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Gmane
From: Linus Torvalds <torvalds <at> linux-foundation.org>
Subject: Re: Async suspend-resume patch w/ completions (was: Re: Async suspend-resume patch w/ rwsems)
Newsgroups: gmane.linux.acpi.devel
Date: Friday 11th December 2009 23:53:14 UTC (over 7 years ago)
On Sat, 12 Dec 2009, Rafael J. Wysocki wrote:
> 
> Below is a patch I've just tested, but there's a lockdep problem in it I
don't
> know how to solve.  Namely, lockdep is apparently unhappy with us not
releasing
> the lock taken in device_suspend() and it complains we take it twice in a
row
> (which we do, but for another device).  I need to use
down_read_non_owner()
> to make it shut up and then I also need to use up_read_non_owner() in
> __device_suspend(),

Ok, that I admit is actually a problem.

Ok, ok, I'll accept that completion() version, even though I think it's 
inferior.

		Linus
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CD: 3ms