ref: 3071470d08a2c5b611bcb34f0ee8e3e7647c5254
dir: /TODO/
*** commit blockers *** - atomics for all archs - docs *** important bits *** - repair tools *** nice to have, can go without *** - non-adm controlled snapshots - reclaiming data from deleted files is very delayed - performance optimization: - bulk block frees - root block faster upsert - small file optimizations - inline data *** probably not *** - transient exec snapshots