From nobody Fri Apr 26 15:34:52 2024 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.zoho.com; spf=pass (zoho.com: domain of redhat.com designates 209.132.183.28 as permitted sender) smtp.mailfrom=libvir-list-bounces@redhat.com; Return-Path: Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by mx.zohomail.com with SMTPS id 1490799469440464.9182872090963; Wed, 29 Mar 2017 07:57:49 -0700 (PDT) Received: from smtp.corp.redhat.com (int-mx06.intmail.prod.int.phx2.redhat.com [10.5.11.16]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 7EA877AEBB; Wed, 29 Mar 2017 14:57:47 +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 49BC27B14D; Wed, 29 Mar 2017 14:57:47 +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 E84FF18523D1; Wed, 29 Mar 2017 14:57:46 +0000 (UTC) Received: from smtp.corp.redhat.com (int-mx02.intmail.prod.int.phx2.redhat.com [10.5.11.12]) by lists01.pubmisc.prod.ext.phx2.redhat.com (8.13.8/8.13.8) with ESMTP id v2TEvEoL026693 for ; Wed, 29 Mar 2017 10:57:14 -0400 Received: by smtp.corp.redhat.com (Postfix) id E7CD8B23F0; Wed, 29 Mar 2017 14:57:14 +0000 (UTC) Received: from angien.brq.redhat.com (dhcp129-47.brq.redhat.com [10.34.129.47]) by smtp.corp.redhat.com (Postfix) with ESMTP id 46618183AD; Wed, 29 Mar 2017 14:57:12 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mx1.redhat.com 7EA877AEBB Authentication-Results: ext-mx01.extmail.prod.ext.phx2.redhat.com; dmarc=none (p=none dis=none) header.from=redhat.com Authentication-Results: ext-mx01.extmail.prod.ext.phx2.redhat.com; spf=pass smtp.mailfrom=libvir-list-bounces@redhat.com DKIM-Filter: OpenDKIM Filter v2.11.0 mx1.redhat.com 7EA877AEBB From: Peter Krempa To: libvir-list@redhat.com Date: Wed, 29 Mar 2017 16:58:09 +0200 Message-Id: <20ee78bf9bafe542097fe0e144921d001a6799a7.1490799453.git.pkrempa@redhat.com> X-Scanned-By: MIMEDefang 2.79 on 10.5.11.12 X-loop: libvir-list@redhat.com Cc: Peter Krempa Subject: [libvirt] [PATCH] qemu: domain: Properly lookup top of chain in qemuDomainGetStorageSourceByDevstr 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 2.79 on 10.5.11.16 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.25]); Wed, 29 Mar 2017 14:57:48 +0000 (UTC) X-ZohoMail: RSF_0 Z_629925259 SPT_0 Content-Type: text/plain; charset="utf-8" When idx is 0 virStorageFileChainLookup returns the base (bottom) of the backing chain rather than the top. This is expected by the callers of qemuDomainGetStorageSourceByDevstr. Add a special case for idx =3D=3D 0 --- With this you are not able to specify the top image of a disk when using virDomainSetBlockThreshold in qemu. src/qemu/qemu_domain.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/src/qemu/qemu_domain.c b/src/qemu/qemu_domain.c index 458bb5f9a..589eb1889 100644 --- a/src/qemu/qemu_domain.c +++ b/src/qemu/qemu_domain.c @@ -8605,7 +8605,10 @@ qemuDomainGetStorageSourceByDevstr(const char *devst= r, goto cleanup; } - src =3D virStorageFileChainLookup(disk->src, NULL, NULL, idx, NULL); + if (idx =3D=3D 0) + src =3D disk->src; + else + src =3D virStorageFileChainLookup(disk->src, NULL, NULL, idx, NULL= ); cleanup: VIR_FREE(target); --=20 2.12.1 -- libvir-list mailing list libvir-list@redhat.com https://www.redhat.com/mailman/listinfo/libvir-list