2 files changed, 23 insertions, 0 deletions

diff --git a/include/linux/nfs_fs_sb.h b/include/linux/nfs_fs_sb.h
index fc83d3d384d0..9f7b9192cf5e 100644
--- a/include/linux/nfs_fs_sb.h
+++ b/include/linux/nfs_fs_sb.h
@@ -90,6 +90,10 @@ struct nfs_client {
         struct nfs41_server_owner *cl_serverowner;
         struct nfs41_server_scope *cl_serverscope;
         struct nfs41_impl_id    *cl_implid;
+        /* nfs 4.1+ state protection modes: */
+        unsigned long           cl_sp4_flags;
+#define NFS_SP4_MACH_CRED_MINIMAL  1    /* Minimal sp4_mach_cred - state ops
+                                         * must use machine cred */
 #endif /* CONFIG_NFS_V4 */
 
 #ifdef CONFIG_NFS_FSCACHE
diff --git a/include/linux/nfs_xdr.h b/include/linux/nfs_xdr.h
index 7c3956d65b3e..01fd84b566f7 100644
--- a/include/linux/nfs_xdr.h
+++ b/include/linux/nfs_xdr.h
@@ -1107,6 +1107,23 @@ struct pnfs_ds_commit_info {
         struct pnfs_commit_bucket *buckets;
 };
 
+#define NFS4_OP_MAP_NUM_LONGS \
+        DIV_ROUND_UP(LAST_NFS4_OP, 8 * sizeof(unsigned long))
+#define NFS4_OP_MAP_NUM_WORDS \
+        (NFS4_OP_MAP_NUM_LONGS * sizeof(unsigned long) / sizeof(u32))
+struct nfs4_op_map {
+        union {
+                unsigned long longs[NFS4_OP_MAP_NUM_LONGS];
+                u32 words[NFS4_OP_MAP_NUM_WORDS];
+        } u;
+};
+
+struct nfs41_state_protection {
+        u32 how;
+        struct nfs4_op_map enforce;
+        struct nfs4_op_map allow;
+};
+
 #define NFS4_EXCHANGE_ID_LEN    (48)
 struct nfs41_exchange_id_args {
         struct nfs_client               *client;
@@ -1114,6 +1131,7 @@ struct nfs41_exchange_id_args {
         unsigned int                    id_len;
         char                            id[NFS4_EXCHANGE_ID_LEN];
         u32                             flags;
+        struct nfs41_state_protection   state_protect;
 };
 
 struct nfs41_server_owner {
@@ -1146,6 +1164,7 @@ struct nfs41_exchange_id_res {
         struct nfs41_server_owner       *server_owner;
         struct nfs41_server_scope       *server_scope;
         struct nfs41_impl_id            *impl_id;
+        struct nfs41_state_protection   state_protect;
 };
 
 struct nfs41_create_session_args {