* ron minnich rminnich@gmail.com [080105 23:23]:
OK, I'm back. Stefan, we don't really need this for correctness. But on the alix1c I am observing huge delays at startup while find_file iterates through 512KB of empty FLASH looking for entries that are not there. So the goal here is to have a header which says "I'm the last one" so we can short-circuit scanning all of flash. This one change will shave quite a few seconds from boot time.
And we can't cache the ROM because of CAR?
I am not convinced that failing to find files has to be a performance critical path - While I generally agree it must not take several seconds, something's wrong with our logic if we fail to find files before we have RAM and Cache enabled.