update_stats_curr_start() is used to update the exec_start when we are starting a new run period, which is used by all sched class. So we'd better define it as a common helper.
Signed-off-by: Yafang Shao <[email protected]> --- kernel/sched/fair.c | 14 +------------- kernel/sched/rt.c | 2 +- kernel/sched/sched.h | 12 ++++++++++++ 3 files changed, 14 insertions(+), 14 deletions(-) diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c index 946b60f586e4..13e803369ced 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -915,18 +915,6 @@ update_stats_dequeue(struct cfs_rq *cfs_rq, struct sched_entity *se, int flags) } } -/* - * We are picking a new current task - update its stats: - */ -static inline void -update_stats_curr_start(struct cfs_rq *cfs_rq, struct sched_entity *se) -{ - /* - * We are starting a new run period: - */ - se->exec_start = rq_clock_task(rq_of(cfs_rq)); -} - /************************************************** * Scheduling class queueing methods: */ @@ -4255,7 +4243,7 @@ set_next_entity(struct cfs_rq *cfs_rq, struct sched_entity *se) update_load_avg(cfs_rq, se, UPDATE_TG); } - update_stats_curr_start(cfs_rq, se); + update_stats_curr_start(rq_of(cfs_rq), se); cfs_rq->curr = se; /* diff --git a/kernel/sched/rt.c b/kernel/sched/rt.c index af772ac0f32d..3422dd85cfb4 100644 --- a/kernel/sched/rt.c +++ b/kernel/sched/rt.c @@ -1574,7 +1574,7 @@ static void check_preempt_curr_rt(struct rq *rq, struct task_struct *p, int flag static inline void set_next_task_rt(struct rq *rq, struct task_struct *p, bool first) { - p->se.exec_start = rq_clock_task(rq); + update_stats_curr_start(rq, &p->se); /* The running task is never eligible for pushing */ dequeue_pushable_task(rq, p); diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h index 9a4576ccf3d7..3948112dc31c 100644 --- a/kernel/sched/sched.h +++ b/kernel/sched/sched.h @@ -2644,4 +2644,16 @@ static inline struct task_struct *task_of(struct sched_entity *se) return container_of(se, struct task_struct, se); } +/* + * We are picking a new current task - update its stats: + */ +static inline void +update_stats_curr_start(struct rq *rq, struct sched_entity *se) +{ + /* + * We are starting a new run period: + */ + se->exec_start = rq_clock_task(rq); +} + #endif /* _KERNEL_SCHED_SCHED_H */ -- 2.18.4
