configure: check for gtk version using pkg-config
[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
JA
831 fm = calloc(1, sizeof(*fm));
832 strncpy(fm->__base, buf, sizeof(fm->__base) - 1);
2e3bd4c2
JA
833 fm->base = basename(fm->__base);
834 fm->key = sb.st_dev;
835 flist_add(&fm->list, &list);
836 }
837
2e3bd4c2
JA
838 flist_for_each_safe(n, tmp, &list) {
839 unsigned long long sz;
840
841 fm = flist_entry(n, struct fio_mount, list);
842 flist_del(&fm->list);
843
c08ad04c 844 sz = get_fs_free_size(fm->base);
2e3bd4c2
JA
845 if (sz && sz != -1ULL)
846 ret += sz;
847
848 free(fm);
849 }
850
851 return ret;
852}
853
bedc9dc2 854uint64_t get_start_offset(struct thread_data *td, struct fio_file *f)
ce95d651 855{
bedc9dc2 856 struct thread_options *o = &td->o;
872e0415
JA
857 unsigned long long align_bs;
858 unsigned long long offset;
bedc9dc2
JA
859
860 if (o->file_append && f->filetype == FIO_TYPE_FILE)
861 return f->real_file_size;
862
89978a6b 863 if (o->start_offset_percent > 0) {
872e0415 864 /*
83c8b093 865 * if offset_align is provided, set initial offset
872e0415 866 */
83c8b093
JF
867 if (fio_option_is_set(o, start_offset_align)) {
868 align_bs = o->start_offset_align;
872e0415
JA
869 } else {
870 /* else take the minimum block size */
89978a6b
BW
871 align_bs = td_min_bs(td);
872 }
873
874 /* calculate the raw offset */
875 offset = (f->real_file_size * o->start_offset_percent / 100) +
876 (td->subjob_number * o->offset_increment);
877
872e0415
JA
878 /*
879 * block align the offset at the next available boundary at
880 * ceiling(offset / align_bs) * align_bs
881 */
89978a6b
BW
882 offset = (offset / align_bs + (offset % align_bs != 0)) * align_bs;
883
872e0415
JA
884 } else {
885 /* start_offset_percent not set */
f0d13935
JA
886 offset = o->start_offset +
887 td->subjob_number * o->offset_increment;
89978a6b 888 }
872e0415 889
89978a6b 890 return offset;
ce95d651
DE
891}
892
95af8dd5
KZ
893static bool create_work_dirs(struct thread_data *td, const char *fname)
894{
895 char path[PATH_MAX];
896 char *start, *end;
897
898 if (td->o.directory) {
899 snprintf(path, PATH_MAX, "%s%c%s", td->o.directory,
900 FIO_OS_PATH_SEPARATOR, fname);
901 start = strstr(path, fname);
902 } else {
903 snprintf(path, PATH_MAX, "%s", fname);
904 start = path;
905 }
906
907 end = start;
908 while ((end = strchr(end, FIO_OS_PATH_SEPARATOR)) != NULL) {
909 if (end == start)
910 break;
911 *end = '\0';
912 errno = 0;
913#ifdef CONFIG_HAVE_MKDIR_TWO
914 if (mkdir(path, 0600) && errno != EEXIST) {
915#else
916 if (mkdir(path) && errno != EEXIST) {
917#endif
918 log_err("fio: failed to create dir (%s): %d\n",
919 start, errno);
920 return false;
921 }
922 *end = FIO_OS_PATH_SEPARATOR;
923 end++;
924 }
925 td->flags |= TD_F_DIRS_CREATED;
926 return true;
927}
928
7bb48f84
JA
929/*
930 * Open the files and setup files sizes, creating files if necessary.
931 */
53cdc686
JA
932int setup_files(struct thread_data *td)
933{
7bb48f84 934 unsigned long long total_size, extend_size;
de98bd30 935 struct thread_options *o = &td->o;
53cdc686 936 struct fio_file *f;
002fe734 937 unsigned int i, nr_fs_extra = 0;
000b0803 938 int err = 0, need_extend;
e90391eb 939 int old_state;
5fff9543 940 const unsigned long long bs = td_min_bs(td);
002fe734 941 uint64_t fs = 0;
53cdc686 942
ee56ad50
JA
943 dprint(FD_FILE, "setup files\n");
944
8edd973d 945 old_state = td_bump_runstate(td, TD_SETTING_UP);
e90391eb 946
95af8dd5
KZ
947 for_each_file(td, f, i) {
948 if (!td_ioengine_flagged(td, FIO_DISKLESSIO) &&
949 strchr(f->file_name, FIO_OS_PATH_SEPARATOR) &&
950 !(td->flags & TD_F_DIRS_CREATED) &&
951 !create_work_dirs(td, f->file_name))
952 goto err_out;
953 }
954
53cdc686 955 /*
79591fa9
TK
956 * Find out physical size of files or devices for this thread,
957 * before we determine I/O size and range of our targets.
958 * If ioengine defines a setup() method, it's responsible for
7bb48f84
JA
959 * opening the files and setting f->real_file_size to indicate
960 * the valid range for that file.
53cdc686
JA
961 */
962 if (td->io_ops->setup)
7bb48f84
JA
963 err = td->io_ops->setup(td);
964 else
bab3fd58 965 err = get_file_sizes(td);
53cdc686 966
f1027063 967 if (err)
e90391eb 968 goto err_out;
f1027063 969
934c3085
AK
970 if (o->read_iolog_file)
971 goto done;
1df4ee29 972
0a7eb121 973 /*
7bb48f84
JA
974 * check sizes. if the files/devices do not exist and the size
975 * isn't passed to fio, abort.
