mainline inclusion from mainline-v6.3-rc1 commit 3ca0a6ea8f6de0f21a9331ff3596a9c073fbdab0 category: feature bugzilla: https://gitee.com/openeuler/kernel/issues/I7OIXK
Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?i...
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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 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 1160e20995a0274..72b90b35e9e250a 100644 --- a/include/linux/kernel_stat.h +++ b/include/linux/kernel_stat.h @@ -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 */