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authorLinus Torvalds <torvalds@linux-foundation.org>2008-10-20 16:22:50 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2008-10-20 16:23:01 -0400
commit9301975ec251bab1ad7cfcb84a688b26187e4e4a (patch)
tree91e48be0bdc67cbcb75bc8a299a3dcf168e0a814 /include/linux/kernel_stat.h
parent7110879cf2afbfb7af79675f5ff109e63d631c25 (diff)
parentdd3a1db900f2a215a7d7dd71b836e149a6cf5fed (diff)
Merge branch 'genirq-v28-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
This merges branches irq/genirq, irq/sparseirq-v4, timers/hpet-percpu and x86/uv. The sparseirq branch is just preliminary groundwork: no sparse IRQs are actually implemented by this tree anymore - just the new APIs are added while keeping the old way intact as well (the new APIs map 1:1 to irq_desc[]). The 'real' sparse IRQ support will then be a relatively small patch ontop of this - with a v2.6.29 merge target. * 'genirq-v28-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (178 commits) genirq: improve include files intr_remapping: fix typo io_apic: make irq_mis_count available on 64-bit too genirq: fix name space collisions of nr_irqs in arch/* genirq: fix name space collision of nr_irqs in autoprobe.c genirq: use iterators for irq_desc loops proc: fixup irq iterator genirq: add reverse iterator for irq_desc x86: move ack_bad_irq() to irq.c x86: unify show_interrupts() and proc helpers x86: cleanup show_interrupts genirq: cleanup the sparseirq modifications genirq: remove artifacts from sparseirq removal genirq: revert dynarray genirq: remove irq_to_desc_alloc genirq: remove sparse irq code genirq: use inline function for irq_to_desc genirq: consolidate nr_irqs and for_each_irq_desc() x86: remove sparse irq from Kconfig genirq: define nr_irqs for architectures with GENERIC_HARDIRQS=n ...
Diffstat (limited to 'include/linux/kernel_stat.h')
-rw-r--r--include/linux/kernel_stat.h20
1 files changed, 17 insertions, 3 deletions
diff --git a/include/linux/kernel_stat.h b/include/linux/kernel_stat.h
index cac3750cd65e..4a145caeee07 100644
--- a/include/linux/kernel_stat.h
+++ b/include/linux/kernel_stat.h
@@ -39,15 +39,29 @@ DECLARE_PER_CPU(struct kernel_stat, kstat);
39 39
40extern unsigned long long nr_context_switches(void); 40extern unsigned long long nr_context_switches(void);
41 41
42struct irq_desc;
43
44static inline void kstat_incr_irqs_this_cpu(unsigned int irq,
45 struct irq_desc *desc)
46{
47 kstat_this_cpu.irqs[irq]++;
48}
49
50static inline unsigned int kstat_irqs_cpu(unsigned int irq, int cpu)
51{
52 return kstat_cpu(cpu).irqs[irq];
53}
54
42/* 55/*
43 * Number of interrupts per specific IRQ source, since bootup 56 * Number of interrupts per specific IRQ source, since bootup
44 */ 57 */
45static inline int kstat_irqs(int irq) 58static inline unsigned int kstat_irqs(unsigned int irq)
46{ 59{
47 int cpu, sum = 0; 60 unsigned int sum = 0;
61 int cpu;
48 62
49 for_each_possible_cpu(cpu) 63 for_each_possible_cpu(cpu)
50 sum += kstat_cpu(cpu).irqs[irq]; 64 sum += kstat_irqs_cpu(irq, cpu);
51 65
52 return sum; 66 return sum;
53} 67}