linux-kernel - Re: [linux-pm] [PATCH] libata: skip EH autopsy and recovery during suspend

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Message-Id: <201009022309.56824.rjw@sisk.pl>
Date:	Thu, 2 Sep 2010 23:09:56 +0200
From:	"Rafael J. Wysocki" <rjw@...k.pl>
To:	Alan Stern <stern@...land.harvard.edu>
Cc:	Tejun Heo <htejun@...il.com>,
	"linux-ide@...r.kernel.org" <linux-ide@...r.kernel.org>,
	Stephan Diestelhorst <stephan.diestelhorst@...il.com>,
	"linux-pm@...ts.osdl.org" <linux-pm@...ts.osdl.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Stephan Diestelhorst <stephan.diestelhorst@....com>
Subject: Re: [linux-pm] [PATCH] libata: skip EH autopsy and recovery during suspend

On Thursday, September 02, 2010, Alan Stern wrote:
> On Thu, 2 Sep 2010, Tejun Heo wrote:
> 
> > Hello,
> > 
> > On 09/02/2010 10:28 PM, Rafael J. Wysocki wrote:
> > > That would be very nice.  In particular, I'd like to get rid of the
> > > pm_message_t thing if possible.  And I'd like to avoid putting the
> > > controller into D3 before creating hibernation image. :-)
> 
> Ultimately I don't think it will be possible to get rid of pm_message_t
> throughout the entire kernel.  Not just because it's a legacy thing
> spread all over the place, but because it sometimes is genuinely
> useful.  In situations where there are only minimal differences between
> the various suspend/resume paths, it makes a lot of sense to call a
> single function and tell it which type of operation to perform.

Well, that's why I said "if possible" above. :-)

Thanks,
Rafael
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