54 	struct ext2_sb_info *sbi = EXT2_SB(sb);  in ext2_error()  local
55 	struct ext2_super_block *es = sbi->s_es;  in ext2_error()
58 		spin_lock(&sbi->s_lock);  in ext2_error()
59 		sbi->s_mount_state |= EXT2_ERROR_FS;  in ext2_error()
61 		spin_unlock(&sbi->s_lock);  in ext2_error()
148 	struct ext2_sb_info *sbi = EXT2_SB(sb);  in ext2_put_super()  local
152 	ext2_xattr_destroy_cache(sbi->s_ea_block_cache);  in ext2_put_super()
153 	sbi->s_ea_block_cache = NULL;  in ext2_put_super()
156 		struct ext2_super_block *es = sbi->s_es;  in ext2_put_super()
158 		spin_lock(&sbi->s_lock);  in ext2_put_super()
159 		es->s_state = cpu_to_le16(sbi->s_mount_state);  in ext2_put_super()
160 		spin_unlock(&sbi->s_lock);  in ext2_put_super()
163 	db_count = sbi->s_gdb_count;  in ext2_put_super()
165 		brelse(sbi->s_group_desc[i]);  in ext2_put_super()
166 	kvfree(sbi->s_group_desc);  in ext2_put_super()
167 	kfree(sbi->s_debts);  in ext2_put_super()
168 	percpu_counter_destroy(&sbi->s_freeblocks_counter);  in ext2_put_super()
169 	percpu_counter_destroy(&sbi->s_freeinodes_counter);  in ext2_put_super()
170 	percpu_counter_destroy(&sbi->s_dirs_counter);  in ext2_put_super()
171 	brelse (sbi->s_sbh);  in ext2_put_super()
173 	kfree(sbi->s_blockgroup_lock);  in ext2_put_super()
174 	fs_put_dax(sbi->s_daxdev, NULL);  in ext2_put_super()
175 	kfree(sbi);  in ext2_put_super()
238 	struct ext2_sb_info *sbi = EXT2_SB(sb);  in ext2_show_options()  local
239 	struct ext2_super_block *es = sbi->s_es;  in ext2_show_options()
242 	spin_lock(&sbi->s_lock);  in ext2_show_options()
245 	if (sbi->s_sb_block != 1)  in ext2_show_options()
246 		seq_printf(seq, ",sb=%lu", sbi->s_sb_block);  in ext2_show_options()
253 	if (!uid_eq(sbi->s_resuid, make_kuid(&init_user_ns, EXT2_DEF_RESUID)) ||  in ext2_show_options()
256 				from_kuid_munged(&init_user_ns, sbi->s_resuid));  in ext2_show_options()
258 	if (!gid_eq(sbi->s_resgid, make_kgid(&init_user_ns, EXT2_DEF_RESGID)) ||  in ext2_show_options()
261 				from_kgid_munged(&init_user_ns, sbi->s_resgid));  in ext2_show_options()
313 	spin_unlock(&sbi->s_lock);  in ext2_show_options()
636 	struct ext2_sb_info *sbi = EXT2_SB(sb);  in ext2_setup_super()  local
646 	if (!(sbi->s_mount_state & EXT2_VALID_FS))  in ext2_setup_super()
650 	else if ((sbi->s_mount_state & EXT2_ERROR_FS))  in ext2_setup_super()
674 			sbi->s_groups_count,  in ext2_setup_super()
677 			sbi->s_mount_opt);  in ext2_setup_super()
684 	struct ext2_sb_info *sbi = EXT2_SB(sb);  in ext2_check_descriptors()  local
688 	for (i = 0; i < sbi->s_groups_count; i++) {  in ext2_check_descriptors()
712 		    le32_to_cpu(gdp->bg_inode_table) + sbi->s_itb_per_group - 1 >  in ext2_check_descriptors()
791 	struct ext2_sb_info *sbi = EXT2_SB(sb);  in descriptor_loc()  local
