49 	if (!ext2fs_has_feature_meta_bg(fs->super) ||  in ext2fs_descriptor_block_loc2()
50 	    (i < fs->super->s_first_meta_bg))  in ext2fs_descriptor_block_loc2()
53 	bg = EXT2_DESC_PER_BLOCK(fs->super) * i;  in ext2fs_descriptor_block_loc2()
65 	if (group_block != fs->super->s_first_data_block &&  in ext2fs_descriptor_block_loc2()
66 	    ((ret_blk + has_super + fs->super->s_blocks_per_group) <  in ext2fs_descriptor_block_loc2()
67 	     ext2fs_blocks_count(fs->super))) {  in ext2fs_descriptor_block_loc2()
68 		ret_blk += fs->super->s_blocks_per_group;  in ext2fs_descriptor_block_loc2()
180 	retval = io_channel_alloc_buf(fs->io, -SUPERBLOCK_SIZE, &fs->super);  in ext2fs_open2()
225 				     fs->super);  in ext2fs_open2()
229 		memcpy(fs->orig_super, fs->super, SUPERBLOCK_SIZE);  in ext2fs_open2()
233 		if (!ext2fs_verify_csum_type(fs, fs->super))  in ext2fs_open2()
235 		if (!ext2fs_superblock_csum_verify(fs, fs->super))  in ext2fs_open2()
241 	ext2fs_swap_super(fs->super);  in ext2fs_open2()
249 	if (fs->super->s_magic != EXT2_SUPER_MAGIC)  in ext2fs_open2()
254 	if (fs->super->s_rev_level > EXT2_LIB_CURRENT_REV) {  in ext2fs_open2()
263 		features = fs->super->s_feature_incompat;  in ext2fs_open2()
273 		features = fs->super->s_feature_ro_compat;  in ext2fs_open2()
285 		    ext2fs_has_feature_journal_dev(fs->super)) {  in ext2fs_open2()
291 	if (fs->super->s_log_block_size >  in ext2fs_open2()
301 	if (ext2fs_has_feature_bigalloc(fs->super) &&  in ext2fs_open2()
307 	if (!ext2fs_has_feature_bigalloc(fs->super) &&  in ext2fs_open2()
308 	    (fs->super->s_log_block_size != fs->super->s_log_cluster_size)) {  in ext2fs_open2()
312 	fs->fragsize = fs->blocksize = EXT2_BLOCK_SIZE(fs->super);  in ext2fs_open2()
313 	inode_size = EXT2_INODE_SIZE(fs->super);  in ext2fs_open2()
322 	if (ext2fs_has_feature_64bit(fs->super)) {  in ext2fs_open2()
323 		if (fs->super->s_desc_size < EXT2_MIN_DESC_SIZE_64BIT) {  in ext2fs_open2()
329 	fs->cluster_ratio_bits = fs->super->s_log_cluster_size -  in ext2fs_open2()
330 		fs->super->s_log_block_size;  in ext2fs_open2()
331 	if (EXT2_BLOCKS_PER_GROUP(fs->super) !=  in ext2fs_open2()
332 	    EXT2_CLUSTERS_PER_GROUP(fs->super) << fs->cluster_ratio_bits) {  in ext2fs_open2()
336 	fs->inode_blocks_per_group = ((EXT2_INODES_PER_GROUP(fs->super) *  in ext2fs_open2()
337 				       EXT2_INODE_SIZE(fs->super) +  in ext2fs_open2()
338 				       EXT2_BLOCK_SIZE(fs->super) - 1) /  in ext2fs_open2()
339 				      EXT2_BLOCK_SIZE(fs->super));  in ext2fs_open2()
355 	if (ext2fs_has_feature_journal_dev(fs->super)) {  in ext2fs_open2()
361 	if (EXT2_INODES_PER_GROUP(fs->super) == 0) {  in ext2fs_open2()
371 	blocks_per_group = EXT2_BLOCKS_PER_GROUP(fs->super);  in ext2fs_open2()
373 	    blocks_per_group > EXT2_MAX_BLOCKS_PER_GROUP(fs->super) ||  in ext2fs_open2()
374 	    fs->inode_blocks_per_group > EXT2_MAX_INODES_PER_GROUP(fs->super) ||  in ext2fs_open2()
375            EXT2_DESC_PER_BLOCK(fs->super) == 0 ||  in ext2fs_open2()
376            fs->super->s_first_data_block >= ext2fs_blocks_count(fs->super)) {  in ext2fs_open2()
380 	groups_cnt = ext2fs_div64_ceil(ext2fs_blocks_count(fs->super) -  in ext2fs_open2()
381 				       fs->super->s_first_data_block,  in ext2fs_open2()
389 	    (__u64)fs->group_desc_count * EXT2_INODES_PER_GROUP(fs->super) !=  in ext2fs_open2()
390 	    fs->super->s_inodes_count) {  in ext2fs_open2()
395 					  EXT2_DESC_PER_BLOCK(fs->super));  in ext2fs_open2()
401 		group_block = fs->super->s_first_data_block;  in ext2fs_open2()
417 	groups_per_block = EXT2_DESC_PER_BLOCK(fs->super);  in ext2fs_open2()
419 	if (ext2fs_has_feature_meta_bg(fs->super) &&  in ext2fs_open2()
421 		first_meta_bg = fs->super->s_first_meta_bg;  in ext2fs_open2()
462 	fs->stride = fs->super->s_raid_stride;  in ext2fs_open2()
483 	if (ext2fs_has_feature_mmp(fs->super) &&  in ext2fs_open2()
501 		ext2fs_set_feature_shared_blocks(fs->super);  in ext2fs_open2()
504 	if (ext2fs_has_feature_casefold(fs->super))  in ext2fs_open2()
505 		fs->encoding = ext2fs_load_nls_table(fs->super->s_encoding);  in ext2fs_open2()