On Fri, 18 Jan 2013, Aaron Lu wrote: > > Either you have to make sure the q->nr_pending is always correct, even > > when runtime PM isn't being used, or else the caller has to make sure > > that no I/O takes place before blk_pm_runtime_init is called. > > I think we can say: > blk_pm_runtime_init can't be called after any requests have been > submitted but not finished. > Sounds more accurate? Okay. I think you can add (in parentheses) that in most cases drivers should call the routine before any I/O has taken place. Alan Stern -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html