Add tests from t/ to the Windows installer
[fio.git] / filesetup.c
CommitLineData
53cdc686
JA
1#include <unistd.h>
2#include <fcntl.h>
3#include <string.h>
4#include <assert.h>
bbf6b540 5#include <dirent.h>
d74ac843 6#include <libgen.h>
53cdc686 7#include <sys/stat.h>
53cdc686
JA
8
9#include "fio.h"
f17c4392 10#include "smalloc.h"
4906e0b5 11#include "filehash.h"
bcbfeefa 12#include "options.h"
ecc314ba 13#include "os/os.h"
2316296a 14#include "hash.h"
7ebd796f 15#include "lib/axmap.h"
ae626d4e 16#include "rwlock.h"
bfbdd35b 17#include "zbd.h"
53cdc686 18
97ac992c 19#ifdef CONFIG_LINUX_FALLOCATE
a596f047
EG
20#include <linux/falloc.h>
21#endif
22
bcbfeefa
CE
23static FLIST_HEAD(filename_list);
24
bf651609
TK
25/*
26 * List entry for filename_list
27 */
28struct file_name {
29 struct flist_head list;
30 char *filename;
31};
32
c592b9fe
JA
33static inline void clear_error(struct thread_data *td)
34{
35 td->error = 0;
36 td->verror[0] = '\0';
37}
38
c75f74fb 39static int native_fallocate(struct thread_data *td, struct fio_file *f)
2c3e17be
SW
40{
41 bool success;
42
43 success = fio_fallocate(f, 0, f->real_file_size);
44 dprint(FD_FILE, "native fallocate of file %s size %llu was "
45 "%ssuccessful\n", f->file_name,
46 (unsigned long long) f->real_file_size,
47 !success ? "un": "");
48
49 if (success)
c0aabe37 50 return false;
2c3e17be
SW
51
52 if (errno == ENOSYS)
53 dprint(FD_FILE, "native fallocate is not implemented\n");
54
c0aabe37 55 return true;
2c3e17be
SW
56}
57
005eb303
JA
58static void fallocate_file(struct thread_data *td, struct fio_file *f)
59{
005eb303
JA
60 if (td->o.fill_device)
61 return;
62
005eb303 63 switch (td->o.fallocate_mode) {
2c3e17be 64 case FIO_FALLOCATE_NATIVE:
c0aabe37 65 native_fallocate(td, f);
2c3e17be 66 break;
005eb303
JA
67 case FIO_FALLOCATE_NONE:
68 break;
2c3e17be 69#ifdef CONFIG_POSIX_FALLOCATE
52db2dac
JA
70 case FIO_FALLOCATE_POSIX: {
71 int r;
72
005eb303
JA
73 dprint(FD_FILE, "posix_fallocate file %s size %llu\n",
74 f->file_name,
75 (unsigned long long) f->real_file_size);
76
77 r = posix_fallocate(f->fd, 0, f->real_file_size);
78 if (r > 0)
79 log_err("fio: posix_fallocate fails: %s\n", strerror(r));
80 break;
52db2dac 81 }
2c3e17be 82#endif /* CONFIG_POSIX_FALLOCATE */
005eb303 83#ifdef CONFIG_LINUX_FALLOCATE
52db2dac
JA
84 case FIO_FALLOCATE_KEEP_SIZE: {
85 int r;
86
005eb303
JA
87 dprint(FD_FILE, "fallocate(FALLOC_FL_KEEP_SIZE) "
88 "file %s size %llu\n", f->file_name,
89 (unsigned long long) f->real_file_size);
90
91 r = fallocate(f->fd, FALLOC_FL_KEEP_SIZE, 0, f->real_file_size);
92 if (r != 0)
93 td_verror(td, errno, "fallocate");
94
95 break;
52db2dac 96 }
005eb303
JA
97#endif /* CONFIG_LINUX_FALLOCATE */
98 default:
99 log_err("fio: unknown fallocate mode: %d\n", td->o.fallocate_mode);
100 assert(0);
101 }
005eb303
JA
102}
103
3baddf24
JA
104/*
105 * Leaves f->fd open on success, caller must close
106 */
7bb48f84 107static int extend_file(struct thread_data *td, struct fio_file *f)
25205e97 108{
005eb303 109 int new_layout = 0, unlink_file = 0, flags;
25205e97 110 unsigned long long left;
5fff9543 111 unsigned long long bs;
f3e1eb23 112 char *b = NULL;
b2a15192 113
4241ea8f
JA
114 if (read_only) {
115 log_err("fio: refusing extend of file due to read-only\n");
116 return 0;
117 }
118
507a702f
JA
119 /*
120 * check if we need to lay the file out complete again. fio
121 * does that for operations involving reads, or for writes
122 * where overwrite is set
123 */
1417daeb
JA
124 if (td_read(td) ||
125 (td_write(td) && td->o.overwrite && !td->o.file_append) ||
9b87f09b 126 (td_write(td) && td_ioengine_flagged(td, FIO_NOEXTEND)))
507a702f 127 new_layout = 1;
1417daeb 128 if (td_write(td) && !td->o.overwrite && !td->o.file_append)
ea443657 129 unlink_file = 1;
507a702f 130
6ae1f57f 131 if (unlink_file || new_layout) {
2442c935
JA
132 int ret;
133
bd199f2b 134 dprint(FD_FILE, "layout unlink %s\n", f->file_name);
2442c935
JA
135
136 ret = td_io_unlink_file(td, f);
137 if (ret != 0 && ret != ENOENT) {
7bb48f84
JA
138 td_verror(td, errno, "unlink");
139 return 1;
140 }
141 }
142
2378826d
JA
143 flags = O_WRONLY;
144 if (td->o.allow_create)
145 flags |= O_CREAT;
507a702f
JA
146 if (new_layout)
147 flags |= O_TRUNC;
148
9c0f3f32
BC
149#ifdef WIN32
150 flags |= _O_BINARY;
151#endif
152
ee56ad50 153 dprint(FD_FILE, "open file %s, flags %x\n", f->file_name, flags);
507a702f 154 f->fd = open(f->file_name, flags, 0644);
53cdc686 155 if (f->fd < 0) {
2378826d
JA
156 int err = errno;
157
158 if (err == ENOENT && !td->o.allow_create)
159 log_err("fio: file creation disallowed by "
160 "allow_file_create=0\n");
323876fb 161 else
2378826d 162 td_verror(td, err, "open");
53cdc686
JA
163 return 1;
164 }
165
005eb303 166 fallocate_file(td, f);
9b836561 167
79591fa9
TK
168 /*
169 * If our jobs don't require regular files initially, we're done.
170 */
fc74ac1d
SL
171 if (!new_layout)
172 goto done;
173
5e0074c2
JA
174 /*
175 * The size will be -1ULL when fill_device is used, so don't truncate
176 * or fallocate this file, just write it
177 */
178 if (!td->o.fill_device) {
179 dprint(FD_FILE, "truncate file %s, size %llu\n", f->file_name,
4b91ee8f 180 (unsigned long long) f->real_file_size);
5e0074c2 181 if (ftruncate(f->fd, f->real_file_size) == -1) {
3cd4c66f
J
182 if (errno != EFBIG) {
183 td_verror(td, errno, "ftruncate");
184 goto err;
185 }
5e0074c2 186 }
5e0074c2 187 }
40f8298c 188
82d8de31
TK
189 left = f->real_file_size;
190 bs = td->o.max_bs[DDIR_WRITE];
191 if (bs > left)
192 bs = left;
193
323876fb 194 b = malloc(bs);
84af30a1 195 if (!b) {
323876fb 196 td_verror(td, errno, "malloc");
84af30a1
TK
197 goto err;
198 }
53cdc686 199
53cdc686 200 while (left && !td->terminate) {
005eb303
JA
201 ssize_t r;
202
53cdc686
JA
203 if (bs > left)
204 bs = left;
205
cc86c395
JA
206 fill_io_buffer(td, b, bs, bs);
207
53cdc686
JA
208 r = write(f->fd, b, bs);
209
5e0074c2
JA
210 if (r > 0) {
211 left -= r;
53cdc686
JA
212 continue;
213 } else {
5e0074c2
JA
214 if (r < 0) {
215 int __e = errno;
216
217 if (__e == ENOSPC) {
218 if (td->o.fill_device)
219 break;
220 log_info("fio: ENOSPC on laying out "
221 "file, stopping\n");
222 break;
223 }
e1161c32 224 td_verror(td, errno, "write");
5e0074c2 225 } else
e1161c32 226 td_verror(td, EIO, "write");
53cdc686
JA
227
228 break;
229 }
230 }
231
ffdfabd4
JA
232 if (td->terminate) {
233 dprint(FD_FILE, "terminate unlink %s\n", f->file_name);
38ef9c90 234 td_io_unlink_file(td, f);
ffdfabd4 235 } else if (td->o.create_fsync) {
98e1ac4e
JA
236 if (fsync(f->fd) < 0) {
237 td_verror(td, errno, "fsync");
238 goto err;
239 }
240 }
0d1cd207 241 if (td->o.fill_device && !td_write(td)) {
d6aed795 242 fio_file_clear_size_known(f);
5e0074c2
JA
243 if (td_io_get_file_size(td, f))
244 goto err;
245 if (f->io_size > f->real_file_size)
246 f->io_size = f->real_file_size;
247 }
53cdc686 248
323876fb 249 free(b);
507a702f 250done:
53cdc686
JA
251 return 0;
252err:
253 close(f->fd);
254 f->fd = -1;
f3e1eb23 255 if (b)
323876fb 256 free(b);
53cdc686
JA
257 return 1;
258}
259
c139f3b4 260static bool pre_read_file(struct thread_data *td, struct fio_file *f)
afad68f7 261{
c139f3b4 262 int r, did_open = 0, old_runstate;
afad68f7 263 unsigned long long left;
