qemu: Transfer recomputed stats back to source

After the previous commit, migration statistics on the source and
destination hosts are not equal because the destination updated time
statistics. Let's send the result back so that the same data can be
queried on both sides of the migration.
Signed-off-by: NJiri Denemark <jdenemar@redhat.com>

src/qemu/qemu_migration.c

@@ -3019,9 +3019,27 @@ qemuMigrationConfirmPhase(virQEMUDriverPtr driver,
                              ? QEMU_MIGRATION_PHASE_CONFIRM3
                              : QEMU_MIGRATION_PHASE_CONFIRM3_CANCELLED);
 
-    if (!(mig = qemuMigrationEatCookie(driver, vm, cookiein, cookieinlen, 0)))
+    if (!(mig = qemuMigrationEatCookie(driver, vm, cookiein, cookieinlen,
+                                       QEMU_MIGRATION_COOKIE_STATS)))
         goto cleanup;
 
+    /* Update total times with the values sent by the destination daemon */
+    if (mig->jobInfo) {
+        qemuDomainObjPrivatePtr priv = vm->privateData;
+        if (priv->job.completed) {
+            qemuDomainJobInfoPtr jobInfo = priv->job.completed;
+            if (mig->jobInfo->status.downtime_set) {
+                jobInfo->status.downtime = mig->jobInfo->status.downtime;
+                jobInfo->status.downtime_set = true;
+            }
+            if (mig->jobInfo->timeElapsed)
+                jobInfo->timeElapsed = mig->jobInfo->timeElapsed;
+        } else {
+            priv->job.completed = mig->jobInfo;
+            mig->jobInfo = NULL;
+        }
+    }
+
     if (flags & VIR_MIGRATE_OFFLINE)
         goto done;
 
@@ -4860,7 +4878,8 @@ qemuMigrationFinish(virQEMUDriverPtr driver,
                                          VIR_DOMAIN_EVENT_STOPPED_FAILED);
     }
 
-    if (qemuMigrationBakeCookie(mig, driver, vm, cookieout, cookieoutlen, 0) < 0)
+    if (qemuMigrationBakeCookie(mig, driver, vm, cookieout, cookieoutlen,
+                                QEMU_MIGRATION_COOKIE_STATS) < 0)
         VIR_WARN("Unable to encode migration cookie");
 
  endjob: