blob: 57553c962ce9fdc65429207231c3dcd786bb9a13 [file] [log] [blame]
Jens Axboe53cdc682006-10-18 11:50:58 +02001#include <unistd.h>
2#include <fcntl.h>
3#include <string.h>
4#include <assert.h>
Jens Axboebbf6b542007-03-13 15:28:55 +01005#include <dirent.h>
YAMAMOTO Takashid74ac842010-06-09 09:44:53 +02006#include <libgen.h>
Jens Axboe53cdc682006-10-18 11:50:58 +02007#include <sys/stat.h>
8#include <sys/mman.h>
Jens Axboebbf6b542007-03-13 15:28:55 +01009#include <sys/types.h>
Jens Axboe53cdc682006-10-18 11:50:58 +020010
11#include "fio.h"
Jens Axboef17c4392008-03-01 18:40:46 +010012#include "smalloc.h"
Jens Axboe4906e0b2008-03-01 18:59:51 +010013#include "filehash.h"
Bruce Cranecc314b2011-01-04 10:59:30 +010014#include "os/os.h"
Jens Axboe23162962012-11-07 19:47:47 +010015#include "hash.h"
Jens Axboe7ebd7962012-11-28 21:24:46 +010016#include "lib/axmap.h"
Jens Axboe53cdc682006-10-18 11:50:58 +020017
Jens Axboe97ac9922013-01-24 15:00:25 -070018#ifdef CONFIG_LINUX_FALLOCATE
Eric Gourioua596f042011-06-17 09:11:45 +020019#include <linux/falloc.h>
20#endif
21
Jens Axboe7172cfe2007-07-23 14:36:00 +020022static int root_warn;
23
Jens Axboec592b9f2009-06-03 09:29:28 +020024static inline void clear_error(struct thread_data *td)
25{
26 td->error = 0;
27 td->verror[0] = '\0';
28}
29
Jens Axboe3baddf22008-04-04 11:10:30 +020030/*
31 * Leaves f->fd open on success, caller must close
32 */
Jens Axboe7bb48f82007-03-27 15:30:28 +020033static int extend_file(struct thread_data *td, struct fio_file *f)
Jens Axboe25205e92006-10-19 20:50:14 +020034{
Jens Axboeea443652007-03-29 14:52:13 +020035 int r, new_layout = 0, unlink_file = 0, flags;
Jens Axboe25205e92006-10-19 20:50:14 +020036 unsigned long long left;
37 unsigned int bs;
38 char *b;
Jens Axboeb2a15192006-10-18 14:10:42 +020039
Jens Axboe4241ea82007-09-12 08:18:36 +020040 if (read_only) {
41 log_err("fio: refusing extend of file due to read-only\n");
42 return 0;
43 }
44
Jens Axboe507a7022007-03-27 15:52:46 +020045 /*
46 * check if we need to lay the file out complete again. fio
47 * does that for operations involving reads, or for writes
48 * where overwrite is set
49 */
Jens Axboeffdfabd2008-03-26 09:18:14 +010050 if (td_read(td) || (td_write(td) && td->o.overwrite) ||
51 (td_write(td) && td->io_ops->flags & FIO_NOEXTEND))
Jens Axboe507a7022007-03-27 15:52:46 +020052 new_layout = 1;
Jens Axboeea443652007-03-29 14:52:13 +020053 if (td_write(td) && !td->o.overwrite)
54 unlink_file = 1;
Jens Axboe507a7022007-03-27 15:52:46 +020055
Jens Axboe6ae1f572008-02-21 10:20:00 +010056 if (unlink_file || new_layout) {
Jens Axboebd199f22008-03-26 09:57:18 +010057 dprint(FD_FILE, "layout unlink %s\n", f->file_name);
Zhang, Yanmin982016d2008-02-26 15:35:52 +010058 if ((unlink(f->file_name) < 0) && (errno != ENOENT)) {
Jens Axboe7bb48f82007-03-27 15:30:28 +020059 td_verror(td, errno, "unlink");
60 return 1;
61 }
62 }
63
Jens Axboe507a7022007-03-27 15:52:46 +020064 flags = O_WRONLY | O_CREAT;
65 if (new_layout)
66 flags |= O_TRUNC;
67
Jens Axboeee56ad52008-02-01 10:30:20 +010068 dprint(FD_FILE, "open file %s, flags %x\n", f->file_name, flags);
Jens Axboe507a7022007-03-27 15:52:46 +020069 f->fd = open(f->file_name, flags, 0644);
Jens Axboe53cdc682006-10-18 11:50:58 +020070 if (f->fd < 0) {
Jens Axboee1161c32007-02-22 19:36:48 +010071 td_verror(td, errno, "open");
Jens Axboe53cdc682006-10-18 11:50:58 +020072 return 1;
73 }
74
Jens Axboe97ac9922013-01-24 15:00:25 -070075#ifdef CONFIG_POSIX_FALLOCATE
Eric Gourioua596f042011-06-17 09:11:45 +020076 if (!td->o.fill_device) {
77 switch (td->o.fallocate_mode) {
78 case FIO_FALLOCATE_NONE:
79 break;
80 case FIO_FALLOCATE_POSIX:
81 dprint(FD_FILE, "posix_fallocate file %s size %llu\n",
Jens Axboe4b91ee82013-02-25 10:18:33 +010082 f->file_name,
83 (unsigned long long) f->real_file_size);
Jens Axboe7bc8c2c2010-01-28 11:31:31 +010084
Eric Gourioua596f042011-06-17 09:11:45 +020085 r = posix_fallocate(f->fd, 0, f->real_file_size);
86 if (r > 0) {
87 log_err("fio: posix_fallocate fails: %s\n",
88 strerror(r));
89 }
90 break;
Jens Axboe97ac9922013-01-24 15:00:25 -070091#ifdef CONFIG_LINUX_FALLOCATE
Eric Gourioua596f042011-06-17 09:11:45 +020092 case FIO_FALLOCATE_KEEP_SIZE:
93 dprint(FD_FILE,
94 "fallocate(FALLOC_FL_KEEP_SIZE) "
Jens Axboe4b91ee82013-02-25 10:18:33 +010095 "file %s size %llu\n", f->file_name,
96 (unsigned long long) f->real_file_size);
Eric Gourioua596f042011-06-17 09:11:45 +020097
98 r = fallocate(f->fd, FALLOC_FL_KEEP_SIZE, 0,
99 f->real_file_size);
100 if (r != 0) {
101 td_verror(td, errno, "fallocate");
102 }
103 break;
Jens Axboe97ac9922013-01-24 15:00:25 -0700104#endif /* CONFIG_LINUX_FALLOCATE */
Eric Gourioua596f042011-06-17 09:11:45 +0200105 default:
106 log_err("fio: unknown fallocate mode: %d\n",
107 td->o.fallocate_mode);
108 assert(0);
Jens Axboe7bc8c2c2010-01-28 11:31:31 +0100109 }
110 }
Jens Axboe97ac9922013-01-24 15:00:25 -0700111#endif /* CONFIG_POSIX_FALLOCATE */
Bruce Cran9b836562011-01-08 19:49:54 +0100112
Shawn Lewisfc74ac12008-01-11 09:45:11 +0100113 if (!new_layout)
114 goto done;
115
Jens Axboe5e0074c2009-06-02 21:40:09 +0200116 /*
117 * The size will be -1ULL when fill_device is used, so don't truncate
118 * or fallocate this file, just write it
119 */
120 if (!td->o.fill_device) {
121 dprint(FD_FILE, "truncate file %s, size %llu\n", f->file_name,
Jens Axboe4b91ee82013-02-25 10:18:33 +0100122 (unsigned long long) f->real_file_size);
Jens Axboe5e0074c2009-06-02 21:40:09 +0200123 if (ftruncate(f->fd, f->real_file_size) == -1) {
124 td_verror(td, errno, "ftruncate");
125 goto err;
126 }
Jens Axboe5e0074c2009-06-02 21:40:09 +0200127 }
Jens Axboe40f82982006-10-25 11:21:05 +0200128
Jens Axboe2dc1bbe2007-03-15 15:01:33 +0100129 b = malloc(td->o.max_bs[DDIR_WRITE]);
130 memset(b, 0, td->o.max_bs[DDIR_WRITE]);
Jens Axboe53cdc682006-10-18 11:50:58 +0200131
Jens Axboe7bb48f82007-03-27 15:30:28 +0200132 left = f->real_file_size;
Jens Axboe53cdc682006-10-18 11:50:58 +0200133 while (left && !td->terminate) {
Jens Axboe2dc1bbe2007-03-15 15:01:33 +0100134 bs = td->o.max_bs[DDIR_WRITE];
Jens Axboe53cdc682006-10-18 11:50:58 +0200135 if (bs > left)
136 bs = left;
137
138 r = write(f->fd, b, bs);
139
Jens Axboe5e0074c2009-06-02 21:40:09 +0200140 if (r > 0) {
141 left -= r;
Jens Axboe53cdc682006-10-18 11:50:58 +0200142 continue;
143 } else {
Jens Axboe5e0074c2009-06-02 21:40:09 +0200144 if (r < 0) {
145 int __e = errno;
146
147 if (__e == ENOSPC) {
148 if (td->o.fill_device)
149 break;
150 log_info("fio: ENOSPC on laying out "
151 "file, stopping\n");
152 break;
153 }
Jens Axboee1161c32007-02-22 19:36:48 +0100154 td_verror(td, errno, "write");
Jens Axboe5e0074c2009-06-02 21:40:09 +0200155 } else
Jens Axboee1161c32007-02-22 19:36:48 +0100156 td_verror(td, EIO, "write");
Jens Axboe53cdc682006-10-18 11:50:58 +0200157
158 break;
159 }
160 }
161
Jens Axboeffdfabd2008-03-26 09:18:14 +0100162 if (td->terminate) {
163 dprint(FD_FILE, "terminate unlink %s\n", f->file_name);
Jens Axboe53cdc682006-10-18 11:50:58 +0200164 unlink(f->file_name);
