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

* git://git.linux-nfs.org/pub/linux/nfs-2.6: (131 commits)
  NFSv4: Fix a typo in nfs_inode_reclaim_delegation
  NFS: Add a boot parameter to disable 64 bit inode numbers
  NFS: nfs_refresh_inode should clear cache_validity flags on success
  NFS: Fix a connectathon regression in NFSv3 and NFSv4
  NFS: Use nfs_refresh_inode() in ops that aren't expected to change the inode
  SUNRPC: Don't call xprt_release in call refresh
  SUNRPC: Don't call xprt_release() if call_allocate fails
  SUNRPC: Fix buggy UDP transmission
  [23/37] Clean up duplicate includes in
  [2.6 patch] net/sunrpc/rpcb_clnt.c: make struct rpcb_program static
  SUNRPC: Use correct type in buffer length calculations
  SUNRPC: Fix default hostname created in rpc_create()
  nfs: add server port to rpc_pipe info file
  NFS: Get rid of some obsolete macros
  NFS: Simplify filehandle revalidation
  NFS: Ensure that nfs_link() returns a hashed dentry
  NFS: Be strict about dentry revalidation when doing exclusive create
  NFS: Don't zap the readdir caches upon error
  NFS: Remove the redundant nfs_reval_fsid()
  NFSv3: Always use directory post-op attributes in nfs3_proc_lookup
  ...

Fix up trivial conflict due to sock_owned_by_user() cleanup manually in
net/sunrpc/xprtsock.c

13 files changed, 332 insertions, 78 deletions

diff --git a/include/linux/jiffies.h b/include/linux/jiffies.h
index d7a5e034c3a2..e757a74b9d17 100644
--- a/include/linux/jiffies.h
+++ b/include/linux/jiffies.h
@@ -109,6 +109,10 @@ static inline u64 get_jiffies_64(void)
 	 ((long)(a) - (long)(b) >= 0))
 #define time_before_eq(a,b)	time_after_eq(b,a)
 
+#define time_in_range(a,b,c) \
+	(time_after_eq(a,b) && \
+	 time_before_eq(a,c))
+
 /* Same as above, but does so with platform independent 64bit types.
  * These must be used when utilizing jiffies_64 (i.e. return value of
  * get_jiffies_64() */
diff --git a/include/linux/nfs_fs.h b/include/linux/nfs_fs.h
index 7250eeadd7b5..c5164c257f71 100644
--- a/include/linux/nfs_fs.h
+++ b/include/linux/nfs_fs.h
@@ -47,10 +47,8 @@
 #include <linux/nfs3.h>
 #include <linux/nfs4.h>
 #include <linux/nfs_xdr.h>
-
 #include <linux/nfs_fs_sb.h>
 
-#include <linux/rwsem.h>
 #include <linux/mempool.h>
 
 /*
@@ -77,6 +75,9 @@ struct nfs_open_context {
 	struct nfs4_state *state;
 	fl_owner_t lockowner;
 	int mode;
+
+	unsigned long flags;
+#define NFS_CONTEXT_ERROR_WRITE		(0)
 	int error;
 
 	struct list_head list;
@@ -133,11 +134,6 @@ struct nfs_inode {
 	 * server.
 	 */
 	unsigned long		cache_change_attribute;
-	/*
-	 * Counter indicating the number of outstanding requests that
-	 * will cause a file data update.
-	 */
-	atomic_t		data_updates;
 
 	struct rb_root		access_cache;
 	struct list_head	access_cache_entry_lru;
@@ -205,27 +201,18 @@ static inline struct nfs_inode *NFS_I(struct inode *inode)
 #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_READTIME(inode)		(NFS_I(inode)->read_cache_jiffies)
-#define NFS_CHANGE_ATTR(inode)		(NFS_I(inode)->change_attr)
-#define NFS_ATTRTIMEO(inode)		(NFS_I(inode)->attrtimeo)
 #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)
-#define NFS_ATTRTIMEO_UPDATE(inode)	(NFS_I(inode)->attrtimeo_timestamp)
 
 #define NFS_FLAGS(inode)		(NFS_I(inode)->flags)
 #define NFS_STALE(inode)		(test_bit(NFS_INO_STALE, &NFS_FLAGS(inode)))
 
 #define NFS_FILEID(inode)		(NFS_I(inode)->fileid)
 
