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    SubjectRe: [PATCH] kernel/futex.c: Uneeded memory barrier
    The patch looks fine to me.

    Felipe W Damasio wrote:
    > Kills an unneeded set_current_state after schedule_timeout, since it
    > already guarantees that the task will be TASK_RUNNING.
    > Also, when setting the state to TASK_RUNNING, isn't that memory
    > barrier unneeded? Patch removes this memory barrier too.

    If _all_ instances in the kernel of


    can be validly turned into


    it would be good to make the barrier in set_current_state() itself
    conditional on the state being state.

    -- Jamie
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