Jens Axboeffdfabd2008-03-26 09:18:14 +0100165 } else if (td->o.create_fsync) {
Jens Axboe98e1ac42008-03-06 11:56:48 +0100166 if (fsync(f->fd) < 0) {
167 td_verror(td, errno, "fsync");
168 goto err;
169 }
170 }
Jens Axboe0d1cd202009-06-05 22:11:52 +0200171 if (td->o.fill_device && !td_write(td)) {
Jens Axboed6aed792009-06-03 08:41:15 +0200172 fio_file_clear_size_known(f);
Jens Axboe5e0074c2009-06-02 21:40:09 +0200173 if (td_io_get_file_size(td, f))
174 goto err;
175 if (f->io_size > f->real_file_size)
176 f->io_size = f->real_file_size;
177 }
Jens Axboe53cdc682006-10-18 11:50:58 +0200178
179 free(b);
Jens Axboe507a7022007-03-27 15:52:46 +0200180done:
Jens Axboe53cdc682006-10-18 11:50:58 +0200181 return 0;
182err:
183 close(f->fd);
184 f->fd = -1;
185 return 1;
186}
187
Zhang, Yanminafad68f2009-05-20 11:30:55 +0200188static int pre_read_file(struct thread_data *td, struct fio_file *f)
189{
Jens Axboeb0f65862009-05-20 11:52:15 +0200190 int r, did_open = 0, old_runstate;
Zhang, Yanminafad68f2009-05-20 11:30:55 +0200191 unsigned long long left;
192 unsigned int bs;
193 char *b;
194
Jens Axboe9c0d2242009-07-01 12:26:28 +0200195 if (td->io_ops->flags & FIO_PIPEIO)
196 return 0;
197
Jens Axboed6aed792009-06-03 08:41:15 +0200198 if (!fio_file_open(f)) {
Jens Axboeb0f65862009-05-20 11:52:15 +0200199 if (td->io_ops->open_file(td, f)) {
200 log_err("fio: cannot pre-read, failed to open file\n");
201 return 1;
202 }
203 did_open = 1;
204 }
205
206 old_runstate = td->runstate;
207 td_set_runstate(td, TD_PRE_READING);
208
Zhang, Yanminafad68f2009-05-20 11:30:55 +0200209 bs = td->o.max_bs[DDIR_READ];
210 b = malloc(bs);
211 memset(b, 0, bs);
212
213 lseek(f->fd, f->file_offset, SEEK_SET);
214 left = f->io_size;
215
216 while (left && !td->terminate) {
217 if (bs > left)
218 bs = left;
219
220 r = read(f->fd, b, bs);
221
222 if (r == (int) bs) {
223 left -= bs;
224 continue;
225 } else {
226 td_verror(td, EIO, "pre_read");
227 break;
228 }
229 }
230
Jens Axboeb0f65862009-05-20 11:52:15 +0200231 td_set_runstate(td, old_runstate);
232
233 if (did_open)
234 td->io_ops->close_file(td, f);
Zhang, Yanminafad68f2009-05-20 11:30:55 +0200235 free(b);
236 return 0;
237}
238
Jens Axboe7bb48f82007-03-27 15:30:28 +0200239static unsigned long long get_rand_file_size(struct thread_data *td)
Jens Axboe9c60ce62007-03-15 09:14:47 +0100240{
Jens Axboedc873b62008-06-04 20:13:04 +0200241 unsigned long long ret, sized;
Jens Axboe1294c3e2011-05-11 08:15:18 +0200242 unsigned long r;
Jens Axboe9c60ce62007-03-15 09:14:47 +0100243
Jens Axboe4c07ad82011-03-28 09:51:09 +0200244 if (td->o.use_os_rand) {
245 r = os_random_long(&td->file_size_state);
246 sized = td->o.file_size_high - td->o.file_size_low;
247 ret = (unsigned long long) ((double) sized * (r / (OS_RAND_MAX + 1.0)));
248 } else {
249 r = __rand(&td->__file_size_state);
250 sized = td->o.file_size_high - td->o.file_size_low;
251 ret = (unsigned long long) ((double) sized * (r / (FRAND_MAX + 1.0)));
252 }
253
Jens Axboe5ec10ea2008-03-06 15:42:00 +0100254 ret += td->o.file_size_low;
Jens Axboe2dc1bbe2007-03-15 15:01:33 +0100255 ret -= (ret % td->o.rw_min_bs);
Jens Axboe9c60ce62007-03-15 09:14:47 +0100256 return ret;
257}
258
Jens Axboe53cdc682006-10-18 11:50:58 +0200259static int file_size(struct thread_data *td, struct fio_file *f)
260{
261 struct stat st;
262
Jens Axboedf9c26b2009-03-05 10:13:58 +0100263 if (stat(f->file_name, &st) == -1) {
Jens Axboe7bb48f82007-03-27 15:30:28 +0200264 td_verror(td, errno, "fstat");
265 return 1;
266 }
Jens Axboe53cdc682006-10-18 11:50:58 +0200267
Jens Axboe7bb48f82007-03-27 15:30:28 +0200268 f->real_file_size = st.st_size;
Jens Axboe53cdc682006-10-18 11:50:58 +0200269 return 0;
270}
271
272static int bdev_size(struct thread_data *td, struct fio_file *f)
273{
Bruce Cran9b836562011-01-08 19:49:54 +0100274 unsigned long long bytes = 0;
Jens Axboe53cdc682006-10-18 11:50:58 +0200275 int r;
276
Jens Axboedf9c26b2009-03-05 10:13:58 +0100277 if (td->io_ops->open_file(td, f)) {
278 log_err("fio: failed opening blockdev %s for size check\n",
279 f->file_name);
280 return 1;
281 }
282
Bruce Cranecc314b2011-01-04 10:59:30 +0100283 r = blockdev_size(f, &bytes);
Jens Axboe53cdc682006-10-18 11:50:58 +0200284 if (r) {
Jens Axboee1161c32007-02-22 19:36:48 +0100285 td_verror(td, r, "blockdev_size");
Jens Axboedf9c26b2009-03-05 10:13:58 +0100286 goto err;
Jens Axboe53cdc682006-10-18 11:50:58 +0200287 }
288
Jens Axboe7ab077a2009-02-02 15:07:37 +0100289 if (!bytes) {
290 log_err("%s: zero sized block device?\n", f->file_name);
Jens Axboedf9c26b2009-03-05 10:13:58 +0100291 goto err;
Jens Axboe7ab077a2009-02-02 15:07:37 +0100292 }
293
Jens Axboe53cdc682006-10-18 11:50:58 +0200294 f->real_file_size = bytes;
Jens Axboe22a57ba2009-06-09 14:34:35 +0200295 td->io_ops->close_file(td, f);
Jens Axboe53cdc682006-10-18 11:50:58 +0200296 return 0;
Jens Axboedf9c26b2009-03-05 10:13:58 +0100297err:
298 td->io_ops->close_file(td, f);
299 return 1;
Jens Axboe53cdc682006-10-18 11:50:58 +0200300}
301
Jens Axboe4ccdccd2010-06-24 10:27:22 +0200302static int char_size(struct thread_data *td, struct fio_file *f)
303{
304#ifdef FIO_HAVE_CHARDEV_SIZE
Bruce Cran9b836562011-01-08 19:49:54 +0100305 unsigned long long bytes = 0;
Jens Axboe4ccdccd2010-06-24 10:27:22 +0200306 int r;
307
308 if (td->io_ops->open_file(td, f)) {
309 log_err("fio: failed opening blockdev %s for size check\n",
310 f->file_name);
311 return 1;
312 }
313
Bruce Cranecc314b2011-01-04 10:59:30 +0100314 r = chardev_size(f, &bytes);
Jens Axboe4ccdccd2010-06-24 10:27:22 +0200315 if (r) {
316 td_verror(td, r, "chardev_size");
317 goto err;
318 }
319
320 if (!bytes) {
321 log_err("%s: zero sized char device?\n", f->file_name);
322 goto err;
323 }
324
325 f->real_file_size = bytes;
326 td->io_ops->close_file(td, f);
327 return 0;
328err:
329 td->io_ops->close_file(td, f);
330 return 1;
331#else
332 f->real_file_size = -1ULL;
333 return 0;
334#endif
335}
336
Jens Axboe53cdc682006-10-18 11:50:58 +0200337static int get_file_size(struct thread_data *td, struct fio_file *f)
338{
339 int ret = 0;
340
Jens Axboed6aed792009-06-03 08:41:15 +0200341 if (fio_file_size_known(f))
Jens Axboe409b3412007-03-28 09:57:01 +0200342 return 0;
343
Jens Axboe7bb48f82007-03-27 15:30:28 +0200344 if (f->filetype == FIO_TYPE_FILE)
345 ret = file_size(td, f);
346 else if (f->filetype == FIO_TYPE_BD)
Jens Axboe53cdc682006-10-18 11:50:58 +0200347 ret = bdev_size(td, f);
Jens Axboe4ccdccd2010-06-24 10:27:22 +0200348 else if (f->filetype == FIO_TYPE_CHAR)
349 ret = char_size(td, f);
Jens Axboe53cdc682006-10-18 11:50:58 +0200350 else
351 f->real_file_size = -1;
352
353 if (ret)
354 return ret;
355
356 if (f->file_offset > f->real_file_size) {
Bruce Cran0f2152c2010-12-15 10:33:03 +0100357 log_err("%s: offset extends end (%llu > %llu)\n", td->o.name,
Jens Axboe5ec10ea2008-03-06 15:42:00 +0100358 f->file_offset, f->real_file_size);
Jens Axboe53cdc682006-10-18 11:50:58 +0200359 return 1;
360 }
361
Jens Axboed6aed792009-06-03 08:41:15 +0200362 fio_file_set_size_known(f);
