sched: eliminate rq_clock() use

eliminate rq_clock() use by changing it to:

   update_rq_clock(rq)
   now = rq->clock;

identity transformation - no change in behavior.

Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 6 insertions, 2 deletions

diff --git a/kernel/sched_fair.c b/kernel/sched_fair.c
index 923bed0b..969f08c 100644
--- a/kernel/sched_fair.c
+++ b/kernel/sched_fair.c
@@ -844,7 +844,8 @@ static void check_preempt_curr_fair(struct rq *rq, struct task_struct *p)
 	unsigned long gran;
 
 	if (unlikely(rt_prio(p->prio))) {
-		update_curr(cfs_rq, rq_clock(rq));
+		update_rq_clock(rq);
+		update_curr(cfs_rq, rq->clock);
 		resched_task(curr);
 		return;
 	}
@@ -1063,9 +1064,12 @@ static void set_curr_task_fair(struct rq *rq)
 {
 	struct task_struct *curr = rq->curr;
 	struct sched_entity *se = &curr->se;
-	u64 now = rq_clock(rq);
+	u64 now;
 	struct cfs_rq *cfs_rq;
 
+	update_rq_clock(rq);
+	now = rq->clock;
+
 	for_each_sched_entity(se) {
 		cfs_rq = cfs_rq_of(se);
 		set_next_entity(cfs_rq, se, now);