fs/ext2/super.c

735 	unsigned int ppb = 1 << (bits-2);
755 	meta_blocks += 1 + ppb;
756 	meta_blocks += 1 + ppb + ppb * ppb;
766 	upper_limit -= ppb;
768 	if (upper_limit < ppb * ppb) {
769 		meta_blocks += 1 + DIV_ROUND_UP(upper_limit, ppb);
773 	meta_blocks += 1 + ppb;
774 	upper_limit -= ppb * ppb;
776 	meta_blocks += 1 + DIV_ROUND_UP(upper_limit, ppb) +
777 		DIV_ROUND_UP(upper_limit, ppb*ppb);