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    Subject[PATCH] setscheduler resched bug
    setscheduler is not forcing a reschedule when needed like set_user_nice
    does. It should.

    Joe


    --- 2.5.69/kernel/sched.c.orig 2003-05-21 14:50:53.000000000 -0400
    +++ 2.5.69/kernel/sched.c 2003-05-21 15:01:13.000000000 -0400
    @@ -1716,6 +1716,7 @@
    unsigned long flags;
    runqueue_t *rq;
    task_t *p;
    + int oldprio;

    if (!param || pid < 0)
    goto out_nounlock;
    @@ -1778,12 +1779,20 @@
    retval = 0;
    p->policy = policy;
    p->rt_priority = lp.sched_priority;
    + oldprio = p->prio;
    if (policy != SCHED_NORMAL)
    p->prio = MAX_USER_RT_PRIO-1 - p->rt_priority;
    else
    p->prio = p->static_prio;
    - if (array)
    + if (array) {
    __activate_task(p, task_rq(p));
    + /*
    + * Reschedule if on a CPU and the priority dropped, or not on
    + * a CPU and the priority rose above the currently running task.
    + */
    + if ((rq->curr == p) ? (p->prio > oldprio) : (p->prio < rq->curr->prio))
    + resched_task(rq->curr);
    + }

    out_unlock:
    task_rq_unlock(rq, &flags);
    -
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