66 					struct ext4_super_block *es);
68 				   struct ext4_super_block *es);
111 				 struct ext4_super_block *es)  in ext4_verify_csum_type()  argument
116 	return es->s_checksum_type == EXT4_CRC32C_CHKSUM;  in ext4_verify_csum_type()
120 				   struct ext4_super_block *es)  in ext4_superblock_csum()  argument
126 	csum = ext4_chksum(sbi, ~0, (char *)es, offset);  in ext4_superblock_csum()
132 				       struct ext4_super_block *es)  in ext4_superblock_csum_verify()  argument
137 	return es->s_checksum == ext4_superblock_csum(sb, es);  in ext4_superblock_csum_verify()
142 	struct ext4_super_block *es = EXT4_SB(sb)->s_es;  in ext4_superblock_csum_set()  local
147 	es->s_checksum = ext4_superblock_csum(sb, es);  in ext4_superblock_csum_set()
286 	struct ext4_super_block *es = EXT4_SB(sb)->s_es;  in __save_error_info()  local
291 	es->s_state |= cpu_to_le16(EXT4_ERROR_FS);  in __save_error_info()
292 	es->s_last_error_time = cpu_to_le32(get_seconds());  in __save_error_info()
293 	strncpy(es->s_last_error_func, func, sizeof(es->s_last_error_func));  in __save_error_info()
294 	es->s_last_error_line = cpu_to_le32(line);  in __save_error_info()
295 	if (!es->s_first_error_time) {  in __save_error_info()
296 		es->s_first_error_time = es->s_last_error_time;  in __save_error_info()
297 		strncpy(es->s_first_error_func, func,  in __save_error_info()
298 			sizeof(es->s_first_error_func));  in __save_error_info()
299 		es->s_first_error_line = cpu_to_le32(line);  in __save_error_info()
300 		es->s_first_error_ino = es->s_last_error_ino;  in __save_error_info()
301 		es->s_first_error_block = es->s_last_error_block;  in __save_error_info()
307 	if (!es->s_error_count)  in __save_error_info()
309 	le32_add_cpu(&es->s_error_count, 1);  in __save_error_info()
429 	struct ext4_super_block *es = EXT4_SB(inode->i_sb)->s_es;  in __ext4_error_inode()  local
431 	es->s_last_error_ino = cpu_to_le32(inode->i_ino);  in __ext4_error_inode()
432 	es->s_last_error_block = cpu_to_le64(block);  in __ext4_error_inode()
459 	struct ext4_super_block *es;  in __ext4_error_file()  local
463 	es = EXT4_SB(inode->i_sb)->s_es;  in __ext4_error_file()
464 	es->s_last_error_ino = cpu_to_le32(inode->i_ino);  in __ext4_error_file()
664 	struct ext4_super_block *es = EXT4_SB(sb)->s_es;  in __ext4_grp_locked_error()  local
666 	es->s_last_error_ino = cpu_to_le32(ino);  in __ext4_grp_locked_error()
667 	es->s_last_error_block = cpu_to_le64(block);  in __ext4_grp_locked_error()
709 	struct ext4_super_block *es = EXT4_SB(sb)->s_es;  in ext4_update_dynamic_rev()  local
711 	if (le32_to_cpu(es->s_rev_level) > EXT4_GOOD_OLD_REV)  in ext4_update_dynamic_rev()
719 	es->s_first_ino = cpu_to_le32(EXT4_GOOD_OLD_FIRST_INO);  in ext4_update_dynamic_rev()
720 	es->s_inode_size = cpu_to_le16(EXT4_GOOD_OLD_INODE_SIZE);  in ext4_update_dynamic_rev()
721 	es->s_rev_level = cpu_to_le32(EXT4_DYNAMIC_REV);  in ext4_update_dynamic_rev()
795 	struct ext4_super_block *es = sbi->s_es;  in ext4_put_super()  local
821 		es->s_state = cpu_to_le16(sbi->s_mount_state);  in ext4_put_super()
1818 	struct ext4_super_block *es = sbi->s_es;  in _ext4_show_options()  local
1844 	    le16_to_cpu(es->s_def_resuid) != EXT4_DEF_RESUID)  in _ext4_show_options()
1848 	    le16_to_cpu(es->s_def_resgid) != EXT4_DEF_RESGID)  in _ext4_show_options()
1851 	def_errors = nodefs ? -1 : le16_to_cpu(es->s_errors);  in _ext4_show_options()
1907 static int ext4_setup_super(struct super_block *sb, struct ext4_super_block *es,  in ext4_setup_super()  argument
1913 	if (le32_to_cpu(es->s_rev_level) > EXT4_MAX_SUPP_REV) {  in ext4_setup_super()
