ibu filesystem

At the moment, it's a mostly-boring filesystem. Local blkdev filesystem, sortof an extent-based ext2. Gonna be playing around with atomic metadata updates, runtime file optimizations, and other goodies as time permits.

Features it does have: may even work. if you're really lucky, it won't corrupt your data. bones for a background block reclaim (speeds up unlink, maybe?). attempts to intelligently allocate blocks for some cases, with file size hueristics mostly. probably some other stuff I don't remember :)

The only recent change is rediffing ibu against 2.4.22.

A bare-bones mkfs util is in CVS at
http://sourceforge.net/projects/fstools/
which may or may not work.

Insane BK users may issue a

bk pull bk://kernel.bkbits.net/jgarzik/ibu-2.4

Others nutters may download the patch from

ftp://ftp.kernel.org/pub/linux/kernel/people/jgarzik/patchkits/2.4/2.4.22-ibu1.patch.bz2

This will update the following files:

 fs/Config.in     |    2 
 fs/Makefile      |    1 
 fs/ibu/Makefile  |   11 +
 fs/ibu/aops.c    |  317 ++++++++++++++++++++++++++++
 fs/ibu/balloc.c  |  377 ++++++++++++++++++++++++++++++++++
 fs/ibu/dir.c     |  603 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
 fs/ibu/file.c    |   58 +++++
 fs/ibu/fsync.c   |   56 +++++
 fs/ibu/ibu-raw.h |  185 ++++++++++++++++
 fs/ibu/ibu.h     |  274 +++++++++++++++++++++++-
 fs/ibu/imap.c    |  325 +++++++++++++++++++++++++++++
 fs/ibu/inode.c   |  416 +++++++++++++++++++++++++++++++++++++
 fs/ibu/ioctl.c   |   94 ++++++++
 fs/ibu/msg.c     |   85 +++++++
 fs/ibu/namei.c   |  345 +++++++++++++++++++++++++++++++
 fs/ibu/super.c   |  517 +++++++++++++++++++++++++++++++++++++++++++++++
 fs/ibu/symlink.c |   44 ++++
 17 files changed, 3690 insertions(+), 20 deletions(-)