1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3 * Copyright (c) 2016 Linux Test Project
4 * Copyright (C) 2021 SUSE LLC Andrea Cervesato <[email protected]>
5 */
6 #define _GNU_SOURCE
7
8 #include <stdlib.h>
9 #include <sys/mount.h>
10 #include <stdint.h>
11 #include <stdio.h>
12 #include <lapi/loop.h>
13 #include <time.h>
14
15 #include "tst_test.h"
16
17 #define DEVBLOCKSIZE 2048
18 #define DEV_MIN_SIZE 310
19
20 static char *mntpoint;
21 static uint64_t ltp_dev_size;
22
set_block_size(int fd)23 static int set_block_size(int fd)
24 {
25 return ioctl(fd, LOOP_SET_BLOCK_SIZE, DEVBLOCKSIZE);
26 }
27
setup(void)28 static void setup(void)
29 {
30 int fd;
31 int ret;
32
33 ret = asprintf(&mntpoint, "%s/mnt", tst_get_tmpdir());
34 if (ret < 0)
35 tst_brk(TBROK, "asprintf failure");
36
37 fd = SAFE_OPEN(tst_device->dev, O_RDONLY);
38
39 SAFE_IOCTL(fd, BLKGETSIZE64, <p_dev_size);
40
41 TST_RETRY_FN_EXP_BACKOFF(set_block_size(fd), TST_RETVAL_EQ0, 10);
42
43 SAFE_CLOSE(fd);
44
45 SAFE_MKFS(tst_device->dev, tst_device->fs_type, NULL, NULL);
46
47 SAFE_MKDIR(mntpoint, 0777);
48 SAFE_MOUNT(tst_device->dev, mntpoint, tst_device->fs_type, 0, 0);
49 }
50
cleanup(void)51 static void cleanup(void)
52 {
53 if (tst_is_mounted(mntpoint))
54 SAFE_UMOUNT(mntpoint);
55 }
56
test_dev_min_size(void)57 static void test_dev_min_size(void)
58 {
59 uint64_t size;
60
61 size = ltp_dev_size / 1024 / 1024;
62
63 if (size == DEV_MIN_SIZE)
64 tst_res(TPASS, "Got expected device size %lu", size);
65 else
66 tst_res(TFAIL, "Expected device size is %d but got %lu",
67 DEV_MIN_SIZE, size);
68 }
69
test_tst_find_backing_dev(void)70 static void test_tst_find_backing_dev(void)
71 {
72 char block_dev[100];
73
74 tst_find_backing_dev(mntpoint, block_dev, sizeof(block_dev));
75
76 if (!strcmp(tst_device->dev, block_dev))
77 tst_res(TPASS, "%s belongs to %s block dev", mntpoint,
78 block_dev);
79 else
80 tst_res(TFAIL, "%s should belong to %s, but %s is returned",
81 mntpoint, tst_device->dev, block_dev);
82 }
83
test_tst_dev_block_size(void)84 static void test_tst_dev_block_size(void)
85 {
86 int block_size;
87
88 block_size = tst_dev_block_size(mntpoint);
89
90 if (block_size == DEVBLOCKSIZE)
91 tst_res(TPASS, "%s has %d block size", mntpoint, block_size);
92 else
93 tst_res(TFAIL, "%s has %d block size, but expected is %i",
94 mntpoint, block_size, DEVBLOCKSIZE);
95 }
96
do_test(void)97 static void do_test(void)
98 {
99 test_dev_min_size();
100 test_tst_find_backing_dev();
101 test_tst_dev_block_size();
102 }
103
104 static struct tst_test test = {
105 .needs_root = 1,
106 .needs_device = 1,
107 .dev_min_size = DEV_MIN_SIZE,
108 .test_all = do_test,
109 .setup = setup,
110 .cleanup = cleanup,
111 .min_kver = "4.14",
112 };
113