5fff9543 264 unsigned long long bs;
c139f3b4 265 bool ret = true;
afad68f7
ZY
266 char *b;
267
736f1188
TK
268 if (td_ioengine_flagged(td, FIO_PIPEIO) ||
269 td_ioengine_flagged(td, FIO_NOIO))
c139f3b4 270 return true;
9c0d2241 271
e658078b 272 if (f->filetype == FIO_TYPE_CHAR)
c139f3b4 273 return true;
e658078b 274
d6aed795 275 if (!fio_file_open(f)) {
b0f65863
JA
276 if (td->io_ops->open_file(td, f)) {
277 log_err("fio: cannot pre-read, failed to open file\n");
c139f3b4 278 return false;
b0f65863
JA
279 }
280 did_open = 1;
281 }
282
8edd973d 283 old_runstate = td_bump_runstate(td, TD_PRE_READING);
b0f65863 284
82d8de31 285 left = f->io_size;
afad68f7 286 bs = td->o.max_bs[DDIR_READ];
82d8de31
TK
287 if (bs > left)
288 bs = left;
289
afad68f7 290 b = malloc(bs);
84af30a1
TK
291 if (!b) {
292 td_verror(td, errno, "malloc");
c139f3b4 293 ret = false;
84af30a1
TK
294 goto error;
295 }
afad68f7
ZY
296 memset(b, 0, bs);
297
ef799a64
JA
298 if (lseek(f->fd, f->file_offset, SEEK_SET) < 0) {
299 td_verror(td, errno, "lseek");
300 log_err("fio: failed to lseek pre-read file\n");
c139f3b4 301 ret = false;
ef799a64
JA
302 goto error;
303 }
304
afad68f7
ZY
305 while (left && !td->terminate) {
306 if (bs > left)
307 bs = left;
308
309 r = read(f->fd, b, bs);
310
311 if (r == (int) bs) {
312 left -= bs;
313 continue;
314 } else {
315 td_verror(td, EIO, "pre_read");
316 break;
317 }
318 }
319
ef799a64 320error:
8edd973d 321 td_restore_runstate(td, old_runstate);
b0f65863
JA
322
323 if (did_open)
324 td->io_ops->close_file(td, f);
ef799a64 325
afad68f7 326 free(b);
ef799a64 327 return ret;
afad68f7
ZY
328}
329
a3f001f5 330unsigned long long get_rand_file_size(struct thread_data *td)
9c60ce64 331{
dc873b6f 332 unsigned long long ret, sized;
c3546b53 333 uint64_t frand_max;
ed06087e 334 uint64_t r;
9c60ce64 335
c3546b53 336 frand_max = rand_max(&td->file_size_state);
d6b72507 337 r = __rand(&td->file_size_state);
54a21917 338 sized = td->o.file_size_high - td->o.file_size_low;
c3546b53 339 ret = (unsigned long long) ((double) sized * (r / (frand_max + 1.0)));
5ec10eaa 340 ret += td->o.file_size_low;
2dc1bbeb 341 ret -= (ret % td->o.rw_min_bs);
9c60ce64
JA
342 return ret;
343}
344
53cdc686
JA
345static int file_size(struct thread_data *td, struct fio_file *f)
346{
347 struct stat st;
348
df9c26b1 349 if (stat(f->file_name, &st) == -1) {
7bb48f84
JA
350 td_verror(td, errno, "fstat");
351 return 1;
352 }
53cdc686 353
7bb48f84 354 f->real_file_size = st.st_size;
53cdc686
JA
355 return 0;
356}
357
358static int bdev_size(struct thread_data *td, struct fio_file *f)
359{
9b836561 360 unsigned long long bytes = 0;
53cdc686
JA
361 int r;
362
df9c26b1
JA
363 if (td->io_ops->open_file(td, f)) {
364 log_err("fio: failed opening blockdev %s for size check\n",
365 f->file_name);
366 return 1;
367 }
368
ecc314ba 369 r = blockdev_size(f, &bytes);
53cdc686 370 if (r) {
e1161c32 371 td_verror(td, r, "blockdev_size");
df9c26b1 372 goto err;
53cdc686
JA
373 }
374
7ab077ab
JA
375 if (!bytes) {
376 log_err("%s: zero sized block device?\n", f->file_name);
df9c26b1 377 goto err;
7ab077ab
JA
378 }
379
53cdc686 380 f->real_file_size = bytes;
22a57ba8 381 td->io_ops->close_file(td, f);
53cdc686 382 return 0;
df9c26b1
JA
383err:
384 td->io_ops->close_file(td, f);
385 return 1;
53cdc686
JA
386}
387
4ccdccd1
JA
388static int char_size(struct thread_data *td, struct fio_file *f)
389{
390#ifdef FIO_HAVE_CHARDEV_SIZE
9b836561 391 unsigned long long bytes = 0;
4ccdccd1
JA
392 int r;
393
394 if (td->io_ops->open_file(td, f)) {
b3ec877c 395 log_err("fio: failed opening chardev %s for size check\n",
4ccdccd1
JA
396 f->file_name);
397 return 1;
398 }
399
ecc314ba 400 r = chardev_size(f, &bytes);
4ccdccd1
JA
401 if (r) {
402 td_verror(td, r, "chardev_size");
403 goto err;
404 }
405
406 if (!bytes) {
407 log_err("%s: zero sized char device?\n", f->file_name);
408 goto err;
409 }
410
411 f->real_file_size = bytes;
412 td->io_ops->close_file(td, f);
413 return 0;
414err:
415 td->io_ops->close_file(td, f);
416 return 1;
417#else
418 f->real_file_size = -1ULL;
419 return 0;
420#endif
421}
422
53cdc686
JA
423static int get_file_size(struct thread_data *td, struct fio_file *f)
424{
425 int ret = 0;
426
d6aed795 427 if (fio_file_size_known(f))
409b3417
JA
428 return 0;
429
7bb48f84
JA
430 if (f->filetype == FIO_TYPE_FILE)
431 ret = file_size(td, f);
686fbd31 432 else if (f->filetype == FIO_TYPE_BLOCK)
53cdc686 433 ret = bdev_size(td, f);
4ccdccd1
JA
434 else if (f->filetype == FIO_TYPE_CHAR)
435 ret = char_size(td, f);
8bd809f5
TK
436 else {
437 f->real_file_size = -1;
438 log_info("%s: failed to get file size of %s\n", td->o.name,
439 f->file_name);
440 return 1; /* avoid offset extends end error message */
441 }
53cdc686 442
79591fa9
TK
443 /*
444 * Leave ->real_file_size with 0 since it could be expectation
445 * of initial setup for regular files.
446 */
a0cb220b 447 if (ret)
53cdc686
JA
448 return ret;
449
957c81b9
TK
450 /*
451 * ->file_offset normally hasn't been initialized yet, so this
8bd809f5
TK
452 * is basically always false unless ->real_file_size is -1, but
453 * if ->real_file_size is -1 this message doesn't make sense.
454 * As a result, this message is basically useless.
957c81b9 455 */
53cdc686 456 if (f->file_offset > f->real_file_size) {
0f2152c1 457 log_err("%s: offset extends end (%llu > %llu)\n", td->o.name,
4e0a8fa2
JA
458 (unsigned long long) f->file_offset,
459 (unsigned long long) f->real_file_size);
53cdc686
JA
460 return 1;
461 }
462
d6aed795 463 fio_file_set_size_known(f);
53cdc686
JA
464 return 0;
465}
466
3baddf24
JA
467static int __file_invalidate_cache(struct thread_data *td, struct fio_file *f,
468 unsigned long long off,
469 unsigned long long len)
e5b401d4 470{
942a851a 471 int errval = 0, ret = 0;
e5b401d4 472
c8931876
JA
473#ifdef CONFIG_ESX
474 return 0;
475#endif
476
5e0074c2 477 if (len == -1ULL)
3baddf24
JA
478 len = f->io_size;
479 if (off == -1ULL)
480 off = f->file_offset;
ee56ad50 481
0d1cd207
JA
482 if (len == -1ULL || off == -1ULL)
483 return 0;
484
942a851a 485 if (td->io_ops->invalidate) {
4499dbef
TK
486 dprint(FD_IO, "invalidate %s cache %s\n", td->io_ops->name,
487 f->file_name);
d9b100fc 488 ret = td->io_ops->invalidate(td, f);
942a851a 489 if (ret < 0)
afd118db 490 errval = -ret;
4e18b4d9
SW
491 } else if (td_ioengine_flagged(td, FIO_DISKLESSIO)) {
492 dprint(FD_IO, "invalidate not supported by ioengine %s\n",
493 td->io_ops->name);
942a851a 494 } else if (f->filetype == FIO_TYPE_FILE) {
4499dbef
TK
495 dprint(FD_IO, "declare unneeded cache %s: %llu/%llu\n",
496 f->file_name, off, len);
ecc314ba 497 ret = posix_fadvise(f->fd, off, len, POSIX_FADV_DONTNEED);
0b139881 498 if (ret)
942a851a 499 errval = ret;
686fbd31 500 } else if (f->filetype == FIO_TYPE_BLOCK) {
2b9f9141
KR
501 int retry_count = 0;
502
4499dbef 503 dprint(FD_IO, "drop page cache %s\n", f->file_name);
ecc314ba 504 ret = blockdev_invalidate_cache(f);
2b9f9141
KR
505 while (ret < 0 && errno == EAGAIN && retry_count++ < 25) {
506 /*
507 * Linux multipath devices reject ioctl while
508 * the maps are being updated. That window can
509 * last tens of milliseconds; we'll try up to
510 * a quarter of a second.