0a7eb121 976 */
7bb48f84
JA
977 total_size = 0;
978 for_each_file(td, f, i) {
49a416bd 979 f->fileno = i;
7bb48f84
JA
980 if (f->real_file_size == -1ULL)
981 total_size = -1ULL;
982 else
983 total_size += f->real_file_size;
984 }
0a7eb121 985
de98bd30 986 if (o->fill_device)
2e3bd4c2
JA
987 td->fill_device_size = get_fs_free_counts(td);
988
7bb48f84
JA
989 /*
990 * device/file sizes are zero and no size given, punt
991 */
de98bd30 992 if ((!total_size || total_size == -1ULL) && !o->size &&
9b87f09b 993 !td_ioengine_flagged(td, FIO_NOIO) && !o->fill_device &&
de98bd30
JA
994 !(o->nr_files && (o->file_size_low || o->file_size_high))) {
995 log_err("%s: you need to specify size=\n", o->name);
e1161c32 996 td_verror(td, EINVAL, "total_file_size");
e90391eb 997 goto err_out;
53cdc686
JA
998 }
999
002fe734
JA
1000 /*
1001 * Calculate per-file size and potential extra size for the
79591fa9 1002 * first files, if needed (i.e. if we don't have a fixed size).
002fe734 1003 */
d1e78e6b 1004 if (!o->file_size_low && o->nr_files) {
002fe734
JA
1005 uint64_t all_fs;
1006
1007 fs = o->size / o->nr_files;
1008 all_fs = fs * o->nr_files;
1009
1010 if (all_fs < o->size)
1011 nr_fs_extra = (o->size - all_fs) / bs;
1012 }
1013
7bb48f84
JA
1014 /*
1015 * now file sizes are known, so we can set ->io_size. if size= is
1016 * not given, ->io_size is just equal to ->real_file_size. if size
1017 * is given, ->io_size is size / nr_files.
1018 */
1019 extend_size = total_size = 0;
1020 need_extend = 0;
1021 for_each_file(td, f, i) {
bedc9dc2 1022 f->file_offset = get_start_offset(td, f);
bcdedd0a 1023
79591fa9
TK
1024 /*
1025 * Update ->io_size depending on options specified.
1026 * ->file_size_low being 0 means filesize option isn't set.
1027 * Non zero ->file_size_low equals ->file_size_high means
1028 * filesize option is set in a fixed size format.
1029 * Non zero ->file_size_low not equals ->file_size_high means
1030 * filesize option is set in a range format.
1031 */
de98bd30 1032 if (!o->file_size_low) {
7bb48f84 1033 /*
79591fa9 1034 * no file size or range given, file size is equal to
c4aa2d08 1035 * total size divided by number of files. If the size
002fe734
JA
1036 * doesn't divide nicely with the min blocksize,
1037 * make the first files bigger.
7bb48f84 1038 */
002fe734
JA
1039 f->io_size = fs;
1040 if (nr_fs_extra) {
1041 nr_fs_extra--;
1042 f->io_size += bs;
1043 }
1044
c4aa2d08 1045 /*
c6dfd837
TK
1046 * We normally don't come here for regular files, but
1047 * if the result is 0 for a regular file, set it to the
1048 * real file size. This could be size of the existing
1049 * one if it already exists, but otherwise will be set
1050 * to 0. A new file won't be created because
c4aa2d08
TK
1051 * ->io_size + ->file_offset equals ->real_file_size.
1052 */
1053 if (!f->io_size) {
1054 if (f->file_offset > f->real_file_size)
1055 goto err_offset;
273f8c91 1056 f->io_size = f->real_file_size - f->file_offset;
c4aa2d08
TK
1057 if (!f->io_size)
1058 log_info("fio: file %s may be ignored\n",
1059 f->file_name);
1060 }
de98bd30
JA
1061 } else if (f->real_file_size < o->file_size_low ||
1062 f->real_file_size > o->file_size_high) {
1063 if (f->file_offset > o->file_size_low)
bcdedd0a 1064 goto err_offset;
7bb48f84
JA
1065 /*
1066 * file size given. if it's fixed, use that. if it's a
1067 * range, generate a random size in-between.
1068 */
de98bd30
JA
1069 if (o->file_size_low == o->file_size_high)
1070 f->io_size = o->file_size_low - f->file_offset;
1071 else {
5ec10eaa
JA
1072 f->io_size = get_rand_file_size(td)
1073 - f->file_offset;
1074 }
65bdb10a 1075 } else
bcdedd0a 1076 f->io_size = f->real_file_size - f->file_offset;
53cdc686 1077
7bb48f84
JA
1078 if (f->io_size == -1ULL)
1079 total_size = -1ULL;
4d002569 1080 else {
408874da 1081 if (o->size_percent && o->size_percent != 100) {
76e4bb4f
SW
1082 uint64_t file_size;
1083
1084 file_size = f->io_size + f->file_offset;
1085 f->io_size = (file_size *
1086 o->size_percent) / 100;
1087 if (f->io_size > (file_size - f->file_offset))
1088 f->io_size = file_size - f->file_offset;
1089
e391c704
JA
1090 f->io_size -= (f->io_size % td_min_bs(td));
1091 }
7bb48f84 1092 total_size += f->io_size;
4d002569 1093 }
7bb48f84
JA
1094
1095 if (f->filetype == FIO_TYPE_FILE &&
bcdedd0a 1096 (f->io_size + f->file_offset) > f->real_file_size &&
9b87f09b 1097 !td_ioengine_flagged(td, FIO_DISKLESSIO)) {
5fd31680
JA
1098 if (!o->create_on_open) {
1099 need_extend++;
814452bd 1100 extend_size += (f->io_size + f->file_offset);
43558406 1101 fio_file_set_extend(f);
5fd31680 1102 } else
814452bd 1103 f->real_file_size = f->io_size + f->file_offset;
5ec10eaa 1104 }
7bb48f84 1105 }
53cdc686 1106
66347cfa
DE
1107 if (td->o.block_error_hist) {
1108 int len;
1109
1110 assert(td->o.nr_files == 1); /* checked in fixup_options */
1111 f = td->files[0];
1112 len = f->io_size / td->o.bs[DDIR_TRIM];
1113 if (len > MAX_NR_BLOCK_INFOS || len <= 0) {
1114 log_err("fio: cannot calculate block histogram with "
1115 "%d trim blocks, maximum %d\n",
1116 len, MAX_NR_BLOCK_INFOS);
1117 td_verror(td, EINVAL, "block_error_hist");
1118 goto err_out;
1119 }
1120
1121 td->ts.nr_block_infos = len;
8a68c41c 1122 for (i = 0; i < len; i++)
66347cfa
DE
1123 td->ts.block_infos[i] =
1124 BLOCK_INFO(0, BLOCK_STATE_UNINIT);
1125 } else
1126 td->ts.nr_block_infos = 0;
1127
0bc27b0b 1128 if (!o->size || (total_size && o->size > total_size))
de98bd30 1129 o->size = total_size;
21972cde 1130
d1faa06d
JA
1131 if (o->size < td_min_bs(td)) {
1132 log_err("fio: blocksize too large for data set\n");
1133 goto err_out;
1134 }
1135
7bb48f84 1136 /*
79591fa9
TK
1137 * See if we need to extend some files, typically needed when our
1138 * target regular files don't exist yet, but our jobs require them
1139 * initially due to read I/Os.
