From: zhanghailiang <zhang.zhanghaili...@huawei.com>
COLO thread may sleep at qemu_sem_wait(&s->colo_checkpoint_sem),
while failover works begin, It's better to wakeup it to quick
the process.
Signed-off-by: zhanghailiang <zhang.zhanghaili...@huawei.com>
---
migration/colo.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/migration/colo.c b/migration/colo.c
index 1a59baa..1bc5f02 100644
--- a/migration/colo.c
+++ b/migration/colo.c
@@ -134,6 +134,11 @@ static void primary_vm_do_failover(void)
migrate_set_state(&s->state, MIGRATION_STATUS_COLO,
MIGRATION_STATUS_COMPLETED);
+ /*
+ * kick COLO thread which might wait at
+ * qemu_sem_wait(&s->colo_checkpoint_sem).
+ */
+ colo_checkpoint_notify(migrate_get_current());
/*
* Wake up COLO thread which may blocked in recv() or send(),
@@ -549,6 +554,9 @@ static void colo_process_checkpoint(MigrationState *s)
qemu_sem_wait(&s->colo_checkpoint_sem);
+ if (s->state != MIGRATION_STATUS_COLO) {
+ goto out;
+ }
ret = colo_do_checkpoint_transaction(s, bioc, fb);
if (ret < 0) {
goto out;
--
2.7.4
