case CEPH_MDS_OP_MKSNAP: return "mksnap";
case CEPH_MDS_OP_RMSNAP: return "rmsnap";
case CEPH_MDS_OP_RENAMESNAP: return "renamesnap";
+ case CEPH_MDS_OP_READDIR_SNAPDIFF: return "readdir_snapdiff";
case CEPH_MDS_OP_SETFILELOCK: return "setfilelock";
case CEPH_MDS_OP_GETFILELOCK: return "getfilelock";
case CEPH_MDS_OP_FRAGMENTDIR: return "fragmentdir";