7bb48f84
JA
1140 */
1141 if (need_extend) {
1142 temp_stall_ts = 1;
7c5f4cdb
TK
1143 if (output_format & FIO_OUTPUT_NORMAL) {
1144 log_info("%s: Laying out IO file%s (%u file%s / %s%lluMiB)\n",
1145 o->name,
1146 need_extend > 1 ? "s" : "",
1147 need_extend,
1148 need_extend > 1 ? "s" : "",
1149 need_extend > 1 ? "total " : "",
1150 extend_size >> 20);
1151 }
7bb48f84
JA
1152
1153 for_each_file(td, f, i) {
5e0074c2 1154 unsigned long long old_len = -1ULL, extend_len = -1ULL;
3baddf24 1155
d6aed795 1156 if (!fio_file_extend(f))
7bb48f84
JA
1157 continue;
1158
409b3417 1159 assert(f->filetype == FIO_TYPE_FILE);
d6aed795 1160 fio_file_clear_extend(f);
de98bd30 1161 if (!o->fill_device) {
5e0074c2 1162 old_len = f->real_file_size;
0b9d69ec
JA
1163 extend_len = f->io_size + f->file_offset -
1164 old_len;
5e0074c2 1165 }
bcdedd0a 1166 f->real_file_size = (f->io_size + f->file_offset);
7bb48f84
JA
1167 err = extend_file(td, f);
1168 if (err)
3baddf24 1169 break;
5e0074c2 1170
3baddf24
JA
1171 err = __file_invalidate_cache(td, f, old_len,
1172 extend_len);
9824f73b
JA
1173
1174 /*
1175 * Shut up static checker
1176 */
1177 if (f->fd != -1)
1178 close(f->fd);
1179
3baddf24
JA
1180 f->fd = -1;
1181 if (err)
7bb48f84
JA
1182 break;
1183 }
1184 temp_stall_ts = 0;
1185 }
1186
1187 if (err)
e90391eb 1188 goto err_out;
7bb48f84 1189
ea966f81
JA
1190 /*
1191 * iolog already set the total io size, if we read back
1192 * stored entries.
1193 */
77731b29 1194 if (!o->read_iolog_file) {
5be9bf09
TK
1195 if (o->io_size)
1196 td->total_io_size = o->io_size * o->loops;
77731b29
JA
1197 else
1198 td->total_io_size = o->size * o->loops;
1199 }
25460cf6
JA
1200
1201done:
de98bd30 1202 if (o->create_only)
25460cf6
JA
1203 td->done = 1;
1204
8edd973d 1205 td_restore_runstate(td, old_state);
bfbdd35b
BVA
1206
1207 if (td->o.zone_mode == ZONE_MODE_ZBD) {
1208 err = zbd_init(td);
1209 if (err)
1210 goto err_out;
1211 }
7bb48f84 1212 return 0;
bfbdd35b 1213
bcdedd0a 1214err_offset:
de98bd30 1215 log_err("%s: you need to specify valid offset=\n", o->name);
e90391eb 1216err_out:
8edd973d 1217 td_restore_runstate(td, old_state);
bcdedd0a 1218 return 1;
53cdc686
JA
1219}
1220
c139f3b4 1221bool pre_read_files(struct thread_data *td)
afad68f7
ZY
1222{
1223 struct fio_file *f;
1224 unsigned int i;
1225
1226 dprint(FD_FILE, "pre_read files\n");
1227
1228 for_each_file(td, f, i) {
c139f3b4
JA
1229 if (!pre_read_file(td, f))
1230 return false;
afad68f7
ZY
1231 }
1232
c139f3b4 1233 return true;
afad68f7
ZY
1234}
1235
3a03f0cf 1236static void __init_rand_distribution(struct thread_data *td, struct fio_file *f)
9c6f6316 1237{
2316296a 1238 unsigned int range_size, seed;
abb60c32 1239 uint64_t nranges;
42da5c8b 1240 uint64_t fsize;
9c6f6316
JA
1241
1242 range_size = min(td->o.min_bs[DDIR_READ], td->o.min_bs[DDIR_WRITE]);
42da5c8b 1243 fsize = min(f->real_file_size, f->io_size);
9c6f6316 1244
abb60c32 1245 nranges = (fsize + range_size - 1ULL) / range_size;
9c6f6316 1246
2316296a 1247 seed = jhash(f->file_name, strlen(f->file_name), 0) * td->thread_number;
8425687e
JA
1248 if (!td->o.rand_repeatable)
1249 seed = td->rand_seeds[4];
1250
9c6f6316 1251 if (td->o.random_distribution == FIO_RAND_DIST_ZIPF)
888677a4 1252 zipf_init(&f->zipf, nranges, td->o.zipf_theta.u.f, seed);
56d9fa4b 1253 else if (td->o.random_distribution == FIO_RAND_DIST_PARETO)
888677a4 1254 pareto_init(&f->zipf, nranges, td->o.pareto_h.u.f, seed);
56d9fa4b 1255 else if (td->o.random_distribution == FIO_RAND_DIST_GAUSS)
f88cd222 1256 gauss_init(&f->gauss, nranges, td->o.gauss_dev.u.f, seed);
9c6f6316
JA
1257}
1258
4d832322 1259static bool init_rand_distribution(struct thread_data *td)
9c6f6316
JA
1260{
1261 struct fio_file *f;
1262 unsigned int i;
1263 int state;
1264
