Messages in this thread | | | Date | Wed, 5 Oct 2011 21:25:14 +0200 (CEST) | From | Thomas Gleixner <> | Subject | Re: [PATCH 8/8] kernel/cpu.c: Define bsp_hotpluggable variable |
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On Wed, 5 Oct 2011, Fenghua Yu wrote:
> From: Fenghua Yu <fenghua.yu@intel.com> > > 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 business.
If there is a real reason that this is desireable, then ALL cpu0 assumptions in arch/x86 need to be cleaned up and fixed.
Thanks,
tglx
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