| #define _LARGEFILE64_SOURCE |
| |
| #define LOG_TAG "f2fs_sparseblock" |
| |
| |
| #include <cutils/log.h> |
| #include <fcntl.h> |
| #include <f2fs_fs.h> |
| #include <linux/types.h> |
| #include <sys/stat.h> |
| #include "f2fs_sparseblock.h" |
| |
| |
| #define D_DISP_u32(ptr, member) \ |
| do { \ |
| SLOGD("%-30s" "\t\t[0x%#08x : %u]\n", \ |
| #member, le32_to_cpu((ptr)->member), le32_to_cpu((ptr)->member) ); \ |
| } while (0); |
| |
| #define D_DISP_u64(ptr, member) \ |
| do { \ |
| SLOGD("%-30s" "\t\t[0x%#016llx : %llu]\n", \ |
| #member, le64_to_cpu((ptr)->member), le64_to_cpu((ptr)->member) ); \ |
| } while (0); |
| |
| #define segno_in_journal(sum, i) (sum->sit_j.entries[i].segno) |
| |
| #define sit_in_journal(sum, i) (sum->sit_j.entries[i].se) |
| |
| static void dbg_print_raw_sb_info(struct f2fs_super_block *sb) |
| { |
| SLOGD("\n"); |
| SLOGD("+--------------------------------------------------------+\n"); |
| SLOGD("| Super block |\n"); |
| SLOGD("+--------------------------------------------------------+\n"); |
| |
| D_DISP_u32(sb, magic); |
| D_DISP_u32(sb, major_ver); |
| D_DISP_u32(sb, minor_ver); |
| D_DISP_u32(sb, log_sectorsize); |
| D_DISP_u32(sb, log_sectors_per_block); |
| |
| D_DISP_u32(sb, log_blocksize); |
| D_DISP_u32(sb, log_blocks_per_seg); |
| D_DISP_u32(sb, segs_per_sec); |
| D_DISP_u32(sb, secs_per_zone); |
| D_DISP_u32(sb, checksum_offset); |
| D_DISP_u64(sb, block_count); |
| |
| D_DISP_u32(sb, section_count); |
| D_DISP_u32(sb, segment_count); |
| D_DISP_u32(sb, segment_count_ckpt); |
| D_DISP_u32(sb, segment_count_sit); |
| D_DISP_u32(sb, segment_count_nat); |
| |
| D_DISP_u32(sb, segment_count_ssa); |
| D_DISP_u32(sb, segment_count_main); |
| D_DISP_u32(sb, segment0_blkaddr); |
| |
| D_DISP_u32(sb, cp_blkaddr); |
| D_DISP_u32(sb, sit_blkaddr); |
| D_DISP_u32(sb, nat_blkaddr); |
| D_DISP_u32(sb, ssa_blkaddr); |
| D_DISP_u32(sb, main_blkaddr); |
| |
| D_DISP_u32(sb, root_ino); |
| D_DISP_u32(sb, node_ino); |
| D_DISP_u32(sb, meta_ino); |
| D_DISP_u32(sb, cp_payload); |
| SLOGD("\n"); |
| } |
| static void dbg_print_raw_ckpt_struct(struct f2fs_checkpoint *cp) |
| { |
| SLOGD("\n"); |
| SLOGD("+--------------------------------------------------------+\n"); |
| SLOGD("| Checkpoint |\n"); |
| SLOGD("+--------------------------------------------------------+\n"); |
| |
| D_DISP_u64(cp, checkpoint_ver); |
| D_DISP_u64(cp, user_block_count); |
| D_DISP_u64(cp, valid_block_count); |
| D_DISP_u32(cp, rsvd_segment_count); |
| D_DISP_u32(cp, overprov_segment_count); |
| D_DISP_u32(cp, free_segment_count); |
| |
| D_DISP_u32(cp, alloc_type[CURSEG_HOT_NODE]); |
| D_DISP_u32(cp, alloc_type[CURSEG_WARM_NODE]); |
| D_DISP_u32(cp, alloc_type[CURSEG_COLD_NODE]); |
| D_DISP_u32(cp, cur_node_segno[0]); |
| D_DISP_u32(cp, cur_node_segno[1]); |
| D_DISP_u32(cp, cur_node_segno[2]); |
| |
| D_DISP_u32(cp, cur_node_blkoff[0]); |
| D_DISP_u32(cp, cur_node_blkoff[1]); |
| D_DISP_u32(cp, cur_node_blkoff[2]); |
| |
| |
| D_DISP_u32(cp, alloc_type[CURSEG_HOT_DATA]); |
