Linux/Unix编程

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Unix_Linux

softirq.h：源码内容

							#ifndef __ASM_SOFTIRQ_H
#define __ASM_SOFTIRQ_H
#include <asm/atomic.h>
#include <asm/hardirq.h>
#define local_bh_disable()                      
do {                                            
        local_bh_count(smp_processor_id())++;   
        barrier();                              
} while (0)
#define __local_bh_enable()                     
do {                                            
        barrier();                              
        local_bh_count(smp_processor_id())--;   
} while (0)
#define local_bh_enable()                               
do {                                                    
        if (!--local_bh_count(smp_processor_id())       
            && softirq_pending(smp_processor_id())) {   
                do_softirq();                           
                __sti();                                
        }                                               
} while (0)
#define in_softirq() (local_bh_count(smp_processor_id()) != 0)
#endif	/* __ASM_SOFTIRQ_H */

						