73 					struct ext4_super_block *es);
75 				  struct ext4_super_block *es);
268 				 struct ext4_super_block *es)  in ext4_verify_csum_type()  argument
273 	return es->s_checksum_type == EXT4_CRC32C_CHKSUM;  in ext4_verify_csum_type()
277 			    struct ext4_super_block *es)  in ext4_superblock_csum()  argument
283 	csum = ext4_chksum(sbi, ~0, (char *)es, offset);  in ext4_superblock_csum()
289 				       struct ext4_super_block *es)  in ext4_superblock_csum_verify()  argument
294 	return es->s_checksum == ext4_superblock_csum(sb, es);  in ext4_superblock_csum_verify()
299 	struct ext4_super_block *es = EXT4_SB(sb)->s_es;  in ext4_superblock_csum_set()  local
304 	es->s_checksum = ext4_superblock_csum(sb, es);  in ext4_superblock_csum_set()
431 #define ext4_update_tstamp(es, tstamp) \  argument
432 	__ext4_update_tstamp(&(es)->tstamp, &(es)->tstamp ## _hi, \
434 #define ext4_get_tstamp(es, tstamp) \  argument
435 	__ext4_get_tstamp(&(es)->tstamp, &(es)->tstamp ## _hi)
455 	struct ext4_super_block *es = sbi->s_es;  in ext4_maybe_update_superblock()  local
467 	last_update = ext4_get_tstamp(es, s_wtime);  in ext4_maybe_update_superblock()
482 	diff_size = lifetime_write_kbytes - le64_to_cpu(es->s_kbytes_written);  in ext4_maybe_update_superblock()
1137 	struct ext4_super_block *es = EXT4_SB(sb)->s_es;  in ext4_update_dynamic_rev()  local
1139 	if (le32_to_cpu(es->s_rev_level) > EXT4_GOOD_OLD_REV)  in ext4_update_dynamic_rev()
1147 	es->s_first_ino = cpu_to_le32(EXT4_GOOD_OLD_FIRST_INO);  in ext4_update_dynamic_rev()
1148 	es->s_inode_size = cpu_to_le16(EXT4_GOOD_OLD_INODE_SIZE);  in ext4_update_dynamic_rev()
1149 	es->s_rev_level = cpu_to_le32(EXT4_DYNAMIC_REV);  in ext4_update_dynamic_rev()
1286 	struct ext4_super_block *es = sbi->s_es;  in ext4_put_super()  local
1331 		es->s_state = cpu_to_le16(sbi->s_mount_state);  in ext4_put_super()
1932 ext4_sb_read_encoding(const struct ext4_super_block *es)  in ext4_sb_read_encoding()  argument
1934 	__u16 magic = le16_to_cpu(es->s_encoding);  in ext4_sb_read_encoding()
2958 	struct ext4_super_block *es = sbi->s_es;  in _ext4_show_options()  local
2997 	    le16_to_cpu(es->s_def_resuid) != EXT4_DEF_RESUID)  in _ext4_show_options()
3001 	    le16_to_cpu(es->s_def_resgid) != EXT4_DEF_RESGID)  in _ext4_show_options()
3004 	def_errors = nodefs ? -1 : le16_to_cpu(es->s_errors);  in _ext4_show_options()
3085 static int ext4_setup_super(struct super_block *sb, struct ext4_super_block *es,  in ext4_setup_super()  argument
3091 	if (le32_to_cpu(es->s_rev_level) > EXT4_MAX_SUPP_REV) {  in ext4_setup_super()
3106 	else if ((__s16) le16_to_cpu(es->s_max_mnt_count) > 0 &&  in ext4_setup_super()
3107 		 le16_to_cpu(es->s_mnt_count) >=  in ext4_setup_super()
3108 		 (unsigned short) (__s16) le16_to_cpu(es->s_max_mnt_count))  in ext4_setup_super()
3112 	else if (le32_to_cpu(es->s_checkinterval) &&  in ext4_setup_super()
3113 		 (ext4_get_tstamp(es, s_lastcheck) +  in ext4_setup_super()
