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{
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{
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    waitq_t wq;
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    waitq_t wq;
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};
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};
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#define semaphore_down(s) \
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#define semaphore_down(s) \
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    _semaphore_down_timeout((s),SYNCH_NO_TIMEOUT,SYNCH_BLOCKING)
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    _semaphore_down_timeout((s),SYNCH_NO_TIMEOUT,SYNCH_FLAGS_NONE)
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#define semaphore_trydown(s) \
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#define semaphore_trydown(s) \
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    _semaphore_down_timeout((s),SYNCH_NO_TIMEOUT,SYNCH_NON_BLOCKING)   
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    _semaphore_down_timeout((s),SYNCH_NO_TIMEOUT,SYNCH_FLAGS_NON_BLOCKING) 
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#define semaphore_down_timeout(s,usec) \
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#define semaphore_down_timeout(s,usec) \
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    _semaphore_down_timeout((s),(usec),SYNCH_NON_BLOCKING)
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    _semaphore_down_timeout((s),(usec),SYNCH_FLAGS_NONE)
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extern void semaphore_initialize(semaphore_t *s, int val);
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extern void semaphore_initialize(semaphore_t *s, int val);
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extern int _semaphore_down_timeout(semaphore_t *s, __u32 usec, int trydown);
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extern int _semaphore_down_timeout(semaphore_t *s, __u32 usec, int flags);
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extern void semaphore_up(semaphore_t *s);
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extern void semaphore_up(semaphore_t *s);
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#endif
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#endif
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