Merge branch 'orion-fixes2'

[linux-2.6] / fs / nfs / client.c

diff --git a/fs/nfs/client.c b/fs/nfs/client.c
index 0b3ce86f6fc9526c015195184bc100737699bf99..f2f3b284e6dd203a31c11032a195ecc9f6237f53 100644 (file)
--- a/fs/nfs/client.c
+++ b/fs/nfs/client.c
@@ -112,6 +112,7 @@ struct nfs_client_initdata {
 static struct nfs_client *nfs_alloc_client(const struct nfs_client_initdata *cl_init)
 {
        struct nfs_client *clp;
+       struct rpc_cred *cred;
 
        if ((clp = kzalloc(sizeof(*clp), GFP_KERNEL)) == NULL)
                goto error_0;
@@ -150,6 +151,9 @@ static struct nfs_client *nfs_alloc_client(const struct nfs_client_initdata *cl_
        clp->cl_boot_time = CURRENT_TIME;
        clp->cl_state = 1 << NFS4CLNT_LEASE_EXPIRED;
 #endif
+       cred = rpc_lookup_machine_cred();
+       if (!IS_ERR(cred))
+               clp->cl_machine_cred = cred;
 
        return clp;
 
@@ -170,6 +174,8 @@ static void nfs4_shutdown_client(struct nfs_client *clp)
        BUG_ON(!RB_EMPTY_ROOT(&clp->cl_state_owners));
        if (__test_and_clear_bit(NFS_CS_IDMAP, &clp->cl_res_state))
                nfs_idmap_delete(clp);
+
+       rpc_destroy_wait_queue(&clp->cl_rpcwaitq);
 #endif
 }
 
@@ -189,6 +195,9 @@ static void nfs_free_client(struct nfs_client *clp)
        if (__test_and_clear_bit(NFS_CS_CALLBACK, &clp->cl_res_state))
                nfs_callback_down();
 
+       if (clp->cl_machine_cred != NULL)
+               put_rpccred(clp->cl_machine_cred);
+
        kfree(clp->cl_hostname);
        kfree(clp);
 
@@ -275,6 +284,41 @@ struct nfs_client *nfs_find_client(const struct sockaddr *addr, u32 nfsversion)
        return NULL;
 }
 
+/*
+ * Find a client by IP address and protocol version
+ * - returns NULL if no such client
+ */
+struct nfs_client *nfs_find_client_next(struct nfs_client *clp)
+{
+       struct sockaddr *sap = (struct sockaddr *)&clp->cl_addr;
+       u32 nfsvers = clp->rpc_ops->version;
+
+       spin_lock(&nfs_client_lock);
+       list_for_each_entry_continue(clp, &nfs_client_list, cl_share_link) {
+               struct sockaddr *clap = (struct sockaddr *)&clp->cl_addr;
+
+               /* Don't match clients that failed to initialise properly */
+               if (clp->cl_cons_state != NFS_CS_READY)
+                       continue;
+
+               /* Different NFS versions cannot share the same nfs_client */
+               if (clp->rpc_ops->version != nfsvers)
+                       continue;
+
+               if (sap->sa_family != clap->sa_family)
+                       continue;
+               /* Match only the IP address, not the port number */
+               if (!nfs_sockaddr_match_ipaddr(sap, clap))
+                       continue;
+
+               atomic_inc(&clp->cl_count);
+               spin_unlock(&nfs_client_lock);
+               return clp;
+       }
+       spin_unlock(&nfs_client_lock);
+       return NULL;
+}
+
 /*
  * Find an nfs_client on the list that matches the initialisation data
  * that is supplied.
@@ -351,7 +395,7 @@ found_client:
        if (new)
                nfs_free_client(new);
 
-       error = wait_event_interruptible(nfs_client_active_wq,
+       error = wait_event_killable(nfs_client_active_wq,
                                clp->cl_cons_state != NFS_CS_INITING);
        if (error < 0) {
                nfs_put_client(clp);
@@ -468,18 +512,21 @@ static int nfs_start_lockd(struct nfs_server *server)
 {
        struct nlm_host *host;
        struct nfs_client *clp = server->nfs_client;
-       u32 nfs_version = clp->rpc_ops->version;
-       unsigned short protocol = server->flags & NFS_MOUNT_TCP ?
-                                               IPPROTO_TCP : IPPROTO_UDP;
+       struct nlmclnt_initdata nlm_init = {
+               .hostname       = clp->cl_hostname,
+               .address        = (struct sockaddr *)&clp->cl_addr,
+               .addrlen        = clp->cl_addrlen,
+               .protocol       = server->flags & NFS_MOUNT_TCP ?
+                                               IPPROTO_TCP : IPPROTO_UDP,
+               .nfs_version    = clp->rpc_ops->version,
+       };
 
-       if (nfs_version > 3)
+       if (nlm_init.nfs_version > 3)
                return 0;
        if (server->flags & NFS_MOUNT_NONLM)
                return 0;
 
-       host = nlmclnt_init(clp->cl_hostname,
-                           (struct sockaddr *)&clp->cl_addr,
-                           clp->cl_addrlen, protocol, nfs_version);
+       host = nlmclnt_init(&nlm_init);
        if (IS_ERR(host))
                return PTR_ERR(host);
 
@@ -551,10 +598,6 @@ static int nfs_init_server_rpcclient(struct nfs_server *server,
        if (server->flags & NFS_MOUNT_SOFT)
                server->client->cl_softrtry = 1;
 
-       server->client->cl_intr = 0;
-       if (server->flags & NFS4_MOUNT_INTR)
-               server->client->cl_intr = 1;
-
        return 0;
 }
 
@@ -646,10 +689,22 @@ static int nfs_init_server(struct nfs_server *server,
        if (error < 0)
                goto error;
 
+       server->port = data->nfs_server.port;
+
        error = nfs_init_server_rpcclient(server, &timeparms, data->auth_flavors[0]);
        if (error < 0)
                goto error;
 
+       /* Preserve the values of mount_server-related mount options */
+       if (data->mount_server.addrlen) {
+               memcpy(&server->mountd_address, &data->mount_server.address,
+                       data->mount_server.addrlen);
+               server->mountd_addrlen = data->mount_server.addrlen;
+       }
+       server->mountd_version = data->mount_server.version;
+       server->mountd_port = data->mount_server.port;
+       server->mountd_protocol = data->mount_server.protocol;
+
        server->namelen  = data->namlen;
        /* Create a client RPC handle for the NFSv3 ACL management interface */
        nfs_init_server_aclclient(server);
@@ -1028,6 +1083,8 @@ static int nfs4_init_server(struct nfs_server *server,
        server->acdirmin = data->acdirmin * HZ;
        server->acdirmax = data->acdirmax * HZ;
 
+       server->port = data->nfs_server.port;
+
        error = nfs_init_server_rpcclient(server, &timeparms, data->auth_flavors[0]);
 
 error: