Commit 3ca0a6ea authored by Zhen Lei's avatar Zhen Lei Committed by Paul E. McKenney
Browse files

sched: Add helper kstat_cpu_softirqs_sum() 



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: default avatarZhen Lei <thunder.leizhen@huawei.com>
Cc: Josh Don <joshdon@google.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Reviewed-by: default avatarFrederic Weisbecker <frederic@kernel.org>
Signed-off-by: default avatarPaul E. McKenney <paulmck@kernel.org>
parent 47904aed

include/linux/kernel_stat.h

+11 −0
Original line number Diff line number Diff line
@@ -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

 */