On Fri, Dec 20, 2019 at 04:19:56PM +1100, NeilBrown wrote: > I was a bit surprised that nfs4_map_atomic_open_claim() exists at all, > but given that it did, I assumed it would be used more uniformly. > > So this all implies that Linux NFS server claimed to support NFSv4.1 > before it actually did - which seems odd. This is just a bug (which are > expected), but a clear ommission. For what it's worth, I did make some attempt to keep 4.1 by default until 3.11 (see d109148111cd "nfsd4: support minorversion 1 by default") but probably could have communicated that better. This isn't the only blatant known issue in older code. --b.
