softirq.h

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#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 */