[libvirt] [PATCH 2/5] qemu: snapshot: Skip empty drives with internal snapshots
The code that validates whether an internal snapshot is possible would
reject an empty but not-readonly drive. Since floppies can have this
property, add a check for emptiness.
---
src/qemu/qemu_driver.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
index 388af4f6f..e39de625d 100644
--- a/src/qemu/qemu_driver.c
+++ b/src/qemu/qemu_driver.c
@@ -13825,7 +13825,8 @@ qemuDomainSnapshotPrepare(virConnectPtr conn,
case VIR_DOMAIN_SNAPSHOT_LOCATION_NONE:
/* Remember seeing a disk that has snapshot disabled */
- if (!dom_disk->src->readonly)
+ if (!virStorageSourceIsEmpty(dom_disk->src) &&
+ !dom_disk->src->readonly)
forbid_internal = true;
break;
--
2.12.2