794 	first_meta_bg = le32_to_cpu(sbi->s_es->s_first_meta_bg);  in descriptor_loc()
799 	bg = sbi->s_desc_per_block * nr;  in descriptor_loc()
807 	struct ext2_sb_info * sbi;  in ext2_fill_super()  local
823 	sbi = kzalloc(sizeof(*sbi), GFP_KERNEL);  in ext2_fill_super()
824 	if (!sbi)  in ext2_fill_super()
827 	sbi->s_blockgroup_lock =  in ext2_fill_super()
829 	if (!sbi->s_blockgroup_lock) {  in ext2_fill_super()
830 		kfree(sbi);  in ext2_fill_super()
833 	sb->s_fs_info = sbi;  in ext2_fill_super()
834 	sbi->s_sb_block = sb_block;  in ext2_fill_super()
835 	sbi->s_daxdev = fs_dax_get_by_bdev(sb->s_bdev, &sbi->s_dax_part_off,  in ext2_fill_super()
838 	spin_lock_init(&sbi->s_lock);  in ext2_fill_super()
874 	sbi->s_es = es;  in ext2_fill_super()
898 	if (le16_to_cpu(sbi->s_es->s_errors) == EXT2_ERRORS_PANIC)  in ext2_fill_super()
900 	else if (le16_to_cpu(sbi->s_es->s_errors) == EXT2_ERRORS_CONTINUE)  in ext2_fill_super()
913 	sbi->s_mount_opt = opts.s_mount_opt;  in ext2_fill_super()
914 	sbi->s_resuid = opts.s_resuid;  in ext2_fill_super()
915 	sbi->s_resgid = opts.s_resgid;  in ext2_fill_super()
954 	blocksize = BLOCK_SIZE << le32_to_cpu(sbi->s_es->s_log_block_size);  in ext2_fill_super()
957 		if (!sbi->s_daxdev) {  in ext2_fill_super()
960 			clear_opt(sbi->s_mount_opt, DAX);  in ext2_fill_super()
963 			clear_opt(sbi->s_mount_opt, DAX);  in ext2_fill_super()
986 		sbi->s_es = es;  in ext2_fill_super()
999 		sbi->s_inode_size = EXT2_GOOD_OLD_INODE_SIZE;  in ext2_fill_super()
1000 		sbi->s_first_ino = EXT2_GOOD_OLD_FIRST_INO;  in ext2_fill_super()
1002 		sbi->s_inode_size = le16_to_cpu(es->s_inode_size);  in ext2_fill_super()
1003 		sbi->s_first_ino = le32_to_cpu(es->s_first_ino);  in ext2_fill_super()
1004 		if ((sbi->s_inode_size < EXT2_GOOD_OLD_INODE_SIZE) ||  in ext2_fill_super()
1005 		    !is_power_of_2(sbi->s_inode_size) ||  in ext2_fill_super()
1006 		    (sbi->s_inode_size > blocksize)) {  in ext2_fill_super()
1009 				sbi->s_inode_size);  in ext2_fill_super()
1014 	sbi->s_blocks_per_group = le32_to_cpu(es->s_blocks_per_group);  in ext2_fill_super()
1015 	sbi->s_inodes_per_group = le32_to_cpu(es->s_inodes_per_group);  in ext2_fill_super()
1017 	sbi->s_inodes_per_block = sb->s_blocksize / EXT2_INODE_SIZE(sb);  in ext2_fill_super()
1018 	if (sbi->s_inodes_per_block == 0 || sbi->s_inodes_per_group == 0)  in ext2_fill_super()
1020 	sbi->s_itb_per_group = sbi->s_inodes_per_group /  in ext2_fill_super()
1021 					sbi->s_inodes_per_block;  in ext2_fill_super()
1022 	sbi->s_desc_per_block = sb->s_blocksize /  in ext2_fill_super()
1024 	sbi->s_sbh = bh;  in ext2_fill_super()
1025 	sbi->s_mount_state = le16_to_cpu(es->s_state);  in ext2_fill_super()
1026 	sbi->s_addr_per_block_bits =  in ext2_fill_super()
1028 	sbi->s_desc_per_block_bits =  in ext2_fill_super()
