73 					struct ext4_super_block *es);
75 				  struct ext4_super_block *es);
267 				 struct ext4_super_block *es)  in ext4_verify_csum_type()  argument
272 	return es->s_checksum_type == EXT4_CRC32C_CHKSUM;  in ext4_verify_csum_type()
276 			    struct ext4_super_block *es)  in ext4_superblock_csum()  argument
282 	csum = ext4_chksum(sbi, ~0, (char *)es, offset);  in ext4_superblock_csum()
288 				       struct ext4_super_block *es)  in ext4_superblock_csum_verify()  argument
293 	return es->s_checksum == ext4_superblock_csum(sb, es);  in ext4_superblock_csum_verify()
298 	struct ext4_super_block *es = EXT4_SB(sb)->s_es;  in ext4_superblock_csum_set()  local
303 	es->s_checksum = ext4_superblock_csum(sb, es);  in ext4_superblock_csum_set()
430 #define ext4_update_tstamp(es, tstamp) \  argument
431 	__ext4_update_tstamp(&(es)->tstamp, &(es)->tstamp ## _hi, \
433 #define ext4_get_tstamp(es, tstamp) \  argument
434 	__ext4_get_tstamp(&(es)->tstamp, &(es)->tstamp ## _hi)
1075 	struct ext4_super_block *es = EXT4_SB(sb)->s_es;  in ext4_update_dynamic_rev()  local
1077 	if (le32_to_cpu(es->s_rev_level) > EXT4_GOOD_OLD_REV)  in ext4_update_dynamic_rev()
1085 	es->s_first_ino = cpu_to_le32(EXT4_GOOD_OLD_FIRST_INO);  in ext4_update_dynamic_rev()
1086 	es->s_inode_size = cpu_to_le16(EXT4_GOOD_OLD_INODE_SIZE);  in ext4_update_dynamic_rev()
1087 	es->s_rev_level = cpu_to_le32(EXT4_DYNAMIC_REV);  in ext4_update_dynamic_rev()
1190 	struct ext4_super_block *es = sbi->s_es;  in ext4_put_super()  local
1236 		es->s_state = cpu_to_le16(sbi->s_mount_state);  in ext4_put_super()
1845 ext4_sb_read_encoding(const struct ext4_super_block *es)  in ext4_sb_read_encoding()  argument
1847 	__u16 magic = le16_to_cpu(es->s_encoding);  in ext4_sb_read_encoding()
2895 	struct ext4_super_block *es = sbi->s_es;  in _ext4_show_options()  local
2921 	    le16_to_cpu(es->s_def_resuid) != EXT4_DEF_RESUID)  in _ext4_show_options()
2925 	    le16_to_cpu(es->s_def_resgid) != EXT4_DEF_RESGID)  in _ext4_show_options()
2928 	def_errors = nodefs ? -1 : le16_to_cpu(es->s_errors);  in _ext4_show_options()
3009 static int ext4_setup_super(struct super_block *sb, struct ext4_super_block *es,  in ext4_setup_super()  argument
3015 	if (le32_to_cpu(es->s_rev_level) > EXT4_MAX_SUPP_REV) {  in ext4_setup_super()
3030 	else if ((__s16) le16_to_cpu(es->s_max_mnt_count) > 0 &&  in ext4_setup_super()
3031 		 le16_to_cpu(es->s_mnt_count) >=  in ext4_setup_super()
3032 		 (unsigned short) (__s16) le16_to_cpu(es->s_max_mnt_count))  in ext4_setup_super()
3036 	else if (le32_to_cpu(es->s_checkinterval) &&  in ext4_setup_super()
3037 		 (ext4_get_tstamp(es, s_lastcheck) +  in ext4_setup_super()
3038 		  le32_to_cpu(es->s_checkinterval) <= ktime_get_real_seconds()))  in ext4_setup_super()
3043 		es->s_state &= cpu_to_le16(~EXT4_VALID_FS);  in ext4_setup_super()
3044 	if (!(__s16) le16_to_cpu(es->s_max_mnt_count))  in ext4_setup_super()
3045 		es->s_max_mnt_count = cpu_to_le16(EXT4_DFL_MAX_MNT_COUNT);  in ext4_setup_super()
3046 	le16_add_cpu(&es->s_mnt_count, 1);  in ext4_setup_super()
3047 	ext4_update_tstamp(es, s_mtime);  in ext4_setup_super()
3590 	struct ext4_super_block *es = sbi->s_es;  in print_daily_error_info()  local
3592 	if (es->s_error_count)  in print_daily_error_info()
3595 			 le32_to_cpu(es->s_error_count));  in print_daily_error_info()
