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    SubjectRe: [PATCH 7/7] uts namespaces: Implement CLONE_NEWUTS flag
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    "Serge E. Hallyn" <serue@us.ibm.com> writes:
    >
    > Ok. Then I maintain that the bitmap of changed namespaces seems
    > unnecessary.

    I didn't spell it out, but it's obviously to optimize cache footprint
    of clone(). I expect nsproxy to be eventually more than a cacheline
    and with a bitmap test you can avoid checking it all.

    -Andi
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