Re: [PATCH 8/8] kernel/cpu.c: Define bsp_hotpluggable variable

From: Thomas Gleixner
Date: Wed Oct 05 2011 - 15:26:04 EST

On Wed, 5 Oct 2011, Fenghua Yu wrote:

> From: Fenghua Yu <fenghua.yu@xxxxxxxxx>
> This gloable variable controls BSP (aka CPU0) hotplug. If set, BSP is
> hotpluggable. By default, it's 0. On X86, kernel option bsp_hotpluggable sets
> the variable as 1.

.... and on !x86 its just pointless.

I have yet to see a justification for that whole cpu0 unplugging

If there is a real reason that this is desireable, then ALL cpu0
assumptions in arch/x86 need to be cleaned up and fixed.



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