71 					struct ext4_super_block *es);
73 				  struct ext4_super_block *es);
254 				 struct ext4_super_block *es)  in ext4_verify_csum_type()  argument
259 	return es->s_checksum_type == EXT4_CRC32C_CHKSUM;  in ext4_verify_csum_type()
263 				   struct ext4_super_block *es)  in ext4_superblock_csum()  argument
269 	csum = ext4_chksum(sbi, ~0, (char *)es, offset);  in ext4_superblock_csum()
275 				       struct ext4_super_block *es)  in ext4_superblock_csum_verify()  argument
280 	return es->s_checksum == ext4_superblock_csum(sb, es);  in ext4_superblock_csum_verify()
285 	struct ext4_super_block *es = EXT4_SB(sb)->s_es;  in ext4_superblock_csum_set()  local
290 	es->s_checksum = ext4_superblock_csum(sb, es);  in ext4_superblock_csum_set()
417 #define ext4_update_tstamp(es, tstamp) \  argument
418 	__ext4_update_tstamp(&(es)->tstamp, &(es)->tstamp ## _hi, \
420 #define ext4_get_tstamp(es, tstamp) \  argument
421 	__ext4_get_tstamp(&(es)->tstamp, &(es)->tstamp ## _hi)
1049 	struct ext4_super_block *es = EXT4_SB(sb)->s_es;  in ext4_update_dynamic_rev()  local
1051 	if (le32_to_cpu(es->s_rev_level) > EXT4_GOOD_OLD_REV)  in ext4_update_dynamic_rev()
1059 	es->s_first_ino = cpu_to_le32(EXT4_GOOD_OLD_FIRST_INO);  in ext4_update_dynamic_rev()
1060 	es->s_inode_size = cpu_to_le16(EXT4_GOOD_OLD_INODE_SIZE);  in ext4_update_dynamic_rev()
1061 	es->s_rev_level = cpu_to_le32(EXT4_DYNAMIC_REV);  in ext4_update_dynamic_rev()
1164 	struct ext4_super_block *es = sbi->s_es;  in ext4_put_super()  local
1202 		es->s_state = cpu_to_le16(sbi->s_mount_state);  in ext4_put_super()
2026 static int ext4_sb_read_encoding(const struct ext4_super_block *es,  in ext4_sb_read_encoding()  argument
2030 	__u16 magic = le16_to_cpu(es->s_encoding);  in ext4_sb_read_encoding()
2041 	*flags = le16_to_cpu(es->s_encoding_flags);  in ext4_sb_read_encoding()
2546 	struct ext4_super_block *es = sbi->s_es;  in _ext4_show_options()  local
2572 	    le16_to_cpu(es->s_def_resuid) != EXT4_DEF_RESUID)  in _ext4_show_options()
2576 	    le16_to_cpu(es->s_def_resgid) != EXT4_DEF_RESGID)  in _ext4_show_options()
2579 	def_errors = nodefs ? -1 : le16_to_cpu(es->s_errors);  in _ext4_show_options()
2653 static int ext4_setup_super(struct super_block *sb, struct ext4_super_block *es,  in ext4_setup_super()  argument
2659 	if (le32_to_cpu(es->s_rev_level) > EXT4_MAX_SUPP_REV) {  in ext4_setup_super()
2674 	else if ((__s16) le16_to_cpu(es->s_max_mnt_count) > 0 &&  in ext4_setup_super()
2675 		 le16_to_cpu(es->s_mnt_count) >=  in ext4_setup_super()
2676 		 (unsigned short) (__s16) le16_to_cpu(es->s_max_mnt_count))  in ext4_setup_super()
2680 	else if (le32_to_cpu(es->s_checkinterval) &&  in ext4_setup_super()
2681 		 (ext4_get_tstamp(es, s_lastcheck) +  in ext4_setup_super()
2682 		  le32_to_cpu(es->s_checkinterval) <= ktime_get_real_seconds()))  in ext4_setup_super()
2687 		es->s_state &= cpu_to_le16(~EXT4_VALID_FS);  in ext4_setup_super()
