2 files changed, 13 insertions, 0 deletions

diff --git a/include/linux/kernel_stat.h b/include/linux/kernel_stat.h
index a77c6007dc99..348fa8874b52 100644
--- a/include/linux/kernel_stat.h
+++ b/include/linux/kernel_stat.h
@@ -5,6 +5,7 @@
 #include <linux/threads.h>
 #include <linux/percpu.h>
 #include <linux/cpumask.h>
+#include <linux/interrupt.h>
 #include <asm/irq.h>
 #include <asm/cputime.h>
 
@@ -31,6 +32,7 @@ struct kernel_stat {
 #ifndef CONFIG_GENERIC_HARDIRQS
        unsigned int irqs[NR_IRQS];
 #endif
+        unsigned int softirqs[NR_SOFTIRQS];
 };
 
 DECLARE_PER_CPU(struct kernel_stat, kstat);
@@ -67,6 +69,16 @@ extern unsigned int kstat_irqs_cpu(unsigned int irq, int cpu);
 
 #endif
 
+static inline void kstat_incr_softirqs_this_cpu(unsigned int irq)
+{
+        kstat_this_cpu.softirqs[irq]++;
+}
+
+static inline unsigned int kstat_softirqs_cpu(unsigned int irq, int cpu)
+{
+       return kstat_cpu(cpu).softirqs[irq];
+}
+
 /*
  * Number of interrupts per specific IRQ source, since bootup
  */
diff --git a/kernel/softirq.c b/kernel/softirq.c
index b41fb710e114..3a94905fa5d2 100644
--- a/kernel/softirq.c
+++ b/kernel/softirq.c
@@ -213,6 +213,7 @@ restart:
         do {
                 if (pending & 1) {
                         int prev_count = preempt_count();
+                        kstat_incr_softirqs_this_cpu(h - softirq_vec);
 
                         trace_softirq_entry(h, softirq_vec);
                         h->action(h);