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Diffstat (limited to 'arch/x86/kernel/smpboot.c')
-rw-r--r--arch/x86/kernel/smpboot.c15
1 files changed, 11 insertions, 4 deletions
diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c
index 31869bf5fab..6bd4d9b7387 100644
--- a/arch/x86/kernel/smpboot.c
+++ b/arch/x86/kernel/smpboot.c
@@ -496,7 +496,7 @@ void __cpuinit set_cpu_sibling_map(int cpu)
}
/* maps the cpu to the sched domain representing multi-core */
-cpumask_t cpu_coregroup_map(int cpu)
+const struct cpumask *cpu_coregroup_mask(int cpu)
{
struct cpuinfo_x86 *c = &cpu_data(cpu);
/*
@@ -504,9 +504,14 @@ cpumask_t cpu_coregroup_map(int cpu)
* And for power savings, we return cpu_core_map
*/
if (sched_mc_power_savings || sched_smt_power_savings)
- return per_cpu(cpu_core_map, cpu);
+ return &per_cpu(cpu_core_map, cpu);
else
- return c->llc_shared_map;
+ return &c->llc_shared_map;
+}
+
+cpumask_t cpu_coregroup_map(int cpu)
+{
+ return *cpu_coregroup_mask(cpu);
}
static void impress_friends(void)
@@ -1149,7 +1154,7 @@ static void __init smp_cpu_index_default(void)
for_each_possible_cpu(i) {
c = &cpu_data(i);
/* mark all to hotplug */
- c->cpu_index = NR_CPUS;
+ c->cpu_index = nr_cpu_ids;
}
}
@@ -1293,6 +1298,8 @@ __init void prefill_possible_map(void)
else
possible = setup_possible_cpus;
+ total_cpus = max_t(int, possible, num_processors + disabled_cpus);
+
if (possible > CONFIG_NR_CPUS) {
printk(KERN_WARNING
"%d Processors exceeds NR_CPUS limit of %d\n",