2688 	if (!(__s16) le16_to_cpu(es->s_max_mnt_count))  in ext4_setup_super()
2689 		es->s_max_mnt_count = cpu_to_le16(EXT4_DFL_MAX_MNT_COUNT);  in ext4_setup_super()
2690 	le16_add_cpu(&es->s_mnt_count, 1);  in ext4_setup_super()
2691 	ext4_update_tstamp(es, s_mtime);  in ext4_setup_super()
3220 	struct ext4_super_block *es = sbi->s_es;  in print_daily_error_info()  local
3222 	if (es->s_error_count)  in print_daily_error_info()
3225 			 le32_to_cpu(es->s_error_count));  in print_daily_error_info()
3226 	if (es->s_first_error_time) {  in print_daily_error_info()
3229 		       ext4_get_tstamp(es, s_first_error_time),  in print_daily_error_info()
3230 		       (int) sizeof(es->s_first_error_func),  in print_daily_error_info()
3231 		       es->s_first_error_func,  in print_daily_error_info()
3232 		       le32_to_cpu(es->s_first_error_line));  in print_daily_error_info()
3233 		if (es->s_first_error_ino)  in print_daily_error_info()
3235 			       le32_to_cpu(es->s_first_error_ino));  in print_daily_error_info()
3236 		if (es->s_first_error_block)  in print_daily_error_info()
3238 			       le64_to_cpu(es->s_first_error_block));  in print_daily_error_info()
3241 	if (es->s_last_error_time) {  in print_daily_error_info()
3244 		       ext4_get_tstamp(es, s_last_error_time),  in print_daily_error_info()
3245 		       (int) sizeof(es->s_last_error_func),  in print_daily_error_info()
3246 		       es->s_last_error_func,  in print_daily_error_info()
3247 		       le32_to_cpu(es->s_last_error_line));  in print_daily_error_info()
3248 		if (es->s_last_error_ino)  in print_daily_error_info()
3250 			       le32_to_cpu(es->s_last_error_ino));  in print_daily_error_info()
3251 		if (es->s_last_error_block)  in print_daily_error_info()
3253 			       le64_to_cpu(es->s_last_error_block));  in print_daily_error_info()
3757 	struct ext4_super_block *es = sbi->s_es;  in ext4_calculate_overhead()  local
3759 	unsigned int j_blocks, j_inum = le32_to_cpu(es->s_journal_inum);  in ext4_calculate_overhead()
3776 	overhead = EXT4_B2C(sbi, le32_to_cpu(es->s_first_data_block));  in ext4_calculate_overhead()
3878 	struct ext4_super_block *es = NULL;  in ext4_fill_super()  local
3951 	es = (struct ext4_super_block *) (bh->b_data + offset);  in ext4_fill_super()
3952 	sbi->s_es = es;  in ext4_fill_super()
3953 	sb->s_magic = le16_to_cpu(es->s_magic);  in ext4_fill_super()
3956 	sbi->s_kbytes_written = le64_to_cpu(es->s_kbytes_written);  in ext4_fill_super()
3965 	if (!ext4_verify_csum_type(sb, es)) {  in ext4_fill_super()
3984 	if (!ext4_superblock_csum_verify(sb, es)) {  in ext4_fill_super()
3994 		sbi->s_csum_seed = le32_to_cpu(es->s_checksum_seed);  in ext4_fill_super()
3996 		sbi->s_csum_seed = ext4_chksum(sbi, ~0, es->s_uuid,  in ext4_fill_super()
3997 					       sizeof(es->s_uuid));  in ext4_fill_super()
4000 	def_mount_opts = le32_to_cpu(es->s_default_mount_opts);  in ext4_fill_super()
