Merge branch 'for-2.6.27' of git://linux-nfs.org/~bfields/linux

* 'for-2.6.27' of git://linux-nfs.org/~bfields/linux: (51 commits)
  nfsd: nfs4xdr.c do-while is not a compound statement
  nfsd: Use C99 initializers in fs/nfsd/nfs4xdr.c
  lockd: Pass "struct sockaddr *" to new failover-by-IP function
  lockd: get host reference in nlmsvc_create_block() instead of callers
  lockd: minor svclock.c style fixes
  lockd: eliminate duplicate nlmsvc_lookup_host call from nlmsvc_lock
  lockd: eliminate duplicate nlmsvc_lookup_host call from nlmsvc_testlock
  lockd: nlm_release_host() checks for NULL, caller needn't
  file lock: reorder struct file_lock to save space on 64 bit builds
  nfsd: take file and mnt write in nfs4_upgrade_open
  nfsd: document open share bit tracking
  nfsd: tabulate nfs4 xdr encoding functions
  nfsd: dprint operation names
  svcrdma: Change WR context get/put to use the kmem cache
  svcrdma: Create a kmem cache for the WR contexts
  svcrdma: Add flush_scheduled_work to module exit function
  svcrdma: Limit ORD based on client's advertised IRD
  svcrdma: Remove unused wait q from svcrdma_xprt structure
  svcrdma: Remove unneeded spin locks from __svc_rdma_free
  svcrdma: Add dma map count and WARN_ON
  ...

8 files changed, 56 insertions, 34 deletions

diff --git a/include/linux/fs.h b/include/linux/fs.h
index c6455dadb21b..9c2ac5c0ef5c 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -918,12 +918,12 @@ struct file_lock {
 	struct list_head fl_link;	/* doubly linked list of all locks */
 	struct list_head fl_block;	/* circular list of blocked processes */
 	fl_owner_t fl_owner;
+	unsigned char fl_flags;
+	unsigned char fl_type;
 	unsigned int fl_pid;
 	struct pid *fl_nspid;
 	wait_queue_head_t fl_wait;
 	struct file *fl_file;
-	unsigned char fl_flags;
-	unsigned char fl_type;
 	loff_t fl_start;
 	loff_t fl_end;
 
diff --git a/include/linux/lockd/lockd.h b/include/linux/lockd/lockd.h
index 102d928f7206..dbb87ab282e8 100644
--- a/include/linux/lockd/lockd.h
+++ b/include/linux/lockd/lockd.h
@@ -200,10 +200,12 @@ typedef int	  (*nlm_host_match_fn_t)(void *cur, struct nlm_host *ref);
  * Server-side lock handling
  */
 __be32		  nlmsvc_lock(struct svc_rqst *, struct nlm_file *,
-					struct nlm_lock *, int, struct nlm_cookie *);
+			      struct nlm_host *, struct nlm_lock *, int,
+			      struct nlm_cookie *);
 __be32		  nlmsvc_unlock(struct nlm_file *, struct nlm_lock *);
 __be32		  nlmsvc_testlock(struct svc_rqst *, struct nlm_file *,
-			struct nlm_lock *, struct nlm_lock *, struct nlm_cookie *);
+			struct nlm_host *, struct nlm_lock *,
+			struct nlm_lock *, struct nlm_cookie *);
 __be32		  nlmsvc_cancel_blocked(struct nlm_file *, struct nlm_lock *);
 unsigned long	  nlmsvc_retry_blocked(void);
 void		  nlmsvc_traverse_blocks(struct nlm_host *, struct nlm_file *,
@@ -224,7 +226,7 @@ void		  nlmsvc_invalidate_all(void);
  * Cluster failover support
  */
 int           nlmsvc_unlock_all_by_sb(struct super_block *sb);
-int           nlmsvc_unlock_all_by_ip(__be32 server_addr);
+int           nlmsvc_unlock_all_by_ip(struct sockaddr *server_addr);
 
 static inline struct inode *nlmsvc_file_inode(struct nlm_file *file)
 {
diff --git a/include/linux/nfs4.h b/include/linux/nfs4.h
index 8726491de154..ea0366769484 100644
--- a/include/linux/nfs4.h
+++ b/include/linux/nfs4.h
@@ -65,9 +65,6 @@
 #define NFS4_ACE_SUCCESSFUL_ACCESS_ACE_FLAG   0x00000010
 #define NFS4_ACE_FAILED_ACCESS_ACE_FLAG       0x00000020
 #define NFS4_ACE_IDENTIFIER_GROUP             0x00000040
-#define NFS4_ACE_OWNER                        0x00000080
-#define NFS4_ACE_GROUP                        0x00000100
-#define NFS4_ACE_EVERYONE                     0x00000200
 
