From nobody Sun Feb 8 02:08:42 2026 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of redhat.com designates 209.132.183.28 as permitted sender) client-ip=209.132.183.28; envelope-from=libvir-list-bounces@redhat.com; helo=mx1.redhat.com; Authentication-Results: mx.zohomail.com; spf=pass (zoho.com: domain of redhat.com designates 209.132.183.28 as permitted sender) smtp.mailfrom=libvir-list-bounces@redhat.com; dmarc=pass(p=none dis=none) header.from=redhat.com Return-Path: Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by mx.zohomail.com with SMTPS id 1532534349228721.629592248013; Wed, 25 Jul 2018 08:59:09 -0700 (PDT) Received: from smtp.corp.redhat.com (int-mx10.intmail.prod.int.phx2.redhat.com [10.5.11.25]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 5D9FBC04BD47; Wed, 25 Jul 2018 15:59:07 +0000 (UTC) Received: from colo-mx.corp.redhat.com (colo-mx01.intmail.prod.int.phx2.redhat.com [10.5.11.20]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 1EFAF2010CDB; Wed, 25 Jul 2018 15:59:07 +0000 (UTC) Received: from lists01.pubmisc.prod.ext.phx2.redhat.com (lists01.pubmisc.prod.ext.phx2.redhat.com [10.5.19.33]) by colo-mx.corp.redhat.com (Postfix) with ESMTP id BD12E1800B72; Wed, 25 Jul 2018 15:59:06 +0000 (UTC) Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.rdu2.redhat.com [10.11.54.5]) by lists01.pubmisc.prod.ext.phx2.redhat.com (8.13.8/8.13.8) with ESMTP id w6PFwcNY025787 for ; Wed, 25 Jul 2018 11:58:38 -0400 Received: by smtp.corp.redhat.com (Postfix) id 00DA41018F; Wed, 25 Jul 2018 15:58:38 +0000 (UTC) Received: from angien.brq.redhat.com (unknown [10.43.2.136]) by smtp.corp.redhat.com (Postfix) with ESMTP id 775567C4B; Wed, 25 Jul 2018 15:58:37 +0000 (UTC) From: Peter Krempa To: libvir-list@redhat.com Date: Wed, 25 Jul 2018 17:57:54 +0200 Message-Id: <91c0c8b4e90633c0a33b6862fe1e089cfcf435af.1532533587.git.pkrempa@redhat.com> In-Reply-To: References: In-Reply-To: References: X-Scanned-By: MIMEDefang 2.79 on 10.11.54.5 X-loop: libvir-list@redhat.com Cc: Peter Krempa Subject: [libvirt] [PATCH RFC 23/39] qemu: domain: Prepare qemuDomainDiskGetBackendAlias for -blockdev X-BeenThere: libvir-list@redhat.com X-Mailman-Version: 2.1.12 Precedence: junk List-Id: Development discussions about the libvirt library & tools List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Sender: libvir-list-bounces@redhat.com Errors-To: libvir-list-bounces@redhat.com X-Scanned-By: MIMEDefang 2.84 on 10.5.11.25 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.31]); Wed, 25 Jul 2018 15:59:08 +0000 (UTC) X-ZohoMail: RSF_0 Z_629925259 SPT_0 Content-Type: text/plain; charset="utf-8" Pass in the node name as the backend alias when -blockdev is used. As copy-on-read is expressed by a separate -blockdev backing chain member we need to decide which node name to use here. For empty cdroms when using -blockdev there is no backend at all so NULL is returned. Signed-off-by: Peter Krempa --- src/qemu/qemu_domain.c | 21 +++++++++++++++++++-- 1 file changed, 19 insertions(+), 2 deletions(-) diff --git a/src/qemu/qemu_domain.c b/src/qemu/qemu_domain.c index 526634d819..ea3929ce7e 100644 --- a/src/qemu/qemu_domain.c +++ b/src/qemu/qemu_domain.c @@ -8676,12 +8676,29 @@ qemuDomainDetermineDiskChain(virQEMUDriverPtr drive= r, */ int qemuDomainDiskGetBackendAlias(virDomainDiskDefPtr disk, - virQEMUCapsPtr qemuCaps ATTRIBUTE_UNUSED, + virQEMUCapsPtr qemuCaps, char **backendAlias) { + qemuDomainDiskPrivatePtr priv =3D QEMU_DOMAIN_DISK_PRIVATE(disk); + const char *nodename =3D NULL; *backendAlias =3D NULL; - if (!(*backendAlias =3D qemuAliasDiskDriveFromDisk(disk))) + if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_BLOCKDEV)) { + if (!(*backendAlias =3D qemuAliasDiskDriveFromDisk(disk))) + return -1; + + return 0; + } + + if (virStorageSourceIsEmpty(disk->src)) + return 0; + + if (disk->copy_on_read =3D=3D VIR_TRISTATE_SWITCH_ON) + nodename =3D priv->nodeCopyOnRead; + else + nodename =3D disk->src->nodeformat; + + if (VIR_STRDUP(*backendAlias, nodename) < 0) return -1; return 0; --=20 2.16.2 -- libvir-list mailing list libvir-list@redhat.com https://www.redhat.com/mailman/listinfo/libvir-list