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#ifndef __LINUX_RWSEM_H__ #define __LINUX_RWSEM_H__ struct rw_semaphore {}; #define init_rwsem(rwsem) #define down_read(rwsem) #define down_write(rwsem) #define up_read(rwsem) #define up_write(rwsem) #endif /* __LINUX_RWSEM_H__ */