Merge ../bleed-2.6

9 files changed, 224 insertions, 112 deletions

diff --git a/include/linux/sunrpc/auth.h b/include/linux/sunrpc/auth.h
index 04ebc24db348..b68c11a2d6dd 100644
--- a/include/linux/sunrpc/auth.h
+++ b/include/linux/sunrpc/auth.h
@@ -66,7 +66,12 @@ struct rpc_cred_cache {
 
 struct rpc_auth {
         unsigned int            au_cslack;      /* call cred size estimate */
-        unsigned int            au_rslack;      /* reply verf size guess */
+                                /* guess at number of u32's auth adds before
+                                 * reply data; normally the verifier size: */
+        unsigned int            au_rslack;
+                                /* for gss, used to calculate au_rslack: */
+        unsigned int            au_verfsize;
+
         unsigned int            au_flags;       /* various flags */
         struct rpc_authops *    au_ops;         /* operations */
         rpc_authflavor_t        au_flavor;      /* pseudoflavor (note may
diff --git a/include/linux/sunrpc/debug.h b/include/linux/sunrpc/debug.h
index eadb31e3c198..1a42d902bc11 100644
--- a/include/linux/sunrpc/debug.h
+++ b/include/linux/sunrpc/debug.h
@@ -32,6 +32,7 @@
 #define RPCDBG_AUTH             0x0010
 #define RPCDBG_PMAP             0x0020
 #define RPCDBG_SCHED            0x0040
+#define RPCDBG_TRANS            0x0080
 #define RPCDBG_SVCSOCK          0x0100
 #define RPCDBG_SVCDSP           0x0200
 #define RPCDBG_MISC             0x0400
@@ -94,6 +95,8 @@ enum {
         CTL_NLMDEBUG,
         CTL_SLOTTABLE_UDP,
         CTL_SLOTTABLE_TCP,
+        CTL_MIN_RESVPORT,
+        CTL_MAX_RESVPORT,
 };
 
 #endif /* _LINUX_SUNRPC_DEBUG_H_ */
diff --git a/include/linux/sunrpc/gss_api.h b/include/linux/sunrpc/gss_api.h
index 689262f63059..9b8bcf125c18 100644
--- a/include/linux/sunrpc/gss_api.h
+++ b/include/linux/sunrpc/gss_api.h
@@ -40,14 +40,21 @@ int gss_import_sec_context(
                 struct gss_ctx          **ctx_id);
 u32 gss_get_mic(
                 struct gss_ctx          *ctx_id,
-                u32                     qop,
                 struct xdr_buf          *message,
                 struct xdr_netobj       *mic_token);
 u32 gss_verify_mic(
                 struct gss_ctx          *ctx_id,
                 struct xdr_buf          *message,
-                struct xdr_netobj       *mic_token,
-                u32                     *qstate);
+                struct xdr_netobj       *mic_token);
+u32 gss_wrap(
+                struct gss_ctx          *ctx_id,
+                int                     offset,
+                struct xdr_buf          *outbuf,
+                struct page             **inpages);
+u32 gss_unwrap(
+                struct gss_ctx          *ctx_id,
+                int                     offset,
+                struct xdr_buf          *inbuf);
 u32 gss_delete_sec_context(
                 struct gss_ctx          **ctx_id);
 
@@ -56,7 +63,6 @@ char *gss_service_to_auth_domain_name(struct gss_api_mech *, u32 service);
 
 struct pf_desc {
         u32     pseudoflavor;
-        u32     qop;
         u32     service;
         char    *name;
         char    *auth_domain_name;
@@ -85,14 +91,21 @@ struct gss_api_ops {
                         struct gss_ctx          *ctx_id);
         u32 (*gss_get_mic)(
                         struct gss_ctx          *ctx_id,
-                        u32                     qop, 
                         struct xdr_buf          *message,
                         struct xdr_netobj       *mic_token);
         u32 (*gss_verify_mic)(
                         struct gss_ctx          *ctx_id,
                         struct xdr_buf          *message,
-                        struct xdr_netobj       *mic_token,
-                        u32                     *qstate);
+                        struct xdr_netobj       *mic_token);
+        u32 (*gss_wrap)(
+                        struct gss_ctx          *ctx_id,
+                        int                     offset,
+                        struct xdr_buf          *outbuf,
+                        struct page             **inpages);
+        u32 (*gss_unwrap)(
+                        struct gss_ctx          *ctx_id,
+                        int                     offset,
+                        struct xdr_buf          *buf);
         void (*gss_delete_sec_context)(
                         void                    *internal_ctx_id);
 };
diff --git a/include/linux/sunrpc/gss_err.h b/include/linux/sunrpc/gss_err.h
index 92608a2e574c..a6807867bd21 100644
--- a/include/linux/sunrpc/gss_err.h
+++ b/include/linux/sunrpc/gss_err.h
@@ -66,16 +66,6 @@ typedef unsigned int OM_uint32;
 
