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    SubjectRe: [PATCH] cpuacct: add a branch prediction
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    On Thu, 2009-02-26 at 19:28 +0900, KAMEZAWA Hiroyuki wrote:

    > Taking hierarchy mutex while reading will make read-side stable.

    We're talking about scheduling here, taking a mutex to stop scheduling
    won't work, nor will it be acceptible to use anything that will.





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