diff --git a/fs/nilfs2/nilfs.h b/fs/nilfs2/nilfs.h
index da6fc0b..edf6a59 100644
--- a/fs/nilfs2/nilfs.h
+++ b/fs/nilfs2/nilfs.h
@@ -263,6 +263,7 @@
 extern struct dentry *nilfs_get_parent(struct dentry *);
 
 /* super.c */
+extern struct inode *nilfs_alloc_inode_common(struct the_nilfs *);
 extern struct inode *nilfs_alloc_inode(struct super_block *);
 extern void nilfs_destroy_inode(struct inode *);
 extern void nilfs_error(struct super_block *, const char *, const char *, ...)