linux-kernel - [PATCH] x86/perf_count: make perf_count

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Message-ID: <4A47DAD6.9080200@kernel.org>
Date:	Sun, 28 Jun 2009 14:04:22 -0700
From:	Yinghai Lu <yinghai@...nel.org>
To:	Ingo Molnar <mingo@...e.hu>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>
CC:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: [PATCH] x86/perf_count: make perf_count_mask to local


only used in init_hw_per_counters

[Impact: cleanup]

Signed-off-by: Yinghai Lu <yinghai@...nel.org>
---
 arch/x86/kernel/cpu/perf_counter.c |    3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

Index: linux-2.6/arch/x86/kernel/cpu/perf_counter.c
===================================================================
--- linux-2.6.orig/arch/x86/kernel/cpu/perf_counter.c
+++ linux-2.6/arch/x86/kernel/cpu/perf_counter.c
@@ -25,8 +25,6 @@
 #include <asm/stacktrace.h>
 #include <asm/nmi.h>
 
-static u64 perf_counter_mask __read_mostly;
-
 struct cpu_hw_counters {
 	struct perf_counter	*counters[X86_PMC_IDX_MAX];
 	unsigned long		used_mask[BITS_TO_LONGS(X86_PMC_IDX_MAX)];
@@ -1474,6 +1472,7 @@ static int amd_pmu_init(void)
 
 void __init init_hw_perf_counters(void)
 {
+	u64 perf_counter_mask;
 	int err;
 
 	pr_info("Performance Counters: ");
--
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