Merge git://git.linux-nfs.org/pub/linux/nfs-2.6

* git://git.linux-nfs.org/pub/linux/nfs-2.6: (118 commits)
  NFSv4: Iterate through all nfs_clients when the server recalls a delegation
  NFSv4: Deal more correctly with duplicate delegations
  NFS: Fix a potential race between umount and nfs_access_cache_shrinker()
  NFS: Add an asynchronous delegreturn operation for use in nfs_clear_inode
  nfs: convert NFS_*(inode) helpers to static inline
  nfs: obliterate NFS_FLAGS macro
  NFS: Address memory leaks in the NFS client mount option parser
  nfs4: allow nfsv4 acls on non-regular-files
  NFS: Optimise away the sigmask code in aio/dio reads and writes
  SUNRPC: Don't bother changing the sigmask for asynchronous RPC calls
  SUNRPC: rpcb_getport_sync() passes incorrect address size to rpc_create()
  SUNRPC: Clean up block comment preceding rpcb_getport_sync()
  SUNRPC: Use appropriate argument types in rpcb client
  SUNRPC: rpcb_getport_sync() should use built-in hostname generator
  SUNRPC: Clean up functions that free address_strings array
  NFS: NFS version number is unsigned
  NLM: Fix a bogus 'return' in nlmclnt_rpc_release
  NLM: Introduce an arguments structure for nlmclnt_init()
  NLM/NFS: Use cached nlm_host when calling nlmclnt_proc()
  NFS: Invoke nlmclnt_init during NFS mount processing
  ...

9 files changed, 168 insertions, 97 deletions

diff --git a/include/linux/lockd/bind.h b/include/linux/lockd/bind.h
index 6f1637c61e1..3d25bcd139d 100644
--- a/include/linux/lockd/bind.h
+++ b/include/linux/lockd/bind.h
@@ -33,9 +33,26 @@ struct nlmsvc_binding {
 extern struct nlmsvc_binding *	nlmsvc_ops;
 
 /*
+ * Similar to nfs_client_initdata, but without the NFS-specific
+ * rpc_ops field.
+ */
+struct nlmclnt_initdata {
+	const char		*hostname;
+	const struct sockaddr	*address;
+	size_t			addrlen;
+	unsigned short		protocol;
+	u32			nfs_version;
+};
+
+/*
  * Functions exported by the lockd module
  */
-extern int	nlmclnt_proc(struct inode *, int, struct file_lock *);
+
+extern struct nlm_host *nlmclnt_init(const struct nlmclnt_initdata *nlm_init);
+extern void	nlmclnt_done(struct nlm_host *host);
+
+extern int	nlmclnt_proc(struct nlm_host *host, int cmd,
+					struct file_lock *fl);
 extern int	lockd_up(int proto);
 extern void	lockd_down(void);
 
diff --git a/include/linux/nfs_fs.h b/include/linux/nfs_fs.h
index 2d15d4aac09..099ddb4481c 100644
--- a/include/linux/nfs_fs.h
+++ b/include/linux/nfs_fs.h
@@ -196,28 +196,67 @@ struct nfs_inode {
 #define NFS_INO_STALE		(2)		/* possible stale inode */
 #define NFS_INO_ACL_LRU_SET	(3)		/* Inode is on the LRU list */
 
-static inline struct nfs_inode *NFS_I(struct inode *inode)
+static inline struct nfs_inode *NFS_I(const struct inode *inode)
 {
 	return container_of(inode, struct nfs_inode, vfs_inode);
 }
-#define NFS_SB(s)		((struct nfs_server *)(s->s_fs_info))
 
