Re: [PATCH] scsi: sd: add runtime pm to open / release

[Alan Stern]

On Tue, Jun 30, 2020 at 04:31:58PM -0700, Bart Van Assche wrote:
> On 2020-06-30 12:38, Alan Stern wrote:
> > Assume that BLK_MQ_REQ_PREEMPT is set in flags.  Then where exactly 
> > does blk_queue_enter(q, flags) call blk_pm_request_resume(q)?
> 
> Please take a look at how the *current* implementation of runtime power
> management works. Your question is relevant for the old implementation
> of runtime power management but not for the current implementation.

What do you mean by "current"?  I have been looking at the implementation 
in 5.8-rc3 from Linus's tree.  Should I look somewhere else?

Alan Stern