[PATCH] uml: add debug switch for skas mode

[linux-2.6] / kernel / sched.c

diff --git a/kernel/sched.c b/kernel/sched.c
index 3ee2ae45125f711bd52eb8635cf335cc9b15ffe9..bc38804e40ddf72954695470ae50fb3a5c0b82a9 100644 (file)
--- 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);