----- Ursprüngliche Mail ----- > Von: "bfields" <bfields@xxxxxxxxxxxx> >> Using /proc/fs/nfsfs/volumes it is possible to find the NFS fsid >> from the backend and use it as seed for mountd's UUID mechanism. > > Sorry, I haven't checked--what is that number, really? It's probably > not the fsid returned from the server, as that wouldn't be guaranteed > unique across multiple servers. But that means it's probably generated > in a way that doesn't guarantee it's stable across reboots. And we need > filehandles to work across reboots. Unless I badly misunderstood the code it comes from fs/nfs/client.c's nfs_create_server() where the NFS client fetches NFS_ATTR_FATTR via getattr(). So it should be unique: https://datatracker.ietf.org/doc/html/rfc7530#section-5.8.1.9 Thanks, //richard