-static inline int nfs_caches_unstable(struct inode *inode)
-{
-	return atomic_read(&NFS_I(inode)->data_updates) != 0;
-}
-
 static inline void nfs_mark_for_revalidate(struct inode *inode)
 {
 	struct nfs_inode *nfsi = NFS_I(inode);
@@ -237,12 +224,6 @@ static inline void nfs_mark_for_revalidate(struct inode *inode)
 	spin_unlock(&inode->i_lock);
 }
 
-static inline void NFS_CACHEINV(struct inode *inode)
-{
-	if (!nfs_caches_unstable(inode))
-		nfs_mark_for_revalidate(inode);
-}
-
 static inline int nfs_server_capable(struct inode *inode, int cap)
 {
 	return NFS_SERVER(inode)->caps & cap;
@@ -253,28 +234,33 @@ static inline int NFS_USE_READDIRPLUS(struct inode *inode)
 	return test_bit(NFS_INO_ADVISE_RDPLUS, &NFS_FLAGS(inode));
 }
 
+static inline void nfs_set_verifier(struct dentry * dentry, unsigned long verf)
+{
+	dentry->d_time = verf;
+}
+
 /**
  * nfs_save_change_attribute - Returns the inode attribute change cookie
- * @inode - pointer to inode
+ * @dir - pointer to parent directory inode
  * The "change attribute" is updated every time we finish an operation
  * that will result in a metadata change on the server.
  */
-static inline long nfs_save_change_attribute(struct inode *inode)
+static inline unsigned long nfs_save_change_attribute(struct inode *dir)
 {
-	return NFS_I(inode)->cache_change_attribute;
+	return NFS_I(dir)->cache_change_attribute;
 }
 
 /**
- * nfs_verify_change_attribute - Detects NFS inode cache updates
- * @inode - pointer to inode
+ * nfs_verify_change_attribute - Detects NFS remote directory changes
+ * @dir - pointer to parent directory inode
  * @chattr - previously saved change attribute
- * Return "false" if metadata has been updated (or is in the process of
- * being updated) since the change attribute was saved.
+ * Return "false" if the verifiers doesn't match the change attribute.
+ * This would usually indicate that the directory contents have changed on
+ * the server, and that any dentries need revalidating.
  */
-static inline int nfs_verify_change_attribute(struct inode *inode, unsigned long chattr)
+static inline int nfs_verify_change_attribute(struct inode *dir, unsigned long chattr)
 {
-	return !nfs_caches_unstable(inode)
-		&& time_after_eq(chattr, NFS_I(inode)->cache_change_attribute);
+	return chattr == NFS_I(dir)->cache_change_attribute;
 }
 
 /*
@@ -283,15 +269,14 @@ static inline int nfs_verify_change_attribute(struct inode *inode, unsigned long
 extern int nfs_sync_mapping(struct address_space *mapping);
 extern void nfs_zap_mapping(struct inode *inode, struct address_space *mapping);
 extern void nfs_zap_caches(struct inode *);
+extern void nfs_invalidate_atime(struct inode *);
 extern struct inode *nfs_fhget(struct super_block *, struct nfs_fh *,
 				struct nfs_fattr *);
 extern int nfs_refresh_inode(struct inode *, struct nfs_fattr *);
 extern int nfs_post_op_update_inode(struct inode *inode, struct nfs_fattr *fattr);
+extern int nfs_post_op_update_inode_force_wcc(struct inode *inode, struct nfs_fattr *fattr);
 extern int nfs_getattr(struct vfsmount *, struct dentry *, struct kstat *);
 extern int nfs_permission(struct inode *, int, struct nameidata *);
-extern int nfs_access_get_cached(struct inode *, struct rpc_cred *, struct nfs_access_entry *);
-extern void nfs_access_add_cache(struct inode *, struct nfs_access_entry *);
-extern void nfs_access_zap_cache(struct inode *inode);
 extern int nfs_open(struct inode *, struct file *);
 extern int nfs_release(struct inode *, struct file *);
 extern int nfs_attribute_timeout(struct inode *inode);
@@ -301,13 +286,10 @@ extern int nfs_revalidate_mapping(struct inode *inode, struct address_space *map
 extern int nfs_revalidate_mapping_nolock(struct inode *inode, struct address_space *mapping);
 extern int nfs_setattr(struct dentry *, struct iattr *);
 extern void nfs_setattr_update_inode(struct inode *inode, struct iattr *attr);
-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 *get_nfs_open_context(struct nfs_open_context *ctx);
 extern void put_nfs_open_context(struct nfs_open_context *ctx);
 extern struct nfs_open_context *nfs_find_open_context(struct inode *inode, struct rpc_cred *cred, int mode);
+extern u64 nfs_compat_user_ino64(u64 fileid);
 
