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

* git://git.linux-nfs.org/pub/linux/nfs-2.6: (103 commits)
  SUNRPC,RPCSEC_GSS: spkm3--fix config dependencies
  SUNRPC,RPCSEC_GSS: spkm3: import contexts using NID_cast5_cbc
  LOCKD: Make nlmsvc_traverse_shares return void
  LOCKD: nlmsvc_traverse_blocks return is unused
  SUNRPC,RPCSEC_GSS: fix krb5 sequence numbers.
  NFSv4: Dont list system.nfs4_acl for filesystems that don't support it.
  SUNRPC,RPCSEC_GSS: remove unnecessary kmalloc of a checksum
  SUNRPC: Ensure rpc_call_async() always calls tk_ops->rpc_release()
  SUNRPC: Fix memory barriers for req->rq_received
  NFS: Fix a race in nfs_sync_inode()
  NFS: Clean up nfs_flush_list()
  NFS: Fix a race with PG_private and nfs_release_page()
  NFSv4: Ensure the callback daemon flushes signals
  SUNRPC: Fix a 'Busy inodes' error in rpc_pipefs
  NFS, NLM: Allow blocking locks to respect signals
  NFS: Make nfs_fhget() return appropriate error values
  NFSv4: Fix an oops in nfs4_fill_super
  lockd: blocks should hold a reference to the nlm_file
  NFSv4: SETCLIENTID_CONFIRM should handle NFS4ERR_DELAY/NFS4ERR_RESOURCE
  NFSv4: Send the delegation stateid for SETATTR calls
  ...

14 files changed, 153 insertions, 128 deletions

diff --git a/include/linux/fs.h b/include/linux/fs.h
index 21e8cf7..5adf32b 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -678,7 +678,6 @@ extern spinlock_t files_lock;
 #define FL_POSIX	1
 #define FL_FLOCK	2
 #define FL_ACCESS	8	/* not trying to lock, just looking */
-#define FL_LOCKD	16	/* lock held by rpc.lockd */
 #define FL_LEASE	32	/* lease held on this file */
 #define FL_SLEEP	128	/* A blocking lock */
 
@@ -742,8 +741,6 @@ struct file_lock {
 #define OFFT_OFFSET_MAX	INT_LIMIT(off_t)
 #endif
 
-extern struct list_head file_lock_list;
-
 #include <linux/fcntl.h>
 
 extern int fcntl_getlk(struct file *, struct flock __user *);
@@ -765,10 +762,9 @@ extern void locks_init_lock(struct file_lock *);
 extern void locks_copy_lock(struct file_lock *, struct file_lock *);
 extern void locks_remove_posix(struct file *, fl_owner_t);
 extern void locks_remove_flock(struct file *);
-extern struct file_lock *posix_test_lock(struct file *, struct file_lock *);
+extern int posix_test_lock(struct file *, struct file_lock *, struct file_lock *);
 extern int posix_lock_file(struct file *, struct file_lock *);
 extern int posix_lock_file_wait(struct file *, struct file_lock *);
-extern void posix_block_lock(struct file_lock *, struct file_lock *);
 extern int posix_unblock_lock(struct file *, struct file_lock *);
 extern int posix_locks_deadlock(struct file_lock *, struct file_lock *);
 extern int flock_lock_file_wait(struct file *filp, struct file_lock *fl);
@@ -1097,6 +1093,7 @@ struct super_operations {
 	void (*umount_begin) (struct super_block *);
 
 	int (*show_options)(struct seq_file *, struct vfsmount *);
+	int (*show_stats)(struct seq_file *, struct vfsmount *);
 
 	ssize_t (*quota_read)(struct super_block *, int, char *, size_t, loff_t);
 	ssize_t (*quota_write)(struct super_block *, int, const char *, size_t, loff_t);
diff --git a/include/linux/lockd/lockd.h b/include/linux/lockd/lockd.h
index ef21ed2..995f89d 100644
--- a/include/linux/lockd/lockd.h
+++ b/include/linux/lockd/lockd.h
@@ -14,6 +14,7 @@
 #include <linux/config.h>
 #include <linux/in.h>
 #include <linux/fs.h>
+#include <linux/kref.h>
 #include <linux/utsname.h>
 #include <linux/nfsd/nfsfh.h>
 #include <linux/lockd/bind.h>
@@ -58,6 +59,8 @@ struct nlm_host {
 	unsigned long		h_expires;	/* eligible for GC */
 	struct list_head	h_lockowners;	/* Lockowners for the client */
 	spinlock_t		h_lock;
+	struct list_head	h_granted;	/* Locks in GRANTED state */
+	struct list_head	h_reclaim;	/* Locks in RECLAIM state */
 };
 
