| Date | Sun, 23 Feb 2014 21:40:14 -0000 | From | Thomas Gleixner <> | Subject | [patch 11/26] genirq: Add a kstat helper to increment irq stats |
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There is a common pattern all over the place:
kstat_incr_irqs_this_cpu(irq, irq_to_desc(irq));
This results in a call to core code anyway. So provide a function which does the same thing in core.
While at it, replace the butt ugly macro with an inline.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de> --- include/linux/kernel_stat.h | 12 +++++++----- kernel/irq/irqdesc.c | 5 +++++ 2 files changed, 12 insertions(+), 5 deletions(-)
Index: tip/include/linux/kernel_stat.h =================================================================== --- tip.orig/include/linux/kernel_stat.h +++ tip/include/linux/kernel_stat.h @@ -54,11 +54,13 @@ extern unsigned long long nr_context_swi #include <linux/irq.h> extern unsigned int kstat_irqs_cpu(unsigned int irq, int cpu); -#define kstat_incr_irqs_this_cpu(irqno, DESC) \ -do { \ - __this_cpu_inc(*(DESC)->kstat_irqs); \ - __this_cpu_inc(kstat.irqs_sum); \ -} while (0) +static inline void kstat_incr_irqs_this_cpu(unsigned int irq, struct irq_desc *desc) +{ + __this_cpu_inc(*desc->kstat_irqs); + __this_cpu_inc(kstat.irqs_sum); +} + +extern void kstat_incr_irq_this_cpu(unsigned int irq); static inline void kstat_incr_softirqs_this_cpu(unsigned int irq) { Index: tip/kernel/irq/irqdesc.c =================================================================== --- tip.orig/kernel/irq/irqdesc.c +++ tip/kernel/irq/irqdesc.c @@ -489,6 +489,11 @@ void dynamic_irq_cleanup(unsigned int ir raw_spin_unlock_irqrestore(&desc->lock, flags); } +void kstat_incr_irq_this_cpu(unsigned int irq) +{ + kstat_incr_irqs_this_cpu(irq, irq_to_desc(irq)); +} + unsigned int kstat_irqs_cpu(unsigned int irq, int cpu) { struct irq_desc *desc = irq_to_desc(irq);
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