genfio: Splitting gen_template in 2 parts
[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
JA
7#include <sys/stat.h>
8#include <sys/mman.h>
bbf6b540 9#include <sys/types.h>
53cdc686
JA
10
11#include "fio.h"
f17c4392 12#include "smalloc.h"
4906e0b5 13#include "filehash.h"
ecc314ba 14#include "os/os.h"
2316296a 15#include "hash.h"
7ebd796f 16#include "lib/axmap.h"
53cdc686 17
97ac992c 18#ifdef CONFIG_LINUX_FALLOCATE
a596f047
EG
19#include <linux/falloc.h>
20#endif
21
7172cfe8
JA
22static int root_warn;
23
c592b9fe
JA
24static inline void clear_error(struct thread_data *td)
25{
26 td->error = 0;
27 td->verror[0] = '\0';
28}
29
3baddf24
JA
30/*
31 * Leaves f->fd open on success, caller must close
32 */
7bb48f84 33static int extend_file(struct thread_data *td, struct fio_file *f)
25205e97 34{
ea443657 35 int r, new_layout = 0, unlink_file = 0, flags;
25205e97
JA
36 unsigned long long left;
37 unsigned int bs;
38 char *b;
b2a15192 39
4241ea8f
JA
40 if (read_only) {
41 log_err("fio: refusing extend of file due to read-only\n");
42 return 0;
43 }
44
507a702f
JA
45 /*
46 * check if we need to lay the file out complete again. fio
47 * does that for operations involving reads, or for writes
48 * where overwrite is set
49 */
ffdfabd4
JA
50 if (td_read(td) || (td_write(td) && td->o.overwrite) ||
51 (td_write(td) && td->io_ops->flags & FIO_NOEXTEND))
507a702f 52 new_layout = 1;
ea443657
JA
53 if (td_write(td) && !td->o.overwrite)
54 unlink_file = 1;
507a702f 55
6ae1f57f 56 if (unlink_file || new_layout) {
bd199f2b 57 dprint(FD_FILE, "layout unlink %s\n", f->file_name);
982016d6 58 if ((unlink(f->file_name) < 0) && (errno != ENOENT)) {
7bb48f84
JA
59 td_verror(td, errno, "unlink");
60 return 1;
61 }
62 }
63
507a702f
JA
64 flags = O_WRONLY | O_CREAT;
65 if (new_layout)
66 flags |= O_TRUNC;
67
ee56ad50 68 dprint(FD_FILE, "open file %s, flags %x\n", f->file_name, flags);
507a702f 69 f->fd = open(f->file_name, flags, 0644);
53cdc686 70 if (f->fd < 0) {
e1161c32 71 td_verror(td, errno, "open");
53cdc686
JA
72 return 1;
73 }
74
97ac992c 75#ifdef CONFIG_POSIX_FALLOCATE
a596f047
EG
76 if (!td->o.fill_device) {
77 switch (td->o.fallocate_mode) {
78 case FIO_FALLOCATE_NONE:
79 break;
80 case FIO_FALLOCATE_POSIX:
81 dprint(FD_FILE, "posix_fallocate file %s size %llu\n",
4b91ee8f
JA
82 f->file_name,
83 (unsigned long long) f->real_file_size);
a596f047
EG
84
85 r = posix_fallocate(f->fd, 0, f->real_file_size);
86 if (r > 0) {
87 log_err("fio: posix_fallocate fails: %s\n",
88 strerror(r));
89 }
90 break;
97ac992c 91#ifdef CONFIG_LINUX_FALLOCATE
a596f047
EG
92 case FIO_FALLOCATE_KEEP_SIZE:
93 dprint(FD_FILE,
94 "fallocate(FALLOC_FL_KEEP_SIZE) "
4b91ee8f
JA
95 "file %s size %llu\n", f->file_name,
96 (unsigned long long) f->real_file_size);
7bc8c2cf 97
a596f047
EG
98 r = fallocate(f->fd, FALLOC_FL_KEEP_SIZE, 0,
99 f->real_file_size);
888677a4 100 if (r != 0)
a596f047 101 td_verror(td, errno, "fallocate");
888677a4 102
a596f047 103 break;
97ac992c 104#endif /* CONFIG_LINUX_FALLOCATE */
a596f047
EG
105 default:
106 log_err("fio: unknown fallocate mode: %d\n",
107 td->o.fallocate_mode);
108 assert(0);
7bc8c2cf
JA
109 }
110 }
