4 files changed, 3 insertions, 35 deletions

diff --git a/include/linux/sched.h b/include/linux/sched.h
index b8c86648a2f9..f3eebc121ebc 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -860,7 +860,6 @@ enum cpu_idle_type {
 #define SD_BALANCE_FORK         0x0008  /* Balance on fork, clone */
 #define SD_BALANCE_WAKE         0x0010  /* Balance on wakeup */
 #define SD_WAKE_AFFINE          0x0020  /* Wake task to waking CPU */
-#define SD_PREFER_LOCAL         0x0040  /* Prefer to keep tasks local to this domain */
 #define SD_SHARE_CPUPOWER       0x0080  /* Domain members share cpu power */
 #define SD_SHARE_PKG_RESOURCES  0x0200  /* Domain members share cpu pkg resources */
 #define SD_SERIALIZE            0x0400  /* Only a single load balancing instance */
diff --git a/include/linux/topology.h b/include/linux/topology.h
index fec12d667211..d3cf0d6e7712 100644
--- a/include/linux/topology.h
+++ b/include/linux/topology.h
@@ -129,7 +129,6 @@ int arch_update_cpu_topology(void);
                                 | 1*SD_BALANCE_FORK                     \
                                 | 0*SD_BALANCE_WAKE                     \
                                 | 1*SD_WAKE_AFFINE                      \
-                                | 0*SD_PREFER_LOCAL                     \
                                 | 0*SD_SHARE_CPUPOWER                   \
                                 | 1*SD_SHARE_PKG_RESOURCES              \
                                 | 0*SD_SERIALIZE                        \
@@ -160,7 +159,6 @@ int arch_update_cpu_topology(void);
                                 | 1*SD_BALANCE_FORK                     \
                                 | 0*SD_BALANCE_WAKE                     \
                                 | 1*SD_WAKE_AFFINE                      \
-                                | 0*SD_PREFER_LOCAL                     \
                                 | 0*SD_SHARE_CPUPOWER                   \
                                 | 0*SD_SHARE_PKG_RESOURCES              \
                                 | 0*SD_SERIALIZE                        \
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index c9a3655e572d..4376c9f34790 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -6622,7 +6622,6 @@ sd_numa_init(struct sched_domain_topology_level *tl, int cpu)
                                         | 0*SD_BALANCE_FORK
                                         | 0*SD_BALANCE_WAKE
                                         | 0*SD_WAKE_AFFINE
-                                        | 0*SD_PREFER_LOCAL
                                         | 0*SD_SHARE_CPUPOWER
                                         | 0*SD_SHARE_PKG_RESOURCES
                                         | 1*SD_SERIALIZE
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 287bfaca6420..01d3eda6b7f9 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -2686,7 +2686,6 @@ select_task_rq_fair(struct task_struct *p, int sd_flag, int wake_flags)
         int prev_cpu = task_cpu(p);
         int new_cpu = cpu;
         int want_affine = 0;
-        int want_sd = 1;
         int sync = wake_flags & WF_SYNC;
 
         if (p->nr_cpus_allowed == 1)
@@ -2704,48 +2703,21 @@ select_task_rq_fair(struct task_struct *p, int sd_flag, int wake_flags)
                         continue;
 
                 /*
-                 * If power savings logic is enabled for a domain, see if we
-                 * are not overloaded, if so, don't balance wider.
-                 */
-                if (tmp->flags & (SD_PREFER_LOCAL)) {
-                        unsigned long power = 0;
-                        unsigned long nr_running = 0;
-                        unsigned long capacity;
-                        int i;
-
-                        for_each_cpu(i, sched_domain_span(tmp)) {
-                                power += power_of(i);
-                                nr_running += cpu_rq(i)->cfs.nr_running;
-                        }
-
-                        capacity = DIV_ROUND_CLOSEST(power, SCHED_POWER_SCALE);
-
-                        if (nr_running < capacity)
-                                want_sd = 0;
-                }
-
-                /*
                  * If both cpu and prev_cpu are part of this domain,
                  * cpu is a valid SD_WAKE_AFFINE target.
                  */
                 if (want_affine && (tmp->flags & SD_WAKE_AFFINE) &&
                     cpumask_test_cpu(prev_cpu, sched_domain_span(tmp))) {
                         affine_sd = tmp;
-                        want_affine = 0;
-                }
-
-                if (!want_sd && !want_affine)
                         break;
+                }
 
-                if (!(tmp->flags & sd_flag))
-                        continue;
-
-                if (want_sd)
+                if (tmp->flags & sd_flag)
                         sd = tmp;
         }
 
         if (affine_sd) {
-                if (cpu == prev_cpu || wake_affine(affine_sd, p, sync))
+                if (cpu != prev_cpu && wake_affine(affine_sd, p, sync))
                         prev_cpu = cpu;
 
                 new_cpu = select_idle_sibling(p, prev_cpu);