linux-kernel - Re: [PATCH] rtmutex: ensure only the top waiter or higher priority task can take the lock and reduce unrelated boosting

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Date:	Thu, 23 Dec 2010 07:56:10 -0500
From:	Steven Rostedt <rostedt@...dmis.org>
To:	Lai Jiangshan <laijs@...fujitsu.com>
Cc:	Thomas Gleixner <tglx@...utronix.de>, Ingo Molnar <mingo@...e.hu>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Dave Young <hidave.darkstar@...il.com>,
	Darren Hart <dvhart@...ux.intel.com>,
	Namhyung Kim <namhyung@...il.com>,
	LKML <linux-kernel@...r.kernel.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>
Subject: Re: [PATCH] rtmutex: ensure only the top waiter or higher priority
 task can take the lock and reduce unrelated boosting

On Thu, 2010-12-23 at 17:07 +0800, Lai Jiangshan wrote:
> On 12/15/2010 11:04 PM, Steven Rostedt wrote:
> > On Wed, 2010-12-15 at 16:09 +0800, Lai Jiangshan wrote:
> > 
> > Some English updates.
> 
> Updated, Thank you very much.
> 

Note, I've been working all week on a port for -rt. It required some
clean ups, but as I finished (last week), I keep hitting a "hung task"
when running dbench in a loop over night. I spent most the week trying
to debug it. But I'm starting to think this is something to do with -rt
and not your patch. So I'll be posting my patches later today.

-- Steve


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