3596 	if (es->s_first_error_time) {  in print_daily_error_info()
3599 		       ext4_get_tstamp(es, s_first_error_time),  in print_daily_error_info()
3600 		       (int) sizeof(es->s_first_error_func),  in print_daily_error_info()
3601 		       es->s_first_error_func,  in print_daily_error_info()
3602 		       le32_to_cpu(es->s_first_error_line));  in print_daily_error_info()
3603 		if (es->s_first_error_ino)  in print_daily_error_info()
3605 			       le32_to_cpu(es->s_first_error_ino));  in print_daily_error_info()
3606 		if (es->s_first_error_block)  in print_daily_error_info()
3608 			       le64_to_cpu(es->s_first_error_block));  in print_daily_error_info()
3611 	if (es->s_last_error_time) {  in print_daily_error_info()
3614 		       ext4_get_tstamp(es, s_last_error_time),  in print_daily_error_info()
3615 		       (int) sizeof(es->s_last_error_func),  in print_daily_error_info()
3616 		       es->s_last_error_func,  in print_daily_error_info()
3617 		       le32_to_cpu(es->s_last_error_line));  in print_daily_error_info()
3618 		if (es->s_last_error_ino)  in print_daily_error_info()
3620 			       le32_to_cpu(es->s_last_error_ino));  in print_daily_error_info()
3621 		if (es->s_last_error_block)  in print_daily_error_info()
3623 			       le64_to_cpu(es->s_last_error_block));  in print_daily_error_info()
4128 	struct ext4_super_block *es = sbi->s_es;  in ext4_calculate_overhead()  local
4130 	unsigned int j_blocks, j_inum = le32_to_cpu(es->s_journal_inum);  in ext4_calculate_overhead()
4147 	overhead = EXT4_B2C(sbi, le32_to_cpu(es->s_first_data_block));  in ext4_calculate_overhead()
4281 			      struct ext4_super_block *es)  in ext4_set_def_opts()  argument
4286 	def_mount_opts = le32_to_cpu(es->s_default_mount_opts);  in ext4_set_def_opts()
4312 	if (le16_to_cpu(es->s_errors) == EXT4_ERRORS_PANIC)  in ext4_set_def_opts()
4314 	else if (le16_to_cpu(es->s_errors) == EXT4_ERRORS_CONTINUE)  in ext4_set_def_opts()
4341 	struct ext4_super_block *es = sbi->s_es;  in ext4_handle_clustersize()  local
4345 	clustersize = BLOCK_SIZE << le32_to_cpu(es->s_log_cluster_size);  in ext4_handle_clustersize()
4353 		sbi->s_cluster_bits = le32_to_cpu(es->s_log_cluster_size) -  in ext4_handle_clustersize()
4354 			le32_to_cpu(es->s_log_block_size);  in ext4_handle_clustersize()
4356 			le32_to_cpu(es->s_clusters_per_group);  in ext4_handle_clustersize()
4421 				struct ext4_super_block *es)  in ext4_inode_info_init()  argument
4425 	if (le32_to_cpu(es->s_rev_level) == EXT4_GOOD_OLD_REV) {  in ext4_inode_info_init()
4429 		sbi->s_inode_size = le16_to_cpu(es->s_inode_size);  in ext4_inode_info_init()
4430 		sbi->s_first_ino = le32_to_cpu(es->s_first_ino);  in ext4_inode_info_init()
4469 			v = le16_to_cpu(es->s_want_extra_isize);  in ext4_inode_info_init()
4478 			v = le16_to_cpu(es->s_min_extra_isize);  in ext4_inode_info_init()
4493 static int ext4_encoding_init(struct super_block *sb, struct ext4_super_block *es)  in ext4_encoding_init()  argument
4497 	__u16 encoding_flags = le16_to_cpu(es->s_encoding_flags);  in ext4_encoding_init()
4502 	encoding_info = ext4_sb_read_encoding(es);  in ext4_encoding_init()
4534 static inline int ext4_encoding_init(struct super_block *sb, struct ext4_super_block *es)  in ext4_encoding_init()  argument
4540 static int ext4_init_metadata_csum(struct super_block *sb, struct ext4_super_block *es)  in ext4_init_metadata_csum()  argument
