linux-kernel - Re: [patch 4/6] rtmutex: Confine deadlock logic to futex

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Message-ID: <20140522071039.GO30445@twins.programming.kicks-ass.net>
Date:	Thu, 22 May 2014 09:10:39 +0200
From:	Peter Zijlstra <peterz@...radead.org>
To:	Thomas Gleixner <tglx@...utronix.de>
Cc:	LKML <linux-kernel@...r.kernel.org>,
	Ingo Molnar <mingo@...nel.org>,
	Steven Rostedt <rostedt@...dmis.org>,
	Lai Jiangshan <laijs@...fujitsu.com>
Subject: Re: [patch 4/6] rtmutex: Confine deadlock logic to futex

On Thu, May 22, 2014 at 03:25:50AM -0000, Thomas Gleixner wrote:
> The builtin tester is gone,, so the deadlock logic is now only
> required for futexes.
> 
> Remove the extra arguments for the public functions and also for the
> futex specific ones which get always called with deadlock detection
> enabled.

This reminds me, the raw rt_mutex primitives have no lockdep support,
and we've grown a few users in-tree. We should fix that.

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