1265 if (td->o.random_distribution == FIO_RAND_DIST_RANDOM)
4d832322 1266 return false;
9c6f6316 1267
8edd973d
JA
1268 state = td_bump_runstate(td, TD_SETTING_UP);
1269
9c6f6316
JA
1270 for_each_file(td, f, i)
1271 __init_rand_distribution(td, f);
8edd973d
JA
1272
1273 td_restore_runstate(td, state);
4d832322 1274 return true;
9c6f6316
JA
1275}
1276
75f90d5f
JA
1277/*
1278 * Check if the number of blocks exceeds the randomness capability of
1279 * the selected generator. Tausworthe is 32-bit, the others are fullly
1280 * 64-bit capable.
1281 */
1282static int check_rand_gen_limits(struct thread_data *td, struct fio_file *f,
1283 uint64_t blocks)
1284{
1285 if (blocks <= FRAND32_MAX)
1286 return 0;
1287 if (td->o.random_generator != FIO_RAND_GEN_TAUSWORTHE)
1288 return 0;
1289
1290 /*
1291 * If the user hasn't specified a random generator, switch
1292 * to tausworthe64 with informational warning. If the user did
1293 * specify one, just warn.
1294 */
1295 log_info("fio: file %s exceeds 32-bit tausworthe random generator.\n",
1296 f->file_name);
1297
1298 if (!fio_option_is_set(&td->o, random_generator)) {
1299 log_info("fio: Switching to tausworthe64. Use the "
1300 "random_generator= option to get rid of this "
4e795a3e 1301 "warning.\n");
75f90d5f
JA
1302 td->o.random_generator = FIO_RAND_GEN_TAUSWORTHE64;
1303 return 0;
1304 }
1305
1306 /*
1307 * Just make this information to avoid breaking scripts.
1308 */
1309 log_info("fio: Use the random_generator= option to switch to lfsr or "
1310 "tausworthe64.\n");
1311 return 0;
1312}
1313
4d832322 1314bool init_random_map(struct thread_data *td)
68727076 1315{
51ede0b1 1316 unsigned long long blocks;
68727076
JA
1317 struct fio_file *f;
1318 unsigned int i;
1319
9c6f6316 1320 if (init_rand_distribution(td))
4d832322 1321 return true;
3831a843 1322 if (!td_random(td))
4d832322 1323 return true;
68727076
JA
1324
1325 for_each_file(td, f, i) {
42da5c8b 1326 uint64_t fsize = min(f->real_file_size, f->io_size);
38f30c81 1327
42da5c8b 1328 blocks = fsize / (unsigned long long) td->o.rw_min_bs;
53737ae0 1329
75f90d5f 1330 if (check_rand_gen_limits(td, f, blocks))
4d832322 1331 return false;
37fbd7e9 1332
8055e41d 1333 if (td->o.random_generator == FIO_RAND_GEN_LFSR) {
9781c080 1334 uint64_t seed;
82af46be
JA
1335
1336 seed = td->rand_seeds[FIO_RAND_BLOCK_OFF];
9c0f3f32 1337
967d1b63
JA
1338 if (!lfsr_init(&f->lfsr, blocks, seed, 0)) {
1339 fio_file_set_lfsr(f);
8055e41d 1340 continue;
967d1b63 1341 }
3831a843 1342 } else if (!td->o.norandommap) {
7ebd796f 1343 f->io_axmap = axmap_new(blocks);
967d1b63
JA
1344 if (f->io_axmap) {
1345 fio_file_set_axmap(f);
8055e41d 1346 continue;
967d1b63 1347 }
1cad7121
JA
1348 } else if (td->o.norandommap)
1349 continue;
ceadd59e 1350
2b386d25 1351 if (!td->o.softrandommap) {
5ec10eaa
JA
1352 log_err("fio: failed allocating random map. If running"
1353 " a large number of jobs, try the 'norandommap'"
2b386d25
JA
1354 " option or set 'softrandommap'. Or give"
1355 " a larger --alloc-size to fio.\n");
4d832322 1356 return false;
68727076 1357 }
303032ae
JA
1358
1359 log_info("fio: file %s failed allocating random map. Running "
1360 "job without.\n", f->file_name);
68727076
JA
1361 }
1362
4d832322 1363 return true;
68727076
JA
1364}
1365
53cdc686
JA
1366void close_files(struct thread_data *td)
1367{
0ab8db89 1368 struct fio_file *f;
af52b345 1369 unsigned int i;
53cdc686 1370
2be3eec3
JA
1371 for_each_file(td, f, i) {
1372 if (fio_file_open(f))
1373 td_io_close_file(td, f);
1374 }
24ffd2c2
JA
1375}
1376
1377void close_and_free_files(struct thread_data *td)
1378{
1379 struct fio_file *f;
1380 unsigned int i;
cb9bf647 1381 bool use_free = td_ioengine_flagged(td, FIO_NOFILEHASH);
24ffd2c2 1382
ee56ad50
JA
1383 dprint(FD_FILE, "close files\n");
1384
0ab8db89 1385 for_each_file(td, f, i) {