97ac992c 111#endif /* CONFIG_POSIX_FALLOCATE */
9b836561 112
fc74ac1d
SL
113 if (!new_layout)
114 goto done;
115
5e0074c2
JA
116 /*
117 * The size will be -1ULL when fill_device is used, so don't truncate
118 * or fallocate this file, just write it
119 */
120 if (!td->o.fill_device) {
121 dprint(FD_FILE, "truncate file %s, size %llu\n", f->file_name,
4b91ee8f 122 (unsigned long long) f->real_file_size);
5e0074c2
JA
123 if (ftruncate(f->fd, f->real_file_size) == -1) {
124 td_verror(td, errno, "ftruncate");
125 goto err;
126 }
5e0074c2 127 }
40f8298c 128
2dc1bbeb 129 b = malloc(td->o.max_bs[DDIR_WRITE]);
53cdc686 130
7bb48f84 131 left = f->real_file_size;
53cdc686 132 while (left && !td->terminate) {
2dc1bbeb 133 bs = td->o.max_bs[DDIR_WRITE];
53cdc686
JA
134 if (bs > left)
135 bs = left;
136
cc86c395
JA
137 fill_io_buffer(td, b, bs, bs);
138
53cdc686
JA
139 r = write(f->fd, b, bs);
140
5e0074c2
JA
141 if (r > 0) {
142 left -= r;
53cdc686
JA
143 continue;
144 } else {
5e0074c2
JA
145 if (r < 0) {
146 int __e = errno;
147
148 if (__e == ENOSPC) {
149 if (td->o.fill_device)
150 break;
151 log_info("fio: ENOSPC on laying out "
152 "file, stopping\n");
153 break;
154 }
e1161c32 155 td_verror(td, errno, "write");
5e0074c2 156 } else
e1161c32 157 td_verror(td, EIO, "write");
53cdc686
JA
158
159 break;
160 }
161 }
162
ffdfabd4
JA
163 if (td->terminate) {
164 dprint(FD_FILE, "terminate unlink %s\n", f->file_name);
53cdc686 165 unlink(f->file_name);
ffdfabd4 166 } else if (td->o.create_fsync) {
98e1ac4e
JA
167 if (fsync(f->fd) < 0) {
168 td_verror(td, errno, "fsync");
169 goto err;
170 }
171 }
0d1cd207 172 if (td->o.fill_device && !td_write(td)) {
d6aed795 173 fio_file_clear_size_known(f);
5e0074c2
JA
174 if (td_io_get_file_size(td, f))
175 goto err;
176 if (f->io_size > f->real_file_size)
177 f->io_size = f->real_file_size;
178 }
53cdc686
JA
179
180 free(b);
507a702f 181done:
53cdc686
JA
182 return 0;
183err:
184 close(f->fd);
185 f->fd = -1;
186 return 1;
187}
188
afad68f7
ZY
189static int pre_read_file(struct thread_data *td, struct fio_file *f)
190{
b0f65863 191 int r, did_open = 0, old_runstate;
afad68f7
ZY
192 unsigned long long left;
193 unsigned int bs;
194 char *b;
195
9c0d2241
JA
196 if (td->io_ops->flags & FIO_PIPEIO)
197 return 0;
198
d6aed795 199 if (!fio_file_open(f)) {
b0f65863
JA
200 if (td->io_ops->open_file(td, f)) {
201 log_err("fio: cannot pre-read, failed to open file\n");
202 return 1;
203 }
204 did_open = 1;
205 }
206
207 old_runstate = td->runstate;
208 td_set_runstate(td, TD_PRE_READING);
209
afad68f7
ZY
210 bs = td->o.max_bs[DDIR_READ];
211 b = malloc(bs);
212 memset(b, 0, bs);
213
214 lseek(f->fd, f->file_offset, SEEK_SET);
215 left = f->io_size;
216
217 while (left && !td->terminate) {
218 if (bs > left)
219 bs = left;
220
221 r = read(f->fd, b, bs);
222
223 if (r == (int) bs) {
224 left -= bs;
225 continue;
226 } else {
227 td_verror(td, EIO, "pre_read");
228 break;
229 }
230 }
231
b0f65863
JA
232 td_set_runstate(td, old_runstate);
233
234 if (did_open)
235 td->io_ops->close_file(td, f);
afad68f7
ZY
236 free(b);
237 return 0;
238}
239
7bb48f84 240static unsigned long long get_rand_file_size(struct thread_data *td)