4037 	sbi->s_resuid = make_kuid(&init_user_ns, le16_to_cpu(es->s_def_resuid));  in ext4_fill_super()
4038 	sbi->s_resgid = make_kgid(&init_user_ns, le16_to_cpu(es->s_def_resgid));  in ext4_fill_super()
4060 	if (le32_to_cpu(es->s_log_block_size) >  in ext4_fill_super()
4064 			 le32_to_cpu(es->s_log_block_size));  in ext4_fill_super()
4067 	if (le32_to_cpu(es->s_log_cluster_size) >  in ext4_fill_super()
4071 			 le32_to_cpu(es->s_log_cluster_size));  in ext4_fill_super()
4075 	blocksize = EXT4_MIN_BLOCK_SIZE << le32_to_cpu(es->s_log_block_size);  in ext4_fill_super()
4080 	if (le32_to_cpu(es->s_rev_level) == EXT4_GOOD_OLD_REV) {  in ext4_fill_super()
4084 		sbi->s_inode_size = le16_to_cpu(es->s_inode_size);  in ext4_fill_super()
4085 		sbi->s_first_ino = le32_to_cpu(es->s_first_ino);  in ext4_fill_super()
4123 			v = le16_to_cpu(es->s_want_extra_isize);  in ext4_fill_super()
4132 			v = le16_to_cpu(es->s_min_extra_isize);  in ext4_fill_super()
4166 		if (ext4_sb_read_encoding(es, &encoding_info,  in ext4_fill_super()
4220 	if (le32_to_cpu(es->s_rev_level) == EXT4_GOOD_OLD_REV &&  in ext4_fill_super()
4228 	if (es->s_creator_os == cpu_to_le32(EXT4_OS_HURD)) {  in ext4_fill_super()
4313 	if (ext4_has_feature_encrypt(sb) && es->s_encryption_level) {  in ext4_fill_super()
4315 			 es->s_encryption_level);  in ext4_fill_super()
4344 		es = (struct ext4_super_block *)(bh->b_data + offset);  in ext4_fill_super()
4345 		sbi->s_es = es;  in ext4_fill_super()
4346 		if (es->s_magic != cpu_to_le16(EXT4_SUPER_MAGIC)) {  in ext4_fill_super()
4358 	sbi->s_desc_size = le16_to_cpu(es->s_desc_size);  in ext4_fill_super()
4371 	sbi->s_blocks_per_group = le32_to_cpu(es->s_blocks_per_group);  in ext4_fill_super()
4372 	sbi->s_inodes_per_group = le32_to_cpu(es->s_inodes_per_group);  in ext4_fill_super()
4387 	sbi->s_mount_state = le16_to_cpu(es->s_state);  in ext4_fill_super()
4392 		sbi->s_hash_seed[i] = le32_to_cpu(es->s_hash_seed[i]);  in ext4_fill_super()
4393 	sbi->s_def_hash_version = es->s_def_hash_version;  in ext4_fill_super()
4395 		i = le32_to_cpu(es->s_flags);  in ext4_fill_super()
4401 				es->s_flags |=  in ext4_fill_super()
4406 				es->s_flags |=  in ext4_fill_super()
4413 	clustersize = BLOCK_SIZE << le32_to_cpu(es->s_log_cluster_size);  in ext4_fill_super()
4421 		sbi->s_cluster_bits = le32_to_cpu(es->s_log_cluster_size) -  in ext4_fill_super()
4422 			le32_to_cpu(es->s_log_block_size);  in ext4_fill_super()
4424 			le32_to_cpu(es->s_clusters_per_group);  in ext4_fill_super()
4466 					ext4_blocks_count(es));  in ext4_fill_super()
4478 	if (blocks_count && ext4_blocks_count(es) > blocks_count) {  in ext4_fill_super()
4481 		       ext4_blocks_count(es), blocks_count);  in ext4_fill_super()
4489 	if (le32_to_cpu(es->s_first_data_block) >= ext4_blocks_count(es)) {  in ext4_fill_super()
4492 			 le32_to_cpu(es->s_first_data_block),  in ext4_fill_super()
4493 			 ext4_blocks_count(es));  in ext4_fill_super()