-#define NFS_FH(inode)			(&NFS_I(inode)->fh)
-#define NFS_SERVER(inode)		(NFS_SB(inode->i_sb))
-#define NFS_CLIENT(inode)		(NFS_SERVER(inode)->client)
-#define NFS_PROTO(inode)		(NFS_SERVER(inode)->nfs_client->rpc_ops)
-#define NFS_COOKIEVERF(inode)		(NFS_I(inode)->cookieverf)
-#define NFS_MINATTRTIMEO(inode) \
-	(S_ISDIR(inode->i_mode)? NFS_SERVER(inode)->acdirmin \
-			       : NFS_SERVER(inode)->acregmin)
-#define NFS_MAXATTRTIMEO(inode) \
-	(S_ISDIR(inode->i_mode)? NFS_SERVER(inode)->acdirmax \
-			       : NFS_SERVER(inode)->acregmax)
+static inline struct nfs_server *NFS_SB(const struct super_block *s)
+{
+	return (struct nfs_server *)(s->s_fs_info);
+}
+
+static inline struct nfs_fh *NFS_FH(const struct inode *inode)
+{
+	return &NFS_I(inode)->fh;
+}
+
+static inline struct nfs_server *NFS_SERVER(const struct inode *inode)
+{
+	return NFS_SB(inode->i_sb);
+}
+
+static inline struct rpc_clnt *NFS_CLIENT(const struct inode *inode)
+{
+	return NFS_SERVER(inode)->client;
+}
+
+static inline const struct nfs_rpc_ops *NFS_PROTO(const struct inode *inode)
+{
+	return NFS_SERVER(inode)->nfs_client->rpc_ops;
+}
+
+static inline __be32 *NFS_COOKIEVERF(const struct inode *inode)
+{
+	return NFS_I(inode)->cookieverf;
+}
+
+static inline unsigned NFS_MINATTRTIMEO(const struct inode *inode)
+{
+	struct nfs_server *nfss = NFS_SERVER(inode);
+	return S_ISDIR(inode->i_mode) ? nfss->acdirmin : nfss->acregmin;
+}
 
-#define NFS_FLAGS(inode)		(NFS_I(inode)->flags)
-#define NFS_STALE(inode)		(test_bit(NFS_INO_STALE, &NFS_FLAGS(inode)))
+static inline unsigned NFS_MAXATTRTIMEO(const struct inode *inode)
+{
+	struct nfs_server *nfss = NFS_SERVER(inode);
+	return S_ISDIR(inode->i_mode) ? nfss->acdirmax : nfss->acregmax;
+}
 
-#define NFS_FILEID(inode)		(NFS_I(inode)->fileid)
+static inline int NFS_STALE(const struct inode *inode)
+{
+	return test_bit(NFS_INO_STALE, &NFS_I(inode)->flags);
+}
+
+static inline __u64 NFS_FILEID(const struct inode *inode)
+{
+	return NFS_I(inode)->fileid;
+}
+
+static inline void set_nfs_fileid(struct inode *inode, __u64 fileid)
+{
+	NFS_I(inode)->fileid = fileid;
+}
 
 static inline void nfs_mark_for_revalidate(struct inode *inode)
 {
@@ -237,7 +276,7 @@ static inline int nfs_server_capable(struct inode *inode, int cap)
 
 static inline int NFS_USE_READDIRPLUS(struct inode *inode)
 {
-	return test_bit(NFS_INO_ADVISE_RDPLUS, &NFS_FLAGS(inode));
+	return test_bit(NFS_INO_ADVISE_RDPLUS, &NFS_I(inode)->flags);
 }
 
 static inline void nfs_set_verifier(struct dentry * dentry, unsigned long verf)
@@ -366,6 +405,7 @@ extern const struct inode_operations nfs3_dir_inode_operations;
 extern const struct file_operations nfs_dir_operations;
 extern struct dentry_operations nfs_dentry_operations;
 
+extern void nfs_force_lookup_revalidate(struct inode *dir);
 extern int nfs_instantiate(struct dentry *dentry, struct nfs_fh *fh, struct nfs_fattr *fattr);
 extern int nfs_may_open(struct inode *inode, struct rpc_cred *cred, int openflags);
 extern void nfs_access_zap_cache(struct inode *inode);
diff --git a/include/linux/nfs_fs_sb.h b/include/linux/nfs_fs_sb.h
index 0cac49bc095..3423c6761bf 100644
--- a/include/linux/nfs_fs_sb.h
+++ b/include/linux/nfs_fs_sb.h
@@ -3,8 +3,12 @@
 