4551 	if (!ext4_verify_csum_type(sb, es)) {  in ext4_init_metadata_csum()
4569 	if (!ext4_superblock_csum_verify(sb, es)) {  in ext4_init_metadata_csum()
4577 		sbi->s_csum_seed = le32_to_cpu(es->s_checksum_seed);  in ext4_init_metadata_csum()
4579 		sbi->s_csum_seed = ext4_chksum(sbi, ~0, es->s_uuid,  in ext4_init_metadata_csum()
4580 					       sizeof(es->s_uuid));  in ext4_init_metadata_csum()
4585 					    struct ext4_super_block *es,  in ext4_check_feature_compatibility()  argument
4588 	if (le32_to_cpu(es->s_rev_level) == EXT4_GOOD_OLD_REV &&  in ext4_check_feature_compatibility()
4596 	if (es->s_creator_os == cpu_to_le32(EXT4_OS_HURD)) {  in ext4_check_feature_compatibility()
4661 			       struct ext4_super_block *es)  in ext4_geometry_check()  argument
4668 	if (blocks_count && ext4_blocks_count(es) > blocks_count) {  in ext4_geometry_check()
4671 		       ext4_blocks_count(es), blocks_count);  in ext4_geometry_check()
4679 	if (le32_to_cpu(es->s_first_data_block) >= ext4_blocks_count(es)) {  in ext4_geometry_check()
4682 			 le32_to_cpu(es->s_first_data_block),  in ext4_geometry_check()
4683 			 ext4_blocks_count(es));  in ext4_geometry_check()
4686 	if ((es->s_first_data_block == 0) && (es->s_log_block_size == 0) &&  in ext4_geometry_check()
4693 	blocks_count = (ext4_blocks_count(es) -  in ext4_geometry_check()
4694 			le32_to_cpu(es->s_first_data_block) +  in ext4_geometry_check()
4701 		       ext4_blocks_count(es),  in ext4_geometry_check()
4702 		       le32_to_cpu(es->s_first_data_block),  in ext4_geometry_check()
4710 	    le32_to_cpu(es->s_inodes_count)) {  in ext4_geometry_check()
4712 			 le32_to_cpu(es->s_inodes_count),  in ext4_geometry_check()
4734 				struct ext4_super_block *es,  in ext4_group_desc_init()  argument
4747 		if (le32_to_cpu(es->s_first_meta_bg) > db_count) {  in ext4_group_desc_init()
4751 				 le32_to_cpu(es->s_first_meta_bg), db_count);  in ext4_group_desc_init()
4801 				      struct ext4_super_block *es,  in ext4_load_and_init_journal()  argument
4807 	err = ext4_load_journal(sb, es, ctx->journal_devnum);  in ext4_load_and_init_journal()
4924 	struct ext4_super_block *es;  in ext4_load_super()  local
4957 	es = (struct ext4_super_block *) (bh->b_data + offset);  in ext4_load_super()
4958 	sbi->s_es = es;  in ext4_load_super()
4959 	sb->s_magic = le16_to_cpu(es->s_magic);  in ext4_load_super()
4966 	if (le32_to_cpu(es->s_log_block_size) >  in ext4_load_super()
4970 			 le32_to_cpu(es->s_log_block_size));  in ext4_load_super()
4973 	if (le32_to_cpu(es->s_log_cluster_size) >  in ext4_load_super()
4977 			 le32_to_cpu(es->s_log_cluster_size));  in ext4_load_super()
4981 	blocksize = EXT4_MIN_BLOCK_SIZE << le32_to_cpu(es->s_log_block_size);  in ext4_load_super()
5016 	es = (struct ext4_super_block *)(bh->b_data + offset);  in ext4_load_super()
5017 	sbi->s_es = es;  in ext4_load_super()
5018 	if (es->s_magic != cpu_to_le16(EXT4_SUPER_MAGIC)) {  in ext4_load_super()
5032 	struct ext4_super_block *es = NULL;  in __ext4_fill_super()  local
5060 	es = sbi->s_es;  in __ext4_fill_super()
5061 	sbi->s_kbytes_written = le64_to_cpu(es->s_kbytes_written);  in __ext4_fill_super()
5063 	err = ext4_init_metadata_csum(sb, es);  in __ext4_fill_super()
5067 	ext4_set_def_opts(sb, es);  in __ext4_fill_super()
