Merge remote-tracking branches 'asoc/fix/intel', 'asoc/fix/topology' and 'asoc/fix...

[karo-tx-linux.git] / kernel / sched / rt.c

diff --git a/kernel/sched/rt.c b/kernel/sched/rt.c
index 88254be118b05686687ff717567f424509523b58..9f3e40226dec875c7b318b4a9e6a2c01a89604ac 100644 (file)
--- a/kernel/sched/rt.c
+++ b/kernel/sched/rt.c
@@ -9,6 +9,7 @@
 #include <linux/irq_work.h>
 
 int sched_rr_timeslice = RR_TIMESLICE;
+int sysctl_sched_rr_timeslice = (MSEC_PER_SEC / HZ) * RR_TIMESLICE;
 
 static int do_sched_rt_period_timer(struct rt_bandwidth *rt_b, int overrun);
 
@@ -334,7 +335,7 @@ static void inc_rt_migration(struct sched_rt_entity *rt_se, struct rt_rq *rt_rq)
        rt_rq = &rq_of_rt_rq(rt_rq)->rt;
 
        rt_rq->rt_nr_total++;
-       if (tsk_nr_cpus_allowed(p) > 1)
+       if (p->nr_cpus_allowed > 1)
                rt_rq->rt_nr_migratory++;
 
        update_rt_migration(rt_rq);
@@ -351,7 +352,7 @@ static void dec_rt_migration(struct sched_rt_entity *rt_se, struct rt_rq *rt_rq)
        rt_rq = &rq_of_rt_rq(rt_rq)->rt;
 
        rt_rq->rt_nr_total--;
-       if (tsk_nr_cpus_allowed(p) > 1)
+       if (p->nr_cpus_allowed > 1)
                rt_rq->rt_nr_migratory--;
 
        update_rt_migration(rt_rq);
@@ -1323,7 +1324,7 @@ enqueue_task_rt(struct rq *rq, struct task_struct *p, int flags)
 
        enqueue_rt_entity(rt_se, flags);
 
-       if (!task_current(rq, p) && tsk_nr_cpus_allowed(p) > 1)
+       if (!task_current(rq, p) && p->nr_cpus_allowed > 1)
                enqueue_pushable_task(rq, p);
 }
 
@@ -1412,7 +1413,7 @@ select_task_rq_rt(struct task_struct *p, int cpu, int sd_flag, int flags)
         * will have to sort it out.
         */
        if (curr && unlikely(rt_task(curr)) &&
-           (tsk_nr_cpus_allowed(curr) < 2 ||
+           (curr->nr_cpus_allowed < 2 ||
             curr->prio <= p->prio)) {
                int target = find_lowest_rq(p);
 
@@ -1436,7 +1437,7 @@ static void check_preempt_equal_prio(struct rq *rq, struct task_struct *p)
         * Current can't be migrated, useless to reschedule,
         * let's hope p can move out.
         */
-       if (tsk_nr_cpus_allowed(rq->curr) == 1 ||
+       if (rq->curr->nr_cpus_allowed == 1 ||
            !cpupri_find(&rq->rd->cpupri, rq->curr, NULL))
                return;
 
@@ -1444,7 +1445,7 @@ static void check_preempt_equal_prio(struct rq *rq, struct task_struct *p)
         * p is migratable, so let's not schedule it and
         * see if it is pushed or pulled somewhere else.
         */
-       if (tsk_nr_cpus_allowed(p) != 1
+       if (p->nr_cpus_allowed != 1
            && cpupri_find(&rq->rd->cpupri, p, NULL))
                return;
 
@@ -1578,7 +1579,7 @@ static void put_prev_task_rt(struct rq *rq, struct task_struct *p)
         * The previous task needs to be made eligible for pushing
         * if it is still active
         */
-       if (on_rt_rq(&p->rt) && tsk_nr_cpus_allowed(p) > 1)
+       if (on_rt_rq(&p->rt) && p->nr_cpus_allowed > 1)
                enqueue_pushable_task(rq, p);
 }
 
