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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