1 files changed, 23 insertions, 26 deletions

diff --git a/kernel/sched.c b/kernel/sched.c
index 054a6012de99..f8b8996228dd 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -544,6 +544,8 @@ struct rq {
         struct root_domain *rd;
         struct sched_domain *sd;
 
+        unsigned long cpu_power;
+
         unsigned char idle_at_tick;
         /* For active balancing */
         int post_schedule;
@@ -969,14 +971,6 @@ static struct rq *task_rq_lock(struct task_struct *p, unsigned long *flags)
         }
 }
 
-void task_rq_unlock_wait(struct task_struct *p)
-{
-        struct rq *rq = task_rq(p);
-
-        smp_mb(); /* spin-unlock-wait is not a full memory barrier */
-        raw_spin_unlock_wait(&rq->lock);
-}
-
 static void __task_rq_unlock(struct rq *rq)
         __releases(rq->lock)
 {
@@ -1507,24 +1501,9 @@ static unsigned long target_load(int cpu, int type)
         return max(rq->cpu_load[type-1], total);
 }
 
-static struct sched_group *group_of(int cpu)
-{
-        struct sched_domain *sd = rcu_dereference_sched(cpu_rq(cpu)->sd);
-
-        if (!sd)
-                return NULL;
-
-        return sd->groups;
-}
-
 static unsigned long power_of(int cpu)
 {
-        struct sched_group *group = group_of(cpu);
-
-        if (!group)
-                return SCHED_LOAD_SCALE;
-
-        return group->cpu_power;
+        return cpu_rq(cpu)->cpu_power;
 }
 
 static int task_hot(struct task_struct *p, u64 now, struct sched_domain *sd);
@@ -1862,8 +1841,8 @@ static void dec_nr_running(struct rq *rq)
 static void set_load_weight(struct task_struct *p)
 {
         if (task_has_rt_policy(p)) {
-                p->se.load.weight = prio_to_weight[0] * 2;
-                p->se.load.inv_weight = prio_to_wmult[0] >> 1;
+                p->se.load.weight = 0;
+                p->se.load.inv_weight = WMULT_CONST;
                 return;
         }
 
@@ -4062,6 +4041,23 @@ int __sched wait_for_completion_killable(struct completion *x)
 EXPORT_SYMBOL(wait_for_completion_killable);
 
 /**
+ * wait_for_completion_killable_timeout: - waits for completion of a task (w/(to,killable))
+ * @x:  holds the state of this particular completion
+ * @timeout:  timeout value in jiffies
+ *
+ * This waits for either a completion of a specific task to be
+ * signaled or for a specified timeout to expire. It can be
+ * interrupted by a kill signal. The timeout is in jiffies.
+ */
+unsigned long __sched
+wait_for_completion_killable_timeout(struct completion *x,
+                                     unsigned long timeout)
+{
+        return wait_for_common(x, timeout, TASK_KILLABLE);
+}
+EXPORT_SYMBOL(wait_for_completion_killable_timeout);
+
+/**
  *      try_wait_for_completion - try to decrement a completion without blocking
  *      @x:     completion structure
  *
@@ -7596,6 +7592,7 @@ void __init sched_init(void)
 #ifdef CONFIG_SMP
                 rq->sd = NULL;
                 rq->rd = NULL;
+                rq->cpu_power = SCHED_LOAD_SCALE;
                 rq->post_schedule = 0;
                 rq->active_balance = 0;
                 rq->next_balance = jiffies;