52 	struct ext2_sb_info *sbi = EXT2_SB(sb);  in ext2_error()  local
53 	struct ext2_super_block *es = sbi->s_es;  in ext2_error()
56 		spin_lock(&sbi->s_lock);  in ext2_error()
57 		sbi->s_mount_state |= EXT2_ERROR_FS;  in ext2_error()
59 		spin_unlock(&sbi->s_lock);  in ext2_error()
130 	struct ext2_sb_info *sbi = EXT2_SB(sb);  in ext2_put_super()  local
136 		struct ext2_super_block *es = sbi->s_es;  in ext2_put_super()
138 		spin_lock(&sbi->s_lock);  in ext2_put_super()
139 		es->s_state = cpu_to_le16(sbi->s_mount_state);  in ext2_put_super()
140 		spin_unlock(&sbi->s_lock);  in ext2_put_super()
143 	db_count = sbi->s_gdb_count;  in ext2_put_super()
145 		if (sbi->s_group_desc[i])  in ext2_put_super()
146 			brelse (sbi->s_group_desc[i]);  in ext2_put_super()
147 	kfree(sbi->s_group_desc);  in ext2_put_super()
148 	kfree(sbi->s_debts);  in ext2_put_super()
149 	percpu_counter_destroy(&sbi->s_freeblocks_counter);  in ext2_put_super()
150 	percpu_counter_destroy(&sbi->s_freeinodes_counter);  in ext2_put_super()
151 	percpu_counter_destroy(&sbi->s_dirs_counter);  in ext2_put_super()
152 	brelse (sbi->s_sbh);  in ext2_put_super()
154 	kfree(sbi->s_blockgroup_lock);  in ext2_put_super()
155 	kfree(sbi);  in ext2_put_super()
226 	struct ext2_sb_info *sbi = EXT2_SB(sb);  in ext2_show_options()  local
227 	struct ext2_super_block *es = sbi->s_es;  in ext2_show_options()
230 	spin_lock(&sbi->s_lock);  in ext2_show_options()
233 	if (sbi->s_sb_block != 1)  in ext2_show_options()
234 		seq_printf(seq, ",sb=%lu", sbi->s_sb_block);  in ext2_show_options()
241 	if (!uid_eq(sbi->s_resuid, make_kuid(&init_user_ns, EXT2_DEF_RESUID)) ||  in ext2_show_options()
244 				from_kuid_munged(&init_user_ns, sbi->s_resuid));  in ext2_show_options()
246 	if (!gid_eq(sbi->s_resgid, make_kgid(&init_user_ns, EXT2_DEF_RESGID)) ||  in ext2_show_options()
249 				from_kgid_munged(&init_user_ns, sbi->s_resgid));  in ext2_show_options()
290 	if (sbi->s_mount_opt & EXT2_MOUNT_USRQUOTA)  in ext2_show_options()
293 	if (sbi->s_mount_opt & EXT2_MOUNT_GRPQUOTA)  in ext2_show_options()
298 	if (sbi->s_mount_opt & EXT2_MOUNT_XIP)  in ext2_show_options()
300 	if (sbi->s_mount_opt & EXT2_MOUNT_DAX)  in ext2_show_options()
307 	spin_unlock(&sbi->s_lock);  in ext2_show_options()
452 	struct ext2_sb_info *sbi = EXT2_SB(sb);  in parse_options()  local
469 			clear_opt (sbi->s_mount_opt, MINIX_DF);  in parse_options()
472 			set_opt (sbi->s_mount_opt, MINIX_DF);  in parse_options()
475 			set_opt (sbi->s_mount_opt, GRPID);  in parse_options()
478 			clear_opt (sbi->s_mount_opt, GRPID);  in parse_options()
489 			sbi->s_resuid = uid;  in parse_options()
499 			sbi->s_resgid = gid;  in parse_options()
506 			clear_opt (sbi->s_mount_opt, ERRORS_CONT);  in parse_options()
507 			clear_opt (sbi->s_mount_opt, ERRORS_RO);  in parse_options()
