[PATCH] migration: fix xml file residual during vm crash with migration

[Chuan Zheng]

From: Zheng Chuan <zhengchuan at huawei.com>

when migration is cancelled (such as kill -9 vmpid in Src, etc), it could
do virDomainSaveStatus() to save xml file after qemuProcessStop(), which results
in xml residulal.

Fix it by that do not do virDomainSaveStatus() if vm is not active.

Signed-off-by: Zheng Chuan <zhengchuan at huawei.com>
---
 src/qemu/qemu_migration.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/qemu/qemu_migration.c b/src/qemu/qemu_migration.c
index 2c7bf34..d2804ab 100644
--- a/src/qemu/qemu_migration.c
+++ b/src/qemu/qemu_migration.c
@@ -3073,6 +3073,9 @@ qemuMigrationSrcConfirmPhase(virQEMUDriverPtr driver,
         qemuMigrationParamsReset(driver, vm, QEMU_ASYNC_JOB_MIGRATION_OUT,
                                  jobPriv->migParams, priv->job.apiFlags);
 
+        if (!virDomainObjIsActive(vm))
+            goto done;
+
         if (virDomainObjSave(vm, driver->xmlopt, cfg->stateDir) < 0)
             VIR_WARN("Failed to save status on vm %s", vm->def->name);
     }
-- 
1.8.3.1