474363-6534-1-git-send-email-ryanh@us.ibm.com> X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.6, seldom 2.4 (older, 4) Cc: john cooper , Rusty Russell , qemu-devel@nongnu.org, Ryan Harper Subject: [Qemu-devel] [PATCH 2/2] Add virtio-blk by-id rules based on 'serial' attribute X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: qemu-devel.nongnu.org List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Using virtio-blk serial attributes add rules to extract drive serial numbers and generate by-id links for the block device and partitions. With these rules added, we now see the following symlinks in disk/by-id % ls -al /dev/disk/by-id | grep vdb lrwxrwxrwx. 1 root root 9 Jun 1 22:09 virtio-QM00001 -> ../../vda lrwxrwxrwx. 1 root root 10 Jun 1 22:09 virtio-QM00001-part1 -> ../../vda1 Signed-off-by: Ryan Harper --- rules/rules.d/60-persistent-storage.rules | 4 ++++ 1 files changed, 4 insertions(+), 0 deletions(-) diff --git a/rules/rules.d/60-persistent-storage.rules b/rules/rules.d/60-persistent-storage.rules index 1f46041..6449e07 100644 --- a/rules/rules.d/60-persistent-storage.rules +++ b/rules/rules.d/60-persistent-storage.rules @@ -18,6 +18,10 @@ TEST=="whole_disk", GOTO="persistent_storage_end" # for partitions import parent information ENV{DEVTYPE}=="partition", IMPORT{parent}="ID_*" +# virtio-blk +KERNEL=="vd*[!0-9]", ATTRS{serial}=="?*", ENV{ID_SERIAL}="$attr{serial}", SYMLINK+="disk/by-id/virtio-$env{ID_SERIAL}" +KERNEL=="vd*[0-9]", ATTRS{serial}=="?*", ENV{ID_SERIAL}="$attr{serial}", SYMLINK+="disk/by-id/virtio-$env{ID_SERIAL}-part%n" + # USB devices use their own serial number KERNEL=="sd*[!0-9]|sr*", ENV{ID_SERIAL}!="?*", SUBSYSTEMS=="usb", IMPORT{program}="usb_id --export %p" # ATA devices with their own "ata" kernel subsystem