diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/irqdesc.h | 4 | ||||
| -rw-r--r-- | include/linux/kernel_stat.h | 8 |
2 files changed, 12 insertions, 0 deletions
diff --git a/include/linux/irqdesc.h b/include/linux/irqdesc.h index c28612674acb..fd091c35d572 100644 --- a/include/linux/irqdesc.h +++ b/include/linux/irqdesc.h @@ -20,9 +20,13 @@ struct pt_regs; /** * struct irqstat - interrupt statistics * @cnt: real-time interrupt count + * @ref: snapshot of interrupt count */ struct irqstat { unsigned int cnt; +#ifdef CONFIG_GENERIC_IRQ_STAT_SNAPSHOT + unsigned int ref; +#endif }; /** diff --git a/include/linux/kernel_stat.h b/include/linux/kernel_stat.h index 9935f7ecbfb9..9c042c6384bb 100644 --- a/include/linux/kernel_stat.h +++ b/include/linux/kernel_stat.h @@ -79,6 +79,14 @@ static inline unsigned int kstat_cpu_softirqs_sum(int cpu) return sum; } +#ifdef CONFIG_GENERIC_IRQ_STAT_SNAPSHOT +extern void kstat_snapshot_irqs(void); +extern unsigned int kstat_get_irq_since_snapshot(unsigned int irq); +#else +static inline void kstat_snapshot_irqs(void) { } +static inline unsigned int kstat_get_irq_since_snapshot(unsigned int irq) { return 0; } +#endif + /* * Number of interrupts per specific IRQ source, since bootup */ |