 
 /*
- * Define the default Quality of Protection for per-message services.  Note
- * that an implementation that offers multiple levels of QOP may either reserve
- * a value (for example zero, as assumed here) to mean "default protection", or
- * alternatively may simply equate GSS_C_QOP_DEFAULT to a specific explicit
- * QOP value.  However a value of 0 should always be interpreted by a GSSAPI
- * implementation as a request for the default protection level.
- */
-#define GSS_C_QOP_DEFAULT 0
-
-/*
  * Expiration time of 2^32-1 seconds means infinite lifetime for a
  * credential or security context
  */
diff --git a/include/linux/sunrpc/gss_krb5.h b/include/linux/sunrpc/gss_krb5.h
index ffe31d2eb9ec..2c3601d31045 100644
--- a/include/linux/sunrpc/gss_krb5.h
+++ b/include/linux/sunrpc/gss_krb5.h
@@ -116,18 +116,22 @@ enum seal_alg {
 
 s32
 make_checksum(s32 cksumtype, char *header, int hdrlen, struct xdr_buf *body,
-                   struct xdr_netobj *cksum);
+                   int body_offset, struct xdr_netobj *cksum);
+
+u32 gss_get_mic_kerberos(struct gss_ctx *, struct xdr_buf *,
+                struct xdr_netobj *);
+
+u32 gss_verify_mic_kerberos(struct gss_ctx *, struct xdr_buf *,
+                struct xdr_netobj *);
 
 u32
-krb5_make_token(struct krb5_ctx *context_handle, int qop_req,
-        struct xdr_buf *input_message_buffer,
-        struct xdr_netobj *output_message_buffer, int toktype);
+gss_wrap_kerberos(struct gss_ctx *ctx_id, int offset,
+                struct xdr_buf *outbuf, struct page **pages);
 
 u32
-krb5_read_token(struct krb5_ctx *context_handle,
-          struct xdr_netobj *input_token_buffer,
-          struct xdr_buf *message_buffer,
-          int *qop_state, int toktype);
+gss_unwrap_kerberos(struct gss_ctx *ctx_id, int offset,
+                struct xdr_buf *buf);
+
 
 u32
 krb5_encrypt(struct crypto_tfm * key,
@@ -137,6 +141,13 @@ u32
 krb5_decrypt(struct crypto_tfm * key,
              void *iv, void *in, void *out, int length); 
 
+int
+gss_encrypt_xdr_buf(struct crypto_tfm *tfm, struct xdr_buf *outbuf, int offset,
+                struct page **pages);
+
+int
+gss_decrypt_xdr_buf(struct crypto_tfm *tfm, struct xdr_buf *inbuf, int offset);
+
 s32
 krb5_make_seq_num(struct crypto_tfm * key,
                 int direction,
diff --git a/include/linux/sunrpc/gss_spkm3.h b/include/linux/sunrpc/gss_spkm3.h
index b5c9968c3c17..0beb2cf00a84 100644
--- a/include/linux/sunrpc/gss_spkm3.h
+++ b/include/linux/sunrpc/gss_spkm3.h
@@ -41,9 +41,9 @@ struct spkm3_ctx {
 #define SPKM_WRAP_TOK   5
 #define SPKM_DEL_TOK    6
 
-u32 spkm3_make_token(struct spkm3_ctx *ctx, int qop_req, struct xdr_buf * text, struct xdr_netobj * token, int toktype);
+u32 spkm3_make_token(struct spkm3_ctx *ctx, struct xdr_buf * text, struct xdr_netobj * token, int toktype);
 
