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    SubjectRe: [PATCH] mm: don't invoke __alloc_pages_direct_compact when order 0
    On Sat, 7 Jul 2012, Joonsoo Kim wrote:

    > __alloc_pages_direct_compact has many arguments so invoking it is very costly.
    > And in almost invoking case, order is 0, so return immediately.
    >

    If "zero cost" is "very costly", then this might make sense.

    __alloc_pages_direct_compact() is inlined by gcc.


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