45 files changed, 913 insertions, 541 deletions

diff --git a/Documentation/sysctl/kernel.txt b/Documentation/sysctl/kernel.txt
index e1d28fbf7570..ec8be46bf48d 100644
--- a/Documentation/sysctl/kernel.txt
+++ b/Documentation/sysctl/kernel.txt
@@ -442,8 +442,7 @@ feature should be disabled. Otherwise, if the system overhead from the
 feature is too high then the rate the kernel samples for NUMA hinting
 faults may be controlled by the numa_balancing_scan_period_min_ms,
 numa_balancing_scan_delay_ms, numa_balancing_scan_period_max_ms,
-numa_balancing_scan_size_mb, numa_balancing_settle_count sysctls and
-numa_balancing_migrate_deferred.
+numa_balancing_scan_size_mb, and numa_balancing_settle_count sysctls.
 
 ==============================================================
 
@@ -484,13 +483,6 @@ rate for each task.
 numa_balancing_scan_size_mb is how many megabytes worth of pages are
 scanned for a given scan.
 
-numa_balancing_migrate_deferred is how many page migrations get skipped
-unconditionally, after a page migration is skipped because a page is shared
-with other tasks. This reduces page migration overhead, and determines
-how much stronger the "move task near its memory" policy scheduler becomes,
-versus the "move memory near its task" memory management policy, for workloads
-with shared memory.
-
 ==============================================================
 
 osrelease, ostype & version:
diff --git a/arch/arm/include/asm/topology.h b/arch/arm/include/asm/topology.h
index 58b8b84adcd2..2fe85fff5cca 100644
--- a/arch/arm/include/asm/topology.h
+++ b/arch/arm/include/asm/topology.h
@@ -20,9 +20,6 @@ extern struct cputopo_arm cpu_topology[NR_CPUS];
 #define topology_core_cpumask(cpu)      (&cpu_topology[cpu].core_sibling)
 #define topology_thread_cpumask(cpu)    (&cpu_topology[cpu].thread_sibling)
 
-#define mc_capable()    (cpu_topology[0].socket_id != -1)
-#define smt_capable()   (cpu_topology[0].thread_id != -1)
-
 void init_cpu_topology(void);
 void store_cpu_topology(unsigned int cpuid);
 const struct cpumask *cpu_coregroup_mask(int cpu);
diff --git a/arch/arm/kernel/process.c b/arch/arm/kernel/process.c
index 92f7b15dd221..adabeababeb0 100644
--- a/arch/arm/kernel/process.c
+++ b/arch/arm/kernel/process.c
@@ -30,7 +30,6 @@
 #include <linux/uaccess.h>
 #include <linux/random.h>
 #include <linux/hw_breakpoint.h>
-#include <linux/cpuidle.h>
 #include <linux/leds.h>
 #include <linux/reboot.h>
 
@@ -133,7 +132,11 @@ EXPORT_SYMBOL_GPL(arm_pm_restart);
 
 void (*arm_pm_idle)(void);
 
-static void default_idle(void)
+/*
+ * Called from the core idle loop.
+ */
+
+void arch_cpu_idle(void)
 {
         if (arm_pm_idle)
                 arm_pm_idle();
@@ -168,15 +171,6 @@ void arch_cpu_idle_dead(void)
 #endif
 
 /*
- * Called from the core idle loop.
- */
-void arch_cpu_idle(void)
-{
-        if (cpuidle_idle_call())
-                default_idle();
-}
-
-/*
  * Called by kexec, immediately prior to machine_kexec().
  *
  * This must completely disable all secondary CPUs; simply causing those CPUs
diff --git a/arch/arm64/kernel/process.c b/arch/arm64/kernel/process.c
index 1c0a9be2ffa8..9cce0098f4cd 100644
--- a/arch/arm64/kernel/process.c
+++ b/arch/arm64/kernel/process.c
@@ -33,7 +33,6 @@
 #include <linux/kallsyms.h>
 #include <linux/init.h>
 #include <linux/cpu.h>
-#include <linux/cpuidle.h>
 #include <linux/elfcore.h>
 #include <linux/pm.h>
 #include <linux/tick.h>
@@ -94,10 +93,8 @@ void arch_cpu_idle(void)
          * This should do all the clock switching and wait for interrupt
          * tricks
          */
-        if (cpuidle_idle_call()) {
-                cpu_do_idle();
-                local_irq_enable();
-        }
+        cpu_do_idle();
+        local_irq_enable();
 }
 
 #ifdef CONFIG_HOTPLUG_CPU
diff --git a/arch/ia64/include/asm/topology.h b/arch/ia64/include/asm/topology.h
index a2496e449b75..5cb55a1e606b 100644
--- a/arch/ia64/include/asm/topology.h
+++ b/arch/ia64/include/asm/topology.h
@@ -77,7 +77,6 @@ void build_cpu_to_node_map(void);
 #define topology_core_id(cpu)                   (cpu_data(cpu)->core_id)
 #define topology_core_cpumask(cpu)              (&cpu_core_map[cpu])
 #define topology_thread_cpumask(cpu)            (&per_cpu(cpu_sibling_map, cpu))
-#define smt_capable()                           (smp_num_siblings > 1)