4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 only,
8 * as published by the Free Software Foundation.
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License version 2 for more details (a copy is included
14 * in the LICENSE file that accompanied this code).
16 * You should have received a copy of the GNU General Public License
17 * version 2 along with this program; if not, write to the
18 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
19 * Boston, MA 021110-1307, USA
24 * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
25 * Use is subject to license terms.
27 * Copyright (c) 2012, Whamcloud, Inc.
30 * This file is part of Lustre, http://www.lustre.org/
31 * Lustre is a trademark of Sun Microsystems, Inc.
37 #include <sys/types.h>
46 #include <libcfs/libcfs.h>
47 #include <lustre/lustreapi.h>
53 #define ACT_READHOLE 8
58 printf("usage: rwv -f filename <-r|-w> [-a] [-z] [-d] [-v]"
59 "[-s offset] -n iovcnt SIZE1 SIZE2 SIZE3...\n");
60 printf("-a append IO (O_APPEND)\n");
61 printf("-r file read (O_RDONLY)\n");
62 printf("-w file write (O_WRONLY)\n");
63 printf("-s set the start pos of the read/write test\n");
64 printf("-z test for read hitting hole\n");
65 printf("-d create flags (O_LOV_DELAY_CREATE)\n");
66 printf("-v verify the data content of read\n");
69 int data_verify(struct iovec *iov, int iovcnt, char c)
73 for (i = 0; i < iovcnt; i++) {
74 size_t count = iov[i].iov_len;
75 char *s = iov[i].iov_base;
77 for (; count > 0; ++s, count--) {
79 printf("Data mismatch %x: %x\n", *s, c);
87 int main(int argc, char** argv)
98 unsigned long len = 0;
102 while ((c = getopt(argc, argv, "f:n:s:rwahvdz")) != -1) {
108 iovcnt = strtoul(optarg, &end, 0);
110 printf("Bad iov count: %s\n", optarg);
113 if (iovcnt > UIO_MAXIOV || iovcnt <= 0) {
114 printf("Wrong iov count\n");
120 offset = strtoull(optarg, &end, 0);
122 printf("Bad seek offset: %s\n", optarg);
136 flags |= O_LOV_DELAY_CREATE;
151 if (act == ACT_NONE) {
156 if ((act & ACT_READ) && (act & ACT_WRITE)) {
157 printf("Read and write test should be exclusive\n");
161 if (argc - optind < iovcnt) {
162 printf("Not enough parameters for iov size\n");
166 iov = (struct iovec *)malloc(iovcnt * sizeof(struct iovec));
168 printf("No memory %s\n", strerror(errno));
172 for (c = 0; c < iovcnt; c++) {
173 struct iovec *iv = &iov[c];
175 iv->iov_len = strtoul(argv[optind++], &end, 0);
177 printf("Error iov size\n");
180 iv->iov_base = mmap(NULL, iv->iov_len, PROT_READ | PROT_WRITE,
181 MAP_PRIVATE | MAP_ANON, 0, 0);
182 if (iv->iov_base == MAP_FAILED) {
183 printf("No memory %s\n", strerror(errno));
187 memset(iv->iov_base, pad, iv->iov_len);
191 fd = open(fname, O_LARGEFILE | O_RDWR | O_CREAT | flags, 0644);
193 printf("Cannot open %s:%s\n", fname, strerror(errno));
197 if ((act & ACT_SEEK) && (lseek64(fd, offset, SEEK_SET) < 0)) {
198 printf("Cannot seek %s\n", strerror(errno));
202 if (act & ACT_WRITE) {
203 rc = writev(fd, iov, iovcnt);
205 printf("Write error: %s (rc = %d, len = %ld)\n",
206 strerror(errno), rc, len);
209 } else if (act & ACT_READ) {
210 rc = readv(fd, iov, iovcnt);
212 printf("Read error: %s rc = %d\n", strerror(errno), rc);
216 /* It should return zeroed buf if the read hits hole.*/
217 if (((act & ACT_READHOLE) || (act & ACT_VERIFY)) &&
218 data_verify(iov, iovcnt, pad))