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_sync(fd);
37 tst_dev_bytes_written(tst_device->dev);
38
39 tst_fill_fd(fd, 0, TST_MB, FILE_SIZE_MB);
40
41 TEST(syncfs(fd));
42
43 if (TST_RET)
44 tst_brk(TFAIL | TTERRNO, "syncfs(fd) failed");
45
46 written = tst_dev_bytes_written(tst_device->dev);
47
48 SAFE_CLOSE(fd);
49
50 if (written >= FILE_SIZE)
51 tst_res(TPASS, "Test filesystem synced to device");
52 else
53 tst_res(TFAIL, "Synced %li, expected %i", written, FILE_SIZE);
54 }
55
setup(void)56 static void setup(void)
57 {
58 check_syncfs();
59 }
60
61 static struct tst_test test = {
62 .needs_root = 1,
63 .mount_device = 1,
64 .all_filesystems = 1,
65 .skip_filesystems = (const char*[]) {
66 "tmpfs",
67 NULL
68 },
69 .mntpoint = MNTPOINT,
70 .setup = setup,
71 .test_all = verify_syncfs,
72 };
73