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-rw-r--r--init/main.c5
-rw-r--r--kernel/sched.c8
-rw-r--r--lib/cpumask.c3
-rw-r--r--mm/page_alloc.c2
4 files changed, 9 insertions, 9 deletions
diff --git a/init/main.c b/init/main.c
index df982ff5d2b0..0e22f40487bb 100644
--- a/init/main.c
+++ b/init/main.c
@@ -384,11 +384,6 @@ static void __init setup_per_cpu_areas(void)
static void __init smp_init(void)
{
unsigned int cpu;
- unsigned highest = 0;
-
- for_each_cpu_mask(cpu, cpu_possible_map)
- highest = cpu;
- nr_cpu_ids = highest + 1;
/* FIXME: This should be done in userspace --RR */
for_each_present_cpu(cpu) {
diff --git a/kernel/sched.c b/kernel/sched.c
index 960d7c5fca39..0227f1625a75 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -5244,6 +5244,11 @@ int __init migration_init(void)
#endif
#ifdef CONFIG_SMP
+
+/* Number of possible processor ids */
+int nr_cpu_ids __read_mostly = NR_CPUS;
+EXPORT_SYMBOL(nr_cpu_ids);
+
#undef SCHED_DOMAIN_DEBUG
#ifdef SCHED_DOMAIN_DEBUG
static void sched_domain_debug(struct sched_domain *sd, int cpu)
@@ -6726,6 +6731,7 @@ int in_sched_functions(unsigned long addr)
void __init sched_init(void)
{
int i, j, k;
+ int highest_cpu = 0;
for_each_possible_cpu(i) {
struct prio_array *array;
@@ -6760,11 +6766,13 @@ void __init sched_init(void)
// delimiter for bitsearch
__set_bit(MAX_PRIO, array->bitmap);
}
+ highest_cpu = i;
}
set_load_weight(&init_task);
#ifdef CONFIG_SMP
+ nr_cpu_ids = highest_cpu + 1;
open_softirq(SCHED_SOFTIRQ, run_rebalance_domains, NULL);
#endif
diff --git a/lib/cpumask.c b/lib/cpumask.c
index 1ea2c184315d..bb4f76d3c3e7 100644
--- a/lib/cpumask.c
+++ b/lib/cpumask.c
@@ -15,9 +15,6 @@ int __next_cpu(int n, const cpumask_t *srcp)
}
EXPORT_SYMBOL(__next_cpu);
-int nr_cpu_ids;
-EXPORT_SYMBOL(nr_cpu_ids);
-
int __any_online_cpu(const cpumask_t *mask)
{
int cpu;
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 353ce9039a86..019ceda6a8b6 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -665,7 +665,7 @@ static int rmqueue_bulk(struct zone *zone, unsigned int order,
}
#if MAX_NUMNODES > 1
-int nr_node_ids __read_mostly;
+int nr_node_ids __read_mostly = MAX_NUMNODES;
EXPORT_SYMBOL(nr_node_ids);
/*

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