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    r->n++;
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    r->n++;
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    spinlock_unlock(&r->lock);
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    spinlock_unlock(&r->lock);
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    atomic_inc(&nrdy);
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    atomic_inc(&nrdy);
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    avg = atomic_get(&nrdy) / config.cpu_active;
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    avg = atomic_get(&nrdy) / config.cpu_active;
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    spinlock_lock(&cpu->lock);
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    atomic_inc(&cpu->nrdy);
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    if ((++cpu->nrdy) > avg) {
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        /*
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         * If there are idle halted CPU's, this will wake them up.
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         */
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        ipi_broadcast(VECTOR_WAKEUP_IPI);
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    }  
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    spinlock_unlock(&cpu->lock);
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    interrupts_restore(ipl);
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    interrupts_restore(ipl);
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}
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}
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