Minor update: - made cache code topology agnostic (ie., tree layout hints [height] are maintained but not used by the cache code itself, group members are treated uniformly);
- made group traversal routine public; - panic fix for nullfs. The respective diffs for the cache system and nullfs are available here: http://creo.hu/~csaba/tmp/visible/dfly/ as well as incremental diffs from the latest posted patches. Regards, Csaba
