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[PATCH 14/17] qemuDomainPrepareHostdev: Allocate backend nodenames in the prepare function



Allocate the nodename in the setup function rather than in the command
line generator.

Signed-off-by: Peter Krempa <pkrempa redhat com>
---
 src/qemu/qemu_command.c | 7 ++++---
 src/qemu/qemu_domain.c  | 8 ++++++++
 2 files changed, 12 insertions(+), 3 deletions(-)

diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c
index d92b967419..c5c587b97d 100644
--- a/src/qemu/qemu_command.c
+++ b/src/qemu/qemu_command.c
@@ -5105,9 +5105,11 @@ qemuBuildHostdevSCSIAttachPrepare(virDomainHostdevDefPtr hostdev,

         switch ((virDomainHostdevSCSIProtocolType) scsisrc->protocol) {
         case VIR_DOMAIN_HOSTDEV_SCSI_PROTOCOL_TYPE_NONE:
-            if (!scsisrc->u.host.src &&
-                !(scsisrc->u.host.src = virStorageSourceNew()))
+            if (!scsisrc->u.host.src) {
+                virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
+                               _("SCSI host device data structure was not initialized"));
                 return NULL;
+            }

             if (!(devstr = qemuBuildSCSIHostHostdevDrvStr(hostdev)))
                 return NULL;
@@ -5130,7 +5132,6 @@ qemuBuildHostdevSCSIAttachPrepare(virDomainHostdevDefPtr hostdev,
             return NULL;
         }

-        src->nodestorage = g_strdup_printf("libvirt-%s-backend", hostdev->info->alias);
         ret->storageNodeName = src->nodestorage;
         *backendAlias = src->nodestorage;

diff --git a/src/qemu/qemu_domain.c b/src/qemu/qemu_domain.c
index a751d0c205..d570ba892b 100644
--- a/src/qemu/qemu_domain.c
+++ b/src/qemu/qemu_domain.c
@@ -10409,6 +10409,10 @@ qemuDomainPrepareHostdev(virDomainHostdevDefPtr hostdev,

         switch ((virDomainHostdevSCSIProtocolType) scsisrc->protocol) {
         case VIR_DOMAIN_HOSTDEV_SCSI_PROTOCOL_TYPE_NONE:
+            virObjectUnref(scsisrc->u.host.src);
+            if (!(scsisrc->u.host.src = virStorageSourceNew()))
+                return -1;
+            src = scsisrc->u.host.src;
             break;

         case VIR_DOMAIN_HOSTDEV_SCSI_PROTOCOL_TYPE_ISCSI:
@@ -10422,6 +10426,10 @@ qemuDomainPrepareHostdev(virDomainHostdevDefPtr hostdev,
         }

         if (src) {
+            if (virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_BLOCKDEV_HOSTDEV_SCSI)) {
+                src->nodestorage = g_strdup_printf("libvirt-%s-backend", hostdev->info->alias);
+            }
+
             if (src->auth) {
                 bool iscsiHasPS = virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_ISCSI_PASSWORD_SECRET);
                 virSecretUsageType usageType = VIR_SECRET_USAGE_TYPE_ISCSI;
-- 
2.26.2


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