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    SubjectRe: [PATCH RFC V2 3/5] jump_label: if a key has already been initialized, don't nop it out
    On 10/06/2011 11:10 AM, Jason Baron wrote:
    > It would be cool if we could make the total width 2-bytes, when
    > possible. It might be possible by making the initial 'JUMP_LABEL_INITIAL_NOP'
    > as a 'jmp' to the 'l_yes' label. And then patching that with a no-op at boot
    > time or link time - letting the compiler pick the width. In that way we could
    > get the optimal width...

    Yes, that would be a win just based on icache footprint alone.


    H. Peter Anvin, Intel Open Source Technology Center
    I work for Intel. I don't speak on their behalf.

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