28 	unsigned int block, boot_record_count = 0;  in find_boot_record()  local
48 	for (block = 0; block < nftl->nb_blocks; block++) {  in find_boot_record()
53 		ret = mtd_read(mtd, block * nftl->EraseSize, SECTORSIZE,  in find_boot_record()
61 				printk(KERN_WARNING "Block read at 0x%x of mtd%d failed: %d\n",  in find_boot_record()
62 				       block * nftl->EraseSize, nftl->mbd.mtd->index, ret);  in find_boot_record()
64 					printk(KERN_WARNING "Further failures for this block will not be printed\n");  in find_boot_record()
73 			       block * nftl->EraseSize, nftl->mbd.mtd->index);  in find_boot_record()
79 		ret = nftl_read_oob(mtd, block * nftl->EraseSize +  in find_boot_record()
84 			       block * nftl->EraseSize, nftl->mbd.mtd->index, ret);  in find_boot_record()
94 			       block * nftl->EraseSize, nftl->mbd.mtd->index,  in find_boot_record()
100 		ret = mtd->read(mtd, block * nftl->EraseSize, SECTORSIZE,  in find_boot_record()
104 			       block * nftl->EraseSize, nftl->mbd.mtd->index, ret);  in find_boot_record()
111 			       block * nftl->EraseSize, nftl->mbd.mtd->index);  in find_boot_record()
123 				       nftl->MediaUnit * nftl->EraseSize, block * nftl->EraseSize);  in find_boot_record()
132 				nftl->SpareMediaUnit = block;  in find_boot_record()
134 			/* Mark this boot record (NFTL MediaHeader) block as reserved */  in find_boot_record()
135 			nftl->ReplUnitTable[block] = BLOCK_RESERVED;  in find_boot_record()
213 		/* Mark this boot record (NFTL MediaHeader) block as reserved */  in find_boot_record()
214 		nftl->ReplUnitTable[block] = BLOCK_RESERVED;  in find_boot_record()
219 The new DiskOnChip driver already scanned the bad block table.  Just query it.  in find_boot_record()
223 						block * nftl->EraseSize + i +  in find_boot_record()
243 		nftl->MediaUnit = block;  in find_boot_record()
246 	} /* foreach (block) */  in find_boot_record()
305 int NFTL_formatblock(struct NFTLrecord *nftl, int block)  in NFTL_formatblock()  argument
314 	if (nftl_read_oob(mtd, block * nftl->EraseSize + SECTORSIZE + 8,  in NFTL_formatblock()
329 	instr->addr = block * nftl->EraseSize;  in NFTL_formatblock()
332 		printk("Error while formatting block %d\n", block);  in NFTL_formatblock()
340 	/* wrap (almost impossible with current flash) or free block */  in NFTL_formatblock()
352 	if (nftl_write_oob(mtd, block * nftl->EraseSize + SECTORSIZE +  in NFTL_formatblock()
357 	/* could not format, update the bad block table (caller is responsible  in NFTL_formatblock()
368  *	situation that after writing the Data area, the Block Control Information is
369  *	not updated according (due to power failure or something) which leaves the block
370  *	in an inconsistent state. So we have to check if a block is really FREE in this
375 	unsigned int block, i, status;  in check_sectors_in_chain()  local
381 	block = first_block;  in check_sectors_in_chain()
385 					  block * nftl->EraseSize + i * SECTORSIZE,  in check_sectors_in_chain()
396 				    check_free_sectors(nftl, block * nftl->EraseSize + i * SECTORSIZE,  in check_sectors_in_chain()
398 					printk("Incorrect free sector %d in block %d: "  in check_sectors_in_chain()
400 					       i, block);  in check_sectors_in_chain()
405 					nftl_write_oob(mtd, block *  in check_sectors_in_chain()
417 		block = nftl->ReplUnitTable[block];  in check_sectors_in_chain()
418 		if (!(block == BLOCK_NIL || block < nftl->nb_blocks))  in check_sectors_in_chain()
419 			printk("incorrect ReplUnitTable[] : %d\n", block);  in check_sectors_in_chain()
420 		if (block == BLOCK_NIL || block >= nftl->nb_blocks)  in check_sectors_in_chain()
428 	unsigned int length = 0, block = first_block;  in calc_chain_length()  local
439 		block = nftl->ReplUnitTable[block];  in calc_chain_length()
440 		if (!(block == BLOCK_NIL || block < nftl->nb_blocks))  in calc_chain_length()
441 			printk("incorrect ReplUnitTable[] : %d\n", block);  in calc_chain_length()
442 		if (block == BLOCK_NIL || block >= nftl->nb_blocks)  in calc_chain_length()
451  *	It is not strictly correct to begin from the first block of the chain because
453  *	flag in a block inside it. But is it really a problem ?