Jens Axboe53cdc682006-10-18 11:50:58 +0200363 return 0;
364}
365
Jens Axboe3baddf22008-04-04 11:10:30 +0200366static int __file_invalidate_cache(struct thread_data *td, struct fio_file *f,
367 unsigned long long off,
368 unsigned long long len)
Jens Axboee5b401d2006-10-18 16:03:40 +0200369{
370 int ret = 0;
371
Jens Axboe5e0074c2009-06-02 21:40:09 +0200372 if (len == -1ULL)
Jens Axboe3baddf22008-04-04 11:10:30 +0200373 len = f->io_size;
374 if (off == -1ULL)
375 off = f->file_offset;
Jens Axboeee56ad52008-02-01 10:30:20 +0100376
Jens Axboe0d1cd202009-06-05 22:11:52 +0200377 if (len == -1ULL || off == -1ULL)
378 return 0;
379
Jens Axboe3baddf22008-04-04 11:10:30 +0200380 dprint(FD_IO, "invalidate cache %s: %llu/%llu\n", f->file_name, off,
381 len);
Jens Axboeb5af8292007-03-08 12:43:13 +0100382
Jens Axboee5b401d2006-10-18 16:03:40 +0200383 /*
384 * FIXME: add blockdev flushing too
385 */
Jens Axboea1c58072009-08-04 23:17:02 +0200386 if (f->mmap_ptr) {
Bruce Cran03e20d62011-01-02 20:14:54 +0100387 ret = posix_madvise(f->mmap_ptr, f->mmap_sz, POSIX_MADV_DONTNEED);
Jens Axboea1c58072009-08-04 23:17:02 +0200388#ifdef FIO_MADV_FREE
Bruce Cran03e20d62011-01-02 20:14:54 +0100389 (void) posix_madvise(f->mmap_ptr, f->mmap_sz, FIO_MADV_FREE);
Jens Axboea1c58072009-08-04 23:17:02 +0200390#endif
391 } else if (f->filetype == FIO_TYPE_FILE) {
Bruce Cranecc314b2011-01-04 10:59:30 +0100392 ret = posix_fadvise(f->fd, off, len, POSIX_FADV_DONTNEED);
Jens Axboe5ec10ea2008-03-06 15:42:00 +0100393 } else if (f->filetype == FIO_TYPE_BD) {
Bruce Cranecc314b2011-01-04 10:59:30 +0100394 ret = blockdev_invalidate_cache(f);
Jens Axboe7e0e25c2007-03-27 12:49:56 +0200395 if (ret < 0 && errno == EACCES && geteuid()) {
Jens Axboe7172cfe2007-07-23 14:36:00 +0200396 if (!root_warn) {
Jens Axboe5ec10ea2008-03-06 15:42:00 +0100397 log_err("fio: only root may flush block "
398 "devices. Cache flush bypassed!\n");
Jens Axboe7172cfe2007-07-23 14:36:00 +0200399 root_warn = 1;
400 }
Jens Axboe7e0e25c2007-03-27 12:49:56 +0200401 ret = 0;
402 }
Jens Axboeb5605e92007-04-16 20:42:33 +0200403 } else if (f->filetype == FIO_TYPE_CHAR || f->filetype == FIO_TYPE_PIPE)
Jens Axboee5b401d2006-10-18 16:03:40 +0200404 ret = 0;
405
406 if (ret < 0) {
Jens Axboee1161c32007-02-22 19:36:48 +0100407 td_verror(td, errno, "invalidate_cache");
Jens Axboee5b401d2006-10-18 16:03:40 +0200408 return 1;
Jens Axboe3baddf22008-04-04 11:10:30 +0200409 } else if (ret > 0) {
410 td_verror(td, ret, "invalidate_cache");
411 return 1;
Jens Axboee5b401d2006-10-18 16:03:40 +0200412 }
413
Jens Axboead2da602007-02-26 12:33:27 +0100414 return ret;
Jens Axboe3baddf22008-04-04 11:10:30 +0200415
416}
417
418int file_invalidate_cache(struct thread_data *td, struct fio_file *f)
419{
Jens Axboed6aed792009-06-03 08:41:15 +0200420 if (!fio_file_open(f))
Jens Axboea5fb4612008-05-28 10:54:01 +0200421 return 0;
422
Jens Axboe5e0074c2009-06-02 21:40:09 +0200423 return __file_invalidate_cache(td, f, -1ULL, -1ULL);
Jens Axboee5b401d2006-10-18 16:03:40 +0200424}
425
Jens Axboe6977bcd2008-03-01 15:55:36 +0100426int generic_close_file(struct thread_data fio_unused *td, struct fio_file *f)
Jens Axboe53cdc682006-10-18 11:50:58 +0200427{
Jens Axboe6977bcd2008-03-01 15:55:36 +0100428 int ret = 0;
429
Jens Axboeee56ad52008-02-01 10:30:20 +0100430 dprint(FD_FILE, "fd close %s\n", f->file_name);
Jens Axboe4906e0b2008-03-01 18:59:51 +0100431
432 remove_file_hash(f);
433
Jens Axboe6977bcd2008-03-01 15:55:36 +0100434 if (close(f->fd) < 0)
435 ret = errno;
436
Jens Axboeb5af8292007-03-08 12:43:13 +0100437 f->fd = -1;
Jens Axboee6c4d732012-12-12 08:16:27 +0100438
439 if (f->shadow_fd != -1) {
440 close(f->shadow_fd);
441 f->shadow_fd = -1;
442 }
443
Jens Axboe6977bcd2008-03-01 15:55:36 +0100444 return ret;
Jens Axboe53cdc682006-10-18 11:50:58 +0200445}
446
Dmitry Monakhov1ccc6dc2012-09-19 23:22:53 +0400447int file_lookup_open(struct fio_file *f, int flags)
Jens Axboe53cdc682006-10-18 11:50:58 +0200448{
Jens Axboe29c13492008-03-01 19:25:20 +0100449 struct fio_file *__f;
Jens Axboe4d4e80f2008-03-04 10:18:56 +0100450 int from_hash;
451
452 __f = lookup_file_hash(f->file_name);
453 if (__f) {
Jens Axboe9efef3c2008-03-06 10:26:25 +0100454 dprint(FD_FILE, "found file in hash %s\n", f->file_name);
Jens Axboe4d4e80f2008-03-04 10:18:56 +0100455 /*
456 * racy, need the __f->lock locked
457 */
458 f->lock = __f->lock;
459 f->lock_owner = __f->lock_owner;
460 f->lock_batch = __f->lock_batch;
461 f->lock_ddir = __f->lock_ddir;
Jens Axboe4d4e80f2008-03-04 10:18:56 +0100462 from_hash = 1;
463 } else {
Jens Axboe9efef3c2008-03-06 10:26:25 +0100464 dprint(FD_FILE, "file not found in hash %s\n", f->file_name);
Jens Axboe4d4e80f2008-03-04 10:18:56 +0100465 from_hash = 0;
466 }
467
Jens Axboee8670ef2008-03-06 12:06:30 +0100468 f->fd = open(f->file_name, flags, 0600);
Jens Axboe4d4e80f2008-03-04 10:18:56 +0100469 return from_hash;
470}
471
Jens Axboee6c4d732012-12-12 08:16:27 +0100472static int file_close_shadow_fds(struct thread_data *td)
473{
474 struct fio_file *f;
475 int num_closed = 0;
476 unsigned int i;
477
478 for_each_file(td, f, i) {
479 if (f->shadow_fd == -1)
480 continue;
481
482 close(f->shadow_fd);
483 f->shadow_fd = -1;
484 num_closed++;
485 }
486
487 return num_closed;
488}
489
Jens Axboe4d4e80f2008-03-04 10:18:56 +0100490int generic_open_file(struct thread_data *td, struct fio_file *f)
491{
Jens Axboe66159822007-04-16 21:54:24 +0200492 int is_std = 0;
Jens Axboe53cdc682006-10-18 11:50:58 +0200493 int flags = 0;
Jens Axboe29c13492008-03-01 19:25:20 +0100494 int from_hash = 0;
Jens Axboe53cdc682006-10-18 11:50:58 +0200495
Jens Axboeee56ad52008-02-01 10:30:20 +0100496 dprint(FD_FILE, "fd open %s\n", f->file_name);
497
Shaohua Li6eaf09d2012-09-14 08:49:43 +0200498 if (td_trim(td) && f->filetype != FIO_TYPE_BD) {
499 log_err("fio: trim only applies to block device\n");
500 return 1;
501 }
502
Jens Axboe66159822007-04-16 21:54:24 +0200503 if (!strcmp(f->file_name, "-")) {
504 if (td_rw(td)) {
505 log_err("fio: can't read/write to stdin/out\n");
506 return 1;
507 }
508 is_std = 1;
Jens Axboece98fa62007-04-17 13:27:32 +0200509
510 /*
511 * move output logging to stderr, if we are writing to stdout
512 */
513 if (td_write(td))
514 f_out = stderr;
Jens Axboe66159822007-04-16 21:54:24 +0200515 }
516
Shaohua Li6eaf09d2012-09-14 08:49:43 +0200517 if (td_trim(td))
518 goto skip_flags;
Jens Axboe2dc1bbe2007-03-15 15:01:33 +0100519 if (td->o.odirect)
Jens Axboe2fd233b2007-03-02 08:44:25 +0100520 flags |= OS_O_DIRECT;
Jens Axboe2dc1bbe2007-03-15 15:01:33 +0100521 if (td->o.sync_io)
Jens Axboe2fd233b2007-03-02 08:44:25 +0100522 flags |= O_SYNC;
Jens Axboe814452b2009-03-04 12:53:13 +0100523 if (td->o.create_on_open)
524 flags |= O_CREAT;
Shaohua Li6eaf09d2012-09-14 08:49:43 +0200525skip_flags:
526 if (f->filetype != FIO_TYPE_FILE)
527 flags |= FIO_O_NOATIME;
Jens Axboe7abf8332006-11-23 15:01:19 +0100528
Aaron Carroll056f3452007-11-26 09:08:53 +0100529open_again:
Jens Axboe660a1cb2007-04-17 15:37:47 +0200530 if (td_write(td)) {