 /* linux/net/ipv4/ipconfig.c: trims ip addr off front of name, too. */
 extern __be32 root_nfs_parse_addr(char *name); /*__init*/
@@ -328,14 +310,15 @@ extern const struct inode_operations nfs3_file_inode_operations;
 extern const struct file_operations nfs_file_operations;
 extern const struct address_space_operations nfs_file_aops;
 
-static inline struct rpc_cred *nfs_file_cred(struct file *file)
+static inline struct nfs_open_context *nfs_file_open_context(struct file *filp)
 {
-	if (file != NULL) {
-		struct nfs_open_context *ctx;
+	return filp->private_data;
+}
 
-		ctx = (struct nfs_open_context*)file->private_data;
-		return ctx->cred;
-	}
+static inline struct rpc_cred *nfs_file_cred(struct file *file)
+{
+	if (file != NULL)
+		return nfs_file_open_context(file)->cred;
 	return NULL;
 }
 
@@ -378,6 +361,8 @@ extern const struct file_operations nfs_dir_operations;
 extern struct dentry_operations nfs_dentry_operations;
 
 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);
 
 /*
  * linux/fs/nfs/symlink.c
@@ -420,15 +405,14 @@ extern int  nfs_flush_incompatible(struct file *file, struct page *page);
 extern int  nfs_updatepage(struct file *, struct page *, unsigned int, unsigned int);
 extern int nfs_writeback_done(struct rpc_task *, struct nfs_write_data *);
 extern void nfs_writedata_release(void *);
-extern int nfs_set_page_dirty(struct page *);
 
 /*
  * Try to write back everything synchronously (but check the
  * return value!)
  */
 extern long nfs_sync_mapping_wait(struct address_space *, struct writeback_control *, int);
-extern int nfs_sync_mapping_range(struct address_space *, loff_t, loff_t, int);
 extern int nfs_wb_all(struct inode *inode);
+extern int nfs_wb_nocommit(struct inode *inode);
 extern int nfs_wb_page(struct inode *inode, struct page* page);
 extern int nfs_wb_page_priority(struct inode *inode, struct page* page, int how);
 extern int nfs_wb_page_cancel(struct inode *inode, struct page* page);
diff --git a/include/linux/nfs_page.h b/include/linux/nfs_page.h
index 78e60798d10e..30dbcc185e69 100644
--- a/include/linux/nfs_page.h
+++ b/include/linux/nfs_page.h
@@ -30,7 +30,6 @@
 #define PG_BUSY			0
 #define PG_NEED_COMMIT		1
 #define PG_NEED_RESCHED		2
-#define PG_NEED_FLUSH		3
 
 struct nfs_inode;
 struct nfs_page {
diff --git a/include/linux/nfs_xdr.h b/include/linux/nfs_xdr.h
index cf74a4db84a5..daab252f2e5c 100644
--- a/include/linux/nfs_xdr.h
+++ b/include/linux/nfs_xdr.h
@@ -62,7 +62,8 @@ struct nfs_fattr {
 #define NFS_ATTR_FATTR		0x0002		/* post-op attributes */
 #define NFS_ATTR_FATTR_V3	0x0004		/* NFSv3 attributes */
 #define NFS_ATTR_FATTR_V4	0x0008		/* NFSv4 change attribute */
-#define NFS_ATTR_FATTR_V4_REFERRAL	0x0010		/* NFSv4 referral */
+#define NFS_ATTR_WCC_V4		0x0010		/* pre-op change attribute */
+#define NFS_ATTR_FATTR_V4_REFERRAL	0x0020		/* NFSv4 referral */
 
