1 files changed, 10 insertions, 2 deletions

diff --git a/include/linux/ext3_fs.h b/include/linux/ext3_fs.h
index 34136ff02aca..5607e6457a65 100644
--- a/include/linux/ext3_fs.h
+++ b/include/linux/ext3_fs.h
@@ -710,6 +710,14 @@ struct dir_private_info {
         __u32           next_hash;
 };
 
+/* calculate the first block number of the group */
+static inline ext3_fsblk_t
+ext3_group_first_block_no(struct super_block *sb, unsigned long group_no)
+{
+        return group_no * (ext3_fsblk_t)EXT3_BLOCKS_PER_GROUP(sb) +
+                le32_to_cpu(EXT3_SB(sb)->s_es->s_first_data_block);
+}
+
 /*
  * Special error return code only used by dx_probe() and its callers.
  */
@@ -739,7 +747,7 @@ extern void ext3_free_blocks (handle_t *handle, struct inode *inode,
 extern void ext3_free_blocks_sb (handle_t *handle, struct super_block *sb,
                                  ext3_fsblk_t block, unsigned long count,
                                 unsigned long *pdquot_freed_blocks);
-extern unsigned long ext3_count_free_blocks (struct super_block *);
+extern ext3_fsblk_t ext3_count_free_blocks (struct super_block *);
 extern void ext3_check_blocks_bitmap (struct super_block *);
 extern struct ext3_group_desc * ext3_get_group_desc(struct super_block * sb,
                                                     unsigned int block_group,
@@ -811,7 +819,7 @@ extern int ext3_group_add(struct super_block *sb,
                                 struct ext3_new_group_data *input);
 extern int ext3_group_extend(struct super_block *sb,
                                 struct ext3_super_block *es,
-                                unsigned long n_blocks_count);
+                                ext3_fsblk_t n_blocks_count);
 
 /* super.c */
 extern void ext3_error (struct super_block *, const char *, const char *, ...)