25 static int get_level_offsets(struct ext2_data *fs, uint32_t block, uint32_t offsets[4]);
405 static int fetch_level_blocks(struct ext2_inode *inode, uint32_t offsets[4], int lvl, int max_lvl,  in fetch_level_blocks()
409 	bool already_fetched = try_current && (offsets[lvl] == inode->offsets[lvl]);  in fetch_level_blocks()
426 			block = inode->i_block[offsets[0]];  in fetch_level_blocks()
430 			block = sys_le32_to_cpu(list[offsets[lvl]]);  in fetch_level_blocks()
442 		LOG_DBG("[fetch] lvl:%d off:%d num:%d", lvl, offsets[lvl], block);  in fetch_level_blocks()
444 	return fetch_level_blocks(inode, offsets, lvl + 1, max_lvl, try_current);  in fetch_level_blocks()
458 	uint32_t offsets[MAX_OFFSETS_SIZE];  in ext2_fetch_inode_block()  local
461 	max_lvl = get_level_offsets(fs, block, offsets);  in ext2_fetch_inode_block()
463 	ret = fetch_level_blocks(inode, offsets, 0, max_lvl, try_current);  in ext2_fetch_inode_block()
469 	memcpy(inode->offsets, offsets, MAX_OFFSETS_SIZE * sizeof(uint32_t));  in ext2_fetch_inode_block()
475 			inode->offsets[0], inode->offsets[1], inode->offsets[2], inode->offsets[3]);  in ext2_fetch_inode_block()
479 static bool all_zero(const uint32_t *offsets, int lvl)  in all_zero()  argument
482 		if (offsets[i] > 0) {  in all_zero()
498 		const uint32_t *offsets)  in delete_blocks()  argument
526 		if (all_zero(offsets, lvl)) {  in delete_blocks()
539 			start_blk = offsets[0];  in delete_blocks()
542 			uint32_t block_num2 = sys_le32_to_cpu(list[offsets[0]]);  in delete_blocks()
555 			start_blk = offsets[0] + 1;  in delete_blocks()
558 			rem = delete_blocks(fs, block_num2, lvl - 1, &offsets[1]);  in delete_blocks()
610 static int get_level_offsets(struct ext2_data *fs, uint32_t block, uint32_t offsets[4])  in get_level_offsets()
620 		offsets[0] = block;  in get_level_offsets()
627 		offsets[0] = EXT2_INODE_BLOCK_1LVL;  in get_level_offsets()
628 		 offsets[1] = block;  in get_level_offsets()
635 		offsets[0] = EXT2_INODE_BLOCK_2LVL;  in get_level_offsets()
636 		offsets[1] = block / B;  in get_level_offsets()
637 		offsets[2] = block % B;  in get_level_offsets()
644 		offsets[0] = EXT2_INODE_BLOCK_3LVL;  in get_level_offsets()
645 		offsets[1] = block / (B * B);  in get_level_offsets()
646 		offsets[2] = (block % (B * B)) / B;  in get_level_offsets()
647 		offsets[3] = (block % (B * B)) % B;  in get_level_offsets()
667 	uint32_t offsets[4];  in ext2_inode_remove_blocks()  local
670 	max_lvl = get_level_offsets(inode->i_fs, first, offsets);  in ext2_inode_remove_blocks()
672 	if (all_zero(&offsets[1], max_lvl)) {  in ext2_inode_remove_blocks()
678 		start = offsets[0];  in ext2_inode_remove_blocks()
683 		if (inode->i_block[offsets[0]] == 0) {  in ext2_inode_remove_blocks()
689 		start = offsets[0] + 1;  in ext2_inode_remove_blocks()
690 		ret = delete_blocks(inode->i_fs, inode->i_block[offsets[0]],  in ext2_inode_remove_blocks()
691 				block0_level(offsets[0]), &offsets[1]);  in ext2_inode_remove_blocks()
721 			block = &inode->i_block[inode->offsets[lvl]];  in alloc_level_blocks()
723 			block = &((uint32_t *)inode->blocks[lvl - 1]->data)[inode->offsets[lvl]];  in alloc_level_blocks()