Jens Axboe17308152008-03-07 13:42:31 +0100531 if (!read_only)
532 flags |= O_RDWR;
Jens Axboe53cdc682006-10-18 11:50:58 +0200533
Jens Axboeaf52b342007-03-13 10:07:47 +0100534 if (f->filetype == FIO_TYPE_FILE)
Jens Axboe2fd233b2007-03-02 08:44:25 +0100535 flags |= O_CREAT;
Jens Axboe2fd233b2007-03-02 08:44:25 +0100536
Jens Axboe66159822007-04-16 21:54:24 +0200537 if (is_std)
538 f->fd = dup(STDOUT_FILENO);
Jens Axboe4d4e80f2008-03-04 10:18:56 +0100539 else
540 from_hash = file_lookup_open(f, flags);
Shaohua Li6eaf09d2012-09-14 08:49:43 +0200541 } else if (td_read(td)) {
Jens Axboe4241ea82007-09-12 08:18:36 +0200542 if (f->filetype == FIO_TYPE_CHAR && !read_only)
Jens Axboe2fd233b2007-03-02 08:44:25 +0100543 flags |= O_RDWR;
544 else
545 flags |= O_RDONLY;
546
Jens Axboe66159822007-04-16 21:54:24 +0200547 if (is_std)
548 f->fd = dup(STDIN_FILENO);
Jens Axboe4d4e80f2008-03-04 10:18:56 +0100549 else
550 from_hash = file_lookup_open(f, flags);
Shaohua Li6eaf09d2012-09-14 08:49:43 +0200551 } else { //td trim
552 flags |= O_RDWR;
553 from_hash = file_lookup_open(f, flags);
Jens Axboe53cdc682006-10-18 11:50:58 +0200554 }
555
556 if (f->fd == -1) {
Jens Axboee4e33252007-03-21 13:07:54 +0100557 char buf[FIO_VERROR_SIZE];
Jens Axboee1161c32007-02-22 19:36:48 +0100558 int __e = errno;
559
Jens Axboe835d9b92009-06-09 15:23:38 +0200560 if (__e == EPERM && (flags & FIO_O_NOATIME)) {
Jens Axboe5921e802008-05-30 15:02:38 +0200561 flags &= ~FIO_O_NOATIME;
Aaron Carroll056f3452007-11-26 09:08:53 +0100562 goto open_again;
563 }
Jens Axboee6c4d732012-12-12 08:16:27 +0100564 if (__e == EMFILE && file_close_shadow_fds(td))
565 goto open_again;
Aaron Carroll056f3452007-11-26 09:08:53 +0100566
Ken Raeburn98ffb8f2013-01-30 22:31:09 +0100567 snprintf(buf, sizeof(buf), "open(%s)", f->file_name);
Jens Axboee4e33252007-03-21 13:07:54 +0100568
Jens Axboea93c5f02012-06-11 08:53:53 +0200569 if (__e == EINVAL && (flags & OS_O_DIRECT)) {
570 log_err("fio: looks like your file system does not " \
571 "support direct=1/buffered=0\n");
572 }
573
Jens Axboee4e33252007-03-21 13:07:54 +0100574 td_verror(td, __e, buf);
Jens Axboe53cdc682006-10-18 11:50:58 +0200575 }
576
Jens Axboe29c13492008-03-01 19:25:20 +0100577 if (!from_hash && f->fd != -1) {
578 if (add_file_hash(f)) {
Jens Axboe3f0ca9b2011-05-24 21:36:24 +0200579 int fio_unused ret;
Jens Axboe29c13492008-03-01 19:25:20 +0100580
581 /*
Jens Axboee6c4d732012-12-12 08:16:27 +0100582 * Stash away descriptor for later close. This is to
583 * work-around a "feature" on Linux, where a close of
584 * an fd that has been opened for write will trigger
585 * udev to call blkid to check partitions, fs id, etc.
586 * That polutes the device cache, which can slow down
587 * unbuffered accesses.
Jens Axboe29c13492008-03-01 19:25:20 +0100588 */
Jens Axboee6c4d732012-12-12 08:16:27 +0100589 if (f->shadow_fd == -1)
590 f->shadow_fd = f->fd;
591 else {
592 /*
593 * OK to ignore, we haven't done anything
594 * with it
595 */
596 ret = generic_close_file(td, f);
597 }
Jens Axboe29c13492008-03-01 19:25:20 +0100598 goto open_again;
599 }
600 }
Jens Axboe4906e0b2008-03-01 18:59:51 +0100601
Jens Axboe53cdc682006-10-18 11:50:58 +0200602 return 0;
Jens Axboeb5af8292007-03-08 12:43:13 +0100603}
604
Jens Axboedf9c26b2009-03-05 10:13:58 +0100605int generic_get_file_size(struct thread_data *td, struct fio_file *f)
Jens Axboe21972cd2006-11-23 12:39:16 +0100606{
Jens Axboedf9c26b2009-03-05 10:13:58 +0100607 return get_file_size(td, f);
Jens Axboe21972cd2006-11-23 12:39:16 +0100608}
609
Jens Axboe7bb48f82007-03-27 15:30:28 +0200610/*
611 * open/close all files, so that ->real_file_size gets set
612 */
Jens Axboebab3fd52007-04-02 10:34:18 +0200613static int get_file_sizes(struct thread_data *td)
Jens Axboe53cdc682006-10-18 11:50:58 +0200614{
615 struct fio_file *f;
Jens Axboeaf52b342007-03-13 10:07:47 +0100616 unsigned int i;
Jens Axboebab3fd52007-04-02 10:34:18 +0200617 int err = 0;
Jens Axboe7bb48f82007-03-27 15:30:28 +0200618
619 for_each_file(td, f, i) {
Jens Axboe5ec10ea2008-03-06 15:42:00 +0100620 dprint(FD_FILE, "get file size for %p/%d/%p\n", f, i,
621 f->file_name);
Jens Axboe9efef3c2008-03-06 10:26:25 +0100622
Jens Axboe99a47c62009-04-07 22:20:56 +0200623 if (td_io_get_file_size(td, f)) {
Jens Axboe40b44f42007-04-11 12:43:35 +0200624 if (td->error != ENOENT) {
625 log_err("%s\n", td->verror);
626 err = 1;
627 }
Jens Axboe541d66d2007-03-27 19:50:11 +0200628 clear_error(td);
Jens Axboe07eb79d2007-04-12 13:02:38 +0200629 }
Jens Axboe409b3412007-03-28 09:57:01 +0200630
631 if (f->real_file_size == -1ULL && td->o.size)
632 f->real_file_size = td->o.size / td->o.nr_files;
Jens Axboe7bb48f82007-03-27 15:30:28 +0200633 }
Jens Axboebab3fd52007-04-02 10:34:18 +0200634
635 return err;
Jens Axboe7bb48f82007-03-27 15:30:28 +0200636}
637
Jens Axboe2e3bd4c2010-05-17 12:29:57 +0200638struct fio_mount {
639 struct flist_head list;
640 const char *base;
641 char __base[256];
642 unsigned int key;
643};
644
645/*
646 * Get free number of bytes for each file on each unique mount.
647 */
648static unsigned long long get_fs_free_counts(struct thread_data *td)
649{
650 struct flist_head *n, *tmp;
Jens Axboe68b03162010-06-24 09:22:41 +0200651 unsigned long long ret = 0;
Jens Axboe2e3bd4c2010-05-17 12:29:57 +0200652 struct fio_mount *fm;
653 FLIST_HEAD(list);
654 struct fio_file *f;
655 unsigned int i;
656
657 for_each_file(td, f, i) {
658 struct stat sb;
659 char buf[256];
660
Jens Axboe4ccdccd2010-06-24 10:27:22 +0200661 if (f->filetype == FIO_TYPE_BD || f->filetype == FIO_TYPE_CHAR) {
662 if (f->real_file_size != -1ULL)
663 ret += f->real_file_size;
Jens Axboe68b03162010-06-24 09:22:41 +0200664 continue;
665 } else if (f->filetype != FIO_TYPE_FILE)
666 continue;
667
Jens Axboe2e3bd4c2010-05-17 12:29:57 +0200668 strcpy(buf, f->file_name);
669
670 if (stat(buf, &sb) < 0) {
671 if (errno != ENOENT)
672 break;
673 strcpy(buf, ".");
674 if (stat(buf, &sb) < 0)
675 break;
676 }
677
678 fm = NULL;
679 flist_for_each(n, &list) {
680 fm = flist_entry(n, struct fio_mount, list);
681 if (fm->key == sb.st_dev)
682 break;
683
684 fm = NULL;
685 }
686
687 if (fm)
688 continue;
689
690 fm = malloc(sizeof(*fm));
691 strcpy(fm->__base, buf);
692 fm->base = basename(fm->__base);
693 fm->key = sb.st_dev;
694 flist_add(&fm->list, &list);
695 }
696
Jens Axboe2e3bd4c2010-05-17 12:29:57 +0200697 flist_for_each_safe(n, tmp, &list) {
698 unsigned long long sz;
699
700 fm = flist_entry(n, struct fio_mount, list);
701 flist_del(&fm->list);
702
703 sz = get_fs_size(fm->base);
704 if (sz && sz != -1ULL)
705 ret += sz;
706
707 free(fm);
708 }
709
710 return ret;
711}
712
Jens Axboe293b8c12013-01-04 13:16:54 +0100713uint64_t get_start_offset(struct thread_data *td)
Dan Ehrenbergce95d652012-08-16 08:58:21 +0200714{
715 return td->o.start_offset +
716 (td->thread_number - 1) * td->o.offset_increment;
717}
718
Jens Axboe7bb48f82007-03-27 15:30:28 +0200719/*
720 * Open the files and setup files sizes, creating files if necessary.
