From: Zhen Lei <thunder.leizhen@huawei.com>
To: "Paul E . McKenney" <paulmck@kernel.org>,
Frederic Weisbecker <frederic@kernel.org>,
Neeraj Upadhyay <quic_neeraju@quicinc.com>,
"Josh Triplett" <josh@joshtriplett.org>,
Steven Rostedt <rostedt@goodmis.org>,
Mathieu Desnoyers <mathieu.desnoyers@efficios.com>,
Lai Jiangshan <jiangshanlai@gmail.com>,
Joel Fernandes <joel@joelfernandes.org>, <rcu@vger.kernel.org>,
<linux-kernel@vger.kernel.org>
Cc: Zhen Lei <thunder.leizhen@huawei.com>
Subject: [PATCH 1/3] sched: Add helper kstat_cpu_softirqs_sum()
Date: Mon, 17 Oct 2022 18:01:06 +0800 [thread overview]
Message-ID: <20221017100108.2063-2-thunder.leizhen@huawei.com> (raw)
In-Reply-To: <20221017100108.2063-1-thunder.leizhen@huawei.com>
Similar to kstat_cpu_irqs_sum(), it counts the sum of all software
interrupts on a specified CPU.
Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>
---
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 ddb5a358fd829f4..61d427c1962bf1c 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
*/
--
2.25.1
next prev parent reply other threads:[~2022-10-17 10:02 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-10-17 10:01 [PATCH 0/3] rcu: Add RCU stall diagnosis information Zhen Lei
2022-10-17 10:01 ` Zhen Lei [this message]
2022-10-17 10:01 ` [PATCH 2/3] sched: Add helper nr_context_switches_cpu() Zhen Lei
2022-10-17 10:01 ` [PATCH 3/3] rcu: Add RCU stall diagnosis information Zhen Lei
2022-10-20 23:13 ` [PATCH 0/3] " Paul E. McKenney
2022-10-21 8:07 ` Leizhen (ThunderTown)
2022-10-21 19:15 ` Paul E. McKenney
2022-10-24 9:23 ` Leizhen (ThunderTown)
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