Commit 64faa32d authored by Zhen Lei's avatar Zhen Lei
Browse files

sched: Add helper kstat_cpu_softirqs_sum() 

mainline inclusion
from mainline-v6.3-rc1
commit 3ca0a6ea
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I7OIXK

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=3ca0a6ea8f6de0f21a9331ff3596a9c073fbdab0



--------------------------------

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>
Signed-off-by: default avatarZhen Lei <thunder.leizhen@huawei.com>
parent 15fb71ce

include/linux/kernel_stat.h

+11 −0
Original line number Diff line number Diff line
@@ -64,6 +64,17 @@ 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

 */