From mboxrd@z Thu Jan  1 00:00:00 1970
From: Peter Zijlstra <peterz@infradead.org>
Subject: Re: [ANNOUNCE] 3.2.9-rt17
Date: Thu, 08 Mar 2012 22:28:24 +0100
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Cc: Thomas Gleixner <tglx@linutronix.de>,
	LKML <linux-kernel@vger.kernel.org>,
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To: Steven Rostedt <rostedt@goodmis.org>
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On Thu, 2012-03-08 at 16:25 -0500, Steven Rostedt wrote:
> 
> How would this be different than what mainline does? When the lock is
> released, it will wake up the other task. 

mainline has ticket locks, the rt-mutex stuff has equal priority lock
stealing, waking up the blocked task will take so long our running loop
will have re-acquired ->d_lock again before it even gets to trying.