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    SubjectRe: [PATCH v3 3/5] cpusets: Update tasks' cpus_allowed mask upon updates to root cpuset
    On Mon, 14 May 2012, Srivatsa S. Bhat wrote:

    > The root cpuset's cpus_allowed mask can get updated during CPU hotplug.
    > However, during those updates, the tasks belonging to the root cpuset
    > aren't touched at all - their cpus_allowed masks aren't updated to reflect
    > the change in the configuration of the cpuset they belong to.
    > Fix this by moving the update of top_cpuset.cpus_allowed to
    > scan_cpusets_upon_hotplug() and ensure that the call to update_tasks_cpumask()
    > is not missed out for the root cpuset, including for cpu online events.
    > Signed-off-by: Srivatsa S. Bhat <>

    Acked-by: David Rientjes <>

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