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    SubjectRe: [RFC] [PATCH] more support for memory-less-node.
    Date

    > In my understanding, a "node" is a block of cpu, memory, devices.
    > and there could be cpu-only-node, memory-only-node, device-only-node...

    The trouble with this is that you'll need to harden large parts
    of code against these. Especially a NULL pgdat is something quite
    dangerous. You could make it a dummy empty pgdat, but just assigning it
    nearby seems easier.

    -Andi
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