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 	kfree(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);  in ext2_put_super()
175 	kfree(sbi);  in ext2_put_super()
242 	struct ext2_sb_info *sbi = EXT2_SB(sb);  in ext2_show_options()  local
243 	struct ext2_super_block *es = sbi->s_es;  in ext2_show_options()
246 	spin_lock(&sbi->s_lock);  in ext2_show_options()
249 	if (sbi->s_sb_block != 1)  in ext2_show_options()
250 		seq_printf(seq, ",sb=%lu", sbi->s_sb_block);  in ext2_show_options()
257 	if (!uid_eq(sbi->s_resuid, make_kuid(&init_user_ns, EXT2_DEF_RESUID)) ||  in ext2_show_options()
260 				from_kuid_munged(&init_user_ns, sbi->s_resuid));  in ext2_show_options()
262 	if (!gid_eq(sbi->s_resgid, make_kgid(&init_user_ns, EXT2_DEF_RESGID)) ||  in ext2_show_options()
265 				from_kgid_munged(&init_user_ns, sbi->s_resgid));  in ext2_show_options()
320 	spin_unlock(&sbi->s_lock);  in ext2_show_options()
649 	struct ext2_sb_info *sbi = EXT2_SB(sb);  in ext2_setup_super()  local
659 	if (!(sbi->s_mount_state & EXT2_VALID_FS))  in ext2_setup_super()
663 	else if ((sbi->s_mount_state & EXT2_ERROR_FS))  in ext2_setup_super()
687 			sbi->s_frag_size,  in ext2_setup_super()
688 			sbi->s_groups_count,  in ext2_setup_super()
691 			sbi->s_mount_opt);  in ext2_setup_super()
698 	struct ext2_sb_info *sbi = EXT2_SB(sb);  in ext2_check_descriptors()  local
702 	for (i = 0; i < sbi->s_groups_count; i++) {  in ext2_check_descriptors()
707 		if (i == sbi->s_groups_count - 1)  in ext2_check_descriptors()
708 			last_block = le32_to_cpu(sbi->s_es->s_blocks_count) - 1;  in ext2_check_descriptors()
732 		    le32_to_cpu(gdp->bg_inode_table) + sbi->s_itb_per_group - 1 >  in ext2_check_descriptors()
807 	struct ext2_sb_info *sbi = EXT2_SB(sb);  in descriptor_loc()  local
811 	first_meta_bg = le32_to_cpu(sbi->s_es->s_first_meta_bg);  in descriptor_loc()
816 	bg = sbi->s_desc_per_block * nr;  in descriptor_loc()
827 	struct ext2_sb_info * sbi;  in ext2_fill_super()  local
843 	sbi = kzalloc(sizeof(*sbi), GFP_KERNEL);  in ext2_fill_super()
844 	if (!sbi)  in ext2_fill_super()
847 	sbi->s_blockgroup_lock =  in ext2_fill_super()
849 	if (!sbi->s_blockgroup_lock) {  in ext2_fill_super()
850 		kfree(sbi);  in ext2_fill_super()
853 	sb->s_fs_info = sbi;  in ext2_fill_super()
854 	sbi->s_sb_block = sb_block;  in ext2_fill_super()
855 	sbi->s_daxdev = dax_dev;  in ext2_fill_super()
857 	spin_lock_init(&sbi->s_lock);  in ext2_fill_super()
893 	sbi->s_es = es;  in ext2_fill_super()
917 	if (le16_to_cpu(sbi->s_es->s_errors) == EXT2_ERRORS_PANIC)  in ext2_fill_super()
919 	else if (le16_to_cpu(sbi->s_es->s_errors) == EXT2_ERRORS_CONTINUE)  in ext2_fill_super()
932 	sbi->s_mount_opt = opts.s_mount_opt;  in ext2_fill_super()
933 	sbi->s_resuid = opts.s_resuid;  in ext2_fill_super()
934 	sbi->s_resgid = opts.s_resgid;  in ext2_fill_super()
966 	blocksize = BLOCK_SIZE << le32_to_cpu(sbi->s_es->s_log_block_size);  in ext2_fill_super()
972 			clear_opt(sbi->s_mount_opt, DAX);  in ext2_fill_super()
995 		sbi->s_es = es;  in ext2_fill_super()
1008 		sbi->s_inode_size = EXT2_GOOD_OLD_INODE_SIZE;  in ext2_fill_super()
1009 		sbi->s_first_ino = EXT2_GOOD_OLD_FIRST_INO;  in ext2_fill_super()
1011 		sbi->s_inode_size = le16_to_cpu(es->s_inode_size);  in ext2_fill_super()
1012 		sbi->s_first_ino = le32_to_cpu(es->s_first_ino);  in ext2_fill_super()
