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Commit d278c484 authored by Mike Galbraith's avatar Mike Galbraith Committed by Ingo Molnar
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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: default avatarMike Galbraith <efault@gmx.de>
Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>

 arch/x86/kernel/cpu/perf_counter.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
parent 23a185ca

arch/x86/kernel/cpu/perf_counter.c

+1 −1
Original line number Diff line number Diff line
@@ -495,6 +495,7 @@ static void __smp_perf_counter_interrupt(struct pt_regs *regs, int nmi) 
		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 perf_counter_unthrottle(void) 
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);