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    SubjectRe: [PATCH] mm/spase: never partially remove memmap for early section
    On Tue, Jun 23, 2020 at 2:43 AM Wei Yang
    <richard.weiyang@linux.alibaba.com> wrote:
    >
    > For early sections, we assumes its memmap will never be partially
    > removed. But current behavior breaks this.

    Where do we assume that?

    The primary use case for this was mapping pmem that collides with
    System-RAM in the same 128MB section. That collision will certainly be
    depopulated on-demand depending on the state of the pmem device. So,
    I'm not understanding the problem or the benefit of this change.

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