Re: [PATCH] ata: ahci: power off unused ports

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From: Theodore Tso <tytso@...>

To: Kristen Carlson Accardi <kristen.c.accardi@...>

Cc: <jeff@...>, <linux-ide@...>, <linux-kernel@...>

Subject: Re: [PATCH] ata: ahci: power off unused ports

Date: Tuesday, May 27, 2008 - 6:59 pm

On Tue, May 27, 2008 at 02:32:02PM -0700, Kristen Carlson Accardi wrote:
quoted text> 
> As far as I know the patch has gone nowhere.  I believe that 
> Jeff wanted something more flexible than the module parameter that
> I provided to override the BIOS options.  I am not working on this,
> I figured he had a pretty firm idea what he wanted so he was better
> equipped to write the patch.

Thanks Kristen,

Can you say which laptops you had tested this on where it saved power?
(Did you test any Thinkpads, in particular?)  I'm wondering if it's
worth trying to forward port your patch as a private mod to my kernel;
30 to 40 minutes of extra battery life is nothing to sneeze at!

						- Ted
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Messages in current thread:

[PATCH] ata: ahci: power off unused ports, Kristen Carlson Accardi, (Thu May 8, 7:10 pm)

Re: [PATCH] ata: ahci: power off unused ports, Theodore Tso, (Mon May 26, 11:08 pm)

Re: [PATCH] ata: ahci: power off unused ports, Kristen Carlson Accardi, (Tue May 27, 5:32 pm)

Re: [PATCH] ata: ahci: power off unused ports, Theodore Tso, (Tue May 27, 6:59 pm)

Re: [PATCH] ata: ahci: power off unused ports, Kristen Carlson Accardi, (Tue May 27, 7:32 pm)

Re: [PATCH] ata: ahci: power off unused ports, Pavel Machek, (Sat May 31, 4:00 am)

Re: [PATCH] ata: ahci: power off unused ports, Jeff Garzik, (Sun Jun 1, 3:16 pm)

Re: [PATCH] ata: ahci: power off unused ports, Alan Cox, (Mon Jun 2, 3:04 am)

Re: [PATCH] ata: ahci: power off unused ports, Jeff Garzik, (Mon Jun 2, 3:43 am)

Re: [PATCH] ata: ahci: power off unused ports, Mark Lord, (Mon Jun 2, 9:03 am)

Re: [PATCH] ata: ahci: power off unused ports, Kristen Carlson Accardi, (Mon Jun 2, 12:57 pm)

Re: [PATCH] ata: ahci: power off unused ports, Jeff Garzik, (Mon Jun 2, 1:44 pm)

Re: [PATCH] ata: ahci: power off unused ports, Jeff Garzik, (Mon Jun 2, 12:07 pm)

Re: [PATCH] ata: ahci: power off unused ports, Kristen Carlson Accardi, (Mon Jun 2, 1:00 pm)

Re: [PATCH] ata: ahci: power off unused ports, Jeff Garzik, (Mon Jun 2, 1:45 pm)

Re: [PATCH] ata: ahci: power off unused ports, Kristen Carlson Accardi, (Mon Jun 2, 1:47 pm)

Re: [PATCH] ata: ahci: power off unused ports, Jeff Garzik, (Mon Jun 2, 2:15 pm)

Re: [PATCH] ata: ahci: power off unused ports, Kristen Carlson Accardi, (Mon Jun 2, 2:16 pm)

Re: [PATCH] ata: ahci: power off unused ports, Jeff Garzik, (Mon Jun 2, 2:38 pm)

Re: [PATCH] ata: ahci: power off unused ports, Kristen Carlson Accardi, (Tue Jun 3, 12:49 pm)

Re: [PATCH] ata: ahci: power off unused ports, Ric Wheeler, (Mon Jun 2, 2:30 pm)

Re: [PATCH] ata: ahci: power off unused ports, Jeff Garzik, (Mon Jun 2, 2:40 pm)

Re: [PATCH] ata: ahci: power off unused ports, Matthew Garrett, (Mon Jun 2, 4:00 pm)

Re: [PATCH] ata: ahci: power off unused ports, Ric Wheeler, (Mon Jun 2, 2:49 pm)

Re: [PATCH] ata: ahci: power off unused ports, Jeff Garzik, (Mon Jun 2, 2:52 pm)

Re: [PATCH] ata: ahci: power off unused ports, Greg Freemyer, (Mon Jun 2, 1:07 pm)

Re: [PATCH] ata: ahci: power off unused ports, Alan Cox, (Mon Jun 2, 4:22 am)

Re: [PATCH] ata: ahci: power off unused ports, Jeff Garzik, (Mon Jun 2, 5:48 am)

Re: [PATCH] ata: ahci: power off unused ports, Kristen Carlson Accardi, (Mon Jun 2, 12:55 pm)

Re: [PATCH] ata: ahci: power off unused ports, Alan Cox, (Mon Jun 2, 9:54 am)

Re: [PATCH] ata: ahci: power off unused ports, Mark Lord, (Fri May 9, 11:06 am)

Port control interface (was Re: [PATCH] ata: ahci: power off..., Jeff Garzik, (Fri May 9, 11:28 am)

Re: [PATCH] ata: ahci: power off unused ports, Matthew Garrett, (Thu May 8, 7:37 pm)

Re: [PATCH] ata: ahci: power off unused ports, Lennart Sorensen, (Fri May 9, 11:58 am)

Re: [PATCH] ata: ahci: power off unused ports, Matthew Garrett, (Fri May 9, 12:06 pm)

Re: [PATCH] ata: ahci: power off unused ports, Lennart Sorensen, (Fri May 9, 12:14 pm)

Re: [PATCH] ata: ahci: power off unused ports, Kristen Carlson Accardi, (Fri May 9, 1:14 pm)

Re: [PATCH] ata: ahci: power off unused ports, Kristen Carlson Accardi, (Thu May 8, 7:35 pm)

Re: [PATCH] ata: ahci: power off unused ports, Matthew Garrett, (Thu May 8, 8:14 pm)

Re: [PATCH] ata: ahci: power off unused ports, Kristen Carlson Accardi, (Thu May 8, 8:28 pm)

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