5069 	sbi->s_resuid = make_kuid(&init_user_ns, le16_to_cpu(es->s_def_resuid));  in __ext4_fill_super()
5070 	sbi->s_resgid = make_kgid(&init_user_ns, le16_to_cpu(es->s_def_resgid));  in __ext4_fill_super()
5081 	if (ext4_inode_info_init(sb, es))  in __ext4_fill_super()
5096 	if (ext4_encoding_init(sb, es))  in __ext4_fill_super()
5108 	if (ext4_check_feature_compatibility(sb, es, silent))  in __ext4_fill_super()
5138 	if (ext4_has_feature_encrypt(sb) && es->s_encryption_level) {  in __ext4_fill_super()
5140 			 es->s_encryption_level);  in __ext4_fill_super()
5149 	sbi->s_desc_size = le16_to_cpu(es->s_desc_size);  in __ext4_fill_super()
5162 	sbi->s_blocks_per_group = le32_to_cpu(es->s_blocks_per_group);  in __ext4_fill_super()
5163 	sbi->s_inodes_per_group = le32_to_cpu(es->s_inodes_per_group);  in __ext4_fill_super()
5180 	sbi->s_mount_state = le16_to_cpu(es->s_state) & ~EXT4_FC_REPLAY;  in __ext4_fill_super()
5185 		sbi->s_hash_seed[i] = le32_to_cpu(es->s_hash_seed[i]);  in __ext4_fill_super()
5186 	sbi->s_def_hash_version = es->s_def_hash_version;  in __ext4_fill_super()
5188 		i = le32_to_cpu(es->s_flags);  in __ext4_fill_super()
5194 				es->s_flags |=  in __ext4_fill_super()
5199 				es->s_flags |=  in __ext4_fill_super()
5213 					ext4_blocks_count(es));  in __ext4_fill_super()
5220 	if (ext4_geometry_check(sb, es))  in __ext4_fill_super()
5223 	err = ext4_group_desc_init(sb, es, logical_sb_block, &first_not_zeroed);  in __ext4_fill_super()
5258 	memcpy(&sb->s_uuid, es->s_uuid, sizeof(es->s_uuid));  in __ext4_fill_super()
5267 	needs_recovery = (es->s_last_orphan != 0 ||  in __ext4_fill_super()
5272 		if (ext4_multi_mount_protect(sb, le64_to_cpu(es->s_mmp_block)))  in __ext4_fill_super()
5280 		err = ext4_load_and_init_journal(sb, es, ctx);  in __ext4_fill_super()
5347 	sbi->s_overhead = le32_to_cpu(es->s_overhead_clusters);  in __ext4_fill_super()
5349 	if (sbi->s_overhead > ext4_blocks_count(es))  in __ext4_fill_super()
5401 	ret = ext4_setup_super(sb, es, sb_rdonly(sb));  in __ext4_fill_super()
5515 	ext4_orphan_cleanup(sb, es);  in __ext4_fill_super()
5527 		err = ext4_mark_recovery_complete(sb, es);  in __ext4_fill_super()
5536 	if (es->s_error_count)  in __ext4_fill_super()
5768 	struct ext4_super_block *es;  in ext4_get_dev_journal()  local
5795 	es = (struct ext4_super_block *) (bh->b_data + offset);  in ext4_get_dev_journal()
5796 	if ((le16_to_cpu(es->s_magic) != EXT4_SUPER_MAGIC) ||  in ext4_get_dev_journal()
5797 	    !(le32_to_cpu(es->s_feature_incompat) &  in ext4_get_dev_journal()
5805 	if ((le32_to_cpu(es->s_feature_ro_compat) &  in ext4_get_dev_journal()
5807 	    es->s_checksum != ext4_superblock_csum(sb, es)) {  in ext4_get_dev_journal()
5814 	if (memcmp(EXT4_SB(sb)->s_es->s_journal_uuid, es->s_uuid, 16)) {  in ext4_get_dev_journal()
5820 	len = ext4_blocks_count(es);  in ext4_get_dev_journal()
5853 			     struct ext4_super_block *es,  in ext4_load_journal()  argument
5857 	unsigned int journal_inum = le32_to_cpu(es->s_journal_inum);  in ext4_load_journal()
5867 	    journal_devnum != le32_to_cpu(es->s_journal_dev)) {  in ext4_load_journal()
5872 		journal_dev = new_decode_dev(le32_to_cpu(es->s_journal_dev));  in ext4_load_journal()
5929 			memcpy(save, ((char *) es) +  in ext4_load_journal()
5933 			memcpy(((char *) es) + EXT4_S_ERR_START,  in ext4_load_journal()
5944 	err = ext4_clear_journal_err(sb, es);  in ext4_load_journal()
