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timers: Split out get next timer interrupt 

Split out get_next_timer_interrupt() to be able to extend it and make it
reusable for other call sites.

No functional change.

Signed-off-by: Anna-Maria Behnsen <anna-maria@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Frederic Weisbecker <frederic@kernel.org>
Link: https://lore.kernel.org/r/20240221090548.36600-3-anna-maria@linutronix.de
This commit is contained in:
Anna-Maria Behnsen 2024-02-21 10:05:30 +01:00 committed by Thomas Gleixner
parent bebed6649e
commit 39ed699fb6
1 changed files with 14 additions and 9 deletions
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23
kernel/time/timer.c
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@ -1956,15 +1956,7 @@ static u64 cmp_next_hrtimer_event(u64 basem, u64 expires)
return DIV_ROUND_UP_ULL(nextevt, TICK_NSEC) * TICK_NSEC;
}
/**
* get_next_timer_interrupt - return the time (clock mono) of the next timer
* @basej: base time jiffies
* @basem: base time clock monotonic
*
* Returns the tick aligned clock monotonic time of the next pending
* timer or KTIME_MAX if no timer is pending.
*/
u64 get_next_timer_interrupt(unsigned long basej, u64 basem)
static inline u64 __get_next_timer_interrupt(unsigned long basej, u64 basem)
{
struct timer_base *base = this_cpu_ptr(&timer_bases[BASE_STD]);
unsigned long nextevt = basej + NEXT_TIMER_MAX_DELTA;
@ -2023,6 +2015,19 @@ u64 get_next_timer_interrupt(unsigned long basej, u64 basem)
return cmp_next_hrtimer_event(basem, expires);
}
/**
* get_next_timer_interrupt() - return the time (clock mono) of the next timer
* @basej: base time jiffies
* @basem: base time clock monotonic
*
* Returns the tick aligned clock monotonic time of the next pending
* timer or KTIME_MAX if no timer is pending.
*/
u64 get_next_timer_interrupt(unsigned long basej, u64 basem)
{
return __get_next_timer_interrupt(basej, basem);
}
/**
* timer_clear_idle - Clear the idle state of the timer base
*