 /*
@@ -83,9 +86,9 @@ struct nlm_rqst {
 	struct nlm_host *	a_host;		/* host handle */
 	struct nlm_args		a_args;		/* arguments */
 	struct nlm_res		a_res;		/* result */
-	struct nlm_wait *	a_block;
+	struct nlm_block *	a_block;
 	unsigned int		a_retries;	/* Retry count */
-	char			a_owner[NLMCLNT_OHSIZE];
+	u8			a_owner[NLMCLNT_OHSIZE];
 };
 
 /*
@@ -110,16 +113,16 @@ struct nlm_file {
  */
 #define NLM_NEVER		(~(unsigned long) 0)
 struct nlm_block {
+	struct kref		b_count;	/* Reference count */
 	struct nlm_block *	b_next;		/* linked list (all blocks) */
 	struct nlm_block *	b_fnext;	/* linked list (per file) */
-	struct nlm_rqst		b_call;		/* RPC args & callback info */
+	struct nlm_rqst	*	b_call;		/* RPC args & callback info */
 	struct svc_serv *	b_daemon;	/* NLM service */
 	struct nlm_host *	b_host;		/* host handle for RPC clnt */
 	unsigned long		b_when;		/* next re-xmit */
 	unsigned int		b_id;		/* block id */
 	unsigned char		b_queued;	/* re-queued */
 	unsigned char		b_granted;	/* VFS granted lock */
-	unsigned char		b_incall;	/* doing callback */
 	unsigned char		b_done;		/* callback complete */
 	struct nlm_file *	b_file;		/* file in question */
 };
@@ -145,15 +148,16 @@ extern unsigned long		nlmsvc_timeout;
 /*
  * Lockd client functions
  */
-struct nlm_rqst * nlmclnt_alloc_call(void);
-int		  nlmclnt_prepare_block(struct nlm_rqst *req, struct nlm_host *host, struct file_lock *fl);
-void		  nlmclnt_finish_block(struct nlm_rqst *req);
-long		  nlmclnt_block(struct nlm_rqst *req, long timeout);
+struct nlm_rqst * nlm_alloc_call(struct nlm_host *host);
+void		  nlm_release_call(struct nlm_rqst *);
+int		  nlm_async_call(struct nlm_rqst *, u32, const struct rpc_call_ops *);
+int		  nlm_async_reply(struct nlm_rqst *, u32, const struct rpc_call_ops *);
+struct nlm_wait * nlmclnt_prepare_block(struct nlm_host *host, struct file_lock *fl);
+void		  nlmclnt_finish_block(struct nlm_wait *block);
+int		  nlmclnt_block(struct nlm_wait *block, struct nlm_rqst *req, long timeout);
 u32		  nlmclnt_grant(const struct sockaddr_in *addr, const struct nlm_lock *);
 void		  nlmclnt_recovery(struct nlm_host *, u32);
 int		  nlmclnt_reclaim(struct nlm_host *, struct file_lock *);
-int		  nlmclnt_setgrantargs(struct nlm_rqst *, struct nlm_lock *);
-void		  nlmclnt_freegrantargs(struct nlm_rqst *);
 
