360 /* check_sectors_in_chain: Check that each sector of a Virtual Unit Chain is correct.
361  *	Mark as 'IGNORE' each incorrect sector. This check is only done if the chain
413 		/* proceed to next Erase Unit on the chain */  in check_sectors_in_chain()
422 /* calc_chain_length: Walk through a Virtual Unit Chain and estimate chain length */
445 /* format_chain: Format an invalid Virtual Unit chain. It frees all the Erase Units in a
446  *	Virtual Unit Chain, i.e. all the units are disconnected.
448  *	It is not strictly correct to begin from the first block of the chain because
449  *	if we stop the code, we may see again a valid chain if there was a first_block
459 	printk("Formatting chain at block %d\n", first_block);  in format_chain()
472 		/* goto next block on the chain */  in format_chain()
543  *	to indicate that we are in the progression of a Virtual Unit Chain folding. If the UCI #2
584 	/* first pass : explore each block chain */  in NFTL_mount()
594 				/* read the block header. If error, we format the chain */  in NFTL_mount()
617 						/* if not currently in a chain, we can handle it safely */  in NFTL_mount()
634 						/* the block was in a chain : this is bad. We  in NFTL_mount()
635 						   must format all the chain */  in NFTL_mount()
636 						printk("Block %d: free but referenced in chain %d\n",  in NFTL_mount()
646 					/* this block is not the first block in chain :  in NFTL_mount()
647 					   ignore it, it will be included in a chain  in NFTL_mount()
656 						/* the chain is incorrect : we must format it,  in NFTL_mount()
662 						   block while being last block in a chain  in NFTL_mount()
663 						   only if the chain is being folded */  in NFTL_mount()
666 							printk("Block %d: incorrectly marked as first block in chain\n",  in NFTL_mount()
668 							/* the chain is incorrect : we must format it,  in NFTL_mount()
690 					   we accept that the last block of a chain has  in NFTL_mount()
703 						printk("Block %d: referencing block %d already in another chain\n",  in NFTL_mount()
717 			/* the chain was completely explored. Now we can decide  in NFTL_mount()
720 				/* invalid chain : format it */  in NFTL_mount()
726 				/* valid chain : get foldmark */  in NFTL_mount()
729 					/* cannot get foldmark : format the chain */  in NFTL_mount()