Pass the exportname as configured when exporting the image via NBD and
fill it with the default if it's not configured.

Signed-off-by: Peter Krempa <pkre...@redhat.com>
---
 src/qemu/qemu_backup.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/qemu/qemu_backup.c b/src/qemu/qemu_backup.c
index 3bac6b353c..54e726ca4a 100644
--- a/src/qemu/qemu_backup.c
+++ b/src/qemu/qemu_backup.c
@@ -548,9 +548,12 @@ qemuBackupBeginPullExportDisks(virDomainObjPtr vm,
     for (i = 0; i < ndisks; i++) {
         struct qemuBackupDiskData *dd = disks + i;

+        if (!dd->backupdisk->exportname)
+            dd->backupdisk->exportname = g_strdup(dd->domdisk->dst);
+
         if (qemuMonitorNBDServerAdd(priv->mon,
                                     dd->store->nodeformat,
-                                    dd->domdisk->dst,
+                                    dd->backupdisk->exportname,
                                     false,
                                     dd->incrementalBitmap) < 0)
             return -1;
-- 
2.23.0

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