- * convert cylinder group to index of its cg block
- */
-#define cgtod(c,fs) (cgbase(c,fs) + (fs)->fs_cblkno)
-
-/*
- * give address of first inode block in cylinder group
- */
-#define cgimin(c,fs) (cgbase(c,fs) + (fs)->fs_iblkno)
-
-/*
- * give address of first data block in cylinder group
- */
-#define cgdmin(c,fs) (cgbase(c,fs) + (fs)->fs_dblkno)
-
-/*
- * turn inode number into cylinder group number
+ * macros for handling inode numbers
+ * inode number to file system block offset
+ * inode number to cylinder group number
+ * inode number to file system block address