1927 	else if ((__s16) le16_to_cpu(es->s_max_mnt_count) > 0 &&  in ext4_setup_super()
1928 		 le16_to_cpu(es->s_mnt_count) >=  in ext4_setup_super()
1929 		 (unsigned short) (__s16) le16_to_cpu(es->s_max_mnt_count))  in ext4_setup_super()
1933 	else if (le32_to_cpu(es->s_checkinterval) &&  in ext4_setup_super()
1934 		(le32_to_cpu(es->s_lastcheck) +  in ext4_setup_super()
1935 			le32_to_cpu(es->s_checkinterval) <= get_seconds()))  in ext4_setup_super()
1940 		es->s_state &= cpu_to_le16(~EXT4_VALID_FS);  in ext4_setup_super()
1941 	if (!(__s16) le16_to_cpu(es->s_max_mnt_count))  in ext4_setup_super()
1942 		es->s_max_mnt_count = cpu_to_le16(EXT4_DFL_MAX_MNT_COUNT);  in ext4_setup_super()
1943 	le16_add_cpu(&es->s_mnt_count, 1);  in ext4_setup_super()
1944 	es->s_mtime = cpu_to_le32(get_seconds());  in ext4_setup_super()
2185 				struct ext4_super_block *es)  in ext4_orphan_cleanup()  argument
2192 	if (!es->s_last_orphan) {  in ext4_orphan_cleanup()
2212 		if (es->s_last_orphan && !(s_flags & MS_RDONLY)) {  in ext4_orphan_cleanup()
2215 			es->s_last_orphan = 0;  in ext4_orphan_cleanup()
2240 	while (es->s_last_orphan) {  in ext4_orphan_cleanup()
2243 		inode = ext4_orphan_get(sb, le32_to_cpu(es->s_last_orphan));  in ext4_orphan_cleanup()
2245 			es->s_last_orphan = 0;  in ext4_orphan_cleanup()
2542 	struct ext4_super_block *es;  in print_daily_error_info()  local
2545 	es = sbi->s_es;  in print_daily_error_info()
2547 	if (es->s_error_count)  in print_daily_error_info()
2550 			 le32_to_cpu(es->s_error_count));  in print_daily_error_info()
2551 	if (es->s_first_error_time) {  in print_daily_error_info()
2553 		       sb->s_id, le32_to_cpu(es->s_first_error_time),  in print_daily_error_info()
2554 		       (int) sizeof(es->s_first_error_func),  in print_daily_error_info()
2555 		       es->s_first_error_func,  in print_daily_error_info()
2556 		       le32_to_cpu(es->s_first_error_line));  in print_daily_error_info()
2557 		if (es->s_first_error_ino)  in print_daily_error_info()
2559 			       le32_to_cpu(es->s_first_error_ino));  in print_daily_error_info()
2560 		if (es->s_first_error_block)  in print_daily_error_info()
2562 			       le64_to_cpu(es->s_first_error_block));  in print_daily_error_info()
2565 	if (es->s_last_error_time) {  in print_daily_error_info()
2567 		       sb->s_id, le32_to_cpu(es->s_last_error_time),  in print_daily_error_info()
2568 		       (int) sizeof(es->s_last_error_func),  in print_daily_error_info()
2569 		       es->s_last_error_func,  in print_daily_error_info()
2570 		       le32_to_cpu(es->s_last_error_line));  in print_daily_error_info()
2571 		if (es->s_last_error_ino)  in print_daily_error_info()
2573 			       le32_to_cpu(es->s_last_error_ino));  in print_daily_error_info()
2574 		if (es->s_last_error_block)  in print_daily_error_info()
2576 			       le64_to_cpu(es->s_last_error_block));  in print_daily_error_info()
3031 	struct ext4_super_block *es = sbi->s_es;  in ext4_calculate_overhead()  local
3048 	overhead = EXT4_B2C(sbi, le32_to_cpu(es->s_first_data_block));  in ext4_calculate_overhead()
3106 	struct ext4_super_block *es = NULL;  in ext4_fill_super()  local
3174 	es = (struct ext4_super_block *) (bh->b_data + offset);  in ext4_fill_super()
3175 	sbi->s_es = es;  in ext4_fill_super()
3176 	sb->s_magic = le16_to_cpu(es->s_magic);  in ext4_fill_super()
3179 	sbi->s_kbytes_written = le64_to_cpu(es->s_kbytes_written);  in ext4_fill_super()
3188 	if (!ext4_verify_csum_type(sb, es)) {  in ext4_fill_super()
3207 	if (!ext4_superblock_csum_verify(sb, es)) {  in ext4_fill_super()
