[libvirt PATCH v2 65/81] qemu: Start a migration phase in qemuMigrationAnyConnectionClosed

[Jiri Denemark]

Non-postcopy case talks to QEMU monitor and thus needs to create a
nested job. Since qemuMigrationAnyConnectionClosed is called in case
there's no thread processing a migration API, we need to make the
current thread a temporary owner of the migration job to avoid "This
thread doesn't seem to be the async job owner: 0". This is done by
starting a migration phase.

While no monitor interaction happens in postcopy case and just setting
the phase (to indicate a broken postcopy migration) would be enough,
being consistent and setting the owner does not hurt anything.

Signed-off-by: Jiri Denemark <jdene...@redhat.com>
Reviewed-by: Peter Krempa <pkre...@redhat.com>
Reviewed-by: Pavel Hrdina <phrd...@redhat.com>
---

Notes:
    Version 2:
    - no change

 src/qemu/qemu_migration.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/src/qemu/qemu_migration.c b/src/qemu/qemu_migration.c
index 1396c1d9b4..616f812ef1 100644
--- a/src/qemu/qemu_migration.c
+++ b/src/qemu/qemu_migration.c
@@ -2317,6 +2317,7 @@ qemuMigrationAnyConnectionClosed(virDomainObj *vm,
     virQEMUDriver *driver = priv->driver;
     qemuDomainJobPrivate *jobPriv = priv->job.privateData;
     bool postcopy = false;
+    int phase;
 
     VIR_DEBUG("vm=%s, conn=%p, asyncJob=%s, phase=%s",
               vm->def->name, conn,
@@ -2376,12 +2377,17 @@ qemuMigrationAnyConnectionClosed(virDomainObj *vm,
         return;
     }
 
+    if (postcopy)
+        phase = QEMU_MIGRATION_PHASE_POSTCOPY_FAILED;
+    else
+        phase = QEMU_MIGRATION_PHASE_CONFIRM3_CANCELLED;
+    ignore_value(qemuMigrationJobStartPhase(vm, phase));
+
     if (postcopy) {
         if (priv->job.asyncJob == VIR_ASYNC_JOB_MIGRATION_OUT)
             qemuMigrationSrcPostcopyFailed(vm);
         else
             qemuMigrationDstPostcopyFailed(vm);
-        ignore_value(qemuMigrationJobSetPhase(vm, 
QEMU_MIGRATION_PHASE_POSTCOPY_FAILED));
         qemuDomainCleanupAdd(vm, qemuProcessCleanupMigrationJob);
         qemuMigrationJobContinue(vm);
     } else {
-- 
2.35.1