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-rw-r--r--include/linux/sched.h1
-rw-r--r--kernel/sched.c15
-rw-r--r--kernel/timer.c2
3 files changed, 17 insertions, 1 deletions
diff --git a/include/linux/sched.h b/include/linux/sched.h
index d04186d8cc6..ab84adf5bb9 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -100,6 +100,7 @@ DECLARE_PER_CPU(unsigned long, process_counts);
extern int nr_processes(void);
extern unsigned long nr_running(void);
extern unsigned long nr_uninterruptible(void);
+extern unsigned long nr_active(void);
extern unsigned long nr_iowait(void);
#include <linux/time.h>
diff --git a/kernel/sched.c b/kernel/sched.c
index a9ecac398bb..6e52e0adff8 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -1658,6 +1658,21 @@ unsigned long nr_iowait(void)
return sum;
}
+unsigned long nr_active(void)
+{
+ unsigned long i, running = 0, uninterruptible = 0;
+
+ for_each_online_cpu(i) {
+ running += cpu_rq(i)->nr_running;
+ uninterruptible += cpu_rq(i)->nr_uninterruptible;
+ }
+
+ if (unlikely((long)uninterruptible < 0))
+ uninterruptible = 0;
+
+ return running + uninterruptible;
+}
+
#ifdef CONFIG_SMP
/*
diff --git a/kernel/timer.c b/kernel/timer.c
index 9062a82ee8e..6b812c04737 100644
--- a/kernel/timer.c
+++ b/kernel/timer.c
@@ -825,7 +825,7 @@ void update_process_times(int user_tick)
*/
static unsigned long count_active_tasks(void)
{
- return (nr_running() + nr_uninterruptible()) * FIXED_1;
+ return nr_active() * FIXED_1;
}
/*