 /*
  * Host cache
@@ -172,7 +176,6 @@ extern struct nlm_host *nlm_find_client(void);
 /*
  * Server-side lock handling
  */
-int		  nlmsvc_async_call(struct nlm_rqst *, u32, const struct rpc_call_ops *);
 u32		  nlmsvc_lock(struct svc_rqst *, struct nlm_file *,
 					struct nlm_lock *, int, struct nlm_cookie *);
 u32		  nlmsvc_unlock(struct nlm_file *, struct nlm_lock *);
@@ -180,7 +183,7 @@ u32		  nlmsvc_testlock(struct nlm_file *, struct nlm_lock *,
 					struct nlm_lock *);
 u32		  nlmsvc_cancel_blocked(struct nlm_file *, struct nlm_lock *);
 unsigned long	  nlmsvc_retry_blocked(void);
-int		  nlmsvc_traverse_blocks(struct nlm_host *, struct nlm_file *,
+void		  nlmsvc_traverse_blocks(struct nlm_host *, struct nlm_file *,
 					int action);
 void	  nlmsvc_grant_reply(struct svc_rqst *, struct nlm_cookie *, u32);
 
diff --git a/include/linux/lockd/share.h b/include/linux/lockd/share.h
index 5d8aa32..c75a424 100644
--- a/include/linux/lockd/share.h
+++ b/include/linux/lockd/share.h
@@ -25,6 +25,6 @@ u32	nlmsvc_share_file(struct nlm_host *, struct nlm_file *,
 					       struct nlm_args *);
 u32	nlmsvc_unshare_file(struct nlm_host *, struct nlm_file *,
 					       struct nlm_args *);
-int	nlmsvc_traverse_shares(struct nlm_host *, struct nlm_file *, int);
+void	nlmsvc_traverse_shares(struct nlm_host *, struct nlm_file *, int);
 
 #endif /* LINUX_LOCKD_SHARE_H */
diff --git a/include/linux/lockd/xdr.h b/include/linux/lockd/xdr.h
index d7a5cc4..bb0a0f1 100644
--- a/include/linux/lockd/xdr.h
+++ b/include/linux/lockd/xdr.h
@@ -28,6 +28,7 @@ struct nlm_lock {
 	int			len; 	/* length of "caller" */
 	struct nfs_fh		fh;
 	struct xdr_netobj	oh;
+	u32			svid;
 	struct file_lock	fl;
 };
 
diff --git a/include/linux/nfs_fs.h b/include/linux/nfs_fs.h
index b4dc6e2..cbebd7d 100644
--- a/include/linux/nfs_fs.h
+++ b/include/linux/nfs_fs.h
@@ -56,9 +56,7 @@
  * When flushing a cluster of dirty pages, there can be different
  * strategies:
  */
-#define FLUSH_AGING		0	/* only flush old buffers */
 #define FLUSH_SYNC		1	/* file being synced, or contention */
-#define FLUSH_WAIT		2	/* wait for completion */
 #define FLUSH_STABLE		4	/* commit to stable storage */
 #define FLUSH_LOWPRI		8	/* low priority background flush */
 #define FLUSH_HIGHPRI		16	/* high priority memory reclaim flush */
@@ -78,6 +76,7 @@ struct nfs_access_entry {
 struct nfs4_state;
 struct nfs_open_context {
 	atomic_t count;
+	struct vfsmount *vfsmnt;
 	struct dentry *dentry;
 	struct rpc_cred *cred;
 	struct nfs4_state *state;
@@ -118,8 +117,7 @@ struct nfs_inode {
 	unsigned long		cache_validity;		/* bit mask */
 
 	/*
-	 * read_cache_jiffies is when we started read-caching this inode,
-	 * and read_cache_mtime is the mtime of the inode at that time.
+	 * read_cache_jiffies is when we started read-caching this inode.
 	 * attrtimeo is for how long the cached information is assumed
 	 * to be valid. A successful attribute revalidation doubles
 	 * attrtimeo (up to acregmax/acdirmax), a failure resets it to
@@ -128,11 +126,6 @@ struct nfs_inode {
 	 * We need to revalidate the cached attrs for this inode if
 	 *
 	 *	jiffies - read_cache_jiffies > attrtimeo
-	 *
-	 * and invalidate any cached data/flush out any dirty pages if
-	 * we find that
-	 *
-	 *	mtime != read_cache_mtime
 	 */
 	unsigned long		read_cache_jiffies;
 	unsigned long		attrtimeo;
@@ -311,12 +304,9 @@ extern void nfs_begin_attr_update(struct inode *);
 extern void nfs_end_attr_update(struct inode *);
 extern void nfs_begin_data_update(struct inode *);
 extern void nfs_end_data_update(struct inode *);
-extern struct nfs_open_context *alloc_nfs_open_context(struct dentry *dentry, struct rpc_cred *cred);
 extern struct nfs_open_context *get_nfs_open_context(struct nfs_open_context *ctx);
 extern void put_nfs_open_context(struct nfs_open_context *ctx);
-extern void nfs_file_set_open_context(struct file *filp, struct nfs_open_context *ctx);
 extern struct nfs_open_context *nfs_find_open_context(struct inode *inode, struct rpc_cred *cred, int mode);
-extern void nfs_file_clear_open_context(struct file *filp);
 