38ef9c90
CF
1386 if (td->o.unlink && f->filetype == FIO_TYPE_FILE) {
1387 dprint(FD_FILE, "free unlink %s\n", f->file_name);
1388 td_io_unlink_file(td, f);
1389 }
1390
22a57ba8
JA
1391 if (fio_file_open(f))
1392 td_io_close_file(td, f);
1393
b9fbcf21 1394 remove_file_hash(f);
b3dc7f07 1395
b5f4d8ba
JA
1396 if (td->o.unlink && f->filetype == FIO_TYPE_FILE) {
1397 dprint(FD_FILE, "free unlink %s\n", f->file_name);
38ef9c90 1398 td_io_unlink_file(td, f);
b5f4d8ba
JA
1399 }
1400
bfbdd35b
BVA
1401 zbd_free_zone_info(f);
1402
cb9bf647
JB
1403 if (use_free)
1404 free(f->file_name);
1405 else
1406 sfree(f->file_name);
fa1da865 1407 f->file_name = NULL;
967d1b63
JA
1408 if (fio_file_axmap(f)) {
1409 axmap_free(f->io_axmap);
1410 f->io_axmap = NULL;
1411 }
cb9bf647
JB
1412 if (use_free)
1413 free(f);
1414 else
1415 sfree(f);
53cdc686 1416 }
b4a6a59a 1417
2dc1bbeb 1418 td->o.filename = NULL;
cade3ef4 1419 free(td->files);
d7df1d13 1420 free(td->file_locks);
9efef3c4 1421 td->files_index = 0;
b4a6a59a 1422 td->files = NULL;
d7df1d13 1423 td->file_locks = NULL;
27ddbfa0 1424 td->o.file_lock_mode = FILE_LOCK_NONE;
2dc1bbeb 1425 td->o.nr_files = 0;
53cdc686 1426}
af52b345 1427
e3bab463 1428static void get_file_type(struct fio_file *f)
af52b345
JA
1429{
1430 struct stat sb;
1431
66159828
JA
1432 if (!strcmp(f->file_name, "-"))
1433 f->filetype = FIO_TYPE_PIPE;
1434 else
1435 f->filetype = FIO_TYPE_FILE;
af52b345 1436
d5b78f5a 1437#ifdef WIN32
3892182a
BC
1438 /* \\.\ is the device namespace in Windows, where every file is
1439 * a block device */
1440 if (strncmp(f->file_name, "\\\\.\\", 4) == 0)
686fbd31 1441 f->filetype = FIO_TYPE_BLOCK;
d5b78f5a 1442#endif
3892182a 1443
b30d395e 1444 if (!stat(f->file_name, &sb)) {
3892182a 1445 if (S_ISBLK(sb.st_mode))
686fbd31 1446 f->filetype = FIO_TYPE_BLOCK;
af52b345
JA
1447 else if (S_ISCHR(sb.st_mode))
1448 f->filetype = FIO_TYPE_CHAR;
b5605e9d
JA
1449 else if (S_ISFIFO(sb.st_mode))
1450 f->filetype = FIO_TYPE_PIPE;
af52b345
JA
1451 }
1452}
1453
1b2a83dc 1454static bool __is_already_allocated(const char *fname, bool set)
190b8f0c 1455{
90426237 1456 struct flist_head *entry;
1b2a83dc 1457 bool ret;
bcbfeefa 1458
1b2a83dc
JA
1459 ret = file_bloom_exists(fname, set);
1460 if (!ret)
1461 return ret;
90426237
JA
1462
1463 flist_for_each(entry, &filename_list) {
04d6530f 1464 struct file_name *fn;
90426237 1465
04d6530f
JA
1466 fn = flist_entry(entry, struct file_name, list);
1467
1468 if (!strcmp(fn->filename, fname))
1469 return true;
90426237
JA
1470 }
1471
04d6530f 1472 return false;
bcbfeefa
CE
1473}
1474
04d6530f 1475static bool is_already_allocated(const char *fname)
bcbfeefa 1476{
04d6530f 1477 bool ret;
bcbfeefa 1478
90426237 1479 fio_file_hash_lock();
1b2a83dc 1480 ret = __is_already_allocated(fname, false);
90426237 1481 fio_file_hash_unlock();
04d6530f 1482
90426237
JA
1483 return ret;
1484}
bcbfeefa 1485
90426237
JA
1486static void set_already_allocated(const char *fname)
1487{
1488 struct file_name *fn;
1489
1490 fn = malloc(sizeof(struct file_name));
1491 fn->filename = strdup(fname);
1492
1493 fio_file_hash_lock();
1b2a83dc 1494 if (!__is_already_allocated(fname, true)) {
90426237
JA
1495 flist_add_tail(&fn->list, &filename_list);
1496 fn = NULL;
bcbfeefa 1497 }
90426237 1498 fio_file_hash_unlock();
bcbfeefa 1499
90426237
JA
1500 if (fn) {
1501 free(fn->filename);
1502 free(fn);
1503 }
bcbfeefa
CE
1504}
1505
190b8f0c
CF
1506static void free_already_allocated(void)
1507{
bcbfeefa
CE
1508 struct flist_head *entry, *tmp;
1509 struct file_name *fn;
1510
90426237
JA
1511 if (flist_empty(&filename_list))
1512 return;
1513
1514 fio_file_hash_lock();
1515 flist_for_each_safe(entry, tmp, &filename_list) {
1516 fn = flist_entry(entry, struct file_name, list);
1517 free(fn->filename);
