/* file.c */
extern struct inode_operations ufs_file_inode_operations;
-extern struct file_operations ufs_file_operations;
+extern const struct file_operations ufs_file_operations;
extern struct address_space_operations ufs_aops;
extern int ufs_getfrag_block (struct inode *inode, sector_t fragment, struct buffer_head *bh_result, int create);
/* namei.c */
-extern struct file_operations ufs_dir_operations;
+extern const struct file_operations ufs_dir_operations;
/* super.c */
extern void ufs_warning (struct super_block *, const char *, const char *, ...) __attribute__ ((format (printf, 3, 4)));