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
  ...

4 files changed, 69 insertions, 52 deletions

diff --git a/include/linux/sunrpc/clnt.h b/include/linux/sunrpc/clnt.h
index d9d5c5ad826c..3e9addc741c1 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 c4beb5775111..70df4f1d8847 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 8ea077db0099..ce3d1b132729 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 30b17b3bc1a9..b3ff9a815e6f 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)
 {