1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3 * Copyright (c) 2019 Linaro Limited. All rights reserved.
4 * Author: Sumit Garg <sumit.garg@linaro.org>
5 */
6
7 /*
8 * Test syncfs
9 *
10 * It basically tests syncfs() to sync filesystem having large dirty file
11 * pages to block device. Also, it tests all supported filesystems on a test
12 * block device.
13 */
14
15 #define _GNU_SOURCE
16 #include <stdlib.h>
17 #include <stdio.h>
18 #include <sys/types.h>
19 #include "tst_test.h"
20 #include "lapi/syncfs.h"
21 #include "check_syncfs.h"
22
23 #define MNTPOINT "mnt_point"
24 #define FNAME MNTPOINT"/test"
25 #define FILE_SIZE_MB 32
26 #define FILE_SIZE (FILE_SIZE_MB * TST_MB)
27 #define MODE 0644
28
verify_syncfs(void)29 static void verify_syncfs(void)
30 {
31 int fd;
32 unsigned long written;
33
34 fd = SAFE_OPEN(FNAME, O_RDWR|O_CREAT, MODE);
35
36 tst_dev_bytes_written(tst_device->dev);
37
38 tst_fill_fd(fd, 0, TST_MB, FILE_SIZE_MB);
39
40 TEST(syncfs(fd));
41
42 if (TST_RET)
43 tst_brk(TFAIL | TTERRNO, "syncfs(fd) failed");
44
45 written = tst_dev_bytes_written(tst_device->dev);
46
47 SAFE_CLOSE(fd);
48
49 if (written >= FILE_SIZE)
50 tst_res(TPASS, "Test filesystem synced to device");
51 else
52 tst_res(TFAIL, "Synced %li, expected %i", written, FILE_SIZE);
53 }
54
setup(void)55 static void setup(void)
56 {
57 check_syncfs();
58 }
59
60 static struct tst_test test = {
61 .needs_root = 1,
62 .mount_device = 1,
63 .all_filesystems = 1,
64 .mntpoint = MNTPOINT,
65 .setup = setup,
66 .test_all = verify_syncfs,
67 };
68