511 */
512 usleep(10000);
513 ret = blockdev_invalidate_cache(f);
514 }
7e0e25c9 515 if (ret < 0 && errno == EACCES && geteuid()) {
5bdc4522 516 if (!fio_did_warn(FIO_WARN_ROOT_FLUSH)) {
5ec10eaa
JA
517 log_err("fio: only root may flush block "
518 "devices. Cache flush bypassed!\n");
7172cfe8 519 }
7e0e25c9 520 }
942a851a
JA
521 if (ret < 0)
522 errval = errno;
4499dbef
TK
523 } else if (f->filetype == FIO_TYPE_CHAR ||
524 f->filetype == FIO_TYPE_PIPE) {
525 dprint(FD_IO, "invalidate not supported %s\n", f->file_name);
4499dbef 526 }
e5b401d4 527
dfe11fd1
JA
528 /*
529 * Cache flushing isn't a fatal condition, and we know it will
530 * happen on some platforms where we don't have the proper
531 * function to flush eg block device caches. So just warn and
532 * continue on our way.
533 */
942a851a 534 if (errval)
22de5d77
TK
535 log_info("fio: cache invalidation of %s failed: %s\n",
536 f->file_name, strerror(errval));
e5b401d4 537
dfe11fd1 538 return 0;
3baddf24
JA
539
540}
541
542int file_invalidate_cache(struct thread_data *td, struct fio_file *f)
543{
d6aed795 544 if (!fio_file_open(f))
a5fb461f
JA
545 return 0;
546
5e0074c2 547 return __file_invalidate_cache(td, f, -1ULL, -1ULL);
e5b401d4
JA
548}
549
6977bcd0 550int generic_close_file(struct thread_data fio_unused *td, struct fio_file *f)
53cdc686 551{
6977bcd0
JA
552 int ret = 0;
553
ee56ad50 554 dprint(FD_FILE, "fd close %s\n", f->file_name);
4906e0b5
JA
555
556 remove_file_hash(f);
557
6977bcd0
JA
558 if (close(f->fd) < 0)
559 ret = errno;
560
b5af8293 561 f->fd = -1;
e6c4d732
JA
562
563 if (f->shadow_fd != -1) {
564 close(f->shadow_fd);
565 f->shadow_fd = -1;
566 }
567
710bf9c5 568 f->engine_pos = 0;
6977bcd0 569 return ret;
53cdc686
JA
570}
571
1ccc6dc7 572int file_lookup_open(struct fio_file *f, int flags)
53cdc686 573{
29c1349f 574 struct fio_file *__f;
4d4e80f2
JA
575 int from_hash;
576
577 __f = lookup_file_hash(f->file_name);
578 if (__f) {
9efef3c4 579 dprint(FD_FILE, "found file in hash %s\n", f->file_name);
4d4e80f2 580 f->lock = __f->lock;
4d4e80f2
JA
581 from_hash = 1;
582 } else {
9efef3c4 583 dprint(FD_FILE, "file not found in hash %s\n", f->file_name);
4d4e80f2
JA
584 from_hash = 0;
585 }
586
9c0f3f32
BC
587#ifdef WIN32
588 flags |= _O_BINARY;
589#endif
590
e8670ef8 591 f->fd = open(f->file_name, flags, 0600);
4d4e80f2
JA
592 return from_hash;
593}
594
e6c4d732
JA
595static int file_close_shadow_fds(struct thread_data *td)
596{
597 struct fio_file *f;
598 int num_closed = 0;
599 unsigned int i;
600
601 for_each_file(td, f, i) {
602 if (f->shadow_fd == -1)
603 continue;
604
605 close(f->shadow_fd);
606 f->shadow_fd = -1;
607 num_closed++;
608 }
609
610 return num_closed;
611}
612
4d4e80f2
JA
613int generic_open_file(struct thread_data *td, struct fio_file *f)
614{
66159828 615 int is_std = 0;
53cdc686 616 int flags = 0;
29c1349f 617 int from_hash = 0;
53cdc686 618
ee56ad50
JA
619 dprint(FD_FILE, "fd open %s\n", f->file_name);
620
66159828
JA
621 if (!strcmp(f->file_name, "-")) {
622 if (td_rw(td)) {
623 log_err("fio: can't read/write to stdin/out\n");
624 return 1;
625 }
626 is_std = 1;
ce98fa66
JA
627
628 /*
629 * move output logging to stderr, if we are writing to stdout
630 */
631 if (td_write(td))
632 f_out = stderr;
66159828
JA
633 }
634
6eaf09d6
SL
635 if (td_trim(td))
636 goto skip_flags;
2dc1bbeb 637 if (td->o.odirect)
2fd233b7 638 flags |= OS_O_DIRECT;
d01612f3
CM
639 if (td->o.oatomic) {
640 if (!FIO_O_ATOMIC) {
641 td_verror(td, EINVAL, "OS does not support atomic IO");
642 return 1;
643 }
644 flags |= OS_O_DIRECT | FIO_O_ATOMIC;
645 }
2dc1bbeb 646 if (td->o.sync_io)
2fd233b7 647 flags |= O_SYNC;
2378826d 648 if (td->o.create_on_open && td->o.allow_create)
814452bd 649 flags |= O_CREAT;
6eaf09d6
SL
650skip_flags:
651 if (f->filetype != FIO_TYPE_FILE)
652 flags |= FIO_O_NOATIME;
53cdc686 653
056f3459 654open_again:
660a1cb5 655 if (td_write(td)) {
17308158
JA
656 if (!read_only)
657 flags |= O_RDWR;
53cdc686 658
2378826d 659 if (f->filetype == FIO_TYPE_FILE && td->o.allow_create)
2fd233b7 660 flags |= O_CREAT;
2fd233b7 661
66159828
JA
662 if (is_std)
663 f->fd = dup(STDOUT_FILENO);
4d4e80f2
JA
664 else
665 from_hash = file_lookup_open(f, flags);
6eaf09d6 666 } else if (td_read(td)) {
4241ea8f 667 if (f->filetype == FIO_TYPE_CHAR && !read_only)
2fd233b7
JA
668 flags |= O_RDWR;
669 else
670 flags |= O_RDONLY;
671
66159828
JA
672 if (is_std)
673 f->fd = dup(STDIN_FILENO);
4d4e80f2
JA
674 else
675 from_hash = file_lookup_open(f, flags);
49cff020
TK
676 } else if (td_trim(td)) {
677 assert(!td_rw(td)); /* should have matched above */
11ff4c37
VF
678 if (!read_only)
679 flags |= O_RDWR;
6eaf09d6 680 from_hash = file_lookup_open(f, flags);
53cdc686
JA
681 }
682
683 if (f->fd == -1) {
e4e33258 684 char buf[FIO_VERROR_SIZE];
e1161c32
JA
685 int __e = errno;
686
835d9b9e 687 if (__e == EPERM && (flags & FIO_O_NOATIME)) {
5921e80c 688 flags &= ~FIO_O_NOATIME;
056f3459
AC
689 goto open_again;
690 }
e6c4d732
JA
691 if (__e == EMFILE && file_close_shadow_fds(td))
692 goto open_again;
056f3459 693
98ffb8f3 694 snprintf(buf, sizeof(buf), "open(%s)", f->file_name);
e4e33258 695
a93c5f04
JA
696 if (__e == EINVAL && (flags & OS_O_DIRECT)) {
697 log_err("fio: looks like your file system does not " \
698 "support direct=1/buffered=0\n");
699 }
700
e4e33258 701 td_verror(td, __e, buf);
3ce3ad33 702 return 1;
53cdc686
JA
703 }
704
29c1349f
JA
705 if (!from_hash && f->fd != -1) {
706 if (add_file_hash(f)) {
3f0ca9b9 707 int fio_unused ret;
29c1349f
JA
708
709 /*
e6c4d732
JA
710 * Stash away descriptor for later close. This is to
711 * work-around a "feature" on Linux, where a close of
712 * an fd that has been opened for write will trigger
713 * udev to call blkid to check partitions, fs id, etc.
de8f6de9 714 * That pollutes the device cache, which can slow down
e6c4d732 715 * unbuffered accesses.
29c1349f 716 */
e6c4d732
JA
717 if (f->shadow_fd == -1)
718 f->shadow_fd = f->fd;
719 else {
720 /*
721 * OK to ignore, we haven't done anything
722 * with it
723 */
724 ret = generic_close_file(td, f);
725 }
29c1349f
JA
726 goto open_again;
727 }
728 }
4906e0b5 729
53cdc686 730 return 0;
b5af8293
JA
731}
732
79591fa9
TK
733/*
734 * This function i.e. get_file_size() is the default .get_file_size
735 * implementation of majority of I/O engines.
736 */
df9c26b1 737int generic_get_file_size(struct thread_data *td, struct fio_file *f)
21972cde 738{
df9c26b1 739 return get_file_size(td, f);
21972cde
JA
740}
741
7bb48f84
JA
742/*
743 * open/close all files, so that ->real_file_size gets set
744 */
bab3fd58 745static int get_file_sizes(struct thread_data *td)
7bb48f84
JA
746{
747 struct fio_file *f;
748 unsigned int i;
bab3fd58 749 int err = 0;
7bb48f84
JA
750
751 for_each_file(td, f, i) {
08c44a55 752 dprint(FD_FILE, "get file size for %p/%d/%s\n", f, i,
5ec10eaa 753 f->file_name);
9efef3c4 754
99a47c69 755 if (td_io_get_file_size(td, f)) {
40b44f4a
JA
756 if (td->error != ENOENT) {
757 log_err("%s\n", td->verror);
758 err = 1;
3ce3ad33 759 break;
40b44f4a 760 }
541d66d7 761 clear_error(td);
07eb79df 762 }
409b3417 763
79591fa9
TK
764 /*
765 * There are corner cases where we end up with -1 for
766 * ->real_file_size due to unsupported file type, etc.
