LOCAL / sched: Add nr_running_cpumask() to get the number of running tasks of per-cluster

This patch adds the nr_running_cpumask() function to get the number of runing
tasks of per-cluster.

Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>

1 files changed, 10 insertions, 0 deletions

diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 6240d0b7838c..6b28458eec3c 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -2403,6 +2403,16 @@ unsigned long nr_running(void)
 	return sum;
 }
 
+unsigned long nr_running_cpumask(cpumask_var_t cpus)
+{
+	unsigned long i, sum = 0;
+
+	for_each_cpu(i, cpus)
+		sum += cpu_rq(i)->nr_running;
+
+	return sum;
+}
+
 /*
  * Check if only the current task is running on the cpu.
  *