1518 flist_del(&fn->list);
1519 free(fn);
bcbfeefa 1520 }
90426237
JA
1521
1522 fio_file_hash_unlock();
bcbfeefa
CE
1523}
1524
7b5cb700
JA
1525static struct fio_file *alloc_new_file(struct thread_data *td)
1526{
1527 struct fio_file *f;
1528
cb9bf647
JB
1529 if (td_ioengine_flagged(td, FIO_NOFILEHASH))
1530 f = calloc(1, sizeof(*f));
1531 else
e0b3258b 1532 f = scalloc(1, sizeof(*f));
7b5cb700 1533 if (!f) {
7b5cb700
JA
1534 assert(0);
1535 return NULL;
1536 }
1537
1538 f->fd = -1;
1539 f->shadow_fd = -1;
1540 fio_file_reset(td, f);
1541 return f;
1542}
1543
04d6530f
JA
1544bool exists_and_not_regfile(const char *filename)
1545{
1546 struct stat sb;
1547
1548 if (lstat(filename, &sb) == -1)
1549 return false;
1550
1551#ifndef WIN32 /* NOT Windows */
1552 if (S_ISREG(sb.st_mode))
1553 return false;
1554#else
1555 /* \\.\ is the device namespace in Windows, where every file
1556 * is a device node */
1557 if (S_ISREG(sb.st_mode) && strncmp(filename, "\\\\.\\", 4) != 0)
1558 return false;
1559#endif
1560
1561 return true;
1562}
1563
5903e7b7 1564int add_file(struct thread_data *td, const char *fname, int numjob, int inc)
af52b345 1565{
7b4e4fe5 1566 int cur_files = td->files_index;
bd0ee748 1567 char file_name[PATH_MAX];
af52b345 1568 struct fio_file *f;
bd0ee748 1569 int len = 0;
af52b345 1570
ee56ad50
JA
1571 dprint(FD_FILE, "add file %s\n", fname);
1572
bcbfeefa 1573 if (td->o.directory)
922a5be8
JA
1574 len = set_name_idx(file_name, PATH_MAX, td->o.directory, numjob,
1575 td->o.unique_filename);
bcbfeefa
CE
1576
1577 sprintf(file_name + len, "%s", fname);
1578
1579 /* clean cloned siblings using existing files */
04d6530f
JA
1580 if (numjob && is_already_allocated(file_name) &&
1581 !exists_and_not_regfile(fname))
bcbfeefa
CE
1582 return 0;
1583
7b5cb700 1584 f = alloc_new_file(td);
bd0ee748 1585
fc99bc0d 1586 if (td->files_size <= td->files_index) {
1983e327 1587 unsigned int new_size = td->o.nr_files + 1;
126d65c6 1588
fc99bc0d
JA
1589 dprint(FD_FILE, "resize file array to %d files\n", new_size);
1590
1591 td->files = realloc(td->files, new_size * sizeof(f));
d537c08b
JM
1592 if (td->files == NULL) {
1593 log_err("fio: realloc OOM\n");
1594 assert(0);
1595 }
d7df1d13
JA
1596 if (td->o.file_lock_mode != FILE_LOCK_NONE) {
1597 td->file_locks = realloc(td->file_locks, new_size);
1598 if (!td->file_locks) {
1599 log_err("fio: realloc OOM\n");
1600 assert(0);
1601 }
1602 td->file_locks[cur_files] = FILE_LOCK_NONE;
1603 }
fc99bc0d
JA
1604 td->files_size = new_size;
1605 }
8bb7679e 1606 td->files[cur_files] = f;
89ac1d48 1607 f->fileno = cur_files;
126d65c6 1608
07eb79df
JA
1609 /*
1610 * init function, io engine may not be loaded yet
1611 */
9b87f09b 1612 if (td->io_ops && td_ioengine_flagged(td, FIO_DISKLESSIO))
07eb79df
JA
1613 f->real_file_size = -1ULL;
1614
cb9bf647
JB
1615 if (td_ioengine_flagged(td, FIO_NOFILEHASH))
1616 f->file_name = strdup(file_name);
1617 else
1618 f->file_name = smalloc_strdup(file_name);
b2e6494c
JA
1619
1620 /* can't handle smalloc failure from here */
1621 assert(f->file_name);
0b9d69ec 1622
e3bab463 1623 get_file_type(f);
af52b345 1624
4d4e80f2
JA
1625 switch (td->o.file_lock_mode) {
1626 case FILE_LOCK_NONE:
1627 break;
1628 case FILE_LOCK_READWRITE:
d7df1d13 1629 f->rwlock = fio_rwlock_init();
4d4e80f2
JA
1630 break;
1631 case FILE_LOCK_EXCLUSIVE:
971caeb1 1632 f->lock = fio_sem_init(FIO_SEM_UNLOCKED);
4d4e80f2
JA
1633 break;
1634 default:
1635 log_err("fio: unknown lock mode: %d\n", td->o.file_lock_mode);
1636 assert(0);
1637 }
29c1349f 1638
7b4e4fe5 1639 td->files_index++;
f29b25a3 1640
084a5475
JA
1641 if (td->o.numjobs > 1)
1642 set_already_allocated(file_name);
bcbfeefa 1643
5903e7b7
JA
1644 if (inc)
1645 td->o.nr_files++;
1646
5ec10eaa
JA
1647 dprint(FD_FILE, "file %p \"%s\" added at %d\n", f, f->file_name,
