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sched: Switch to use hrtimer_setup() 

hrtimer_setup() takes the callback function pointer as argument and
initializes the timer completely.

Replace hrtimer_init() and the open coded initialization of
hrtimer::function with the new setup mechanism.

Signed-off-by: Nam Cao <namcao@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/all/a55e849cba3c41b4c5708be6ea6be6f337d1a8fb.1738746821.git.namcao@linutronix.de
This commit is contained in:
Nam Cao 2025-02-05 11:38:57 +01:00 committed by Thomas Gleixner
parent 99fb79f6d6
commit ee13da875b
4 changed files with 9 additions and 13 deletions
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3
kernel/sched/core.c
View File

@ -916,8 +916,7 @@ static void hrtick_rq_init(struct rq *rq)
#ifdef CONFIG_SMP
INIT_CSD(&rq->hrtick_csd, __hrtick_start, rq);
#endif
hrtimer_init(&rq->hrtick_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL_HARD);
rq->hrtick_timer.function = hrtick;
hrtimer_setup(&rq->hrtick_timer, hrtick, CLOCK_MONOTONIC, HRTIMER_MODE_REL_HARD);
}
#else /* CONFIG_SCHED_HRTICK */
static inline void hrtick_clear(struct rq *rq)

6
kernel/sched/deadline.c
View File

@ -1382,8 +1382,7 @@ static void init_dl_task_timer(struct sched_dl_entity *dl_se)
{
struct hrtimer *timer = &dl_se->dl_timer;
hrtimer_init(timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL_HARD);
timer->function = dl_task_timer;
hrtimer_setup(timer, dl_task_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL_HARD);
}
/*
@ -1839,8 +1838,7 @@ static void init_dl_inactive_task_timer(struct sched_dl_entity *dl_se)
{
struct hrtimer *timer = &dl_se->inactive_timer;
hrtimer_init(timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL_HARD);
timer->function = inactive_task_timer;
hrtimer_setup(timer, inactive_task_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL_HARD);
}
#define __node_2_dle(node) \

8
kernel/sched/fair.c
View File

@ -6539,14 +6539,14 @@ void init_cfs_bandwidth(struct cfs_bandwidth *cfs_b, struct cfs_bandwidth *paren
cfs_b->hierarchical_quota = parent ? parent->hierarchical_quota : RUNTIME_INF;
INIT_LIST_HEAD(&cfs_b->throttled_cfs_rq);
hrtimer_init(&cfs_b->period_timer, CLOCK_MONOTONIC, HRTIMER_MODE_ABS_PINNED);
cfs_b->period_timer.function = sched_cfs_period_timer;
hrtimer_setup(&cfs_b->period_timer, sched_cfs_period_timer, CLOCK_MONOTONIC,
HRTIMER_MODE_ABS_PINNED);
/* Add a random offset so that timers interleave */
hrtimer_set_expires(&cfs_b->period_timer,
get_random_u32_below(cfs_b->period));
hrtimer_init(&cfs_b->slack_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
cfs_b->slack_timer.function = sched_cfs_slack_timer;
hrtimer_setup(&cfs_b->slack_timer, sched_cfs_slack_timer, CLOCK_MONOTONIC,
HRTIMER_MODE_REL);
cfs_b->slack_started = false;
}

5
kernel/sched/rt.c
View File

@ -127,9 +127,8 @@ void init_rt_bandwidth(struct rt_bandwidth *rt_b, u64 period, u64 runtime)
raw_spin_lock_init(&rt_b->rt_runtime_lock);
hrtimer_init(&rt_b->rt_period_timer, CLOCK_MONOTONIC,
HRTIMER_MODE_REL_HARD);
rt_b->rt_period_timer.function = sched_rt_period_timer;
hrtimer_setup(&rt_b->rt_period_timer, sched_rt_period_timer, CLOCK_MONOTONIC,
HRTIMER_MODE_REL_HARD);
}
static inline void do_start_rt_bandwidth(struct rt_bandwidth *rt_b)