From nobody Wed Feb 11 11:36:18 2026 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of redhat.com designates 209.132.183.39 as permitted sender) client-ip=209.132.183.39; envelope-from=libvir-list-bounces@redhat.com; helo=mx6-phx2.redhat.com; Authentication-Results: mx.zoho.com; spf=pass (zoho.com: domain of redhat.com designates 209.132.183.39 as permitted sender) smtp.mailfrom=libvir-list-bounces@redhat.com; Return-Path: Received: from mx6-phx2.redhat.com (mx6-phx2.redhat.com [209.132.183.39]) by mx.zohomail.com with SMTPS id 1487878046986831.9050570855538; Thu, 23 Feb 2017 11:27:26 -0800 (PST) Received: from lists01.pubmisc.prod.ext.phx2.redhat.com (lists01.pubmisc.prod.ext.phx2.redhat.com [10.5.19.33]) by mx6-phx2.redhat.com (8.14.4/8.14.4) with ESMTP id v1NJNolK057240; Thu, 23 Feb 2017 14:23:50 -0500 Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) by lists01.pubmisc.prod.ext.phx2.redhat.com (8.13.8/8.13.8) with ESMTP id v1NJLLIs001367 for ; Thu, 23 Feb 2017 14:21:21 -0500 Received: from angien.brq.redhat.com (dhcp129-47.brq.redhat.com [10.34.129.47]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id v1NJL8ud028635; Thu, 23 Feb 2017 14:21:20 -0500 From: Peter Krempa To: libvir-list@redhat.com Date: Thu, 23 Feb 2017 20:22:03 +0100 Message-Id: <81636f6328feb10d2703dcf4e9c53f233cc50b59.1487877253.git.pkrempa@redhat.com> In-Reply-To: References: In-Reply-To: References: X-Scanned-By: MIMEDefang 2.68 on 10.5.11.27 X-loop: libvir-list@redhat.com Cc: Peter Krempa Subject: [libvirt] [RFC PATCH 10/12] qemu: domain: Add helper to look up disk soruce by the backing store string 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-ZohoMail: RSF_0 Z_629925259 SPT_0 Content-Type: text/plain; charset="utf-8" --- src/qemu/qemu_domain.c | 37 +++++++++++++++++++++++++++++++++++++ src/qemu/qemu_domain.h | 3 +++ 2 files changed, 40 insertions(+) diff --git a/src/qemu/qemu_domain.c b/src/qemu/qemu_domain.c index b8a65cfd5..1740a9d80 100644 --- a/src/qemu/qemu_domain.c +++ b/src/qemu/qemu_domain.c @@ -8341,3 +8341,40 @@ qemuDomainDiskBackingStoreGetName(virDomainDiskDefPt= r disk, return ret; } + + +virStorageSourcePtr +qemuDomainGetStorageSourceByDevstr(const char *devstr, + virDomainDefPtr def) +{ + virDomainDiskDefPtr disk =3D NULL; + virStorageSourcePtr src =3D NULL; + char *target =3D NULL; + unsigned int idx; + size_t i; + + if (virStorageFileParseBackingStoreStr(devstr, &target, &idx) < 0) { + virReportError(VIR_ERR_INVALID_ARG, + _("failed to parse block device '%s'"), devstr); + return NULL; + } + + for (i =3D 0; i < def->ndisks; i++) { + if (STREQ(target, def->disks[i]->dst)) { + disk =3D def->disks[i]; + break; + } + } + + if (!disk) { + virReportError(VIR_ERR_INVALID_ARG, + _("failed to find disk '%s"), target); + goto cleanup; + } + + src =3D virStorageFileChainLookup(disk->src, NULL, NULL, idx, NULL); + + cleanup: + VIR_FREE(target); + return src; +} diff --git a/src/qemu/qemu_domain.h b/src/qemu/qemu_domain.h index 6e847c7ae..705a3ad59 100644 --- a/src/qemu/qemu_domain.h +++ b/src/qemu/qemu_domain.h @@ -859,4 +859,7 @@ char *qemuDomainDiskBackingStoreGetName(virDomainDiskDe= fPtr disk, virStorageSourcePtr src, unsigned int idx); +virStorageSourcePtr qemuDomainGetStorageSourceByDevstr(const char *devstr, + virDomainDefPtr def= ); + #endif /* __QEMU_DOMAIN_H__ */ --=20 2.11.1 -- libvir-list mailing list libvir-list@redhat.com https://www.redhat.com/mailman/listinfo/libvir-list