Re: [Jfs-discussion] jfs_filsys.h information

[Christoph H. <hc...@ca...>]

On Thu, Jan 24, 2002 at 01:30:26PM -0800, Hiten Pandya wrote:
> I was wondering about the jfs_filsys.h file; is the
> information in that file implementation dependant,
> such
> as the superblock magic number, as well as the
> FS_* defined variables, do they need a change if they
> are going to be on FreeBSD?

This file should be shareable between implementations.
I already compile it in a FreeBSD enviroment.

> Last question ;)
> Do I need to add a JFS_FREEBSD defined variable, if
> it is going to be on FreeBSD, and what possible value
> does that defined variable need, and, do any of the
> other JFS_{AIX,LINUX,DFS,OS2} need a change if they
> are to be on FreeBSD?

There is no real need.  A FreeBSD port should be able to
use JFS_LINUX FSes flawlessly.  Of course one could add
a JFS_FREEBSD value, but it would be as useless as the
EXT2_OS_FREEBSD define in FreeBSD's ext2 code.

Interestingly NetBSD doesn't do the same, although unlike
the FreeBSD one tyheir ext2 implementation is not derived
from an old, buggy Linux one </rant>