| D_DISP_u32(cp, alloc_type[CURSEG_WARM_DATA]); |
| D_DISP_u32(cp, alloc_type[CURSEG_COLD_DATA]); |
| D_DISP_u32(cp, cur_data_segno[0]); |
| D_DISP_u32(cp, cur_data_segno[1]); |
| D_DISP_u32(cp, cur_data_segno[2]); |
| |
| D_DISP_u32(cp, cur_data_blkoff[0]); |
| D_DISP_u32(cp, cur_data_blkoff[1]); |
| D_DISP_u32(cp, cur_data_blkoff[2]); |
| |
| D_DISP_u32(cp, ckpt_flags); |
| D_DISP_u32(cp, cp_pack_total_block_count); |
| D_DISP_u32(cp, cp_pack_start_sum); |
| D_DISP_u32(cp, valid_node_count); |
| D_DISP_u32(cp, valid_inode_count); |
| D_DISP_u32(cp, next_free_nid); |
| D_DISP_u32(cp, sit_ver_bitmap_bytesize); |
| D_DISP_u32(cp, nat_ver_bitmap_bytesize); |
| D_DISP_u32(cp, checksum_offset); |
| D_DISP_u64(cp, elapsed_time); |
| |
| D_DISP_u32(cp, sit_nat_version_bitmap[0]); |
| SLOGD("\n\n"); |
| } |
| |
| static void dbg_print_info_struct(struct f2fs_info *info) |
| { |
| SLOGD("\n"); |
| SLOGD("+--------------------------------------------------------+\n"); |
| SLOGD("| F2FS_INFO |\n"); |
| SLOGD("+--------------------------------------------------------+\n"); |
| SLOGD("blocks_per_segment: %"PRIu64, info->blocks_per_segment); |
| SLOGD("block_size: %d", info->block_size); |
| SLOGD("sit_bmp loc: %p", info->sit_bmp); |
| SLOGD("sit_bmp_size: %d", info->sit_bmp_size); |
| SLOGD("blocks_per_sit: %"PRIu64, info->blocks_per_sit); |
| SLOGD("sit_blocks loc: %p", info->sit_blocks); |
| SLOGD("sit_sums loc: %p", info->sit_sums); |
| SLOGD("sit_sums num: %d", le16_to_cpu(info->sit_sums->n_sits)); |
| unsigned int i; |
| for(i = 0; i < (le16_to_cpu(info->sit_sums->n_sits)); i++) { |
| SLOGD("entry %d in journal entries is for segment %d",i, le32_to_cpu(segno_in_journal(info->sit_sums, i))); |
| } |
| |
| SLOGD("cp_blkaddr: %"PRIu64, info->cp_blkaddr); |
| SLOGD("cp_valid_cp_blkaddr: %"PRIu64, info->cp_valid_cp_blkaddr); |
| SLOGD("sit_blkaddr: %"PRIu64, info->sit_blkaddr); |
| SLOGD("nat_blkaddr: %"PRIu64, info->nat_blkaddr); |
| SLOGD("ssa_blkaddr: %"PRIu64, info->ssa_blkaddr); |
| SLOGD("main_blkaddr: %"PRIu64, info->main_blkaddr); |
| SLOGD("total_user_used: %"PRIu64, info->total_user_used); |
| SLOGD("total_blocks: %"PRIu64, info->total_blocks); |
| SLOGD("\n\n"); |
| } |
| |
| |
| /* read blocks */ |
| static int read_structure(int fd, unsigned long long start, void *buf, ssize_t len) |
| { |
| off64_t ret; |
| |
| ret = lseek64(fd, start, SEEK_SET); |
| if (ret < 0) { |
| SLOGE("failed to seek\n"); |
| return ret; |
| } |
| |
| ret = read(fd, buf, len); |
| if (ret < 0) { |
| SLOGE("failed to read\n"); |
| return ret; |
| } |
| if (ret != len) { |
| SLOGE("failed to read all\n"); |
| return -1; |
| } |
| return 0; |
| } |
| |
| static int read_structure_blk(int fd, unsigned long long start_blk, void *buf, size_t len) |
| { |
| return read_structure(fd, F2FS_BLKSIZE*start_blk, buf, F2FS_BLKSIZE * len); |
| } |
| |
| static int read_f2fs_sb(int fd, struct f2fs_super_block *sb) |
| { |
| int rc; |
| rc = read_structure(fd, F2FS_SUPER_OFFSET, sb, sizeof(*sb)); |
| if (le32_to_cpu(sb->magic) != F2FS_SUPER_MAGIC) { |
