Merge branch 'bugfixes' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6

* 'bugfixes' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6:
  NFSv4: Fix an embarassing typo in encode_attrs()
  NFSv4: Ensure that /proc/self/mountinfo displays the minor version number
  NFSv4.1: Ensure that we initialise the session when following a referral
  SUNRPC: Fix a re-entrancy bug in xs_tcp_read_calldir()
  nfs4 use mandatory attribute file type in nfs4_get_root

4 files changed, 72 insertions, 78 deletions

diff --git a/fs/nfs/client.c b/fs/nfs/client.c
index 7ec9b34a59f..d25b5257b7a 100644
--- a/fs/nfs/client.c
+++ b/fs/nfs/client.c
@@ -1286,6 +1286,55 @@ static void nfs4_session_set_rwsize(struct nfs_server *server)
 #endif /* CONFIG_NFS_V4_1 */
 }
 
+static int nfs4_server_common_setup(struct nfs_server *server,
+		struct nfs_fh *mntfh)
+{
+	struct nfs_fattr *fattr;
+	int error;
+
+	BUG_ON(!server->nfs_client);
+	BUG_ON(!server->nfs_client->rpc_ops);
+	BUG_ON(!server->nfs_client->rpc_ops->file_inode_ops);
+
+	fattr = nfs_alloc_fattr();
+	if (fattr == NULL)
+		return -ENOMEM;
+
+	/* We must ensure the session is initialised first */
+	error = nfs4_init_session(server);
+	if (error < 0)
+		goto out;
+
+	/* Probe the root fh to retrieve its FSID and filehandle */
+	error = nfs4_get_rootfh(server, mntfh);
+	if (error < 0)
+		goto out;
+
+	dprintk("Server FSID: %llx:%llx\n",
+			(unsigned long long) server->fsid.major,
+			(unsigned long long) server->fsid.minor);
+	dprintk("Mount FH: %d\n", mntfh->size);
+
+	nfs4_session_set_rwsize(server);
+
+	error = nfs_probe_fsinfo(server, mntfh, fattr);
+	if (error < 0)
+		goto out;
+
+	if (server->namelen == 0 || server->namelen > NFS4_MAXNAMLEN)
+		server->namelen = NFS4_MAXNAMLEN;
+
+	spin_lock(&nfs_client_lock);
+	list_add_tail(&server->client_link, &server->nfs_client->cl_superblocks);
+	list_add_tail(&server->master_link, &nfs_volume_list);
+	spin_unlock(&nfs_client_lock);
+
+	server->mount_time = jiffies;
+out:
+	nfs_free_fattr(fattr);
+	return error;
+}
+
 /*
  * Create a version 4 volume record
  */
@@ -1346,7 +1395,6 @@ error:
 struct nfs_server *nfs4_create_server(const struct nfs_parsed_mount_data *data,
 				      struct nfs_fh *mntfh)
 {
-	struct nfs_fattr *fattr;
 	struct nfs_server *server;
 	int error;
 
@@ -1356,55 +1404,19 @@ struct nfs_server *nfs4_create_server(const struct nfs_parsed_mount_data *data,
 	if (!server)
 		return ERR_PTR(-ENOMEM);
 
-	error = -ENOMEM;
-	fattr = nfs_alloc_fattr();
-	if (fattr == NULL)
-		goto error;
-
 	/* set up the general RPC client */
 	error = nfs4_init_server(server, data);
 	if (error < 0)
 		goto error;
 
-	BUG_ON(!server->nfs_client);
-	BUG_ON(!server->nfs_client->rpc_ops);
-	BUG_ON(!server->nfs_client->rpc_ops->file_inode_ops);
-
-	error = nfs4_init_session(server);
-	if (error < 0)
-		goto error;
-
-	/* Probe the root fh to retrieve its FSID */
-	error = nfs4_get_rootfh(server, mntfh);
+	error = nfs4_server_common_setup(server, mntfh);
 	if (error < 0)
 		goto error;
 
-	dprintk("Server FSID: %llx:%llx\n",
-		(unsigned long long) server->fsid.major,
-		(unsigned long long) server->fsid.minor);
-	dprintk("Mount FH: %d\n", mntfh->size);
-
-	nfs4_session_set_rwsize(server);
-
-	error = nfs_probe_fsinfo(server, mntfh, fattr);
-	if (error < 0)
-		goto error;
-
-	if (server->namelen == 0 || server->namelen > NFS4_MAXNAMLEN)
-		server->namelen = NFS4_MAXNAMLEN;
-
-	spin_lock(&nfs_client_lock);
-	list_add_tail(&server->client_link, &server->nfs_client->cl_superblocks);
-	list_add_tail(&server->master_link, &nfs_volume_list);
-	spin_unlock(&nfs_client_lock);
-
-	server->mount_time = jiffies;
 	dprintk("<-- nfs4_create_server() = %p\n", server);
-	nfs_free_fattr(fattr);
 	return server;
 
 error:
-	nfs_free_fattr(fattr);
 	nfs_free_server(server);
 	dprintk("<-- nfs4_create_server() = error %d\n", error);
 	return ERR_PTR(error);
@@ -1418,7 +1430,6 @@ struct nfs_server *nfs4_create_referral_server(struct nfs_clone_mount *data,
 {
 	struct nfs_client *parent_client;
 	struct nfs_server *server, *parent_server;
-	struct nfs_fattr *fattr;
 	int error;
 
 	dprintk("--> nfs4_create_referral_server()\n");
@@ -1427,11 +1438,6 @@ struct nfs_server *nfs4_create_referral_server(struct nfs_clone_mount *data,
 	if (!server)
 		return ERR_PTR(-ENOMEM);
 
