1 files changed, 73 insertions, 16 deletions

diff --git a/include/linux/nfs_fs_sb.h b/include/linux/nfs_fs_sb.h
index 6b4a13c79474..7ccfc7ef0a83 100644
--- a/include/linux/nfs_fs_sb.h
+++ b/include/linux/nfs_fs_sb.h
@@ -7,13 +7,79 @@
 struct nfs_iostats;
 
 /*
+ * The nfs_client identifies our client state to the server.
+ */
+struct nfs_client {
+        atomic_t                cl_count;
+        int                     cl_cons_state;  /* current construction state (-ve: init error) */
+#define NFS_CS_READY            0               /* ready to be used */
+#define NFS_CS_INITING          1               /* busy initialising */
+        int                     cl_nfsversion;  /* NFS protocol version */
+        unsigned long           cl_res_state;   /* NFS resources state */
+#define NFS_CS_RPCIOD           0               /* - rpciod started */
+#define NFS_CS_CALLBACK         1               /* - callback started */
+#define NFS_CS_IDMAP            2               /* - idmap started */
+#define NFS_CS_RENEWD           3               /* - renewd started */
+        struct sockaddr_in      cl_addr;        /* server identifier */
+        char *                  cl_hostname;    /* hostname of server */
+        struct list_head        cl_share_link;  /* link in global client list */
+        struct list_head        cl_superblocks; /* List of nfs_server structs */
+
+        struct rpc_clnt *       cl_rpcclient;
+        const struct nfs_rpc_ops *rpc_ops;      /* NFS protocol vector */
+        unsigned long           retrans_timeo;  /* retransmit timeout */
+        unsigned int            retrans_count;  /* number of retransmit tries */
+
+#ifdef CONFIG_NFS_V4
+        u64                     cl_clientid;    /* constant */
+        nfs4_verifier           cl_confirm;
+        unsigned long           cl_state;
+
+        u32                     cl_lockowner_id;
+
+        /*
+         * The following rwsem ensures exclusive access to the server
+         * while we recover the state following a lease expiration.
+         */
+        struct rw_semaphore     cl_sem;
+
+        struct list_head        cl_delegations;
+        struct list_head        cl_state_owners;
+        struct list_head        cl_unused;
+        int                     cl_nunused;
+        spinlock_t              cl_lock;
+
+        unsigned long           cl_lease_time;
+        unsigned long           cl_last_renewal;
+        struct work_struct      cl_renewd;
+
+        struct rpc_wait_queue   cl_rpcwaitq;
+
+        /* used for the setclientid verifier */
+        struct timespec         cl_boot_time;
+
+        /* idmapper */
+        struct idmap *          cl_idmap;
+
+        /* Our own IP address, as a null-terminated string.
+         * This is used to generate the clientid, and the callback address.
+         */
+        char                    cl_ipaddr[16];
+        unsigned char           cl_id_uniquifier;
+#endif
+};
+
+/*
  * NFS client parameters stored in the superblock.
  */
 struct nfs_server {
+        struct nfs_client *     nfs_client;     /* shared client and NFS4 state */
+        struct list_head        client_link;    /* List of other nfs_server structs
+                                                 * that share the same client
+                                                 */
+        struct list_head        master_link;    /* link in master servers list */
         struct rpc_clnt *       client;         /* RPC client handle */
-        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 */
@@ -29,24 +95,14 @@ 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;
+
         struct nfs_fsid         fsid;
+        __u64                   maxfilesize;    /* maximum file size */
         unsigned long           mount_time;     /* when this fs was mounted */
+        dev_t                   s_dev;          /* superblock dev numbers */
+
 #ifdef CONFIG_NFS_V4
-        /* Our own IP address, as a null-terminated string.
-         * This is used to generate the clientid, and the callback address.
-         */
-        char                    ip_addr[16];
-        char *                  mnt_path;
-        struct nfs4_client *    nfs4_state;     /* all NFSv4 state starts here */
-        struct list_head        nfs4_siblings;  /* List of other nfs_server structs
-                                                 * that share the same clientid
-                                                 */
         u32                     attr_bitmask[2];/* V4 bitmask representing the set
                                                    of attributes supported on this
                                                    filesystem */
@@ -54,6 +110,7 @@ struct nfs_server {
                                                    that are supported on this
                                                    filesystem */
 #endif
+        void (*destroy)(struct nfs_server *);
 };
 
 /* Server capabilities */