| SLOGE("Not a valid F2FS super block. Magic:%#08x != %#08x", |
| le32_to_cpu(sb->magic), F2FS_SUPER_MAGIC); |
| return -1; |
| } |
| return 0; |
| } |
| |
| unsigned int get_f2fs_filesystem_size_sec(char *dev) |
| { |
| int fd; |
| if ((fd = open(dev, O_RDONLY)) < 0) { |
| SLOGE("Cannot open device to get filesystem size "); |
| return 0; |
| } |
| struct f2fs_super_block sb; |
| if(read_f2fs_sb(fd, &sb)) |
| return 0; |
| return (unsigned int)(le64_to_cpu(sb.block_count)*F2FS_BLKSIZE/DEFAULT_SECTOR_SIZE); |
| } |
| |
| static struct f2fs_checkpoint *validate_checkpoint(block_t cp_addr, |
| unsigned long long *version, int fd) |
| { |
| unsigned char *cp_block_1, *cp_block_2; |
| struct f2fs_checkpoint *cp_block, *cp_ret; |
| u64 cp1_version = 0, cp2_version = 0; |
| |
| cp_block_1 = malloc(F2FS_BLKSIZE); |
| if (!cp_block_1) |
| return NULL; |
| |
| /* Read the 1st cp block in this CP pack */ |
| if (read_structure_blk(fd, cp_addr, cp_block_1, 1)) |
| goto invalid_cp1; |
| |
| /* get the version number */ |
| cp_block = (struct f2fs_checkpoint *)cp_block_1; |
| |
| cp1_version = le64_to_cpu(cp_block->checkpoint_ver); |
| |
| cp_block_2 = malloc(F2FS_BLKSIZE); |
| if (!cp_block_2) { |
| goto invalid_cp1; |
| } |
| /* Read the 2nd cp block in this CP pack */ |
| cp_addr += le32_to_cpu(cp_block->cp_pack_total_block_count) - 1; |
| if (read_structure_blk(fd, cp_addr, cp_block_2, 1)) { |
| goto invalid_cp2; |
| } |
| |
| cp_block = (struct f2fs_checkpoint *)cp_block_2; |
| |
| cp2_version = le64_to_cpu(cp_block->checkpoint_ver); |
| |
| if (cp2_version == cp1_version) { |
| *version = cp2_version; |
| free(cp_block_2); |
| return (struct f2fs_checkpoint *)cp_block_1; |
| } |
| |
| /* There must be something wrong with this checkpoint */ |
| invalid_cp2: |
| free(cp_block_2); |
| invalid_cp1: |
| free(cp_block_1); |
| return NULL; |
| } |
| |
| int get_valid_checkpoint_info(int fd, struct f2fs_super_block *sb, struct f2fs_checkpoint **cp, struct f2fs_info *info) |
| { |
| struct f2fs_checkpoint *cp_block; |
| |
| struct f2fs_checkpoint *cp1, *cp2, *cur_cp; |
| int cur_cp_no; |
| unsigned long blk_size;// = 1<<le32_to_cpu(info->sb->log_blocksize); |
| unsigned long long cp1_version = 0, cp2_version = 0; |
| unsigned long long cp1_start_blk_no; |
| unsigned long long cp2_start_blk_no; |
| u32 bmp_size; |
| |
| blk_size = 1U<<le32_to_cpu(sb->log_blocksize); |
| |
| /* |
| * Find valid cp by reading both packs and finding most recent one. |
| */ |
| cp1_start_blk_no = le32_to_cpu(sb->cp_blkaddr); |
| cp1 = validate_checkpoint(cp1_start_blk_no, &cp1_version, fd); |
| |
| /* The second checkpoint pack should start at the next segment */ |
| cp2_start_blk_no = cp1_start_blk_no + (1 << le32_to_cpu(sb->log_blocks_per_seg)); |
| cp2 = validate_checkpoint(cp2_start_blk_no, &cp2_version, fd); |
| |
| if (cp1 && cp2) { |
| if (ver_after(cp2_version, cp1_version)) { |
| cur_cp = cp2; |
| info->cp_valid_cp_blkaddr = cp2_start_blk_no; |
| free(cp1); |
| } else { |
| cur_cp = cp1; |
