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    Subject[patch 5/9] x86: use cpumask_of_cpu()
    Use cpumask_of_cpu() rather than the pair of cpus_clear() and cpu_set().

    Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
    ---
    arch/x86/kernel/cpu/mcheck/mce_amd_64.c | 4 ++--
    arch/x86/kernel/genapic_flat_64.c | 5 +----
    arch/x86/kernel/io_apic_64.c | 4 +---
    3 files changed, 4 insertions(+), 9 deletions(-)

    Index: 2.6-git/arch/x86/kernel/genapic_flat_64.c
    ===================================================================
    --- 2.6-git.orig/arch/x86/kernel/genapic_flat_64.c
    +++ 2.6-git/arch/x86/kernel/genapic_flat_64.c
    @@ -138,12 +138,9 @@ static cpumask_t physflat_target_cpus(vo

    static cpumask_t physflat_vector_allocation_domain(int cpu)
    {
    - cpumask_t domain = CPU_MASK_NONE;
    - cpu_set(cpu, domain);
    - return domain;
    + return cpumask_of_cpu(cpu);
    }

    -
    static void physflat_send_IPI_mask(cpumask_t cpumask, int vector)
    {
    send_IPI_mask_sequence(cpumask, vector);
    Index: 2.6-git/arch/x86/kernel/cpu/mcheck/mce_amd_64.c
    ===================================================================
    --- 2.6-git.orig/arch/x86/kernel/cpu/mcheck/mce_amd_64.c
    +++ 2.6-git/arch/x86/kernel/cpu/mcheck/mce_amd_64.c
    @@ -254,8 +254,8 @@ struct threshold_attr {
    static cpumask_t affinity_set(unsigned int cpu)
    {
    cpumask_t oldmask = current->cpus_allowed;
    - cpumask_t newmask = CPU_MASK_NONE;
    - cpu_set(cpu, newmask);
    + cpumask_t newmask = cpumask_of_cpu(cpu);
    +
    set_cpus_allowed(current, newmask);
    return oldmask;
    }
    Index: 2.6-git/arch/x86/kernel/io_apic_64.c
    ===================================================================
    --- 2.6-git.orig/arch/x86/kernel/io_apic_64.c
    +++ 2.6-git/arch/x86/kernel/io_apic_64.c
    @@ -1351,9 +1351,7 @@ static int ioapic_retrigger_irq(unsigned
    unsigned long flags;

    spin_lock_irqsave(&vector_lock, flags);
    - cpus_clear(mask);
    - cpu_set(first_cpu(cfg->domain), mask);
    -
    + mask = cpumask_of_cpu(first_cpu(cfg->domain));
    send_IPI_mask(mask, cfg->vector);
    spin_unlock_irqrestore(&vector_lock, flags);

    --


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