[libvirt] [PATCH 6/6] qemu: Transfer recomputed stats back to source

[Jiri Denemark]

After previous commit, migration statistics on source and destination
hosts are not equal because destination updated time statistics. Let's
send the result back so that the same data can be queried on both end of
a migration.

Signed-off-by: Jiri Denemark <jdene...@redhat.com>
---
 src/qemu/qemu_migration.c | 23 +++++++++++++++++++++--
 1 file changed, 21 insertions(+), 2 deletions(-)

diff --git a/src/qemu/qemu_migration.c b/src/qemu/qemu_migration.c
index 43b42ac..873a756 100644
--- a/src/qemu/qemu_migration.c
+++ b/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:
-- 
2.1.0

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