diff options
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/kernel/time/timer.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/kernel/kernel/time/timer.c b/kernel/kernel/time/timer.c index 76a301b24..016a0bf52 100644 --- a/kernel/kernel/time/timer.c +++ b/kernel/kernel/time/timer.c @@ -1453,9 +1453,11 @@ u64 get_next_timer_interrupt(unsigned long basej, u64 basem) * the base lock to check when the next timer is pending and so * we assume the next jiffy. */ - return basem + TICK_NSEC; -#endif + if (!spin_do_trylock(&base->lock)) + return basem + TICK_NSEC; +#else spin_lock(&base->lock); +#endif if (base->active_timers) { if (time_before_eq(base->next_timer, base->timer_jiffies)) base->next_timer = __next_timer_interrupt(base); @@ -1465,7 +1467,11 @@ u64 get_next_timer_interrupt(unsigned long basej, u64 basem) else expires = basem + (nextevt - basej) * TICK_NSEC; } +#ifdef CONFIG_PREEMPT_RT_FULL + rt_spin_unlock(&base->lock); +#else spin_unlock(&base->lock); +#endif return cmp_next_hrtimer_event(basem, expires); } |