-u32 spkm3_read_token(struct spkm3_ctx *ctx, struct xdr_netobj *read_token, struct xdr_buf *message_buffer, int *qop_state, int toktype);
+u32 spkm3_read_token(struct spkm3_ctx *ctx, struct xdr_netobj *read_token, struct xdr_buf *message_buffer, int toktype);
 
 #define CKSUMTYPE_RSA_MD5            0x0007
 
diff --git a/include/linux/sunrpc/msg_prot.h b/include/linux/sunrpc/msg_prot.h
index 15f115332389..f43f237360ae 100644
--- a/include/linux/sunrpc/msg_prot.h
+++ b/include/linux/sunrpc/msg_prot.h
@@ -76,5 +76,30 @@ enum rpc_auth_stat {
 
 #define RPC_MAXNETNAMELEN       256
 
+/*
+ * From RFC 1831:
+ *
+ * "A record is composed of one or more record fragments.  A record
+ *  fragment is a four-byte header followed by 0 to (2**31) - 1 bytes of
+ *  fragment data.  The bytes encode an unsigned binary number; as with
+ *  XDR integers, the byte order is from highest to lowest.  The number
+ *  encodes two values -- a boolean which indicates whether the fragment
+ *  is the last fragment of the record (bit value 1 implies the fragment
+ *  is the last fragment) and a 31-bit unsigned binary value which is the
+ *  length in bytes of the fragment's data.  The boolean value is the
+ *  highest-order bit of the header; the length is the 31 low-order bits.
+ *  (Note that this record specification is NOT in XDR standard form!)"
+ *
+ * The Linux RPC client always sends its requests in a single record
+ * fragment, limiting the maximum payload size for stream transports to
+ * 2GB.
+ */
+
+typedef u32     rpc_fraghdr;
+
+#define RPC_LAST_STREAM_FRAGMENT        (1U << 31)
+#define RPC_FRAGMENT_SIZE_MASK          (~RPC_LAST_STREAM_FRAGMENT)
+#define RPC_MAX_FRAGMENT_SIZE           ((1U << 31) - 1)
+
 #endif /* __KERNEL__ */
 #endif /* _LINUX_SUNRPC_MSGPROT_H_ */
diff --git a/include/linux/sunrpc/xdr.h b/include/linux/sunrpc/xdr.h
index 23448d0fb5bc..5da968729cf8 100644
--- a/include/linux/sunrpc/xdr.h
+++ b/include/linux/sunrpc/xdr.h
@@ -161,14 +161,10 @@ typedef struct {
 
 typedef size_t (*skb_read_actor_t)(skb_reader_t *desc, void *to, size_t len);
 
+extern int csum_partial_copy_to_xdr(struct xdr_buf *, struct sk_buff *);
 extern ssize_t xdr_partial_copy_from_skb(struct xdr_buf *, unsigned int,
                 skb_reader_t *, skb_read_actor_t);
 
-struct socket;
-struct sockaddr;
-extern int xdr_sendpages(struct socket *, struct sockaddr *, int,
-                struct xdr_buf *, unsigned int, int);
-
 extern int xdr_encode_word(struct xdr_buf *, int, u32);
 extern int xdr_decode_word(struct xdr_buf *, int, u32 *);
 
diff --git a/include/linux/sunrpc/xprt.h b/include/linux/sunrpc/xprt.h
index e618c1649814..3b8b6e823c70 100644
--- a/include/linux/sunrpc/xprt.h
+++ b/include/linux/sunrpc/xprt.h
@@ -1,5 +1,5 @@
 /*
- *  linux/include/linux/sunrpc/clnt_xprt.h
+ *  linux/include/linux/sunrpc/xprt.h
  *
  *  Declarations for the RPC transport interface.
  *
@@ -15,20 +15,6 @@
 #include <linux/sunrpc/sched.h>
 #include <linux/sunrpc/xdr.h>
 
-/*
- * The transport code maintains an estimate on the maximum number of out-
- * standing RPC requests, using a smoothed version of the congestion
- * avoidance implemented in 44BSD. This is basically the Van Jacobson
- * congestion algorithm: If a retransmit occurs, the congestion window is
- * halved; otherwise, it is incremented by 1/cwnd when
- *
- *      -       a reply is received and
- *      -       a full number of requests are outstanding and
- *      -       the congestion window hasn't been updated recently.
- *
- * Upper procedures may check whether a request would block waiting for
- * a free RPC slot by using the RPC_CONGESTED() macro.
- */
 extern unsigned int xprt_udp_slot_table_entries;
 extern unsigned int xprt_tcp_slot_table_entries;
 