 /*
  * Info on the file system
@@ -538,10 +539,13 @@ typedef u64 clientid4;
 
 struct nfs4_accessargs {
 	const struct nfs_fh *		fh;
+	const u32 *			bitmask;
 	u32				access;
 };
 
 struct nfs4_accessres {
+	const struct nfs_server *	server;
+	struct nfs_fattr *		fattr;
 	u32				supported;
 	u32				access;
 };
diff --git a/include/linux/sunrpc/clnt.h b/include/linux/sunrpc/clnt.h
index c0d9d14983b3..d9d5c5ad826c 100644
--- a/include/linux/sunrpc/clnt.h
+++ b/include/linux/sunrpc/clnt.h
@@ -117,7 +117,7 @@ struct rpc_create_args {
 
 struct rpc_clnt *rpc_create(struct rpc_create_args *args);
 struct rpc_clnt	*rpc_bind_new_program(struct rpc_clnt *,
-				struct rpc_program *, int);
+				struct rpc_program *, u32);
 struct rpc_clnt *rpc_clone_client(struct rpc_clnt *);
 void		rpc_shutdown_client(struct rpc_clnt *);
 void		rpc_release_client(struct rpc_clnt *);
diff --git a/include/linux/sunrpc/debug.h b/include/linux/sunrpc/debug.h
index 3912cf16361e..3347c72b848a 100644
--- a/include/linux/sunrpc/debug.h
+++ b/include/linux/sunrpc/debug.h
@@ -88,6 +88,11 @@ enum {
 	CTL_SLOTTABLE_TCP,
 	CTL_MIN_RESVPORT,
 	CTL_MAX_RESVPORT,
+	CTL_SLOTTABLE_RDMA,
+	CTL_RDMA_MAXINLINEREAD,
+	CTL_RDMA_MAXINLINEWRITE,
+	CTL_RDMA_WRITEPADDING,
+	CTL_RDMA_MEMREG,
 };
 
 #endif /* _LINUX_SUNRPC_DEBUG_H_ */
diff --git a/include/linux/sunrpc/msg_prot.h b/include/linux/sunrpc/msg_prot.h
index 784d4c3ef651..c4beb5775111 100644
--- a/include/linux/sunrpc/msg_prot.h
+++ b/include/linux/sunrpc/msg_prot.h
@@ -138,6 +138,19 @@ typedef __be32	rpc_fraghdr;
 #define RPC_MAX_HEADER_WITH_AUTH \
 	(RPC_CALLHDRSIZE + 2*(2+RPC_MAX_AUTH_SIZE/4))
 
+/*
+ * RFC1833/RFC3530 rpcbind (v3+) well-known netid's.
+ */
+#define RPCBIND_NETID_UDP	"udp"
+#define RPCBIND_NETID_TCP	"tcp"
+#define RPCBIND_NETID_UDP6	"udp6"
+#define RPCBIND_NETID_TCP6	"tcp6"
+
+/*
+ * Note that RFC 1833 does not put any size restrictions on the
+ * netid string, but all currently defined netid's fit in 4 bytes.
+ */
+#define RPCBIND_MAXNETIDLEN	(4u)
 
