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    SubjectRe: [patch,v2] bdi: add a user-tunable cpu_list for the bdi flusher threads
    On 2012-12-06 19:01, Tejun Heo wrote:
    > As for the original patch, I think it's a bit too much to expose to
    > userland. It's probably a good idea to bind the flusher to the local
    > node but do we really need to expose an interface to let userland
    > control the affinity directly? Do we actually have a use case at
    > hand?

    We need to expose it. Once the binding is set from the kernel side on a
    kernel thread, it can't be modified.

    Binding either for performance reasons or for ensuring that we
    explicitly don't run in some places is a very useful feature.

    --
    Jens Axboe



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