@@ -36,34 +22,23 @@ extern unsigned int xprt_tcp_slot_table_entries;
 #define RPC_DEF_SLOT_TABLE      (16U)
 #define RPC_MAX_SLOT_TABLE      (128U)
 
-#define RPC_CWNDSHIFT           (8U)
-#define RPC_CWNDSCALE           (1U << RPC_CWNDSHIFT)
-#define RPC_INITCWND            RPC_CWNDSCALE
-#define RPC_MAXCWND(xprt)       ((xprt)->max_reqs << RPC_CWNDSHIFT)
-#define RPCXPRT_CONGESTED(xprt) ((xprt)->cong >= (xprt)->cwnd)
-
-/* Default timeout values */
-#define RPC_MAX_UDP_TIMEOUT     (60*HZ)
-#define RPC_MAX_TCP_TIMEOUT     (600*HZ)
-
 /*
- * Wait duration for an RPC TCP connection to be established.  Solaris
- * NFS over TCP uses 60 seconds, for example, which is in line with how
- * long a server takes to reboot.
+ * RPC call and reply header size as number of 32bit words (verifier
+ * size computed separately)
  */
-#define RPC_CONNECT_TIMEOUT     (60*HZ)
+#define RPC_CALLHDRSIZE         6
+#define RPC_REPHDRSIZE          4
 
 /*
- * Delay an arbitrary number of seconds before attempting to reconnect
- * after an error.
+ * Parameters for choosing a free port
  */
-#define RPC_REESTABLISH_TIMEOUT (15*HZ)
+extern unsigned int xprt_min_resvport;
+extern unsigned int xprt_max_resvport;
 
-/* RPC call and reply header size as number of 32bit words (verifier
- * size computed separately)
- */
-#define RPC_CALLHDRSIZE         6
-#define RPC_REPHDRSIZE          4
+#define RPC_MIN_RESVPORT        (1U)
+#define RPC_MAX_RESVPORT        (65535U)
+#define RPC_DEF_MIN_RESVPORT    (650U)
+#define RPC_DEF_MAX_RESVPORT    (1023U)
 
 /*
  * This describes a timeout strategy
@@ -76,6 +51,9 @@ struct rpc_timeout {
         unsigned char           to_exponential;
 };
 
+struct rpc_task;
+struct rpc_xprt;
+
 /*
  * This describes a complete RPC request
  */
@@ -95,7 +73,10 @@ struct rpc_rqst {
         int                     rq_cong;        /* has incremented xprt->cong */
         int                     rq_received;    /* receive completed */
         u32                     rq_seqno;       /* gss seq no. used on req. */
-
+        int                     rq_enc_pages_num;
+        struct page             **rq_enc_pages; /* scratch pages for use by
+                                                   gss privacy code */
+        void (*rq_release_snd_buf)(struct rpc_rqst *); /* release rq_enc_pages */
         struct list_head        rq_list;
 
         struct xdr_buf          rq_private_buf;         /* The receive buffer
@@ -121,12 +102,21 @@ struct rpc_rqst {
 #define rq_svec                 rq_snd_buf.head
 #define rq_slen                 rq_snd_buf.len
 
-#define XPRT_LAST_FRAG          (1 << 0)
-#define XPRT_COPY_RECM          (1 << 1)
-#define XPRT_COPY_XID           (1 << 2)
-#define XPRT_COPY_DATA          (1 << 3)
+struct rpc_xprt_ops {
+        void            (*set_buffer_size)(struct rpc_xprt *xprt, size_t sndsize, size_t rcvsize);
+        int             (*reserve_xprt)(struct rpc_task *task);
+        void            (*release_xprt)(struct rpc_xprt *xprt, struct rpc_task *task);
+        void            (*connect)(struct rpc_task *task);
+        int             (*send_request)(struct rpc_task *task);
+        void            (*set_retrans_timeout)(struct rpc_task *task);
+        void            (*timer)(struct rpc_task *task);
+        void            (*release_request)(struct rpc_task *task);
+        void            (*close)(struct rpc_xprt *xprt);
+        void            (*destroy)(struct rpc_xprt *xprt);
+};
 
 struct rpc_xprt {
+        struct rpc_xprt_ops *   ops;            /* transport methods */
         struct socket *         sock;           /* BSD socket layer */
         struct sock *           inet;           /* INET layer */
 
