On Sun, 01 Mar 2009, Goswin von Brederlow wrote: > Obviously with delta storage the underlying branches really MUST be > read-only. As for configuration I see no problem in clasifying a > branch as RO, RW or D. If the user wants a modifiable RO branch then > he can not have any D branch. Easy enough. Not necessarily. A delta filesystem could support automatic or manual merges very well. This is not really possible with a writable union. Miklos -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html