NFSv4: parse and display server implementation ids

Shows the implementation ids in /proc/self/mountstats.  This doesn't break
the nfs-utils mountstats tool.

Signed-off-by: Weston Andros Adamson <dros@netapp.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

2 files changed, 9 insertions, 8 deletions

diff --git a/include/linux/nfs_fs_sb.h b/include/linux/nfs_fs_sb.h
index 3bf47666646e..03d0b91c2d5b 100644
--- a/include/linux/nfs_fs_sb.h
+++ b/include/linux/nfs_fs_sb.h
@@ -18,6 +18,7 @@ struct nfs4_sequence_res;
 struct nfs_server;
 struct nfs4_minor_version_ops;
 struct server_scope;
+struct nfs41_impl_id;
 
 /*
  * The nfs_client identifies our client state to the server.
@@ -86,6 +87,7 @@ struct nfs_client {
 #endif
 
         struct server_scope     *server_scope;  /* from exchange_id */
+        struct nfs41_impl_id    *impl_id;       /* from exchange_id */
         struct net              *net;
 };
 
diff --git a/include/linux/nfs_xdr.h b/include/linux/nfs_xdr.h
index adbc84ac345f..046c1bfddc33 100644
--- a/include/linux/nfs_xdr.h
+++ b/include/linux/nfs_xdr.h
@@ -1054,14 +1054,6 @@ struct nfstime4 {
 };
 
 #ifdef CONFIG_NFS_V4_1
-struct nfs_impl_id4 {
-        u32             domain_len;
-        char            *domain;
-        u32             name_len;
-        char            *name;
-        struct nfstime4 date;
-};
-
 #define NFS4_EXCHANGE_ID_LEN    (48)
 struct nfs41_exchange_id_args {
         struct nfs_client               *client;
@@ -1082,10 +1074,17 @@ struct server_scope {
         char                            server_scope[NFS4_OPAQUE_LIMIT];
 };
 
+struct nfs41_impl_id {
+        char                            domain[NFS4_OPAQUE_LIMIT + 1];
+        char                            name[NFS4_OPAQUE_LIMIT + 1];
+        struct nfstime4                 date;
+};
+
 struct nfs41_exchange_id_res {
         struct nfs_client               *client;
         u32                             flags;
         struct server_scope             *server_scope;
+        struct nfs41_impl_id            *impl_id;
 };
 
 struct nfs41_create_session_args {