| info->cp_valid_cp_blkaddr = cp1_start_blk_no; |
| free(cp2); |
| } |
| } else if (cp1) { |
| cur_cp = cp1; |
| info->cp_valid_cp_blkaddr = cp1_start_blk_no; |
| } else if (cp2) { |
| cur_cp = cp2; |
| info->cp_valid_cp_blkaddr = cp2_start_blk_no; |
| } else { |
| goto fail_no_cp; |
| } |
| |
| *cp = cur_cp; |
| |
| return 0; |
| |
| fail_no_cp: |
| SLOGE("Valid Checkpoint not found!!"); |
| return -EINVAL; |
| } |
| |
| static int gather_sit_info(int fd, struct f2fs_info *info) |
| { |
| u64 num_segments = (info->total_blocks - info->main_blkaddr |
| + info->blocks_per_segment - 1) / info->blocks_per_segment; |
| u64 num_sit_blocks = (num_segments + SIT_ENTRY_PER_BLOCK - 1) / SIT_ENTRY_PER_BLOCK; |
| u64 sit_block; |
| |
| info->sit_blocks = malloc(num_sit_blocks * sizeof(struct f2fs_sit_block)); |
| if (!info->sit_blocks) |
| return -1; |
| |
| for(sit_block = 0; sit_block<num_sit_blocks; sit_block++) { |
| off64_t address = info->sit_blkaddr + sit_block; |
| |
| if (f2fs_test_bit(sit_block, info->sit_bmp)) |
| address += info->blocks_per_sit; |
| |
| SLOGD("Reading cache block starting at block %"PRIu64, address); |
| if (read_structure(fd, address * F2FS_BLKSIZE, &info->sit_blocks[sit_block], sizeof(struct f2fs_sit_block))) { |
| SLOGE("Could not read sit block at block %"PRIu64, address); |
| free(info->sit_blocks); |
| return -1; |
| } |
| } |
| return 0; |
| } |
| |
| static inline int is_set_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f) |
| { |
| unsigned int ckpt_flags = le32_to_cpu(cp->ckpt_flags); |
| return !!(ckpt_flags & f); |
| } |
| |
| static inline u64 sum_blk_addr(struct f2fs_checkpoint *cp, struct f2fs_info *info, int base, int type) |
| { |
| return info->cp_valid_cp_blkaddr + le32_to_cpu(cp->cp_pack_total_block_count) |
| - (base + 1) + type; |
| } |
| |
| static int get_sit_summary(int fd, struct f2fs_info *info, struct f2fs_checkpoint *cp) |
| { |
| char buffer[F2FS_BLKSIZE]; |
| |
| info->sit_sums = calloc(1, sizeof(struct f2fs_summary_block)); |
| if (!info->sit_sums) |
| return -1; |
| |
| /* CURSEG_COLD_DATA where the journaled SIT entries are. */ |
| if (is_set_ckpt_flags(cp, CP_COMPACT_SUM_FLAG)) { |
| if (read_structure_blk(fd, info->cp_valid_cp_blkaddr + le32_to_cpu(cp->cp_pack_start_sum), buffer, 1)) |
| return -1; |
| memcpy(&info->sit_sums->n_sits, &buffer[SUM_JOURNAL_SIZE], SUM_JOURNAL_SIZE); |
| } else { |
| u64 blk_addr; |
| if (is_set_ckpt_flags(cp, CP_UMOUNT_FLAG)) |
| blk_addr = sum_blk_addr(cp, info, NR_CURSEG_TYPE, CURSEG_COLD_DATA); |
| else |
| blk_addr = sum_blk_addr(cp, info, NR_CURSEG_DATA_TYPE, CURSEG_COLD_DATA); |
| |
| if (read_structure_blk(fd, blk_addr, buffer, 1)) |
| return -1; |
| |
| memcpy(info->sit_sums, buffer, sizeof(struct f2fs_summary_block)); |
| } |
| return 0; |
| } |
| |
| struct f2fs_info *generate_f2fs_info(int fd) |
| { |
| struct f2fs_super_block *sb = NULL; |
| struct f2fs_checkpoint *cp = NULL; |
| struct f2fs_info *info; |
| |
| info = calloc(1, sizeof(*info)); |
| if (!info) { |
| SLOGE("Out of memory!"); |
| return NULL; |
| } |
