forked from luck/tmp_suning_uos_patched
sched: clean up this_rq use in kernel/sched_rt.c
"this_rq" is normally used to denote the RQ on the current cpu (i.e. "cpu_rq(this_cpu)"). So clean up the usage of this_rq to be more consistent with the rest of the code. Signed-off-by: Gregory Haskins <ghaskins@novell.com> Signed-off-by: Steven Rostedt <srostedt@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
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@ -328,21 +328,21 @@ static struct rq *find_lock_lowest_rq(struct task_struct *task,
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* running task can migrate over to a CPU that is running a task
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* of lesser priority.
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*/
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static int push_rt_task(struct rq *this_rq)
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static int push_rt_task(struct rq *rq)
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{
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struct task_struct *next_task;
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struct rq *lowest_rq;
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int ret = 0;
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int paranoid = RT_MAX_TRIES;
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assert_spin_locked(&this_rq->lock);
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assert_spin_locked(&rq->lock);
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next_task = pick_next_highest_task_rt(this_rq, -1);
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next_task = pick_next_highest_task_rt(rq, -1);
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if (!next_task)
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return 0;
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retry:
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if (unlikely(next_task == this_rq->curr)) {
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if (unlikely(next_task == rq->curr)) {
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WARN_ON(1);
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return 0;
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}
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@ -352,24 +352,24 @@ static int push_rt_task(struct rq *this_rq)
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* higher priority than current. If that's the case
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* just reschedule current.
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*/
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if (unlikely(next_task->prio < this_rq->curr->prio)) {
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resched_task(this_rq->curr);
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if (unlikely(next_task->prio < rq->curr->prio)) {
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resched_task(rq->curr);
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return 0;
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}
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/* We might release this_rq lock */
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/* We might release rq lock */
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get_task_struct(next_task);
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/* find_lock_lowest_rq locks the rq if found */
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lowest_rq = find_lock_lowest_rq(next_task, this_rq);
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lowest_rq = find_lock_lowest_rq(next_task, rq);
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if (!lowest_rq) {
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struct task_struct *task;
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/*
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* find lock_lowest_rq releases this_rq->lock
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* find lock_lowest_rq releases rq->lock
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* so it is possible that next_task has changed.
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* If it has, then try again.
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*/
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task = pick_next_highest_task_rt(this_rq, -1);
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task = pick_next_highest_task_rt(rq, -1);
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if (unlikely(task != next_task) && task && paranoid--) {
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put_task_struct(next_task);
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next_task = task;
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@ -380,7 +380,7 @@ static int push_rt_task(struct rq *this_rq)
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assert_spin_locked(&lowest_rq->lock);
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deactivate_task(this_rq, next_task, 0);
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deactivate_task(rq, next_task, 0);
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set_task_cpu(next_task, lowest_rq->cpu);
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activate_task(lowest_rq, next_task, 0);
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