721 */
722int setup_files(struct thread_data *td)
723{
724 unsigned long long total_size, extend_size;
725 struct fio_file *f;
726 unsigned int i;
Jens Axboe000b0802007-03-27 15:56:10 +0200727 int err = 0, need_extend;
Jens Axboe53cdc682006-10-18 11:50:58 +0200728
Jens Axboeee56ad52008-02-01 10:30:20 +0100729 dprint(FD_FILE, "setup files\n");
730
Jens Axboe691c8fb2008-03-07 14:26:26 +0100731 if (td->o.read_iolog_file)
Jens Axboe25460cf2012-05-02 13:58:02 +0200732 goto done;
Jens Axboe691c8fb2008-03-07 14:26:26 +0100733
Jens Axboe53cdc682006-10-18 11:50:58 +0200734 /*
735 * if ioengine defines a setup() method, it's responsible for
Jens Axboe7bb48f82007-03-27 15:30:28 +0200736 * opening the files and setting f->real_file_size to indicate
737 * the valid range for that file.
Jens Axboe53cdc682006-10-18 11:50:58 +0200738 */
739 if (td->io_ops->setup)
Jens Axboe7bb48f82007-03-27 15:30:28 +0200740 err = td->io_ops->setup(td);
741 else
Jens Axboebab3fd52007-04-02 10:34:18 +0200742 err = get_file_sizes(td);
Jens Axboe53cdc682006-10-18 11:50:58 +0200743
Jens Axboef1027062006-10-20 10:14:01 +0200744 if (err)
745 return err;
746
Jens Axboe0a7eb122006-10-20 10:36:42 +0200747 /*
Jens Axboe7bb48f82007-03-27 15:30:28 +0200748 * check sizes. if the files/devices do not exist and the size
749 * isn't passed to fio, abort.
Jens Axboe0a7eb122006-10-20 10:36:42 +0200750 */
Jens Axboe7bb48f82007-03-27 15:30:28 +0200751 total_size = 0;
752 for_each_file(td, f, i) {
753 if (f->real_file_size == -1ULL)
754 total_size = -1ULL;
755 else
756 total_size += f->real_file_size;
757 }
Jens Axboe0a7eb122006-10-20 10:36:42 +0200758
Jens Axboe2e3bd4c2010-05-17 12:29:57 +0200759 if (td->o.fill_device)
760 td->fill_device_size = get_fs_free_counts(td);
761
Jens Axboe7bb48f82007-03-27 15:30:28 +0200762 /*
763 * device/file sizes are zero and no size given, punt
764 */
Jens Axboe1f809d12007-10-25 18:34:02 +0200765 if ((!total_size || total_size == -1ULL) && !td->o.size &&
Shawn Lewisaa31f1f2008-01-11 09:45:11 +0100766 !(td->io_ops->flags & FIO_NOIO) && !td->o.fill_device) {
Jens Axboe7bb48f82007-03-27 15:30:28 +0200767 log_err("%s: you need to specify size=\n", td->o.name);
Jens Axboee1161c32007-02-22 19:36:48 +0100768 td_verror(td, EINVAL, "total_file_size");
Jens Axboe53cdc682006-10-18 11:50:58 +0200769 return 1;
770 }
771
Jens Axboe7bb48f82007-03-27 15:30:28 +0200772 /*
773 * now file sizes are known, so we can set ->io_size. if size= is
774 * not given, ->io_size is just equal to ->real_file_size. if size
775 * is given, ->io_size is size / nr_files.
776 */
777 extend_size = total_size = 0;
778 need_extend = 0;
779 for_each_file(td, f, i) {
Dan Ehrenbergce95d652012-08-16 08:58:21 +0200780 f->file_offset = get_start_offset(td);
ljzhang,Yaxin Hu,Jianchao Tangbcdedd02007-07-27 13:28:26 +0200781
Jens Axboe7bb48f82007-03-27 15:30:28 +0200782 if (!td->o.file_size_low) {
783 /*
784 * no file size range given, file size is equal to
785 * total size divided by number of files. if that is
786 * zero, set it to the real file size.
787 */
788 f->io_size = td->o.size / td->o.nr_files;
Jens Axboe65bdb102008-01-24 13:13:12 +0100789 if (!f->io_size)
Jens Axboe273f8c92008-01-25 14:02:15 +0100790 f->io_size = f->real_file_size - f->file_offset;
Jens Axboe7bb48f82007-03-27 15:30:28 +0200791 } else if (f->real_file_size < td->o.file_size_low ||
792 f->real_file_size > td->o.file_size_high) {
Jens Axboe5ec10ea2008-03-06 15:42:00 +0100793 if (f->file_offset > td->o.file_size_low)
ljzhang,Yaxin Hu,Jianchao Tangbcdedd02007-07-27 13:28:26 +0200794 goto err_offset;
Jens Axboe7bb48f82007-03-27 15:30:28 +0200795 /*
796 * file size given. if it's fixed, use that. if it's a
797 * range, generate a random size in-between.
798 */
Jens Axboe5ec10ea2008-03-06 15:42:00 +0100799 if (td->o.file_size_low == td->o.file_size_high) {
800 f->io_size = td->o.file_size_low
801 - f->file_offset;
802 } else {
803 f->io_size = get_rand_file_size(td)
804 - f->file_offset;
805 }
Jens Axboe65bdb102008-01-24 13:13:12 +0100806 } else
ljzhang,Yaxin Hu,Jianchao Tangbcdedd02007-07-27 13:28:26 +0200807 f->io_size = f->real_file_size - f->file_offset;
Jens Axboe7bb48f82007-03-27 15:30:28 +0200808
809 if (f->io_size == -1ULL)
810 total_size = -1ULL;
Shaohua Li4d002562012-09-21 08:32:32 +0200811 else {
812 if (td->o.size_percent)
813 f->io_size = (f->io_size * td->o.size_percent) / 100;
Jens Axboe7bb48f82007-03-27 15:30:28 +0200814 total_size += f->io_size;
Shaohua Li4d002562012-09-21 08:32:32 +0200815 }
Jens Axboe7bb48f82007-03-27 15:30:28 +0200816
817 if (f->filetype == FIO_TYPE_FILE &&
ljzhang,Yaxin Hu,Jianchao Tangbcdedd02007-07-27 13:28:26 +0200818 (f->io_size + f->file_offset) > f->real_file_size &&
Jens Axboe7bb48f82007-03-27 15:30:28 +0200819 !(td->io_ops->flags & FIO_DISKLESSIO)) {
Jens Axboe814452b2009-03-04 12:53:13 +0100820 if (!td->o.create_on_open) {
821 need_extend++;
822 extend_size += (f->io_size + f->file_offset);
823 } else
824 f->real_file_size = f->io_size + f->file_offset;
Jens Axboed6aed792009-06-03 08:41:15 +0200825 fio_file_set_extend(f);
Jens Axboe5ec10ea2008-03-06 15:42:00 +0100826 }
Jens Axboe7bb48f82007-03-27 15:30:28 +0200827 }
828
ljzhang,Yaxin Hu,Jianchao Tang22982902007-07-27 13:21:28 +0200829 if (!td->o.size || td->o.size > total_size)
Jens Axboe7bb48f82007-03-27 15:30:28 +0200830 td->o.size = total_size;
831
832 /*
833 * See if we need to extend some files
834 */
835 if (need_extend) {
836 temp_stall_ts = 1;
Jens Axboef3afa572012-09-17 13:34:16 +0200837 if (output_format == FIO_OUTPUT_NORMAL)
Shaozhi Shawn Yea7ba8c52008-09-10 09:04:18 +0200838 log_info("%s: Laying out IO file(s) (%u file(s) /"
Bruce Cran0f2152c2010-12-15 10:33:03 +0100839 " %lluMB)\n", td->o.name, need_extend,
Shaozhi Shawn Yea7ba8c52008-09-10 09:04:18 +0200840 extend_size >> 20);
Jens Axboe7bb48f82007-03-27 15:30:28 +0200841
842 for_each_file(td, f, i) {
Jens Axboe5e0074c2009-06-02 21:40:09 +0200843 unsigned long long old_len = -1ULL, extend_len = -1ULL;
Jens Axboe3baddf22008-04-04 11:10:30 +0200844
Jens Axboed6aed792009-06-03 08:41:15 +0200845 if (!fio_file_extend(f))
Jens Axboe7bb48f82007-03-27 15:30:28 +0200846 continue;
847
Jens Axboe409b3412007-03-28 09:57:01 +0200848 assert(f->filetype == FIO_TYPE_FILE);
Jens Axboed6aed792009-06-03 08:41:15 +0200849 fio_file_clear_extend(f);
Jens Axboe5e0074c2009-06-02 21:40:09 +0200850 if (!td->o.fill_device) {
851 old_len = f->real_file_size;
Jens Axboe0b9d69e2009-09-11 22:29:54 +0200852 extend_len = f->io_size + f->file_offset -
853 old_len;
Jens Axboe5e0074c2009-06-02 21:40:09 +0200854 }
ljzhang,Yaxin Hu,Jianchao Tangbcdedd02007-07-27 13:28:26 +0200855 f->real_file_size = (f->io_size + f->file_offset);
Jens Axboe7bb48f82007-03-27 15:30:28 +0200856 err = extend_file(td, f);
857 if (err)
858 break;
Jens Axboe5e0074c2009-06-02 21:40:09 +0200859
Jens Axboe3baddf22008-04-04 11:10:30 +0200860 err = __file_invalidate_cache(td, f, old_len,
861 extend_len);
862 close(f->fd);
863 f->fd = -1;
864 if (err)
865 break;
Jens Axboe7bb48f82007-03-27 15:30:28 +0200866 }
867 temp_stall_ts = 0;
868 }
869
870 if (err)
871 return err;
872
Jens Axboe2dc1bbe2007-03-15 15:01:33 +0100873 if (!td->o.zone_size)
Jens Axboe7bb48f82007-03-27 15:30:28 +0200874 td->o.zone_size = td->o.size;
Jens Axboe53cdc682006-10-18 11:50:58 +0200875
Jens Axboeea966f82007-09-03 10:09:37 +0200876 /*
877 * iolog already set the total io size, if we read back
878 * stored entries.
