Hi Ming On 09/18/2018 08:15 PM, Ming Lei wrote: > The adminq request can be quisced in the scsi_device level, just as normal IO > request, because the scsi_device instance is same with normal IO. Yes, the scsi_queue_rq->scsi_prep_state_check could gate things out of. > > But in blk-mq level, this admin queue won't be quiesced or frozen at all. But the scsi_queue_rq/scsi_request_fn will be invoked, right ? This is different from the original implementation. Thanks Jianchao