1047 	if (sbi->s_blocks_per_group > sb->s_blocksize * 8) {  in ext2_fill_super()
1050 			sbi->s_blocks_per_group);  in ext2_fill_super()
1054 	if (sbi->s_blocks_per_group <= sbi->s_itb_per_group + 3) {  in ext2_fill_super()
1057 			sbi->s_blocks_per_group, sbi->s_inodes_per_group + 3);  in ext2_fill_super()
1060 	if (sbi->s_inodes_per_group < sbi->s_inodes_per_block ||  in ext2_fill_super()
1061 	    sbi->s_inodes_per_group > sb->s_blocksize * 8) {  in ext2_fill_super()
1064 			sbi->s_inodes_per_group);  in ext2_fill_super()
1075 	sbi->s_groups_count = ((le32_to_cpu(es->s_blocks_count) -  in ext2_fill_super()
1078 	if ((u64)sbi->s_groups_count * sbi->s_inodes_per_group !=  in ext2_fill_super()
1082 			 (u64)sbi->s_groups_count * sbi->s_inodes_per_group);  in ext2_fill_super()
1085 	db_count = (sbi->s_groups_count + EXT2_DESC_PER_BLOCK(sb) - 1) /  in ext2_fill_super()
1087 	sbi->s_group_desc = kvmalloc_array(db_count,  in ext2_fill_super()
1090 	if (sbi->s_group_desc == NULL) {  in ext2_fill_super()
1095 	bgl_lock_init(sbi->s_blockgroup_lock);  in ext2_fill_super()
1096 	sbi->s_debts = kcalloc(sbi->s_groups_count, sizeof(*sbi->s_debts), GFP_KERNEL);  in ext2_fill_super()
1097 	if (!sbi->s_debts) {  in ext2_fill_super()
1104 		sbi->s_group_desc[i] = sb_bread(sb, block);  in ext2_fill_super()
1105 		if (!sbi->s_group_desc[i]) {  in ext2_fill_super()
1107 				brelse (sbi->s_group_desc[j]);  in ext2_fill_super()
1117 	sbi->s_gdb_count = db_count;  in ext2_fill_super()
1118 	get_random_bytes(&sbi->s_next_generation, sizeof(u32));  in ext2_fill_super()
1119 	spin_lock_init(&sbi->s_next_gen_lock);  in ext2_fill_super()
1122 	spin_lock_init(&sbi->s_rsv_window_lock);  in ext2_fill_super()
1123 	sbi->s_rsv_window_root = RB_ROOT;  in ext2_fill_super()
1130 	sbi->s_rsv_window_head.rsv_start = EXT2_RESERVE_WINDOW_NOT_ALLOCATED;  in ext2_fill_super()
1131 	sbi->s_rsv_window_head.rsv_end = EXT2_RESERVE_WINDOW_NOT_ALLOCATED;  in ext2_fill_super()
1132 	sbi->s_rsv_window_head.rsv_alloc_hit = 0;  in ext2_fill_super()
1133 	sbi->s_rsv_window_head.rsv_goal_size = 0;  in ext2_fill_super()
1134 	ext2_rsv_window_add(sb, &sbi->s_rsv_window_head);  in ext2_fill_super()
1136 	err = percpu_counter_init(&sbi->s_freeblocks_counter,  in ext2_fill_super()
1139 		err = percpu_counter_init(&sbi->s_freeinodes_counter,  in ext2_fill_super()
1143 		err = percpu_counter_init(&sbi->s_dirs_counter,  in ext2_fill_super()
1153 	sbi->s_ea_block_cache = ext2_xattr_create_cache();  in ext2_fill_super()
1154 	if (!sbi->s_ea_block_cache) {  in ext2_fill_super()
1205 	ext2_xattr_destroy_cache(sbi->s_ea_block_cache);  in ext2_fill_super()
1206 	percpu_counter_destroy(&sbi->s_freeblocks_counter);  in ext2_fill_super()
1207 	percpu_counter_destroy(&sbi->s_freeinodes_counter);  in ext2_fill_super()
1208 	percpu_counter_destroy(&sbi->s_dirs_counter);  in ext2_fill_super()