1648 cur_files);
9efef3c4 1649
f29b25a3 1650 return cur_files;
af52b345 1651}
0ad920e7 1652
49ffb4a2
JA
1653int add_file_exclusive(struct thread_data *td, const char *fname)
1654{
1655 struct fio_file *f;
1656 unsigned int i;
1657
1658 for_each_file(td, f, i) {
1659 if (!strcmp(f->file_name, fname))
1660 return i;
1661 }
1662
5903e7b7 1663 return add_file(td, fname, 0, 1);
49ffb4a2
JA
1664}
1665
0ad920e7
JA
1666void get_file(struct fio_file *f)
1667{
8172fe97 1668 dprint(FD_FILE, "get file %s, ref=%d\n", f->file_name, f->references);
d6aed795 1669 assert(fio_file_open(f));
0ad920e7
JA
1670 f->references++;
1671}
1672
6977bcd0 1673int put_file(struct thread_data *td, struct fio_file *f)
0ad920e7 1674{
98e1ac4e 1675 int f_ret = 0, ret = 0;
6977bcd0 1676
8172fe97 1677 dprint(FD_FILE, "put file %s, ref=%d\n", f->file_name, f->references);
ee56ad50 1678
22a57ba8
JA
1679 if (!fio_file_open(f)) {
1680 assert(f->fd == -1);
6977bcd0 1681 return 0;
22a57ba8 1682 }
0ad920e7
JA
1683
1684 assert(f->references);
1685 if (--f->references)
6977bcd0 1686 return 0;
0ad920e7 1687
230f33fb
AK
1688 disk_util_dec(f->du);
1689
1690 if (td->o.file_lock_mode != FILE_LOCK_NONE)
1691 unlock_file_all(td, f);
1692
71b84caa 1693 if (should_fsync(td) && td->o.fsync_on_close) {
98e1ac4e 1694 f_ret = fsync(f->fd);
71b84caa
JA
1695 if (f_ret < 0)
1696 f_ret = errno;
1697 }
ebb1415f 1698
0ad920e7 1699 if (td->io_ops->close_file)
6977bcd0 1700 ret = td->io_ops->close_file(td, f);
1020a139 1701
98e1ac4e 1702 if (!ret)
a5fb461f 1703 ret = f_ret;
98e1ac4e 1704
0ad920e7 1705 td->nr_open_files--;
230f33fb 1706 fio_file_clear_closing(f);
d6aed795 1707 fio_file_clear_open(f);
22a57ba8 1708 assert(f->fd == -1);
6977bcd0 1709 return ret;
0ad920e7 1710}
bbf6b540 1711
4d4e80f2 1712void lock_file(struct thread_data *td, struct fio_file *f, enum fio_ddir ddir)
b2bd2bd9 1713{
4d4e80f2
JA
1714 if (!f->lock || td->o.file_lock_mode == FILE_LOCK_NONE)
1715 return;
29c1349f 1716
4d4e80f2
JA
1717 if (td->o.file_lock_mode == FILE_LOCK_READWRITE) {
1718 if (ddir == DDIR_READ)
d7df1d13 1719 fio_rwlock_read(f->rwlock);
4d4e80f2 1720 else
d7df1d13 1721 fio_rwlock_write(f->rwlock);
4d4e80f2 1722 } else if (td->o.file_lock_mode == FILE_LOCK_EXCLUSIVE)
971caeb1 1723 fio_sem_down(f->lock);
4d4e80f2 1724
d7df1d13 1725 td->file_locks[f->fileno] = td->o.file_lock_mode;
b2bd2bd9
JA
1726}
1727
4d4e80f2 1728void unlock_file(struct thread_data *td, struct fio_file *f)
b2bd2bd9 1729{
4d4e80f2
JA
1730 if (!f->lock || td->o.file_lock_mode == FILE_LOCK_NONE)
1731 return;
4d4e80f2 1732
d7df1d13
JA
1733 if (td->o.file_lock_mode == FILE_LOCK_READWRITE)
1734 fio_rwlock_unlock(f->rwlock);
1735 else if (td->o.file_lock_mode == FILE_LOCK_EXCLUSIVE)
971caeb1 1736 fio_sem_up(f->lock);
d7df1d13
JA
1737
1738 td->file_locks[f->fileno] = FILE_LOCK_NONE;
b2bd2bd9
JA
1739}
1740
4d4e80f2
JA
1741void unlock_file_all(struct thread_data *td, struct fio_file *f)
1742{
f2a2803a 1743 if (td->o.file_lock_mode == FILE_LOCK_NONE || !td->file_locks)
27ddbfa0 1744 return;
d7df1d13
JA
1745 if (td->file_locks[f->fileno] != FILE_LOCK_NONE)
1746 unlock_file(td, f);
4d4e80f2
JA
1747}
1748
13bddad9 1749static bool recurse_dir(struct thread_data *td, const char *dirname)
bbf6b540
JA
1750{
1751 struct dirent *dir;
13bddad9 1752 bool ret = false;
bbf6b540
JA
1753 DIR *D;
1754
1755 D = opendir(dirname);
1756 if (!D) {
0ddb270c
JA
1757 char buf[FIO_VERROR_SIZE];
1758
98ffb8f3 1759 snprintf(buf, FIO_VERROR_SIZE, "opendir(%s)", dirname);
0ddb270c 1760 td_verror(td, errno, buf);
13bddad9 1761 return true;
bbf6b540
JA
1762 }
1763
1764 while ((dir = readdir(D)) != NULL) {
1765 char full_path[PATH_MAX];
1766 struct stat sb;
1767
e85b2b83
JA
1768 if (!strcmp(dir->d_name, ".") || !strcmp(dir->d_name, ".."))
