/* file.c */
extern struct file_operations omfs_file_operations;
extern struct inode_operations omfs_file_inops;
-extern struct address_space_operations omfs_aops;
+extern const struct address_space_operations omfs_aops;
extern void omfs_make_empty_table(struct buffer_head *bh, int offset);
extern int omfs_shrink_inode(struct inode *inode);