4496 	if ((es->s_first_data_block == 0) && (es->s_log_block_size == 0) &&  in ext4_fill_super()
4503 	blocks_count = (ext4_blocks_count(es) -  in ext4_fill_super()
4504 			le32_to_cpu(es->s_first_data_block) +  in ext4_fill_super()
4511 		       ext4_blocks_count(es),  in ext4_fill_super()
4512 		       le32_to_cpu(es->s_first_data_block),  in ext4_fill_super()
4520 	    le32_to_cpu(es->s_inodes_count)) {  in ext4_fill_super()
4522 			 le32_to_cpu(es->s_inodes_count),  in ext4_fill_super()
4530 		if (le32_to_cpu(es->s_first_meta_bg) > db_count) {  in ext4_fill_super()
4534 				 le32_to_cpu(es->s_first_meta_bg), db_count);  in ext4_fill_super()
4610 	memcpy(&sb->s_uuid, es->s_uuid, sizeof(es->s_uuid));  in ext4_fill_super()
4637 	needs_recovery = (es->s_last_orphan != 0 ||  in ext4_fill_super()
4642 		if (ext4_multi_mount_protect(sb, le64_to_cpu(es->s_mmp_block)))  in ext4_fill_super()
4650 		err = ext4_load_journal(sb, es, parsed_opts.journal_devnum);  in ext4_fill_super()
4791 	if (es->s_overhead_clusters)  in ext4_fill_super()
4792 		sbi->s_overhead = le32_to_cpu(es->s_overhead_clusters);  in ext4_fill_super()
4836 	ret = ext4_setup_super(sb, es, sb_rdonly(sb));  in ext4_fill_super()
4958 	ext4_orphan_cleanup(sb, es);  in ext4_fill_super()
4962 		err = ext4_mark_recovery_complete(sb, es);  in ext4_fill_super()
4992 	if (es->s_error_count)  in ext4_fill_super()
5188 	struct ext4_super_block *es;  in ext4_get_dev_journal()  local
5215 	es = (struct ext4_super_block *) (bh->b_data + offset);  in ext4_get_dev_journal()
5216 	if ((le16_to_cpu(es->s_magic) != EXT4_SUPER_MAGIC) ||  in ext4_get_dev_journal()
5217 	    !(le32_to_cpu(es->s_feature_incompat) &  in ext4_get_dev_journal()
5225 	if ((le32_to_cpu(es->s_feature_ro_compat) &  in ext4_get_dev_journal()
5227 	    es->s_checksum != ext4_superblock_csum(sb, es)) {  in ext4_get_dev_journal()
5234 	if (memcmp(EXT4_SB(sb)->s_es->s_journal_uuid, es->s_uuid, 16)) {  in ext4_get_dev_journal()
5240 	len = ext4_blocks_count(es);  in ext4_get_dev_journal()
5273 			     struct ext4_super_block *es,  in ext4_load_journal()  argument
5277 	unsigned int journal_inum = le32_to_cpu(es->s_journal_inum);  in ext4_load_journal()
5287 	    journal_devnum != le32_to_cpu(es->s_journal_dev)) {  in ext4_load_journal()
5292 		journal_dev = new_decode_dev(le32_to_cpu(es->s_journal_dev));  in ext4_load_journal()
5349 			memcpy(save, ((char *) es) +  in ext4_load_journal()
5353 			memcpy(((char *) es) + EXT4_S_ERR_START,  in ext4_load_journal()
5364 	err = ext4_clear_journal_err(sb, es);  in ext4_load_journal()
5372 	    journal_devnum != le32_to_cpu(es->s_journal_dev)) {  in ext4_load_journal()
5373 		es->s_journal_dev = cpu_to_le32(journal_devnum);  in ext4_load_journal()
5390 	struct ext4_super_block *es = sbi->s_es;  in ext4_update_super()  local
5405 		ext4_update_tstamp(es, s_wtime);  in ext4_update_super()
5406 	es->s_kbytes_written =  in ext4_update_super()
