1 files changed, 12 insertions, 2 deletions

diff --git a/arch/x86/xen/smp.c b/arch/x86/xen/smp.c
index 557b8e24706a..539d42530fc4 100644
--- a/arch/x86/xen/smp.c
+++ b/arch/x86/xen/smp.c
@@ -148,7 +148,12 @@ void __init xen_smp_prepare_boot_cpu(void)
 
         for (cpu = 0; cpu < NR_CPUS; cpu++) {
                 cpus_clear(cpu_sibling_map[cpu]);
-                cpus_clear(cpu_core_map[cpu]);
+                /*
+                 * cpu_core_map lives in a per cpu area that is cleared
+                 * when the per cpu array is allocated.
+                 *
+                 * cpus_clear(per_cpu(cpu_core_map, cpu));
+                 */
         }
 
         xen_setup_vcpu_info_placement();
@@ -160,7 +165,12 @@ void __init xen_smp_prepare_cpus(unsigned int max_cpus)
 
         for (cpu = 0; cpu < NR_CPUS; cpu++) {
                 cpus_clear(cpu_sibling_map[cpu]);
-                cpus_clear(cpu_core_map[cpu]);
+                /*
+                 * cpu_core_ map will be zeroed when the per
+                 * cpu area is allocated.
+                 *
+                 * cpus_clear(per_cpu(cpu_core_map, cpu));
+                 */
         }
 
         smp_store_cpu_info(0);