-int ext3_forget(handle_t *, int, struct inode *, struct buffer_head *, int);
-struct buffer_head * ext3_getblk (handle_t *, struct inode *, long, int, int *);
-struct buffer_head * ext3_bread (handle_t *, struct inode *, int, int, int *);
-int ext3_get_blocks_handle(handle_t *handle, struct inode *inode,
- sector_t iblock, unsigned long maxblocks, struct buffer_head *bh_result,
- int create, int extend_disksize);
+extern int ext3_forget(handle_t *, int, struct inode *, struct buffer_head *, int);
+extern struct buffer_head * ext3_getblk (handle_t *, struct inode *, long, int, int *);
+extern struct buffer_head * ext3_bread (handle_t *, struct inode *, int, int, int *);