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76 lines
2.4 KiB
76 lines
2.4 KiB
/* |
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* Copyright (C) 2014 The Android Open Source Project |
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* All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions |
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* are met: |
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* * Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* * Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in |
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* the documentation and/or other materials provided with the |
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* distribution. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS |
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE |
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, |
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, |
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS |
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED |
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT |
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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* SUCH DAMAGE. |
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*/ |
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#define _LARGEFILE64_SOURCE |
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#include <fcntl.h> |
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#include <string.h> |
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#include <f2fs_fs.h> |
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#include <f2fs_format_utils.h> |
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#include <sparse/sparse.h> |
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struct selabel_handle; |
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#include "make_f2fs.h" |
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extern void flush_sparse_buffs(); |
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struct f2fs_configuration c; |
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struct sparse_file *f2fs_sparse_file; |
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extern int dlopenf2fs(); |
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static void reset_f2fs_info() { |
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memset(&c, 0, sizeof(c)); |
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if (f2fs_sparse_file) { |
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sparse_file_destroy(f2fs_sparse_file); |
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f2fs_sparse_file = NULL; |
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} |
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} |
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int make_f2fs_sparse_fd(int fd, long long len, |
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const char *mountpoint, struct selabel_handle *sehnd) |
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{ |
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if (dlopenf2fs() < 0) { |
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return -1; |
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} |
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reset_f2fs_info(); |
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f2fs_init_configuration(); |
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len &= ~((__u64)(F2FS_BLKSIZE - 1)); |
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c.sector_size = DEFAULT_SECTOR_SIZE; |
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c.total_sectors = len / c.sector_size; |
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c.start_sector = 0; |
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f2fs_sparse_file = sparse_file_new(F2FS_BLKSIZE, len); |
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f2fs_format_device(); |
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sparse_file_write(f2fs_sparse_file, fd, /*gzip*/0, /*sparse*/1, /*crc*/0); |
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sparse_file_destroy(f2fs_sparse_file); |
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flush_sparse_buffs(); |
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f2fs_sparse_file = NULL; |
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return 0; |
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}
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