linux-kernel - Re: [(RT RFC) PATCH v2 4/9] optimize rt lock wakeup

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Date:	Mon, 03 Mar 2008 08:41:56 -0700
From:	"Gregory Haskins" <ghaskins@...ell.com>
To:	"Steven Rostedt" <rostedt@...dmis.org>
Cc:	<a.p.zijlstra@...llo.nl>, <mingo@...e.hu>, <bill.huey@...il.com>,
	<kevin@...man.org>, <tglx@...utronix.de>, <cminyard@...sta.com>,
	<dsingleton@...sta.com>, <dwalker@...sta.com>,
	"Moiz Kohari" <MKohari@...ell.com>,
	"Peter Morreale" <PMorreale@...ell.com>,
	"Sven Dietrich" <SDietrich@...ell.com>, <dsaxena@...xity.net>,
	<acme@...hat.com>, <ak@...e.de>, <gregkh@...e.de>,
	<npiggin@...e.de>, <pavel@....cz>, <linux-kernel@...r.kernel.org>,
	<linux-rt-users@...r.kernel.org>
Subject: Re: [(RT RFC) PATCH v2 4/9] optimize rt lock wakeup

>>> On Mon, Mar 3, 2008 at 10:37 AM, in message
<Pine.LNX.4.58.0803031036380.18766@...dalf.stny.rr.com>, Steven Rostedt
<rostedt@...dmis.org> wrote: 

> On Mon, 25 Feb 2008, Gregory Haskins wrote:
> 
>> It is redundant to wake the grantee task if it is already running
> 
> This is only expensive for your adaptive mutex algorithm, not what is in
> there today. It belongs _after_ the adaptive mutex patch in the series.
> 
> -- Steve

Fair enough.

-Greg

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