TAKE - fix something I broke in the merge

[Steve Lord <lord@xxxxxxx>]

I was a bit ambitious with some of the code - and found a box which
no longer booted. Backing out some blocksize changes I made and going
back to the original 512 byte blocksize code.

Date:  Thu Oct 25 14:35:51 PDT 2001
Workarea:  jen.americas.sgi.com:/src/lord/xfs-linux.2.4

The following file(s) were checked into:
  bonnie.engr.sgi.com:/isms/slinx/2.4.x-xfs


Modid:  2.4.x-xfs:slinx:105469a
linux/fs/xfs/linux/xfs_super.c - 1.144
        - Back out a bit of the code - I found a box which did not like it.