On Wed, 17 Mar 1999 08:49:00 -0800 (PST) 
 Konrad Schroder <perseant@netbsd.org> wrote:

 > Module Name:	src
 > Committed By:	perseant
 > Date:		Wed Mar 17 16:49:00 UTC 1999
 > 
 > Modified Files:
 > 	src/sys/ufs/lfs: lfs.h
 > Log Message:
 > Fix pad on lfs.h so it is really 512 bytes, as advertized

That reminds me...

The dlfs_cksum should be at the end of the superblock, not before the padding.

With it in its current position, if you ever end up using fields after
the checksum, either:

	(a) they won't be checksummed, or

	(b) you'll have to bump the fs level.

Given that the only thing that checks the checksum is your (not yet
checked in) fsck_lfs, perhaps now is the right time to move the checksum
to the end of the superblock, and put the pad in front of it.

        -- Jason R. Thorpe <thorpej@nas.nasa.gov>