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From: Tejun Heo <htejun@gmail.com>
To: Jeff Garzik <jgarzik@pobox.com>
Cc: alan@lxorguk.ukuu.org.uk, linux-ide@vger.kernel.org
Subject: Re: [PATCHSET] hotplug polling, take 5
Date: Wed, 01 Nov 2006 12:38:04 +0900	[thread overview]
Message-ID: <4548169C.9070305@gmail.com> (raw)
In-Reply-To: <454812EB.2050907@pobox.com>

Jeff Garzik wrote:
>> Link powersave patchset should handle that together but I'm still not 
>> sure what to do w/ user interface (which sysfs node to use).  Also, 
>> controllers which are used on laptops && use hp-poll by default are 
>> sata_nv (old ones) and some variant of sata_sil used in ati chipset. 
>> So, it shouldn't cause trouble for most laptop users.
> 
> I'm not saying it causes trouble.  Just saying that polling unused ports 
> is practically guaranteed to require more power than never doing so.

Yeap, no objection there.

> It shouldn't be hard to figure out where to poke stuff into sysfs...

I dunno.  It's policy decision and we don't have ATA sysfs nodes yet. 
So, where do we begin?  Is it time to start /sys/class/ata_host/ataX tree?

Thanks.

-- 
tejun

      reply	other threads:[~2006-11-01  3:38 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-10-15 22:37 [PATCHSET] hotplug polling, take 5 Tejun Heo
2006-10-15 22:37 ` [PATCH 1/3] libata: implement hotplug by polling Tejun Heo
2006-10-15 22:37 ` [PATCH 2/3] libata: add hp-poll support to controllers with hotplug interrutps Tejun Heo
2006-10-15 22:37 ` [PATCH 3/3] libata: add hp-poll support to controllers without hotplug interrupts Tejun Heo
2006-11-01  2:07 ` [PATCHSET] hotplug polling, take 5 Jeff Garzik
2006-11-01  3:02   ` Tejun Heo
2006-11-01  3:22     ` Jeff Garzik
2006-11-01  3:38       ` Tejun Heo [this message]

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