9c60ce64 241{
dc873b6f 242 unsigned long long ret, sized;
1294c3ec 243 unsigned long r;
9c60ce64 244
4c07ad86
JA
245 if (td->o.use_os_rand) {
246 r = os_random_long(&td->file_size_state);
247 sized = td->o.file_size_high - td->o.file_size_low;
248 ret = (unsigned long long) ((double) sized * (r / (OS_RAND_MAX + 1.0)));
249 } else {
250 r = __rand(&td->__file_size_state);
251 sized = td->o.file_size_high - td->o.file_size_low;
252 ret = (unsigned long long) ((double) sized * (r / (FRAND_MAX + 1.0)));
253 }
254
5ec10eaa 255 ret += td->o.file_size_low;
2dc1bbeb 256 ret -= (ret % td->o.rw_min_bs);
9c60ce64
JA
257 return ret;
258}
259
53cdc686
JA
260static int file_size(struct thread_data *td, struct fio_file *f)
261{
262 struct stat st;
263
df9c26b1 264 if (stat(f->file_name, &st) == -1) {
7bb48f84
JA
265 td_verror(td, errno, "fstat");
266 return 1;
267 }
53cdc686 268
7bb48f84 269 f->real_file_size = st.st_size;
53cdc686
JA
270 return 0;
271}
272
273static int bdev_size(struct thread_data *td, struct fio_file *f)
274{
9b836561 275 unsigned long long bytes = 0;
53cdc686
JA
276 int r;
277
df9c26b1
JA
278 if (td->io_ops->open_file(td, f)) {
279 log_err("fio: failed opening blockdev %s for size check\n",
280 f->file_name);
281 return 1;
282 }
283
ecc314ba 284 r = blockdev_size(f, &bytes);
53cdc686 285 if (r) {
e1161c32 286 td_verror(td, r, "blockdev_size");
df9c26b1 287 goto err;
53cdc686
JA
288 }
289
7ab077ab
JA
290 if (!bytes) {
291 log_err("%s: zero sized block device?\n", f->file_name);
df9c26b1 292 goto err;
7ab077ab
JA
293 }
294
53cdc686 295 f->real_file_size = bytes;
22a57ba8 296 td->io_ops->close_file(td, f);
53cdc686 297 return 0;
df9c26b1
JA
298err:
299 td->io_ops->close_file(td, f);
300 return 1;
53cdc686
JA
301}
302
4ccdccd1
JA
303static int char_size(struct thread_data *td, struct fio_file *f)
304{
305#ifdef FIO_HAVE_CHARDEV_SIZE
9b836561 306 unsigned long long bytes = 0;
4ccdccd1
JA
307 int r;
308
309 if (td->io_ops->open_file(td, f)) {
310 log_err("fio: failed opening blockdev %s for size check\n",
311 f->file_name);
312 return 1;
313 }
314
ecc314ba 315 r = chardev_size(f, &bytes);
4ccdccd1
JA
316 if (r) {
317 td_verror(td, r, "chardev_size");
318 goto err;
319 }
320
321 if (!bytes) {
322 log_err("%s: zero sized char device?\n", f->file_name);
323 goto err;
324 }
325
326 f->real_file_size = bytes;
327 td->io_ops->close_file(td, f);
328 return 0;
329err:
330 td->io_ops->close_file(td, f);
331 return 1;
332#else
333 f->real_file_size = -1ULL;
334 return 0;
335#endif
336}
337
53cdc686
JA
338static int get_file_size(struct thread_data *td, struct fio_file *f)
339{
340 int ret = 0;
341
d6aed795 342 if (fio_file_size_known(f))
409b3417
JA
343 return 0;
344
7bb48f84
JA
345 if (f->filetype == FIO_TYPE_FILE)
346 ret = file_size(td, f);
347 else if (f->filetype == FIO_TYPE_BD)
53cdc686 348 ret = bdev_size(td, f);
4ccdccd1
JA
349 else if (f->filetype == FIO_TYPE_CHAR)
350 ret = char_size(td, f);
53cdc686
JA
351 else
352 f->real_file_size = -1;
353
354 if (ret)
355 return ret;
356
357 if (f->file_offset > f->real_file_size) {
0f2152c1 358 log_err("%s: offset extends end (%llu > %llu)\n", td->o.name,
4e0a8fa2
JA
