x86: Convert cpu_core_map to be a per cpu variable

[linux-2.6-omap-h63xx.git] / arch / x86 / xen / smp.c

diff --git a/arch/x86/xen/smp.c b/arch/x86/xen/smp.c
index 557b8e24706a94e3511b9a802f333dbb5a2f573f..539d42530fc49ebcdc9170d2abc99ea433e647f8 100644 (file)
--- 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);