Imagine an org buffer in Emacs like:

* Title

Some text describing the title and the codew (sic) and whatnot.

#+BEGIN_SRC emacs_lisp
(setq backup-by-copying t)
#+END_SRC

I want flyspell to check the org buffer (and catch the spelling error in it) but ignore the content between the #+BEGIN_SRC and #+END_SRC marks. How does one go about that?