Messages in this thread Patch in this message | ![/](/images/icornerl.gif) | | From | "Paul E. McKenney" <> | Subject | [PATCH rcu 2/6] sched: Add helper kstat_cpu_softirqs_sum() | Date | Wed, 4 Jan 2023 16:51:22 -0800 |
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From: Zhen Lei <thunder.leizhen@huawei.com>
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@huawei.com> Cc: Josh Don <joshdon@google.com> Cc: Tejun Heo <tj@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Reviewed-by: Frederic Weisbecker <frederic@kernel.org> Signed-off-by: Paul E. McKenney <paulmck@kernel.org> --- 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
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