 #include <linux/list.h>
 #include <linux/backing-dev.h>
+#include <linux/wait.h>
+
+#include <asm/atomic.h>
 
 struct nfs_iostats;
+struct nlm_host;
 
 /*
  * The nfs_client identifies our client state to the server.
@@ -14,20 +18,19 @@ struct nfs_client {
 	int			cl_cons_state;	/* current construction state (-ve: init error) */
 #define NFS_CS_READY		0		/* ready to be used */
 #define NFS_CS_INITING		1		/* busy initialising */
-	int			cl_nfsversion;	/* NFS protocol version */
 	unsigned long		cl_res_state;	/* NFS resources state */
 #define NFS_CS_CALLBACK		1		/* - callback started */
 #define NFS_CS_IDMAP		2		/* - idmap started */
 #define NFS_CS_RENEWD		3		/* - renewd started */
-	struct sockaddr_in	cl_addr;	/* server identifier */
+	struct sockaddr_storage	cl_addr;	/* server identifier */
+	size_t			cl_addrlen;
 	char *			cl_hostname;	/* hostname of server */
 	struct list_head	cl_share_link;	/* link in global client list */
 	struct list_head	cl_superblocks;	/* List of nfs_server structs */
 
 	struct rpc_clnt *	cl_rpcclient;
 	const struct nfs_rpc_ops *rpc_ops;	/* NFS protocol vector */
-	unsigned long		retrans_timeo;	/* retransmit timeout */
-	unsigned int		retrans_count;	/* number of retransmit tries */
+	int			cl_proto;	/* Network transport protocol */
 
 #ifdef CONFIG_NFS_V4
 	u64			cl_clientid;	/* constant */
@@ -62,7 +65,7 @@ struct nfs_client {
 	/* Our own IP address, as a null-terminated string.
 	 * This is used to generate the clientid, and the callback address.
 	 */
-	char			cl_ipaddr[16];
+	char			cl_ipaddr[48];
 	unsigned char		cl_id_uniquifier;
 #endif
 };
@@ -78,6 +81,7 @@ struct nfs_server {
 	struct list_head	master_link;	/* link in master servers list */
 	struct rpc_clnt *	client;		/* RPC client handle */
 	struct rpc_clnt *	client_acl;	/* ACL RPC client handle */
+	struct nlm_host		*nlm_host;	/* NLM client handle */
 	struct nfs_iostats *	io_stats;	/* I/O statistics */
 	struct backing_dev_info	backing_dev_info;
 	atomic_long_t		writeback;	/* number of writeback pages */
@@ -110,6 +114,9 @@ struct nfs_server {
 						   filesystem */
 #endif
 	void (*destroy)(struct nfs_server *);
+
+	atomic_t active; /* Keep trace of any activity to this server */
+	wait_queue_head_t active_wq;  /* Wait for any activity to stop  */
 };
 
 /* Server capabilities */
diff --git a/include/linux/nfs_page.h b/include/linux/nfs_page.h
index 30dbcc185e6..a1676e19e49 100644
--- a/include/linux/nfs_page.h
+++ b/include/linux/nfs_page.h
@@ -83,6 +83,7 @@ extern	void nfs_pageio_complete(struct nfs_pageio_descriptor *desc);
 extern	void nfs_pageio_cond_complete(struct nfs_pageio_descriptor *, pgoff_t);
 extern  int nfs_wait_on_request(struct nfs_page *);
 extern	void nfs_unlock_request(struct nfs_page *req);
+extern	int nfs_set_page_tag_locked(struct nfs_page *req);
 extern  void nfs_clear_page_tag_locked(struct nfs_page *req);
 
 
@@ -95,18 +96,6 @@ nfs_lock_request_dontget(struct nfs_page *req)
 	return !test_and_set_bit(PG_BUSY, &req->wb_flags);
 }
 
-/*
- * Lock the page of an asynchronous request and take a reference
- */
-static inline int
-nfs_lock_request(struct nfs_page *req)
-{
-	if (test_and_set_bit(PG_BUSY, &req->wb_flags))
-		return 0;
-	kref_get(&req->wb_kref);
-	return 1;
-}
-
 /**
  * nfs_list_add_request - Insert a request into a list
  * @req: request
diff --git a/include/linux/nfs_xdr.h b/include/linux/nfs_xdr.h
index daab252f2e5..f301d0b8bab 100644
--- a/include/linux/nfs_xdr.h
+++ b/include/linux/nfs_xdr.h
@@ -666,16 +666,17 @@ struct nfs4_rename_res {
 	struct nfs_fattr *		new_fattr;
 };
 
