diff --git a/fs/nilfs2/dat.c b/fs/nilfs2/dat.c
index ab04a68f425d98e4fea9c8d08464b4c841f8c6c3..49c844dab33ac63d829d63ff151ab8b5403631fd 100644
--- a/fs/nilfs2/dat.c
+++ b/fs/nilfs2/dat.c
@@ -103,7 +103,8 @@ void nilfs_dat_abort_alloc(struct inode *dat, struct nilfs_palloc_req *req)
 	nilfs_palloc_abort_alloc_entry(dat, req);
 }
 
-void nilfs_dat_commit_free(struct inode *dat, struct nilfs_palloc_req *req)
+static void nilfs_dat_commit_free(struct inode *dat,
+				  struct nilfs_palloc_req *req)
 {
 	struct nilfs_dat_entry *entry;
 	void *kaddr;
diff --git a/fs/nilfs2/super.c b/fs/nilfs2/super.c
index 8e77016bafae6b93a8cc675e513690486ab9e800..ab629078f4e2f050890c9e4be8aef914d2a68c63 100644
--- a/fs/nilfs2/super.c
+++ b/fs/nilfs2/super.c
@@ -68,7 +68,7 @@ MODULE_DESCRIPTION("A New Implementation of the Log-structured Filesystem "
 		   "(NILFS)");
 MODULE_LICENSE("GPL");
 
-struct kmem_cache *nilfs_inode_cachep;
+static struct kmem_cache *nilfs_inode_cachep;
 struct kmem_cache *nilfs_transaction_cachep;
 struct kmem_cache *nilfs_segbuf_cachep;
 struct kmem_cache *nilfs_btree_path_cache;