linux-kernel - Re: [PATCH] conditionalize some x86-64 options

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Date:	Tue, 7 Nov 2006 00:50:31 +0100
From:	Andi Kleen <ak@...e.de>
To:	"Ulrich Drepper" <drepper@...il.com>
Cc:	"Linux Kernel Mailing List" <linux-kernel@...r.kernel.org>,
	"Andrew Morton" <akpm@...l.org>
Subject: Re: [PATCH] conditionalize some x86-64 options

On Tuesday 07 November 2006 00:19, Ulrich Drepper wrote:
> On 11/4/06, Andi Kleen <ak@...e.de> wrote:
> > No -- the CPU selection on x86-64 means "optimize for", but doesn't
> > mean don't run on other CPUs.
> 
> Then please explain this:
> 
> config X86_HT
>         bool
>         depends on SMP && !MK8
>         default y

HT scheduler is just an optimization -- not needed for any functionality.
Doesn't break anything when not there.

But I agree the && !MK8 is bogus and should be probably removed
(or perhaps moved into a default) 

-Andi

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