[PATCH 5/8] NR_CPUS: Replace per_cpu(..., smp_processor_id()) with __get_cpu_var

From: Mike Travis
Date: Fri Jul 18 2008 - 21:13:00 EST

* Slight optimization when getting one's own cpu_info percpu data.

Applies to both tip/master and linux-next.

Signed-off-by: Mike Travis <travis@xxxxxxx>
include/asm-x86/processor.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

--- linux-2.6.tip.orig/include/asm-x86/processor.h
+++ linux-2.6.tip/include/asm-x86/processor.h
@@ -135,7 +135,7 @@ extern __u32 cleared_cpu_caps[NCAPINTS
DECLARE_PER_CPU(struct cpuinfo_x86, cpu_info);
#define cpu_data(cpu) per_cpu(cpu_info, cpu)
-#define current_cpu_data cpu_data(smp_processor_id())
+#define current_cpu_data __get_cpu_var(cpu_info)
#define cpu_data(cpu) boot_cpu_data
#define current_cpu_data boot_cpu_data

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