diff options
| -rw-r--r-- | kernel/time/tick-internal.h | 1 | ||||
| -rw-r--r-- | kernel/time/timer.c | 10 |
2 files changed, 11 insertions, 0 deletions
diff --git a/kernel/time/tick-internal.h b/kernel/time/tick-internal.h index ccf39befde85..7e3090109e33 100644 --- a/kernel/time/tick-internal.h +++ b/kernel/time/tick-internal.h @@ -165,6 +165,7 @@ extern void fetch_next_timer_interrupt_remote(unsigned long basej, u64 basem, unsigned int cpu); extern void timer_lock_remote_bases(unsigned int cpu); extern void timer_unlock_remote_bases(unsigned int cpu); +extern bool timer_base_is_idle(void); # endif #else /* CONFIG_NO_HZ_COMMON */ static inline void timers_update_nohz(void) { } diff --git a/kernel/time/timer.c b/kernel/time/timer.c index 4420cdf59e8c..e02ac4607985 100644 --- a/kernel/time/timer.c +++ b/kernel/time/timer.c @@ -2159,6 +2159,16 @@ void timer_lock_remote_bases(unsigned int cpu) raw_spin_lock(&base_local->lock); raw_spin_lock_nested(&base_global->lock, SINGLE_DEPTH_NESTING); } + +/** + * timer_base_is_idle() - Return whether timer base is set idle + * + * Returns value of local timer base is_idle value. + */ +bool timer_base_is_idle(void) +{ + return __this_cpu_read(timer_bases[BASE_LOCAL].is_idle); +} # endif /* CONFIG_SMP */ static inline u64 __get_next_timer_interrupt(unsigned long basej, u64 basem, |