extern int generic_copy_file_checks(struct file *file_in, loff_t pos_in,
struct file *file_out, loff_t pos_out,
size_t *count, unsigned int flags);
+extern ssize_t generic_file_buffered_read(struct kiocb *iocb,
+ struct iov_iter *to, ssize_t already_read);
extern ssize_t generic_file_read_iter(struct kiocb *, struct iov_iter *);
extern ssize_t __generic_file_write_iter(struct kiocb *, struct iov_iter *);
extern ssize_t generic_file_write_iter(struct kiocb *, struct iov_iter *);
* * total number of bytes copied, including those the were already @written
* * negative error code if nothing was copied
*/
-static ssize_t generic_file_buffered_read(struct kiocb *iocb,
+ssize_t generic_file_buffered_read(struct kiocb *iocb,
struct iov_iter *iter, ssize_t written)
{
struct file *filp = iocb->ki_filp;
file_accessed(filp);
return written ? written : error;
}
+EXPORT_SYMBOL_GPL(generic_file_buffered_read);
/**
* generic_file_read_iter - generic filesystem read routine