 #define NFS4_ACE_READ_DATA                    0x00000001
 #define NFS4_ACE_LIST_DIRECTORY               0x00000001
diff --git a/include/linux/nfsd/nfsd.h b/include/linux/nfsd/nfsd.h
index 41d30c9c9de6..a2861d95ecc3 100644
--- a/include/linux/nfsd/nfsd.h
+++ b/include/linux/nfsd/nfsd.h
@@ -28,20 +28,20 @@
 #define NFSD_SUPPORTED_MINOR_VERSION	0
 
 /*
- * Special flags for nfsd_permission. These must be different from MAY_READ,
- * MAY_WRITE, and MAY_EXEC.
+ * Flags for nfsd_permission
  */
-#define MAY_NOP			0
-#define MAY_SATTR		8
-#define MAY_TRUNC		16
-#define MAY_LOCK		32
-#define MAY_OWNER_OVERRIDE	64
-#define	MAY_LOCAL_ACCESS	128 /* IRIX doing local access check on device special file*/
-#if (MAY_SATTR | MAY_TRUNC | MAY_LOCK | MAY_OWNER_OVERRIDE | MAY_LOCAL_ACCESS) & (MAY_READ | MAY_WRITE | MAY_EXEC)
-# error "please use a different value for MAY_SATTR or MAY_TRUNC or MAY_LOCK or MAY_LOCAL_ACCESS or MAY_OWNER_OVERRIDE."
-#endif
-#define MAY_CREATE		(MAY_EXEC|MAY_WRITE)
-#define MAY_REMOVE		(MAY_EXEC|MAY_WRITE|MAY_TRUNC)
+#define NFSD_MAY_NOP		0
+#define NFSD_MAY_EXEC		1 /* == MAY_EXEC */
+#define NFSD_MAY_WRITE		2 /* == MAY_WRITE */
+#define NFSD_MAY_READ		4 /* == MAY_READ */
+#define NFSD_MAY_SATTR		8
+#define NFSD_MAY_TRUNC		16
+#define NFSD_MAY_LOCK		32
+#define NFSD_MAY_OWNER_OVERRIDE	64
+#define NFSD_MAY_LOCAL_ACCESS	128 /* IRIX doing local access check on device special file*/
+
+#define NFSD_MAY_CREATE		(NFSD_MAY_EXEC|NFSD_MAY_WRITE)
+#define NFSD_MAY_REMOVE		(NFSD_MAY_EXEC|NFSD_MAY_WRITE|NFSD_MAY_TRUNC)
 
 /*
  * Callback function for readdir
@@ -54,6 +54,7 @@ typedef int (*nfsd_dirop_t)(struct inode *, struct dentry *, int, int);
 extern struct svc_program	nfsd_program;
 extern struct svc_version	nfsd_version2, nfsd_version3,
 				nfsd_version4;
+extern struct mutex		nfsd_mutex;
 extern struct svc_serv		*nfsd_serv;
 
 extern struct seq_operations nfs_exports_op;
diff --git a/include/linux/nfsd/state.h b/include/linux/nfsd/state.h
index db348f749376..d0fe2e378452 100644
--- a/include/linux/nfsd/state.h
+++ b/include/linux/nfsd/state.h
@@ -98,8 +98,6 @@ struct nfs4_callback {
 	u32                     cb_ident;
 	/* RPC client info */
 	atomic_t		cb_set;     /* successful CB_NULL call */
-	struct rpc_program      cb_program;
-	struct rpc_stat         cb_stat;
 	struct rpc_clnt *       cb_client;
 };
 
diff --git a/include/linux/sunrpc/gss_krb5.h b/include/linux/sunrpc/gss_krb5.h
index a10f1fb0bf7c..e7bbdba474d5 100644
--- a/include/linux/sunrpc/gss_krb5.h
+++ b/include/linux/sunrpc/gss_krb5.h
@@ -51,6 +51,9 @@ struct krb5_ctx {
 
 extern spinlock_t krb5_seq_lock;
 
+/* The length of the Kerberos GSS token header */
+#define GSS_KRB5_TOK_HDR_LEN	(16)
+
 #define KG_TOK_MIC_MSG    0x0101
 #define KG_TOK_WRAP_MSG   0x0201
 
diff --git a/include/linux/sunrpc/svc.h b/include/linux/sunrpc/svc.h
index 4b54c5fdcfd9..dc69068d94c7 100644
--- a/include/linux/sunrpc/svc.h
+++ b/include/linux/sunrpc/svc.h
@@ -22,7 +22,7 @@
 /*
  * This is the RPC server thread function prototype
  */
-typedef void		(*svc_thread_fn)(struct svc_rqst *);
+typedef int		(*svc_thread_fn)(void *);
 
