436 void iov_iter_init(struct iov_iter *i, unsigned int direction,  in iov_iter_init()  argument
440 	WARN_ON(direction & ~(READ | WRITE));  in iov_iter_init()
441 	direction &= READ | WRITE;  in iov_iter_init()
445 		i->type = ITER_KVEC | direction;  in iov_iter_init()
448 		i->type = ITER_IOVEC | direction;  in iov_iter_init()
1131 void iov_iter_kvec(struct iov_iter *i, unsigned int direction,  in iov_iter_kvec()  argument
1135 	WARN_ON(direction & ~(READ | WRITE));  in iov_iter_kvec()
1136 	i->type = ITER_KVEC | (direction & (READ | WRITE));  in iov_iter_kvec()
1144 void iov_iter_bvec(struct iov_iter *i, unsigned int direction,  in iov_iter_bvec()  argument
1148 	WARN_ON(direction & ~(READ | WRITE));  in iov_iter_bvec()
1149 	i->type = ITER_BVEC | (direction & (READ | WRITE));  in iov_iter_bvec()
1157 void iov_iter_pipe(struct iov_iter *i, unsigned int direction,  in iov_iter_pipe()  argument
1161 	BUG_ON(direction != READ);  in iov_iter_pipe()
1181 void iov_iter_discard(struct iov_iter *i, unsigned int direction, size_t count)  in iov_iter_discard()  argument
1183 	BUG_ON(direction != READ);  in iov_iter_discard()