NFSv4: Open state recovery must account for file permission changes

commit 304020fe upstream.

If the file permissions change on the server, then we may not be able to
recover open state. If so, we need to ensure that we mark the file
descriptor appropriately.
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Tested-by: Oleg Drokin <green@linuxhacker.ru>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>

fs/nfs/nfs4state.c

@@ -1203,6 +1203,9 @@ static int nfs4_reclaim_open_state(struct nfs4_state_owner *sp, const struct nfs
 						__func__, status);
 			case -ENOENT:
 			case -ENOMEM:
+			case -EACCES:
+			case -EROFS:
+			case -EIO:
 			case -ESTALE:
 				/*
 				 * Open state on this file cannot be recovered