Hi, Now ext4 gets free blocks count directly from a group descriptor without BLOCK_UNINIT, however calculates free blocks count for a group descriptor with BLOCK_UNINIT via ext4_init_block_bitmap(). The group descriptors with BLOCK_UNINIT have group check sums. Now comes the question, why do not we get it directly from group descriptor? Yongqiang. -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html