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hrtimers: Introduce hrtimer_setup_sleeper_on_stack()

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The hrtimer_init*() API is replaced by hrtimer_setup*() variants to
initialize the timer including the callback function at once.

hrtimer_init_sleeper_on_stack() does not need user to setup the callback
function separately, so a new variant would not be strictly necessary.

Nonetheless, to keep the naming convention consistent, introduce
hrtimer_setup_sleeper_on_stack(). hrtimer_init_on_stack() will be removed
once all users are converted.

Signed-off-by: Nam Cao <namcao@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/all/7b5e18e6dd0ace9eaa211201528cb9dc23752454.1730386209.git.namcao@linutronix.de
This commit is contained in:
Nam Cao 2024-10-31 16:14:22 +01:00 committed by Thomas Gleixner
parent 444cb7db4c
commit c9bd83abfe
2 changed files with 16 additions and 0 deletions
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2
include/linux/hrtimer.h
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@ -238,6 +238,8 @@ extern void hrtimer_setup_on_stack(struct hrtimer *timer,
extern void hrtimer_init_sleeper_on_stack(struct hrtimer_sleeper *sl,
clockid_t clock_id,
enum hrtimer_mode mode);
extern void hrtimer_setup_sleeper_on_stack(struct hrtimer_sleeper *sl, clockid_t clock_id,
enum hrtimer_mode mode);
#ifdef CONFIG_DEBUG_OBJECTS_TIMERS
extern void destroy_hrtimer_on_stack(struct hrtimer *timer);

14
kernel/time/hrtimer.c
View File

@ -2065,6 +2065,20 @@ void hrtimer_init_sleeper_on_stack(struct hrtimer_sleeper *sl,
}
EXPORT_SYMBOL_GPL(hrtimer_init_sleeper_on_stack);
/**
* hrtimer_setup_sleeper_on_stack - initialize a sleeper in stack memory
* @sl: sleeper to be initialized
* @clock_id: the clock to be used
* @mode: timer mode abs/rel
*/
void hrtimer_setup_sleeper_on_stack(struct hrtimer_sleeper *sl,
clockid_t clock_id, enum hrtimer_mode mode)
{
debug_init_on_stack(&sl->timer, clock_id, mode);
__hrtimer_init_sleeper(sl, clock_id, mode);
}
EXPORT_SYMBOL_GPL(hrtimer_setup_sleeper_on_stack);
int nanosleep_copyout(struct restart_block *restart, struct timespec64 *ts)
{
switch(restart->nanosleep.type) {