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    SubjectRE: [PATCH v10 09/10] mm: stop zeroing memory during allocation in vmemmap
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    From: Pavel Tatashin
    > Sent: 05 October 2017 22:11
    > vmemmap_alloc_block() will no longer zero the block, so zero memory
    > at its call sites for everything except struct pages. Struct page memory
    > is zero'd by struct page initialization.

    It seems dangerous to change an allocator to stop zeroing memory.
    It is probably saver to add a new function that doesn't zero
    the memory and use that is the places where you don't want it
    to be zeroed.

    David

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