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    Subject[PATCH 33/35] autonuma: add CONFIG_AUTONUMA and CONFIG_AUTONUMA_DEFAULT_ENABLED
    Date
    Add the config options to allow building the kernel with AutoNUMA.

    If CONFIG_AUTONUMA_DEFAULT_ENABLED is "=y", then
    /sys/kernel/mm/autonuma/enabled will be equal to 1, and AutoNUMA will
    be enabled automatically at boot.

    CONFIG_AUTONUMA currently depends on X86, because no other arch
    implements the pte/pmd_numa yet and selecting =y would result in a
    failed build, but this shall be relaxed in the future. Porting
    AutoNUMA to other archs should be pretty simple.

    Signed-off-by: Andrea Arcangeli <aarcange@redhat.com>
    ---
    mm/Kconfig | 13 +++++++++++++
    1 files changed, 13 insertions(+), 0 deletions(-)

    diff --git a/mm/Kconfig b/mm/Kconfig
    index e338407..cbfdb15 100644
    --- a/mm/Kconfig
    +++ b/mm/Kconfig
    @@ -207,6 +207,19 @@ config MIGRATION
    pages as migration can relocate pages to satisfy a huge page
    allocation instead of reclaiming.

    +config AUTONUMA
    + bool "Auto NUMA"
    + select MIGRATION
    + depends on NUMA && X86
    + help
    + Automatic NUMA CPU scheduling and memory migration.
    +
    +config AUTONUMA_DEFAULT_ENABLED
    + bool "Auto NUMA default enabled"
    + depends on AUTONUMA
    + help
    + Automatic NUMA CPU scheduling and memory migration enabled at boot.
    +
    config PHYS_ADDR_T_64BIT
    def_bool 64BIT || ARCH_PHYS_ADDR_T_64BIT


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