 #endif /* __KERNEL__ */
 #endif /* _LINUX_SUNRPC_MSGPROT_H_ */
diff --git a/include/linux/sunrpc/rpc_rdma.h b/include/linux/sunrpc/rpc_rdma.h
new file mode 100644
index 000000000000..0013a0d8dc6b
--- /dev/null
+++ b/include/linux/sunrpc/rpc_rdma.h
@@ -0,0 +1,116 @@
+/*
+ * Copyright (c) 2003-2007 Network Appliance, Inc. All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses.  You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the BSD-type
+ * license below:
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ *      Redistributions of source code must retain the above copyright
+ *      notice, this list of conditions and the following disclaimer.
+ *
+ *      Redistributions in binary form must reproduce the above
+ *      copyright notice, this list of conditions and the following
+ *      disclaimer in the documentation and/or other materials provided
+ *      with the distribution.
+ *
+ *      Neither the name of the Network Appliance, Inc. nor the names of
+ *      its contributors may be used to endorse or promote products
+ *      derived from this software without specific prior written
+ *      permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef _LINUX_SUNRPC_RPC_RDMA_H
+#define _LINUX_SUNRPC_RPC_RDMA_H
+
+struct rpcrdma_segment {
+	uint32_t rs_handle;	/* Registered memory handle */
+	uint32_t rs_length;	/* Length of the chunk in bytes */
+	uint64_t rs_offset;	/* Chunk virtual address or offset */
+};
+
+/*
+ * read chunk(s), encoded as a linked list.
+ */
+struct rpcrdma_read_chunk {
+	uint32_t rc_discrim;	/* 1 indicates presence */
+	uint32_t rc_position;	/* Position in XDR stream */
+	struct rpcrdma_segment rc_target;
+};
+
+/*
+ * write chunk, and reply chunk.
+ */
+struct rpcrdma_write_chunk {
+	struct rpcrdma_segment wc_target;
+};
+
+/*
+ * write chunk(s), encoded as a counted array.
+ */
+struct rpcrdma_write_array {
+	uint32_t wc_discrim;	/* 1 indicates presence */
+	uint32_t wc_nchunks;	/* Array count */
+	struct rpcrdma_write_chunk wc_array[0];
+};
+
+struct rpcrdma_msg {
+	uint32_t rm_xid;	/* Mirrors the RPC header xid */
+	uint32_t rm_vers;	/* Version of this protocol */
+	uint32_t rm_credit;	/* Buffers requested/granted */
+	uint32_t rm_type;	/* Type of message (enum rpcrdma_proc) */
+	union {
+
+		struct {			/* no chunks */
+			uint32_t rm_empty[3];	/* 3 empty chunk lists */
+		} rm_nochunks;
+
+		struct {			/* no chunks and padded */
+			uint32_t rm_align;	/* Padding alignment */
+			uint32_t rm_thresh;	/* Padding threshold */
+			uint32_t rm_pempty[3];	/* 3 empty chunk lists */
+		} rm_padded;
+
+		uint32_t rm_chunks[0];	/* read, write and reply chunks */
+
+	} rm_body;
+};
+
+#define RPCRDMA_HDRLEN_MIN	28
+
+enum rpcrdma_errcode {
+	ERR_VERS = 1,
+	ERR_CHUNK = 2
+};
+
+struct rpcrdma_err_vers {
+	uint32_t rdma_vers_low;	/* Version range supported by peer */
+	uint32_t rdma_vers_high;
+};
+
+enum rpcrdma_proc {
+	RDMA_MSG = 0,		/* An RPC call or reply msg */
+	RDMA_NOMSG = 1,		/* An RPC call or reply msg - separate body */
+	RDMA_MSGP = 2,		/* An RPC call or reply msg with padding */
+	RDMA_DONE = 3,		/* Client signals reply completion */
+	RDMA_ERROR = 4		/* An RPC RDMA encoding error */
+};
+
+#endif				/* _LINUX_SUNRPC_RPC_RDMA_H */
diff --git a/include/linux/sunrpc/xdr.h b/include/linux/sunrpc/xdr.h
index c6b53d181bfa..0751c9464d0f 100644
--- a/include/linux/sunrpc/xdr.h
+++ b/include/linux/sunrpc/xdr.h
@@ -70,7 +70,10 @@ struct xdr_buf {
 
 	struct page **	pages;		/* Array of contiguous pages */
 	unsigned int	page_base,	/* Start of page data */
-			page_len;	/* Length of page data */
+			page_len,	/* Length of page data */
+			flags;		/* Flags for data disposition */
+#define XDRBUF_READ		0x01		/* target of file read */
+#define XDRBUF_WRITE		0x02		/* source of file write */
 
 	unsigned int	buflen,		/* Total length of storage buffer */
 			len;		/* Length of XDR encoded message */
diff --git a/include/linux/sunrpc/xprt.h b/include/linux/sunrpc/xprt.h
index d11cedd14f0f..30b17b3bc1a9 100644
--- a/include/linux/sunrpc/xprt.h
+++ b/include/linux/sunrpc/xprt.h
@@ -19,25 +19,11 @@
 
 #ifdef __KERNEL__
 
-extern unsigned int xprt_udp_slot_table_entries;
-extern unsigned int xprt_tcp_slot_table_entries;
-
 #define RPC_MIN_SLOT_TABLE	(2U)
 #define RPC_DEF_SLOT_TABLE	(16U)
 #define RPC_MAX_SLOT_TABLE	(128U)
 
