extern struct inode_operations coda_file_inode_operations;
extern struct inode_operations coda_ioctl_inode_operations;
-extern struct address_space_operations coda_file_aops;
-extern struct address_space_operations coda_symlink_aops;
+extern const struct address_space_operations coda_file_aops;
+extern const struct address_space_operations coda_symlink_aops;
extern const struct file_operations coda_dir_operations;
extern const struct file_operations coda_file_operations;