small patch for ll_rw_blk.c

Andries.Brouwer@cwi.nl
Fri, 12 Sep 1997 19:36:09 +0200

Below a very minor improvement of ll_rw_blk.c:make_request().
Doing `df' on a freshly mounted HPFS filesystem produced a lot of
<6>attempt to access beyond end of device
<6>03:41: rw=2, want=48857, limit=48856
error messages. The reason is that map_4sectors() does a
breada(dev,secno,512,0,UINT_MAX);
without testing the size of the device. There are other places
as well where a breada is done past the end of a disk. So, for
a production kernel, there should not be any error messages in
this situation (that is otherwise handled correctly).
-----------------------------

(I do not repeat the patch because I have not checked
that it still is correct. But no doubt your problem is
still this breada past the end of the disk.)

Andries