linux-kernel - Re: [RFC PATCH 1/4] use nr_cpus= to set nr_cpu

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Message-ID: <alpine.LFD.2.00.1001111906120.17145@localhost.localdomain>
Date:	Mon, 11 Jan 2010 19:06:27 -0800 (PST)
From:	Linus Torvalds <torvalds@...ux-foundation.org>
To:	Yinghai Lu <yinghai@...nel.org>
cc:	Suresh Siddha <suresh.b.siddha@...el.com>,
	"ananth@...ibm.com" <ananth@...ibm.com>,
	Ingo Molnar <mingo@...e.hu>,
	Thomas Gleixner <tglx@...utronix.de>,
	"H. Peter Anvin" <hpa@...or.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org
Subject: Re: [RFC PATCH 1/4] use nr_cpus= to set nr_cpu_ids early



On Mon, 11 Jan 2010, Yinghai Lu wrote:
>
> on x86, before prefill_possible_map(), nr_cpu_ids will be NR_CPUS aka CONFIG_NR_CPUS
> 
> add nr_cpus= to set nr_cpu_ids. so we can simulate cpus <=8 on normal config.
> instead of change NR_CPUS directly.

Looks sane.

		Linus
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