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Date: Fri, 13 Jan 2006 15:01:20 -0800
From: Andrew Morton <akpm@osdl.org>
To: Andi Kleen <ak@suse.de>
Cc: drepper@gmail.com, robustmutexes@lists.osdl.org, mingo@elte.hu,
       linux-kernel@vger.kernel.org, daviado@gmail.com
Subject: Re: Robust futex patch for Linux 2.6.15
Message-Id: <20060113150120.7ab2cfe4.akpm@osdl.org>
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Andi Kleen <ak@suse.de> wrote:
>
> Andrew Morton <akpm@osdl.org> writes:
> > 
> > +static int futex_deadlock(struct rt_mutex *lock)
> > +{
> > +	DEFINE_WAIT(wait);
> > +
> > +	_raw_spin_unlock(&lock->wait_lock);
> > +	_raw_spin_unlock(&current->pi_lock);
> 
> And why is there a pi_lock if the code isn't supposed to support PI?
> 

That was a copy-n-paste from a -rt patch I happened to find.  The URL David
sent was bust, and there are various things in the directory there.  Maybe
we were supposed to look in a tarball, dunno.