760 static ssize_t btrfs_dio_read(struct kiocb *iocb, struct iov_iter *iter,  in btrfs_dio_read()  argument
765 	return iomap_dio_rw(iocb, iter, &btrfs_dio_iomap_ops, &btrfs_dio_ops,  in btrfs_dio_read()
769 static struct iomap_dio *btrfs_dio_write(struct kiocb *iocb, struct iov_iter *iter,  in btrfs_dio_write()  argument
774 	return __iomap_dio_rw(iocb, iter, &btrfs_dio_iomap_ops, &btrfs_dio_ops,  in btrfs_dio_write()
792 ssize_t btrfs_direct_write(struct kiocb *iocb, struct iov_iter *from)  in btrfs_direct_write()  argument
794 	struct file *file = iocb->ki_filp;  in btrfs_direct_write()
806 	if (iocb->ki_flags & IOCB_NOWAIT)  in btrfs_direct_write()
815 	if (iocb->ki_pos + iov_iter_count(from) <= i_size_read(inode) && IS_NOSEC(inode))  in btrfs_direct_write()
830 	ret = generic_write_checks(iocb, from);  in btrfs_direct_write()
836 	ret = btrfs_write_check(iocb, ret);  in btrfs_direct_write()
842 	pos = iocb->ki_pos;  in btrfs_direct_write()
879 	dio = btrfs_dio_write(iocb, from, written);  in btrfs_direct_write()
944 	if (iocb->ki_flags & IOCB_NOWAIT) {  in btrfs_direct_write()
949 	pos = iocb->ki_pos;  in btrfs_direct_write()
950 	written_buffered = btrfs_buffered_write(iocb, from);  in btrfs_direct_write()
967 	iocb->ki_pos = pos + written_buffered;  in btrfs_direct_write()
999 ssize_t btrfs_direct_read(struct kiocb *iocb, struct iov_iter *to)  in btrfs_direct_read()  argument
1001 	struct inode *inode = file_inode(iocb->ki_filp);  in btrfs_direct_read()
1009 	if (check_direct_read(inode_to_fs_info(inode), to, iocb->ki_pos))  in btrfs_direct_read()
1031 	ret = btrfs_dio_read(iocb, to, read);  in btrfs_direct_read()