1211 		brelse(sbi->s_group_desc[i]);  in ext2_fill_super()
1213 	kvfree(sbi->s_group_desc);  in ext2_fill_super()
1214 	kfree(sbi->s_debts);  in ext2_fill_super()
1218 	fs_put_dax(sbi->s_daxdev, NULL);  in ext2_fill_super()
1220 	kfree(sbi->s_blockgroup_lock);  in ext2_fill_super()
1221 	kfree(sbi);  in ext2_fill_super()
1272 	struct ext2_sb_info *sbi = EXT2_SB(sb);  in ext2_sync_fs()  local
1281 	spin_lock(&sbi->s_lock);  in ext2_sync_fs()
1286 	spin_unlock(&sbi->s_lock);  in ext2_sync_fs()
1293 	struct ext2_sb_info *sbi = EXT2_SB(sb);  in ext2_freeze()  local
1305 	spin_lock(&sbi->s_lock);  in ext2_freeze()
1306 	sbi->s_es->s_state = cpu_to_le16(sbi->s_mount_state);  in ext2_freeze()
1307 	spin_unlock(&sbi->s_lock);  in ext2_freeze()
1308 	ext2_sync_super(sb, sbi->s_es, 1);  in ext2_freeze()
1329 	struct ext2_sb_info * sbi = EXT2_SB(sb);  in ext2_remount()  local
1336 	spin_lock(&sbi->s_lock);  in ext2_remount()
1337 	new_opts.s_mount_opt = sbi->s_mount_opt;  in ext2_remount()
1338 	new_opts.s_resuid = sbi->s_resuid;  in ext2_remount()
1339 	new_opts.s_resgid = sbi->s_resgid;  in ext2_remount()
1340 	spin_unlock(&sbi->s_lock);  in ext2_remount()
1345 	spin_lock(&sbi->s_lock);  in ext2_remount()
1346 	es = sbi->s_es;  in ext2_remount()
1347 	if ((sbi->s_mount_opt ^ new_opts.s_mount_opt) & EXT2_MOUNT_DAX) {  in ext2_remount()
1356 		    !(sbi->s_mount_state & EXT2_VALID_FS))  in ext2_remount()
1363 		es->s_state = cpu_to_le16(sbi->s_mount_state);  in ext2_remount()
1365 		spin_unlock(&sbi->s_lock);  in ext2_remount()
1376 			spin_unlock(&sbi->s_lock);  in ext2_remount()
1388 		sbi->s_mount_state = le16_to_cpu(es->s_state);  in ext2_remount()
1391 		spin_unlock(&sbi->s_lock);  in ext2_remount()
1398 	spin_lock(&sbi->s_lock);  in ext2_remount()
1400 	sbi->s_mount_opt = new_opts.s_mount_opt;  in ext2_remount()
1401 	sbi->s_resuid = new_opts.s_resuid;  in ext2_remount()
1402 	sbi->s_resgid = new_opts.s_resgid;  in ext2_remount()
1405 	spin_unlock(&sbi->s_lock);  in ext2_remount()
1413 	struct ext2_sb_info *sbi = EXT2_SB(sb);  in ext2_statfs()  local
1414 	struct ext2_super_block *es = sbi->s_es;  in ext2_statfs()
1416 	spin_lock(&sbi->s_lock);  in ext2_statfs()
1419 		sbi->s_overhead_last = 0;  in ext2_statfs()
1420 	else if (sbi->s_blocks_last != le32_to_cpu(es->s_blocks_count)) {  in ext2_statfs()
1441 		for (i = 0; i < sbi->s_groups_count; i++)  in ext2_statfs()
1449 		overhead += (sbi->s_groups_count *  in ext2_statfs()
1450 			     (2 + sbi->s_itb_per_group));  in ext2_statfs()
1451 		sbi->s_overhead_last = overhead;  in ext2_statfs()
1453 		sbi->s_blocks_last = le32_to_cpu(es->s_blocks_count);  in ext2_statfs()
1458 	buf->f_blocks = le32_to_cpu(es->s_blocks_count) - sbi->s_overhead_last;  in ext2_statfs()
1469 	spin_unlock(&sbi->s_lock);  in ext2_statfs()