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    Subject[PATCH 1/4] hexagon/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/hexagon/kernel/smp.c | 5 +++++
    1 files changed, 5 insertions(+), 0 deletions(-)

    diff --git a/arch/hexagon/kernel/smp.c b/arch/hexagon/kernel/smp.c
    index 0123c63..71ad6e9 100644
    --- a/arch/hexagon/kernel/smp.c
    +++ b/arch/hexagon/kernel/smp.c
    @@ -178,7 +178,12 @@ void __cpuinit start_secondary(void)

    printk(KERN_INFO "%s cpu %d\n", __func__, current_thread_info()->cpu);

    + notify_cpu_starting(cpu);
    +
    + ipi_call_lock();
    set_cpu_online(cpu, true);
    + ipi_call_unlock();
    +
    local_irq_enable();

    cpu_idle();


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