15 struct semaphore {  struct
28 	struct semaphore name = __SEMAPHORE_INIT(name,count)  argument
33 static inline void sema_init(struct semaphore *sem, int val)  in sema_init()
40 static inline void init_MUTEX(struct semaphore *sem)  in init_MUTEX()
45 static inline void init_MUTEX_LOCKED(struct semaphore *sem)  in init_MUTEX_LOCKED()
58 extern void __down(struct semaphore * sem);
59 extern int  __down_interruptible(struct semaphore * sem);
60 extern int  __down_trylock(struct semaphore * sem);
61 extern void __up(struct semaphore * sem);
67 static inline void down(struct semaphore * sem)  in down()
77 static inline int down_interruptible (struct semaphore * sem)  in down_interruptible()
83 static inline int down_trylock(struct semaphore *sem)  in down_trylock()
94 static inline void up(struct semaphore * sem)  in up()