359 (unsigned long long) f->file_offset,
360 (unsigned long long) f->real_file_size);
53cdc686
JA
361 return 1;
362 }
363
d6aed795 364 fio_file_set_size_known(f);
53cdc686
JA
365 return 0;
366}
367
3baddf24
JA
368static int __file_invalidate_cache(struct thread_data *td, struct fio_file *f,
369 unsigned long long off,
370 unsigned long long len)
e5b401d4
JA
371{
372 int ret = 0;
373
5e0074c2 374 if (len == -1ULL)
3baddf24
JA
375 len = f->io_size;
376 if (off == -1ULL)
377 off = f->file_offset;
ee56ad50 378
0d1cd207
JA
379 if (len == -1ULL || off == -1ULL)
380 return 0;
381
3baddf24
JA
382 dprint(FD_IO, "invalidate cache %s: %llu/%llu\n", f->file_name, off,
383 len);
b5af8293 384
e5b401d4
JA
385 /*
386 * FIXME: add blockdev flushing too
387 */
a1c58075 388 if (f->mmap_ptr) {
03e20d68 389 ret = posix_madvise(f->mmap_ptr, f->mmap_sz, POSIX_MADV_DONTNEED);
a1c58075 390#ifdef FIO_MADV_FREE
03e20d68 391 (void) posix_madvise(f->mmap_ptr, f->mmap_sz, FIO_MADV_FREE);
a1c58075
JA
392#endif
393 } else if (f->filetype == FIO_TYPE_FILE) {
ecc314ba 394 ret = posix_fadvise(f->fd, off, len, POSIX_FADV_DONTNEED);
5ec10eaa 395 } else if (f->filetype == FIO_TYPE_BD) {
ecc314ba 396 ret = blockdev_invalidate_cache(f);
7e0e25c9 397 if (ret < 0 && errno == EACCES && geteuid()) {
7172cfe8 398 if (!root_warn) {
5ec10eaa
JA
399 log_err("fio: only root may flush block "
400 "devices. Cache flush bypassed!\n");
7172cfe8
JA
401 root_warn = 1;
402 }
7e0e25c9
JA
403 ret = 0;
404 }
b5605e9d 405 } else if (f->filetype == FIO_TYPE_CHAR || f->filetype == FIO_TYPE_PIPE)
e5b401d4
JA
406 ret = 0;
407
408 if (ret < 0) {
e1161c32 409 td_verror(td, errno, "invalidate_cache");
e5b401d4 410 return 1;
3baddf24
JA
411 } else if (ret > 0) {
412 td_verror(td, ret, "invalidate_cache");
413 return 1;
e5b401d4
JA
414 }
415
ad2da605 416 return ret;
3baddf24
JA
417
418}
419
420int file_invalidate_cache(struct thread_data *td, struct fio_file *f)
421{
d6aed795 422 if (!fio_file_open(f))
a5fb461f
JA
423 return 0;
424
5e0074c2 425 return __file_invalidate_cache(td, f, -1ULL, -1ULL);
e5b401d4
JA
426}
427
6977bcd0 428int generic_close_file(struct thread_data fio_unused *td, struct fio_file *f)
53cdc686 429{
6977bcd0
JA
430 int ret = 0;
431
ee56ad50 432 dprint(FD_FILE, "fd close %s\n", f->file_name);
4906e0b5
JA
433
434 remove_file_hash(f);
435
6977bcd0
JA
436 if (close(f->fd) < 0)
437 ret = errno;
438
b5af8293 439 f->fd = -1;
e6c4d732
JA
440
441 if (f->shadow_fd != -1) {
442 close(f->shadow_fd);
443 f->shadow_fd = -1;
444 }
445
6977bcd0 446 return ret;
53cdc686
JA
447}
448
1ccc6dc7 449int file_lookup_open(struct fio_file *f, int flags)
53cdc686 450{
29c1349f 451 struct fio_file *__f;
4d4e80f2
JA
452 int from_hash;
453
454 __f = lookup_file_hash(f->file_name);
455 if (__f) {
9efef3c4 456 dprint(FD_FILE, "found file in hash %s\n", f->file_name);
4d4e80f2
JA
457 /*
458 * racy, need the __f->lock locked
459 */
460 f->lock = __f->lock;
4d4e80f2
JA
461 from_hash = 1;
462 } else {
9efef3c4 463 dprint(FD_FILE, "file not found in hash %s\n", f->file_name);
4d4e80f2
JA
464 from_hash = 0;
465 }
466
e8670ef8 467 f->fd = open(f->file_name, flags, 0600);
4d4e80f2
JA
468 return from_hash;
469}
470
