NFSv4.1: data server connection

Introduce a data server set_client and init session following the
nfs4_set_client and  nfs4_init_session convention.

Once a new nfs_client is on the nfs_client_list, the nfs_client cl_cons_state
serializes access to creating an nfs_client struct with matching properties.

Use the new nfs_get_client() that initializes new clients.

Signed-off-by: Andy Adamson <andros@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 9d2b9dae277d..c66ff7fe1b6b 100644
--- a/include/linux/nfs_xdr.h
+++ b/include/linux/nfs_xdr.h
@@ -1018,6 +1018,7 @@ struct nfs_read_data {
         struct nfs_readres  res;
         unsigned long           timestamp;      /* For lease renewal */
         struct pnfs_layout_segment *lseg;
+        struct nfs_client       *ds_clp;        /* pNFS data server */
         const struct rpc_call_ops *mds_ops;
         struct page             *page_array[NFS_PAGEVEC_SIZE];
 };