-unsigned ufs_add_fragments (struct inode *, unsigned, unsigned, unsigned, int *);
-unsigned ufs_alloc_fragments (struct inode *, unsigned, unsigned, unsigned, int *);
-unsigned ufs_alloccg_block (struct inode *, struct ufs_cg_private_info *, unsigned, int *);
-unsigned ufs_bitmap_search (struct super_block *, struct ufs_cg_private_info *, unsigned, unsigned);
+static unsigned ufs_add_fragments (struct inode *, unsigned, unsigned, unsigned, int *);
+static unsigned ufs_alloc_fragments (struct inode *, unsigned, unsigned, unsigned, int *);
+static unsigned ufs_alloccg_block (struct inode *, struct ufs_cg_private_info *, unsigned, int *);
+static unsigned ufs_bitmap_search (struct super_block *, struct ufs_cg_private_info *, unsigned, unsigned);