Re: [RFC PATCH 3/3] block: add queue idle timer

[Alan Stern]

On Tue, 15 May 2012, Lin Ming wrote:

> Add an idle timer that is set to some suitable timeout and would be
> added when the queue first goes empty. If nothing has happened during
> the timeout interval, then the queue is suspended.

You don't need to create an idle timer for runtime PM support; the 
runtime PM framework already has such a timer.  Read 
Documentation/power/runtime_pm.txt, especially the parts describing 
pm_runtime_autosuspend() and related functions.

Alan Stern

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