3217 		sbi->s_csum_seed = le32_to_cpu(es->s_checksum_seed);  in ext4_fill_super()
3219 		sbi->s_csum_seed = ext4_chksum(sbi, ~0, es->s_uuid,  in ext4_fill_super()
3220 					       sizeof(es->s_uuid));  in ext4_fill_super()
3223 	def_mount_opts = le32_to_cpu(es->s_default_mount_opts);  in ext4_fill_super()
3258 	sbi->s_resuid = make_kuid(&init_user_ns, le16_to_cpu(es->s_def_resuid));  in ext4_fill_super()
3259 	sbi->s_resgid = make_kgid(&init_user_ns, le16_to_cpu(es->s_def_resgid));  in ext4_fill_super()
3320 	if (le32_to_cpu(es->s_rev_level) == EXT4_GOOD_OLD_REV &&  in ext4_fill_super()
3328 	if (es->s_creator_os == cpu_to_le32(EXT4_OS_HURD)) {  in ext4_fill_super()
3367 	blocksize = BLOCK_SIZE << le32_to_cpu(es->s_log_block_size);  in ext4_fill_super()
3388 	if (ext4_has_feature_encrypt(sb) && es->s_encryption_level) {  in ext4_fill_super()
3390 			 es->s_encryption_level);  in ext4_fill_super()
3411 		es = (struct ext4_super_block *)(bh->b_data + offset);  in ext4_fill_super()
3412 		sbi->s_es = es;  in ext4_fill_super()
3413 		if (es->s_magic != cpu_to_le16(EXT4_SUPER_MAGIC)) {  in ext4_fill_super()
3425 	if (le32_to_cpu(es->s_rev_level) == EXT4_GOOD_OLD_REV) {  in ext4_fill_super()
3429 		sbi->s_inode_size = le16_to_cpu(es->s_inode_size);  in ext4_fill_super()
3430 		sbi->s_first_ino = le32_to_cpu(es->s_first_ino);  in ext4_fill_super()
3443 	sbi->s_desc_size = le16_to_cpu(es->s_desc_size);  in ext4_fill_super()
3456 	sbi->s_blocks_per_group = le32_to_cpu(es->s_blocks_per_group);  in ext4_fill_super()
3457 	sbi->s_inodes_per_group = le32_to_cpu(es->s_inodes_per_group);  in ext4_fill_super()
3468 	sbi->s_mount_state = le16_to_cpu(es->s_state);  in ext4_fill_super()
3473 		sbi->s_hash_seed[i] = le32_to_cpu(es->s_hash_seed[i]);  in ext4_fill_super()
3474 	sbi->s_def_hash_version = es->s_def_hash_version;  in ext4_fill_super()
3476 		i = le32_to_cpu(es->s_flags);  in ext4_fill_super()
3482 				es->s_flags |=  in ext4_fill_super()
3487 				es->s_flags |=  in ext4_fill_super()
3494 	clustersize = BLOCK_SIZE << le32_to_cpu(es->s_log_cluster_size);  in ext4_fill_super()
3503 		sbi->s_cluster_bits = le32_to_cpu(es->s_log_cluster_size) -  in ext4_fill_super()
3504 			le32_to_cpu(es->s_log_block_size);  in ext4_fill_super()
3506 			le32_to_cpu(es->s_clusters_per_group);  in ext4_fill_super()
3555 					ext4_blocks_count(es));  in ext4_fill_super()
3569 	if (blocks_count && ext4_blocks_count(es) > blocks_count) {  in ext4_fill_super()
3572 		       ext4_blocks_count(es), blocks_count);  in ext4_fill_super()
3580 	if (le32_to_cpu(es->s_first_data_block) >= ext4_blocks_count(es)) {  in ext4_fill_super()
3583 			 le32_to_cpu(es->s_first_data_block),  in ext4_fill_super()
3584 			 ext4_blocks_count(es));  in ext4_fill_super()
3587 	blocks_count = (ext4_blocks_count(es) -  in ext4_fill_super()
3588 			le32_to_cpu(es->s_first_data_block) +  in ext4_fill_super()
3595 		       ext4_blocks_count(es),  in ext4_fill_super()
3596 		       le32_to_cpu(es->s_first_data_block),  in ext4_fill_super()
3660 	memcpy(sb->s_uuid, es->s_uuid, sizeof(es->s_uuid));  in ext4_fill_super()
3667 	needs_recovery = (es->s_last_orphan != 0 ||  in ext4_fill_super()
3671 		if (ext4_multi_mount_protect(sb, le64_to_cpu(es->s_mmp_block)))  in ext4_fill_super()
3679 		if (ext4_load_journal(sb, es, journal_devnum))  in ext4_fill_super()
3787 	if (es->s_overhead_clusters)  in ext4_fill_super()
3788 		sbi->s_overhead = le32_to_cpu(es->s_overhead_clusters);  in ext4_fill_super()
3831 	if (ext4_setup_super(sb, es, sb->s_flags & MS_RDONLY))  in ext4_fill_super()
