diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/hardirq.h | 2 | ||||
| -rw-r--r-- | include/linux/sched.h | 13 |
2 files changed, 14 insertions, 1 deletions
diff --git a/include/linux/hardirq.h b/include/linux/hardirq.h index a1c732ab0c76..a75d3a04ab68 100644 --- a/include/linux/hardirq.h +++ b/include/linux/hardirq.h @@ -137,7 +137,7 @@ extern void synchronize_irq(unsigned int irq); struct task_struct; -#ifndef CONFIG_VIRT_CPU_ACCOUNTING +#if !defined(CONFIG_VIRT_CPU_ACCOUNTING) && !defined(CONFIG_IRQ_TIME_ACCOUNTING) static inline void account_system_vtime(struct task_struct *tsk) { } diff --git a/include/linux/sched.h b/include/linux/sched.h index 63d5aea2b9fd..1ca5d041fccb 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -1865,6 +1865,19 @@ extern void sched_clock_idle_wakeup_event(u64 delta_ns); */ extern unsigned long long cpu_clock(int cpu); +#ifdef CONFIG_IRQ_TIME_ACCOUNTING +/* + * An i/f to runtime opt-in for irq time accounting based off of sched_clock. + * The reason for this explicit opt-in is not to have perf penalty with + * slow sched_clocks. + */ +extern void enable_sched_clock_irqtime(void); +extern void disable_sched_clock_irqtime(void); +#else +static inline void enable_sched_clock_irqtime(void) {} +static inline void disable_sched_clock_irqtime(void) {} +#endif + extern unsigned long long task_sched_runtime(struct task_struct *task); extern unsigned long long thread_group_sched_runtime(struct task_struct *task); |