508 			set_opt (sbi->s_mount_opt, ERRORS_PANIC);  in parse_options()
511 			clear_opt (sbi->s_mount_opt, ERRORS_CONT);  in parse_options()
512 			clear_opt (sbi->s_mount_opt, ERRORS_PANIC);  in parse_options()
513 			set_opt (sbi->s_mount_opt, ERRORS_RO);  in parse_options()
516 			clear_opt (sbi->s_mount_opt, ERRORS_RO);  in parse_options()
517 			clear_opt (sbi->s_mount_opt, ERRORS_PANIC);  in parse_options()
518 			set_opt (sbi->s_mount_opt, ERRORS_CONT);  in parse_options()
521 			set_opt (sbi->s_mount_opt, NO_UID32);  in parse_options()
524 			clear_opt (sbi->s_mount_opt, CHECK);  in parse_options()
527 			set_opt (sbi->s_mount_opt, DEBUG);  in parse_options()
530 			set_opt (sbi->s_mount_opt, OLDALLOC);  in parse_options()
533 			clear_opt (sbi->s_mount_opt, OLDALLOC);  in parse_options()
536 			set_opt (sbi->s_mount_opt, NOBH);  in parse_options()
540 			set_opt (sbi->s_mount_opt, XATTR_USER);  in parse_options()
543 			clear_opt (sbi->s_mount_opt, XATTR_USER);  in parse_options()
554 			set_opt(sbi->s_mount_opt, POSIX_ACL);  in parse_options()
557 			clear_opt(sbi->s_mount_opt, POSIX_ACL);  in parse_options()
568 			set_opt(sbi->s_mount_opt, XIP);  in parse_options()
574 			set_opt(sbi->s_mount_opt, DAX);  in parse_options()
583 			set_opt(sbi->s_mount_opt, USRQUOTA);  in parse_options()
587 			set_opt(sbi->s_mount_opt, GRPQUOTA);  in parse_options()
599 			set_opt(sbi->s_mount_opt, RESERVATION);  in parse_options()
603 			clear_opt(sbi->s_mount_opt, RESERVATION);  in parse_options()
620 	struct ext2_sb_info *sbi = EXT2_SB(sb);  in ext2_setup_super()  local
630 	if (!(sbi->s_mount_state & EXT2_VALID_FS))  in ext2_setup_super()
634 	else if ((sbi->s_mount_state & EXT2_ERROR_FS))  in ext2_setup_super()
657 			sbi->s_frag_size,  in ext2_setup_super()
658 			sbi->s_groups_count,  in ext2_setup_super()
661 			sbi->s_mount_opt);  in ext2_setup_super()
668 	struct ext2_sb_info *sbi = EXT2_SB(sb);  in ext2_check_descriptors()  local
672 	for (i = 0; i < sbi->s_groups_count; i++) {  in ext2_check_descriptors()
677 		if (i == sbi->s_groups_count - 1)  in ext2_check_descriptors()
678 			last_block = le32_to_cpu(sbi->s_es->s_blocks_count) - 1;  in ext2_check_descriptors()
702 		    le32_to_cpu(gdp->bg_inode_table) + sbi->s_itb_per_group - 1 >  in ext2_check_descriptors()
766 	struct ext2_sb_info *sbi = EXT2_SB(sb);  in descriptor_loc()  local
770 	first_meta_bg = le32_to_cpu(sbi->s_es->s_first_meta_bg);  in descriptor_loc()
775 	bg = sbi->s_desc_per_block * nr;  in descriptor_loc()
785 	struct ext2_sb_info * sbi;  in ext2_fill_super()  local
801 	sbi = kzalloc(sizeof(*sbi), GFP_KERNEL);  in ext2_fill_super()
802 	if (!sbi)  in ext2_fill_super()
805 	sbi->s_blockgroup_lock =  in ext2_fill_super()
807 	if (!sbi->s_blockgroup_lock) {  in ext2_fill_super()
