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    Subject[PATCH 02/16] x86: enable MAXSMP
    Impact: activates new off-stack cpumask code on MAXSMP (non-default) x86 configs

    Set MAXSMP to enable CONFIG_CPUMASK_OFFSTACK which moves cpumask's off
    the stack (and in structs) when using cpumask_var_t.

    Signed-off-by: Mike Travis <travis@sgi.com>
    Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
    Acked-by: Ingo Molnar <mingo@elte.hy>
    ---
    arch/x86/Kconfig | 7 ++++---
    1 files changed, 4 insertions(+), 3 deletions(-)

    diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
    index 8acab5b..09638b1 100644
    --- a/arch/x86/Kconfig
    +++ b/arch/x86/Kconfig
    @@ -581,16 +581,17 @@ config IOMMU_HELPER

    config MAXSMP
    bool "Configure Maximum number of SMP Processors and NUMA Nodes"
    - depends on X86_64 && SMP && BROKEN
    + depends on X86_64 && SMP && DEBUG_KERNEL && EXPERIMENTAL
    + select CPUMASK_OFFSTACK
    default n
    help
    Configure maximum number of CPUS and NUMA Nodes for this architecture.
    If unsure, say N.

    config NR_CPUS
    - int "Maximum number of CPUs (2-512)" if !MAXSMP
    - range 2 512
    depends on SMP
    + int "Maximum number of CPUs" if SMP && !MAXSMP
    + range 2 512 if SMP && !MAXSMP
    default "4096" if MAXSMP
    default "32" if X86_NUMAQ || X86_SUMMIT || X86_BIGSMP || X86_ES7000
    default "8"
    --
    1.6.0
    --


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