From: Zhen Lei <thunder.leizhen@xxxxxxxxxx>
Add a kstat_cpu_softirqs_sum() function that is similar to
kstat_cpu_irqs_sum(), but which counts software interrupts since boot
on the specified CPU.
Signed-off-by: Zhen Lei <thunder.leizhen@xxxxxxxxxx>
Cc: Josh Don <joshdon@xxxxxxxxxx>
Cc: Tejun Heo <tj@xxxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Reviewed-by: Frederic Weisbecker <frederic@xxxxxxxxxx>
Signed-off-by: Paul E. McKenney <paulmck@xxxxxxxxxx>
---
include/linux/kernel_stat.h | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/include/linux/kernel_stat.h b/include/linux/kernel_stat.h
index 90e2fdc17d79f..898076e173a92 100644
--- a/include/linux/kernel_stat.h
+++ b/include/linux/kernel_stat.h
@@ -67,6 +67,17 @@ static inline unsigned int kstat_softirqs_cpu(unsigned int irq, int cpu)
return kstat_cpu(cpu).softirqs[irq];
}
+static inline unsigned int kstat_cpu_softirqs_sum(int cpu)
+{
+ int i;
+ unsigned int sum = 0;
+
+ for (i = 0; i < NR_SOFTIRQS; i++)
+ sum += kstat_softirqs_cpu(i, cpu);
+
+ return sum;
+}
+
/*
* Number of interrupts per specific IRQ source, since bootup
*/
--
2.31.1.189.g2e36527f23
