diff options
| author | zhanghailiang <zhang.zhanghailiang@huawei.com> | 2018-09-03 12:38:59 +0800 |
|---|---|---|
| committer | Jason Wang <jasowang@redhat.com> | 2018-10-19 11:15:03 +0800 |
| commit | 2518aec19250531c4e03208b273a6b44b1344c33 (patch) | |
| tree | 3a69e23437ab03136427a551a5f0c4df6f1380dc /migration/colo.c | |
| parent | 7b3435309d27910587c7e6e8ba07e4070fb37bbb (diff) | |
COLO: quick failover process by kick COLO thread
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.zhanghailiang@huawei.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Diffstat (limited to 'migration/colo.c')
| -rw-r--r-- | migration/colo.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/migration/colo.c b/migration/colo.c index 57a85424fc..956ac236b7 100644 --- a/migration/colo.c +++ b/migration/colo.c @@ -131,6 +131,11 @@ 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(), @@ -539,6 +544,9 @@ 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; |