808 		kfree(sbi);  in ext2_fill_super()
811 	sb->s_fs_info = sbi;  in ext2_fill_super()
812 	sbi->s_sb_block = sb_block;  in ext2_fill_super()
814 	spin_lock_init(&sbi->s_lock);  in ext2_fill_super()
849 	sbi->s_es = es;  in ext2_fill_super()
858 		set_opt(sbi->s_mount_opt, DEBUG);  in ext2_fill_super()
860 		set_opt(sbi->s_mount_opt, GRPID);  in ext2_fill_super()
862 		set_opt(sbi->s_mount_opt, NO_UID32);  in ext2_fill_super()
865 		set_opt(sbi->s_mount_opt, XATTR_USER);  in ext2_fill_super()
869 		set_opt(sbi->s_mount_opt, POSIX_ACL);  in ext2_fill_super()
872 	if (le16_to_cpu(sbi->s_es->s_errors) == EXT2_ERRORS_PANIC)  in ext2_fill_super()
873 		set_opt(sbi->s_mount_opt, ERRORS_PANIC);  in ext2_fill_super()
874 	else if (le16_to_cpu(sbi->s_es->s_errors) == EXT2_ERRORS_CONTINUE)  in ext2_fill_super()
875 		set_opt(sbi->s_mount_opt, ERRORS_CONT);  in ext2_fill_super()
877 		set_opt(sbi->s_mount_opt, ERRORS_RO);  in ext2_fill_super()
879 	sbi->s_resuid = make_kuid(&init_user_ns, le16_to_cpu(es->s_def_resuid));  in ext2_fill_super()
880 	sbi->s_resgid = make_kgid(&init_user_ns, le16_to_cpu(es->s_def_resgid));  in ext2_fill_super()
882 	set_opt(sbi->s_mount_opt, RESERVATION);  in ext2_fill_super()
919 	blocksize = BLOCK_SIZE << le32_to_cpu(sbi->s_es->s_log_block_size);  in ext2_fill_super()
921 	if (sbi->s_mount_opt & EXT2_MOUNT_DAX) {  in ext2_fill_super()
953 		sbi->s_es = es;  in ext2_fill_super()
964 		sbi->s_inode_size = EXT2_GOOD_OLD_INODE_SIZE;  in ext2_fill_super()
965 		sbi->s_first_ino = EXT2_GOOD_OLD_FIRST_INO;  in ext2_fill_super()
967 		sbi->s_inode_size = le16_to_cpu(es->s_inode_size);  in ext2_fill_super()
968 		sbi->s_first_ino = le32_to_cpu(es->s_first_ino);  in ext2_fill_super()
969 		if ((sbi->s_inode_size < EXT2_GOOD_OLD_INODE_SIZE) ||  in ext2_fill_super()
970 		    !is_power_of_2(sbi->s_inode_size) ||  in ext2_fill_super()
971 		    (sbi->s_inode_size > blocksize)) {  in ext2_fill_super()
974 				sbi->s_inode_size);  in ext2_fill_super()
979 	sbi->s_frag_size = EXT2_MIN_FRAG_SIZE <<  in ext2_fill_super()
981 	if (sbi->s_frag_size == 0)  in ext2_fill_super()
983 	sbi->s_frags_per_block = sb->s_blocksize / sbi->s_frag_size;  in ext2_fill_super()
985 	sbi->s_blocks_per_group = le32_to_cpu(es->s_blocks_per_group);  in ext2_fill_super()
986 	sbi->s_frags_per_group = le32_to_cpu(es->s_frags_per_group);  in ext2_fill_super()
987 	sbi->s_inodes_per_group = le32_to_cpu(es->s_inodes_per_group);  in ext2_fill_super()
991 	sbi->s_inodes_per_block = sb->s_blocksize / EXT2_INODE_SIZE(sb);  in ext2_fill_super()
992 	if (sbi->s_inodes_per_block == 0 || sbi->s_inodes_per_group == 0)  in ext2_fill_super()
994 	sbi->s_itb_per_group = sbi->s_inodes_per_group /  in ext2_fill_super()
995 					sbi->s_inodes_per_block;  in ext2_fill_super()
996 	sbi->s_desc_per_block = sb->s_blocksize /  in ext2_fill_super()
