NFS: Ensure that nfs_link() instantiates the dentry correctly

		old_dentry->d_parent->d_name.name, old_dentry->d_name.name,

		dentry->d_parent->d_name.name, dentry->d_name.name);

	/*

	 * Drop the dentry in advance to force a new lookup.

	 * Since nfs_proc_link doesn't return a file handle,

	 * we can't use the existing dentry.

	 */

	lock_kernel();

	d_drop(dentry);

	nfs_begin_data_update(dir);

	nfs_begin_data_update(inode);

	error = NFS_PROTO(dir)->link(inode, dir, &dentry->d_name);

	if (error == 0) {

		atomic_inc(&inode->i_count);

		d_instantiate(dentry, inode);

	}

	nfs_end_data_update(inode);

	nfs_end_data_update(dir);

	unlock_kernel();