e6c4d732
JA
471static int file_close_shadow_fds(struct thread_data *td)
472{
473 struct fio_file *f;
474 int num_closed = 0;
475 unsigned int i;
476
477 for_each_file(td, f, i) {
478 if (f->shadow_fd == -1)
479 continue;
480
481 close(f->shadow_fd);
482 f->shadow_fd = -1;
483 num_closed++;
484 }
485
486 return num_closed;
487}
488
4d4e80f2
JA
489int generic_open_file(struct thread_data *td, struct fio_file *f)
490{
66159828 491 int is_std = 0;
53cdc686 492 int flags = 0;
29c1349f 493 int from_hash = 0;
53cdc686 494
ee56ad50
JA
495 dprint(FD_FILE, "fd open %s\n", f->file_name);
496
6eaf09d6
SL
497 if (td_trim(td) && f->filetype != FIO_TYPE_BD) {
498 log_err("fio: trim only applies to block device\n");
499 return 1;
500 }
501
66159828
JA
502 if (!strcmp(f->file_name, "-")) {
503 if (td_rw(td)) {
504 log_err("fio: can't read/write to stdin/out\n");
505 return 1;
506 }
507 is_std = 1;
ce98fa66
JA
508
509 /*
510 * move output logging to stderr, if we are writing to stdout
511 */
512 if (td_write(td))
513 f_out = stderr;
66159828
JA
514 }
515
6eaf09d6
SL
516 if (td_trim(td))
517 goto skip_flags;
2dc1bbeb 518 if (td->o.odirect)
2fd233b7 519 flags |= OS_O_DIRECT;
2dc1bbeb 520 if (td->o.sync_io)
2fd233b7 521 flags |= O_SYNC;
814452bd
JA
522 if (td->o.create_on_open)
523 flags |= O_CREAT;
6eaf09d6
SL
524skip_flags:
525 if (f->filetype != FIO_TYPE_FILE)
526 flags |= FIO_O_NOATIME;
53cdc686 527
056f3459 528open_again:
660a1cb5 529 if (td_write(td)) {
17308158
JA
530 if (!read_only)
531 flags |= O_RDWR;
53cdc686 532
af52b345 533 if (f->filetype == FIO_TYPE_FILE)
2fd233b7 534 flags |= O_CREAT;
2fd233b7 535
66159828
JA
536 if (is_std)
537 f->fd = dup(STDOUT_FILENO);
4d4e80f2
JA
538 else
539 from_hash = file_lookup_open(f, flags);
6eaf09d6 540 } else if (td_read(td)) {
4241ea8f 541 if (f->filetype == FIO_TYPE_CHAR && !read_only)
2fd233b7
JA
542 flags |= O_RDWR;
543 else
544 flags |= O_RDONLY;
545
66159828
JA
546 if (is_std)
547 f->fd = dup(STDIN_FILENO);
4d4e80f2
JA
548 else
549 from_hash = file_lookup_open(f, flags);
6eaf09d6
SL
550 } else { //td trim
551 flags |= O_RDWR;
552 from_hash = file_lookup_open(f, flags);
53cdc686
JA
553 }
554
555 if (f->fd == -1) {
e4e33258 556 char buf[FIO_VERROR_SIZE];
e1161c32
JA
557 int __e = errno;
558
835d9b9e 559 if (__e == EPERM && (flags & FIO_O_NOATIME)) {
5921e80c 560 flags &= ~FIO_O_NOATIME;
056f3459
AC
561 goto open_again;
562 }
e6c4d732
JA
563 if (__e == EMFILE && file_close_shadow_fds(td))
564 goto open_again;
056f3459 565
98ffb8f3 566 snprintf(buf, sizeof(buf), "open(%s)", f->file_name);
e4e33258 567
a93c5f04
JA
568 if (__e == EINVAL && (flags & OS_O_DIRECT)) {
569 log_err("fio: looks like your file system does not " \
570 "support direct=1/buffered=0\n");
571 }
572
e4e33258 573 td_verror(td, __e, buf);
53cdc686
JA
574 }
575
29c1349f
JA
576 if (!from_hash && f->fd != -1) {
577 if (add_file_hash(f)) {
3f0ca9b9 578 int fio_unused ret;
29c1349f
JA
579
580 /*
e6c4d732
JA
581 * Stash away descriptor for later close. This is to
582 * work-around a "feature" on Linux, where a close of
583 * an fd that has been opened for write will trigger
584 * udev to call blkid to check partitions, fs id, etc.