@@ -137,11 +127,13 @@ struct rpc_xprt {
         unsigned long           cong;           /* current congestion */
         unsigned long           cwnd;           /* congestion window */
 
-        unsigned int            rcvsize,        /* socket receive buffer size */
-                                sndsize;        /* socket send buffer size */
+        size_t                  rcvsize,        /* transport rcv buffer size */
+                                sndsize;        /* transport send buffer size */
 
         size_t                  max_payload;    /* largest RPC payload size,
                                                    in bytes */
+        unsigned int            tsh_size;       /* size of transport specific
+                                                   header */
 
         struct rpc_wait_queue   sending;        /* requests waiting to send */
         struct rpc_wait_queue   resend;         /* requests waiting to resend */
@@ -150,11 +142,9 @@ struct rpc_xprt {
         struct list_head        free;           /* free slots */
         struct rpc_rqst *       slot;           /* slot table storage */
         unsigned int            max_reqs;       /* total slots */
-        unsigned long           sockstate;      /* Socket state */
+        unsigned long           state;          /* transport state */
         unsigned char           shutdown   : 1, /* being shut down */
-                                nocong     : 1, /* no congestion control */
-                                resvport   : 1, /* use a reserved port */
-                                stream     : 1; /* TCP */
+                                resvport   : 1; /* use a reserved port */
 
         /*
          * XID
@@ -171,22 +161,27 @@ struct rpc_xprt {
         unsigned long           tcp_copied,     /* copied to request */
                                 tcp_flags;
         /*
-         * Connection of sockets
+         * Connection of transports
          */
-        struct work_struct      sock_connect;
+        unsigned long           connect_timeout,
+                                bind_timeout,
+                                reestablish_timeout;
+        struct work_struct      connect_worker;
         unsigned short          port;
+
         /*
-         * Disconnection of idle sockets
+         * Disconnection of idle transports
          */
         struct work_struct      task_cleanup;
         struct timer_list       timer;
-        unsigned long           last_used;
+        unsigned long           last_used,
+                                idle_timeout;
 
         /*
          * Send stuff
          */
-        spinlock_t              sock_lock;      /* lock socket info */
-        spinlock_t              xprt_lock;      /* lock xprt info */
+        spinlock_t              transport_lock; /* lock transport info */
+        spinlock_t              reserve_lock;   /* lock slot table */
         struct rpc_task *       snd_task;       /* Task blocked in send */
 
         struct list_head        recv;
@@ -195,37 +190,111 @@ struct rpc_xprt {
         void                    (*old_data_ready)(struct sock *, int);
         void                    (*old_state_change)(struct sock *);
         void                    (*old_write_space)(struct sock *);
-
-        wait_queue_head_t       cong_wait;
 };
 
+#define XPRT_LAST_FRAG          (1 << 0)
+#define XPRT_COPY_RECM          (1 << 1)
+#define XPRT_COPY_XID           (1 << 2)
+#define XPRT_COPY_DATA          (1 << 3)
+
 #ifdef __KERNEL__
 
-struct rpc_xprt *       xprt_create_proto(int proto, struct sockaddr_in *addr,
-                                        struct rpc_timeout *toparms);
-int                     xprt_destroy(struct rpc_xprt *);
-void                    xprt_set_timeout(struct rpc_timeout *, unsigned int,
-                                        unsigned long);
+/*
+ * Transport operations used by ULPs
+ */
+struct rpc_xprt *       xprt_create_proto(int proto, struct sockaddr_in *addr, struct rpc_timeout *to);
+void                    xprt_set_timeout(struct rpc_timeout *to, unsigned int retr, unsigned long incr);
 
