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_pages08.c
27 *
28 * DESCRIPTION
29 * Failure when the no. of pages is ULONG_MAX.
30 *
31 * ALGORITHM
32 *
33 * 1. Pass ULONG_MAX pages to move_pages().
34 * 2. Check if errno is set to E2BIG.
35 *
36 * USAGE: <for command-line>
37 * move_pages08 [-c n] [-i n] [-I x] [-P x] [-t]
38 * where, -c n : Run n copies concurrently.
39 * -i n : Execute test n times.
40 * -I x : Execute test for x seconds.
41 * -P x : Pause for x seconds between iterations.
42 * -t : Turn on syscall timing.
43 *
44 * History
45 * 05/2008 Vijay Kumar
46 * Initial Version.
47 *
48 * Restrictions
49 * kernel < 2.6.29
50 */
51
52 #include <sys/mman.h>
53 #include <sys/types.h>
54 #include <sys/wait.h>
55 #include <unistd.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 static void setup(void);
64 static void cleanup(void);
65
66 char *TCID = "move_pages08";
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 #if HAVE_NUMA_MOVE_PAGES
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 = numa_move_pages(0, ULONG_MAX, pages, nodes,
104 status, MPOL_MF_MOVE);
105 if (ret == -1 && errno == E2BIG)
106 tst_resm(TPASS, "move_pages failed with "
107 "E2BIG as expected");
108 else
109 tst_resm(TFAIL|TERRNO, "move pages did not fail "
110 "with E2BIG ret: %d", ret);
111
112 free_pages(pages, TEST_PAGES);
113 }
114 #else
115 tst_resm(TCONF, "move_pages support not found.");
116 #endif
117
118 cleanup();
119 tst_exit();
120
121 }
122
123 /*
124 * setup() - performs all ONE TIME setup for this test
125 */
setup(void)126 static void setup(void)
127 {
128 /*
129 * commit 3140a2273009c01c27d316f35ab76a37e105fdd8
130 * Author: Brice Goglin <Brice.Goglin@inria.fr>
131 * Date: Tue Jan 6 14:38:57 2009 -0800
132 * mm: rework do_pages_move() to work on page_sized chunks
133 *
134 * reworked do_pages_move() to work by page-sized chunks and removed E2BIG
135 */
136 if ((tst_kvercmp(2, 6, 29)) >= 0)
137 tst_brkm(TCONF, NULL, "move_pages: E2BIG was removed in "
138 "commit 3140a227");
139
140 tst_sig(FORK, DEF_HANDLER, cleanup);
141
142 check_config(TEST_NODES);
143
144 /* Pause if that option was specified
145 * TEST_PAUSE contains the code to fork the test with the -c option.
146 */
147 TEST_PAUSE;
148 }
149
150 /*
151 * cleanup() - performs all ONE TIME cleanup for this test at completion
152 */
cleanup(void)153 static void cleanup(void)
154 {
155
156 }
157