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/**
* f2fs_format_utils.c
*
* Copyright (c) 2014 Samsung Electronics Co., Ltd.
* http://www.samsung.com/
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#define _LARGEFILE64_SOURCE
#include <stdio.h>
#include <unistd.h>
#include <sys/ioctl.h>
#include <sys/stat.h>
#include <linux/fs.h>
#include "include/f2fs_fs.h"
void f2fs_finalize_device()
{
/*
* We should call fsync() to flush out all the dirty pages
* in the block device page cache.
*/
if (fsync(config.fd) < 0)
MSG(0, "\tError: Could not conduct fsync!!!\n");
if (close(config.fd) < 0)
MSG(0, "\tError: Failed to close device file!!!\n");
}
int f2fs_trim_device()
{
unsigned long long range[2];
struct stat stat_buf;
if (!config.trim)
return 0;
range[0] = 0;
range[1] = config.total_sectors * DEFAULT_SECTOR_SIZE;
if (fstat(config.fd, &stat_buf) < 0 ) {
MSG(1, "\tError: Failed to get the device stat!!!\n");
return -1;
}
MSG(0, "Info: Discarding device\n");
if (S_ISREG(stat_buf.st_mode))
return 0;
else if (S_ISBLK(stat_buf.st_mode)) {
if (ioctl(config.fd, BLKDISCARD, &range) < 0)
MSG(0, "Info: This device doesn't support TRIM\n");
} else
return -1;
return 0;
}
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