1 /* 2 * Copyright (c) 2008 Vijay Kumar B. <vijaykumar (at) 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 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 */ 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 */ 167 void cleanup(void) 168 { 169 170 } 171