3114 		  le32_to_cpu(es->s_checkinterval) <= ktime_get_real_seconds()))  in ext4_setup_super()
3119 		es->s_state &= cpu_to_le16(~EXT4_VALID_FS);  in ext4_setup_super()
3120 	if (!(__s16) le16_to_cpu(es->s_max_mnt_count))  in ext4_setup_super()
3121 		es->s_max_mnt_count = cpu_to_le16(EXT4_DFL_MAX_MNT_COUNT);  in ext4_setup_super()
3122 	le16_add_cpu(&es->s_mnt_count, 1);  in ext4_setup_super()
3123 	ext4_update_tstamp(es, s_mtime);  in ext4_setup_super()
3664 	struct ext4_super_block *es = sbi->s_es;  in print_daily_error_info()  local
3666 	if (es->s_error_count)  in print_daily_error_info()
3669 			 le32_to_cpu(es->s_error_count));  in print_daily_error_info()
3670 	if (es->s_first_error_time) {  in print_daily_error_info()
3673 		       ext4_get_tstamp(es, s_first_error_time),  in print_daily_error_info()
3674 		       (int) sizeof(es->s_first_error_func),  in print_daily_error_info()
3675 		       es->s_first_error_func,  in print_daily_error_info()
3676 		       le32_to_cpu(es->s_first_error_line));  in print_daily_error_info()
3677 		if (es->s_first_error_ino)  in print_daily_error_info()
3679 			       le32_to_cpu(es->s_first_error_ino));  in print_daily_error_info()
3680 		if (es->s_first_error_block)  in print_daily_error_info()
3682 			       le64_to_cpu(es->s_first_error_block));  in print_daily_error_info()
3685 	if (es->s_last_error_time) {  in print_daily_error_info()
3688 		       ext4_get_tstamp(es, s_last_error_time),  in print_daily_error_info()
3689 		       (int) sizeof(es->s_last_error_func),  in print_daily_error_info()
3690 		       es->s_last_error_func,  in print_daily_error_info()
3691 		       le32_to_cpu(es->s_last_error_line));  in print_daily_error_info()
3692 		if (es->s_last_error_ino)  in print_daily_error_info()
3694 			       le32_to_cpu(es->s_last_error_ino));  in print_daily_error_info()
3695 		if (es->s_last_error_block)  in print_daily_error_info()
3697 			       le64_to_cpu(es->s_last_error_block));  in print_daily_error_info()
4198 	struct ext4_super_block *es = sbi->s_es;  in ext4_calculate_overhead()  local
4200 	unsigned int j_blocks, j_inum = le32_to_cpu(es->s_journal_inum);  in ext4_calculate_overhead()
4217 	overhead = EXT4_B2C(sbi, le32_to_cpu(es->s_first_data_block));  in ext4_calculate_overhead()
4351 			      struct ext4_super_block *es)  in ext4_set_def_opts()  argument
4356 	def_mount_opts = le32_to_cpu(es->s_default_mount_opts);  in ext4_set_def_opts()
4382 	if (le16_to_cpu(es->s_errors) == EXT4_ERRORS_PANIC)  in ext4_set_def_opts()
4384 	else if (le16_to_cpu(es->s_errors) == EXT4_ERRORS_CONTINUE)  in ext4_set_def_opts()
4411 	struct ext4_super_block *es = sbi->s_es;  in ext4_handle_clustersize()  local
4415 	clustersize = BLOCK_SIZE << le32_to_cpu(es->s_log_cluster_size);  in ext4_handle_clustersize()
4423 		sbi->s_cluster_bits = le32_to_cpu(es->s_log_cluster_size) -  in ext4_handle_clustersize()
4424 			le32_to_cpu(es->s_log_block_size);  in ext4_handle_clustersize()
