linux-kernel - Re: [PATCH] [7/9] Add an option to disable direct mapping gbpages and a global variable

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Message-ID: <alpine.LFD.1.00.0801311711130.9204@apollo.tec.linutronix.de>
Date:	Thu, 31 Jan 2008 17:12:35 +0100 (CET)
From:	Thomas Gleixner <tglx@...utronix.de>
To:	Andi Kleen <ak@...e.de>
cc:	mingo@...e.hu, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] [7/9] Add an option to disable direct mapping gbpages
 and a global variable

On Tue, 29 Jan 2008, Andi Kleen wrote:
> +int direct_gbpages;
> +
> +static int __init parse_direct_gbpages(char *arg)
> +{
> +	if (!strcmp(arg, "off")) {
> +		direct_gbpages = -1;
> +		return 0;
> +	}
> +	return -1;
> +}
> +early_param("direct_gbpages", parse_direct_gbpages);

Can we please use simple boolean logic ? This 0, -1, 1 magic is more
than confusing.

Thanks,
	tglx
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