460 	unsigned int block = first_block, block1;  in format_chain()  local
462 	printk("Formatting chain at block %d\n", first_block);  in format_chain()
465 		block1 = nftl->ReplUnitTable[block];  in format_chain()
467 		printk("Formatting block %d\n", block);  in format_chain()
468 		if (NFTL_formatblock(nftl, block) < 0) {  in format_chain()
470 			nftl->ReplUnitTable[block] = BLOCK_RESERVED;  in format_chain()
472 			nftl->ReplUnitTable[block] = BLOCK_FREE;  in format_chain()
475 		/* goto next block on the chain */  in format_chain()
476 		block = block1;  in format_chain()
478 		if (!(block == BLOCK_NIL || block < nftl->nb_blocks))  in format_chain()
479 			printk("incorrect ReplUnitTable[] : %d\n", block);  in format_chain()
480 		if (block == BLOCK_NIL || block >= nftl->nb_blocks)  in format_chain()
485 /* check_and_mark_free_block: Verify that a block is free in the NFTL sense (valid erase mark) or
491 static int check_and_mark_free_block(struct NFTLrecord *nftl, int block)  in check_and_mark_free_block()  argument
499 	if (nftl_read_oob(mtd, block * nftl->EraseSize + SECTORSIZE + 8, 8,  in check_and_mark_free_block()
505 		/* if no erase mark, the block must be totally free. This is  in check_and_mark_free_block()
507 		if (check_free_sectors (nftl, block * nftl->EraseSize, nftl->EraseSize, 1) != 0)  in check_and_mark_free_block()
510 		/* free block : write erase mark */  in check_and_mark_free_block()
515 				   block * nftl->EraseSize + SECTORSIZE + 8, 8,  in check_and_mark_free_block()
523 			if (check_free_sectors (nftl, block * nftl->EraseSize + i,  in check_and_mark_free_block()
527 			if (nftl_read_oob(mtd, block * nftl->EraseSize + i,  in check_and_mark_free_block()
552 static int get_fold_mark(struct NFTLrecord *nftl, unsigned int block)  in get_fold_mark()  argument
558 	if (nftl_read_oob(mtd, block * nftl->EraseSize + 2 * SECTORSIZE + 8,  in get_fold_mark()
569 	unsigned int block, first_block, is_first_block;  in NFTL_mount()  local
587 	/* first pass : explore each block chain */  in NFTL_mount()
590 		/* if the block was not already explored, we can look at it */  in NFTL_mount()
592 			block = first_block;  in NFTL_mount()
597 				/* read the block header. If error, we format the chain */  in NFTL_mount()
599 						  block * s->EraseSize + 8, 8,  in NFTL_mount()
602 						  block * s->EraseSize +  in NFTL_mount()
605 					s->ReplUnitTable[block] = BLOCK_NIL;  in NFTL_mount()
617 				/* invalid/free block test */  in NFTL_mount()
621 						if (check_and_mark_free_block(s, block) < 0) {  in NFTL_mount()
623 							printk("Formatting block %d\n", block);  in NFTL_mount()
624 							if (NFTL_formatblock(s, block) < 0) {  in NFTL_mount()
625 								/* could not format: reserve the block */  in NFTL_mount()
626 								s->ReplUnitTable[block] = BLOCK_RESERVED;  in NFTL_mount()
628 								s->ReplUnitTable[block] = BLOCK_FREE;  in NFTL_mount()
631 							/* free block: mark it */  in NFTL_mount()
632 							s->ReplUnitTable[block] = BLOCK_FREE;  in NFTL_mount()
634 						/* directly examine the next block. */  in NFTL_mount()
637 						/* the block was in a chain : this is bad. We  in NFTL_mount()
639 						printk("Block %d: free but referenced in chain %d\n",  in NFTL_mount()
640 						       block, first_block);  in NFTL_mount()
641 						s->ReplUnitTable[block] = BLOCK_NIL;  in NFTL_mount()
649 					/* this block is not the first block in chain :  in NFTL_mount()
657 						printk("Block %d: incorrect logical block: %d expected: %d\n",  in NFTL_mount()
658 						       block, logical_block, first_logical_block);  in NFTL_mount()
664 						/* we accept that a block is marked as first  in NFTL_mount()
665 						   block while being last block in a chain  in NFTL_mount()
667 						if (get_fold_mark(s, block) != FOLD_MARK_IN_PROGRESS ||  in NFTL_mount()
669 							printk("Block %d: incorrectly marked as first block in chain\n",  in NFTL_mount()
670 							       block);  in NFTL_mount()
675 							printk("Block %d: folding in progress - ignoring first block flag\n",  in NFTL_mount()
676 							       block);  in NFTL_mount()
683 					s->ReplUnitTable[block] = BLOCK_NIL;  in NFTL_mount()
686 					printk("Block %d: referencing invalid block %d\n",  in NFTL_mount()
687 					       block, rep_block);  in NFTL_mount()
689 					s->ReplUnitTable[block] = BLOCK_NIL;  in NFTL_mount()
693 					   we accept that the last block of a chain has  in NFTL_mount()
696 					   last block appeared first */  in NFTL_mount()
701 						printk("Block %d: folding in progress - ignoring first block flag\n",  in NFTL_mount()
703 						s->ReplUnitTable[block] = rep_block;  in NFTL_mount()
706 						printk("Block %d: referencing block %d already in another chain\n",  in NFTL_mount()
707 						       block, rep_block);  in NFTL_mount()
710 						s->ReplUnitTable[block] = BLOCK_NIL;  in NFTL_mount()
715 					s->ReplUnitTable[block] = rep_block;  in NFTL_mount()
716 					block = rep_block;  in NFTL_mount()
733 					printk("Could read foldmark at block %d\n", first_block);  in NFTL_mount()
766 	/* second pass to format unreferenced blocks  and init free block count */  in NFTL_mount()
770 	for (block = 0; block < s->nb_blocks; block++) {  in NFTL_mount()
771 		if (s->ReplUnitTable[block] == BLOCK_NOTEXPLORED) {  in NFTL_mount()
772 			printk("Unreferenced block %d, formatting it\n", block);  in NFTL_mount()
773 			if (NFTL_formatblock(s, block) < 0)  in NFTL_mount()
774 				s->ReplUnitTable[block] = BLOCK_RESERVED;  in NFTL_mount()
776 				s->ReplUnitTable[block] = BLOCK_FREE;  in NFTL_mount()
778 		if (s->ReplUnitTable[block] == BLOCK_FREE) {  in NFTL_mount()
780 			s->LastFreeEUN = block;  in NFTL_mount()