4426 			le32_to_cpu(es->s_clusters_per_group);  in ext4_handle_clustersize()
4491 				struct ext4_super_block *es)  in ext4_inode_info_init()  argument
4495 	if (le32_to_cpu(es->s_rev_level) == EXT4_GOOD_OLD_REV) {  in ext4_inode_info_init()
4499 		sbi->s_inode_size = le16_to_cpu(es->s_inode_size);  in ext4_inode_info_init()
4500 		sbi->s_first_ino = le32_to_cpu(es->s_first_ino);  in ext4_inode_info_init()
4539 			v = le16_to_cpu(es->s_want_extra_isize);  in ext4_inode_info_init()
4548 			v = le16_to_cpu(es->s_min_extra_isize);  in ext4_inode_info_init()
4563 static int ext4_encoding_init(struct super_block *sb, struct ext4_super_block *es)  in ext4_encoding_init()  argument
4567 	__u16 encoding_flags = le16_to_cpu(es->s_encoding_flags);  in ext4_encoding_init()
4572 	encoding_info = ext4_sb_read_encoding(es);  in ext4_encoding_init()
4604 static inline int ext4_encoding_init(struct super_block *sb, struct ext4_super_block *es)  in ext4_encoding_init()  argument
4610 static int ext4_init_metadata_csum(struct super_block *sb, struct ext4_super_block *es)  in ext4_init_metadata_csum()  argument
4621 	if (!ext4_verify_csum_type(sb, es)) {  in ext4_init_metadata_csum()
4639 	if (!ext4_superblock_csum_verify(sb, es)) {  in ext4_init_metadata_csum()
4647 		sbi->s_csum_seed = le32_to_cpu(es->s_checksum_seed);  in ext4_init_metadata_csum()
4649 		sbi->s_csum_seed = ext4_chksum(sbi, ~0, es->s_uuid,  in ext4_init_metadata_csum()
4650 					       sizeof(es->s_uuid));  in ext4_init_metadata_csum()
4655 					    struct ext4_super_block *es,  in ext4_check_feature_compatibility()  argument
4660 	if (le32_to_cpu(es->s_rev_level) == EXT4_GOOD_OLD_REV &&  in ext4_check_feature_compatibility()
4668 	if (es->s_creator_os == cpu_to_le32(EXT4_OS_HURD)) {  in ext4_check_feature_compatibility()
4749 	if (ext4_has_feature_encrypt(sb) && es->s_encryption_level) {  in ext4_check_feature_compatibility()
4751 			 es->s_encryption_level);  in ext4_check_feature_compatibility()
4759 			       struct ext4_super_block *es)  in ext4_check_geometry()  argument
4776 					ext4_blocks_count(es));  in ext4_check_geometry()
4785 	if (blocks_count && ext4_blocks_count(es) > blocks_count) {  in ext4_check_geometry()
4788 		       ext4_blocks_count(es), blocks_count);  in ext4_check_geometry()
4796 	if (le32_to_cpu(es->s_first_data_block) >= ext4_blocks_count(es)) {  in ext4_check_geometry()
4799 			 le32_to_cpu(es->s_first_data_block),  in ext4_check_geometry()
4800 			 ext4_blocks_count(es));  in ext4_check_geometry()
4803 	if ((es->s_first_data_block == 0) && (es->s_log_block_size == 0) &&  in ext4_check_geometry()
4810 	blocks_count = (ext4_blocks_count(es) -  in ext4_check_geometry()
4811 			le32_to_cpu(es->s_first_data_block) +  in ext4_check_geometry()
4818 		       ext4_blocks_count(es),  in ext4_check_geometry()
4819 		       le32_to_cpu(es->s_first_data_block),  in ext4_check_geometry()
4827 	    le32_to_cpu(es->s_inodes_count)) {  in ext4_check_geometry()
