1/*
2 * Copyright (c) Wipro Technologies Ltd, 2002.  All Rights Reserved.
3 *
4 * This program is free software; you can redistribute it and/or modify it
5 * under the terms of version 2 of the GNU General Public License as
6 * published by the Free Software Foundation.
7 *
8 * This program is distributed in the hope that it would be useful, but
9 * WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
11 *
12 * You should have received a copy of the GNU General Public License along
13 * with this program; if not, write the Free Software Foundation, Inc.,
14 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
15 *
16 */
17
18/*
19 * Check that swapoff() succeeds.
20 */
21
22#include <unistd.h>
23#include "test.h"
24#include <errno.h>
25#include <stdlib.h>
26#include "config.h"
27#include "linux_syscall_numbers.h"
28
29static void setup(void);
30static void cleanup(void);
31static void verify_swapoff(void);
32
33char *TCID = "swapoff01";
34int TST_TOTAL = 1;
35
36static long fs_type;
37
38int main(int ac, char **av)
39{
40	int lc;
41
42	tst_parse_opts(ac, av, NULL, NULL);
43
44	setup();
45
46	for (lc = 0; TEST_LOOPING(lc); lc++) {
47		tst_count = 0;
48		verify_swapoff();
49	}
50
51	cleanup();
52	tst_exit();
53}
54
55static void verify_swapoff(void)
56{
57	if (ltp_syscall(__NR_swapon, "./swapfile01", 0) != 0) {
58		if (fs_type == TST_BTRFS_MAGIC && errno == EINVAL) {
59			tst_brkm(TCONF, cleanup,
60			         "Swapfiles on BTRFS are not implemented");
61		}
62
63		tst_resm(TBROK, "Failed to turn on the swap file"
64			 ", skipping test iteration");
65		return;
66	}
67
68	TEST(ltp_syscall(__NR_swapoff, "./swapfile01"));
69
70	if (TEST_RETURN == -1) {
71		tst_resm(TFAIL | TTERRNO, "Failed to turn off swapfile,"
72		         " system reboot after execution of LTP "
73			 "test suite is recommended.");
74	} else {
75		tst_resm(TPASS, "Succeeded to turn off swapfile");
76	}
77}
78
79static void setup(void)
80{
81	tst_sig(FORK, DEF_HANDLER, cleanup);
82
83	tst_require_root();
84
85	TEST_PAUSE;
86
87	tst_tmpdir();
88
89	switch ((fs_type = tst_fs_type(cleanup, "."))) {
90	case TST_NFS_MAGIC:
91	case TST_TMPFS_MAGIC:
92		tst_brkm(TCONF, cleanup,
93			 "Cannot do swapoff on a file on %s filesystem",
94			 tst_fs_type_name(fs_type));
95	break;
96	}
97
98	if (!tst_fs_has_free(NULL, ".", 64, TST_MB)) {
99		tst_brkm(TBROK, cleanup,
100			 "Insufficient disk space to create swap file");
101	}
102
103	if (tst_fill_file("swapfile01", 0x00, 1024, 65536))
104		tst_brkm(TBROK, cleanup, "Failed to create file for swap");
105
106	if (system("mkswap swapfile01 > tmpfile 2>&1") != 0)
107		tst_brkm(TBROK, cleanup, "Failed to make swapfile");
108}
109
110static void cleanup(void)
111{
112	tst_rmdir();
113}
114