1 files changed, 13 insertions, 11 deletions

diff --git a/kernel/sched.c b/kernel/sched.c
index 3ee2ae45125f..bc38804e40dd 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -4031,7 +4031,7 @@ long sched_getaffinity(pid_t pid, cpumask_t *mask)
                 goto out_unlock;
 
         retval = 0;
-        cpus_and(*mask, p->cpus_allowed, cpu_possible_map);
+        cpus_and(*mask, p->cpus_allowed, cpu_online_map);
 
 out_unlock:
         read_unlock(&tasklist_lock);
@@ -5141,7 +5141,7 @@ static void init_sched_build_groups(struct sched_group groups[], cpumask_t span,
 #define SEARCH_SCOPE            2
 #define MIN_CACHE_SIZE          (64*1024U)
 #define DEFAULT_CACHE_SIZE      (5*1024*1024U)
-#define ITERATIONS              2
+#define ITERATIONS              1
 #define SIZE_THRESH             130
 #define COST_THRESH             130
 
@@ -5480,9 +5480,9 @@ static unsigned long long measure_migration_cost(int cpu1, int cpu2)
                                 break;
                         }
                 /*
-                 * Increase the cachesize in 5% steps:
+                 * Increase the cachesize in 10% steps:
                  */
-                size = size * 20 / 19;
+                size = size * 10 / 9;
         }
 
         if (migration_debug)
@@ -5551,13 +5551,15 @@ static void calibrate_migration_costs(const cpumask_t *cpu_map)
                         -1
 #endif
                 );
-        printk("migration_cost=");
-        for (distance = 0; distance <= max_distance; distance++) {
-                if (distance)
-                        printk(",");
-                printk("%ld", (long)migration_cost[distance] / 1000);
+        if (system_state == SYSTEM_BOOTING) {
+                printk("migration_cost=");
+                for (distance = 0; distance <= max_distance; distance++) {
+                        if (distance)
+                                printk(",");
+                        printk("%ld", (long)migration_cost[distance] / 1000);
+                }
+                printk("\n");
         }
-        printk("\n");
         j1 = jiffies;
         if (migration_debug)
                 printk("migration: %ld seconds\n", (j1-j0)/HZ);
@@ -6109,7 +6111,7 @@ void __init sched_init(void)
         runqueue_t *rq;
         int i, j, k;
 
-        for (i = 0; i < NR_CPUS; i++) {
+        for_each_cpu(i) {
                 prio_array_t *array;
 
                 rq = cpu_rq(i);