Linux/Unix编程

开发平台：

Unix_Linux

softirq.h：源码内容

							#ifndef __ASM_SH_SOFTIRQ_H
#define __ASM_SH_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 {							
	barrier();					
	if (!--local_bh_count(smp_processor_id())	
	    && softirq_pending(smp_processor_id())) {	
		do_softirq();				
	}						
} while (0)
#define in_softirq() (local_bh_count(smp_processor_id()) != 0)
#endif /* __ASM_SH_SOFTIRQ_H */

						