4829 			 le32_to_cpu(es->s_inodes_count),  in ext4_check_geometry()
4838 				struct ext4_super_block *es,  in ext4_group_desc_init()  argument
4850 		if (le32_to_cpu(es->s_first_meta_bg) > db_count) {  in ext4_group_desc_init()
4854 				 le32_to_cpu(es->s_first_meta_bg), db_count);  in ext4_group_desc_init()
4900 				      struct ext4_super_block *es,  in ext4_load_and_init_journal()  argument
4906 	err = ext4_load_journal(sb, es, ctx->journal_devnum);  in ext4_load_and_init_journal()
5023 	struct ext4_super_block *es;  in ext4_load_super()  local
5056 	es = (struct ext4_super_block *) (bh->b_data + offset);  in ext4_load_super()
5057 	sbi->s_es = es;  in ext4_load_super()
5058 	sb->s_magic = le16_to_cpu(es->s_magic);  in ext4_load_super()
5065 	if (le32_to_cpu(es->s_log_block_size) >  in ext4_load_super()
5069 			 le32_to_cpu(es->s_log_block_size));  in ext4_load_super()
5072 	if (le32_to_cpu(es->s_log_cluster_size) >  in ext4_load_super()
5076 			 le32_to_cpu(es->s_log_cluster_size));  in ext4_load_super()
5080 	blocksize = EXT4_MIN_BLOCK_SIZE << le32_to_cpu(es->s_log_block_size);  in ext4_load_super()
5115 	es = (struct ext4_super_block *)(bh->b_data + offset);  in ext4_load_super()
5116 	sbi->s_es = es;  in ext4_load_super()
5117 	if (es->s_magic != cpu_to_le16(EXT4_SUPER_MAGIC)) {  in ext4_load_super()
5132 	struct ext4_super_block *es = sbi->s_es;  in ext4_hash_info_init()  local
5136 		sbi->s_hash_seed[i] = le32_to_cpu(es->s_hash_seed[i]);  in ext4_hash_info_init()
5138 	sbi->s_def_hash_version = es->s_def_hash_version;  in ext4_hash_info_init()
5140 		i = le32_to_cpu(es->s_flags);  in ext4_hash_info_init()
5146 				es->s_flags |=  in ext4_hash_info_init()
5151 				es->s_flags |=  in ext4_hash_info_init()
5161 	struct ext4_super_block *es = sbi->s_es;  in ext4_block_group_meta_init()  local
5169 	sbi->s_desc_size = le16_to_cpu(es->s_desc_size);  in ext4_block_group_meta_init()
5182 	sbi->s_blocks_per_group = le32_to_cpu(es->s_blocks_per_group);  in ext4_block_group_meta_init()
5183 	sbi->s_inodes_per_group = le32_to_cpu(es->s_inodes_per_group);  in ext4_block_group_meta_init()
5200 	sbi->s_mount_state = le16_to_cpu(es->s_state) & ~EXT4_FC_REPLAY;  in ext4_block_group_meta_init()
5209 	struct ext4_super_block *es = NULL;  in __ext4_fill_super()  local
5231 	es = sbi->s_es;  in __ext4_fill_super()
5232 	sbi->s_kbytes_written = le64_to_cpu(es->s_kbytes_written);  in __ext4_fill_super()
5234 	err = ext4_init_metadata_csum(sb, es);  in __ext4_fill_super()
5238 	ext4_set_def_opts(sb, es);  in __ext4_fill_super()
5240 	sbi->s_resuid = make_kuid(&init_user_ns, le16_to_cpu(es->s_def_resuid));  in __ext4_fill_super()
5241 	sbi->s_resgid = make_kgid(&init_user_ns, le16_to_cpu(es->s_def_resgid));  in __ext4_fill_super()
5252 	err = ext4_inode_info_init(sb, es);  in __ext4_fill_super()
5269 	err = ext4_encoding_init(sb, es);  in __ext4_fill_super()
5283 	err = ext4_check_feature_compatibility(sb, es, silent);  in __ext4_fill_super()
