linux-kernel - Re: [patch 3/3] Enable Aggressive Link Power management for AHCI controllers.

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Message-ID: <20070612090940.GA9719@srcf.ucam.org>
Date:	Tue, 12 Jun 2007 10:09:41 +0100
From:	Matthew Garrett <mjg59@...f.ucam.org>
To:	Arjan van de Ven <arjan@...ux.intel.com>
Cc:	Henrique de Moraes Holschuh <hmh@....eng.br>,
	Jeff Garzik <jeff@...zik.org>,
	Dagfinn Ilmari Mannsåker <ilmari@...ari.org>,
	Kristen Carlson Accardi <kristen.c.accardi@...el.com>,
	james.bottomley@...eleye.com, linux-ide@...r.kernel.org,
	linux-scsi@...r.kernel.org, linux-kernel@...r.kernel.org,
	htejun@...il.com
Subject: Re: [patch 3/3] Enable Aggressive Link Power management for AHCI controllers.

On Mon, Jun 11, 2007 at 08:59:46PM -0700, Arjan van de Ven wrote:

> that's a temporary shortcoming; even with these power savings you can 
> do hotplug as long as you're willing to poll for it at a reasonable 
> interval and are willing to wait the time between polls for a hotplug 
> to take effect..

On laptops, I suspect that we'll probably get an ACPI interrupt even if 
the AHCI hotplug pathway can't manage.

-- 
Matthew Garrett | mjg59@...f.ucam.org
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