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