998 	sbi->s_sbh = bh;  in ext2_fill_super()
999 	sbi->s_mount_state = le16_to_cpu(es->s_state);  in ext2_fill_super()
1000 	sbi->s_addr_per_block_bits =  in ext2_fill_super()
1002 	sbi->s_desc_per_block_bits =  in ext2_fill_super()
1014 	if (sb->s_blocksize != sbi->s_frag_size) {  in ext2_fill_super()
1018 			sbi->s_frag_size, sb->s_blocksize);  in ext2_fill_super()
1022 	if (sbi->s_blocks_per_group > sb->s_blocksize * 8) {  in ext2_fill_super()
1025 			sbi->s_blocks_per_group);  in ext2_fill_super()
1028 	if (sbi->s_frags_per_group > sb->s_blocksize * 8) {  in ext2_fill_super()
1031 			sbi->s_frags_per_group);  in ext2_fill_super()
1034 	if (sbi->s_inodes_per_group > sb->s_blocksize * 8) {  in ext2_fill_super()
1037 			sbi->s_inodes_per_group);  in ext2_fill_super()
1043  	sbi->s_groups_count = ((le32_to_cpu(es->s_blocks_count) -  in ext2_fill_super()
1046 	db_count = (sbi->s_groups_count + EXT2_DESC_PER_BLOCK(sb) - 1) /  in ext2_fill_super()
1048 	sbi->s_group_desc = kmalloc (db_count * sizeof (struct buffer_head *), GFP_KERNEL);  in ext2_fill_super()
1049 	if (sbi->s_group_desc == NULL) {  in ext2_fill_super()
1053 	bgl_lock_init(sbi->s_blockgroup_lock);  in ext2_fill_super()
1054 	sbi->s_debts = kcalloc(sbi->s_groups_count, sizeof(*sbi->s_debts), GFP_KERNEL);  in ext2_fill_super()
1055 	if (!sbi->s_debts) {  in ext2_fill_super()
1061 		sbi->s_group_desc[i] = sb_bread(sb, block);  in ext2_fill_super()
1062 		if (!sbi->s_group_desc[i]) {  in ext2_fill_super()
1064 				brelse (sbi->s_group_desc[j]);  in ext2_fill_super()
1074 	sbi->s_gdb_count = db_count;  in ext2_fill_super()
1075 	get_random_bytes(&sbi->s_next_generation, sizeof(u32));  in ext2_fill_super()
1076 	spin_lock_init(&sbi->s_next_gen_lock);  in ext2_fill_super()
1079 	spin_lock_init(&sbi->s_rsv_window_lock);  in ext2_fill_super()
1080 	sbi->s_rsv_window_root = RB_ROOT;  in ext2_fill_super()
1087 	sbi->s_rsv_window_head.rsv_start = EXT2_RESERVE_WINDOW_NOT_ALLOCATED;  in ext2_fill_super()
1088 	sbi->s_rsv_window_head.rsv_end = EXT2_RESERVE_WINDOW_NOT_ALLOCATED;  in ext2_fill_super()
1089 	sbi->s_rsv_window_head.rsv_alloc_hit = 0;  in ext2_fill_super()
1090 	sbi->s_rsv_window_head.rsv_goal_size = 0;  in ext2_fill_super()
1091 	ext2_rsv_window_add(sb, &sbi->s_rsv_window_head);  in ext2_fill_super()
1093 	err = percpu_counter_init(&sbi->s_freeblocks_counter,  in ext2_fill_super()
1096 		err = percpu_counter_init(&sbi->s_freeinodes_counter,  in ext2_fill_super()
1100 		err = percpu_counter_init(&sbi->s_dirs_counter,  in ext2_fill_super()
1152 	percpu_counter_destroy(&sbi->s_freeblocks_counter);  in ext2_fill_super()
1153 	percpu_counter_destroy(&sbi->s_freeinodes_counter);  in ext2_fill_super()
1154 	percpu_counter_destroy(&sbi->s_dirs_counter);  in ext2_fill_super()
