ANNOUNCE: Journalling Flash File System, v2.

David Woodhouse
2001-03-15T20:49:16Z

Well, it's been almost a week since the latest stupid bug was found in the
JFFS2 code, so I suppose it's time to admit to the world that it exists.

JFFS2, developed by Red Hat, is a complete reimplementation of a
journalling filesystem for FLASH devices, based on the original JFFS
from Axis Communications AB.

Improvements of JFFS2 over the original JFFS include:

- Improved wear levelling and garbage collection performance.
- Compression
- Improved RAM footprint and response to system memory pressure.
- Improved concurrency and support for suspending flash erases
- Support for hard links.

You can get it from anonymous CVS:

cvs -d :pserver:anoncvs@cvs.infradead.org:/home/cvs login (password: anoncvs)
cvs -d :pserver:anoncvs@cvs.infradead.org:/home/cvs co mtd

The only platform currently supported is Linux 2.4. A port to eCos is
likely to happen quite soon.

JFFS2 filesystem images of the current 'Familiar' distribution for the
Compaq iPAQ, along with appropriate kernels, are available at
ftp://ftp.uk.linux.org/pub/people/dwmw2/familiar-0.3/

--
dwmw2