diff options
| author | Thomas Gleixner <tglx@linutronix.de> | 2020-12-10 22:25:44 +0300 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2020-12-15 18:19:31 +0300 |
| commit | 501e2db67fa4264b517de5c7934e94cca89b3a1e (patch) | |
| tree | dc656c09981d9fcaef2bd9cc6889d9e9e124c505 /include/linux/irqdesc.h | |
| parent | 26c19d0a8610fb233b31730fe26a31145f2d9796 (diff) | |
| download | linux-501e2db67fa4264b517de5c7934e94cca89b3a1e.tar.xz | |
genirq: Provide kstat_irqdesc_cpu()
Most users of kstat_irqs_cpu() have the irq descriptor already. No point in
calling into the core code and looking it up once more.
Use it in per_cpu_count_show() to start with.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20201210194043.362094758@linutronix.de
Diffstat (limited to 'include/linux/irqdesc.h')
| -rw-r--r-- | include/linux/irqdesc.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/include/linux/irqdesc.h b/include/linux/irqdesc.h index 4a1d016716f4..891b323266df 100644 --- a/include/linux/irqdesc.h +++ b/include/linux/irqdesc.h @@ -113,6 +113,12 @@ static inline void irq_unlock_sparse(void) { } extern struct irq_desc irq_desc[NR_IRQS]; #endif +static inline unsigned int irq_desc_kstat_cpu(struct irq_desc *desc, + unsigned int cpu) +{ + return desc->kstat_irqs ? *per_cpu_ptr(desc->kstat_irqs, cpu) : 0; +} + static inline struct irq_desc *irq_data_to_desc(struct irq_data *data) { return container_of(data->common, struct irq_desc, irq_common_data); |