1157 		brelse(sbi->s_group_desc[i]);  in ext2_fill_super()
1159 	kfree(sbi->s_group_desc);  in ext2_fill_super()
1160 	kfree(sbi->s_debts);  in ext2_fill_super()
1165 	kfree(sbi->s_blockgroup_lock);  in ext2_fill_super()
1166 	kfree(sbi);  in ext2_fill_super()
1218 	struct ext2_sb_info *sbi = EXT2_SB(sb);  in ext2_sync_fs()  local
1227 	spin_lock(&sbi->s_lock);  in ext2_sync_fs()
1232 	spin_unlock(&sbi->s_lock);  in ext2_sync_fs()
1239 	struct ext2_sb_info *sbi = EXT2_SB(sb);  in ext2_freeze()  local
1251 	spin_lock(&sbi->s_lock);  in ext2_freeze()
1252 	sbi->s_es->s_state = cpu_to_le16(sbi->s_mount_state);  in ext2_freeze()
1253 	spin_unlock(&sbi->s_lock);  in ext2_freeze()
1254 	ext2_sync_super(sb, sbi->s_es, 1);  in ext2_freeze()
1275 	struct ext2_sb_info * sbi = EXT2_SB(sb);  in ext2_remount()  local
1282 	spin_lock(&sbi->s_lock);  in ext2_remount()
1286 	old_opts.s_mount_opt = sbi->s_mount_opt;  in ext2_remount()
1287 	old_opts.s_resuid = sbi->s_resuid;  in ext2_remount()
1288 	old_opts.s_resgid = sbi->s_resgid;  in ext2_remount()
1299 		((sbi->s_mount_opt & EXT2_MOUNT_POSIX_ACL) ? MS_POSIXACL : 0);  in ext2_remount()
1301 	es = sbi->s_es;  in ext2_remount()
1302 	if ((sbi->s_mount_opt ^ old_opts.s_mount_opt) & EXT2_MOUNT_DAX) {  in ext2_remount()
1305 		sbi->s_mount_opt ^= EXT2_MOUNT_DAX;  in ext2_remount()
1308 		spin_unlock(&sbi->s_lock);  in ext2_remount()
1313 		    !(sbi->s_mount_state & EXT2_VALID_FS)) {  in ext2_remount()
1314 			spin_unlock(&sbi->s_lock);  in ext2_remount()
1322 		es->s_state = cpu_to_le16(sbi->s_mount_state);  in ext2_remount()
1324 		spin_unlock(&sbi->s_lock);  in ext2_remount()
1328 			spin_lock(&sbi->s_lock);  in ext2_remount()
1349 		sbi->s_mount_state = le16_to_cpu(es->s_state);  in ext2_remount()
1352 		spin_unlock(&sbi->s_lock);  in ext2_remount()
1361 	sbi->s_mount_opt = old_opts.s_mount_opt;  in ext2_remount()
1362 	sbi->s_resuid = old_opts.s_resuid;  in ext2_remount()
1363 	sbi->s_resgid = old_opts.s_resgid;  in ext2_remount()
1365 	spin_unlock(&sbi->s_lock);  in ext2_remount()
1372 	struct ext2_sb_info *sbi = EXT2_SB(sb);  in ext2_statfs()  local
1373 	struct ext2_super_block *es = sbi->s_es;  in ext2_statfs()
1376 	spin_lock(&sbi->s_lock);  in ext2_statfs()
1379 		sbi->s_overhead_last = 0;  in ext2_statfs()
1380 	else if (sbi->s_blocks_last != le32_to_cpu(es->s_blocks_count)) {  in ext2_statfs()
1401 		for (i = 0; i < sbi->s_groups_count; i++)  in ext2_statfs()
1409 		overhead += (sbi->s_groups_count *  in ext2_statfs()
1410 			     (2 + sbi->s_itb_per_group));  in ext2_statfs()
1411 		sbi->s_overhead_last = overhead;  in ext2_statfs()
1413 		sbi->s_blocks_last = le32_to_cpu(es->s_blocks_count);  in ext2_statfs()
1418 	buf->f_blocks = le32_to_cpu(es->s_blocks_count) - sbi->s_overhead_last;  in ext2_statfs()
1432 	spin_unlock(&sbi->s_lock);  in ext2_statfs()