 /*
- * Parameters for choosing a free port
- */
-extern unsigned int xprt_min_resvport;
-extern unsigned int xprt_max_resvport;
-
-#define RPC_MIN_RESVPORT	(1U)
-#define RPC_MAX_RESVPORT	(65535U)
-#define RPC_DEF_MIN_RESVPORT	(665U)
-#define RPC_DEF_MAX_RESVPORT	(1023U)
-
-/*
  * This describes a timeout strategy
  */
 struct rpc_timeout {
@@ -53,6 +39,10 @@ enum rpc_display_format_t {
 	RPC_DISPLAY_PORT,
 	RPC_DISPLAY_PROTO,
 	RPC_DISPLAY_ALL,
+	RPC_DISPLAY_HEX_ADDR,
+	RPC_DISPLAY_HEX_PORT,
+	RPC_DISPLAY_UNIVERSAL_ADDR,
+	RPC_DISPLAY_NETID,
 	RPC_DISPLAY_MAX,
 };
 
@@ -196,14 +186,22 @@ struct rpc_xprt {
 	char *			address_strings[RPC_DISPLAY_MAX];
 };
 
-struct rpc_xprtsock_create {
-	int			proto;		/* IPPROTO_UDP or IPPROTO_TCP */
+struct xprt_create {
+	int			ident;		/* XPRT_TRANSPORT identifier */
 	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 {
+	struct list_head	list;
+	int			ident;		/* XPRT_TRANSPORT identifier */
+	struct rpc_xprt *	(*setup)(struct xprt_create *);
+	struct module		*owner;
+	char			name[32];
+};
+
 /*
  * Transport operations used by ULPs
  */
@@ -212,7 +210,7 @@ void			xprt_set_timeout(struct rpc_timeout *to, unsigned int retr, unsigned long
 /*
  * Generic internal transport functions
  */
-struct rpc_xprt *	xprt_create_transport(struct rpc_xprtsock_create *args);
+struct rpc_xprt		*xprt_create_transport(struct xprt_create *args);
 void			xprt_connect(struct rpc_task *task);
 void			xprt_reserve(struct rpc_task *task);
 int			xprt_reserve_xprt(struct rpc_task *task);
@@ -235,6 +233,8 @@ static inline __be32 *xprt_skip_transport_header(struct rpc_xprt *xprt, __be32 *
 /*
  * Transport switch helper functions
  */
+int			xprt_register_transport(struct xprt_class *type);
+int			xprt_unregister_transport(struct xprt_class *type);
 void			xprt_set_retrans_timeout_def(struct rpc_task *task);
 void			xprt_set_retrans_timeout_rtt(struct rpc_task *task);
 void			xprt_wake_pending_tasks(struct rpc_xprt *xprt, int status);
@@ -248,14 +248,6 @@ void			xprt_release_rqst_cong(struct rpc_task *task);
 void			xprt_disconnect(struct rpc_xprt *xprt);
 
