linux-kernel - Re: [PATCH -v2 5/5] x86: use dmi check to treat disabled cpus as hotplug cpus.

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Message-ID: <87tyupfzk8.fsf@basil.nowhere.org>
Date:	Wed, 13 Jan 2010 22:46:31 +0100
From:	Andi Kleen <andi@...stfloor.org>
To:	Yinghai Lu <yinghai@...nel.org>
Cc:	Suresh Siddha <suresh.b.siddha@...el.com>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	"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" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH -v2 5/5] x86: use dmi check to treat disabled cpus as hotplug cpus.

Yinghai Lu <yinghai@...nel.org> writes:
>
> so you want to treat those disabled cpus in the those system as hotplug cpus or not?

Why not? It's not that a hotplug cpu is particularly expensive.
It's just a bunch of memory and not even very much of it.

White and blacklists just to save a small amount of memory
seem like a bad idea.

-Andi

-- 
ak@...ux.intel.com -- Speaking for myself only.
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