767 * We then just set to size option value divided by number
768 * of files, similar to the way file ->io_size is set.
769 * stat(2) failure doesn't set ->real_file_size to -1.
770 */
409b3417
JA
771 if (f->real_file_size == -1ULL && td->o.size)
772 f->real_file_size = td->o.size / td->o.nr_files;
7bb48f84 773 }
bab3fd58
JA
774
775 return err;
7bb48f84
JA
776}
777
2e3bd4c2
JA
778struct fio_mount {
779 struct flist_head list;
780 const char *base;
781 char __base[256];
782 unsigned int key;
783};
784
785/*
786 * Get free number of bytes for each file on each unique mount.
787 */
788static unsigned long long get_fs_free_counts(struct thread_data *td)
789{
790 struct flist_head *n, *tmp;
68b0316f 791 unsigned long long ret = 0;
2e3bd4c2
JA
792 struct fio_mount *fm;
793 FLIST_HEAD(list);
794 struct fio_file *f;
795 unsigned int i;
796
797 for_each_file(td, f, i) {
798 struct stat sb;
799 char buf[256];
800
686fbd31 801 if (f->filetype == FIO_TYPE_BLOCK || f->filetype == FIO_TYPE_CHAR) {
4ccdccd1
JA
802 if (f->real_file_size != -1ULL)
803 ret += f->real_file_size;
68b0316f
JA
804 continue;
805 } else if (f->filetype != FIO_TYPE_FILE)
806 continue;
807
da27a4bf
JA
808 buf[255] = '\0';
809 strncpy(buf, f->file_name, 255);
2e3bd4c2
JA
810
811 if (stat(buf, &sb) < 0) {
812 if (errno != ENOENT)
813 break;
814 strcpy(buf, ".");
815 if (stat(buf, &sb) < 0)
816 break;
817 }
818
819 fm = NULL;
820 flist_for_each(n, &list) {
821 fm = flist_entry(n, struct fio_mount, list);
822 if (fm->key == sb.st_dev)
823 break;
824
825 fm = NULL;
826 }
827
828 if (fm)
829 continue;
830
3660ceae 831 fm = calloc(1, sizeof(*fm));
32e31c8c
DLM
832 strncpy(fm->__base, buf, sizeof(fm->__base));
833 fm->__base[255] = '\0';
2e3bd4c2
JA
834 fm->base = basename(fm->__base);
835 fm->key = sb.st_dev;
836 flist_add(&fm->list, &list);
837 }
838
2e3bd4c2
JA
839 flist_for_each_safe(n, tmp, &list) {
840 unsigned long long sz;
841
842 fm = flist_entry(n, struct fio_mount, list);
843 flist_del(&fm->list);
844
c08ad04c 845 sz = get_fs_free_size(fm->base);
2e3bd4c2
JA
846 if (sz && sz != -1ULL)
847 ret += sz;
848
849 free(fm);
850 }
851
852 return ret;
853}
854
bedc9dc2 855uint64_t get_start_offset(struct thread_data *td, struct fio_file *f)
ce95d651 856{
bedc9dc2 857 struct thread_options *o = &td->o;
872e0415
JA
858 unsigned long long align_bs;
859 unsigned long long offset;
bedc9dc2
JA
860
861 if (o->file_append && f->filetype == FIO_TYPE_FILE)
862 return f->real_file_size;
863
89978a6b 864 if (o->start_offset_percent > 0) {
872e0415 865 /*
83c8b093 866 * if offset_align is provided, set initial offset
872e0415 867 */
83c8b093
JF
868 if (fio_option_is_set(o, start_offset_align)) {
869 align_bs = o->start_offset_align;
872e0415
JA
870 } else {
871 /* else take the minimum block size */
89978a6b
BW
872 align_bs = td_min_bs(td);
873 }
874
875 /* calculate the raw offset */
876 offset = (f->real_file_size * o->start_offset_percent / 100) +
877 (td->subjob_number * o->offset_increment);
878
872e0415
JA
879 /*
880 * block align the offset at the next available boundary at
881 * ceiling(offset / align_bs) * align_bs
882 */
89978a6b
BW
883 offset = (offset / align_bs + (offset % align_bs != 0)) * align_bs;
884
872e0415
JA
885 } else {
886 /* start_offset_percent not set */
f0d13935
JA
887 offset = o->start_offset +
888 td->subjob_number * o->offset_increment;
89978a6b 889 }
872e0415 890
89978a6b 891 return offset;
ce95d651
DE
892}
893
95af8dd5
KZ
894static bool create_work_dirs(struct thread_data *td, const char *fname)
895{
896 char path[PATH_MAX];
897 char *start, *end;
898
899 if (td->o.directory) {
900 snprintf(path, PATH_MAX, "%s%c%s", td->o.directory,
901 FIO_OS_PATH_SEPARATOR, fname);
902 start = strstr(path, fname);
903 } else {
904 snprintf(path, PATH_MAX, "%s", fname);
905 start = path;
906 }
907
908 end = start;
909 while ((end = strchr(end, FIO_OS_PATH_SEPARATOR)) != NULL) {
910 if (end == start)
911 break;
912 *end = '\0';
913 errno = 0;
914#ifdef CONFIG_HAVE_MKDIR_TWO
915 if (mkdir(path, 0600) && errno != EEXIST) {
916#else
917 if (mkdir(path) && errno != EEXIST) {
918#endif
919 log_err("fio: failed to create dir (%s): %d\n",
920 start, errno);
921 return false;
922 }
923 *end = FIO_OS_PATH_SEPARATOR;
924 end++;
925 }
926 td->flags |= TD_F_DIRS_CREATED;
927 return true;
928}
929
7bb48f84
JA
930/*
931 * Open the files and setup files sizes, creating files if necessary.
932 */
53cdc686
JA
933int setup_files(struct thread_data *td)
934{
7bb48f84 935 unsigned long long total_size, extend_size;
de98bd30 936 struct thread_options *o = &td->o;
53cdc686 937 struct fio_file *f;
002fe734 938 unsigned int i, nr_fs_extra = 0;
000b0803 939 int err = 0, need_extend;
e90391eb 940 int old_state;
5fff9543 941 const unsigned long long bs = td_min_bs(td);
002fe734 942 uint64_t fs = 0;
53cdc686 943
ee56ad50
JA
944 dprint(FD_FILE, "setup files\n");
945
8edd973d 946 old_state = td_bump_runstate(td, TD_SETTING_UP);
e90391eb 947
95af8dd5
KZ
948 for_each_file(td, f, i) {
949 if (!td_ioengine_flagged(td, FIO_DISKLESSIO) &&
950 strchr(f->file_name, FIO_OS_PATH_SEPARATOR) &&
951 !(td->flags & TD_F_DIRS_CREATED) &&
952 !create_work_dirs(td, f->file_name))
953 goto err_out;
954 }
955
53cdc686 956 /*
79591fa9
TK
957 * Find out physical size of files or devices for this thread,
958 * before we determine I/O size and range of our targets.
959 * If ioengine defines a setup() method, it's responsible for
7bb48f84
JA
960 * opening the files and setting f->real_file_size to indicate
961 * the valid range for that file.
53cdc686
JA
962 */
963 if (td->io_ops->setup)
7bb48f84
JA
964 err = td->io_ops->setup(td);
965 else
bab3fd58 966 err = get_file_sizes(td);
53cdc686 967
f1027063 968 if (err)
e90391eb 969 goto err_out;
f1027063 970
934c3085
AK
971 if (o->read_iolog_file)
972 goto done;
1df4ee29 973
0a7eb121 974 /*
7bb48f84
JA
975 * check sizes. if the files/devices do not exist and the size
976 * isn't passed to fio, abort.
0a7eb121 977 */
7bb48f84
JA
978 total_size = 0;
979 for_each_file(td, f, i) {
49a416bd 980 f->fileno = i;
7bb48f84
JA
981 if (f->real_file_size == -1ULL)
982 total_size = -1ULL;
983 else
984 total_size += f->real_file_size;
985 }
0a7eb121 986
de98bd30 987 if (o->fill_device)
2e3bd4c2
JA
988 td->fill_device_size = get_fs_free_counts(td);
989
7bb48f84
JA
990 /*
991 * device/file sizes are zero and no size given, punt
992 */
de98bd30 993 if ((!total_size || total_size == -1ULL) && !o->size &&
9b87f09b 994 !td_ioengine_flagged(td, FIO_NOIO) && !o->fill_device &&
de98bd30
JA
995 !(o->nr_files && (o->file_size_low || o->file_size_high))) {
996 log_err("%s: you need to specify size=\n", o->name);
e1161c32 997 td_verror(td, EINVAL, "total_file_size");
e90391eb 998 goto err_out;
53cdc686
JA
999 }
1000
002fe734
JA
1001 /*
1002 * Calculate per-file size and potential extra size for the
79591fa9 1003 * first files, if needed (i.e. if we don't have a fixed size).
002fe734 1004 */
d1e78e6b 1005 if (!o->file_size_low && o->nr_files) {
002fe734
JA
1006 uint64_t all_fs;
1007
1008 fs = o->size / o->nr_files;
1009 all_fs = fs * o->nr_files;
1010
1011 if (all_fs < o->size)
1012 nr_fs_extra = (o->size - all_fs) / bs;
1013 }
1014
7bb48f84
JA
1015 /*
1016 * now file sizes are known, so we can set ->io_size. if size= is
1017 * not given, ->io_size is just equal to ->real_file_size. if size
1018 * is given, ->io_size is size / nr_files.
