diff --git a/include/linux/tick.h b/include/linux/tick.h index 059052306831496d88de2f143930a32593b8ac79..9a82c7dc3fdd9f1fd35d62fb2ab0734516c9ad6c 100644 --- a/include/linux/tick.h +++ b/include/linux/tick.h @@ -183,13 +183,8 @@ static inline bool tick_nohz_full_cpu(int cpu) extern void tick_nohz_init(void); extern void __tick_nohz_full_check(void); +extern void tick_nohz_full_kick(void); extern void tick_nohz_full_kick_cpu(int cpu); - -static inline void tick_nohz_full_kick(void) -{ - tick_nohz_full_kick_cpu(smp_processor_id()); -} - extern void tick_nohz_full_kick_all(void); extern void __tick_nohz_task_switch(struct task_struct *tsk); #else diff --git a/kernel/time/tick-sched.c b/kernel/time/tick-sched.c index 99aa6ee3908fbbff83923b2a8bb4c72b06e3f281..f654a8a298fad5cac36465bdcb23fddeb854f2ef 100644 --- a/kernel/time/tick-sched.c +++ b/kernel/time/tick-sched.c @@ -224,6 +224,20 @@ static DEFINE_PER_CPU(struct irq_work, nohz_full_kick_work) = { .func = nohz_full_kick_work_func, }; +/* + * Kick this CPU if it's full dynticks in order to force it to + * re-evaluate its dependency on the tick and restart it if necessary. + * This kick, unlike tick_nohz_full_kick_cpu() and tick_nohz_full_kick_all(), + * is NMI safe. + */ +void tick_nohz_full_kick(void) +{ + if (!tick_nohz_full_cpu(smp_processor_id())) + return; + + irq_work_queue(&__get_cpu_var(nohz_full_kick_work)); +} + /* * Kick the CPU if it's full dynticks in order to force it to * re-evaluate its dependency on the tick and restart it if necessary.