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由 John Ferlan 提交于
This patch will add the qemuMonitorJSONGetMemoryStats() to execute a "guest-stats" on the balloonpath using "get-qom" replacing the former mechanism which looked through the "query-ballon" returned data for the fields. The "query-balloon" code only returns 'actual' memory. Rather than duplicating the existing code, have the JSON API use the GetBalloonInfo API. A check in the qemuMonitorGetMemoryStats() will be made to ensure the balloon driver path has been set. Since the underlying JSON code can return data not associated with the balloon driver, we don't fail on a failure to get the balloonpath. Of course since we've made the check, we can then set the ballooninit flag. Getting the path here is primarily due to the process reconnect path which doesn't attempt to set the collection period.
ab600621