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From: Ric Wheeler <ric@emc.com>
To: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Tejun Heo <htejun@gmail.com>,
	linux-ide@vger.kernel.org, Jeff Garzik <jgarzik@pobox.com>,
	Mark Lord <mlord@pobox.com>
Subject: Re: error handling - DMA to PIO step down sequence
Date: Thu, 21 Sep 2006 12:50:08 -0400	[thread overview]
Message-ID: <4512C2C0.9010503@emc.com> (raw)
In-Reply-To: <1158858264.11109.159.camel@localhost.localdomain>

Alan Cox wrote:
> Ar Iau, 2006-09-21 am 12:26 -0400, ysgrifennodd Ric Wheeler:
> 
>>>>Would this be a reasonable thing for a config option? Better to add 
>>>>yet another blacklist for devices that might have a justified need for 
>>>>this derating?
> 
> 
> I think so. I've got "Adding a set of flags to blacklist entries" on my
> todo list so that we can indicate and deal with different kinds of
> horkage.
> 

That could be very useful - flag specific drives to disable NCQ 
(regardless of the internal setting for drive queue depth) and so on.

ric


  reply	other threads:[~2006-09-21 16:56 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-09-20 19:03 error handling - DMA to PIO step down sequence Ric Wheeler
2006-09-21 15:09 ` Tejun Heo
2006-09-21 16:26   ` Ric Wheeler
2006-09-21 17:04     ` Alan Cox
2006-09-21 16:50       ` Ric Wheeler [this message]
2006-09-21 16:58         ` Tejun Heo

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