+#define NFS4_SETCLIENTID_NAMELEN	(56)
 struct nfs4_setclientid {
-	const nfs4_verifier *		sc_verifier;      /* request */
+	const nfs4_verifier *		sc_verifier;
 	unsigned int			sc_name_len;
-	char				sc_name[48];	  /* request */
-	u32				sc_prog;          /* request */
+	char				sc_name[NFS4_SETCLIENTID_NAMELEN];
+	u32				sc_prog;
 	unsigned int			sc_netid_len;
-	char				sc_netid[4];	  /* request */
+	char				sc_netid[RPCBIND_MAXNETIDLEN];
 	unsigned int			sc_uaddr_len;
-	char				sc_uaddr[24];     /* request */
-	u32				sc_cb_ident;      /* request */
+	char				sc_uaddr[RPCBIND_MAXUADDRLEN];
+	u32				sc_cb_ident;
 };
 
 struct nfs4_statfs_arg {
@@ -773,7 +774,7 @@ struct nfs_access_entry;
  * RPC procedure vector for NFSv2/NFSv3 demuxing
  */
 struct nfs_rpc_ops {
-	int	version;		/* Protocol version */
+	u32	version;		/* Protocol version */
 	struct dentry_operations *dentry_ops;
 	const struct inode_operations *dir_inode_ops;
 	const struct inode_operations *file_inode_ops;
@@ -816,11 +817,11 @@ struct nfs_rpc_ops {
 			     struct nfs_pathconf *);
 	int	(*set_capabilities)(struct nfs_server *, struct nfs_fh *);
 	__be32 *(*decode_dirent)(__be32 *, struct nfs_entry *, int plus);
-	void	(*read_setup)   (struct nfs_read_data *);
+	void	(*read_setup)   (struct nfs_read_data *, struct rpc_message *);
 	int	(*read_done)  (struct rpc_task *, struct nfs_read_data *);
-	void	(*write_setup)  (struct nfs_write_data *, int how);
+	void	(*write_setup)  (struct nfs_write_data *, struct rpc_message *);
 	int	(*write_done)  (struct rpc_task *, struct nfs_write_data *);
-	void	(*commit_setup) (struct nfs_write_data *, int how);
+	void	(*commit_setup) (struct nfs_write_data *, struct rpc_message *);
 	int	(*commit_done) (struct rpc_task *, struct nfs_write_data *);
 	int	(*file_open)   (struct inode *, struct file *);
 	int	(*file_release) (struct inode *, struct file *);
diff --git a/include/linux/sunrpc/clnt.h b/include/linux/sunrpc/clnt.h
index d9d5c5ad826..3e9addc741c 100644
--- a/include/linux/sunrpc/clnt.h
+++ b/include/linux/sunrpc/clnt.h
@@ -46,6 +46,7 @@ struct rpc_clnt {
 				cl_autobind : 1;/* use getport() */
 
 	struct rpc_rtt *	cl_rtt;		/* RTO estimator data */
+	const struct rpc_timeout *cl_timeout;	/* Timeout strategy */
 
 	int			cl_nodelen;	/* nodename length */
 	char 			cl_nodename[UNX_MAXNODENAME];
@@ -54,6 +55,7 @@ struct rpc_clnt {
 	struct dentry *		cl_dentry;	/* inode */
 	struct rpc_clnt *	cl_parent;	/* Points to parent of clones */
 	struct rpc_rtt		cl_rtt_default;
+	struct rpc_timeout	cl_timeout_default;
 	struct rpc_program *	cl_program;
 	char			cl_inline_name[32];
 };
@@ -99,7 +101,7 @@ struct rpc_create_args {
 	struct sockaddr		*address;
 	size_t			addrsize;
 	struct sockaddr		*saddress;
-	struct rpc_timeout	*timeout;
+	const struct rpc_timeout *timeout;
 	char			*servername;
 	struct rpc_program	*program;
 	u32			version;
@@ -123,11 +125,10 @@ void		rpc_shutdown_client(struct rpc_clnt *);
 void		rpc_release_client(struct rpc_clnt *);
 