1019 */
1020 extend_size = total_size = 0;
1021 need_extend = 0;
1022 for_each_file(td, f, i) {
bedc9dc2 1023 f->file_offset = get_start_offset(td, f);
bcdedd0a 1024
79591fa9
TK
1025 /*
1026 * Update ->io_size depending on options specified.
1027 * ->file_size_low being 0 means filesize option isn't set.
1028 * Non zero ->file_size_low equals ->file_size_high means
1029 * filesize option is set in a fixed size format.
1030 * Non zero ->file_size_low not equals ->file_size_high means
1031 * filesize option is set in a range format.
1032 */
de98bd30 1033 if (!o->file_size_low) {
7bb48f84 1034 /*
79591fa9 1035 * no file size or range given, file size is equal to
c4aa2d08 1036 * total size divided by number of files. If the size
002fe734
JA
1037 * doesn't divide nicely with the min blocksize,
1038 * make the first files bigger.
7bb48f84 1039 */
002fe734
JA
1040 f->io_size = fs;
1041 if (nr_fs_extra) {
1042 nr_fs_extra--;
1043 f->io_size += bs;
1044 }
1045
c4aa2d08 1046 /*
c6dfd837
TK
1047 * We normally don't come here for regular files, but
1048 * if the result is 0 for a regular file, set it to the
1049 * real file size. This could be size of the existing
1050 * one if it already exists, but otherwise will be set
1051 * to 0. A new file won't be created because
c4aa2d08
TK
1052 * ->io_size + ->file_offset equals ->real_file_size.
1053 */
1054 if (!f->io_size) {
1055 if (f->file_offset > f->real_file_size)
1056 goto err_offset;
273f8c91 1057 f->io_size = f->real_file_size - f->file_offset;
c4aa2d08
TK
1058 if (!f->io_size)
1059 log_info("fio: file %s may be ignored\n",
1060 f->file_name);
1061 }
de98bd30
JA
1062 } else if (f->real_file_size < o->file_size_low ||
1063 f->real_file_size > o->file_size_high) {
1064 if (f->file_offset > o->file_size_low)
bcdedd0a 1065 goto err_offset;
7bb48f84
JA
1066 /*
1067 * file size given. if it's fixed, use that. if it's a
1068 * range, generate a random size in-between.
1069 */
de98bd30
JA
1070 if (o->file_size_low == o->file_size_high)
1071 f->io_size = o->file_size_low - f->file_offset;
1072 else {
5ec10eaa
JA
1073 f->io_size = get_rand_file_size(td)
1074 - f->file_offset;
1075 }
65bdb10a 1076 } else
bcdedd0a 1077 f->io_size = f->real_file_size - f->file_offset;
53cdc686 1078
7bb48f84
JA
1079 if (f->io_size == -1ULL)
1080 total_size = -1ULL;
4d002569 1081 else {
408874da 1082 if (o->size_percent && o->size_percent != 100) {
76e4bb4f
SW
1083 uint64_t file_size;
1084
1085 file_size = f->io_size + f->file_offset;
1086 f->io_size = (file_size *
1087 o->size_percent) / 100;
1088 if (f->io_size > (file_size - f->file_offset))
1089 f->io_size = file_size - f->file_offset;
1090
e391c704
JA
1091 f->io_size -= (f->io_size % td_min_bs(td));
1092 }
7bb48f84 1093 total_size += f->io_size;
4d002569 1094 }
7bb48f84
JA
1095
1096 if (f->filetype == FIO_TYPE_FILE &&
bcdedd0a 1097 (f->io_size + f->file_offset) > f->real_file_size &&
9b87f09b 1098 !td_ioengine_flagged(td, FIO_DISKLESSIO)) {
5fd31680
JA
1099 if (!o->create_on_open) {
1100 need_extend++;
814452bd 1101 extend_size += (f->io_size + f->file_offset);
43558406 1102 fio_file_set_extend(f);
5fd31680 1103 } else
814452bd 1104 f->real_file_size = f->io_size + f->file_offset;
5ec10eaa 1105 }
7bb48f84 1106 }
53cdc686 1107
66347cfa
DE
1108 if (td->o.block_error_hist) {
1109 int len;
1110
1111 assert(td->o.nr_files == 1); /* checked in fixup_options */
1112 f = td->files[0];
1113 len = f->io_size / td->o.bs[DDIR_TRIM];
1114 if (len > MAX_NR_BLOCK_INFOS || len <= 0) {
1115 log_err("fio: cannot calculate block histogram with "
1116 "%d trim blocks, maximum %d\n",
1117 len, MAX_NR_BLOCK_INFOS);
1118 td_verror(td, EINVAL, "block_error_hist");
1119 goto err_out;
1120 }
1121
1122 td->ts.nr_block_infos = len;
8a68c41c 1123 for (i = 0; i < len; i++)
66347cfa
DE
1124 td->ts.block_infos[i] =
1125 BLOCK_INFO(0, BLOCK_STATE_UNINIT);
1126 } else
1127 td->ts.nr_block_infos = 0;
1128
0bc27b0b 1129 if (!o->size || (total_size && o->size > total_size))
de98bd30 1130 o->size = total_size;
21972cde 1131
d1faa06d
JA
1132 if (o->size < td_min_bs(td)) {
1133 log_err("fio: blocksize too large for data set\n");
1134 goto err_out;
1135 }
1136
7bb48f84 1137 /*
79591fa9
TK
1138 * See if we need to extend some files, typically needed when our
1139 * target regular files don't exist yet, but our jobs require them
1140 * initially due to read I/Os.
7bb48f84
JA
1141 */
1142 if (need_extend) {
1143 temp_stall_ts = 1;
7c5f4cdb
TK
1144 if (output_format & FIO_OUTPUT_NORMAL) {
1145 log_info("%s: Laying out IO file%s (%u file%s / %s%lluMiB)\n",
1146 o->name,
1147 need_extend > 1 ? "s" : "",
1148 need_extend,
1149 need_extend > 1 ? "s" : "",
1150 need_extend > 1 ? "total " : "",
1151 extend_size >> 20);
1152 }
7bb48f84
JA
1153
1154 for_each_file(td, f, i) {
5e0074c2 1155 unsigned long long old_len = -1ULL, extend_len = -1ULL;
3baddf24 1156
d6aed795 1157 if (!fio_file_extend(f))
7bb48f84
JA
1158 continue;
1159
409b3417 1160 assert(f->filetype == FIO_TYPE_FILE);
d6aed795 1161 fio_file_clear_extend(f);
de98bd30 1162 if (!o->fill_device) {
5e0074c2 1163 old_len = f->real_file_size;
0b9d69ec
JA
1164 extend_len = f->io_size + f->file_offset -
1165 old_len;
5e0074c2 1166 }
bcdedd0a 1167 f->real_file_size = (f->io_size + f->file_offset);
7bb48f84
JA
1168 err = extend_file(td, f);
1169 if (err)
3baddf24 1170 break;
5e0074c2 1171
3baddf24
JA
1172 err = __file_invalidate_cache(td, f, old_len,
1173 extend_len);
9824f73b
JA
1174
1175 /*
1176 * Shut up static checker
1177 */
1178 if (f->fd != -1)
1179 close(f->fd);
1180
3baddf24
JA
1181 f->fd = -1;
1182 if (err)
7bb48f84
JA
1183 break;
1184 }
1185 temp_stall_ts = 0;
1186 }
1187
1188 if (err)
e90391eb 1189 goto err_out;
7bb48f84 1190
ea966f81
JA
1191 /*
1192 * iolog already set the total io size, if we read back
1193 * stored entries.
