[PULL 07/10] migration: drop colo_incoming_thread from MigrationIncomingState

[Juan Quintela <quintela@redhat.com>]

From: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>

have_colo_incoming_thread variable is unused. colo_incoming_thread can
be local.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Zhang Chen <chen.zhang@intel.com>
Message-Id: <20230428194928.1426370-6-vsementsov@yandex-team.ru>
Signed-off-by: Juan Quintela <quintela@redhat.com>
---
 migration/migration.h | 2 --
 migration/migration.c | 7 ++++---
 2 files changed, 4 insertions(+), 5 deletions(-)

diff --git a/migration/migration.h b/migration/migration.h
index 3a918514e7..7721c7658b 100644
--- a/migration/migration.h
+++ b/migration/migration.h
@@ -162,8 +162,6 @@ struct MigrationIncomingState {
 
     int state;
 
-    bool have_colo_incoming_thread;
-    QemuThread colo_incoming_thread;
     /* The coroutine we should enter (back) after failover */
     Coroutine *migration_incoming_co;
     QemuSemaphore colo_incoming_sem;
diff --git a/migration/migration.c b/migration/migration.c
index 61b316245d..c7f628caa6 100644
--- a/migration/migration.c
+++ b/migration/migration.c
@@ -544,6 +544,8 @@ process_incoming_migration_co(void *opaque)
 
     /* we get COLO info, and know if we are in COLO mode */
     if (!ret && migration_incoming_colo_enabled()) {
+        QemuThread colo_incoming_thread;
+
         /* Make sure all file formats throw away their mutable metadata */
         bdrv_activate_all(&local_err);
         if (local_err) {
@@ -551,14 +553,13 @@ process_incoming_migration_co(void *opaque)
             goto fail;
         }
 
-        qemu_thread_create(&mis->colo_incoming_thread, "COLO incoming",
+        qemu_thread_create(&colo_incoming_thread, "COLO incoming",
              colo_process_incoming_thread, mis, QEMU_THREAD_JOINABLE);
-        mis->have_colo_incoming_thread = true;
         qemu_coroutine_yield();
 
         qemu_mutex_unlock_iothread();
         /* Wait checkpoint incoming thread exit before free resource */
-        qemu_thread_join(&mis->colo_incoming_thread);
+        qemu_thread_join(&colo_incoming_thread);
         qemu_mutex_lock_iothread();
         /* We hold the global iothread lock, so it is safe here */
         colo_release_ram_cache();
-- 
2.40.1