 int		rpcb_register(u32, u32, int, unsigned short, int *);
-int		rpcb_getport_sync(struct sockaddr_in *, __u32, __u32, int);
+int		rpcb_getport_sync(struct sockaddr_in *, u32, u32, int);
 void		rpcb_getport_async(struct rpc_task *);
 
-void		rpc_call_setup(struct rpc_task *, struct rpc_message *, int);
-
+void		rpc_call_start(struct rpc_task *);
 int		rpc_call_async(struct rpc_clnt *clnt, struct rpc_message *msg,
 			       int flags, const struct rpc_call_ops *tk_ops,
 			       void *calldata);
@@ -142,7 +143,7 @@ void		rpc_setbufsize(struct rpc_clnt *, unsigned int, unsigned int);
 size_t		rpc_max_payload(struct rpc_clnt *);
 void		rpc_force_rebind(struct rpc_clnt *);
 size_t		rpc_peeraddr(struct rpc_clnt *, struct sockaddr *, size_t);
-char *		rpc_peeraddr2str(struct rpc_clnt *, enum rpc_display_format_t);
+const char	*rpc_peeraddr2str(struct rpc_clnt *, enum rpc_display_format_t);
 
 #endif /* __KERNEL__ */
 #endif /* _LINUX_SUNRPC_CLNT_H */
diff --git a/include/linux/sunrpc/msg_prot.h b/include/linux/sunrpc/msg_prot.h
index c4beb577511..70df4f1d884 100644
--- a/include/linux/sunrpc/msg_prot.h
+++ b/include/linux/sunrpc/msg_prot.h
@@ -152,5 +152,44 @@ typedef __be32	rpc_fraghdr;
  */
 #define RPCBIND_MAXNETIDLEN	(4u)
 
+/*
+ * Universal addresses are introduced in RFC 1833 and further spelled
+ * out in RFC 3530.  RPCBIND_MAXUADDRLEN defines a maximum byte length
+ * of a universal address for use in allocating buffers and character
+ * arrays.
+ *
+ * Quoting RFC 3530, section 2.2:
+ *
+ * For TCP over IPv4 and for UDP over IPv4, the format of r_addr is the
+ * US-ASCII string:
+ *
+ *	h1.h2.h3.h4.p1.p2
+ *
+ * The prefix, "h1.h2.h3.h4", is the standard textual form for
+ * representing an IPv4 address, which is always four octets long.
+ * Assuming big-endian ordering, h1, h2, h3, and h4, are respectively,
+ * the first through fourth octets each converted to ASCII-decimal.
+ * Assuming big-endian ordering, p1 and p2 are, respectively, the first
+ * and second octets each converted to ASCII-decimal.  For example, if a
+ * host, in big-endian order, has an address of 0x0A010307 and there is
+ * a service listening on, in big endian order, port 0x020F (decimal
+ * 527), then the complete universal address is "10.1.3.7.2.15".
+ *
+ * ...
+ *
+ * For TCP over IPv6 and for UDP over IPv6, the format of r_addr is the
+ * US-ASCII string:
+ *
+ *	x1:x2:x3:x4:x5:x6:x7:x8.p1.p2
+ *
+ * The suffix "p1.p2" is the service port, and is computed the same way
+ * as with universal addresses for TCP and UDP over IPv4.  The prefix,
+ * "x1:x2:x3:x4:x5:x6:x7:x8", is the standard textual form for
+ * representing an IPv6 address as defined in Section 2.2 of [RFC2373].
+ * Additionally, the two alternative forms specified in Section 2.2 of
+ * [RFC2373] are also acceptable.
+ */
+#define RPCBIND_MAXUADDRLEN	(56u)
+
 #endif /* __KERNEL__ */
 #endif /* _LINUX_SUNRPC_MSGPROT_H_ */
diff --git a/include/linux/sunrpc/sched.h b/include/linux/sunrpc/sched.h
index 8ea077db009..ce3d1b13272 100644
--- a/include/linux/sunrpc/sched.h
+++ b/include/linux/sunrpc/sched.h
@@ -56,8 +56,6 @@ struct rpc_task {
 	__u8			tk_garb_retry;
 	__u8			tk_cred_retry;
 
