Merge branch 'linux-2.6' into for-2.6.24

[linux-2.6-omap-h63xx.git] / fs / nfs / client.c

diff --git a/fs/nfs/client.c b/fs/nfs/client.c
index 881fa490092393c97ee5c69dd2cfe33e6bd9c3c0..a204484072f34ca37320f310eeee2b8bdbb35cca 100644 (file)
--- a/fs/nfs/client.c
+++ b/fs/nfs/client.c
@@ -102,19 +102,10 @@ static struct nfs_client *nfs_alloc_client(const char *hostname,
                                           int nfsversion)
 {
        struct nfs_client *clp;
-       int error;
 
        if ((clp = kzalloc(sizeof(*clp), GFP_KERNEL)) == NULL)
                goto error_0;
 
-       error = rpciod_up();
-       if (error < 0) {
-               dprintk("%s: couldn't start rpciod! Error = %d\n",
-                               __FUNCTION__, error);
-               goto error_1;
-       }
-       __set_bit(NFS_CS_RPCIOD, &clp->cl_res_state);
-
        if (nfsversion == 4) {
                if (nfs_callback_up() < 0)
                        goto error_2;
@@ -139,8 +130,6 @@ static struct nfs_client *nfs_alloc_client(const char *hostname,
 #ifdef CONFIG_NFS_V4
        init_rwsem(&clp->cl_sem);
        INIT_LIST_HEAD(&clp->cl_delegations);
-       INIT_LIST_HEAD(&clp->cl_state_owners);
-       INIT_LIST_HEAD(&clp->cl_unused);
        spin_lock_init(&clp->cl_lock);
        INIT_DELAYED_WORK(&clp->cl_renewd, nfs4_renew_state);
        rpc_init_wait_queue(&clp->cl_rpcwaitq, "NFS client");
@@ -154,9 +143,6 @@ error_3:
        if (__test_and_clear_bit(NFS_CS_CALLBACK, &clp->cl_res_state))
                nfs_callback_down();
 error_2:
-       rpciod_down();
-       __clear_bit(NFS_CS_RPCIOD, &clp->cl_res_state);
-error_1:
        kfree(clp);
 error_0:
        return NULL;
@@ -167,16 +153,7 @@ static void nfs4_shutdown_client(struct nfs_client *clp)
 #ifdef CONFIG_NFS_V4
        if (__test_and_clear_bit(NFS_CS_RENEWD, &clp->cl_res_state))
                nfs4_kill_renewd(clp);
-       while (!list_empty(&clp->cl_unused)) {
-               struct nfs4_state_owner *sp;
-
-               sp = list_entry(clp->cl_unused.next,
-                               struct nfs4_state_owner,
-                               so_list);
-               list_del(&sp->so_list);
-               kfree(sp);
-       }
-       BUG_ON(!list_empty(&clp->cl_state_owners));
+       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);
 #endif
@@ -198,9 +175,6 @@ 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 (__test_and_clear_bit(NFS_CS_RPCIOD, &clp->cl_res_state))
-               rpciod_down();
-
        kfree(clp->cl_hostname);
        kfree(clp);
 
@@ -614,16 +588,6 @@ static int nfs_init_server(struct nfs_server *server, const struct nfs_mount_dat
        server->namelen  = data->namlen;
        /* Create a client RPC handle for the NFSv3 ACL management interface */
        nfs_init_server_aclclient(server);
-       if (clp->cl_nfsversion == 3) {
-               if (server->namelen == 0 || server->namelen > NFS3_MAXNAMLEN)
-                       server->namelen = NFS3_MAXNAMLEN;
-               if (!(data->flags & NFS_MOUNT_NORDIRPLUS))
-                       server->caps |= NFS_CAP_READDIRPLUS;
-       } else {
-               if (server->namelen == 0 || server->namelen > NFS2_MAXNAMLEN)
-                       server->namelen = NFS2_MAXNAMLEN;
-       }
-
        dprintk("<-- nfs_init_server() = 0 [new %p]\n", clp);
        return 0;
 
@@ -820,6 +784,16 @@ struct nfs_server *nfs_create_server(const struct nfs_mount_data *data,
        error = nfs_probe_fsinfo(server, mntfh, &fattr);
        if (error < 0)
                goto error;
+       if (server->nfs_client->rpc_ops->version == 3) {
+               if (server->namelen == 0 || server->namelen > NFS3_MAXNAMLEN)
+                       server->namelen = NFS3_MAXNAMLEN;
+               if (!(data->flags & NFS_MOUNT_NORDIRPLUS))
+                       server->caps |= NFS_CAP_READDIRPLUS;
+       } else {
+               if (server->namelen == 0 || server->namelen > NFS2_MAXNAMLEN)
+                       server->namelen = NFS2_MAXNAMLEN;
+       }
+
        if (!(fattr.valid & NFS_ATTR_FATTR)) {
                error = server->nfs_client->rpc_ops->getattr(server, mntfh, &fattr);
                if (error < 0) {
@@ -1010,6 +984,9 @@ struct nfs_server *nfs4_create_server(const struct nfs4_mount_data *data,
        if (error < 0)
                goto error;
 
