1 /*
2 * Copyright (c) 2008 Vijay Kumar B. <vijaykumar@bravegnu.org>
3 *
4 * Based on testcases/kernel/syscalls/waitpid/waitpid01.c
5 * Original copyright message:
6 *
7 * Copyright (c) International Business Machines Corp., 2001
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
13 *
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
17 * the GNU General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
22 */
23
24 /*
25 * NAME
26 * move_pages04.c
27 *
28 * DESCRIPTION
29 * Failure when page does not exit.
30 *
31 * ALGORITHM
32 *
33 * 1. Pass a page that does not exit as one of the page addresses
34 * to move_pages().
35 * 2. Check if the corresponding status is set to -ENOENT.
36 *
37 * USAGE: <for command-line>
38 * move_pages04 [-c n] [-i n] [-I x] [-P x] [-t]
39 * where, -c n : Run n copies concurrently.
40 * -i n : Execute test n times.
41 * -I x : Execute test for x seconds.
42 * -P x : Pause for x seconds between iterations.
43 * -t : Turn on syscall timing.
44 *
45 * History
46 * 05/2008 Vijay Kumar
47 * Initial Version.
48 *
49 * Restrictions
50 * None
51 */
52
53 #include <sys/mman.h>
54 #include <sys/types.h>
55 #include <sys/wait.h>
56 #include <unistd.h>
57 #include <signal.h>
58 #include <errno.h>
59 #include "test.h"
60 #include "move_pages_support.h"
61
62 #define TEST_PAGES 2
63 #define TEST_NODES 2
64 #define TOUCHED_PAGES 1
65 #define UNTOUCHED_PAGE (TEST_PAGES - 1)
66
67 void setup(void);
68 void cleanup(void);
69
70 char *TCID = "move_pages04";
71 int TST_TOTAL = 1;
72
73 typedef void (*sighandler_t) (int);
74
main(int argc,char ** argv)75 int main(int argc, char **argv)
76 {
77
78 tst_parse_opts(argc, argv, NULL, NULL);
79
80 setup();
81
82 #if HAVE_NUMA_MOVE_PAGES
83 unsigned int i;
84 int lc;
85 unsigned int from_node;
86 unsigned int to_node;
87 int ret;
88
89 ret = get_allowed_nodes(NH_MEMS, 2, &from_node, &to_node);
90 if (ret < 0)
91 tst_brkm(TBROK | TERRNO, cleanup, "get_allowed_nodes: %d", ret);
92
93 /* check for looping state if -i option is given */
94 for (lc = 0; TEST_LOOPING(lc); lc++) {
95 void *pages[TEST_PAGES] = { 0 };
96 int nodes[TEST_PAGES];
97 int status[TEST_PAGES];
98 unsigned long onepage = get_page_size();
99
100 /* reset tst_count in case we are looping */
101 tst_count = 0;
102
103 ret = alloc_pages_on_node(pages, TOUCHED_PAGES, from_node);
104 if (ret == -1)
105 continue;
106
107 /* Allocate page and do not touch it. */
108 pages[UNTOUCHED_PAGE] = numa_alloc_onnode(onepage, from_node);
109 if (pages[UNTOUCHED_PAGE] == NULL) {
110 tst_resm(TBROK, "failed allocating page on node %d",
111 from_node);
112 goto err_free_pages;
113 }
114
115 for (i = 0; i < TEST_PAGES; i++)
116 nodes[i] = to_node;
117
118 ret = numa_move_pages(0, TEST_PAGES, pages, nodes,
119 status, MPOL_MF_MOVE);
120 if (ret == -1) {
121 tst_resm(TFAIL | TERRNO,
122 "move_pages unexpectedly failed");
123 goto err_free_pages;
124 }
125
126 if (status[UNTOUCHED_PAGE] == -ENOENT)
127 tst_resm(TPASS, "status[%d] set to expected -ENOENT",
128 UNTOUCHED_PAGE);
129 else
130 tst_resm(TFAIL, "status[%d] is %d", UNTOUCHED_PAGE,
131 status[UNTOUCHED_PAGE]);
132
133 err_free_pages:
134 /* This is capable of freeing both the touched and
135 * untouched pages.
136 */
137 free_pages(pages, TEST_PAGES);
138 }
139 #else
140 tst_resm(TCONF, "move_pages support not found.");
141 #endif
142
143 cleanup();
144 tst_exit();
145
146 }
147
148 /*
149 * setup() - performs all ONE TIME setup for this test
150 */
setup(void)151 void setup(void)
152 {
153
154 tst_sig(FORK, DEF_HANDLER, cleanup);
155
156 check_config(TEST_NODES);
157
158 /* Pause if that option was specified
159 * TEST_PAUSE contains the code to fork the test with the -c option.
160 */
161 TEST_PAUSE;
162 }
163
164 /*
165 * cleanup() - performs all ONE TIME cleanup for this test at completion
166 */
cleanup(void)167 void cleanup(void)
168 {
169
170 }
171