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    Subject[PATCH] x86: Don't copy per_cpu cpuinfo for BSP two times

    smp_store_cpu_info(0) will do that.

    Signed-off-by: Yinghai Lu <yinghai@kernel.org>

    ---
    arch/x86/kernel/smpboot.c | 6 +++---
    1 file changed, 3 insertions(+), 3 deletions(-)

    Index: linux-2.6/arch/x86/kernel/smpboot.c
    ===================================================================
    --- linux-2.6.orig/arch/x86/kernel/smpboot.c
    +++ linux-2.6/arch/x86/kernel/smpboot.c
    @@ -1071,13 +1071,13 @@ void __init native_smp_prepare_cpus(unsi

    preempt_disable();
    smp_cpu_index_default();
    - memcpy(__this_cpu_ptr(&cpu_info), &boot_cpu_data, sizeof(cpu_info));
    - cpumask_copy(cpu_callin_mask, cpumask_of(0));
    - mb();
    +
    /*
    * Setup boot CPU information
    */
    smp_store_cpu_info(0); /* Final full version of the data */
    + cpumask_copy(cpu_callin_mask, cpumask_of(0));
    + mb();
    #ifdef CONFIG_X86_32
    boot_cpu_logical_apicid = logical_smp_processor_id();
    #endif

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