There are various topics particularly important to network and cluster file systems: - additional metadata on files, directories, mount points (statx, enhancements to the mount API, ACLs etc.) - performance related features (leases/delegation, RDMA integration, reflink/clone extensions, handling sideeffects of long latency network connections on common fs operations by better aggregating series of related operations together) - security features - mapping features available in various network and cluster FS protocols to Linux (in the past we also have discussed richacl, and a few features that would help Samba server). -- Thanks, Steve