-	error = -ENOMEM;
-	fattr = nfs_alloc_fattr();
-	if (fattr == NULL)
-		goto error;
-
 	parent_server = NFS_SB(data->sb);
 	parent_client = parent_server->nfs_client;
 
@@ -1456,40 +1462,14 @@ struct nfs_server *nfs4_create_referral_server(struct nfs_clone_mount *data,
 	if (error < 0)
 		goto error;
 
-	BUG_ON(!server->nfs_client);
-	BUG_ON(!server->nfs_client->rpc_ops);
-	BUG_ON(!server->nfs_client->rpc_ops->file_inode_ops);
-
-	/* Probe the root fh to retrieve its FSID and filehandle */
-	error = nfs4_get_rootfh(server, mntfh);
-	if (error < 0)
-		goto error;
-
-	/* probe the filesystem info for this server filesystem */
-	error = nfs_probe_fsinfo(server, mntfh, fattr);
+	error = nfs4_server_common_setup(server, mntfh);
 	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);
-
-	spin_lock(&nfs_client_lock);
-	list_add_tail(&server->client_link, &server->nfs_client->cl_superblocks);
-	list_add_tail(&server->master_link, &nfs_volume_list);
-	spin_unlock(&nfs_client_lock);
-
-	server->mount_time = jiffies;
-
-	nfs_free_fattr(fattr);
 	dprintk("<-- nfs_create_referral_server() = %p\n", server);
 	return server;
 
 error:
-	nfs_free_fattr(fattr);
 	nfs_free_server(server);
 	dprintk("<-- nfs4_create_referral_server() = error %d\n", error);
 	return ERR_PTR(error);
diff --git a/fs/nfs/getroot.c b/fs/nfs/getroot.c
index 7428f7d6273..a70e446e160 100644
--- a/fs/nfs/getroot.c
+++ b/fs/nfs/getroot.c
@@ -146,7 +146,7 @@ int nfs4_get_rootfh(struct nfs_server *server, struct nfs_fh *mntfh)
 		goto out;
 	}
 
-	if (!(fsinfo.fattr->valid & NFS_ATTR_FATTR_MODE)
+	if (!(fsinfo.fattr->valid & NFS_ATTR_FATTR_TYPE)
 			|| !S_ISDIR(fsinfo.fattr->mode)) {
 		printk(KERN_ERR "nfs4_get_rootfh:"
 		       " getroot encountered non-directory\n");
diff --git a/fs/nfs/nfs4xdr.c b/fs/nfs/nfs4xdr.c
index 6bdef28efa3..65c8dae4b26 100644
--- a/fs/nfs/nfs4xdr.c
+++ b/fs/nfs/nfs4xdr.c
@@ -862,8 +862,8 @@ static void encode_attrs(struct xdr_stream *xdr, const struct iattr *iap, const
 		bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET;
 		*p++ = cpu_to_be32(NFS4_SET_TO_CLIENT_TIME);
 		*p++ = cpu_to_be32(0);
-		*p++ = cpu_to_be32(iap->ia_mtime.tv_sec);
-		*p++ = cpu_to_be32(iap->ia_mtime.tv_nsec);
+		*p++ = cpu_to_be32(iap->ia_atime.tv_sec);
+		*p++ = cpu_to_be32(iap->ia_atime.tv_nsec);
 	}
 	else if (iap->ia_valid & ATTR_ATIME) {
 		bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET;
diff --git a/fs/nfs/super.c b/fs/nfs/super.c
index 04214fc5c30..f9df16de4a5 100644
--- a/fs/nfs/super.c
+++ b/fs/nfs/super.c
@@ -570,6 +570,22 @@ static void nfs_show_mountd_options(struct seq_file *m, struct nfs_server *nfss,
 	nfs_show_mountd_netid(m, nfss, showdefaults);
 }
 
+#ifdef CONFIG_NFS_V4
+static void nfs_show_nfsv4_options(struct seq_file *m, struct nfs_server *nfss,
+				    int showdefaults)
+{
+	struct nfs_client *clp = nfss->nfs_client;
+
+	seq_printf(m, ",clientaddr=%s", clp->cl_ipaddr);
+	seq_printf(m, ",minorversion=%u", clp->cl_minorversion);
+}
+#else
+static void nfs_show_nfsv4_options(struct seq_file *m, struct nfs_server *nfss,
+				    int showdefaults)
+{
+}
+#endif
+
 /*
  * Describe the mount options in force on this server representation
  */
@@ -631,11 +647,9 @@ static void nfs_show_mount_options(struct seq_file *m, struct nfs_server *nfss,
 
 	if (version != 4)
 		nfs_show_mountd_options(m, nfss, showdefaults);
+	else
+		nfs_show_nfsv4_options(m, nfss, showdefaults);
 
-#ifdef CONFIG_NFS_V4
-	if (clp->rpc_ops->version == 4)
-		seq_printf(m, ",clientaddr=%s", clp->cl_ipaddr);
-#endif
 	if (nfss->options & NFS_OPTION_FSCACHE)
 		seq_printf(m, ",fsc");
 }