NFS implement v4.0 callback_ident

Use the small id to pointer translator service to provide a unique callback
identifier per SETCLIENTID call used to identify the v4.0 callback service
associated with the clientid.

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_fs_sb.h b/include/linux/nfs_fs_sb.h
index 452d96436d26..1eaa054a2c7d 100644
--- a/include/linux/nfs_fs_sb.h
+++ b/include/linux/nfs_fs_sb.h
@@ -71,6 +71,7 @@ struct nfs_client {
          */
         char                    cl_ipaddr[48];
         unsigned char           cl_id_uniquifier;
+        u32                     cl_cb_ident;    /* v4.0 callback identifier */
         const struct nfs4_minor_version_ops *cl_mvops;
 #endif /* CONFIG_NFS_V4 */