585 * That polutes the device cache, which can slow down
586 * unbuffered accesses.
29c1349f 587 */
e6c4d732
JA
588 if (f->shadow_fd == -1)
589 f->shadow_fd = f->fd;
590 else {
591 /*
592 * OK to ignore, we haven't done anything
593 * with it
594 */
595 ret = generic_close_file(td, f);
596 }
29c1349f
JA
597 goto open_again;
598 }
599 }
4906e0b5 600
53cdc686 601 return 0;
b5af8293
JA
602}
603
df9c26b1 604int generic_get_file_size(struct thread_data *td, struct fio_file *f)
21972cde 605{
df9c26b1 606 return get_file_size(td, f);
21972cde
JA
607}
608
7bb48f84
JA
609/*
610 * open/close all files, so that ->real_file_size gets set
611 */
bab3fd58 612static int get_file_sizes(struct thread_data *td)
7bb48f84
JA
613{
614 struct fio_file *f;
615 unsigned int i;
bab3fd58 616 int err = 0;
7bb48f84
JA
617
618 for_each_file(td, f, i) {
5ec10eaa
JA
619 dprint(FD_FILE, "get file size for %p/%d/%p\n", f, i,
620 f->file_name);
9efef3c4 621
99a47c69 622 if (td_io_get_file_size(td, f)) {
40b44f4a
JA
623 if (td->error != ENOENT) {
624 log_err("%s\n", td->verror);
625 err = 1;
626 }
541d66d7 627 clear_error(td);
07eb79df 628 }
409b3417
JA
629
630 if (f->real_file_size == -1ULL && td->o.size)
631 f->real_file_size = td->o.size / td->o.nr_files;
7bb48f84 632 }
bab3fd58
JA
633
634 return err;
7bb48f84
JA
635}
636
2e3bd4c2
JA
637struct fio_mount {
638 struct flist_head list;
639 const char *base;
640 char __base[256];
641 unsigned int key;
642};
643
644/*
645 * Get free number of bytes for each file on each unique mount.
646 */
647static unsigned long long get_fs_free_counts(struct thread_data *td)
648{
649 struct flist_head *n, *tmp;
68b0316f 650 unsigned long long ret = 0;
2e3bd4c2
JA
651 struct fio_mount *fm;
652 FLIST_HEAD(list);
653 struct fio_file *f;
654 unsigned int i;
655
656 for_each_file(td, f, i) {
657 struct stat sb;
658 char buf[256];
659
4ccdccd1
JA
660 if (f->filetype == FIO_TYPE_BD || f->filetype == FIO_TYPE_CHAR) {
661 if (f->real_file_size != -1ULL)
662 ret += f->real_file_size;
68b0316f
JA
663 continue;
664 } else if (f->filetype != FIO_TYPE_FILE)
665 continue;
666
2e3bd4c2
JA
667 strcpy(buf, f->file_name);
668
669 if (stat(buf, &sb) < 0) {
670 if (errno != ENOENT)
671 break;
672 strcpy(buf, ".");
673 if (stat(buf, &sb) < 0)
674 break;
675 }
676
677 fm = NULL;
678 flist_for_each(n, &list) {
679 fm = flist_entry(n, struct fio_mount, list);
680 if (fm->key == sb.st_dev)
681 break;
682
683 fm = NULL;
684 }
685
686 if (fm)
687 continue;
688
689 fm = malloc(sizeof(*fm));
690 strcpy(fm->__base, buf);
691 fm->base = basename(fm->__base);
692 fm->key = sb.st_dev;
693 flist_add(&fm->list, &list);
694 }
695
2e3bd4c2
JA
696 flist_for_each_safe(n, tmp, &list) {
697 unsigned long long sz;
698
699 fm = flist_entry(n, struct fio_mount, list);
700 flist_del(&fm->list);
701
702 sz = get_fs_size(fm->base);
703 if (sz && sz != -1ULL)
704 ret += sz;
705
706 free(fm);
707 }
708
709 return ret;
710}
711
293b8c1f 712uint64_t get_start_offset(struct thread_data *td)
ce95d651
DE
713{
714 return td->o.start_offset +
715 (td->thread_number - 1) * td->o.offset_increment;
716}
717
7bb48f84
JA
718/*
719 * Open the files and setup files sizes, creating files if necessary.
