ANNOUNCE: Journalling Flash File System, v2.

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:[email protected]:/home/cvs login (password: anoncvs) cvs -d :pserver:[email protected]:/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/

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dwmw2

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