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From: Alan Stern <stern@rowland.harvard.edu>
To: Jens Axboe <axboe@kernel.dk>
Cc: Kernel development list <linux-kernel@vger.kernel.org>
Subject: Re: Runtime PM and the block layer
Date: Tue, 24 Aug 2010 17:09:03 -0400 (EDT)	[thread overview]
Message-ID: <Pine.LNX.4.44L0.1008241708050.1652-100000@iolanthe.rowland.org> (raw)
In-Reply-To: <4C74273B.4000308@kernel.dk>

On Tue, 24 Aug 2010, Jens Axboe wrote:

> > I see.  You're suggesting we add a new "power_mode" or "queue_idle"  
> > callback to the request_queue struct, and make the block layer invoke
> > this callback whenever a request completes and there are no other
> > requests pending or in flight.  Right?  And similarly, invoke the
> > callback (with a different argument) when the first request gets added
> > to an otherwise empty queue.
> > 
> > That would suit my needs.
> 
> Yep, that is what I'm suggesting.

All right, I'll work on this and get back to you when I need more help.  
Thanks for the advice.

Alan Stern


  reply	other threads:[~2010-08-24 21:09 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-08-23 19:17 Runtime PM and the block layer Alan Stern
2010-08-23 19:53 ` Jens Axboe
2010-08-23 21:51   ` Alan Stern
2010-08-24 13:15     ` Runtime power management during system resume Raj Kumar
2010-08-24 14:30       ` Alan Stern
2010-08-24 15:17         ` Raj Kumar
2010-08-24 17:50           ` Alan Stern
2010-08-25 13:27           ` Raj Kumar
2010-08-25 14:51             ` Alan Stern
2010-08-26 13:40             ` Raj Kumar
2010-08-26 14:33               ` Alan Stern
2010-09-18 11:49               ` (no subject) Raj Kumar
2010-09-18 15:36                 ` your mail Alan Stern
2010-09-18 15:56                   ` Dominik Brodowski
2010-10-05 21:40                 ` Question about hibernation Raj Kumar
2010-10-05 22:43                   ` Rafael J. Wysocki
2010-08-24 13:38     ` Runtime PM and the block layer Jens Axboe
2010-08-24 14:42       ` Alan Stern
2010-08-24 17:09         ` Jens Axboe
2010-08-24 20:06           ` Alan Stern
2010-08-24 20:10             ` Jens Axboe
2010-08-24 21:09               ` Alan Stern [this message]
2010-09-27 15:22           ` Alan Stern
2010-08-30 16:32       ` Alan Stern

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