 /* linux/net/ipv4/ipconfig.c: trims ip addr off front of name, too. */
 extern u32 root_nfs_parse_addr(char *name); /*__init*/
@@ -415,21 +405,22 @@ extern int  nfs_writepage(struct page *page, struct writeback_control *wbc);
 extern int  nfs_writepages(struct address_space *, struct writeback_control *);
 extern int  nfs_flush_incompatible(struct file *file, struct page *page);
 extern int  nfs_updatepage(struct file *, struct page *, unsigned int, unsigned int);
-extern void nfs_writeback_done(struct rpc_task *task, void *data);
-extern void nfs_writedata_release(void *data);
+extern int nfs_writeback_done(struct rpc_task *, struct nfs_write_data *);
+extern void nfs_writedata_release(void *);
 
 #if defined(CONFIG_NFS_V3) || defined(CONFIG_NFS_V4)
-extern void nfs_commit_done(struct rpc_task *, void *data);
-extern void nfs_commit_release(void *data);
+struct nfs_write_data *nfs_commit_alloc(unsigned int pagecount);
+void nfs_commit_free(struct nfs_write_data *p);
 #endif
 
 /*
  * Try to write back everything synchronously (but check the
  * return value!)
  */
-extern int  nfs_sync_inode(struct inode *, unsigned long, unsigned int, int);
+extern int  nfs_sync_inode_wait(struct inode *, unsigned long, unsigned int, int);
 #if defined(CONFIG_NFS_V3) || defined(CONFIG_NFS_V4)
 extern int  nfs_commit_inode(struct inode *, int);
+extern void nfs_commit_release(void *wdata);
 #else
 static inline int
 nfs_commit_inode(struct inode *inode, int how)
@@ -447,7 +438,7 @@ nfs_have_writebacks(struct inode *inode)
 static inline int
 nfs_wb_all(struct inode *inode)
 {
-	int error = nfs_sync_inode(inode, 0, 0, FLUSH_WAIT);
+	int error = nfs_sync_inode_wait(inode, 0, 0, 0);
 	return (error < 0) ? error : 0;
 }
 
@@ -456,8 +447,8 @@ nfs_wb_all(struct inode *inode)
  */
 static inline int nfs_wb_page_priority(struct inode *inode, struct page* page, int how)
 {
-	int error = nfs_sync_inode(inode, page->index, 1,
-			how | FLUSH_WAIT | FLUSH_STABLE);
+	int error = nfs_sync_inode_wait(inode, page->index, 1,
+			how | FLUSH_STABLE);
 	return (error < 0) ? error : 0;
 }
 
@@ -469,37 +460,8 @@ static inline int nfs_wb_page(struct inode *inode, struct page* page)
 /*
  * Allocate and free nfs_write_data structures
  */
-extern mempool_t *nfs_wdata_mempool;
-
-static inline struct nfs_write_data *nfs_writedata_alloc(unsigned int pagecount)
-{
-	struct nfs_write_data *p = mempool_alloc(nfs_wdata_mempool, SLAB_NOFS);
-
-	if (p) {
-		memset(p, 0, sizeof(*p));
-		INIT_LIST_HEAD(&p->pages);
-		if (pagecount < NFS_PAGEVEC_SIZE)
-			p->pagevec = &p->page_array[0];
-		else {
-			size_t size = ++pagecount * sizeof(struct page *);
-			p->pagevec = kmalloc(size, GFP_NOFS);
-			if (p->pagevec) {
-				memset(p->pagevec, 0, size);
-			} else {
-				mempool_free(p, nfs_wdata_mempool);
-				p = NULL;
-			}
-		}
-	}
-	return p;
-}
-
-static inline void nfs_writedata_free(struct nfs_write_data *p)
-{
-	if (p && (p->pagevec != &p->page_array[0]))
-		kfree(p->pagevec);
-	mempool_free(p, nfs_wdata_mempool);
-}
+extern struct nfs_write_data *nfs_writedata_alloc(unsigned int pagecount);
+extern void nfs_writedata_free(struct nfs_write_data *p);
 
