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

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Message-ID: <20070703170233.GA25129@srcf.ucam.org>
Date:	Tue, 3 Jul 2007 18:02:33 +0100
From:	Matthew Garrett <mjg59@...f.ucam.org>
To:	Alan Stern <stern@...land.harvard.edu>
Cc:	linux-kernel@...r.kernel.org, linux-pm@...ts.linux-foundation.org
Subject: Re: [linux-pm] [PATCH] Remove process freezer from suspend to RAM pathway

On Tue, Jul 03, 2007 at 12:57:17PM -0400, Alan Stern wrote:
> On Tue, 3 Jul 2007, Matthew Garrett wrote:
> > On Tue, Jul 03, 2007 at 12:03:33PM -0400, Alan Stern wrote:
> > > Quite apart from the sync() matter, _any_ synchronous call to a FUSE 
> > > filesystem during STR will cause trouble.  Even if the user task 
> > > implementing the filesystem isn't frozen, when it tries to carry out 
> > > some I/O to a suspended device it will either:
> > > 
> > > 	block until the system wakes up, or
> > 
> > For the suspend to RAM case, that sounds absolutely fine.
> 
> It's not so good when your suspend process has to wait for the call to 
> complete!

Why would it have to? Sorry, I suspect I'm missing something obvious 
here.

-- 
Matthew Garrett | mjg59@...f.ucam.org
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