2 * Copyright (C) 2014 The Android Open Source Project
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
17 #ifndef _EXT4_UTILS_EXT4_SB_H_
18 #define _EXT4_UTILS_EXT4_SB_H_
20 #include "ext4_kernel_headers.h"
22 #define EXT4_SUPER_MAGIC 0xEF53
29 int64_t len; /* If set to 0, ask the block device for the size,
30 * if less than 0, reserve that much space at the
31 * end of the partition, else use the size given. */
33 uint32_t blocks_per_group;
34 uint32_t inodes_per_group;
37 uint32_t journal_blocks;
38 uint16_t feat_ro_compat;
40 uint16_t feat_incompat;
41 uint32_t bg_desc_reserve_blocks;
42 uint32_t reserve_pcnt;
47 int ext4_parse_sb(struct ext4_super_block *sb, struct fs_info *info);