NFS: Create a free_client rpc_op

NFS v4 needs a way to shut down callbacks and sessions, but v2 and v3
don't.

Signed-off-by: Bryan Schumaker <bjschuma@netapp.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/include/linux/nfs_xdr.h b/include/linux/nfs_xdr.h
index 62235be07fb8..e61dc7235d5d 100644
--- a/include/linux/nfs_xdr.h
+++ b/include/linux/nfs_xdr.h
@@ -1427,6 +1427,7 @@ struct nfs_rpc_ops {
         struct nfs_client *
                 (*init_client) (struct nfs_client *, const struct rpc_timeout *,
                                 const char *, rpc_authflavor_t);
+        void    (*free_client) (struct nfs_client *);
 };
 
 /*