struct buffer_head;
struct super_block;
-extern struct inode_operations udf_dir_inode_operations;
+extern const struct inode_operations udf_dir_inode_operations;
extern const struct file_operations udf_dir_operations;
-extern struct inode_operations udf_file_inode_operations;
+extern const struct inode_operations udf_file_inode_operations;
extern const struct file_operations udf_file_operations;
extern const struct address_space_operations udf_aops;
extern const struct address_space_operations udf_adinicb_aops;