1194 */
77731b29 1195 if (!o->read_iolog_file) {
5be9bf09
TK
1196 if (o->io_size)
1197 td->total_io_size = o->io_size * o->loops;
77731b29
JA
1198 else
1199 td->total_io_size = o->size * o->loops;
1200 }
25460cf6
JA
1201
1202done:
de98bd30 1203 if (o->create_only)
25460cf6
JA
1204 td->done = 1;
1205
8edd973d 1206 td_restore_runstate(td, old_state);
bfbdd35b
BVA
1207
1208 if (td->o.zone_mode == ZONE_MODE_ZBD) {
1209 err = zbd_init(td);
1210 if (err)
1211 goto err_out;
1212 }
7bb48f84 1213 return 0;
bfbdd35b 1214
bcdedd0a 1215err_offset:
de98bd30 1216 log_err("%s: you need to specify valid offset=\n", o->name);
e90391eb 1217err_out:
8edd973d 1218 td_restore_runstate(td, old_state);
bcdedd0a 1219 return 1;
53cdc686
JA
1220}
1221
c139f3b4 1222bool pre_read_files(struct thread_data *td)
afad68f7
ZY
1223{
1224 struct fio_file *f;
1225 unsigned int i;
1226
1227 dprint(FD_FILE, "pre_read files\n");
1228
1229 for_each_file(td, f, i) {
c139f3b4
JA
1230 if (!pre_read_file(td, f))
1231 return false;
afad68f7
ZY
1232 }
1233
c139f3b4 1234 return true;
afad68f7
ZY
1235}
1236
3a03f0cf 1237static void __init_rand_distribution(struct thread_data *td, struct fio_file *f)
9c6f6316 1238{
2316296a 1239 unsigned int range_size, seed;
abb60c32 1240 uint64_t nranges;
42da5c8b 1241 uint64_t fsize;
9c6f6316
JA
1242
1243 range_size = min(td->o.min_bs[DDIR_READ], td->o.min_bs[DDIR_WRITE]);
42da5c8b 1244 fsize = min(f->real_file_size, f->io_size);
9c6f6316 1245
abb60c32 1246 nranges = (fsize + range_size - 1ULL) / range_size;
9c6f6316 1247
2316296a 1248 seed = jhash(f->file_name, strlen(f->file_name), 0) * td->thread_number;
8425687e
JA
1249 if (!td->o.rand_repeatable)
1250 seed = td->rand_seeds[4];
1251
9c6f6316 1252 if (td->o.random_distribution == FIO_RAND_DIST_ZIPF)
888677a4 1253 zipf_init(&f->zipf, nranges, td->o.zipf_theta.u.f, seed);
56d9fa4b 1254 else if (td->o.random_distribution == FIO_RAND_DIST_PARETO)
888677a4 1255 pareto_init(&f->zipf, nranges, td->o.pareto_h.u.f, seed);
56d9fa4b 1256 else if (td->o.random_distribution == FIO_RAND_DIST_GAUSS)
f88cd222 1257 gauss_init(&f->gauss, nranges, td->o.gauss_dev.u.f, seed);
9c6f6316
JA
1258}
1259
4d832322 1260static bool init_rand_distribution(struct thread_data *td)
9c6f6316
JA
1261{
1262 struct fio_file *f;
1263 unsigned int i;
1264 int state;
1265
1266 if (td->o.random_distribution == FIO_RAND_DIST_RANDOM)
4d832322 1267 return false;
9c6f6316 1268
8edd973d
JA
1269 state = td_bump_runstate(td, TD_SETTING_UP);
1270
9c6f6316
JA
1271 for_each_file(td, f, i)
1272 __init_rand_distribution(td, f);
8edd973d
JA
1273
1274 td_restore_runstate(td, state);
4d832322 1275 return true;
9c6f6316
JA
1276}
1277
75f90d5f
JA
1278/*
1279 * Check if the number of blocks exceeds the randomness capability of
1280 * the selected generator. Tausworthe is 32-bit, the others are fullly
1281 * 64-bit capable.
1282 */
1283static int check_rand_gen_limits(struct thread_data *td, struct fio_file *f,
1284 uint64_t blocks)
1285{
1286 if (blocks <= FRAND32_MAX)
1287 return 0;
1288 if (td->o.random_generator != FIO_RAND_GEN_TAUSWORTHE)
1289 return 0;
1290
1291 /*
1292 * If the user hasn't specified a random generator, switch
1293 * to tausworthe64 with informational warning. If the user did
1294 * specify one, just warn.
1295 */
1296 log_info("fio: file %s exceeds 32-bit tausworthe random generator.\n",
1297 f->file_name);
1298
1299 if (!fio_option_is_set(&td->o, random_generator)) {
1300 log_info("fio: Switching to tausworthe64. Use the "
1301 "random_generator= option to get rid of this "
4e795a3e 1302 "warning.\n");
75f90d5f
JA
1303 td->o.random_generator = FIO_RAND_GEN_TAUSWORTHE64;
1304 return 0;
1305 }
1306
1307 /*
1308 * Just make this information to avoid breaking scripts.
1309 */
1310 log_info("fio: Use the random_generator= option to switch to lfsr or "
1311 "tausworthe64.\n");
1312 return 0;
1313}
1314
4d832322 1315bool init_random_map(struct thread_data *td)
68727076 1316{
51ede0b1 1317 unsigned long long blocks;
68727076
JA
1318 struct fio_file *f;
1319 unsigned int i;
1320
9c6f6316 1321 if (init_rand_distribution(td))
4d832322 1322 return true;
3831a843 1323 if (!td_random(td))
4d832322 1324 return true;
68727076
JA
1325
1326 for_each_file(td, f, i) {
42da5c8b 1327 uint64_t fsize = min(f->real_file_size, f->io_size);
38f30c81 1328
42da5c8b 1329 blocks = fsize / (unsigned long long) td->o.rw_min_bs;
53737ae0 1330
75f90d5f 1331 if (check_rand_gen_limits(td, f, blocks))
4d832322 1332 return false;
37fbd7e9 1333
8055e41d 1334 if (td->o.random_generator == FIO_RAND_GEN_LFSR) {
9781c080 1335 uint64_t seed;
82af46be
JA
1336
1337 seed = td->rand_seeds[FIO_RAND_BLOCK_OFF];
9c0f3f32 1338
967d1b63
JA
1339 if (!lfsr_init(&f->lfsr, blocks, seed, 0)) {
1340 fio_file_set_lfsr(f);
8055e41d 1341 continue;
967d1b63 1342 }
3831a843 1343 } else if (!td->o.norandommap) {
7ebd796f 1344 f->io_axmap = axmap_new(blocks);
967d1b63
JA
1345 if (f->io_axmap) {
1346 fio_file_set_axmap(f);
8055e41d 1347 continue;
967d1b63 1348 }
1cad7121
JA
1349 } else if (td->o.norandommap)
1350 continue;
ceadd59e 1351
2b386d25 1352 if (!td->o.softrandommap) {
5ec10eaa
JA
1353 log_err("fio: failed allocating random map. If running"
1354 " a large number of jobs, try the 'norandommap'"
2b386d25
JA
1355 " option or set 'softrandommap'. Or give"
1356 " a larger --alloc-size to fio.\n");
4d832322 1357 return false;
68727076 1358 }
303032ae
JA
1359
1360 log_info("fio: file %s failed allocating random map. Running "
1361 "job without.\n", f->file_name);
68727076
JA
1362 }
1363
4d832322 1364 return true;
68727076
JA
1365}
1366
53cdc686
JA
1367void close_files(struct thread_data *td)
1368{
0ab8db89 1369 struct fio_file *f;
af52b345 1370 unsigned int i;
53cdc686 1371
2be3eec3
JA
1372 for_each_file(td, f, i) {
1373 if (fio_file_open(f))
1374 td_io_close_file(td, f);
1375 }
24ffd2c2
JA
1376}
1377
1378void close_and_free_files(struct thread_data *td)
1379{
1380 struct fio_file *f;
1381 unsigned int i;
cb9bf647 1382 bool use_free = td_ioengine_flagged(td, FIO_NOFILEHASH);
24ffd2c2 1383
ee56ad50
JA
1384 dprint(FD_FILE, "close files\n");
1385
0ab8db89 1386 for_each_file(td, f, i) {
38ef9c90
CF
1387 if (td->o.unlink && f->filetype == FIO_TYPE_FILE) {
1388 dprint(FD_FILE, "free unlink %s\n", f->file_name);
1389 td_io_unlink_file(td, f);
1390 }
1391
22a57ba8
JA
1392 if (fio_file_open(f))
1393 td_io_close_file(td, f);
1394
b9fbcf21 1395 remove_file_hash(f);
b3dc7f07 1396
b5f4d8ba
JA
1397 if (td->o.unlink && f->filetype == FIO_TYPE_FILE) {
1398 dprint(FD_FILE, "free unlink %s\n", f->file_name);
38ef9c90 1399 td_io_unlink_file(td, f);
b5f4d8ba
JA
1400 }
1401
bfbdd35b
BVA
1402 zbd_free_zone_info(f);
1403
cb9bf647
JB
1404 if (use_free)
1405 free(f->file_name);
1406 else
1407 sfree(f->file_name);
fa1da865 1408 f->file_name = NULL;
967d1b63
JA
1409 if (fio_file_axmap(f)) {
1410 axmap_free(f->io_axmap);
1411 f->io_axmap = NULL;
1412 }
cb9bf647
JB
1413 if (use_free)
1414 free(f);
1415 else
1416 sfree(f);
53cdc686 1417 }
b4a6a59a 1418
2dc1bbeb 1419 td->o.filename = NULL;
cade3ef4 1420 free(td->files);
d7df1d13 1421 free(td->file_locks);
9efef3c4 1422 td->files_index = 0;
b4a6a59a 1423 td->files = NULL;
d7df1d13 1424 td->file_locks = NULL;
27ddbfa0 1425 td->o.file_lock_mode = FILE_LOCK_NONE;
2dc1bbeb 1426 td->o.nr_files = 0;
53cdc686 1427}
af52b345 1428
e3bab463 1429static void get_file_type(struct fio_file *f)
