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

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Message-ID: <1337096951.3515.11.camel@chief-river-32>
Date:	Tue, 15 May 2012 23:49:11 +0800
From:	Lin Ming <ming.m.lin@...el.com>
To:	Alan Stern <stern@...land.harvard.edu>
Cc:	Jens Axboe <axboe@...nel.dk>, linux-kernel@...r.kernel.org,
	linux-pm@...r.kernel.org, linux-scsi@...r.kernel.org
Subject: Re: [RFC PATCH 3/3] block: add queue idle timer

On Tue, 2012-05-15 at 10:39 -0400, Alan Stern wrote:
> 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.

OK, will use pm_runtime_autosuspend.

> 
> Alan Stern
> 


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