NFS: Eliminate client_sys in favour of cl_rpcclient

Eliminate nfs_server::client_sys in favour of nfs_client::cl_rpcclient as we
only really need one per server that we're talking to since it doesn't have any
security on it.

The retransmission management variables are also moved to the common struct as
they're required to set up the cl_rpcclient connection.

The NFS2/3 client and client_acl connections are thenceforth derived by cloning
the cl_rpcclient connection and post-applying the authorisation flavour.

The code for setting up the initial common connection has been moved to
client.c as nfs_create_rpc_client().  All the NFS program definition tables are
also moved there as that's where they're now required rather than super.c.

Signed-Off-By: David Howells <dhowells@redhat.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/fs/nfs/internal.h b/fs/nfs/internal.h
index ac370d5d4494..2f3aa52fbefc 100644
--- a/fs/nfs/internal.h
+++ b/fs/nfs/internal.h
@@ -20,6 +20,8 @@ extern void nfs_put_client(struct nfs_client *);
 extern struct nfs_client *nfs_find_client(const struct sockaddr_in *, int);
 extern struct nfs_client *nfs_get_client(const char *, const struct sockaddr_in *, int);
 extern void nfs_mark_client_ready(struct nfs_client *, int);
+extern int nfs_create_rpc_client(struct nfs_client *, int, unsigned int,
+                                 unsigned int, rpc_authflavor_t);
 
 /* nfs4namespace.c */
 #ifdef CONFIG_NFS_V4