linux-kernel - RE: [patch 1/2] x86: mce Cleanup timer mess

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Message-ID: <alpine.LFD.2.02.1206042155260.3086@ionos>
Date:	Mon, 4 Jun 2012 21:57:01 +0200 (CEST)
From:	Thomas Gleixner <tglx@...utronix.de>
To:	"Luck, Tony" <tony.luck@...el.com>
cc:	Chen Gong <gong.chen@...ux.intel.com>,
	LKML <linux-kernel@...r.kernel.org>,
	"bp@...64.org" <bp@...64.org>, "x86@...nel.org" <x86@...nel.org>,
	Peter Zijlstra <peterz@...radead.org>
Subject: RE: [patch 1/2] x86: mce Cleanup timer mess

On Mon, 4 Jun 2012, Luck, Tony wrote:

> > Here Thomas changed original mode from "*n = max(*n/2, HZ/100);"
> > to "iv = max(iv, (unsigned long) HZ/100);", which means *iv* will not
> > be decremented but only incremented in _else_ branch. If so, eventually
> > the *iv will be equal to *check_interval*. I don't think it makes sense.
> 
> It looks like Thomas just forgot the "/ 2" there while cleaning up.
> I didn't see it either, nor did Boris when he acked it. Thank goodness
> for your extra eyes looking at this.

Uurgh. Chen, thanks for spotting it!
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