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authorVladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>2023-05-17 15:37:51 +0300
committerJuan Quintela <quintela@redhat.com>2023-06-02 01:03:19 +0200
commitf4584076fc318bb4ac762e3c09ff3544938fed5b (patch)
tree2edc3afdd72f63bdfdc5bff6d426d2e6919e9516 /migration/migration.c
parente76005a081d08d1e42d98811fba983c59b3f736b (diff)
downloadfocaccia-qemu-f4584076fc318bb4ac762e3c09ff3544938fed5b.tar.gz
focaccia-qemu-f4584076fc318bb4ac762e3c09ff3544938fed5b.zip
migration: switch from .vm_was_running to .vm_old_state
No logic change here, only refactoring. That's a preparation for next
commit where we finally restore the stopped vm state on migration
failure or cancellation.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Message-Id: <20230517123752.21615-5-vsementsov@yandex-team.ru>
Signed-off-by: Juan Quintela <quintela@redhat.com>
Diffstat (limited to 'migration/migration.c')
-rw-r--r--migration/migration.c11
1 files changed, 6 insertions, 5 deletions
diff --git a/migration/migration.c b/migration/migration.c
index c75d5aa479..033162cda0 100644
--- a/migration/migration.c
+++ b/migration/migration.c
@@ -1402,7 +1402,7 @@ void migrate_init(MigrationState *s)
 
     s->start_time = qemu_clock_get_ms(QEMU_CLOCK_REALTIME);
     s->total_time = 0;
-    s->vm_was_running = false;
+    s->vm_old_state = -1;
     s->iteration_initial_bytes = 0;
     s->threshold_size = 0;
 }
@@ -2287,7 +2287,8 @@ static void migration_completion(MigrationState *s)
         qemu_mutex_lock_iothread();
         s->downtime_start = qemu_clock_get_ms(QEMU_CLOCK_REALTIME);
         qemu_system_wakeup_request(QEMU_WAKEUP_REASON_OTHER, NULL);
-        s->vm_was_running = runstate_is_running();
+
+        s->vm_old_state = runstate_get();
         global_state_store();
 
         ret = vm_stop_force_state(RUN_STATE_FINISH_MIGRATE);
@@ -2760,12 +2761,12 @@ static void migration_iteration_finish(MigrationState *s)
     case MIGRATION_STATUS_COLO:
         assert(migrate_colo());
         migrate_start_colo_process(s);
-        s->vm_was_running = true;
+        s->vm_old_state = RUN_STATE_RUNNING;
         /* Fallthrough */
     case MIGRATION_STATUS_FAILED:
     case MIGRATION_STATUS_CANCELLED:
     case MIGRATION_STATUS_CANCELLING:
-        if (s->vm_was_running) {
+        if (s->vm_old_state == RUN_STATE_RUNNING) {
             if (!runstate_check(RUN_STATE_SHUTDOWN)) {
                 vm_start();
             }
@@ -3085,7 +3086,7 @@ static void *bg_migration_thread(void *opaque)
      * transition in vm_stop_force_state() we need to wakeup it up.
      */
     qemu_system_wakeup_request(QEMU_WAKEUP_REASON_OTHER, NULL);
-    s->vm_was_running = runstate_is_running();
+    s->vm_old_state = runstate_get();
 
     global_state_store();
     /* Forcibly stop VM before saving state of vCPUs and devices */