ping ? On 2016/11/2 15:42, zhanghailiang wrote:
We forgot to assign true to params->has_x_checkpoint_delay parameter in qmp_query_migrate_parameters.Without this, qmp command 'query-migrate-parameters' doesn't show the default value for x-checkpoint-delay option. This also fixes the fact that HMP was relying on unspecified behavior by reading x_checkpoint_delay without checking has_x_checkpoint_delay. Signed-off-by: zhanghailiang <zhang.zhanghaili...@huawei.com> Reviewed-by: Eric Blake <ebl...@redhat.com> --- v2: - fix the commit message as Eric sugguested. --- hmp.c | 1 + migration/migration.c | 1 + 2 files changed, 2 insertions(+) diff --git a/hmp.c b/hmp.c index b5e3f54..02103df 100644 --- a/hmp.c +++ b/hmp.c @@ -318,6 +318,7 @@ void hmp_info_migrate_parameters(Monitor *mon, const QDict *qdict) monitor_printf(mon, " %s: %" PRId64 " milliseconds", MigrationParameter_lookup[MIGRATION_PARAMETER_DOWNTIME_LIMIT], params->downtime_limit); + assert(params->has_x_checkpoint_delay); monitor_printf(mon, " %s: %" PRId64, MigrationParameter_lookup[MIGRATION_PARAMETER_X_CHECKPOINT_DELAY], params->x_checkpoint_delay); diff --git a/migration/migration.c b/migration/migration.c index e331f28..f498ab8 100644 --- a/migration/migration.c +++ b/migration/migration.c @@ -593,6 +593,7 @@ MigrationParameters *qmp_query_migrate_parameters(Error **errp) params->max_bandwidth = s->parameters.max_bandwidth; params->has_downtime_limit = true; params->downtime_limit = s->parameters.downtime_limit; + params->has_x_checkpoint_delay = true; params->x_checkpoint_delay = s->parameters.x_checkpoint_delay; return params;
