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    Subject[PATCH RFC V7 4/12] xen: defer spinlock setup until boot CPU setup
    From: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>

    There's no need to do it at very early init, and doing it there
    makes it impossible to use the jump_label machinery.

    Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
    Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
    Signed-off-by: Raghavendra K T <raghavendra.kt@linux.vnet.ibm.com>
    ---
    arch/x86/xen/smp.c | 2 +-
    1 files changed, 1 insertions(+), 1 deletions(-)
    diff --git a/arch/x86/xen/smp.c b/arch/x86/xen/smp.c
    index 5fac691..9ac931b 100644
    --- a/arch/x86/xen/smp.c
    +++ b/arch/x86/xen/smp.c
    @@ -207,6 +207,7 @@ static void __init xen_smp_prepare_boot_cpu(void)

    xen_filter_cpu_maps();
    xen_setup_vcpu_info_placement();
    + xen_init_spinlocks();
    }

    static void __init xen_smp_prepare_cpus(unsigned int max_cpus)
    @@ -536,7 +537,6 @@ void __init xen_smp_init(void)
    {
    smp_ops = xen_smp_ops;
    xen_fill_possible_map();
    - xen_init_spinlocks();
    }

    static void __init xen_hvm_smp_prepare_cpus(unsigned int max_cpus)


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