5297 	err = ext4_check_geometry(sb, es);  in __ext4_fill_super()
5305 	err = ext4_group_desc_init(sb, es, logical_sb_block, &first_not_zeroed);  in __ext4_fill_super()
5349 	memcpy(&sb->s_uuid, es->s_uuid, sizeof(es->s_uuid));  in __ext4_fill_super()
5358 	needs_recovery = (es->s_last_orphan != 0 ||  in __ext4_fill_super()
5363 		err = ext4_multi_mount_protect(sb, le64_to_cpu(es->s_mmp_block));  in __ext4_fill_super()
5374 		err = ext4_load_and_init_journal(sb, es, ctx);  in __ext4_fill_super()
5439 	sbi->s_overhead = le32_to_cpu(es->s_overhead_clusters);  in __ext4_fill_super()
5441 	if (sbi->s_overhead > ext4_blocks_count(es))  in __ext4_fill_super()
5494 	err = ext4_setup_super(sb, es, sb_rdonly(sb));  in __ext4_fill_super()
5582 	ext4_orphan_cleanup(sb, es);  in __ext4_fill_super()
5594 		err = ext4_mark_recovery_complete(sb, es);  in __ext4_fill_super()
5603 	if (es->s_error_count)  in __ext4_fill_super()
5854 	struct ext4_super_block *es;  in ext4_get_journal_blkdev()  local
5889 	es = (struct ext4_super_block *) (bh->b_data + offset);  in ext4_get_journal_blkdev()
5890 	if ((le16_to_cpu(es->s_magic) != EXT4_SUPER_MAGIC) ||  in ext4_get_journal_blkdev()
5891 	    !(le32_to_cpu(es->s_feature_incompat) &  in ext4_get_journal_blkdev()
5898 	if ((le32_to_cpu(es->s_feature_ro_compat) &  in ext4_get_journal_blkdev()
5900 	    es->s_checksum != ext4_superblock_csum(sb, es)) {  in ext4_get_journal_blkdev()
5906 	if (memcmp(EXT4_SB(sb)->s_es->s_journal_uuid, es->s_uuid, 16)) {  in ext4_get_journal_blkdev()
5913 	*j_len = ext4_blocks_count(es);  in ext4_get_journal_blkdev()
5964 			     struct ext4_super_block *es,  in ext4_load_journal()  argument
5968 	unsigned int journal_inum = le32_to_cpu(es->s_journal_inum);  in ext4_load_journal()
5978 	    journal_devnum != le32_to_cpu(es->s_journal_dev)) {  in ext4_load_journal()
5983 		journal_dev = new_decode_dev(le32_to_cpu(es->s_journal_dev));  in ext4_load_journal()
6043 			memcpy(save, ((char *) es) +  in ext4_load_journal()
6046 		if (save && memcmp(((char *) es) + EXT4_S_ERR_START,  in ext4_load_journal()
6048 			memcpy(((char *) es) + EXT4_S_ERR_START,  in ext4_load_journal()
6053 		orig_state = es->s_state;  in ext4_load_journal()
6054 		es->s_state |= cpu_to_le16(EXT4_SB(sb)->s_mount_state &  in ext4_load_journal()
6056 		if (orig_state != es->s_state)  in ext4_load_journal()
6072 	err = ext4_clear_journal_err(sb, es);  in ext4_load_journal()
6080 	    journal_devnum != le32_to_cpu(es->s_journal_dev)) {  in ext4_load_journal()
6081 		es->s_journal_dev = cpu_to_le32(journal_devnum);  in ext4_load_journal()
6085 	    journal_inum != le32_to_cpu(es->s_journal_inum)) {  in ext4_load_journal()
6086 		es->s_journal_inum = cpu_to_le32(journal_inum);  in ext4_load_journal()
6101 	struct ext4_super_block *es = sbi->s_es;  in ext4_update_super()  local
6116 		ext4_update_tstamp(es, s_wtime);  in ext4_update_super()
6117 	es->s_kbytes_written =  in ext4_update_super()
