1 files changed, 3 insertions, 38 deletions

diff --git a/kernel/sched.c b/kernel/sched.c
index fc6fda881d2e..6c819f338b11 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -512,14 +512,6 @@ struct root_domain {
 #ifdef CONFIG_SMP
         struct cpupri cpupri;
 #endif
-#if defined(CONFIG_SCHED_MC) || defined(CONFIG_SCHED_SMT)
-        /*
-         * Preferred wake up cpu nominated by sched_mc balance that will be
-         * used when most cpus are idle in the system indicating overall very
-         * low system utilisation. Triggered at POWERSAVINGS_BALANCE_WAKEUP(2)
-         */
-        unsigned int sched_mc_preferred_wakeup_cpu;
-#endif
 };
 
 /*
@@ -2315,22 +2307,6 @@ static int try_to_wake_up(struct task_struct *p, unsigned int state, int sync)
         if (!sched_feat(SYNC_WAKEUPS))
                 sync = 0;
 
-#ifdef CONFIG_SMP
-        if (sched_feat(LB_WAKEUP_UPDATE) && !root_task_group_empty()) {
-                struct sched_domain *sd;
-
-                this_cpu = raw_smp_processor_id();
-                cpu = task_cpu(p);
-
-                for_each_domain(this_cpu, sd) {
-                        if (cpumask_test_cpu(cpu, sched_domain_span(sd))) {
-                                update_shares(sd);
-                                break;
-                        }
-                }
-        }
-#endif
-
         this_cpu = get_cpu();
 
         smp_wmb();
@@ -3533,11 +3509,6 @@ static inline int check_power_save_busiest_group(struct sd_lb_stats *sds,
         *imbalance = sds->min_load_per_task;
         sds->busiest = sds->group_min;
 
-        if (sched_mc_power_savings >= POWERSAVINGS_BALANCE_WAKEUP) {
-                cpu_rq(this_cpu)->rd->sched_mc_preferred_wakeup_cpu =
-                        group_first_cpu(sds->group_leader);
-        }
-
         return 1;
 
 }
@@ -7850,9 +7821,7 @@ static int sd_degenerate(struct sched_domain *sd)
         }
 
         /* Following flags don't use groups */
-        if (sd->flags & (SD_WAKE_IDLE |
-                         SD_WAKE_AFFINE |
-                         SD_WAKE_BALANCE))
+        if (sd->flags & (SD_WAKE_AFFINE))
                 return 0;
 
         return 1;
@@ -7869,10 +7838,6 @@ sd_parent_degenerate(struct sched_domain *sd, struct sched_domain *parent)
         if (!cpumask_equal(sched_domain_span(sd), sched_domain_span(parent)))
                 return 0;
 
-        /* Does parent contain flags not in child? */
-        /* WAKE_BALANCE is a subset of WAKE_AFFINE */
-        if (cflags & SD_WAKE_AFFINE)
-                pflags &= ~SD_WAKE_BALANCE;
         /* Flags needing groups don't count if only 1 group in parent */
         if (parent->groups == parent->groups->next) {
                 pflags &= ~(SD_LOAD_BALANCE |
@@ -8558,10 +8523,10 @@ static void set_domain_attribute(struct sched_domain *sd,
                 request = attr->relax_domain_level;
         if (request < sd->level) {
                 /* turn off idle balance on this domain */
-                sd->flags &= ~(SD_WAKE_IDLE|SD_BALANCE_NEWIDLE);
+                sd->flags &= ~(SD_BALANCE_WAKE|SD_BALANCE_NEWIDLE);
         } else {
                 /* turn on idle balance on this domain */
-                sd->flags |= (SD_WAKE_IDLE_FAR|SD_BALANCE_NEWIDLE);
+                sd->flags |= (SD_BALANCE_WAKE|SD_BALANCE_NEWIDLE);
         }
 }