linux-kernel - [PATCH] sched/deadline: Replace rq_of_dl_rq(dl_rq_of_se(dl_se)) with ... ...task_rq(dl_task_of(dl

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Date:   Tue, 13 Oct 2020 22:31:40 +0800
From:   Qi Zheng <arch0.zheng@...il.com>
To:     mingo@...hat.com, peterz@...radead.org, juri.lelli@...hat.com,
        vincent.guittot@...aro.org, dietmar.eggemann@....com,
        rostedt@...dmis.org, bsegall@...gle.com, mgorman@...e.de,
        bristot@...hat.com
Cc:     linux-kernel@...r.kernel.org, Qi Zheng <arch0.zheng@...il.com>
Subject: [PATCH] sched/deadline: Replace rq_of_dl_rq(dl_rq_of_se(dl_se)) with ... ...task_rq(dl_task_of(dl_se))

The rq is already obtained in the dl_rq_of_se() function:
	struct task_struct *p = dl_task_of(dl_se);
        struct rq *rq = task_rq(p);
So there is no need to do extra conversion.

Signed-off-by: Qi Zheng <arch0.zheng@...il.com>
---
 kernel/sched/deadline.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/kernel/sched/deadline.c b/kernel/sched/deadline.c
index 6d93f4518734..f64e577f6aba 100644
--- a/kernel/sched/deadline.c
+++ b/kernel/sched/deadline.c
@@ -1152,7 +1152,7 @@ void init_dl_task_timer(struct sched_dl_entity *dl_se)
 static inline void dl_check_constrained_dl(struct sched_dl_entity *dl_se)
 {
 	struct task_struct *p = dl_task_of(dl_se);
-	struct rq *rq = rq_of_dl_rq(dl_rq_of_se(dl_se));
+	struct rq *rq = task_rq(p);
 
 	if (dl_time_before(dl_se->deadline, rq_clock(rq)) &&
 	    dl_time_before(rq_clock(rq), dl_next_period(dl_se))) {
@@ -1498,7 +1498,7 @@ enqueue_dl_entity(struct sched_dl_entity *dl_se,
 		replenish_dl_entity(dl_se, pi_se);
 	} else if ((flags & ENQUEUE_RESTORE) &&
 		  dl_time_before(dl_se->deadline,
-				 rq_clock(rq_of_dl_rq(dl_rq_of_se(dl_se))))) {
+				 rq_clock(task_rq(dl_task_of(dl_se))))) {
 		setup_new_dl_entity(dl_se);
 	}
 
-- 
2.25.1