1013 		if ((sbi->s_inode_size < EXT2_GOOD_OLD_INODE_SIZE) ||  in ext2_fill_super()
1014 		    !is_power_of_2(sbi->s_inode_size) ||  in ext2_fill_super()
1015 		    (sbi->s_inode_size > blocksize)) {  in ext2_fill_super()
1018 				sbi->s_inode_size);  in ext2_fill_super()
1023 	sbi->s_frag_size = EXT2_MIN_FRAG_SIZE <<  in ext2_fill_super()
1025 	if (sbi->s_frag_size == 0)  in ext2_fill_super()
1027 	sbi->s_frags_per_block = sb->s_blocksize / sbi->s_frag_size;  in ext2_fill_super()
1029 	sbi->s_blocks_per_group = le32_to_cpu(es->s_blocks_per_group);  in ext2_fill_super()
1030 	sbi->s_frags_per_group = le32_to_cpu(es->s_frags_per_group);  in ext2_fill_super()
1031 	sbi->s_inodes_per_group = le32_to_cpu(es->s_inodes_per_group);  in ext2_fill_super()
1033 	sbi->s_inodes_per_block = sb->s_blocksize / EXT2_INODE_SIZE(sb);  in ext2_fill_super()
1034 	if (sbi->s_inodes_per_block == 0 || sbi->s_inodes_per_group == 0)  in ext2_fill_super()
1036 	sbi->s_itb_per_group = sbi->s_inodes_per_group /  in ext2_fill_super()
1037 					sbi->s_inodes_per_block;  in ext2_fill_super()
1038 	sbi->s_desc_per_block = sb->s_blocksize /  in ext2_fill_super()
1040 	sbi->s_sbh = bh;  in ext2_fill_super()
1041 	sbi->s_mount_state = le16_to_cpu(es->s_state);  in ext2_fill_super()
1042 	sbi->s_addr_per_block_bits =  in ext2_fill_super()
1044 	sbi->s_desc_per_block_bits =  in ext2_fill_super()
1056 	if (sb->s_blocksize != sbi->s_frag_size) {  in ext2_fill_super()
1060 			sbi->s_frag_size, sb->s_blocksize);  in ext2_fill_super()
1064 	if (sbi->s_blocks_per_group > sb->s_blocksize * 8) {  in ext2_fill_super()
1067 			sbi->s_blocks_per_group);  in ext2_fill_super()
1070 	if (sbi->s_frags_per_group > sb->s_blocksize * 8) {  in ext2_fill_super()
1073 			sbi->s_frags_per_group);  in ext2_fill_super()
1076 	if (sbi->s_inodes_per_group > sb->s_blocksize * 8) {  in ext2_fill_super()
1079 			sbi->s_inodes_per_group);  in ext2_fill_super()
1085  	sbi->s_groups_count = ((le32_to_cpu(es->s_blocks_count) -  in ext2_fill_super()
1088 	db_count = (sbi->s_groups_count + EXT2_DESC_PER_BLOCK(sb) - 1) /  in ext2_fill_super()
1090 	sbi->s_group_desc = kmalloc_array (db_count,  in ext2_fill_super()
1093 	if (sbi->s_group_desc == NULL) {  in ext2_fill_super()
1098 	bgl_lock_init(sbi->s_blockgroup_lock);  in ext2_fill_super()
1099 	sbi->s_debts = kcalloc(sbi->s_groups_count, sizeof(*sbi->s_debts), GFP_KERNEL);  in ext2_fill_super()
1100 	if (!sbi->s_debts) {  in ext2_fill_super()
1107 		sbi->s_group_desc[i] = sb_bread(sb, block);  in ext2_fill_super()
1108 		if (!sbi->s_group_desc[i]) {  in ext2_fill_super()
1110 				brelse (sbi->s_group_desc[j]);  in ext2_fill_super()
1120 	sbi->s_gdb_count = db_count;  in ext2_fill_super()
1121 	get_random_bytes(&sbi->s_next_generation, sizeof(u32));  in ext2_fill_super()
1122 	spin_lock_init(&sbi->s_next_gen_lock);  in ext2_fill_super()
1125 	spin_lock_init(&sbi->s_rsv_window_lock);  in ext2_fill_super()
1126 	sbi->s_rsv_window_root = RB_ROOT;  in ext2_fill_super()
1133 	sbi->s_rsv_window_head.rsv_start = EXT2_RESERVE_WINDOW_NOT_ALLOCATED;  in ext2_fill_super()
1134 	sbi->s_rsv_window_head.rsv_end = EXT2_RESERVE_WINDOW_NOT_ALLOCATED;  in ext2_fill_super()
1135 	sbi->s_rsv_window_head.rsv_alloc_hit = 0;  in ext2_fill_super()
1136 	sbi->s_rsv_window_head.rsv_goal_size = 0;  in ext2_fill_super()
1137 	ext2_rsv_window_add(sb, &sbi->s_rsv_window_head);  in ext2_fill_super()