| |
| sb = malloc(sizeof(*sb)); |
| if(!sb) { |
| SLOGE("Out of memory!"); |
| free(info); |
| return NULL; |
| } |
| if (read_f2fs_sb(fd, sb)) { |
| SLOGE("Failed to read superblock"); |
| free(info); |
| free(sb); |
| return NULL; |
| } |
| dbg_print_raw_sb_info(sb); |
| |
| info->cp_blkaddr = le32_to_cpu(sb->cp_blkaddr); |
| info->sit_blkaddr = le32_to_cpu(sb->sit_blkaddr); |
| info->nat_blkaddr = le32_to_cpu(sb->nat_blkaddr); |
| info->ssa_blkaddr = le32_to_cpu(sb->ssa_blkaddr); |
| info->main_blkaddr = le32_to_cpu(sb->main_blkaddr); |
| info->block_size = F2FS_BLKSIZE; |
| info->total_blocks = sb->block_count; |
| info->blocks_per_sit = (le32_to_cpu(sb->segment_count_sit) >> 1) << le32_to_cpu(sb->log_blocks_per_seg); |
| info->blocks_per_segment = 1U << le32_to_cpu(sb->log_blocks_per_seg); |
| |
| if (get_valid_checkpoint_info(fd, sb, &cp, info)) |
| goto error; |
| dbg_print_raw_ckpt_struct(cp); |
| |
| info->total_user_used = le32_to_cpu(cp->valid_block_count); |
| |
| u32 bmp_size = le32_to_cpu(cp->sit_ver_bitmap_bytesize); |
| |
| /* get sit validity bitmap */ |
| info->sit_bmp = malloc(bmp_size); |
| if(!info->sit_bmp) { |
| SLOGE("Out of memory!"); |
| goto error; |
| } |
| |
| info->sit_bmp_size = bmp_size; |
| if (read_structure(fd, info->cp_valid_cp_blkaddr * F2FS_BLKSIZE |
| + offsetof(struct f2fs_checkpoint, sit_nat_version_bitmap), |
| info->sit_bmp, bmp_size)) { |
| SLOGE("Error getting SIT validity bitmap"); |
| goto error; |
| } |
| |
| if (gather_sit_info(fd , info)) { |
| SLOGE("Error getting SIT information"); |
| goto error; |
| } |
| if (get_sit_summary(fd, info, cp)) { |
| SLOGE("Error getting SIT entries in summary area"); |
| goto error; |
| } |
| dbg_print_info_struct(info); |
| return info; |
| error: |
| free(sb); |
| free(cp); |
| free_f2fs_info(info); |
| return NULL; |
| } |
| |
| void free_f2fs_info(struct f2fs_info *info) |
| { |
| if (info) { |
| free(info->sit_blocks); |
| info->sit_blocks = NULL; |
| |
| free(info->sit_bmp); |
| info->sit_bmp = NULL; |
| |
| free(info->sit_sums); |
| info->sit_sums = NULL; |
| } |
| free(info); |
| } |
| |
| u64 get_num_blocks_used(struct f2fs_info *info) |
| { |
| return info->main_blkaddr + info->total_user_used; |
| } |
| |
| int f2fs_test_bit(unsigned int nr, const char *p) |
| { |
| int mask; |
| char *addr = (char *)p; |
| |
| addr += (nr >> 3); |
| mask = 1 << (7 - (nr & 0x07)); |
| return (mask & *addr) != 0; |
| } |
| |
| int run_on_used_blocks(u64 startblock, struct f2fs_info *info, int (*func)(u64 pos, void *data), void *data) { |
| struct f2fs_sit_block sit_block_cache; |
| struct f2fs_sit_entry * sit_entry; |
| u64 sit_block_num_cur = 0, segnum = 0, block_offset; |
| u64 block; |
| unsigned int used, found, started = 0, i; |
| |
| for (block=startblock; block<info->total_blocks; block++) { |
| /* TODO: Save only relevant portions of metadata */ |
| if (block < info->main_blkaddr) { |
| if (func(block, data)) { |
| SLOGI("func error"); |
| return -1; |
| } |
| } else { |
| /* Main Section */ |
