linux-kernel - Re: [PATCH 03/32 RESEND] nohz: Drop useless ts->inidle check before rearming the tick

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Message-ID: <1314627795.2816.61.camel@twins>
Date:	Mon, 29 Aug 2011 16:23:15 +0200
From:	Peter Zijlstra <a.p.zijlstra@...llo.nl>
To:	Frederic Weisbecker <fweisbec@...il.com>
Cc:	LKML <linux-kernel@...r.kernel.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Anton Blanchard <anton@....ibm.com>,
	Avi Kivity <avi@...hat.com>, Ingo Molnar <mingo@...e.hu>,
	Lai Jiangshan <laijs@...fujitsu.com>,
	"Paul E . McKenney" <paulmck@...ux.vnet.ibm.com>,
	Paul Menage <menage@...gle.com>,
	Stephen Hemminger <shemminger@...tta.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Tim Pepper <lnxninja@...ux.vnet.ibm.com>
Subject: Re: [PATCH 03/32 RESEND] nohz: Drop useless ts->inidle check before
 rearming the tick

On Mon, 2011-08-15 at 17:52 +0200, Frederic Weisbecker wrote:
> We only need to check if we have ts->stopped to ensure the tick
> was stopped and we want to re-enable it. Checking ts->inidle
> there is useless. 

/me goes la-la-la-la... 

It would so help poor little me who hasn't stared at this code in detail
for the past several days and is thus horridly confused if you'd expand
your reasoning somewhat.
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