-void                    xprt_reserve(struct rpc_task *);
-int                     xprt_prepare_transmit(struct rpc_task *);
-void                    xprt_transmit(struct rpc_task *);
-void                    xprt_receive(struct rpc_task *);
+/*
+ * Generic internal transport functions
+ */
+void                    xprt_connect(struct rpc_task *task);
+void                    xprt_reserve(struct rpc_task *task);
+int                     xprt_reserve_xprt(struct rpc_task *task);
+int                     xprt_reserve_xprt_cong(struct rpc_task *task);
+int                     xprt_prepare_transmit(struct rpc_task *task);
+void                    xprt_transmit(struct rpc_task *task);
+void                    xprt_abort_transmit(struct rpc_task *task);
 int                     xprt_adjust_timeout(struct rpc_rqst *req);
-void                    xprt_release(struct rpc_task *);
-void                    xprt_connect(struct rpc_task *);
-void                    xprt_sock_setbufsize(struct rpc_xprt *);
-
-#define XPRT_LOCKED     0
-#define XPRT_CONNECT    1
-#define XPRT_CONNECTING 2
-
-#define xprt_connected(xp)              (test_bit(XPRT_CONNECT, &(xp)->sockstate))
-#define xprt_set_connected(xp)          (set_bit(XPRT_CONNECT, &(xp)->sockstate))
-#define xprt_test_and_set_connected(xp) (test_and_set_bit(XPRT_CONNECT, &(xp)->sockstate))
-#define xprt_test_and_clear_connected(xp) \
-                                        (test_and_clear_bit(XPRT_CONNECT, &(xp)->sockstate))
-#define xprt_clear_connected(xp)        (clear_bit(XPRT_CONNECT, &(xp)->sockstate))
+void                    xprt_release_xprt(struct rpc_xprt *xprt, struct rpc_task *task);
+void                    xprt_release_xprt_cong(struct rpc_xprt *xprt, struct rpc_task *task);
+void                    xprt_release(struct rpc_task *task);
+int                     xprt_destroy(struct rpc_xprt *xprt);
+
+static inline u32 *xprt_skip_transport_header(struct rpc_xprt *xprt, u32 *p)
+{
+        return p + xprt->tsh_size;
+}
+
+/*
+ * Transport switch helper functions
+ */
+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);
+void                    xprt_wait_for_buffer_space(struct rpc_task *task);
+void                    xprt_write_space(struct rpc_xprt *xprt);
+void                    xprt_update_rtt(struct rpc_task *task);
+void                    xprt_adjust_cwnd(struct rpc_task *task, int result);
+struct rpc_rqst *       xprt_lookup_rqst(struct rpc_xprt *xprt, u32 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);
+
+/*
+ * Socket transport setup operations
+ */
+int                     xs_setup_udp(struct rpc_xprt *xprt, struct rpc_timeout *to);
+int                     xs_setup_tcp(struct rpc_xprt *xprt, struct rpc_timeout *to);
+
+/*
+ * Reserved bit positions in xprt->state
+ */
+#define XPRT_LOCKED             (0)
+#define XPRT_CONNECTED          (1)
+#define XPRT_CONNECTING         (2)
+
+static inline void xprt_set_connected(struct rpc_xprt *xprt)
+{
+        set_bit(XPRT_CONNECTED, &xprt->state);
+}
+
+static inline void xprt_clear_connected(struct rpc_xprt *xprt)
+{
+        clear_bit(XPRT_CONNECTED, &xprt->state);
+}
+
+static inline int xprt_connected(struct rpc_xprt *xprt)
+{
+        return test_bit(XPRT_CONNECTED, &xprt->state);
+}
+
+static inline int xprt_test_and_set_connected(struct rpc_xprt *xprt)
+{
+        return test_and_set_bit(XPRT_CONNECTED, &xprt->state);
+}
+
+static inline int xprt_test_and_clear_connected(struct rpc_xprt *xprt)
+{
+        return test_and_clear_bit(XPRT_CONNECTED, &xprt->state);
+}
+
+static inline void xprt_clear_connecting(struct rpc_xprt *xprt)
+{
+        smp_mb__before_clear_bit();
+        clear_bit(XPRT_CONNECTING, &xprt->state);
+        smp_mb__after_clear_bit();
+}
+
+static inline int xprt_connecting(struct rpc_xprt *xprt)
+{
+        return test_bit(XPRT_CONNECTING, &xprt->state);
+}
+
+static inline int xprt_test_and_set_connecting(struct rpc_xprt *xprt)
+{
+        return test_and_set_bit(XPRT_CONNECTING, &xprt->state);
+}
 
 #endif /* __KERNEL__*/