__down_write 65 include/linux/rwsem-spinlock.h extern void __down_write(struct rw_semaphore *sem); __down_write 51 kernel/rwsem.c LOCK_CONTENDED(sem, __down_write_trylock, __down_write); __down_write 134 kernel/rwsem.c LOCK_CONTENDED(sem, __down_write_trylock, __down_write);