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    SubjectRe: [patch 4/21] fix ARCH_HAS_PREFETCH
    On Thu, 2002-08-15 at 02:28, H. Peter Anvin wrote:
    > True indeed as well, although we should still have a busy_wait(); macro
    > that can insert whatever hint instruction the architecture might or
    > might not have.

    We have one - its called cpu_relax()

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