perf_counters: account NMI interrupts
I noticed that kerneltop interrupts were accounted as NMI, but not their
perf counter origin.
Account NMI performance counter interrupts.
Signed-off-by: Mike Galbraith <efault@gmx.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
arch/x86/kernel/cpu/perf_counter.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/x86/kernel/cpu/perf_counter.c b/arch/x86/kernel/cpu/perf_counter.c
index 8bb2133..9901e46 100644
--- a/arch/x86/kernel/cpu/perf_counter.c
+++ b/arch/x86/kernel/cpu/perf_counter.c
@@ -495,6 +495,7 @@
goto out;
again:
+ inc_irq_stat(apic_perf_irqs);
ack = status;
for_each_bit(bit, (unsigned long *)&status, X86_PMC_IDX_MAX) {
struct perf_counter *counter = cpuc->counters[bit];
@@ -570,7 +571,6 @@
void smp_perf_counter_interrupt(struct pt_regs *regs)
{
irq_enter();
- inc_irq_stat(apic_perf_irqs);
apic_write(APIC_LVTPC, LOCAL_PERF_VECTOR);
__smp_perf_counter_interrupt(regs, 0);