[PATCH 1/2] [V2 1/2]sched:add task_running_oncpu

[Wang Qing]

We have no interface whether the task is running,
so we need to add an interface and distinguish CONFIG_SMP.

Signed-off-by: Wang Qing <wangqing@xxxxxxxx>
---
 include/linux/sched.h | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/include/linux/sched.h b/include/linux/sched.h
index 4418f5c..13cc8f5 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1843,6 +1843,11 @@ static inline unsigned int task_cpu(const struct task_struct *p)
 
 extern void set_task_cpu(struct task_struct *p, unsigned int cpu);
 
+static inline int task_running_oncpu(const struct task_struct *p)
+{
+	return p->on_cpu;
+}
+
 #else
 
 static inline unsigned int task_cpu(const struct task_struct *p)
@@ -1854,6 +1859,11 @@ static inline void set_task_cpu(struct task_struct *p, unsigned int cpu)
 {
 }
 
+static inline int task_running_oncpu(const struct task_struct *p)
+{
+	return p == current;
+}
+
 #endif /* CONFIG_SMP */
 
 /*
-- 
2.7.4