af52b345
JA
1430{
1431 struct stat sb;
1432
66159828
JA
1433 if (!strcmp(f->file_name, "-"))
1434 f->filetype = FIO_TYPE_PIPE;
1435 else
1436 f->filetype = FIO_TYPE_FILE;
af52b345 1437
d5b78f5a 1438#ifdef WIN32
3892182a
BC
1439 /* \\.\ is the device namespace in Windows, where every file is
1440 * a block device */
1441 if (strncmp(f->file_name, "\\\\.\\", 4) == 0)
686fbd31 1442 f->filetype = FIO_TYPE_BLOCK;
d5b78f5a 1443#endif
3892182a 1444
b30d395e 1445 if (!stat(f->file_name, &sb)) {
3892182a 1446 if (S_ISBLK(sb.st_mode))
686fbd31 1447 f->filetype = FIO_TYPE_BLOCK;
af52b345
JA
1448 else if (S_ISCHR(sb.st_mode))
1449 f->filetype = FIO_TYPE_CHAR;
b5605e9d
JA
1450 else if (S_ISFIFO(sb.st_mode))
1451 f->filetype = FIO_TYPE_PIPE;
af52b345
JA
1452 }
1453}
1454
1b2a83dc 1455static bool __is_already_allocated(const char *fname, bool set)
190b8f0c 1456{
90426237 1457 struct flist_head *entry;
1b2a83dc 1458 bool ret;
bcbfeefa 1459
1b2a83dc
JA
1460 ret = file_bloom_exists(fname, set);
1461 if (!ret)
1462 return ret;
90426237
JA
1463
1464 flist_for_each(entry, &filename_list) {
04d6530f 1465 struct file_name *fn;
90426237 1466
04d6530f
JA
1467 fn = flist_entry(entry, struct file_name, list);
1468
1469 if (!strcmp(fn->filename, fname))
1470 return true;
90426237
JA
1471 }
1472
04d6530f 1473 return false;
bcbfeefa
CE
1474}
1475
04d6530f 1476static bool is_already_allocated(const char *fname)
bcbfeefa 1477{
04d6530f 1478 bool ret;
bcbfeefa 1479
90426237 1480 fio_file_hash_lock();
1b2a83dc 1481 ret = __is_already_allocated(fname, false);
90426237 1482 fio_file_hash_unlock();
04d6530f 1483
90426237
JA
1484 return ret;
1485}
bcbfeefa 1486
90426237
JA
1487static void set_already_allocated(const char *fname)
1488{
1489 struct file_name *fn;
1490
1491 fn = malloc(sizeof(struct file_name));
1492 fn->filename = strdup(fname);
1493
1494 fio_file_hash_lock();
1b2a83dc 1495 if (!__is_already_allocated(fname, true)) {
90426237
JA
1496 flist_add_tail(&fn->list, &filename_list);
1497 fn = NULL;
bcbfeefa 1498 }
90426237 1499 fio_file_hash_unlock();
bcbfeefa 1500
90426237
JA
1501 if (fn) {
1502 free(fn->filename);
1503 free(fn);
1504 }
bcbfeefa
CE
1505}
1506
190b8f0c
CF
1507static void free_already_allocated(void)
1508{
bcbfeefa
CE
1509 struct flist_head *entry, *tmp;
1510 struct file_name *fn;
1511
90426237
JA
1512 if (flist_empty(&filename_list))
1513 return;
1514
1515 fio_file_hash_lock();
1516 flist_for_each_safe(entry, tmp, &filename_list) {
1517 fn = flist_entry(entry, struct file_name, list);
1518 free(fn->filename);
1519 flist_del(&fn->list);
1520 free(fn);
bcbfeefa 1521 }
90426237
JA
1522
1523 fio_file_hash_unlock();
bcbfeefa
CE
1524}
1525
7b5cb700
JA
1526static struct fio_file *alloc_new_file(struct thread_data *td)
1527{
1528 struct fio_file *f;
1529
cb9bf647
JB
1530 if (td_ioengine_flagged(td, FIO_NOFILEHASH))
1531 f = calloc(1, sizeof(*f));
1532 else
e0b3258b 1533 f = scalloc(1, sizeof(*f));
7b5cb700 1534 if (!f) {
7b5cb700
JA
1535 assert(0);
1536 return NULL;
1537 }
1538
1539 f->fd = -1;
1540 f->shadow_fd = -1;
1541 fio_file_reset(td, f);
1542 return f;
1543}
1544
04d6530f
JA
1545bool exists_and_not_regfile(const char *filename)
1546{
1547 struct stat sb;
1548
1549 if (lstat(filename, &sb) == -1)
1550 return false;
1551
1552#ifndef WIN32 /* NOT Windows */
1553 if (S_ISREG(sb.st_mode))
1554 return false;
1555#else
1556 /* \\.\ is the device namespace in Windows, where every file
1557 * is a device node */
1558 if (S_ISREG(sb.st_mode) && strncmp(filename, "\\\\.\\", 4) != 0)
1559 return false;
1560#endif
1561
1562 return true;
1563}
1564
5903e7b7 1565int add_file(struct thread_data *td, const char *fname, int numjob, int inc)
af52b345 1566{
7b4e4fe5 1567 int cur_files = td->files_index;
bd0ee748 1568 char file_name[PATH_MAX];
af52b345 1569 struct fio_file *f;
bd0ee748 1570 int len = 0;
af52b345 1571
ee56ad50
JA
1572 dprint(FD_FILE, "add file %s\n", fname);
1573
bcbfeefa 1574 if (td->o.directory)
922a5be8
JA
1575 len = set_name_idx(file_name, PATH_MAX, td->o.directory, numjob,
1576 td->o.unique_filename);
bcbfeefa
CE
1577
1578 sprintf(file_name + len, "%s", fname);
1579
1580 /* clean cloned siblings using existing files */
04d6530f
JA
1581 if (numjob && is_already_allocated(file_name) &&
1582 !exists_and_not_regfile(fname))
bcbfeefa
CE
1583 return 0;
1584
7b5cb700 1585 f = alloc_new_file(td);
bd0ee748 1586
fc99bc0d 1587 if (td->files_size <= td->files_index) {
1983e327 1588 unsigned int new_size = td->o.nr_files + 1;
126d65c6 1589
fc99bc0d
JA
1590 dprint(FD_FILE, "resize file array to %d files\n", new_size);
1591
1592 td->files = realloc(td->files, new_size * sizeof(f));
d537c08b
JM
1593 if (td->files == NULL) {
1594 log_err("fio: realloc OOM\n");
1595 assert(0);
1596 }
d7df1d13
JA
1597 if (td->o.file_lock_mode != FILE_LOCK_NONE) {
1598 td->file_locks = realloc(td->file_locks, new_size);
1599 if (!td->file_locks) {
1600 log_err("fio: realloc OOM\n");
1601 assert(0);
1602 }
1603 td->file_locks[cur_files] = FILE_LOCK_NONE;
1604 }
fc99bc0d
JA
1605 td->files_size = new_size;
1606 }
8bb7679e 1607 td->files[cur_files] = f;
89ac1d48 1608 f->fileno = cur_files;
126d65c6 1609
07eb79df
JA
1610 /*
1611 * init function, io engine may not be loaded yet
1612 */
9b87f09b 1613 if (td->io_ops && td_ioengine_flagged(td, FIO_DISKLESSIO))
07eb79df
JA
1614 f->real_file_size = -1ULL;
1615
cb9bf647
JB
1616 if (td_ioengine_flagged(td, FIO_NOFILEHASH))
1617 f->file_name = strdup(file_name);
1618 else
1619 f->file_name = smalloc_strdup(file_name);
b2e6494c
JA
1620
1621 /* can't handle smalloc failure from here */
1622 assert(f->file_name);
0b9d69ec 1623
e3bab463 1624 get_file_type(f);
af52b345 1625
4d4e80f2
JA
1626 switch (td->o.file_lock_mode) {
1627 case FILE_LOCK_NONE:
1628 break;
1629 case FILE_LOCK_READWRITE:
d7df1d13 1630 f->rwlock = fio_rwlock_init();
4d4e80f2
JA
1631 break;
1632 case FILE_LOCK_EXCLUSIVE:
971caeb1 1633 f->lock = fio_sem_init(FIO_SEM_UNLOCKED);
4d4e80f2
JA
1634 break;
1635 default:
1636 log_err("fio: unknown lock mode: %d\n", td->o.file_lock_mode);
1637 assert(0);
1638 }
29c1349f 1639
7b4e4fe5 1640 td->files_index++;
f29b25a3 1641
084a5475
JA
1642 if (td->o.numjobs > 1)
1643 set_already_allocated(file_name);
bcbfeefa 1644
5903e7b7
JA
1645 if (inc)
1646 td->o.nr_files++;
1647
5ec10eaa
JA
1648 dprint(FD_FILE, "file %p \"%s\" added at %d\n", f, f->file_name,
1649 cur_files);
9efef3c4 1650
f29b25a3 1651 return cur_files;
af52b345 1652}
0ad920e7 1653
49ffb4a2
JA
1654int add_file_exclusive(struct thread_data *td, const char *fname)
1655{
1656 struct fio_file *f;
1657 unsigned int i;
1658
1659 for_each_file(td, f, i) {
1660 if (!strcmp(f->file_name, fname))
1661 return i;
1662 }
1663
5903e7b7 1664 return add_file(td, fname, 0, 1);
49ffb4a2
JA
1665}
1666
0ad920e7
JA
1667void get_file(struct fio_file *f)
1668{
8172fe97 1669 dprint(FD_FILE, "get file %s, ref=%d\n", f->file_name, f->references);
d6aed795 1670 assert(fio_file_open(f));
0ad920e7
JA
1671 f->references++;
1672}
1673
6977bcd0 1674int put_file(struct thread_data *td, struct fio_file *f)
0ad920e7 1675{
98e1ac4e 1676 int f_ret = 0, ret = 0;
6977bcd0 1677
8172fe97 1678 dprint(FD_FILE, "put file %s, ref=%d\n", f->file_name, f->references);
ee56ad50 1679
22a57ba8
JA
1680 if (!fio_file_open(f)) {
1681 assert(f->fd == -1);
6977bcd0 1682 return 0;
22a57ba8 1683 }
