export __vfs_read()

ssize_t __vfs_read(struct file *file, char __user *buf, size_t count,

		   loff_t *pos)

{

	ssize_t ret;

	if (file->f_op->read)

		ret = file->f_op->read(file, buf, count, pos);

		return file->f_op->read(file, buf, count, pos);

	else if (file->f_op->aio_read)

		ret = do_sync_read(file, buf, count, pos);

		return do_sync_read(file, buf, count, pos);

	else if (file->f_op->read_iter)

		ret = new_sync_read(file, buf, count, pos);

		return new_sync_read(file, buf, count, pos);

	else

		ret = -EINVAL;

	return ret;

		return -EINVAL;

}

EXPORT_SYMBOL(__vfs_read);

ssize_t vfs_read(struct file *file, char __user *buf, size_t count, loff_t *pos)

{