3840 			    le16_to_cpu(es->s_want_extra_isize))  in ext4_fill_super()
3842 					le16_to_cpu(es->s_want_extra_isize);  in ext4_fill_super()
3844 			    le16_to_cpu(es->s_min_extra_isize))  in ext4_fill_super()
3846 					le16_to_cpu(es->s_min_extra_isize);  in ext4_fill_super()
3923 	ext4_orphan_cleanup(sb, es);  in ext4_fill_super()
3927 		ext4_mark_recovery_complete(sb, es);  in ext4_fill_super()
3952 	if (es->s_error_count)  in ext4_fill_super()
4103 	struct ext4_super_block *es;  in ext4_get_dev_journal()  local
4129 	es = (struct ext4_super_block *) (bh->b_data + offset);  in ext4_get_dev_journal()
4130 	if ((le16_to_cpu(es->s_magic) != EXT4_SUPER_MAGIC) ||  in ext4_get_dev_journal()
4131 	    !(le32_to_cpu(es->s_feature_incompat) &  in ext4_get_dev_journal()
4139 	if ((le32_to_cpu(es->s_feature_ro_compat) &  in ext4_get_dev_journal()
4141 	    es->s_checksum != ext4_superblock_csum(sb, es)) {  in ext4_get_dev_journal()
4148 	if (memcmp(EXT4_SB(sb)->s_es->s_journal_uuid, es->s_uuid, 16)) {  in ext4_get_dev_journal()
4154 	len = ext4_blocks_count(es);  in ext4_get_dev_journal()
4189 			     struct ext4_super_block *es,  in ext4_load_journal()  argument
4193 	unsigned int journal_inum = le32_to_cpu(es->s_journal_inum);  in ext4_load_journal()
4201 	    journal_devnum != le32_to_cpu(es->s_journal_dev)) {  in ext4_load_journal()
4206 		journal_dev = new_decode_dev(le32_to_cpu(es->s_journal_dev));  in ext4_load_journal()
4251 			memcpy(save, ((char *) es) +  in ext4_load_journal()
4255 			memcpy(((char *) es) + EXT4_S_ERR_START,  in ext4_load_journal()
4267 	ext4_clear_journal_err(sb, es);  in ext4_load_journal()
4270 	    journal_devnum != le32_to_cpu(es->s_journal_dev)) {  in ext4_load_journal()
4271 		es->s_journal_dev = cpu_to_le32(journal_devnum);  in ext4_load_journal()
4282 	struct ext4_super_block *es = EXT4_SB(sb)->s_es;  in ext4_commit_super()  local
4313 		es->s_wtime = cpu_to_le32(get_seconds());  in ext4_commit_super()
4315 		es->s_kbytes_written =  in ext4_commit_super()
4320 		es->s_kbytes_written =  in ext4_commit_super()
4323 		ext4_free_blocks_count_set(es,  in ext4_commit_super()
4327 		es->s_free_inodes_count =  in ext4_commit_super()
4356 					struct ext4_super_block *es)  in ext4_mark_recovery_complete()  argument
4384 				   struct ext4_super_block *es)  in ext4_clear_journal_err()  argument
4409 		es->s_state |= cpu_to_le16(EXT4_ERROR_FS);  in ext4_clear_journal_err()
4552 	struct ext4_super_block *es;  in ext4_remount()  local
4637 	es = sbi->s_es;  in ext4_remount()
4672 			if (!(es->s_state & cpu_to_le16(EXT4_VALID_FS)) &&  in ext4_remount()
4674 				es->s_state = cpu_to_le16(sbi->s_mount_state);  in ext4_remount()
4677 				ext4_mark_recovery_complete(sb, es);  in ext4_remount()
4708 			if (es->s_last_orphan) {  in ext4_remount()
4724 				ext4_clear_journal_err(sb, es);  in ext4_remount()
4725 			sbi->s_mount_state = le16_to_cpu(es->s_state);  in ext4_remount()
4726 			if (!ext4_setup_super(sb, es, 0))  in ext4_remount()
4730 						le64_to_cpu(es->s_mmp_block))) {  in ext4_remount()
4798 	struct ext4_super_block *es = sbi->s_es;  in ext4_statfs()  local
4809 	buf->f_blocks = ext4_blocks_count(es) - EXT4_C2B(sbi, overhead);  in ext4_statfs()
4815 			(ext4_r_blocks_count(es) + resv_blocks);  in ext4_statfs()
4816 	if (buf->f_bfree < (ext4_r_blocks_count(es) + resv_blocks))  in ext4_statfs()
4818 	buf->f_files = le32_to_cpu(es->s_inodes_count);  in ext4_statfs()
4821 	fsid = le64_to_cpup((void *)es->s_uuid) ^  in ext4_statfs()
4822 	       le64_to_cpup((void *)es->s_uuid + sizeof(u64));  in ext4_statfs()