0ad920e7
JA
1684
1685 assert(f->references);
1686 if (--f->references)
6977bcd0 1687 return 0;
0ad920e7 1688
230f33fb
AK
1689 disk_util_dec(f->du);
1690
1691 if (td->o.file_lock_mode != FILE_LOCK_NONE)
1692 unlock_file_all(td, f);
1693
71b84caa 1694 if (should_fsync(td) && td->o.fsync_on_close) {
98e1ac4e 1695 f_ret = fsync(f->fd);
71b84caa
JA
1696 if (f_ret < 0)
1697 f_ret = errno;
1698 }
ebb1415f 1699
0ad920e7 1700 if (td->io_ops->close_file)
6977bcd0 1701 ret = td->io_ops->close_file(td, f);
1020a139 1702
98e1ac4e 1703 if (!ret)
a5fb461f 1704 ret = f_ret;
98e1ac4e 1705
0ad920e7 1706 td->nr_open_files--;
230f33fb 1707 fio_file_clear_closing(f);
d6aed795 1708 fio_file_clear_open(f);
22a57ba8 1709 assert(f->fd == -1);
6977bcd0 1710 return ret;
0ad920e7 1711}
bbf6b540 1712
4d4e80f2 1713void lock_file(struct thread_data *td, struct fio_file *f, enum fio_ddir ddir)
b2bd2bd9 1714{
4d4e80f2
JA
1715 if (!f->lock || td->o.file_lock_mode == FILE_LOCK_NONE)
1716 return;
29c1349f 1717
4d4e80f2
JA
1718 if (td->o.file_lock_mode == FILE_LOCK_READWRITE) {
1719 if (ddir == DDIR_READ)
d7df1d13 1720 fio_rwlock_read(f->rwlock);
4d4e80f2 1721 else
d7df1d13 1722 fio_rwlock_write(f->rwlock);
4d4e80f2 1723 } else if (td->o.file_lock_mode == FILE_LOCK_EXCLUSIVE)
971caeb1 1724 fio_sem_down(f->lock);
4d4e80f2 1725
d7df1d13 1726 td->file_locks[f->fileno] = td->o.file_lock_mode;
b2bd2bd9
JA
1727}
1728
4d4e80f2 1729void unlock_file(struct thread_data *td, struct fio_file *f)
b2bd2bd9 1730{
4d4e80f2
JA
1731 if (!f->lock || td->o.file_lock_mode == FILE_LOCK_NONE)
1732 return;
4d4e80f2 1733
d7df1d13
JA
1734 if (td->o.file_lock_mode == FILE_LOCK_READWRITE)
1735 fio_rwlock_unlock(f->rwlock);
1736 else if (td->o.file_lock_mode == FILE_LOCK_EXCLUSIVE)
971caeb1 1737 fio_sem_up(f->lock);
d7df1d13
JA
1738
1739 td->file_locks[f->fileno] = FILE_LOCK_NONE;
b2bd2bd9
JA
1740}
1741
4d4e80f2
JA
1742void unlock_file_all(struct thread_data *td, struct fio_file *f)
1743{
f2a2803a 1744 if (td->o.file_lock_mode == FILE_LOCK_NONE || !td->file_locks)
27ddbfa0 1745 return;
d7df1d13
JA
1746 if (td->file_locks[f->fileno] != FILE_LOCK_NONE)
1747 unlock_file(td, f);
4d4e80f2
JA
1748}
1749
13bddad9 1750static bool recurse_dir(struct thread_data *td, const char *dirname)
bbf6b540
JA
1751{
1752 struct dirent *dir;
13bddad9 1753 bool ret = false;
bbf6b540
JA
1754 DIR *D;
1755
1756 D = opendir(dirname);
1757 if (!D) {
0ddb270c
JA
1758 char buf[FIO_VERROR_SIZE];
1759
98ffb8f3 1760 snprintf(buf, FIO_VERROR_SIZE, "opendir(%s)", dirname);
0ddb270c 1761 td_verror(td, errno, buf);
13bddad9 1762 return true;
bbf6b540
JA
1763 }
1764
1765 while ((dir = readdir(D)) != NULL) {
1766 char full_path[PATH_MAX];
1767 struct stat sb;
1768
e85b2b83
JA
1769 if (!strcmp(dir->d_name, ".") || !strcmp(dir->d_name, ".."))
1770 continue;
96d32d51 1771
53a7af85 1772 sprintf(full_path, "%s%c%s", dirname, FIO_OS_PATH_SEPARATOR, dir->d_name);
bbf6b540
JA
1773
1774 if (lstat(full_path, &sb) == -1) {
1775 if (errno != ENOENT) {
1776 td_verror(td, errno, "stat");
13bddad9 1777 ret = true;
68ace9e0 1778 break;
bbf6b540
JA
1779 }
1780 }
1781
1782 if (S_ISREG(sb.st_mode)) {
5903e7b7 1783 add_file(td, full_path, 0, 1);
bbf6b540
JA
1784 continue;
1785 }
0ddb270c
JA
1786 if (!S_ISDIR(sb.st_mode))
1787 continue;
bbf6b540 1788
5ec10eaa
JA
1789 ret = recurse_dir(td, full_path);
1790 if (ret)
bbf6b540
JA
1791 break;
1792 }
1793
1794 closedir(D);
1795 return ret;
1796}
1797
1798int add_dir_files(struct thread_data *td, const char *path)
1799{
0ddb270c
JA
1800 int ret = recurse_dir(td, path);
1801
1802 if (!ret)
1803 log_info("fio: opendir added %d files\n", td->o.nr_files);
1804
1805 return ret;
bbf6b540 1806}
cade3ef4
JA
1807
1808void dup_files(struct thread_data *td, struct thread_data *org)
1809{
1810 struct fio_file *f;
1811 unsigned int i;
9efef3c4
JA
1812
1813 dprint(FD_FILE, "dup files: %d\n", org->files_index);
cade3ef4
JA
1814
1815 if (!org->files)
1816 return;
1817
9efef3c4 1818 td->files = malloc(org->files_index * sizeof(f));
cade3ef4 1819
d7df1d13
JA
1820 if (td->o.file_lock_mode != FILE_LOCK_NONE)
1821 td->file_locks = malloc(org->files_index);
1822
9efef3c4 1823 for_each_file(org, f, i) {
b0fe421a
JA
1824 struct fio_file *__f;
1825
7b5cb700 1826 __f = alloc_new_file(td);
0b9d69ec 1827
bc3456fa 1828 if (f->file_name) {
cb9bf647
JB
1829 if (td_ioengine_flagged(td, FIO_NOFILEHASH))
1830 __f->file_name = strdup(f->file_name);
1831 else
1832 __f->file_name = smalloc_strdup(f->file_name);
0b9d69ec 1833
b2e6494c
JA
1834 /* can't handle smalloc failure from here */
1835 assert(__f->file_name);
bc3456fa
AC
1836 __f->filetype = f->filetype;
1837 }
b0fe421a 1838
67ad9242
JA
1839 if (td->o.file_lock_mode == FILE_LOCK_EXCLUSIVE)
1840 __f->lock = f->lock;
1841 else if (td->o.file_lock_mode == FILE_LOCK_READWRITE)
1842 __f->rwlock = f->rwlock;
1843
b0fe421a 1844 td->files[i] = __f;
cade3ef4
JA
1845 }
1846}
f29b25a3
JA
1847
1848/*
1849 * Returns the index that matches the filename, or -1 if not there
1850 */
1851int get_fileno(struct thread_data *td, const char *fname)
1852{
1853 struct fio_file *f;
1854 unsigned int i;
1855
1856 for_each_file(td, f, i)
1857 if (!strcmp(f->file_name, fname))
1858 return i;
1859
1860 return -1;
1861}
1862
1863/*
1864 * For log usage, where we add/open/close files automatically
1865 */
1866void free_release_files(struct thread_data *td)
1867{
1868 close_files(td);
66ee4002
JA
1869 td->o.nr_files = 0;
1870 td->o.open_files = 0;
f29b25a3 1871 td->files_index = 0;
f29b25a3 1872}
33c48814
JA
1873
1874void fio_file_reset(struct thread_data *td, struct fio_file *f)
1875{
f1dfb668
JA
1876 int i;
1877
1878 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1879 f->last_pos[i] = f->file_offset;
1880 f->last_start[i] = -1ULL;
1881 }
1882
967d1b63 1883 if (fio_file_axmap(f))
33c48814 1884 axmap_reset(f->io_axmap);
967d1b63 1885 else if (fio_file_lfsr(f))
33c48814 1886 lfsr_reset(&f->lfsr, td->rand_seeds[FIO_RAND_BLOCK_OFF]);
bfbdd35b
BVA
1887
1888 zbd_file_reset(td, f);
33c48814 1889}
002fe734 1890
747b3105 1891bool fio_files_done(struct thread_data *td)
002fe734
JA
1892{
1893 struct fio_file *f;
1894 unsigned int i;
1895
1896 for_each_file(td, f, i)
1897 if (!fio_file_done(f))
747b3105 1898 return false;
002fe734 1899
747b3105 1900 return true;
002fe734 1901}
bcbfeefa
CE
1902
1903/* free memory used in initialization phase only */
190b8f0c
CF
1904void filesetup_mem_free(void)
1905{
bcbfeefa
CE
1906 free_already_allocated();
1907}
47534cda
TK
1908
1909/*
1910 * This function is for platforms which support direct I/O but not O_DIRECT.
1911 */
1912int fio_set_directio(struct thread_data *td, struct fio_file *f)
1913{
1914#ifdef FIO_OS_DIRECTIO
2905de74 1915 int ret = fio_set_odirect(f);
47534cda
TK
1916
1917 if (ret) {
1918 td_verror(td, ret, "fio_set_directio");
1919#if defined(__sun__)
1920 if (ret == ENOTTY) { /* ENOTTY suggests RAW device or ZFS */
1921 log_err("fio: doing directIO to RAW devices or ZFS not supported\n");
1922 } else {
1923 log_err("fio: the file system does not seem to support direct IO\n");
1924 }
1925#else
1926 log_err("fio: the file system does not seem to support direct IO\n");
1927#endif
1928 return -1;
1929 }
1930
1931 return 0;
1932#else
51102e0d 1933 log_err("fio: direct IO is not supported on this host operating system\n");
47534cda
TK
1934 return -1;
1935#endif
1936}