x86, hotplug: During CPU0 online, enable x2apic, set_numa_node.

Previously these functions were not run on the BSP (CPU 0, the boot processor)
since the boot processor init would only be executed before this functionality
was initialized.

Signed-off-by: Fenghua Yu <fenghua.yu@intel.com>
Link: http://lkml.kernel.org/r/1352835171-3958-11-git-send-email-fenghua.yu@intel.com
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>

1 files changed, 2 insertions, 3 deletions

diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c
index 7505f7b13e71..ca165ac6793b 100644
--- a/arch/x86/kernel/cpu/common.c
+++ b/arch/x86/kernel/cpu/common.c
@@ -1237,7 +1237,7 @@ void __cpuinit cpu_init(void)
         oist = &per_cpu(orig_ist, cpu);
 
 #ifdef CONFIG_NUMA
-        if (cpu != 0 && this_cpu_read(numa_node) == 0 &&
+        if (this_cpu_read(numa_node) == 0 &&
             early_cpu_to_node(cpu) != NUMA_NO_NODE)
                 set_numa_node(early_cpu_to_node(cpu));
 #endif
@@ -1269,8 +1269,7 @@ void __cpuinit cpu_init(void)
         barrier();
 
         x86_configure_nx();
-        if (cpu != 0)
-                enable_x2apic();
+        enable_x2apic();
 
         /*
          * set up and load the per-CPU TSS