linux-kernel - Re: [PATCH] clocksource: Avoid selecting mult values that might overflow when adjusted

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Message-ID: <alpine.LFD.2.02.1111031304210.2829@ionos>
Date:	Thu, 3 Nov 2011 13:05:19 +0100 (CET)
From:	Thomas Gleixner <tglx@...utronix.de>
To:	John Stultz <john.stultz@...aro.org>
cc:	LKML <linux-kernel@...r.kernel.org>,
	Yong Zhang <yong.zhang0@...il.com>,
	David Daney <ddaney.cavm@...il.com>
Subject: Re: [PATCH] clocksource: Avoid selecting mult values that might
 overflow when adjusted

On Wed, 2 Nov 2011, John Stultz wrote:
>  
> +	WARN_ONCE(timekeeper.mult+adj >
> +			timekeeper.clock->mult + timekeeper.clock->maxadj,
> +			"Adjusting more then 11%%");

Shouldn't we rather limit the update instead of just warn and overflow ?

Thanks,

	tglx
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