 /*
  *
@@ -80,7 +80,6 @@ struct svc_serv {
 	struct module *		sv_module;	/* optional module to count when
 						 * adding threads */
 	svc_thread_fn		sv_function;	/* main function for threads */
-	int			sv_kill_signal;	/* signal to kill threads */
 };
 
 /*
@@ -388,8 +387,8 @@ struct svc_rqst *svc_prepare_thread(struct svc_serv *serv,
 					struct svc_pool *pool);
 void		   svc_exit_thread(struct svc_rqst *);
 struct svc_serv *  svc_create_pooled(struct svc_program *, unsigned int,
-			void (*shutdown)(struct svc_serv*),
-			svc_thread_fn, int sig, struct module *);
+			void (*shutdown)(struct svc_serv*), svc_thread_fn,
+			struct module *);
 int		   svc_set_num_threads(struct svc_serv *, struct svc_pool *, int);
 void		   svc_destroy(struct svc_serv *);
 int		   svc_process(struct svc_rqst *);
diff --git a/include/linux/sunrpc/svc_rdma.h b/include/linux/sunrpc/svc_rdma.h
index 05eb4664d0dd..ef2e3a20bf3b 100644
--- a/include/linux/sunrpc/svc_rdma.h
+++ b/include/linux/sunrpc/svc_rdma.h
@@ -72,7 +72,7 @@ extern atomic_t rdma_stat_sq_prod;
  */
 struct svc_rdma_op_ctxt {
 	struct svc_rdma_op_ctxt *read_hdr;
-	struct list_head free_list;
+	int hdr_count;
 	struct xdr_buf arg;
 	struct list_head dto_q;
 	enum ib_wr_opcode wr_op;
@@ -86,6 +86,31 @@ struct svc_rdma_op_ctxt {
 	struct page *pages[RPCSVC_MAXPAGES];
 };
 
+/*
+ * NFS_ requests are mapped on the client side by the chunk lists in
+ * the RPCRDMA header. During the fetching of the RPC from the client
+ * and the writing of the reply to the client, the memory in the
+ * client and the memory in the server must be mapped as contiguous
+ * vaddr/len for access by the hardware. These data strucures keep
+ * these mappings.
+ *
+ * For an RDMA_WRITE, the 'sge' maps the RPC REPLY. For RDMA_READ, the
+ * 'sge' in the svc_rdma_req_map maps the server side RPC reply and the
+ * 'ch' field maps the read-list of the RPCRDMA header to the 'sge'
+ * mapping of the reply.
+ */
+struct svc_rdma_chunk_sge {
+	int start;		/* sge no for this chunk */
+	int count;		/* sge count for this chunk */
+};
+struct svc_rdma_req_map {
+	unsigned long count;
+	union {
+		struct kvec sge[RPCSVC_MAXPAGES];
+		struct svc_rdma_chunk_sge ch[RPCSVC_MAXPAGES];
+	};
+};
+
 #define RDMACTXT_F_LAST_CTXT	2
 
 struct svcxprt_rdma {
@@ -93,7 +118,6 @@ struct svcxprt_rdma {
 	struct rdma_cm_id    *sc_cm_id;		/* RDMA connection id */
 	struct list_head     sc_accept_q;	/* Conn. waiting accept */
 	int		     sc_ord;		/* RDMA read limit */
-	wait_queue_head_t    sc_read_wait;
 	int                  sc_max_sge;
 
 	int                  sc_sq_depth;	/* Depth of SQ */
@@ -104,12 +128,8 @@ struct svcxprt_rdma {
 
 	struct ib_pd         *sc_pd;
 
+	atomic_t	     sc_dma_used;
 	atomic_t	     sc_ctxt_used;
-	struct list_head     sc_ctxt_free;
-	int		     sc_ctxt_cnt;
-	int		     sc_ctxt_bump;
-	int		     sc_ctxt_max;
-	spinlock_t	     sc_ctxt_lock;
 	struct list_head     sc_rq_dto_q;
 	spinlock_t	     sc_rq_dto_lock;
 	struct ib_qp         *sc_qp;
@@ -173,6 +193,8 @@ extern int svc_rdma_post_recv(struct svcxprt_rdma *);
 extern int svc_rdma_create_listen(struct svc_serv *, int, struct sockaddr *);
 extern struct svc_rdma_op_ctxt *svc_rdma_get_context(struct svcxprt_rdma *);
 extern void svc_rdma_put_context(struct svc_rdma_op_ctxt *, int);
+extern struct svc_rdma_req_map *svc_rdma_get_req_map(void);
+extern void svc_rdma_put_req_map(struct svc_rdma_req_map *);
 extern void svc_sq_reap(struct svcxprt_rdma *);
 extern void svc_rq_reap(struct svcxprt_rdma *);
 extern struct svc_xprt_class svc_rdma_class;