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    Subject[PATCH 2/4] mn10300/CPU hotplug: Add missing call to notify_cpu_starting()
    Date
    The scheduler depends on receiving the CPU_STARTING notification, without
    which we end up into a lot of trouble. So add the missing call to
    notify_cpu_starting() in the bringup code.

    Signed-off-by: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com>
    ---

    arch/mn10300/kernel/smp.c | 8 ++++++--
    1 files changed, 6 insertions(+), 2 deletions(-)

    diff --git a/arch/mn10300/kernel/smp.c b/arch/mn10300/kernel/smp.c
    index 9242e9f..25ca7fe 100644
    --- a/arch/mn10300/kernel/smp.c
    +++ b/arch/mn10300/kernel/smp.c
    @@ -875,10 +875,14 @@ static void __init smp_online(void)

    cpu = smp_processor_id();

    - local_irq_enable();
    + notify_cpu_starting(cpu);

    + ipi_call_lock();
    set_cpu_online(cpu, true);
    - smp_wmb();
    + ipi_call_unlock();
    +
    + local_irq_enable();
    +
    }

    /**


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