 /*
  * linux/fs/nfs/read.c
@@ -507,44 +469,14 @@ static inline void nfs_writedata_free(struct nfs_write_data *p)
 extern int  nfs_readpage(struct file *, struct page *);
 extern int  nfs_readpages(struct file *, struct address_space *,
 		struct list_head *, unsigned);
-extern void nfs_readpage_result(struct rpc_task *, void *);
-extern void  nfs_readdata_release(void *data);
-
+extern int  nfs_readpage_result(struct rpc_task *, struct nfs_read_data *);
+extern void nfs_readdata_release(void *data);
 
 /*
  * Allocate and free nfs_read_data structures
  */
-extern mempool_t *nfs_rdata_mempool;
-
-static inline struct nfs_read_data *nfs_readdata_alloc(unsigned int pagecount)
-{
-	struct nfs_read_data *p = mempool_alloc(nfs_rdata_mempool, SLAB_NOFS);
-
-	if (p) {
-		memset(p, 0, sizeof(*p));
-		INIT_LIST_HEAD(&p->pages);
-		if (pagecount < NFS_PAGEVEC_SIZE)
-			p->pagevec = &p->page_array[0];
-		else {
-			size_t size = ++pagecount * sizeof(struct page *);
-			p->pagevec = kmalloc(size, GFP_NOFS);
-			if (p->pagevec) {
-				memset(p->pagevec, 0, size);
-			} else {
-				mempool_free(p, nfs_rdata_mempool);
-				p = NULL;
-			}
-		}
-	}
-	return p;
-}
-
-static inline void nfs_readdata_free(struct nfs_read_data *p)
-{
-	if (p && (p->pagevec != &p->page_array[0]))
-		kfree(p->pagevec);
-	mempool_free(p, nfs_rdata_mempool);
-}
+extern struct nfs_read_data *nfs_readdata_alloc(unsigned int pagecount);
+extern void nfs_readdata_free(struct nfs_read_data *p);
 
 /*
  * linux/fs/nfs3proc.c
diff --git a/include/linux/nfs_fs_i.h b/include/linux/nfs_fs_i.h
index e2c18dab..8617302 100644
--- a/include/linux/nfs_fs_i.h
+++ b/include/linux/nfs_fs_i.h
@@ -12,8 +12,8 @@ struct nlm_lockowner;
  */
 struct nfs_lock_info {
 	u32		state;
-	u32		flags;
 	struct nlm_lockowner *owner;
+	struct list_head list;
 };
 
 struct nfs4_lock_state;
@@ -21,10 +21,4 @@ struct nfs4_lock_info {
 	struct nfs4_lock_state *owner;
 };
 
-/*
- * Lock flag values
- */
-#define NFS_LCK_GRANTED		0x0001		/* lock has been granted */
-#define NFS_LCK_RECLAIM		0x0002		/* lock marked for reclaiming */
-
 #endif
diff --git a/include/linux/nfs_fs_sb.h b/include/linux/nfs_fs_sb.h
index 3d3a305..65dec21 100644
--- a/include/linux/nfs_fs_sb.h
+++ b/include/linux/nfs_fs_sb.h
@@ -4,6 +4,8 @@
 #include <linux/list.h>
 #include <linux/backing-dev.h>
 
