Linux/Unix编程

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Unix_Linux

softirq.h：源码内容

							/*
 * BK Id: SCCS/s.softirq.h 1.13 07/12/01 20:02:34 paulus
 */
#ifdef __KERNEL__
#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();				
	}						
} while (0)
#define in_softirq() (local_bh_count(smp_processor_id()) != 0)
#endif	/* __ASM_SOFTIRQ_H */
#endif /* __KERNEL__ */

						