diff --git a/arch/x86/kernel/cpu/perf_counter.c b/arch/x86/kernel/cpu/perf_counter.c
index 3f3ae47..9ec51a6 100644
--- a/arch/x86/kernel/cpu/perf_counter.c
+++ b/arch/x86/kernel/cpu/perf_counter.c
@@ -29,9 +29,9 @@
 struct cpu_hw_counters {
 	struct perf_counter	*counters[X86_PMC_IDX_MAX];
 	unsigned long		used[BITS_TO_LONGS(X86_PMC_IDX_MAX)];
+	unsigned long		active[BITS_TO_LONGS(X86_PMC_IDX_MAX)];
 	unsigned long		interrupts;
 	u64			throttle_ctrl;
-	unsigned long		active_mask[BITS_TO_LONGS(X86_PMC_IDX_MAX)];
 	int			enabled;
 };
 
@@ -334,7 +334,7 @@
 	for (idx = 0; idx < x86_pmu.num_counters; idx++) {
 		u64 val;
 
-		if (!test_bit(idx, cpuc->active_mask))
+		if (!test_bit(idx, cpuc->active))
 			continue;
 		rdmsrl(MSR_K7_EVNTSEL0 + idx, val);
 		if (!(val & ARCH_PERFMON_EVENTSEL0_ENABLE))
@@ -376,7 +376,7 @@
 	for (idx = 0; idx < x86_pmu.num_counters; idx++) {
 		u64 val;
 
-		if (!test_bit(idx, cpuc->active_mask))
+		if (!test_bit(idx, cpuc->active))
 			continue;
 		rdmsrl(MSR_K7_EVNTSEL0 + idx, val);
 		if (val & ARCH_PERFMON_EVENTSEL0_ENABLE)
@@ -424,7 +424,7 @@
 {
 	struct cpu_hw_counters *cpuc = &__get_cpu_var(cpu_hw_counters);
 
-	set_bit(idx, cpuc->active_mask);
+	set_bit(idx, cpuc->active);
 	if (cpuc->enabled)
 		config |= ARCH_PERFMON_EVENTSEL0_ENABLE;
 
@@ -448,7 +448,7 @@
 {
 	struct cpu_hw_counters *cpuc = &__get_cpu_var(cpu_hw_counters);
 
-	clear_bit(idx, cpuc->active_mask);
+	clear_bit(idx, cpuc->active);
 	wrmsrl(MSR_K7_EVNTSEL0 + idx, config);
 
 }