5952 	    journal_devnum != le32_to_cpu(es->s_journal_dev)) {  in ext4_load_journal()
5953 		es->s_journal_dev = cpu_to_le32(journal_devnum);  in ext4_load_journal()
5970 	struct ext4_super_block *es = sbi->s_es;  in ext4_update_super()  local
5985 		ext4_update_tstamp(es, s_wtime);  in ext4_update_super()
5986 	es->s_kbytes_written =  in ext4_update_super()
5991 		ext4_free_blocks_count_set(es,  in ext4_update_super()
5995 		es->s_free_inodes_count =  in ext4_update_super()
6001 		es->s_state |= cpu_to_le16(EXT4_ERROR_FS);  in ext4_update_super()
6002 		if (!es->s_first_error_time && !es->s_first_error_time_hi) {  in ext4_update_super()
6003 			__ext4_update_tstamp(&es->s_first_error_time,  in ext4_update_super()
6004 					     &es->s_first_error_time_hi,  in ext4_update_super()
6006 			strncpy(es->s_first_error_func, sbi->s_first_error_func,  in ext4_update_super()
6007 				sizeof(es->s_first_error_func));  in ext4_update_super()
6008 			es->s_first_error_line =  in ext4_update_super()
6010 			es->s_first_error_ino =  in ext4_update_super()
6012 			es->s_first_error_block =  in ext4_update_super()
6014 			es->s_first_error_errcode =  in ext4_update_super()
6017 		__ext4_update_tstamp(&es->s_last_error_time,  in ext4_update_super()
6018 				     &es->s_last_error_time_hi,  in ext4_update_super()
6020 		strncpy(es->s_last_error_func, sbi->s_last_error_func,  in ext4_update_super()
6021 			sizeof(es->s_last_error_func));  in ext4_update_super()
6022 		es->s_last_error_line = cpu_to_le32(sbi->s_last_error_line);  in ext4_update_super()
6023 		es->s_last_error_ino = cpu_to_le32(sbi->s_last_error_ino);  in ext4_update_super()
6024 		es->s_last_error_block = cpu_to_le64(sbi->s_last_error_block);  in ext4_update_super()
6025 		es->s_last_error_errcode =  in ext4_update_super()
6031 		if (!es->s_error_count)  in ext4_update_super()
6033 		le32_add_cpu(&es->s_error_count, sbi->s_add_error_count);  in ext4_update_super()
6097 				       struct ext4_super_block *es)  in ext4_mark_recovery_complete()  argument
6137 				   struct ext4_super_block *es)  in ext4_clear_journal_err()  argument
6165 		es->s_state |= cpu_to_le16(EXT4_ERROR_FS);  in ext4_clear_journal_err()
6317 	struct ext4_super_block *es;  in __ext4_remount()  local
6406 	es = sbi->s_es;  in __ext4_remount()
6441 			if (!(es->s_state & cpu_to_le16(EXT4_VALID_FS)) &&  in __ext4_remount()
6443 				es->s_state = cpu_to_le16(sbi->s_mount_state);  in __ext4_remount()
6450 				ext4_mark_recovery_complete(sb, es);  in __ext4_remount()
6482 			if (es->s_last_orphan || !ext4_orphan_file_empty(sb)) {  in __ext4_remount()
6498 				err = ext4_clear_journal_err(sb, es);  in __ext4_remount()
6502 			sbi->s_mount_state = (le16_to_cpu(es->s_state) &  in __ext4_remount()
6505 			err = ext4_setup_super(sb, es, 0);  in __ext4_remount()
6512 						le64_to_cpu(es->s_mmp_block))) {  in __ext4_remount()
6667 	struct ext4_super_block *es = sbi->s_es;  in ext4_statfs()  local
6677 	buf->f_blocks = ext4_blocks_count(es) - EXT4_C2B(sbi, overhead);  in ext4_statfs()
6683 			(ext4_r_blocks_count(es) + resv_blocks);  in ext4_statfs()
6684 	if (buf->f_bfree < (ext4_r_blocks_count(es) + resv_blocks))  in ext4_statfs()
6686 	buf->f_files = le32_to_cpu(es->s_inodes_count);  in ext4_statfs()
6689 	buf->f_fsid = uuid_to_fsid(es->s_uuid);  in ext4_statfs()