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https://gitee.com/openharmony/third_party_f2fs-tools
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437dbf6773
This change allows for f2fs_format to work on a non-standard device (e.g. sparse-memory backed file). Removes direct access to config.fd from within f2fs_format.c. Now, f2fs_format_device() can be made to work against any device by providing f2fs_finalize_device() f2fs_trim_device() and the lib2fs.c functions ASCIIToUNICODE dev_write f2fs_cal_crc32 f2fs_set_bit log_base_2 This will allow Android's fastboot to use f2fs against a libsparse. Signed-off-by: JP Abgrall <jpa@google.com> Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
61 lines
1.3 KiB
C
61 lines
1.3 KiB
C
/**
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* f2fs_format_utils.c
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*
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* Copyright (c) 2014 Samsung Electronics Co., Ltd.
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* http://www.samsung.com/
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#define _LARGEFILE64_SOURCE
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#include <stdio.h>
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#include <unistd.h>
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#include <sys/stat.h>
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#include <linux/fs.h>
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#include "f2fs_fs.h"
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void f2fs_finalize_device()
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{
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/*
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* We should call fsync() to flush out all the dirty pages
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* in the block device page cache.
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*/
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if (fsync(config.fd) < 0)
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MSG(0, "\tError: Could not conduct fsync!!!\n");
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if (close(config.fd) < 0)
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MSG(0, "\tError: Failed to close device file!!!\n");
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}
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int f2fs_trim_device()
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{
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unsigned long long range[2];
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struct stat stat_buf;
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if (!config.trim)
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return 0;
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range[0] = 0;
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range[1] = config.total_sectors * DEFAULT_SECTOR_SIZE;
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if (fstat(config.fd, &stat_buf) < 0 ) {
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MSG(1, "\tError: Failed to get the device stat!!!\n");
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return -1;
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}
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MSG(0, "Info: Discarding device\n");
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if (S_ISREG(stat_buf.st_mode))
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return 0;
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else if (S_ISBLK(stat_buf.st_mode)) {
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if (ioctl(config.fd, BLKDISCARD, &range) < 0)
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MSG(0, "Info: This device doesn't support TRIM\n");
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} else
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return -1;
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return 0;
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}
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