4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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13 * General Public License version 2 for more details (a copy is included
14 * in the LICENSE file that accompanied this code).
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17 * version 2 along with this program; If not, see
18 * http://www.gnu.org/licenses/gpl-2.0.html
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24 * Use is subject to license terms.
26 * Copyright (c) 2015, Intel Corporation.
28 * Copyright (c) 2019, Whamcloud.
31 * This file is part of Lustre, http://www.lustre.org/
39 #include <sys/types.h>
48 " mknod, truncate to larger size, open, and mmap file";
50 int main(int argc, char **argv)
56 fprintf(stderr, usage, argv[0]);
60 /* Create file without striping */
61 rc = mknod(argv[1], S_IFREG | 0666, 0);
68 /* use truncate to extend file size */
69 rc = truncate(argv[1], 4096);
76 rc = open(argv[1], O_RDONLY);
83 /* mmap of file without striping should work */
84 mmappedData = mmap(NULL, 4096, PROT_READ,
86 if (mmappedData == MAP_FAILED) {