- fix readdir vs fragment race by keeping a separate frag pos, and ignoring dentries below it
mds
+- we either need to stop forwarding mds requests on behalf of client,
+ or we need to gracefully deal with multiple replies that (may) contain caps,
+ or we need to not forward requests that may include a cap reply.
+ * the problem is when we get duplicate replies with caps, we drop the second one, and in so doing
+ lose important state that is difficult to clean up...
- hard link backpointers
- anchor source dir
- build snaprealm for any hardlinked file