1002 			       struct pipe_inode_info *opipe,
1012 	struct pipe_inode_info *opipe;  in do_splice()  local
1021 	opipe = get_pipe_info(out, true);  in do_splice()
1023 	if (ipipe && opipe) {  in do_splice()
1028 		if (ipipe == opipe)  in do_splice()
1034 		return splice_pipe_to_pipe(ipipe, opipe, len, flags);  in do_splice()
1070 	if (opipe) {  in do_splice()
1084 		pipe_lock(opipe);  in do_splice()
1085 		ret = wait_for_space(opipe, flags);  in do_splice()
1090 			p_space = opipe->max_usage - pipe_occupancy(opipe->head, opipe->tail);  in do_splice()
1093 			ret = do_splice_to(in, &offset, opipe, len, flags);  in do_splice()
1095 		pipe_unlock(opipe);  in do_splice()
1097 			wakeup_pipe_readers(opipe);  in do_splice()
1114 	struct pipe_inode_info *opipe;  in __do_splice()  local
1119 	opipe = get_pipe_info(out, true);  in __do_splice()
1123 	if (opipe && off_out)  in __do_splice()
1431 			       struct pipe_inode_info *opipe,  in splice_pipe_to_pipe()  argument
1447 	ret = opipe_prep(opipe, flags);  in splice_pipe_to_pipe()
1456 	pipe_double_lock(ipipe, opipe);  in splice_pipe_to_pipe()
1460 	o_head = opipe->head;  in splice_pipe_to_pipe()
1461 	o_mask = opipe->ring_size - 1;  in splice_pipe_to_pipe()
1466 		if (!opipe->readers) {  in splice_pipe_to_pipe()
1474 		o_tail = opipe->tail;  in splice_pipe_to_pipe()
1484 		    pipe_full(o_head, o_tail, opipe->max_usage)) {  in splice_pipe_to_pipe()
1500 			pipe_unlock(opipe);  in splice_pipe_to_pipe()
1505 		obuf = &opipe->bufs[o_head & o_mask];  in splice_pipe_to_pipe()
1518 			opipe->head = o_head;  in splice_pipe_to_pipe()
1543 			opipe->head = o_head;  in splice_pipe_to_pipe()
1550 	pipe_unlock(opipe);  in splice_pipe_to_pipe()
1556 		wakeup_pipe_readers(opipe);  in splice_pipe_to_pipe()
1568 		     struct pipe_inode_info *opipe,  in link_pipe()  argument
1582 	pipe_double_lock(ipipe, opipe);  in link_pipe()
1586 	o_head = opipe->head;  in link_pipe()
1587 	o_mask = opipe->ring_size - 1;  in link_pipe()
1590 		if (!opipe->readers) {  in link_pipe()
1598 		o_tail = opipe->tail;  in link_pipe()
1605 		    pipe_full(o_head, o_tail, opipe->max_usage))  in link_pipe()
1609 		obuf = &opipe->bufs[o_head & o_mask];  in link_pipe()
1636 		opipe->head = o_head;  in link_pipe()
1641 	pipe_unlock(opipe);  in link_pipe()
1647 		wakeup_pipe_readers(opipe);  in link_pipe()
1661 	struct pipe_inode_info *opipe = get_pipe_info(out, true);  in do_tee()  local
1672 	if (ipipe && opipe && ipipe != opipe) {  in do_tee()
1682 			ret = opipe_prep(opipe, flags);  in do_tee()
1684 				ret = link_pipe(ipipe, opipe, len, flags);  in do_tee()