+       if (server->namelen == 0 || server->namelen > NFS4_MAXNAMLEN)
+               server->namelen = NFS4_MAXNAMLEN;
+
        BUG_ON(!server->nfs_client);
        BUG_ON(!server->nfs_client->rpc_ops);
        BUG_ON(!server->nfs_client->rpc_ops->file_inode_ops);
@@ -1082,6 +1059,9 @@ struct nfs_server *nfs4_create_referral_server(struct nfs_clone_mount *data,
        if (error < 0)
                goto error;
 
+       if (server->namelen == 0 || server->namelen > NFS4_MAXNAMLEN)
+               server->namelen = NFS4_MAXNAMLEN;
+
        dprintk("Referral FSID: %llx:%llx\n",
                (unsigned long long) server->fsid.major,
                (unsigned long long) server->fsid.minor);
@@ -1141,6 +1121,9 @@ struct nfs_server *nfs_clone_server(struct nfs_server *source,
        if (error < 0)
                goto out_free_server;
 
+       if (server->namelen == 0 || server->namelen > NFS4_MAXNAMLEN)
+               server->namelen = NFS4_MAXNAMLEN;
+
        dprintk("Cloned FSID: %llx:%llx\n",
                (unsigned long long) server->fsid.major,
                (unsigned long long) server->fsid.minor);
@@ -1232,23 +1215,9 @@ static int nfs_server_list_open(struct inode *inode, struct file *file)
  */
 static void *nfs_server_list_start(struct seq_file *m, loff_t *_pos)
 {
-       struct list_head *_p;
-       loff_t pos = *_pos;
-
        /* lock the list against modification */
        spin_lock(&nfs_client_lock);
-
-       /* allow for the header line */
-       if (!pos)
-               return SEQ_START_TOKEN;
-       pos--;
-
-       /* find the n'th element in the list */
-       list_for_each(_p, &nfs_client_list)
-               if (!pos--)
-                       break;
-
-       return _p != &nfs_client_list ? _p : NULL;
+       return seq_list_start_head(&nfs_client_list, *_pos);
 }
 
 /*
@@ -1256,14 +1225,7 @@ static void *nfs_server_list_start(struct seq_file *m, loff_t *_pos)
  */
 static void *nfs_server_list_next(struct seq_file *p, void *v, loff_t *pos)
 {
-       struct list_head *_p;
-
-       (*pos)++;
-
-       _p = v;
-       _p = (v == SEQ_START_TOKEN) ? nfs_client_list.next : _p->next;
-
-       return _p != &nfs_client_list ? _p : NULL;
+       return seq_list_next(v, &nfs_client_list, pos);
 }
 
 /*
@@ -1282,7 +1244,7 @@ static int nfs_server_list_show(struct seq_file *m, void *v)
        struct nfs_client *clp;
 
        /* display header on line 1 */
-       if (v == SEQ_START_TOKEN) {
+       if (v == &nfs_client_list) {
                seq_puts(m, "NV SERVER   PORT USE HOSTNAME\n");
                return 0;
        }
@@ -1323,23 +1285,9 @@ static int nfs_volume_list_open(struct inode *inode, struct file *file)
  */
 static void *nfs_volume_list_start(struct seq_file *m, loff_t *_pos)
 {
-       struct list_head *_p;
-       loff_t pos = *_pos;
-
        /* lock the list against modification */
        spin_lock(&nfs_client_lock);
-
-       /* allow for the header line */
-       if (!pos)
-               return SEQ_START_TOKEN;
-       pos--;
-
-       /* find the n'th element in the list */
-       list_for_each(_p, &nfs_volume_list)
-               if (!pos--)
-                       break;
-
-       return _p != &nfs_volume_list ? _p : NULL;
+       return seq_list_start_head(&nfs_volume_list, *_pos);
 }
 
 /*
@@ -1347,14 +1295,7 @@ static void *nfs_volume_list_start(struct seq_file *m, loff_t *_pos)
  */
 static void *nfs_volume_list_next(struct seq_file *p, void *v, loff_t *pos)
 {
-       struct list_head *_p;
-
-       (*pos)++;
-
-       _p = v;
-       _p = (v == SEQ_START_TOKEN) ? nfs_volume_list.next : _p->next;
-
-       return _p != &nfs_volume_list ? _p : NULL;
+       return seq_list_next(v, &nfs_volume_list, pos);
 }
 
 /*
@@ -1375,7 +1316,7 @@ static int nfs_volume_list_show(struct seq_file *m, void *v)
        char dev[8], fsid[17];
 
        /* display header on line 1 */
-       if (v == SEQ_START_TOKEN) {
+       if (v == &nfs_volume_list) {
                seq_puts(m, "NV SERVER   PORT DEV     FSID\n");
                return 0;
        }