diff options
| author | Yinghai Lu <yhlu.kernel@gmail.com> | 2008-08-19 20:50:09 -0700 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-10-16 16:52:32 +0200 |
| commit | 7f95ec9e4c12fd067febfd57532da1166d75d858 (patch) | |
| tree | b395b6776485f60e3f5d9d820ad665161ef76771 /include/linux/kernel_stat.h | |
| parent | 3060d6fe28570640c2d7d66d38b9eaa848c3b9e3 (diff) | |
x86: move kstat_irqs from kstat to irq_desc
based on Eric's patch ...
together mold it with dyn_array for irq_desc, will allcate kstat_irqs for
nr_irq_desc alltogether if needed. -- at that point nr_cpus is known already.
v2: make sure system without generic_hardirqs works they don't have irq_desc
v3: fix merging
v4: [mingo@elte.hu] fix typo
[ mingo@elte.hu ] irq: build fix
fix:
arch/x86/xen/spinlock.c: In function 'xen_spin_lock_slow':
arch/x86/xen/spinlock.c:90: error: 'struct kernel_stat' has no member named 'irqs'
Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'include/linux/kernel_stat.h')
| -rw-r--r-- | include/linux/kernel_stat.h | 22 |
1 files changed, 15 insertions, 7 deletions
diff --git a/include/linux/kernel_stat.h b/include/linux/kernel_stat.h index fe1f7fe534b4..f10616712de5 100644 --- a/include/linux/kernel_stat.h +++ b/include/linux/kernel_stat.h @@ -28,10 +28,8 @@ struct cpu_usage_stat { struct kernel_stat { struct cpu_usage_stat cpustat; -#ifdef CONFIG_HAVE_DYN_ARRAY - unsigned int *irqs; -#else - unsigned int irqs[NR_IRQS]; +#ifndef CONFIG_GENERIC_HARDIRQS + unsigned int irqs[NR_IRQS]; #endif }; @@ -43,15 +41,25 @@ DECLARE_PER_CPU(struct kernel_stat, kstat); extern unsigned long long nr_context_switches(void); +#ifndef CONFIG_GENERIC_HARDIRQS +static inline unsigned int kstat_irqs_cpu(unsigned int irq, int cpu) +{ + return kstat_cpu(cpu).irqs[irq]; +} +#else +extern unsigned int kstat_irqs_cpu(unsigned int irq, int cpu); +#endif + /* * Number of interrupts per specific IRQ source, since bootup */ -static inline int kstat_irqs(int irq) +static inline unsigned int kstat_irqs(unsigned int irq) { - int cpu, sum = 0; + unsigned int sum = 0; + int cpu; for_each_possible_cpu(cpu) - sum += kstat_cpu(cpu).irqs[irq]; + sum += kstat_irqs_cpu(irq, cpu); return sum; } |