-	unsigned long		tk_cookie;	/* Cookie for batching tasks */
-
 	/*
 	 * timeout_fn   to be executed by timer bottom half
 	 * callback	to be executed after waking up
@@ -78,7 +76,6 @@ struct rpc_task {
 	struct timer_list	tk_timer;	/* kernel timer */
 	unsigned long		tk_timeout;	/* timeout for rpc_sleep() */
 	unsigned short		tk_flags;	/* misc flags */
-	unsigned char		tk_priority : 2;/* Task priority */
 	unsigned long		tk_runstate;	/* Task run status */
 	struct workqueue_struct	*tk_workqueue;	/* Normally rpciod, but could
 						 * be any workqueue
@@ -94,6 +91,9 @@ struct rpc_task {
 	unsigned long		tk_start;	/* RPC task init timestamp */
 	long			tk_rtt;		/* round-trip time (jiffies) */
 
+	pid_t			tk_owner;	/* Process id for batching tasks */
+	unsigned char		tk_priority : 2;/* Task priority */
+
 #ifdef RPC_DEBUG
 	unsigned short		tk_pid;		/* debugging aid */
 #endif
@@ -117,6 +117,15 @@ struct rpc_call_ops {
 	void (*rpc_release)(void *);
 };
 
+struct rpc_task_setup {
+	struct rpc_task *task;
+	struct rpc_clnt *rpc_client;
+	const struct rpc_message *rpc_message;
+	const struct rpc_call_ops *callback_ops;
+	void *callback_data;
+	unsigned short flags;
+	signed char priority;
+};
 
 /*
  * RPC task flags
@@ -180,10 +189,10 @@ struct rpc_call_ops {
  * Note: if you change these, you must also change
  * the task initialization definitions below.
  */
-#define RPC_PRIORITY_LOW	0
-#define RPC_PRIORITY_NORMAL	1
-#define RPC_PRIORITY_HIGH	2
-#define RPC_NR_PRIORITY		(RPC_PRIORITY_HIGH+1)
+#define RPC_PRIORITY_LOW	(-1)
+#define RPC_PRIORITY_NORMAL	(0)
+#define RPC_PRIORITY_HIGH	(1)
+#define RPC_NR_PRIORITY		(1 + RPC_PRIORITY_HIGH - RPC_PRIORITY_LOW)
 
 /*
  * RPC synchronization objects
@@ -191,7 +200,7 @@ struct rpc_call_ops {
 struct rpc_wait_queue {
 	spinlock_t		lock;
 	struct list_head	tasks[RPC_NR_PRIORITY];	/* task queue for each priority level */
-	unsigned long		cookie;			/* cookie of last task serviced */
+	pid_t			owner;			/* process id of last task serviced */
 	unsigned char		maxpriority;		/* maximum priority (0 if queue is not a priority queue) */
 	unsigned char		priority;		/* current priority */
 	unsigned char		count;			/* # task groups remaining serviced so far */
@@ -208,41 +217,13 @@ struct rpc_wait_queue {
  * performance of NFS operations such as read/write.
  */
 #define RPC_BATCH_COUNT			16
-
-#ifndef RPC_DEBUG
-# define RPC_WAITQ_INIT(var,qname) { \
-		.lock = __SPIN_LOCK_UNLOCKED(var.lock), \
-		.tasks = { \
-			[0] = LIST_HEAD_INIT(var.tasks[0]), \
-			[1] = LIST_HEAD_INIT(var.tasks[1]), \
-			[2] = LIST_HEAD_INIT(var.tasks[2]), \
-		}, \
-	}
-#else
-# define RPC_WAITQ_INIT(var,qname) { \
-		.lock = __SPIN_LOCK_UNLOCKED(var.lock), \
-		.tasks = { \
-			[0] = LIST_HEAD_INIT(var.tasks[0]), \
-			[1] = LIST_HEAD_INIT(var.tasks[1]), \
-			[2] = LIST_HEAD_INIT(var.tasks[2]), \
-		}, \
-		.name = qname, \
-	}
-#endif
-# define RPC_WAITQ(var,qname)      struct rpc_wait_queue var = RPC_WAITQ_INIT(var,qname)
-
 #define RPC_IS_PRIORITY(q)		((q)->maxpriority > 0)
 
