Block device as MTD

[Simon Evans]

I have checked this into CVS now. The following files are affected:

drivers/mtd/devices/blkmtd.c  - the driver itself
drivers/mtd/devices/Config.in
drivers/mtd/devices/Makefile
patches/Configure.help

Please consider this alpha software. It uses raw/io to the disk (not via
the buffer cache). Basic usage is:

modprobe blkmtd device=/dev/floppy/0  etc

If you are going to put a JFFS2 fs on the device, please note that
it can take quite a while to mount because JFFS2 scans every block.
A 96MB CF card took about 2 minutes.

On the plus side, if you have more memory then the size of the device,
you should find the whole device in the page cache ;)

cheers
si