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qemu: snapshot: Forbid empty snapshots

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If neither disks nor memory are selected for snapshot we'd record
metadata in case of external snapshot and do a disk snapshot in case of
external disk snapshot. Forbid this as it doesn't make much sense.
This commit is contained in:
Peter Krempa 2014-05-20 14:22:25 +02:00
parent 03b4da131a
commit 91b7e06865
1 changed files with 7 additions and 0 deletions
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7
src/qemu/qemu_driver.c
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@ -12703,6 +12703,13 @@ qemuDomainSnapshotPrepare(virConnectPtr conn,
}
}
if (!found_internal && !external &&
def->memory == VIR_DOMAIN_SNAPSHOT_LOCATION_NONE) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("nothing selected for snapshot"));
goto cleanup;
}
/* internal snapshot requires a disk image to store the memory image to, and
* also disks can't be excluded from an internal snapshot*/
if ((def->memory == VIR_DOMAIN_SNAPSHOT_LOCATION_INTERNAL && !found_internal) ||