5411 		ext4_free_blocks_count_set(es,  in ext4_update_super()
5415 		es->s_free_inodes_count =  in ext4_update_super()
5421 		es->s_state |= cpu_to_le16(EXT4_ERROR_FS);  in ext4_update_super()
5422 		if (!es->s_first_error_time && !es->s_first_error_time_hi) {  in ext4_update_super()
5423 			__ext4_update_tstamp(&es->s_first_error_time,  in ext4_update_super()
5424 					     &es->s_first_error_time_hi,  in ext4_update_super()
5426 			strncpy(es->s_first_error_func, sbi->s_first_error_func,  in ext4_update_super()
5427 				sizeof(es->s_first_error_func));  in ext4_update_super()
5428 			es->s_first_error_line =  in ext4_update_super()
5430 			es->s_first_error_ino =  in ext4_update_super()
5432 			es->s_first_error_block =  in ext4_update_super()
5434 			es->s_first_error_errcode =  in ext4_update_super()
5437 		__ext4_update_tstamp(&es->s_last_error_time,  in ext4_update_super()
5438 				     &es->s_last_error_time_hi,  in ext4_update_super()
5440 		strncpy(es->s_last_error_func, sbi->s_last_error_func,  in ext4_update_super()
5441 			sizeof(es->s_last_error_func));  in ext4_update_super()
5442 		es->s_last_error_line = cpu_to_le32(sbi->s_last_error_line);  in ext4_update_super()
5443 		es->s_last_error_ino = cpu_to_le32(sbi->s_last_error_ino);  in ext4_update_super()
5444 		es->s_last_error_block = cpu_to_le64(sbi->s_last_error_block);  in ext4_update_super()
5445 		es->s_last_error_errcode =  in ext4_update_super()
5451 		if (!es->s_error_count)  in ext4_update_super()
5453 		le32_add_cpu(&es->s_error_count, sbi->s_add_error_count);  in ext4_update_super()
5507 				       struct ext4_super_block *es)  in ext4_mark_recovery_complete()  argument
5547 				   struct ext4_super_block *es)  in ext4_clear_journal_err()  argument
5575 		es->s_state |= cpu_to_le16(EXT4_ERROR_FS);  in ext4_clear_journal_err()
5726 	struct ext4_super_block *es;  in ext4_remount()  local
5829 	es = sbi->s_es;  in ext4_remount()
5864 			if (!(es->s_state & cpu_to_le16(EXT4_VALID_FS)) &&  in ext4_remount()
5866 				es->s_state = cpu_to_le16(sbi->s_mount_state);  in ext4_remount()
5873 				ext4_mark_recovery_complete(sb, es);  in ext4_remount()
5905 			if (es->s_last_orphan || !ext4_orphan_file_empty(sb)) {  in ext4_remount()
5921 				err = ext4_clear_journal_err(sb, es);  in ext4_remount()
5925 			sbi->s_mount_state = le16_to_cpu(es->s_state);  in ext4_remount()
5927 			err = ext4_setup_super(sb, es, 0);  in ext4_remount()
5934 						le64_to_cpu(es->s_mmp_block))) {  in ext4_remount()
6077 	struct ext4_super_block *es = sbi->s_es;  in ext4_statfs()  local
6087 	buf->f_blocks = ext4_blocks_count(es) - EXT4_C2B(sbi, overhead);  in ext4_statfs()
6093 			(ext4_r_blocks_count(es) + resv_blocks);  in ext4_statfs()
6094 	if (buf->f_bfree < (ext4_r_blocks_count(es) + resv_blocks))  in ext4_statfs()
6096 	buf->f_files = le32_to_cpu(es->s_inodes_count);  in ext4_statfs()
6099 	buf->f_fsid = uuid_to_fsid(es->s_uuid);  in ext4_statfs()