1 /* 2 * Copyright (C) 2014 The Android Open Source Project 3 * 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 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 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. 15 */ 16 17 #ifndef F2FS_UTILS_F2F2_UTILS_H_ 18 #define F2FS_UTILS_F2F2_UTILS_H_ 19 20 #ifdef __cplusplus 21 extern "C" { 22 #endif 23 24 25 26 27 28 #define ver_after(a, b) (typecheck(unsigned long long, a) && \ 29 typecheck(unsigned long long, b) && \ 30 ((long long)((a) - (b)) > 0)) 31 32 #define ver_equal(a, b) (typecheck(unsigned long long, a) && \ 33 typecheck(unsigned long long, b) && \ 34 ((long long)((a) - (b)) == 0)) 35 36 struct f2fs_sit_block; 37 struct f2fs_summary_block; 38 39 struct f2fs_info { 40 u_int64_t blocks_per_segment; 41 u_int32_t block_size; 42 43 char *sit_bmp; 44 u_int32_t sit_bmp_size; 45 u_int64_t blocks_per_sit; 46 struct f2fs_sit_block *sit_blocks; 47 struct f2fs_summary_block *sit_sums; 48 49 u_int64_t cp_blkaddr; 50 u_int64_t cp_valid_cp_blkaddr; 51 52 u_int64_t sit_blkaddr; 53 54 u_int64_t nat_blkaddr; 55 56 u_int64_t ssa_blkaddr; 57 58 u_int64_t main_blkaddr; 59 60 u_int64_t total_user_used; 61 u_int64_t total_blocks; 62 }; 63 64 u64 get_num_blocks_used(struct f2fs_info *info); 65 struct f2fs_info *generate_f2fs_info(int fd); 66 void free_f2fs_info(struct f2fs_info *info); 67 unsigned int get_f2fs_filesystem_size_sec(char *dev); 68 int run_on_used_blocks(u64 startblock, struct f2fs_info *info, int (*func)(u64 pos, void *data), void *data); 69 70 #ifdef __cplusplus 71 } 72 #endif 73 74 #endif // F2FS_UTILS_F2F2_UTILS_H_ 75