[PATCH v9 09/12] x86, hotplug: During CPU0 online, enable x2apic, set_numa_node.

From: Fenghua Yu
Date: Fri Oct 12 2012 - 12:51:50 EST


From: Fenghua Yu <fenghua.yu@xxxxxxxxx>

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@xxxxxxxxx>
---
arch/x86/kernel/cpu/common.c | 5 ++---
1 files changed, 2 insertions(+), 3 deletions(-)

diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c
index 7505f7b..ca165ac 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
--
1.7.2

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