1277 			       struct pipe_inode_info *opipe,
1281 			    struct pipe_inode_info *opipe,  in splice_file_to_pipe()  argument
1287 	pipe_lock(opipe);  in splice_file_to_pipe()
1288 	ret = wait_for_space(opipe, flags);  in splice_file_to_pipe()
1290 		ret = do_splice_read(in, offset, opipe, len, flags);  in splice_file_to_pipe()
1291 	pipe_unlock(opipe);  in splice_file_to_pipe()
1293 		wakeup_pipe_readers(opipe);  in splice_file_to_pipe()
1304 	struct pipe_inode_info *opipe;  in do_splice()  local
1313 	opipe = get_pipe_info(out, true);  in do_splice()
1315 	if (ipipe && opipe) {  in do_splice()
1320 		if (ipipe == opipe)  in do_splice()
1326 		ret = splice_pipe_to_pipe(ipipe, opipe, len, flags);  in do_splice()
1356 	} else if (opipe) {  in do_splice()
1374 		ret = splice_file_to_pipe(in, opipe, &offset, len, flags);  in do_splice()
1402 	struct pipe_inode_info *opipe;  in __do_splice()  local
1407 	opipe = get_pipe_info(out, true);  in __do_splice()
1414 	if (opipe) {  in __do_splice()
1717 			       struct pipe_inode_info *opipe,  in splice_pipe_to_pipe()  argument
1732 	ret = opipe_prep(opipe, flags);  in splice_pipe_to_pipe()
1741 	pipe_double_lock(ipipe, opipe);  in splice_pipe_to_pipe()
1744 	o_head = opipe->head;  in splice_pipe_to_pipe()
1749 		if (!opipe->readers) {  in splice_pipe_to_pipe()
1757 		o_tail = opipe->tail;  in splice_pipe_to_pipe()
1767 		    pipe_full(o_head, o_tail, opipe->max_usage)) {  in splice_pipe_to_pipe()
1783 			pipe_unlock(opipe);  in splice_pipe_to_pipe()
1788 		obuf = pipe_buf(opipe, o_head);  in splice_pipe_to_pipe()
1801 			opipe->head = o_head;  in splice_pipe_to_pipe()
1826 			opipe->head = o_head;  in splice_pipe_to_pipe()
1833 	pipe_unlock(opipe);  in splice_pipe_to_pipe()
1839 		wakeup_pipe_readers(opipe);  in splice_pipe_to_pipe()
1851 			 struct pipe_inode_info *opipe,  in link_pipe()  argument
1864 	pipe_double_lock(ipipe, opipe);  in link_pipe()
1867 	o_head = opipe->head;  in link_pipe()
1870 		if (!opipe->readers) {  in link_pipe()
1878 		o_tail = opipe->tail;  in link_pipe()
1885 		    pipe_full(o_head, o_tail, opipe->max_usage))  in link_pipe()
1889 		obuf = pipe_buf(opipe, o_head);  in link_pipe()
1916 		opipe->head = o_head;  in link_pipe()
1921 	pipe_unlock(opipe);  in link_pipe()
1927 		wakeup_pipe_readers(opipe);  in link_pipe()
1942 	struct pipe_inode_info *opipe = get_pipe_info(out, true);  in do_tee()  local
1953 	if (ipipe && opipe && ipipe != opipe) {  in do_tee()
1963 			ret = opipe_prep(opipe, flags);  in do_tee()
1965 				ret = link_pipe(ipipe, opipe, len, flags);  in do_tee()