1769 continue;
96d32d51 1770
53a7af85 1771 sprintf(full_path, "%s%c%s", dirname, FIO_OS_PATH_SEPARATOR, dir->d_name);
bbf6b540
JA
1772
1773 if (lstat(full_path, &sb) == -1) {
1774 if (errno != ENOENT) {
1775 td_verror(td, errno, "stat");
13bddad9 1776 ret = true;
68ace9e0 1777 break;
bbf6b540
JA
1778 }
1779 }
1780
1781 if (S_ISREG(sb.st_mode)) {
5903e7b7 1782 add_file(td, full_path, 0, 1);
bbf6b540
JA
1783 continue;
1784 }
0ddb270c
JA
1785 if (!S_ISDIR(sb.st_mode))
1786 continue;
bbf6b540 1787
5ec10eaa
JA
1788 ret = recurse_dir(td, full_path);
1789 if (ret)
bbf6b540
JA
1790 break;
1791 }
1792
1793 closedir(D);
1794 return ret;
1795}
1796
1797int add_dir_files(struct thread_data *td, const char *path)
1798{
0ddb270c
JA
1799 int ret = recurse_dir(td, path);
1800
1801 if (!ret)
1802 log_info("fio: opendir added %d files\n", td->o.nr_files);
1803
1804 return ret;
bbf6b540 1805}
cade3ef4
JA
1806
1807void dup_files(struct thread_data *td, struct thread_data *org)
1808{
1809 struct fio_file *f;
1810 unsigned int i;
9efef3c4
JA
1811
1812 dprint(FD_FILE, "dup files: %d\n", org->files_index);
cade3ef4
JA
1813
1814 if (!org->files)
1815 return;
1816
9efef3c4 1817 td->files = malloc(org->files_index * sizeof(f));
cade3ef4 1818
d7df1d13
JA
1819 if (td->o.file_lock_mode != FILE_LOCK_NONE)
1820 td->file_locks = malloc(org->files_index);
1821
9efef3c4 1822 for_each_file(org, f, i) {
b0fe421a
JA
1823 struct fio_file *__f;
1824
7b5cb700 1825 __f = alloc_new_file(td);
0b9d69ec 1826
bc3456fa 1827 if (f->file_name) {
cb9bf647
JB
1828 if (td_ioengine_flagged(td, FIO_NOFILEHASH))
1829 __f->file_name = strdup(f->file_name);
1830 else
1831 __f->file_name = smalloc_strdup(f->file_name);
0b9d69ec 1832
b2e6494c
JA
1833 /* can't handle smalloc failure from here */
1834 assert(__f->file_name);
bc3456fa
AC
1835 __f->filetype = f->filetype;
1836 }
b0fe421a 1837
67ad9242
JA
1838 if (td->o.file_lock_mode == FILE_LOCK_EXCLUSIVE)
1839 __f->lock = f->lock;
1840 else if (td->o.file_lock_mode == FILE_LOCK_READWRITE)
1841 __f->rwlock = f->rwlock;
1842
b0fe421a 1843 td->files[i] = __f;
cade3ef4
JA
1844 }
1845}
f29b25a3
JA
1846
1847/*
1848 * Returns the index that matches the filename, or -1 if not there
1849 */
1850int get_fileno(struct thread_data *td, const char *fname)
1851{
1852 struct fio_file *f;
1853 unsigned int i;
1854
1855 for_each_file(td, f, i)
1856 if (!strcmp(f->file_name, fname))
1857 return i;
1858
1859 return -1;
1860}
1861
1862/*
1863 * For log usage, where we add/open/close files automatically
1864 */
1865void free_release_files(struct thread_data *td)
1866{
1867 close_files(td);
66ee4002
JA
1868 td->o.nr_files = 0;
1869 td->o.open_files = 0;
f29b25a3 1870 td->files_index = 0;
f29b25a3 1871}
33c48814
JA
1872
1873void fio_file_reset(struct thread_data *td, struct fio_file *f)
1874{
f1dfb668
JA
1875 int i;
1876
1877 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1878 f->last_pos[i] = f->file_offset;
1879 f->last_start[i] = -1ULL;
1880 }
1881
967d1b63 1882 if (fio_file_axmap(f))
33c48814 1883 axmap_reset(f->io_axmap);
967d1b63 1884 else if (fio_file_lfsr(f))
33c48814 1885 lfsr_reset(&f->lfsr, td->rand_seeds[FIO_RAND_BLOCK_OFF]);
bfbdd35b
BVA
1886
1887 zbd_file_reset(td, f);
33c48814 1888}
002fe734 1889
747b3105 1890bool fio_files_done(struct thread_data *td)
002fe734
JA
1891{
1892 struct fio_file *f;
1893 unsigned int i;
1894
1895 for_each_file(td, f, i)
1896 if (!fio_file_done(f))
747b3105 1897 return false;
002fe734 1898
747b3105 1899 return true;
002fe734 1900}
bcbfeefa
CE
1901
1902/* free memory used in initialization phase only */
190b8f0c
CF
1903void filesetup_mem_free(void)
1904{
bcbfeefa
CE
1905 free_already_allocated();
1906}
47534cda
TK
1907
1908/*
1909 * This function is for platforms which support direct I/O but not O_DIRECT.
1910 */
1911int fio_set_directio(struct thread_data *td, struct fio_file *f)
1912{
1913#ifdef FIO_OS_DIRECTIO
2905de74 1914 int ret = fio_set_odirect(f);
47534cda
TK
1915
1916 if (ret) {
1917 td_verror(td, ret, "fio_set_directio");
1918#if defined(__sun__)
1919 if (ret == ENOTTY) { /* ENOTTY suggests RAW device or ZFS */
1920 log_err("fio: doing directIO to RAW devices or ZFS not supported\n");
1921 } else {
1922 log_err("fio: the file system does not seem to support direct IO\n");
1923 }
1924#else
1925 log_err("fio: the file system does not seem to support direct IO\n");
1926#endif
1927 return -1;
1928 }
1929
1930 return 0;
1931#else
51102e0d 1932 log_err("fio: direct IO is not supported on this host operating system\n");
47534cda
TK
1933 return -1;
1934#endif
1935}