| segnum = (block - info->main_blkaddr)/info->blocks_per_segment; |
| |
| /* check the SIT entries in the journal */ |
| found = 0; |
| for(i = 0; i < le16_to_cpu(info->sit_sums->n_sits); i++) { |
| if (le32_to_cpu(segno_in_journal(info->sit_sums, i)) == segnum) { |
| sit_entry = &sit_in_journal(info->sit_sums, i); |
| found = 1; |
| break; |
| } |
| } |
| |
| /* get SIT entry from SIT section */ |
| if (!found) { |
| sit_block_num_cur = segnum/SIT_ENTRY_PER_BLOCK; |
| sit_entry = &info->sit_blocks[sit_block_num_cur].entries[segnum % SIT_ENTRY_PER_BLOCK]; |
| } |
| |
| block_offset = (block - info->main_blkaddr) % info->blocks_per_segment; |
| |
| used = f2fs_test_bit(block_offset, (char *)sit_entry->valid_map); |
| if(used) |
| if (func(block, data)) |
| return -1; |
| } |
| } |
| return 0; |
| } |
| |
| struct privdata |
| { |
| int count; |
| int infd; |
| int outfd; |
| char* buf; |
| char *zbuf; |
| int done; |
| struct f2fs_info *info; |
| }; |
| |
| |
| /* |
| * This is a simple test program. It performs a block to block copy of a |
| * filesystem, replacing blocks identified as unused with 0's. |
| */ |
| |
| int copy_used(u64 pos, void *data) |
| { |
| struct privdata *d = data; |
| char *buf; |
| int pdone = (pos*100)/d->info->total_blocks; |
| if (pdone > d->done) { |
| d->done = pdone; |
| printf("Done with %d percent\n", d->done); |
| } |
| |
| d->count++; |
| buf = d->buf; |
| if(read_structure_blk(d->infd, (unsigned long long)pos, d->buf, 1)) { |
| printf("Error reading!!!\n"); |
| return -1; |
| } |
| |
| off64_t ret; |
| ret = lseek64(d->outfd, pos*F2FS_BLKSIZE, SEEK_SET); |
| if (ret < 0) { |
| SLOGE("failed to seek\n"); |
| return ret; |
| } |
| |
| ret = write(d->outfd, d->buf, F2FS_BLKSIZE); |
| if (ret < 0) { |
| SLOGE("failed to write\n"); |
| return ret; |
| } |
| if (ret != F2FS_BLKSIZE) { |
| SLOGE("failed to read all\n"); |
| return -1; |
| } |
| return 0; |
| } |
| |
| int main(int argc, char **argv) |
| { |
| if (argc != 3) |
| printf("Usage: %s fs_file_in fs_file_out\n", argv[0]); |
| char *in = argv[1]; |
| char *out = argv[2]; |
| int infd, outfd; |
| |
| if ((infd = open(in, O_RDONLY)) < 0) { |
| SLOGE("Cannot open device"); |
| return 0; |
| } |
| if ((outfd = open(out, O_WRONLY|O_CREAT, S_IRUSR | S_IWUSR)) < 0) { |
| SLOGE("Cannot open output"); |
| return 0; |
| } |
| |
| struct privdata d; |
| d.infd = infd; |
| d.outfd = outfd; |
| d.count = 0; |
| struct f2fs_info *info = generate_f2fs_info(infd); |
| if (!info) { |
| printf("Failed to generate info!"); |
| return -1; |
| } |
| char *buf = malloc(F2FS_BLKSIZE); |
| char *zbuf = calloc(1, F2FS_BLKSIZE); |
| d.buf = buf; |
| d.zbuf = zbuf; |
| d.done = 0; |
| d.info = info; |
| int expected_count = get_num_blocks_used(info); |
| run_on_used_blocks(0, info, ©_used, &d); |
| printf("Copied %d blocks. Expected to copy %d\n", d.count, expected_count); |
| ftruncate64(outfd, info->total_blocks * F2FS_BLKSIZE); |
| free_f2fs_info(info); |
| free(buf); |
| free(zbuf); |
| close(infd); |
| close(outfd); |
| return 0; |
| } |