 /*
  * Function prototypes
  */
-struct rpc_task *rpc_new_task(struct rpc_clnt *, int flags,
-				const struct rpc_call_ops *ops, void *data);
-struct rpc_task *rpc_run_task(struct rpc_clnt *clnt, int flags,
-				const struct rpc_call_ops *ops, void *data);
-void		rpc_init_task(struct rpc_task *task, struct rpc_clnt *clnt,
-				int flags, const struct rpc_call_ops *ops,
-				void *data);
+struct rpc_task *rpc_new_task(const struct rpc_task_setup *);
+struct rpc_task *rpc_run_task(const struct rpc_task_setup *);
 void		rpc_put_task(struct rpc_task *);
 void		rpc_exit_task(struct rpc_task *);
 void		rpc_release_calldata(const struct rpc_call_ops *, void *);
diff --git a/include/linux/sunrpc/xprt.h b/include/linux/sunrpc/xprt.h
index 30b17b3bc1a..b3ff9a815e6 100644
--- a/include/linux/sunrpc/xprt.h
+++ b/include/linux/sunrpc/xprt.h
@@ -120,7 +120,7 @@ struct rpc_xprt {
 	struct kref		kref;		/* Reference count */
 	struct rpc_xprt_ops *	ops;		/* transport methods */
 
-	struct rpc_timeout	timeout;	/* timeout parms */
+	const struct rpc_timeout *timeout;	/* timeout parms */
 	struct sockaddr_storage	addr;		/* server address */
 	size_t			addrlen;	/* size of server address */
 	int			prot;		/* IP protocol */
@@ -183,7 +183,7 @@ struct rpc_xprt {
 					bklog_u;	/* backlog queue utilization */
 	} stat;
 
-	char *			address_strings[RPC_DISPLAY_MAX];
+	const char		*address_strings[RPC_DISPLAY_MAX];
 };
 
 struct xprt_create {
@@ -191,7 +191,6 @@ struct xprt_create {
 	struct sockaddr *	srcaddr;	/* optional local address */
 	struct sockaddr *	dstaddr;	/* remote peer address */
 	size_t			addrlen;
-	struct rpc_timeout *	timeout;	/* optional timeout parameters */
 };
 
 struct xprt_class {
@@ -203,11 +202,6 @@ struct xprt_class {
 };
 
 /*
- * Transport operations used by ULPs
- */
-void			xprt_set_timeout(struct rpc_timeout *to, unsigned int retr, unsigned long incr);
-
-/*
  * Generic internal transport functions
  */
 struct rpc_xprt		*xprt_create_transport(struct xprt_create *args);
@@ -245,7 +239,8 @@ void			xprt_adjust_cwnd(struct rpc_task *task, int result);
 struct rpc_rqst *	xprt_lookup_rqst(struct rpc_xprt *xprt, __be32 xid);
 void			xprt_complete_rqst(struct rpc_task *task, int copied);
 void			xprt_release_rqst_cong(struct rpc_task *task);
-void			xprt_disconnect(struct rpc_xprt *xprt);
+void			xprt_disconnect_done(struct rpc_xprt *xprt);
+void			xprt_force_disconnect(struct rpc_xprt *xprt);
 
 /*
  * Reserved bit positions in xprt->state
@@ -256,6 +251,7 @@ void			xprt_disconnect(struct rpc_xprt *xprt);
 #define XPRT_CLOSE_WAIT		(3)
 #define XPRT_BOUND		(4)
 #define XPRT_BINDING		(5)
+#define XPRT_CLOSING		(6)
 
 static inline void xprt_set_connected(struct rpc_xprt *xprt)
 {