 /*
- * Socket transport setup operations
- */
-struct rpc_xprt *	xs_setup_udp(struct rpc_xprtsock_create *args);
-struct rpc_xprt *	xs_setup_tcp(struct rpc_xprtsock_create *args);
-int			init_socket_xprt(void);
-void			cleanup_socket_xprt(void);
-
-/*
  * Reserved bit positions in xprt->state
  */
 #define XPRT_LOCKED		(0)
diff --git a/include/linux/sunrpc/xprtrdma.h b/include/linux/sunrpc/xprtrdma.h
new file mode 100644
index 000000000000..4de56b1d372b
--- /dev/null
+++ b/include/linux/sunrpc/xprtrdma.h
@@ -0,0 +1,85 @@
+/*
+ * Copyright (c) 2003-2007 Network Appliance, Inc. All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses.  You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the BSD-type
+ * license below:
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ *      Redistributions of source code must retain the above copyright
+ *      notice, this list of conditions and the following disclaimer.
+ *
+ *      Redistributions in binary form must reproduce the above
+ *      copyright notice, this list of conditions and the following
+ *      disclaimer in the documentation and/or other materials provided
+ *      with the distribution.
+ *
+ *      Neither the name of the Network Appliance, Inc. nor the names of
+ *      its contributors may be used to endorse or promote products
+ *      derived from this software without specific prior written
+ *      permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef _LINUX_SUNRPC_XPRTRDMA_H
+#define _LINUX_SUNRPC_XPRTRDMA_H
+
+/*
+ * RPC transport identifier for RDMA
+ */
+#define XPRT_TRANSPORT_RDMA	256
+
+/*
+ * rpcbind (v3+) RDMA netid.
+ */
+#define RPCBIND_NETID_RDMA	"rdma"
+
+/*
+ * Constants. Max RPC/NFS header is big enough to account for
+ * additional marshaling buffers passed down by Linux client.
+ *
+ * RDMA header is currently fixed max size, and is big enough for a
+ * fully-chunked NFS message (read chunks are the largest). Note only
+ * a single chunk type per message is supported currently.
+ */
+#define RPCRDMA_MIN_SLOT_TABLE	(2U)
+#define RPCRDMA_DEF_SLOT_TABLE	(32U)
+#define RPCRDMA_MAX_SLOT_TABLE	(256U)
+
+#define RPCRDMA_DEF_INLINE  (1024)	/* default inline max */
+
+#define RPCRDMA_INLINE_PAD_THRESH  (512)/* payload threshold to pad (bytes) */
+
+#define RDMA_RESOLVE_TIMEOUT	(5*HZ)	/* TBD 5 seconds */
+#define RDMA_CONNECT_RETRY_MAX	(2)	/* retries if no listener backlog */
+
+/* memory registration strategies */
+#define RPCRDMA_PERSISTENT_REGISTRATION (1)
+
+enum rpcrdma_memreg {
+	RPCRDMA_BOUNCEBUFFERS = 0,
+	RPCRDMA_REGISTER,
+	RPCRDMA_MEMWINDOWS,
+	RPCRDMA_MEMWINDOWS_ASYNC,
+	RPCRDMA_MTHCAFMR,
+	RPCRDMA_ALLPHYSICAL,
+	RPCRDMA_LAST
+};
+
+#endif /* _LINUX_SUNRPC_XPRTRDMA_H */
diff --git a/include/linux/sunrpc/xprtsock.h b/include/linux/sunrpc/xprtsock.h
new file mode 100644
index 000000000000..2c6c2c2783d8
--- /dev/null
+++ b/include/linux/sunrpc/xprtsock.h
@@ -0,0 +1,51 @@
+/*
+ *  linux/include/linux/sunrpc/xprtsock.h
+ *
+ *  Declarations for the RPC transport socket provider.
+ */
+
+#ifndef _LINUX_SUNRPC_XPRTSOCK_H
+#define _LINUX_SUNRPC_XPRTSOCK_H
+
+#ifdef __KERNEL__
+
+/*
+ * Socket transport setup operations
+ */
+struct rpc_xprt *xs_setup_udp(struct xprt_create *args);
+struct rpc_xprt *xs_setup_tcp(struct xprt_create *args);
+
+int		init_socket_xprt(void);
+void		cleanup_socket_xprt(void);
+
+/*
+ * RPC transport identifiers for UDP, TCP
+ *
+ * To preserve compatibility with the historical use of raw IP protocol
+ * id's for transport selection, these are specified with the previous
+ * values. No such restriction exists for new transports, except that
+ * they may not collide with these values (17 and 6, respectively).
+ */
+#define XPRT_TRANSPORT_UDP	IPPROTO_UDP
+#define XPRT_TRANSPORT_TCP	IPPROTO_TCP
+
+/*
+ * RPC slot table sizes for UDP, TCP transports
+ */
+extern unsigned int xprt_udp_slot_table_entries;
+extern unsigned int xprt_tcp_slot_table_entries;
+
+/*
+ * Parameters for choosing a free port
+ */
+extern unsigned int xprt_min_resvport;
+extern unsigned int xprt_max_resvport;
+
+#define RPC_MIN_RESVPORT	(1U)
+#define RPC_MAX_RESVPORT	(65535U)
+#define RPC_DEF_MIN_RESVPORT	(665U)
+#define RPC_DEF_MAX_RESVPORT	(1023U)
+
+#endif /* __KERNEL__ */
+
+#endif /* _LINUX_SUNRPC_XPRTSOCK_H */
diff --git a/include/linux/writeback.h b/include/linux/writeback.h
index c7c3337c3a88..d1321a81c9c4 100644
--- a/include/linux/writeback.h
+++ b/include/linux/writeback.h
@@ -62,8 +62,6 @@ struct writeback_control {
 	unsigned for_reclaim:1;		/* Invoked from the page allocator */
 	unsigned for_writepages:1;	/* This is a writepages() call */
 	unsigned range_cyclic:1;	/* range_start is cyclic */
-
-	void *fs_private;		/* For use by ->writepages() */
 };
 
 /*