7 files changed, 149 insertions, 7 deletions

diff --git a/include/linux/inet.h b/include/linux/inet.h
index 1354080cf8cf..4cca05c9678e 100644
--- a/include/linux/inet.h
+++ b/include/linux/inet.h
@@ -44,6 +44,13 @@
 
 #include <linux/types.h>
 
+/*
+ * These mimic similar macros defined in user-space for inet_ntop(3).
+ * See /usr/include/netinet/in.h .
+ */
+#define INET_ADDRSTRLEN         (16)
+#define INET6_ADDRSTRLEN        (48)
+
 extern __be32 in_aton(const char *str);
 extern int in4_pton(const char *src, int srclen, u8 *dst, int delim, const char **end);
 extern int in6_pton(const char *src, int srclen, u8 *dst, int delim, const char **end);
diff --git a/include/linux/nfs_fs.h b/include/linux/nfs_fs.h
index 27d6a8d98cef..29d261918734 100644
--- a/include/linux/nfs_fs.h
+++ b/include/linux/nfs_fs.h
@@ -12,9 +12,19 @@
 #include <linux/magic.h>
 
 /* Default timeout values */
+#define NFS_DEF_UDP_TIMEO       (11)
+#define NFS_DEF_UDP_RETRANS     (3)
+#define NFS_DEF_TCP_TIMEO       (600)
+#define NFS_DEF_TCP_RETRANS     (2)
+
 #define NFS_MAX_UDP_TIMEOUT     (60*HZ)
 #define NFS_MAX_TCP_TIMEOUT     (600*HZ)
 
+#define NFS_DEF_ACREGMIN        (3)
+#define NFS_DEF_ACREGMAX        (60)
+#define NFS_DEF_ACDIRMIN        (30)
+#define NFS_DEF_ACDIRMAX        (60)
+
 /*
  * When flushing a cluster of dirty pages, there can be different
  * strategies:
diff --git a/include/linux/nfs_iostat.h b/include/linux/nfs_iostat.h
new file mode 100644
index 000000000000..1cb9a3fed2b3
--- /dev/null
+++ b/include/linux/nfs_iostat.h
@@ -0,0 +1,119 @@
+/*
+ *  User-space visible declarations for NFS client per-mount
+ *  point statistics
+ *
+ *  Copyright (C) 2005, 2006 Chuck Lever <cel@netapp.com>
+ *
+ *  NFS client per-mount statistics provide information about the
+ *  health of the NFS client and the health of each NFS mount point.
+ *  Generally these are not for detailed problem diagnosis, but
+ *  simply to indicate that there is a problem.
+ *
+ *  These counters are not meant to be human-readable, but are meant
+ *  to be integrated into system monitoring tools such as "sar" and
+ *  "iostat".  As such, the counters are sampled by the tools over
+ *  time, and are never zeroed after a file system is mounted.
+ *  Moving averages can be computed by the tools by taking the
+ *  difference between two instantaneous samples  and dividing that
+ *  by the time between the samples.
+ */
+
+#ifndef _LINUX_NFS_IOSTAT
+#define _LINUX_NFS_IOSTAT
+
+#define NFS_IOSTAT_VERS         "1.0"
+
+/*
+ * NFS byte counters
+ *
+ * 1.  SERVER - the number of payload bytes read from or written
+ *     to the server by the NFS client via an NFS READ or WRITE
+ *     request.
+ *
+ * 2.  NORMAL - the number of bytes read or written by applications
+ *     via the read(2) and write(2) system call interfaces.
+ *
+ * 3.  DIRECT - the number of bytes read or written from files
+ *     opened with the O_DIRECT flag.
+ *
+ * These counters give a view of the data throughput into and out
+ * of the NFS client.  Comparing the number of bytes requested by
+ * an application with the number of bytes the client requests from
+ * the server can provide an indication of client efficiency
+ * (per-op, cache hits, etc).
+ *
+ * These counters can also help characterize which access methods
+ * are in use.  DIRECT by itself shows whether there is any O_DIRECT
+ * traffic.  NORMAL + DIRECT shows how much data is going through
+ * the system call interface.  A large amount of SERVER traffic
+ * without much NORMAL or DIRECT traffic shows that applications
+ * are using mapped files.
+ *
+ * NFS page counters
+ *
+ * These count the number of pages read or written via nfs_readpage(),
+ * nfs_readpages(), or their write equivalents.
+ *
+ * NB: When adding new byte counters, please include the measured
+ * units in the name of each byte counter to help users of this
+ * interface determine what exactly is being counted.
+ */
+enum nfs_stat_bytecounters {
+        NFSIOS_NORMALREADBYTES = 0,
+        NFSIOS_NORMALWRITTENBYTES,
+        NFSIOS_DIRECTREADBYTES,
+        NFSIOS_DIRECTWRITTENBYTES,
+        NFSIOS_SERVERREADBYTES,
+        NFSIOS_SERVERWRITTENBYTES,
+        NFSIOS_READPAGES,
+        NFSIOS_WRITEPAGES,
+        __NFSIOS_BYTESMAX,
+};
+
+/*
+ * NFS event counters
+ *
+ * These counters provide a low-overhead way of monitoring client
+ * activity without enabling NFS trace debugging.  The counters
+ * show the rate at which VFS requests are made, and how often the
+ * client invalidates its data and attribute caches.  This allows
+ * system administrators to monitor such things as how close-to-open
+ * is working, and answer questions such as "why are there so many
+ * GETATTR requests on the wire?"
+ *
+ * They also count anamolous events such as short reads and writes,
+ * silly renames due to close-after-delete, and operations that
+ * change the size of a file (such operations can often be the
+ * source of data corruption if applications aren't using file
+ * locking properly).
+ */
+enum nfs_stat_eventcounters {
+        NFSIOS_INODEREVALIDATE = 0,
+        NFSIOS_DENTRYREVALIDATE,
+        NFSIOS_DATAINVALIDATE,
+        NFSIOS_ATTRINVALIDATE,
+        NFSIOS_VFSOPEN,
+        NFSIOS_VFSLOOKUP,
+        NFSIOS_VFSACCESS,
+        NFSIOS_VFSUPDATEPAGE,
+        NFSIOS_VFSREADPAGE,
+        NFSIOS_VFSREADPAGES,
+        NFSIOS_VFSWRITEPAGE,
+        NFSIOS_VFSWRITEPAGES,
+        NFSIOS_VFSGETDENTS,
+        NFSIOS_VFSSETATTR,
+        NFSIOS_VFSFLUSH,
+        NFSIOS_VFSFSYNC,
+        NFSIOS_VFSLOCK,
+        NFSIOS_VFSRELEASE,
+        NFSIOS_CONGESTIONWAIT,
+        NFSIOS_SETATTRTRUNC,
+        NFSIOS_EXTENDWRITE,
+        NFSIOS_SILLYRENAME,
+        NFSIOS_SHORTREAD,
+        NFSIOS_SHORTWRITE,
+        NFSIOS_DELAY,
+        __NFSIOS_COUNTSMAX,
+};
+
+#endif  /* _LINUX_NFS_IOSTAT */
diff --git a/include/linux/nfs_page.h b/include/linux/nfs_page.h
index a1676e19e491..3c60685d972b 100644
--- a/include/linux/nfs_page.h
+++ b/include/linux/nfs_page.h
@@ -27,9 +27,12 @@
 /*
  * Valid flags for a dirty buffer
  */
-#define PG_BUSY                 0
-#define PG_NEED_COMMIT          1
-#define PG_NEED_RESCHED         2
+enum {
+        PG_BUSY = 0,
+        PG_CLEAN,
+        PG_NEED_COMMIT,
+        PG_NEED_RESCHED,
+};
 
