mirror of
https://gitee.com/openharmony/third_party_f2fs-tools
synced 2024-11-23 18:19:43 +00:00
3c160e7d11
We need to check for fallocate() rather than just linux/falloc.h + FALLOC_FL_PUNCH_HOLE since in uClibc we've got both but still not fallocate() itself since it's only implemented in newer unreleased versions. Signed-off-by: Gustavo Zacarias <gustavo@zacarias.com.ar> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
69 lines
1.4 KiB
C
69 lines
1.4 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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* Dual licensed under the GPL or LGPL version 2 licenses.
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*/
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#define _LARGEFILE_SOURCE
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#define _LARGEFILE64_SOURCE
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#ifndef _GNU_SOURCE
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#define _GNU_SOURCE
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#endif
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#include <stdio.h>
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#include <unistd.h>
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#include <sys/ioctl.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include "f2fs_fs.h"
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#ifdef HAVE_LINUX_FS_H
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#include <linux/fs.h>
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#endif
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#ifdef HAVE_LINUX_FALLOC_H
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#include <linux/falloc.h>
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#endif
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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 * config.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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#if defined(WITH_BLKDISCARD) && defined(BLKDISCARD)
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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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#if defined(HAVE_FALLOCATE) && defined(FALLOC_FL_PUNCH_HOLE)
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if (fallocate(config.fd, FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE,
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range[0], range[1]) < 0) {
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MSG(0, "Info: fallocate(PUNCH_HOLE|KEEP_SIZE) is failed\n");
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}
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#endif
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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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MSG(0, "Info: Discarded %lu sectors\n",
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config.total_sectors);
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}
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} else
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return -1;
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#endif
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return 0;
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}
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