+struct nfs_iostats;
+
 /*
  * NFS client parameters stored in the superblock.
  */
@@ -12,6 +14,7 @@ struct nfs_server {
 	struct rpc_clnt *	client_sys;	/* 2nd handle for FSINFO */
 	struct rpc_clnt *	client_acl;	/* ACL RPC client handle */
 	struct nfs_rpc_ops *	rpc_ops;	/* NFS protocol vector */
+	struct nfs_iostats *	io_stats;	/* I/O statistics */
 	struct backing_dev_info	backing_dev_info;
 	int			flags;		/* various flags */
 	unsigned int		caps;		/* server capabilities */
@@ -26,10 +29,13 @@ struct nfs_server {
 	unsigned int		acregmax;
 	unsigned int		acdirmin;
 	unsigned int		acdirmax;
+	unsigned long		retrans_timeo;	/* retransmit timeout */
+	unsigned int		retrans_count;	/* number of retransmit tries */
 	unsigned int		namelen;
 	char *			hostname;	/* remote hostname */
 	struct nfs_fh		fh;
 	struct sockaddr_in	addr;
+	unsigned long		mount_time;	/* when this fs was mounted */
 #ifdef CONFIG_NFS_V4
 	/* Our own IP address, as a null-terminated string.
 	 * This is used to generate the clientid, and the callback address.
diff --git a/include/linux/nfs_xdr.h b/include/linux/nfs_xdr.h
index 6d6f69e..7fafc4c 100644
--- a/include/linux/nfs_xdr.h
+++ b/include/linux/nfs_xdr.h
@@ -695,7 +695,6 @@ struct nfs_read_data {
 #ifdef CONFIG_NFS_V4
 	unsigned long		timestamp;	/* For lease renewal */
 #endif
-	void (*complete) (struct nfs_read_data *, int);
 	struct page		*page_array[NFS_PAGEVEC_SIZE + 1];
 };
 
@@ -714,7 +713,6 @@ struct nfs_write_data {
 #ifdef CONFIG_NFS_V4
 	unsigned long		timestamp;	/* For lease renewal */
 #endif
-	void (*complete) (struct nfs_write_data *, int);
 	struct page		*page_array[NFS_PAGEVEC_SIZE + 1];
 };
 
@@ -769,8 +767,11 @@ struct nfs_rpc_ops {
 			     struct nfs_pathconf *);
 	u32 *	(*decode_dirent)(u32 *, struct nfs_entry *, int plus);
 	void	(*read_setup)   (struct nfs_read_data *);
+	int	(*read_done)  (struct rpc_task *, struct nfs_read_data *);
 	void	(*write_setup)  (struct nfs_write_data *, int how);
+	int	(*write_done)  (struct rpc_task *, struct nfs_write_data *);
 	void	(*commit_setup) (struct nfs_write_data *, int how);
+	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 *);
diff --git a/include/linux/sunrpc/clnt.h b/include/linux/sunrpc/clnt.h
index f147e6b..8fe9f35 100644
--- a/include/linux/sunrpc/clnt.h
+++ b/include/linux/sunrpc/clnt.h
@@ -45,7 +45,8 @@ struct rpc_clnt {
 	char *			cl_server;	/* server machine name */
 	char *			cl_protname;	/* protocol name */
 	struct rpc_auth *	cl_auth;	/* authenticator */
-	struct rpc_stat *	cl_stats;	/* statistics */
+	struct rpc_stat *	cl_stats;	/* per-program statistics */
+	struct rpc_iostats *	cl_metrics;	/* per-client statistics */
 
 	unsigned int		cl_softrtry : 1,/* soft timeouts */
 				cl_intr     : 1,/* interruptible */
@@ -59,6 +60,7 @@ struct rpc_clnt {
 	int			cl_nodelen;	/* nodename length */
 	char 			cl_nodename[UNX_MAXNODENAME];
 	char			cl_pathname[30];/* Path in rpc_pipe_fs */
+	struct vfsmount *	cl_vfsmnt;
 	struct dentry *		cl_dentry;	/* inode */
 	struct rpc_clnt *	cl_parent;	/* Points to parent of clones */
 	struct rpc_rtt		cl_rtt_default;
@@ -100,6 +102,8 @@ struct rpc_procinfo {
 	unsigned int		p_bufsiz;	/* req. buffer size */
 	unsigned int		p_count;	/* call count */
 	unsigned int		p_timer;	/* Which RTT timer to use */
+	u32			p_statidx;	/* Which procedure to account */
+	char *			p_name;		/* name of procedure */
 };
 
 #define RPC_CONGESTED(clnt)	(RPCXPRT_CONGESTED((clnt)->cl_xprt))
@@ -137,20 +141,6 @@ size_t		rpc_max_payload(struct rpc_clnt *);
 void		rpc_force_rebind(struct rpc_clnt *);
 int		rpc_ping(struct rpc_clnt *clnt, int flags);
 