 struct nfs_inode;
 struct nfs_page {
diff --git a/include/linux/nfs_xdr.h b/include/linux/nfs_xdr.h
index 24263bb8e0be..8c77c11224d1 100644
--- a/include/linux/nfs_xdr.h
+++ b/include/linux/nfs_xdr.h
@@ -829,9 +829,8 @@ struct nfs_rpc_ops {
         int     (*write_done)  (struct rpc_task *, struct nfs_write_data *);
         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 *);
         int     (*lock)(struct file *, int, struct file_lock *);
+        int     (*lock_check_bounds)(const struct file_lock *);
         void    (*clear_acl_cache)(struct inode *);
 };
 
diff --git a/include/linux/sunrpc/clnt.h b/include/linux/sunrpc/clnt.h
index 6fff7f82ef12..e5bfe01ee305 100644
--- a/include/linux/sunrpc/clnt.h
+++ b/include/linux/sunrpc/clnt.h
@@ -42,7 +42,8 @@ struct rpc_clnt {
 
         unsigned int            cl_softrtry : 1,/* soft timeouts */
                                 cl_discrtry : 1,/* disconnect before retry */
-                                cl_autobind : 1;/* use getport() */
+                                cl_autobind : 1,/* use getport() */
+                                cl_chatty   : 1;/* be verbose */
 
         struct rpc_rtt *        cl_rtt;         /* RTO estimator data */
         const struct rpc_timeout *cl_timeout;   /* Timeout strategy */
@@ -114,6 +115,7 @@ struct rpc_create_args {
 #define RPC_CLNT_CREATE_NONPRIVPORT     (1UL << 3)
 #define RPC_CLNT_CREATE_NOPING          (1UL << 4)
 #define RPC_CLNT_CREATE_DISCRTRY        (1UL << 5)
+#define RPC_CLNT_CREATE_QUIET           (1UL << 6)
 
 struct rpc_clnt *rpc_create(struct rpc_create_args *args);
 struct rpc_clnt *rpc_bind_new_program(struct rpc_clnt *,
@@ -123,6 +125,9 @@ 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_v4_register(const u32 program, const u32 version,
+                                 const struct sockaddr *address,
+                                 const char *netid, int *result);
 int             rpcb_getport_sync(struct sockaddr_in *, u32, u32, int);
 void            rpcb_getport_async(struct rpc_task *);
 
diff --git a/include/linux/sunrpc/sched.h b/include/linux/sunrpc/sched.h
index d1a5c8c1a0f1..64981a2f1cae 100644
--- a/include/linux/sunrpc/sched.h
+++ b/include/linux/sunrpc/sched.h
@@ -135,7 +135,6 @@ struct rpc_task_setup {
 #define RPC_IS_SWAPPER(t)       ((t)->tk_flags & RPC_TASK_SWAPPER)
 #define RPC_DO_ROOTOVERRIDE(t)  ((t)->tk_flags & RPC_TASK_ROOTCREDS)
 #define RPC_ASSASSINATED(t)     ((t)->tk_flags & RPC_TASK_KILLED)
-#define RPC_DO_CALLBACK(t)      ((t)->tk_callback != NULL)
 #define RPC_IS_SOFT(t)          ((t)->tk_flags & RPC_TASK_SOFT)
 
 #define RPC_TASK_RUNNING        0