@@ -17,7 +17,7 @@ typedef struct {
unsigned int __nmi_count;
unsigned long clock_tick; /* %tick's per second */
unsigned long __pad;
- unsigned int __pad1;
+ unsigned int irq0_irqs;
unsigned int __pad2;
/* Dcache line 2, rarely used */
@@ -92,7 +92,6 @@ static void die_nmi(const char *str, struct pt_regs *regs, int do_panic)
notrace __kprobes void perfctr_irq(int irq, struct pt_regs *regs)
{
unsigned int sum, touched = 0;
- int cpu = smp_processor_id();
clear_softint(1 << irq);
@@ -106,7 +105,7 @@ notrace __kprobes void perfctr_irq(int irq, struct pt_regs *regs)
else
pcr_ops->write(PCR_PIC_PRIV);
- sum = kstat_irqs_cpu(0, cpu);
+ sum = local_cpu_data().irq0_irqs;
if (__get_cpu_var(nmi_touch)) {
__get_cpu_var(nmi_touch) = 0;
touched = 1;
@@ -728,6 +728,7 @@ void timer_interrupt(int irq, struct pt_regs *regs)
irq_enter();
+ local_cpu_data().irq0_irqs++;
kstat_incr_irqs_this_cpu(0, irq_to_desc(0));
if (unlikely(!evt->event_handler)) {
This keeps us from having to use kstat_irqs_cpu() from the NMI handler, the former of which is a profiled function. Instead we use a currently empty slot in the cpu_data Signed-off-by: David S. Miller <davem@davemloft.net> --- arch/sparc/include/asm/cpudata_64.h | 2 +- arch/sparc/kernel/nmi.c | 3 +-- arch/sparc/kernel/time_64.c | 1 + 3 files changed, 3 insertions(+), 3 deletions(-)