6122 		ext4_free_blocks_count_set(es,  in ext4_update_super()
6126 		es->s_free_inodes_count =  in ext4_update_super()
6132 		es->s_state |= cpu_to_le16(EXT4_ERROR_FS);  in ext4_update_super()
6133 		if (!es->s_first_error_time && !es->s_first_error_time_hi) {  in ext4_update_super()
6134 			__ext4_update_tstamp(&es->s_first_error_time,  in ext4_update_super()
6135 					     &es->s_first_error_time_hi,  in ext4_update_super()
6137 			strncpy(es->s_first_error_func, sbi->s_first_error_func,  in ext4_update_super()
6138 				sizeof(es->s_first_error_func));  in ext4_update_super()
6139 			es->s_first_error_line =  in ext4_update_super()
6141 			es->s_first_error_ino =  in ext4_update_super()
6143 			es->s_first_error_block =  in ext4_update_super()
6145 			es->s_first_error_errcode =  in ext4_update_super()
6148 		__ext4_update_tstamp(&es->s_last_error_time,  in ext4_update_super()
6149 				     &es->s_last_error_time_hi,  in ext4_update_super()
6151 		strncpy(es->s_last_error_func, sbi->s_last_error_func,  in ext4_update_super()
6152 			sizeof(es->s_last_error_func));  in ext4_update_super()
6153 		es->s_last_error_line = cpu_to_le32(sbi->s_last_error_line);  in ext4_update_super()
6154 		es->s_last_error_ino = cpu_to_le32(sbi->s_last_error_ino);  in ext4_update_super()
6155 		es->s_last_error_block = cpu_to_le64(sbi->s_last_error_block);  in ext4_update_super()
6156 		es->s_last_error_errcode =  in ext4_update_super()
6162 		if (!es->s_error_count)  in ext4_update_super()
6164 		le32_add_cpu(&es->s_error_count, sbi->s_add_error_count);  in ext4_update_super()
6228 				       struct ext4_super_block *es)  in ext4_mark_recovery_complete()  argument
6268 				   struct ext4_super_block *es)  in ext4_clear_journal_err()  argument
6295 		es->s_state |= cpu_to_le16(EXT4_ERROR_FS);  in ext4_clear_journal_err()
6439 	struct ext4_super_block *es;  in __ext4_remount()  local
6528 	es = sbi->s_es;  in __ext4_remount()
6563 			if (!(es->s_state & cpu_to_le16(EXT4_VALID_FS)) &&  in __ext4_remount()
6565 				es->s_state = cpu_to_le16(sbi->s_mount_state);  in __ext4_remount()
6572 				ext4_mark_recovery_complete(sb, es);  in __ext4_remount()
6604 			if (es->s_last_orphan || !ext4_orphan_file_empty(sb)) {  in __ext4_remount()
6620 				err = ext4_clear_journal_err(sb, es);  in __ext4_remount()
6624 			sbi->s_mount_state = (le16_to_cpu(es->s_state) &  in __ext4_remount()
6627 			err = ext4_setup_super(sb, es, 0);  in __ext4_remount()
6634 						le64_to_cpu(es->s_mmp_block));  in __ext4_remount()
6797 	struct ext4_super_block *es = sbi->s_es;  in ext4_statfs()  local
6807 	buf->f_blocks = ext4_blocks_count(es) - EXT4_C2B(sbi, overhead);  in ext4_statfs()
6813 			(ext4_r_blocks_count(es) + resv_blocks);  in ext4_statfs()
6814 	if (buf->f_bfree < (ext4_r_blocks_count(es) + resv_blocks))  in ext4_statfs()
6816 	buf->f_files = le32_to_cpu(es->s_inodes_count);  in ext4_statfs()
6819 	buf->f_fsid = uuid_to_fsid(es->s_uuid);  in ext4_statfs()