linux-kernel - Re: autosuspend for SCSI devices

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Message-ID: <20080828080427.GD15474@elf.ucw.cz>
Date:	Thu, 28 Aug 2008 10:04:27 +0200
From:	Pavel Machek <pavel@...e.cz>
To:	Oliver Neukum <oneukum@...e.de>
Cc:	"Rafael J. Wysocki" <rjw@...k.pl>,
	linux-pm@...ts.linux-foundation.org,
	James.Bottomley@...senpartnership.com,
	linux-kernel@...r.kernel.org, teheo@...ell.com,
	stefanr@...6.in-berlin.de, Martin.Leisner@...ox.com
Subject: Re: autosuspend for SCSI devices

On Tue 2008-08-26 13:01:43, Oliver Neukum wrote:
> Am Dienstag 26 August 2008 11:43:55 schrieb Pavel Machek:
> > > firstly, it doesn't consider error handling before suspending.
> > 
> > What problems do you see with error handling? This patch does not
> > touch the error handling, and I do not think it needs to touch it.
> 
> You'd make scsi driver writers' life easier if you made sure no autosuspends
> happen while they recover from errors. After all, you have no idea which
> commands will get through while the bus is in disarray.

Well, they have to handle other commands while bus has problems,
anyway, right? So I'm not creating any _new_ problems for them. 

									Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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