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    SubjectRe: [PATCH v4 5/5] mm: enable CONFIG_MOVABLE_NODE on non-x86 arches
    Date
    Reza Arbab <arbab@linux.vnet.ibm.com> writes:

    > To support movable memory nodes (CONFIG_MOVABLE_NODE), at least one of
    > the following must be true:
    >
    > 1. We're on x86. This arch has the capability to identify movable nodes
    > at boot by parsing the ACPI SRAT, if the movable_node option is used.
    >
    > 2. Our config supports memory hotplug, which means that a movable node
    > can be created by hotplugging all of its memory into ZONE_MOVABLE.
    >
    > Fix the Kconfig definition of CONFIG_MOVABLE_NODE, which currently
    > recognizes (1), but not (2).
    >

    We now enable a lot of new code on different arch, such as the new node list
    N_MEMORY.

    Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>

    > Signed-off-by: Reza Arbab <arbab@linux.vnet.ibm.com>
    > ---
    > mm/Kconfig | 2 +-
    > 1 file changed, 1 insertion(+), 1 deletion(-)
    >
    > diff --git a/mm/Kconfig b/mm/Kconfig
    > index be0ee11..5d0818f 100644
    > --- a/mm/Kconfig
    > +++ b/mm/Kconfig
    > @@ -153,7 +153,7 @@ config MOVABLE_NODE
    > bool "Enable to assign a node which has only movable memory"
    > depends on HAVE_MEMBLOCK
    > depends on NO_BOOTMEM
    > - depends on X86_64
    > + depends on X86_64 || MEMORY_HOTPLUG
    > depends on NUMA
    > default n
    > help
    > --
    > 1.8.3.1

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