CRAMFS_BLK_DIRECT_PTR_SHIFT
u32 block_off = i * (PAGE_SIZE >> CRAMFS_BLK_DIRECT_PTR_SHIFT);
return first_block_addr << CRAMFS_BLK_DIRECT_PTR_SHIFT;
blockaddr <<= CRAMFS_BLK_DIRECT_PTR_SHIFT;
block_start = block_ptr << CRAMFS_BLK_DIRECT_PTR_SHIFT;
block_start <<= CRAMFS_BLK_DIRECT_PTR_SHIFT;