sched: remove duplicate code from sched_fair.c
pick_task_entity() duplicates existing code. This functionality can be
easily obtained using rb_last(). Avoid code duplication by using rb_last().
Signed-off-by: Balbir Singh <balbir@linux.vnet.ibm.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
diff --git a/kernel/sched_fair.c b/kernel/sched_fair.c
index 6c091d6..7abad50 100644
--- a/kernel/sched_fair.c
+++ b/kernel/sched_fair.c
@@ -202,16 +202,13 @@
static inline struct sched_entity *__pick_last_entity(struct cfs_rq *cfs_rq)
{
- struct rb_node **link = &cfs_rq->tasks_timeline.rb_node;
- struct sched_entity *se = NULL;
- struct rb_node *parent;
+ struct rb_node *last;
+ struct sched_entity *se;
- while (*link) {
- parent = *link;
- se = rb_entry(parent, struct sched_entity, run_node);
- link = &parent->rb_right;
- }
-
+ last = rb_last(&cfs_rq->tasks_timeline);
+ if (!last)
+ return NULL;
+ se = rb_entry(last, struct sched_entity, run_node);
return se;
}