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    SubjectRe: [RFC] cpuset: add interface to isolated cpus
    On Fri, Oct 20, 2006 at 01:01:41PM -0700, Paul Jackson wrote:
    > Nick wrote:
    > > Or, another question, how does my patch hijack cpus_allowed? In
    > > what way does it change the semantics of cpus_allowed?
    >
    > It limits load balancing for tasks in cpusets containing
    > a superset of that cpusets cpus.
    >
    > There are always such cpusets - the top cpuset if no other.

    Its just a corner case issue that Nick didn't consider while doing a quick
    patch. Nick meant to partition the sched domain at the top
    exclusive cpuset and he probably missed the case where root cpuset is marked
    as exclusive.

    thanks,
    suresh
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