70 lines
1.6 KiB
C
70 lines
1.6 KiB
C
#ifndef _LINUX_KERNEL_STAT_H
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#define _LINUX_KERNEL_STAT_H
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#include <linux/config.h>
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#include <asm/irq.h>
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#include <linux/smp.h>
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#include <linux/threads.h>
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/*
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* 'kernel_stat.h' contains the definitions needed for doing
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* some kernel statistics (CPU usage, context switches ...),
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* used by rstatd/perfmeter
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*/
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#define DK_MAX_MAJOR 16
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#define DK_MAX_DISK 16
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struct kernel_stat {
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unsigned int per_cpu_user[NR_CPUS],
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per_cpu_nice[NR_CPUS],
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per_cpu_system[NR_CPUS];
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unsigned int dk_drive[DK_MAX_MAJOR][DK_MAX_DISK];
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unsigned int dk_drive_rio[DK_MAX_MAJOR][DK_MAX_DISK];
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unsigned int dk_drive_wio[DK_MAX_MAJOR][DK_MAX_DISK];
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unsigned int dk_drive_rblk[DK_MAX_MAJOR][DK_MAX_DISK];
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unsigned int dk_drive_wblk[DK_MAX_MAJOR][DK_MAX_DISK];
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unsigned int pgpgin, pgpgout;
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unsigned int pswpin, pswpout;
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#if defined (__hppa__)
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unsigned int irqs[NR_CPUS][NR_IRQ_REGS][IRQ_PER_REGION];
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#elif !defined(CONFIG_ARCH_S390)
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unsigned int irqs[NR_CPUS][NR_IRQS];
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#endif
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unsigned int context_swtch;
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};
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extern struct kernel_stat kstat;
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extern unsigned long nr_context_switches(void);
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#if defined (__hppa__)
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/*
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* Number of interrupts per specific IRQ source, since bootup
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*/
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static inline int kstat_irqs (int irq)
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{
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int i, sum=0;
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for (i = 0 ; i < smp_num_cpus ; i++)
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sum += kstat.irqs[i][IRQ_REGION(irq)][IRQ_OFFSET(irq)];
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return sum;
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}
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#elif !defined(CONFIG_ARCH_S390)
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/*
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* Number of interrupts per specific IRQ source, since bootup
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*/
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extern inline int kstat_irqs (int irq)
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{
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int i, sum=0;
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for (i = 0 ; i < smp_num_cpus ; i++)
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sum += kstat.irqs[cpu_logical_map(i)][irq];
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return sum;
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}
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#endif
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#endif /* _LINUX_KERNEL_STAT_H */
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