5 files changed, 20 insertions, 0 deletions

diff --git a/include/linux/nfs_fs.h b/include/linux/nfs_fs.h
index 1cc25682b20b..fc01d5cb4cf1 100644
--- a/include/linux/nfs_fs.h
+++ b/include/linux/nfs_fs.h
@@ -59,11 +59,18 @@ struct nfs_lockowner {
         pid_t l_pid;
 };
 
+#define NFS_IO_INPROGRESS 0
+struct nfs_io_counter {
+        unsigned long flags;
+        atomic_t io_count;
+};
+
 struct nfs_lock_context {
         atomic_t count;
         struct list_head list;
         struct nfs_open_context *open_context;
         struct nfs_lockowner lockowner;
+        struct nfs_io_counter io_count;
 };
 
 struct nfs4_state;
@@ -77,6 +84,7 @@ struct nfs_open_context {
         unsigned long flags;
 #define NFS_CONTEXT_ERROR_WRITE         (0)
 #define NFS_CONTEXT_RESEND_WRITES       (1)
+#define NFS_CONTEXT_BAD                 (2)
         int error;
 
         struct list_head list;
diff --git a/include/linux/nfs_fs_sb.h b/include/linux/nfs_fs_sb.h
index 6c6ed153a9b4..3b7fa2abecca 100644
--- a/include/linux/nfs_fs_sb.h
+++ b/include/linux/nfs_fs_sb.h
@@ -40,6 +40,7 @@ struct nfs_client {
 #define NFS_CS_NORESVPORT       0               /* - use ephemeral src port */
 #define NFS_CS_DISCRTRY         1               /* - disconnect on RPC retry */
 #define NFS_CS_MIGRATION        2               /* - transparent state migr */
+#define NFS_CS_INFINITE_SLOTS   3               /* - don't limit TCP slots */
         struct sockaddr_storage cl_addr;        /* server identifier */
         size_t                  cl_addrlen;
         char *                  cl_hostname;    /* hostname of server */
@@ -197,5 +198,7 @@ struct nfs_server {
 #define NFS_CAP_MTIME           (1U << 13)
 #define NFS_CAP_POSIX_LOCK      (1U << 14)
 #define NFS_CAP_UIDGID_NOMAP    (1U << 15)
+#define NFS_CAP_STATEID_NFSV41  (1U << 16)
+#define NFS_CAP_ATOMIC_OPEN_V1  (1U << 17)
 
 #endif
diff --git a/include/linux/nfs_xdr.h b/include/linux/nfs_xdr.h
index 4b993d358dad..bdc100f66dfb 100644
--- a/include/linux/nfs_xdr.h
+++ b/include/linux/nfs_xdr.h
@@ -349,6 +349,7 @@ struct nfs_openargs {
         const u32 *             bitmask;
         const u32 *             open_bitmap;
         __u32                   claim;
+        enum createmode4        createmode;
 };
 
 struct nfs_openres {
@@ -486,6 +487,7 @@ struct nfs_readargs {
         struct nfs_fh *         fh;
         struct nfs_open_context *context;
         struct nfs_lock_context *lock_context;
+        nfs4_stateid            stateid;
         __u64                   offset;
         __u32                   count;
         unsigned int            pgbase;
@@ -507,6 +509,7 @@ struct nfs_writeargs {
         struct nfs_fh *         fh;
         struct nfs_open_context *context;
         struct nfs_lock_context *lock_context;
+        nfs4_stateid            stateid;
         __u64                   offset;
         __u32                   count;
         enum nfs3_stable_how    stable;
diff --git a/include/linux/sunrpc/clnt.h b/include/linux/sunrpc/clnt.h
index 2cf4ffaa3cd4..e7d492ce7c18 100644
--- a/include/linux/sunrpc/clnt.h
+++ b/include/linux/sunrpc/clnt.h
@@ -124,6 +124,7 @@ struct rpc_create_args {
 #define RPC_CLNT_CREATE_NOPING          (1UL << 4)
 #define RPC_CLNT_CREATE_DISCRTRY        (1UL << 5)
 #define RPC_CLNT_CREATE_QUIET           (1UL << 6)
+#define RPC_CLNT_CREATE_INFINITE_SLOTS  (1UL << 7)
 
 struct rpc_clnt *rpc_create(struct rpc_create_args *args);
 struct rpc_clnt *rpc_bind_new_program(struct rpc_clnt *,
diff --git a/include/linux/sunrpc/xprt.h b/include/linux/sunrpc/xprt.h
index 30834be03011..ff5392421cb2 100644
--- a/include/linux/sunrpc/xprt.h
+++ b/include/linux/sunrpc/xprt.h
@@ -255,6 +255,8 @@ static inline int bc_prealloc(struct rpc_rqst *req)
 }
 #endif /* CONFIG_SUNRPC_BACKCHANNEL */
 
+#define XPRT_CREATE_INFINITE_SLOTS      (1U)
+
 struct xprt_create {
         int                     ident;          /* XPRT_TRANSPORT identifier */
         struct net *            net;
@@ -263,6 +265,7 @@ struct xprt_create {
         size_t                  addrlen;
         const char              *servername;
         struct svc_xprt         *bc_xprt;       /* NFSv4.1 backchannel */
+        unsigned int            flags;
 };
 
 struct xprt_class {
@@ -279,6 +282,7 @@ struct xprt_class {
 struct rpc_xprt         *xprt_create_transport(struct xprt_create *args);
 void                    xprt_connect(struct rpc_task *task);
 void                    xprt_reserve(struct rpc_task *task);
+void                    xprt_retry_reserve(struct rpc_task *task);
 int                     xprt_reserve_xprt(struct rpc_xprt *xprt, struct rpc_task *task);
 int                     xprt_reserve_xprt_cong(struct rpc_xprt *xprt, struct rpc_task *task);
 void                    xprt_alloc_slot(struct rpc_xprt *xprt, struct rpc_task *task);
@@ -334,6 +338,7 @@ int			xs_swapper(struct rpc_xprt *xprt, int enable);
 #define XPRT_CLOSING            (6)
 #define XPRT_CONNECTION_ABORT   (7)
 #define XPRT_CONNECTION_CLOSE   (8)
+#define XPRT_CONGESTED          (9)
 
 static inline void xprt_set_connected(struct rpc_xprt *xprt)
 {