1139 	err = percpu_counter_init(&sbi->s_freeblocks_counter,  in ext2_fill_super()
1142 		err = percpu_counter_init(&sbi->s_freeinodes_counter,  in ext2_fill_super()
1146 		err = percpu_counter_init(&sbi->s_dirs_counter,  in ext2_fill_super()
1155 	sbi->s_ea_block_cache = ext2_xattr_create_cache();  in ext2_fill_super()
1156 	if (!sbi->s_ea_block_cache) {  in ext2_fill_super()
1207 	ext2_xattr_destroy_cache(sbi->s_ea_block_cache);  in ext2_fill_super()
1208 	percpu_counter_destroy(&sbi->s_freeblocks_counter);  in ext2_fill_super()
1209 	percpu_counter_destroy(&sbi->s_freeinodes_counter);  in ext2_fill_super()
1210 	percpu_counter_destroy(&sbi->s_dirs_counter);  in ext2_fill_super()
1213 		brelse(sbi->s_group_desc[i]);  in ext2_fill_super()
1215 	kfree(sbi->s_group_desc);  in ext2_fill_super()
1216 	kfree(sbi->s_debts);  in ext2_fill_super()
1221 	kfree(sbi->s_blockgroup_lock);  in ext2_fill_super()
1222 	kfree(sbi);  in ext2_fill_super()
1275 	struct ext2_sb_info *sbi = EXT2_SB(sb);  in ext2_sync_fs()  local
1284 	spin_lock(&sbi->s_lock);  in ext2_sync_fs()
1289 	spin_unlock(&sbi->s_lock);  in ext2_sync_fs()
1296 	struct ext2_sb_info *sbi = EXT2_SB(sb);  in ext2_freeze()  local
1308 	spin_lock(&sbi->s_lock);  in ext2_freeze()
1309 	sbi->s_es->s_state = cpu_to_le16(sbi->s_mount_state);  in ext2_freeze()
1310 	spin_unlock(&sbi->s_lock);  in ext2_freeze()
1311 	ext2_sync_super(sb, sbi->s_es, 1);  in ext2_freeze()
1332 	struct ext2_sb_info * sbi = EXT2_SB(sb);  in ext2_remount()  local
1339 	spin_lock(&sbi->s_lock);  in ext2_remount()
1340 	new_opts.s_mount_opt = sbi->s_mount_opt;  in ext2_remount()
1341 	new_opts.s_resuid = sbi->s_resuid;  in ext2_remount()
1342 	new_opts.s_resgid = sbi->s_resgid;  in ext2_remount()
1343 	spin_unlock(&sbi->s_lock);  in ext2_remount()
1348 	spin_lock(&sbi->s_lock);  in ext2_remount()
1349 	es = sbi->s_es;  in ext2_remount()
1350 	if ((sbi->s_mount_opt ^ new_opts.s_mount_opt) & EXT2_MOUNT_DAX) {  in ext2_remount()
1359 		    !(sbi->s_mount_state & EXT2_VALID_FS))  in ext2_remount()
1366 		es->s_state = cpu_to_le16(sbi->s_mount_state);  in ext2_remount()
1368 		spin_unlock(&sbi->s_lock);  in ext2_remount()
1379 			spin_unlock(&sbi->s_lock);  in ext2_remount()
1391 		sbi->s_mount_state = le16_to_cpu(es->s_state);  in ext2_remount()
1394 		spin_unlock(&sbi->s_lock);  in ext2_remount()
1401 	spin_lock(&sbi->s_lock);  in ext2_remount()
1403 	sbi->s_mount_opt = new_opts.s_mount_opt;  in ext2_remount()
1404 	sbi->s_resuid = new_opts.s_resuid;  in ext2_remount()
1405 	sbi->s_resgid = new_opts.s_resgid;  in ext2_remount()
1408 	spin_unlock(&sbi->s_lock);  in ext2_remount()
1416 	struct ext2_sb_info *sbi = EXT2_SB(sb);  in ext2_statfs()  local
1417 	struct ext2_super_block *es = sbi->s_es;  in ext2_statfs()
1420 	spin_lock(&sbi->s_lock);  in ext2_statfs()
1423 		sbi->s_overhead_last = 0;  in ext2_statfs()
1424 	else if (sbi->s_blocks_last != le32_to_cpu(es->s_blocks_count)) {  in ext2_statfs()
1445 		for (i = 0; i < sbi->s_groups_count; i++)  in ext2_statfs()
1453 		overhead += (sbi->s_groups_count *  in ext2_statfs()
1454 			     (2 + sbi->s_itb_per_group));  in ext2_statfs()
1455 		sbi->s_overhead_last = overhead;  in ext2_statfs()
1457 		sbi->s_blocks_last = le32_to_cpu(es->s_blocks_count);  in ext2_statfs()
1462 	buf->f_blocks = le32_to_cpu(es->s_blocks_count) - sbi->s_overhead_last;  in ext2_statfs()
1476 	spin_unlock(&sbi->s_lock);  in ext2_statfs()