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    SubjectRe: [PATCH] Staircase Scheduler v6.3 for 2.6.7-rc2
    On Mon, Jun 07, 2004 at 06:57:38AM -0700, William Lee Irwin III wrote:
    > JIFFIES_TO_NS() is unused.

    array->nr_active only ever modified, never examined.


    Index: kolivas-2.6.7-rc2/kernel/sched.c
    ===================================================================
    --- kolivas-2.6.7-rc2.orig/kernel/sched.c 2004-06-07 06:53:26.779390000 -0700
    +++ kolivas-2.6.7-rc2/kernel/sched.c 2004-06-07 07:03:00.910109000 -0700
    @@ -92,7 +92,6 @@
    typedef struct runqueue runqueue_t;

    struct prio_array {
    - unsigned int nr_active;
    unsigned long bitmap[BITMAP_SIZE];
    struct list_head queue[MAX_PRIO + 1];
    };
    @@ -204,7 +203,6 @@
    static void dequeue_task(struct task_struct *p, runqueue_t *rq)
    {
    prio_array_t* array = &rq->array;
    - array->nr_active--;
    list_del(&p->run_list);
    if (list_empty(array->queue + p->prio))
    __clear_bit(p->prio, array->bitmap);
    @@ -215,7 +213,6 @@
    prio_array_t* array = &rq->array;
    list_add_tail(&p->run_list, array->queue + p->prio);
    __set_bit(p->prio, array->bitmap);
    - array->nr_active++;
    p->array = array;
    }

    @@ -229,7 +226,6 @@
    prio_array_t* array = &rq->array;
    list_add(&p->run_list, array->queue + p->prio);
    __set_bit(p->prio, array->bitmap);
    - array->nr_active++;
    p->array = array;
    }

    @@ -1095,7 +1091,6 @@
    p->prio = current->prio;
    list_add_tail(&p->run_list, &current->run_list);
    p->array = current->array;
    - p->array->nr_active++;
    rq->nr_running++;
    }
    } else {
    -
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