879 */
880 if (!td->o.read_iolog_file)
881 td->total_io_size = td->o.size * td->o.loops;
Jens Axboe25460cf2012-05-02 13:58:02 +0200882
883done:
884 if (td->o.create_only)
885 td->done = 1;
886
Jens Axboe7bb48f82007-03-27 15:30:28 +0200887 return 0;
ljzhang,Yaxin Hu,Jianchao Tangbcdedd02007-07-27 13:28:26 +0200888err_offset:
889 log_err("%s: you need to specify valid offset=\n", td->o.name);
890 return 1;
Jens Axboe53cdc682006-10-18 11:50:58 +0200891}
892
Zhang, Yanminafad68f2009-05-20 11:30:55 +0200893int pre_read_files(struct thread_data *td)
894{
895 struct fio_file *f;
896 unsigned int i;
897
898 dprint(FD_FILE, "pre_read files\n");
899
900 for_each_file(td, f, i) {
901 pre_read_file(td, f);
902 }
903
904 return 1;
905}
906
Jens Axboe9c6f6312012-11-07 09:15:45 +0100907static int __init_rand_distribution(struct thread_data *td, struct fio_file *f)
908{
Jens Axboe23162962012-11-07 19:47:47 +0100909 unsigned int range_size, seed;
Jens Axboe9c6f6312012-11-07 09:15:45 +0100910 unsigned long nranges;
Jens Axboe21415db2013-01-04 13:09:29 +0100911 uint64_t file_size;
Jens Axboe9c6f6312012-11-07 09:15:45 +0100912
913 range_size = min(td->o.min_bs[DDIR_READ], td->o.min_bs[DDIR_WRITE]);
Jens Axboe21415db2013-01-04 13:09:29 +0100914 file_size = min(f->real_file_size, f->io_size);
Jens Axboe9c6f6312012-11-07 09:15:45 +0100915
Jens Axboe21415db2013-01-04 13:09:29 +0100916 nranges = (file_size + range_size - 1) / range_size;
Jens Axboe9c6f6312012-11-07 09:15:45 +0100917
Jens Axboe23162962012-11-07 19:47:47 +0100918 seed = jhash(f->file_name, strlen(f->file_name), 0) * td->thread_number;
Jens Axboe84256872012-11-17 10:06:36 -0700919 if (!td->o.rand_repeatable)
920 seed = td->rand_seeds[4];
921
Jens Axboe9c6f6312012-11-07 09:15:45 +0100922 if (td->o.random_distribution == FIO_RAND_DIST_ZIPF)
Jens Axboe23162962012-11-07 19:47:47 +0100923 zipf_init(&f->zipf, nranges, td->o.zipf_theta, seed);
Jens Axboe9c6f6312012-11-07 09:15:45 +0100924 else
Jens Axboe23162962012-11-07 19:47:47 +0100925 pareto_init(&f->zipf, nranges, td->o.pareto_h, seed);
Jens Axboe9c6f6312012-11-07 09:15:45 +0100926
927 return 1;
928}
929
930static int init_rand_distribution(struct thread_data *td)
931{
932 struct fio_file *f;
933 unsigned int i;
934 int state;
935
936 if (td->o.random_distribution == FIO_RAND_DIST_RANDOM)
937 return 0;
938
939 state = td->runstate;
940 td_set_runstate(td, TD_SETTING_UP);
941 for_each_file(td, f, i)
942 __init_rand_distribution(td, f);
943 td_set_runstate(td, state);
944
945 return 1;
946}
947
Jens Axboe68727072007-03-15 20:49:25 +0100948int init_random_map(struct thread_data *td)
949{
Jens Axboe51ede0b2012-11-22 13:50:29 +0100950 unsigned long long blocks;
Jens Axboe68727072007-03-15 20:49:25 +0100951 struct fio_file *f;
952 unsigned int i;
953
Jens Axboe9c6f6312012-11-07 09:15:45 +0100954 if (init_rand_distribution(td))
955 return 0;
Jens Axboe3831a842012-11-26 19:59:14 +0100956 if (!td_random(td))
Jens Axboe68727072007-03-15 20:49:25 +0100957 return 0;
958
959 for_each_file(td, f, i) {
Jens Axboe38f30c82013-01-11 14:03:05 +0100960 uint64_t file_size = min(f->real_file_size, f->io_size);
961
Jens Axboe53737ae2013-02-21 15:18:17 +0100962 blocks = file_size / (unsigned long long) td->o.rw_min_bs;
963
Jens Axboe8055e412012-11-26 08:43:47 +0100964 if (td->o.random_generator == FIO_RAND_GEN_LFSR) {
Jens Axboe82af46b2012-12-04 13:12:25 +0100965 unsigned long seed;
966
967 seed = td->rand_seeds[FIO_RAND_BLOCK_OFF];
968
Alex Pyrgiotisd474cbc2013-03-08 14:37:03 +0200969 if (!lfsr_init(&f->lfsr, blocks, seed, seed & 0xF))
Jens Axboe8055e412012-11-26 08:43:47 +0100970 continue;
Jens Axboe3831a842012-11-26 19:59:14 +0100971 } else if (!td->o.norandommap) {
Jens Axboe7ebd7962012-11-28 21:24:46 +0100972 f->io_axmap = axmap_new(blocks);
973 if (f->io_axmap)
Jens Axboe8055e412012-11-26 08:43:47 +0100974 continue;
Jens Axboe1cad7122012-11-29 21:37:11 +0100975 } else if (td->o.norandommap)
976 continue;
Jens Axboeceadd592012-02-02 08:41:28 +0100977
Jens Axboe2b386d22008-03-26 10:32:57 +0100978 if (!td->o.softrandommap) {
Jens Axboe5ec10ea2008-03-06 15:42:00 +0100979 log_err("fio: failed allocating random map. If running"
980 " a large number of jobs, try the 'norandommap'"
Jens Axboe2b386d22008-03-26 10:32:57 +0100981 " option or set 'softrandommap'. Or give"
982 " a larger --alloc-size to fio.\n");
Jens Axboe68727072007-03-15 20:49:25 +0100983 return 1;
984 }
Jens Axboe303032a2008-03-26 10:11:10 +0100985
986 log_info("fio: file %s failed allocating random map. Running "
987 "job without.\n", f->file_name);
Jens Axboe68727072007-03-15 20:49:25 +0100988 }
989
990 return 0;
991}
992
Jens Axboe53cdc682006-10-18 11:50:58 +0200993void close_files(struct thread_data *td)
994{
Jens Axboe0ab8db82006-10-18 17:16:23 +0200995 struct fio_file *f;
Jens Axboeaf52b342007-03-13 10:07:47 +0100996 unsigned int i;
Jens Axboe53cdc682006-10-18 11:50:58 +0200997
Jens Axboe2be3eec2009-06-10 09:05:13 +0200998 for_each_file(td, f, i) {
999 if (fio_file_open(f))
1000 td_io_close_file(td, f);
1001 }
Jens Axboe24ffd2c2008-03-01 15:47:08 +01001002}
1003
1004void close_and_free_files(struct thread_data *td)
1005{
1006 struct fio_file *f;
1007 unsigned int i;
1008
Jens Axboeee56ad52008-02-01 10:30:20 +01001009 dprint(FD_FILE, "close files\n");
1010
Jens Axboe0ab8db82006-10-18 17:16:23 +02001011 for_each_file(td, f, i) {
Jens Axboeffdfabd2008-03-26 09:18:14 +01001012 if (td->o.unlink && f->filetype == FIO_TYPE_FILE) {
1013 dprint(FD_FILE, "free unlink %s\n", f->file_name);
Jens Axboe132ad462006-11-23 12:23:12 +01001014 unlink(f->file_name);
Jens Axboeffdfabd2008-03-26 09:18:14 +01001015 }
Jens Axboebdb4e2e2007-03-01 09:54:57 +01001016
Jens Axboe22a57ba2009-06-09 14:34:35 +02001017 if (fio_file_open(f))
1018 td_io_close_file(td, f);
1019
Shaozhi Shawn Yeb9fbcf22008-09-10 09:05:17 +02001020 remove_file_hash(f);
Jens Axboeb3dc7f02007-03-09 12:52:15 +01001021
Jens Axboef17c4392008-03-01 18:40:46 +01001022 sfree(f->file_name);
Jens Axboefa1da862007-03-23 15:20:54 +01001023 f->file_name = NULL;
Jens Axboe7ebd7962012-11-28 21:24:46 +01001024 axmap_free(f->io_axmap);
1025 f->io_axmap = NULL;
Jens Axboe78d99e62008-03-01 18:41:50 +01001026 sfree(f);
Jens Axboe53cdc682006-10-18 11:50:58 +02001027 }
Jens Axboeb4a6a592006-10-20 13:54:47 +02001028
Jens Axboe2dc1bbe2007-03-15 15:01:33 +01001029 td->o.filename = NULL;
Jens Axboecade3ef2007-03-23 15:29:45 +01001030 free(td->files);
Jens Axboe9efef3c2008-03-06 10:26:25 +01001031 td->files_index = 0;
Jens Axboeb4a6a592006-10-20 13:54:47 +02001032 td->files = NULL;
Jens Axboe2dc1bbe2007-03-15 15:01:33 +01001033 td->o.nr_files = 0;
Jens Axboe53cdc682006-10-18 11:50:58 +02001034}
Jens Axboeaf52b342007-03-13 10:07:47 +01001035
Jens Axboee3bab462007-03-13 11:22:09 +01001036static void get_file_type(struct fio_file *f)
