Hi, On Sat, Jul 21 2012, Michael Rogers wrote: > Does anyone on the list know whether flash controller chips use > journalling? I'm guessing they might because YAFFS does.
I don't think so -- YAFFS is a filesystem, and the wear-leveling algorithm on the controller only knows how to act on reads/writes to individual blocks on the flash, so they're very different layers. The flash controller isn't a replacement for a filesystem; you still need to use one, and it may or may not be journaled. (Although the independence between wear-leveling algorithm and filesystem isn't total; there's evidence that the vendors teach their firmware how to handle writes to the Windows FAT cleanly.) - Chris. -- Chris Ball <[email protected]> <http://printf.net/> One Laptop Per Child _______________________________________________ liberationtech mailing list [email protected] Should you need to change your subscription options, please go to: https://mailman.stanford.edu/mailman/listinfo/liberationtech If you would like to receive a daily digest, click "yes" (once you click above) next to "would you like to receive list mail batched in a daily digest?" You will need the user name and password you receive from the list moderator in monthly reminders. You may ask for a reminder here: https://mailman.stanford.edu/mailman/listinfo/liberationtech Should you need immediate assistance, please contact the list moderator. Please don't forget to follow us on http://twitter.com/#!/Liberationtech
