__RW_LOCK_UNLOCKED   28 include/linux/rwlock.h 	do { *(lock) = __RW_LOCK_UNLOCKED(lock); } while (0)
__RW_LOCK_UNLOCKED   46 include/linux/rwlock_types.h #define DEFINE_RWLOCK(x)	rwlock_t x = __RW_LOCK_UNLOCKED(x)