Re: [PATCH V3 00/17] SCSI: introduce per-host admin queue & enable runtime PM

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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



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