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-rw-r--r--kernel/sched.c8
1 files changed, 8 insertions, 0 deletions
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

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