Hi Ming On 09/17/2018 08:07 PM, Ming Lei wrote: >>> This way will delay runtime pm or system suspend until the queue is >>> unfrozen, >>> but it isn't reasonable. >> This interface is for the __scsi_execute only, before we call into function, >> we should have >> get the device resumed synchronously. > I mean when the queue is frozen, it is reasonable to runtime suspend the > queue. However, > blk_queue_preempt_enter() is still waiting for queue becoming unfreezing > first.
We don't freeze the queue, but set preempt-only mode when suspend the queue. :) Thanks Jianchao
