linux-kernel - Re: [RFC][PATCH 3/5] sched: Change the ttwu success details

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Message-ID: <4D0C08E0.4040908@am.sony.com>
Date:	Fri, 17 Dec 2010 17:05:36 -0800
From:	Frank Rowand <frank.rowand@...sony.com>
To:	Peter Zijlstra <a.p.zijlstra@...llo.nl>
CC:	Chris Mason <chris.mason@...cle.com>,
	"Rowand, Frank" <Frank_Rowand@...yusa.com>,
	Ingo Molnar <mingo@...e.hu>,
	Thomas Gleixner <tglx@...utronix.de>,
	Mike Galbraith <efault@....de>,
	Oleg Nesterov <oleg@...hat.com>, Paul Turner <pjt@...gle.com>,
	Jens Axboe <axboe@...nel.dk>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [RFC][PATCH 3/5] sched: Change the ttwu success details

On 12/16/10 06:56, Peter Zijlstra wrote:
> try_to_wake_up() would only return a success when it would have to
> place a task on a rq, change that to every time we change p->state to
> TASK_RUNNING, because that's the real measure of wakeups.
> 
> This results in that success is always true for the tracepoint, so
> remove its success argument.
> 
> Signed-off-by: Peter Zijlstra <a.p.zijlstra@...llo.nl>

Looks good to me, so far.  But I still I have a few more places that call
try_to_wake_up() to validate.

Acked-by: Frank Rowand <frank.rowand@...sony.com>

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