@@ -1590,7 +1591,7 @@ static void put_prev_task_rt(struct rq *rq, struct task_struct *p)
 static int pick_rt_task(struct rq *rq, struct task_struct *p, int cpu)
 {
        if (!task_running(rq, p) &&
-           cpumask_test_cpu(cpu, tsk_cpus_allowed(p)))
+           cpumask_test_cpu(cpu, &p->cpus_allowed))
                return 1;
        return 0;
 }
@@ -1628,7 +1629,7 @@ static int find_lowest_rq(struct task_struct *task)
        if (unlikely(!lowest_mask))
                return -1;
 
-       if (tsk_nr_cpus_allowed(task) == 1)
+       if (task->nr_cpus_allowed == 1)
                return -1; /* No other targets possible */
 
        if (!cpupri_find(&task_rq(task)->rd->cpupri, task, lowest_mask))
@@ -1725,8 +1726,7 @@ static struct rq *find_lock_lowest_rq(struct task_struct *task, struct rq *rq)
                         * Also make sure that it wasn't scheduled on its rq.
                         */
                        if (unlikely(task_rq(task) != rq ||
-                                    !cpumask_test_cpu(lowest_rq->cpu,
-                                                      tsk_cpus_allowed(task)) ||
+                                    !cpumask_test_cpu(lowest_rq->cpu, &task->cpus_allowed) ||
                                     task_running(rq, task) ||
                                     !rt_task(task) ||
                                     !task_on_rq_queued(task))) {
@@ -1761,7 +1761,7 @@ static struct task_struct *pick_next_pushable_task(struct rq *rq)
 
        BUG_ON(rq->cpu != task_cpu(p));
        BUG_ON(task_current(rq, p));
-       BUG_ON(tsk_nr_cpus_allowed(p) <= 1);
+       BUG_ON(p->nr_cpus_allowed <= 1);
 
        BUG_ON(!task_on_rq_queued(p));
        BUG_ON(!rt_task(p));
@@ -2121,9 +2121,9 @@ static void task_woken_rt(struct rq *rq, struct task_struct *p)
 {
        if (!task_running(rq, p) &&
            !test_tsk_need_resched(rq->curr) &&
-           tsk_nr_cpus_allowed(p) > 1 &&
+           p->nr_cpus_allowed > 1 &&
            (dl_task(rq->curr) || rt_task(rq->curr)) &&
-           (tsk_nr_cpus_allowed(rq->curr) < 2 ||
+           (rq->curr->nr_cpus_allowed < 2 ||
             rq->curr->prio <= p->prio))
                push_rt_tasks(rq);
 }
@@ -2196,12 +2196,11 @@ static void switched_to_rt(struct rq *rq, struct task_struct *p)
         */
        if (task_on_rq_queued(p) && rq->curr != p) {
 #ifdef CONFIG_SMP
-               if (tsk_nr_cpus_allowed(p) > 1 && rq->rt.overloaded)
+               if (p->nr_cpus_allowed > 1 && rq->rt.overloaded)
                        queue_push_tasks(rq);
-#else
+#endif /* CONFIG_SMP */
                if (p->prio < rq->curr->prio)
                        resched_curr(rq);
-#endif /* CONFIG_SMP */
        }
 }
 
@@ -2246,6 +2245,7 @@ prio_changed_rt(struct rq *rq, struct task_struct *p, int oldprio)
        }
 }
 
+#ifdef CONFIG_POSIX_TIMERS
 static void watchdog(struct rq *rq, struct task_struct *p)
 {
        unsigned long soft, hard;
@@ -2267,6 +2267,9 @@ static void watchdog(struct rq *rq, struct task_struct *p)
                        p->cputime_expires.sched_exp = p->se.sum_exec_runtime;
        }
 }
+#else
+static inline void watchdog(struct rq *rq, struct task_struct *p) { }
+#endif
 
 static void task_tick_rt(struct rq *rq, struct task_struct *p, int queued)
 {