-static __inline__
-int rpc_call(struct rpc_clnt *clnt, u32 proc, void *argp, void *resp, int flags)
-{
-	struct rpc_message msg = {
-		.rpc_proc	= &clnt->cl_procinfo[proc],
-		.rpc_argp	= argp,
-		.rpc_resp	= resp,
-		.rpc_cred	= NULL
-	};
-	return rpc_call_sync(clnt, &msg, flags);
-}
-		
-extern void rpciod_wake_up(void);
-
 /*
  * Helper function for NFSroot support
  */
diff --git a/include/linux/sunrpc/gss_krb5.h b/include/linux/sunrpc/gss_krb5.h
index 2c3601d..1279280 100644
--- a/include/linux/sunrpc/gss_krb5.h
+++ b/include/linux/sunrpc/gss_krb5.h
@@ -53,6 +53,8 @@ struct krb5_ctx {
 	struct xdr_netobj	mech_used;
 };
 
+extern spinlock_t krb5_seq_lock;
+
 #define KG_TOK_MIC_MSG    0x0101
 #define KG_TOK_WRAP_MSG   0x0201
 
diff --git a/include/linux/sunrpc/metrics.h b/include/linux/sunrpc/metrics.h
new file mode 100644
index 0000000..8f96e9d
--- /dev/null
+++ b/include/linux/sunrpc/metrics.h
@@ -0,0 +1,77 @@
+/*
+ *  linux/include/linux/sunrpc/metrics.h
+ *
+ *  Declarations for RPC client per-operation metrics
+ *
+ *  Copyright (C) 2005	Chuck Lever <cel@netapp.com>
+ *
+ *  RPC client per-operation statistics provide latency and retry
+ *  information about each type of RPC procedure in a given RPC program.
+ *  These statistics are not for detailed problem diagnosis, but simply
+ *  to indicate whether the problem is local or remote.
+ *
+ *  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.
+ *
+ *  The counters are maintained in a single array per RPC client, indexed
+ *  by procedure number.  There is no need to maintain separate counter
+ *  arrays per-CPU because these counters are always modified behind locks.
+ */
+
+#ifndef _LINUX_SUNRPC_METRICS_H
+#define _LINUX_SUNRPC_METRICS_H
+
+#include <linux/seq_file.h>
+
+#define RPC_IOSTATS_VERS	"1.0"
+
+struct rpc_iostats {
+	/*
+	 * These counters give an idea about how many request
+	 * transmissions are required, on average, to complete that
+	 * particular procedure.  Some procedures may require more
+	 * than one transmission because the server is unresponsive,
+	 * the client is retransmitting too aggressively, or the
+	 * requests are large and the network is congested.
+	 */
+	unsigned long		om_ops,		/* count of operations */
+				om_ntrans,	/* count of RPC transmissions */
+				om_timeouts;	/* count of major timeouts */
+
+	/*
+	 * These count how many bytes are sent and received for a
+	 * given RPC procedure type.  This indicates how much load a
+	 * particular procedure is putting on the network.  These
+	 * counts include the RPC and ULP headers, and the request
+	 * payload.
+	 */
+	unsigned long long      om_bytes_sent,	/* count of bytes out */
+				om_bytes_recv;	/* count of bytes in */
+
+	/*
+	 * The length of time an RPC request waits in queue before
+	 * transmission, the network + server latency of the request,
+	 * and the total time the request spent from init to release
+	 * are measured.
+	 */
+	unsigned long long	om_queue,	/* jiffies queued for xmit */
+				om_rtt,		/* jiffies for RPC RTT */
+				om_execute;	/* jiffies for RPC execution */
+} ____cacheline_aligned;
+
+struct rpc_task;
+struct rpc_clnt;
+
+/*
+ * EXPORTed functions for managing rpc_iostats structures
+ */
+struct rpc_iostats *	rpc_alloc_iostats(struct rpc_clnt *);
+void			rpc_count_iostats(struct rpc_task *);
+void			rpc_print_iostats(struct seq_file *, struct rpc_clnt *);
+void			rpc_free_iostats(struct rpc_iostats *);
+
+#endif /* _LINUX_SUNRPC_METRICS_H */
diff --git a/include/linux/sunrpc/rpc_pipe_fs.h b/include/linux/sunrpc/rpc_pipe_fs.h
index 6392934..2c2189c 100644
--- a/include/linux/sunrpc/rpc_pipe_fs.h
+++ b/include/linux/sunrpc/rpc_pipe_fs.h
@@ -45,6 +45,8 @@ extern struct dentry *rpc_mkdir(char *, struct rpc_clnt *);
 extern int rpc_rmdir(char *);
 extern struct dentry *rpc_mkpipe(char *, void *, struct rpc_pipe_ops *, int flags);
 extern int rpc_unlink(char *);
+extern struct vfsmount *rpc_get_mount(void);
+extern void rpc_put_mount(void);
 