Jens Axboeaf52b342007-03-13 10:07:47 +01001037{
1038 struct stat sb;
1039
Jens Axboe66159822007-04-16 21:54:24 +02001040 if (!strcmp(f->file_name, "-"))
1041 f->filetype = FIO_TYPE_PIPE;
1042 else
1043 f->filetype = FIO_TYPE_FILE;
Jens Axboeaf52b342007-03-13 10:07:47 +01001044
Bruce Cran38921822012-02-22 17:55:16 +00001045 /* \\.\ is the device namespace in Windows, where every file is
1046 * a block device */
1047 if (strncmp(f->file_name, "\\\\.\\", 4) == 0)
1048 f->filetype = FIO_TYPE_BD;
1049
Jens Axboeb30d3952010-02-06 23:36:26 +01001050 if (!stat(f->file_name, &sb)) {
Bruce Cran38921822012-02-22 17:55:16 +00001051 if (S_ISBLK(sb.st_mode))
Jens Axboeaf52b342007-03-13 10:07:47 +01001052 f->filetype = FIO_TYPE_BD;
1053 else if (S_ISCHR(sb.st_mode))
1054 f->filetype = FIO_TYPE_CHAR;
Jens Axboeb5605e92007-04-16 20:42:33 +02001055 else if (S_ISFIFO(sb.st_mode))
1056 f->filetype = FIO_TYPE_PIPE;
Jens Axboeaf52b342007-03-13 10:07:47 +01001057 }
1058}
1059
Jens Axboef29b25a2007-07-23 08:56:43 +02001060int add_file(struct thread_data *td, const char *fname)
Jens Axboeaf52b342007-03-13 10:07:47 +01001061{
Jens Axboe7b4e4fe2007-03-13 12:51:40 +01001062 int cur_files = td->files_index;
Jens Axboebd0ee742007-03-23 14:26:23 +01001063 char file_name[PATH_MAX];
Jens Axboeaf52b342007-03-13 10:07:47 +01001064 struct fio_file *f;
Jens Axboebd0ee742007-03-23 14:26:23 +01001065 int len = 0;
Jens Axboeaf52b342007-03-13 10:07:47 +01001066
Jens Axboeee56ad52008-02-01 10:30:20 +01001067 dprint(FD_FILE, "add file %s\n", fname);
1068
Jens Axboef17c4392008-03-01 18:40:46 +01001069 f = smalloc(sizeof(*f));
Jens Axboec48c0be2008-07-31 19:55:02 +02001070 if (!f) {
1071 log_err("fio: smalloc OOM\n");
1072 assert(0);
1073 }
Jens Axboe0b9d69e2009-09-11 22:29:54 +02001074
Jens Axboeaf52b342007-03-13 10:07:47 +01001075 f->fd = -1;
Jens Axboee6c4d732012-12-12 08:16:27 +01001076 f->shadow_fd = -1;
Jens Axboe33c48812013-01-21 09:46:06 -07001077 fio_file_reset(td, f);
Jens Axboebd0ee742007-03-23 14:26:23 +01001078
Jens Axboefc99bc02009-03-04 15:27:42 +01001079 if (td->files_size <= td->files_index) {
Jianpeng Ma1983e322013-01-10 13:19:27 +01001080 unsigned int new_size = td->o.nr_files + 1;
Jens Axboe126d65c2008-03-01 18:04:31 +01001081
Jens Axboefc99bc02009-03-04 15:27:42 +01001082 dprint(FD_FILE, "resize file array to %d files\n", new_size);
1083
1084 td->files = realloc(td->files, new_size * sizeof(f));
Jianpeng Mad537c082013-01-11 08:52:55 +01001085 if (td->files == NULL) {
1086 log_err("fio: realloc OOM\n");
1087 assert(0);
1088 }
Jens Axboefc99bc02009-03-04 15:27:42 +01001089 td->files_size = new_size;
1090 }
Jens Axboe8bb76792009-03-04 15:37:52 +01001091 td->files[cur_files] = f;
Shaohua Li89ac1d42012-06-11 08:56:32 +02001092 f->fileno = cur_files;
Jens Axboe126d65c2008-03-01 18:04:31 +01001093
Jens Axboe07eb79d2007-04-12 13:02:38 +02001094 /*
1095 * init function, io engine may not be loaded yet
1096 */
1097 if (td->io_ops && (td->io_ops->flags & FIO_DISKLESSIO))
1098 f->real_file_size = -1ULL;
1099
Jens Axboebd0ee742007-03-23 14:26:23 +01001100 if (td->o.directory)
1101 len = sprintf(file_name, "%s/", td->o.directory);
1102
1103 sprintf(file_name + len, "%s", fname);
Jens Axboef17c4392008-03-01 18:40:46 +01001104 f->file_name = smalloc_strdup(file_name);
Jens Axboec48c0be2008-07-31 19:55:02 +02001105 if (!f->file_name) {
1106 log_err("fio: smalloc OOM\n");
1107 assert(0);
1108 }
Jens Axboe0b9d69e2009-09-11 22:29:54 +02001109
Jens Axboee3bab462007-03-13 11:22:09 +01001110 get_file_type(f);
Jens Axboeaf52b342007-03-13 10:07:47 +01001111
Jens Axboe4d4e80f2008-03-04 10:18:56 +01001112 switch (td->o.file_lock_mode) {
1113 case FILE_LOCK_NONE:
1114 break;
1115 case FILE_LOCK_READWRITE:
1116 f->lock = fio_mutex_rw_init();
1117 break;
1118 case FILE_LOCK_EXCLUSIVE:
Jens Axboe521da522012-08-02 11:21:36 +02001119 f->lock = fio_mutex_init(FIO_MUTEX_UNLOCKED);
Jens Axboe4d4e80f2008-03-04 10:18:56 +01001120 break;
1121 default:
1122 log_err("fio: unknown lock mode: %d\n", td->o.file_lock_mode);
1123 assert(0);
1124 }
Jens Axboe29c13492008-03-01 19:25:20 +01001125
Jens Axboe7b4e4fe2007-03-13 12:51:40 +01001126 td->files_index++;
Jens Axboe15494412007-03-13 11:52:47 +01001127 if (f->filetype == FIO_TYPE_FILE)
1128 td->nr_normal_files++;
Jens Axboef29b25a2007-07-23 08:56:43 +02001129
Jens Axboe5ec10ea2008-03-06 15:42:00 +01001130 dprint(FD_FILE, "file %p \"%s\" added at %d\n", f, f->file_name,
1131 cur_files);
Jens Axboe9efef3c2008-03-06 10:26:25 +01001132
Jens Axboef29b25a2007-07-23 08:56:43 +02001133 return cur_files;
Jens Axboeaf52b342007-03-13 10:07:47 +01001134}
Jens Axboe0ad920e2007-03-13 11:06:45 +01001135
Jens Axboe49ffb4a2010-08-24 15:01:37 +02001136int add_file_exclusive(struct thread_data *td, const char *fname)
1137{
1138 struct fio_file *f;
1139 unsigned int i;
1140
1141 for_each_file(td, f, i) {
1142 if (!strcmp(f->file_name, fname))
1143 return i;
1144 }
1145
1146 return add_file(td, fname);
1147}
1148
Jens Axboe0ad920e2007-03-13 11:06:45 +01001149void get_file(struct fio_file *f)
1150{
Jens Axboe8172fe92008-02-01 21:51:02 +01001151 dprint(FD_FILE, "get file %s, ref=%d\n", f->file_name, f->references);
Jens Axboed6aed792009-06-03 08:41:15 +02001152 assert(fio_file_open(f));
Jens Axboe0ad920e2007-03-13 11:06:45 +01001153 f->references++;
1154}
1155
Jens Axboe6977bcd2008-03-01 15:55:36 +01001156int put_file(struct thread_data *td, struct fio_file *f)
Jens Axboe0ad920e2007-03-13 11:06:45 +01001157{
Jens Axboe98e1ac42008-03-06 11:56:48 +01001158 int f_ret = 0, ret = 0;
Jens Axboe6977bcd2008-03-01 15:55:36 +01001159
Jens Axboe8172fe92008-02-01 21:51:02 +01001160 dprint(FD_FILE, "put file %s, ref=%d\n", f->file_name, f->references);
Jens Axboeee56ad52008-02-01 10:30:20 +01001161
Jens Axboe22a57ba2009-06-09 14:34:35 +02001162 if (!fio_file_open(f)) {
1163 assert(f->fd == -1);
Jens Axboe6977bcd2008-03-01 15:55:36 +01001164 return 0;
Jens Axboe22a57ba2009-06-09 14:34:35 +02001165 }
Jens Axboe0ad920e2007-03-13 11:06:45 +01001166
1167 assert(f->references);
1168 if (--f->references)
Jens Axboe6977bcd2008-03-01 15:55:36 +01001169 return 0;
Jens Axboe0ad920e2007-03-13 11:06:45 +01001170
Jens Axboed424d4d2007-04-17 09:05:10 +02001171 if (should_fsync(td) && td->o.fsync_on_close)
Jens Axboe98e1ac42008-03-06 11:56:48 +01001172 f_ret = fsync(f->fd);
Jens Axboeebb14152007-03-13 14:42:15 +01001173
Jens Axboe0ad920e2007-03-13 11:06:45 +01001174 if (td->io_ops->close_file)
Jens Axboe6977bcd2008-03-01 15:55:36 +01001175 ret = td->io_ops->close_file(td, f);
Jens Axboe1020a132007-03-29 11:15:06 +02001176
Jens Axboe98e1ac42008-03-06 11:56:48 +01001177 if (!ret)
Jens Axboea5fb4612008-05-28 10:54:01 +02001178 ret = f_ret;
Jens Axboe98e1ac42008-03-06 11:56:48 +01001179
Jens Axboe0ad920e2007-03-13 11:06:45 +01001180 td->nr_open_files--;
