Merge git://git.linux-nfs.org/pub/linux/nfs-2.6

* git://git.linux-nfs.org/pub/linux/nfs-2.6:
  MAINTAINERS: update the NFS CLIENT entry
  NFS: Fix an Oops in NFS unmount
  Revert "NFS: Ensure we return zero if applications attempt to write zero bytes"
  SUNRPC xprtrdma: fix XDR tail buf marshalling for all ops
  NFSv2/v3: Fix a memory leak when using -onolock
  NFS: Fix NFS mountpoint crossing...

6 files changed, 20 insertions, 16 deletions

diff --git a/MAINTAINERS b/MAINTAINERS
index a7caced..cdc2198 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -2751,8 +2751,10 @@ S:	Maintained
 
 NFS CLIENT
 P:	Trond Myklebust
-M:	trond.myklebust@fys.uio.no
-L:	linux-kernel@vger.kernel.org
+M:	Trond.Myklebust@netapp.com
+L:	linux-nfs@vger.kernel.org
+W:	http://client.linux-nfs.org
+T:	git git://git.linux-nfs.org/pub/linux/nfs-2.6.git
 S:	Maintained
 
 NI5010 NETWORK DRIVER
diff --git a/fs/nfs/client.c b/fs/nfs/client.c
index 70587f3..a6f6254 100644
--- a/fs/nfs/client.c
+++ b/fs/nfs/client.c
@@ -410,9 +410,6 @@ static int nfs_create_rpc_client(struct nfs_client *clp, int proto,
  */
 static void nfs_destroy_server(struct nfs_server *server)
 {
-	if (!IS_ERR(server->client_acl))
-		rpc_shutdown_client(server->client_acl);
-
 	if (!(server->flags & NFS_MOUNT_NONLM))
 		lockd_down();	/* release rpc.lockd */
 }
@@ -755,6 +752,9 @@ void nfs_free_server(struct nfs_server *server)
 
 	if (server->destroy != NULL)
 		server->destroy(server);
+
+	if (!IS_ERR(server->client_acl))
+		rpc_shutdown_client(server->client_acl);
 	if (!IS_ERR(server->client))
 		rpc_shutdown_client(server->client);
 
diff --git a/fs/nfs/direct.c b/fs/nfs/direct.c
index 5e8d82f..3c9d16b 100644
--- a/fs/nfs/direct.c
+++ b/fs/nfs/direct.c
@@ -894,8 +894,6 @@ ssize_t nfs_file_direct_write(struct kiocb *iocb, const struct iovec *iov,
 	retval = generic_write_checks(file, &pos, &count, 0);
 	if (retval)
 		goto out;
-	if (!count)
-		goto out;	/* return 0 */
 
 	retval = -EINVAL;
 	if ((ssize_t) count < 0)
diff --git a/fs/nfs/getroot.c b/fs/nfs/getroot.c
index 0ee4384..e6242cd 100644
--- a/fs/nfs/getroot.c
+++ b/fs/nfs/getroot.c
@@ -57,6 +57,17 @@ static int nfs_superblock_set_dummy_root(struct super_block *sb, struct inode *i
 		}
 		/* Circumvent igrab(): we know the inode is not being freed */
 		atomic_inc(&inode->i_count);
+		/*
+		 * Ensure that this dentry is invisible to d_find_alias().
+		 * Otherwise, it may be spliced into the tree by
+		 * d_materialise_unique if a parent directory from the same
+		 * filesystem gets mounted at a later time.
+		 * This again causes shrink_dcache_for_umount_subtree() to
+		 * Oops, since the test for IS_ROOT() will fail.
+		 */
+		spin_lock(&dcache_lock);
+		list_del_init(&sb->s_root->d_alias);
+		spin_unlock(&dcache_lock);
 	}
 	return 0;
 }
diff --git a/fs/nfs/super.c b/fs/nfs/super.c
index 2426e71..ea92920 100644
--- a/fs/nfs/super.c
+++ b/fs/nfs/super.c
@@ -1475,7 +1475,7 @@ static int nfs_xdev_get_sb(struct file_system_type *fs_type, int flags,
 		error = PTR_ERR(mntroot);
 		goto error_splat_super;
 	}
-	if (mntroot->d_inode->i_op != &nfs_dir_inode_operations) {
+	if (mntroot->d_inode->i_op != server->nfs_client->rpc_ops->dir_inode_ops) {
 		dput(mntroot);
 		error = -ESTALE;
 		goto error_splat_super;
diff --git a/net/sunrpc/xprtrdma/rpc_rdma.c b/net/sunrpc/xprtrdma/rpc_rdma.c
index 9e11ce7..ee8de7a 100644
--- a/net/sunrpc/xprtrdma/rpc_rdma.c
+++ b/net/sunrpc/xprtrdma/rpc_rdma.c
@@ -92,7 +92,6 @@ rpcrdma_convert_iovs(struct xdr_buf *xdrbuf, int pos,
 		seg[n].mr_page = NULL;
 		seg[n].mr_offset = xdrbuf->head[0].iov_base;
 		seg[n].mr_len = xdrbuf->head[0].iov_len;
-		pos += xdrbuf->head[0].iov_len;
 		++n;
 	}
 
@@ -104,7 +103,6 @@ rpcrdma_convert_iovs(struct xdr_buf *xdrbuf, int pos,
 		seg[n].mr_len = min_t(u32,
 			PAGE_SIZE - xdrbuf->page_base, xdrbuf->page_len);
 		len = xdrbuf->page_len - seg[n].mr_len;
-		pos += len;
 		++n;
 		p = 1;
 		while (len > 0) {
@@ -119,20 +117,15 @@ rpcrdma_convert_iovs(struct xdr_buf *xdrbuf, int pos,
 		}
 	}
 
-	if (pos < xdrbuf->len && xdrbuf->tail[0].iov_len) {
+	if (xdrbuf->tail[0].iov_len) {
 		if (n == nsegs)
 			return 0;
 		seg[n].mr_page = NULL;
 		seg[n].mr_offset = xdrbuf->tail[0].iov_base;
 		seg[n].mr_len = xdrbuf->tail[0].iov_len;
-		pos += xdrbuf->tail[0].iov_len;
 		++n;
 	}
 
-	if (pos < xdrbuf->len)
-		dprintk("RPC:       %s: marshaled only %d of %d\n",
-				__func__, pos, xdrbuf->len);
-
 	return n;
 }