 #endif
 #endif
diff --git a/include/linux/sunrpc/sched.h b/include/linux/sunrpc/sched.h
index 8b25629..82a91bb 100644
--- a/include/linux/sunrpc/sched.h
+++ b/include/linux/sunrpc/sched.h
@@ -86,6 +86,12 @@ struct rpc_task {
 		struct work_struct	tk_work;	/* Async task work queue */
 		struct rpc_wait		tk_wait;	/* RPC wait */
 	} u;
+
+	unsigned short		tk_timeouts;	/* maj timeouts */
+	size_t			tk_bytes_sent;	/* total bytes sent */
+	unsigned long		tk_start;	/* RPC task init timestamp */
+	long			tk_rtt;		/* round-trip time (jiffies) */
+
 #ifdef RPC_DEBUG
 	unsigned short		tk_pid;		/* debugging aid */
 #endif
@@ -203,6 +209,7 @@ struct rpc_wait_queue {
 	unsigned char		priority;		/* current priority */
 	unsigned char		count;			/* # task groups remaining serviced so far */
 	unsigned char		nr;			/* # tasks remaining for cookie */
+	unsigned short		qlen;			/* total # tasks waiting in queue */
 #ifdef RPC_DEBUG
 	const char *		name;
 #endif
@@ -269,13 +276,13 @@ void *		rpc_malloc(struct rpc_task *, size_t);
 void		rpc_free(struct rpc_task *);
 int		rpciod_up(void);
 void		rpciod_down(void);
-void		rpciod_wake_up(void);
 int		__rpc_wait_for_completion_task(struct rpc_task *task, int (*)(void *));
 #ifdef RPC_DEBUG
 void		rpc_show_tasks(void);
 #endif
 int		rpc_init_mempool(void);
 void		rpc_destroy_mempool(void);
+extern struct workqueue_struct *rpciod_workqueue;
 
 static inline void rpc_exit(struct rpc_task *task, int status)
 {
diff --git a/include/linux/sunrpc/xprt.h b/include/linux/sunrpc/xprt.h
index 6ef99b1..7eebbab 100644
--- a/include/linux/sunrpc/xprt.h
+++ b/include/linux/sunrpc/xprt.h
@@ -114,6 +114,7 @@ struct rpc_xprt_ops {
 	void		(*release_request)(struct rpc_task *task);
 	void		(*close)(struct rpc_xprt *xprt);
 	void		(*destroy)(struct rpc_xprt *xprt);
+	void		(*print_stats)(struct rpc_xprt *xprt, struct seq_file *seq);
 };
 
 struct rpc_xprt {
@@ -187,6 +188,18 @@ struct rpc_xprt {
 
 	struct list_head	recv;
 
+	struct {
+		unsigned long		bind_count,	/* total number of binds */
+					connect_count,	/* total number of connects */
+					connect_start,	/* connect start timestamp */
+					connect_time,	/* jiffies waiting for connect */
+					sends,		/* how many complete requests */
+					recvs,		/* how many complete requests */
+					bad_xids;	/* lookup_rqst didn't find XID */
+
+		unsigned long long	req_u,		/* average requests on the wire */
+					bklog_u;	/* backlog queue utilization */
+	} stat;
 
 	void			(*old_data_ready)(struct sock *, int);
 	void			(*old_state_change)(struct sock *);