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_pages02.c
27 *
28 * DESCRIPTION
29 * Test movement of pages mapped by a process.
30 *
31 * ALGORITHM
32 * 1. Allocate pages in NUMA node A.
33 * 2. Use move_pages() to move the pages to NUMA node B.
34 * 3. Retrieve the NUMA nodes of the moved pages.
35 * 4. Check if all pages are in node B.
36 *
37 * USAGE: <for command-line>
38 * move_pages02 [-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/signal.h>
54 #include <sys/types.h>
55 #include <sys/wait.h>
56 #include <errno.h>
57 #include "test.h"
58 #include "move_pages_support.h"
59
60 #define TEST_PAGES 2
61 #define TEST_NODES 2
62
63 void setup(void);
64 void cleanup(void);
65
66 char *TCID = "move_pages02";
67 int TST_TOTAL = 1;
68
main(int argc,char ** argv)69 int main(int argc, char **argv)
70 {
71
72 tst_parse_opts(argc, argv, NULL, NULL);
73
74 setup();
75
76 #ifdef HAVE_NUMA_V2
77 unsigned int i;
78 int lc;
79 unsigned int from_node;
80 unsigned int to_node;
81 int ret;
82
83 ret = get_allowed_nodes(NH_MEMS, 2, &from_node, &to_node);
84 if (ret < 0)
85 tst_brkm(TBROK | TERRNO, cleanup, "get_allowed_nodes: %d", ret);
86
87 /* check for looping state if -i option is given */
88 for (lc = 0; TEST_LOOPING(lc); lc++) {
89 void *pages[TEST_PAGES] = { 0 };
90 int nodes[TEST_PAGES];
91 int status[TEST_PAGES];
92
93 /* reset tst_count in case we are looping */
94 tst_count = 0;
95
96 ret = alloc_pages_on_node(pages, TEST_PAGES, from_node);
97 if (ret == -1)
98 continue;
99
100 for (i = 0; i < TEST_PAGES; i++)
101 nodes[i] = to_node;
102
103 ret =
104 numa_move_pages(0, TEST_PAGES, pages, nodes, status,
105 MPOL_MF_MOVE);
106 if (ret < 0) {
107 tst_resm(TFAIL|TERRNO, "move_pages failed");
108 free_pages(pages, TEST_PAGES);
109 continue;
110 } else if (ret > 0) {
111 tst_resm(TINFO, "move_pages() returned %d\n", ret);
112 }
113
114 for (i = 0; i < TEST_PAGES; i++)
115 *((char *)pages[i]) = 0xAA;
116
117 verify_pages_on_node(pages, status, TEST_PAGES, to_node);
118
119 free_pages(pages, TEST_PAGES);
120 }
121 #else
122 tst_resm(TCONF, NUMA_ERROR_MSG);
123 #endif
124
125 cleanup();
126 tst_exit();
127
128 }
129
130 /*
131 * setup() - performs all ONE TIME setup for this test
132 */
setup(void)133 void setup(void)
134 {
135
136 tst_sig(NOFORK, DEF_HANDLER, cleanup);
137
138 check_config(TEST_NODES);
139
140 /* Pause if that option was specified
141 * TEST_PAUSE contains the code to fork the test with the -c option.
142 */
143 TEST_PAUSE;
144 }
145
146 /*
147 * cleanup() - performs all ONE TIME cleanup for this test at completion
148 */
cleanup(void)149 void cleanup(void)
150 {
151
152 }
153