JFS filesystem in GRUB

[Sergey Tzukanov]

grub_jfs-0.2 for grub-0.5.96.1 
(http://tzukanov.narod.ru/files/grub_jfs-0.2.tar.bz2).

This patch provides native IBM JFS filesystem support for GRUB.
This is alpha quality code (but don't be afraid,
it will never write anything to disk; just crash 8-).
Future versions can be obtained from http://tzukanov.narod.ru/.

Patch divided into two files: grub_jfs-core and grub_jfs-build.
You can use just the first (and run autoreconf/automake)
or both (and no automake).

Limitations/caveats

Support only symlinks with size < 256 (AFAIK kernel jfs has the limitation too).
Can't handle data inlined into inode yet
(according to Dave Kleikamp this feature is not implemented).
Knows nothing about journal (will never do).

IT NEED TESTING. Please help with this.


TODO

Symlinks support (partially done).
Inline data support for very small files (not a real problem, see above).
Filesystem consistency checks in jfs_mount (what?).
Initial journal support (really?).

Changelog
June 8, 2001
        Version 0.2.
        Initial symlinks support; fixed segfault with empty directory.

June 5, 2001
        First public version (0.1).