📄 hardirq.h.txt
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这个文件定义了
typedef struct {
unsigned int __softirq_active; //32位,相当于active_bh
unsigned int __softirq_mask; //32位,相当于mask_bh
unsigned int __local_irq_count;
unsigned int __local_bh_count;
unsigned int __syscall_count;
unsigned int __nmi_count; /* arch dependent */
} ____cacheline_aligned irq_cpustat_t;
#define in_interrupt() //检验是否处于中断中。
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