linux-kernel - Re: [linux-pm] Re: [PATCH] Remove process freezer from suspend to RAM pathway

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Message-Id: <200707060904.09497.rjw@sisk.pl>
Date:	Fri, 6 Jul 2007 09:04:08 +0200
From:	"Rafael J. Wysocki" <rjw@...k.pl>
To:	Benjamin Herrenschmidt <benh@...nel.crashing.org>
Cc:	Oliver Neukum <oliver@...kum.org>,
	Miklos Szeredi <miklos@...redi.hu>, paulus@...ba.org,
	stern@...land.harvard.edu, johannes@...solutions.net,
	linux-pm@...ts.linux-foundation.org, linux-kernel@...r.kernel.org,
	pavel@....cz, mjg59@...f.ucam.org
Subject: Re: [linux-pm] Re: [PATCH] Remove process freezer from suspend to RAM pathway

On Friday, 6 July 2007 00:38, Benjamin Herrenschmidt wrote:
> 
> > There is that.
> > 
> > OK, bite the bullet. Tasks involved in fuse are special. Give them a flag
> > and teach the freezer to put them on ice only after all other task are
> > frozen. In a way they are kernel, there's no use denying that.
> 
> Yet another ugly hack to work around the fact that the freezer cannot
> work reliably ... yuck
> 
> Why not spend that energy fixing drivers to properly block requests
> instead ?

Because it's more difficult? :-)

Greetings,
Rafael


-- 
"Premature optimization is the root of all evil." - Donald Knuth
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