Jens Axboed6aed792009-06-03 08:41:15 +02001181 fio_file_clear_open(f);
Jens Axboe22a57ba2009-06-09 14:34:35 +02001182 assert(f->fd == -1);
Jens Axboe6977bcd2008-03-01 15:55:36 +01001183 return ret;
Jens Axboe0ad920e2007-03-13 11:06:45 +01001184}
Jens Axboebbf6b542007-03-13 15:28:55 +01001185
Jens Axboe4d4e80f2008-03-04 10:18:56 +01001186void lock_file(struct thread_data *td, struct fio_file *f, enum fio_ddir ddir)
Jens Axboeb2bd2bd2008-03-01 18:19:52 +01001187{
Jens Axboe4d4e80f2008-03-04 10:18:56 +01001188 if (!f->lock || td->o.file_lock_mode == FILE_LOCK_NONE)
1189 return;
Jens Axboe29c13492008-03-01 19:25:20 +01001190
Jens Axboe4d4e80f2008-03-04 10:18:56 +01001191 if (f->lock_owner == td && f->lock_batch--)
1192 return;
1193
1194 if (td->o.file_lock_mode == FILE_LOCK_READWRITE) {
1195 if (ddir == DDIR_READ)
1196 fio_mutex_down_read(f->lock);
1197 else
1198 fio_mutex_down_write(f->lock);
1199 } else if (td->o.file_lock_mode == FILE_LOCK_EXCLUSIVE)
1200 fio_mutex_down(f->lock);
1201
1202 f->lock_owner = td;
1203 f->lock_batch = td->o.lockfile_batch;
1204 f->lock_ddir = ddir;
1205}
1206
1207void unlock_file(struct thread_data *td, struct fio_file *f)
1208{
1209 if (!f->lock || td->o.file_lock_mode == FILE_LOCK_NONE)
1210 return;
1211 if (f->lock_batch)
1212 return;
1213
1214 if (td->o.file_lock_mode == FILE_LOCK_READWRITE) {
1215 const int is_read = f->lock_ddir == DDIR_READ;
1216 int val = fio_mutex_getval(f->lock);
1217
1218 if ((is_read && val == 1) || (!is_read && val == -1))
1219 f->lock_owner = NULL;
1220
1221 if (is_read)
1222 fio_mutex_up_read(f->lock);
1223 else
1224 fio_mutex_up_write(f->lock);
1225 } else if (td->o.file_lock_mode == FILE_LOCK_EXCLUSIVE) {
1226 int val = fio_mutex_getval(f->lock);
1227
1228 if (val == 0)
1229 f->lock_owner = NULL;
1230
1231 fio_mutex_up(f->lock);
Jens Axboe29c13492008-03-01 19:25:20 +01001232 }
Jens Axboeb2bd2bd2008-03-01 18:19:52 +01001233}
1234
Jens Axboe4d4e80f2008-03-04 10:18:56 +01001235void unlock_file_all(struct thread_data *td, struct fio_file *f)
Jens Axboeb2bd2bd2008-03-01 18:19:52 +01001236{
Jens Axboe4d4e80f2008-03-04 10:18:56 +01001237 if (f->lock_owner != td)
1238 return;
Jens Axboe29c13492008-03-01 19:25:20 +01001239
Jens Axboe4d4e80f2008-03-04 10:18:56 +01001240 f->lock_batch = 0;
1241 unlock_file(td, f);
Jens Axboeb2bd2bd2008-03-01 18:19:52 +01001242}
1243
Jens Axboebbf6b542007-03-13 15:28:55 +01001244static int recurse_dir(struct thread_data *td, const char *dirname)
1245{
1246 struct dirent *dir;
1247 int ret = 0;
1248 DIR *D;
1249
1250 D = opendir(dirname);
1251 if (!D) {
Jens Axboe0ddb2702007-03-27 19:43:53 +02001252 char buf[FIO_VERROR_SIZE];
1253
Ken Raeburn98ffb8f2013-01-30 22:31:09 +01001254 snprintf(buf, FIO_VERROR_SIZE, "opendir(%s)", dirname);
Jens Axboe0ddb2702007-03-27 19:43:53 +02001255 td_verror(td, errno, buf);
Jens Axboebbf6b542007-03-13 15:28:55 +01001256 return 1;
1257 }
1258
1259 while ((dir = readdir(D)) != NULL) {
1260 char full_path[PATH_MAX];
1261 struct stat sb;
1262
Jens Axboee85b2b82007-03-14 09:39:06 +01001263 if (!strcmp(dir->d_name, ".") || !strcmp(dir->d_name, ".."))
1264 continue;
Jens Axboe96d32d52007-03-14 09:16:09 +01001265
Bruce Cranb9fd7882012-02-20 17:01:46 +00001266 sprintf(full_path, "%s%s%s", dirname, FIO_OS_PATH_SEPARATOR, dir->d_name);
Jens Axboebbf6b542007-03-13 15:28:55 +01001267
1268 if (lstat(full_path, &sb) == -1) {
1269 if (errno != ENOENT) {
1270 td_verror(td, errno, "stat");
1271 return 1;
1272 }
1273 }
1274
1275 if (S_ISREG(sb.st_mode)) {
1276 add_file(td, full_path);
Jens Axboe2dc1bbe2007-03-15 15:01:33 +01001277 td->o.nr_files++;
Jens Axboebbf6b542007-03-13 15:28:55 +01001278 continue;
1279 }
Jens Axboe0ddb2702007-03-27 19:43:53 +02001280 if (!S_ISDIR(sb.st_mode))
1281 continue;
Jens Axboebbf6b542007-03-13 15:28:55 +01001282
Jens Axboe5ec10ea2008-03-06 15:42:00 +01001283 ret = recurse_dir(td, full_path);
1284 if (ret)
Jens Axboebbf6b542007-03-13 15:28:55 +01001285 break;
1286 }
1287
1288 closedir(D);
1289 return ret;
1290}
1291
1292int add_dir_files(struct thread_data *td, const char *path)
1293{
Jens Axboe0ddb2702007-03-27 19:43:53 +02001294 int ret = recurse_dir(td, path);
1295
1296 if (!ret)
1297 log_info("fio: opendir added %d files\n", td->o.nr_files);
1298
1299 return ret;
Jens Axboebbf6b542007-03-13 15:28:55 +01001300}
Jens Axboecade3ef2007-03-23 15:29:45 +01001301
1302void dup_files(struct thread_data *td, struct thread_data *org)
1303{
1304 struct fio_file *f;
1305 unsigned int i;
Jens Axboe9efef3c2008-03-06 10:26:25 +01001306
1307 dprint(FD_FILE, "dup files: %d\n", org->files_index);
Jens Axboecade3ef2007-03-23 15:29:45 +01001308
1309 if (!org->files)
1310 return;
1311
Jens Axboe9efef3c2008-03-06 10:26:25 +01001312 td->files = malloc(org->files_index * sizeof(f));
Jens Axboecade3ef2007-03-23 15:29:45 +01001313
Jens Axboe9efef3c2008-03-06 10:26:25 +01001314 for_each_file(org, f, i) {
Jens Axboeb0fe4212008-03-01 18:22:27 +01001315 struct fio_file *__f;
1316
Jens Axboef17c4392008-03-01 18:40:46 +01001317 __f = smalloc(sizeof(*__f));
Jens Axboec48c0be2008-07-31 19:55:02 +02001318 if (!__f) {
1319 log_err("fio: smalloc OOM\n");
1320 assert(0);
1321 }
Jens Axboe22a57ba2009-06-09 14:34:35 +02001322 __f->fd = -1;
Jens Axboe33c48812013-01-21 09:46:06 -07001323 fio_file_reset(td, __f);
Jens Axboe0b9d69e2009-09-11 22:29:54 +02001324
Aaron Carrollbc3456f2008-06-25 09:20:37 +02001325 if (f->file_name) {
Jens Axboef17c4392008-03-01 18:40:46 +01001326 __f->file_name = smalloc_strdup(f->file_name);
Jens Axboec48c0be2008-07-31 19:55:02 +02001327 if (!__f->file_name) {
1328 log_err("fio: smalloc OOM\n");
1329 assert(0);
1330 }
Jens Axboe0b9d69e2009-09-11 22:29:54 +02001331
Aaron Carrollbc3456f2008-06-25 09:20:37 +02001332 __f->filetype = f->filetype;
1333 }
Jens Axboeb0fe4212008-03-01 18:22:27 +01001334
1335 td->files[i] = __f;
Jens Axboecade3ef2007-03-23 15:29:45 +01001336 }
1337}
Jens Axboef29b25a2007-07-23 08:56:43 +02001338
1339/*
1340 * Returns the index that matches the filename, or -1 if not there
1341 */
1342int get_fileno(struct thread_data *td, const char *fname)
1343{
1344 struct fio_file *f;
1345 unsigned int i;
1346
1347 for_each_file(td, f, i)
1348 if (!strcmp(f->file_name, fname))
1349 return i;
1350
1351 return -1;
1352}
1353
1354/*
1355 * For log usage, where we add/open/close files automatically
1356 */
1357void free_release_files(struct thread_data *td)
1358{
1359 close_files(td);
1360 td->files_index = 0;
1361 td->nr_normal_files = 0;
1362}
Jens Axboe33c48812013-01-21 09:46:06 -07001363
1364void fio_file_reset(struct thread_data *td, struct fio_file *f)
1365{
1366 f->last_pos = f->file_offset;
1367 f->last_start = -1ULL;
1368 if (f->io_axmap)
1369 axmap_reset(f->io_axmap);
1370 if (td->o.random_generator == FIO_RAND_GEN_LFSR)
1371 lfsr_reset(&f->lfsr, td->rand_seeds[FIO_RAND_BLOCK_OFF]);
1372}