linux-kernel - Re: [ANNOUNCE] 3.2.9-rt17

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Message-ID: <1331242104.11248.432.camel@twins>
Date:	Thu, 08 Mar 2012 22:28:24 +0100
From:	Peter Zijlstra <peterz@...radead.org>
To:	Steven Rostedt <rostedt@...dmis.org>
Cc:	Thomas Gleixner <tglx@...utronix.de>,
	LKML <linux-kernel@...r.kernel.org>,
	linux-rt-users <linux-rt-users@...r.kernel.org>
Subject: Re: [ANNOUNCE] 3.2.9-rt17

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.
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