720 */
53cdc686
JA
721int setup_files(struct thread_data *td)
722{
7bb48f84 723 unsigned long long total_size, extend_size;
de98bd30 724 struct thread_options *o = &td->o;
53cdc686 725 struct fio_file *f;
af52b345 726 unsigned int i;
000b0803 727 int err = 0, need_extend;
e90391eb 728 int old_state;
53cdc686 729
ee56ad50
JA
730 dprint(FD_FILE, "setup files\n");
731
e90391eb
JA
732 old_state = td->runstate;
733 td_set_runstate(td, TD_SETTING_UP);
734
de98bd30 735 if (o->read_iolog_file)
25460cf6 736 goto done;
691c8fb0 737
53cdc686
JA
738 /*
739 * if ioengine defines a setup() method, it's responsible for
7bb48f84
JA
740 * opening the files and setting f->real_file_size to indicate
741 * the valid range for that file.
53cdc686
JA
742 */
743 if (td->io_ops->setup)
7bb48f84
JA
744 err = td->io_ops->setup(td);
745 else
bab3fd58 746 err = get_file_sizes(td);
53cdc686 747
f1027063 748 if (err)
e90391eb 749 goto err_out;
f1027063 750
0a7eb121 751 /*
7bb48f84
JA
752 * check sizes. if the files/devices do not exist and the size
753 * isn't passed to fio, abort.
0a7eb121 754 */
7bb48f84
JA
755 total_size = 0;
756 for_each_file(td, f, i) {
757 if (f->real_file_size == -1ULL)
758 total_size = -1ULL;
759 else
760 total_size += f->real_file_size;
761 }
0a7eb121 762
de98bd30 763 if (o->fill_device)
2e3bd4c2
JA
764 td->fill_device_size = get_fs_free_counts(td);
765
7bb48f84
JA
766 /*
767 * device/file sizes are zero and no size given, punt
768 */
de98bd30
JA
769 if ((!total_size || total_size == -1ULL) && !o->size &&
770 !(td->io_ops->flags & FIO_NOIO) && !o->fill_device &&
771 !(o->nr_files && (o->file_size_low || o->file_size_high))) {
772 log_err("%s: you need to specify size=\n", o->name);
e1161c32 773 td_verror(td, EINVAL, "total_file_size");
e90391eb 774 goto err_out;
53cdc686
JA
775 }
776
7bb48f84
JA
777 /*
778 * now file sizes are known, so we can set ->io_size. if size= is
779 * not given, ->io_size is just equal to ->real_file_size. if size
780 * is given, ->io_size is size / nr_files.
781 */
782 extend_size = total_size = 0;
783 need_extend = 0;
784 for_each_file(td, f, i) {
ce95d651 785 f->file_offset = get_start_offset(td);
bcdedd0a 786
de98bd30 787 if (!o->file_size_low) {
7bb48f84
JA
788 /*
789 * no file size range given, file size is equal to
790 * total size divided by number of files. if that is
791 * zero, set it to the real file size.
792 */
de98bd30 793 f->io_size = o->size / o->nr_files;
65bdb10a 794 if (!f->io_size)
273f8c91 795 f->io_size = f->real_file_size - f->file_offset;
de98bd30
JA
796 } else if (f->real_file_size < o->file_size_low ||
797 f->real_file_size > o->file_size_high) {
798 if (f->file_offset > o->file_size_low)
bcdedd0a 799 goto err_offset;
7bb48f84
JA
800 /*
801 * file size given. if it's fixed, use that. if it's a
802 * range, generate a random size in-between.
803 */
de98bd30
JA
804 if (o->file_size_low == o->file_size_high)
805 f->io_size = o->file_size_low - f->file_offset;
806 else {
5ec10eaa
JA
807 f->io_size = get_rand_file_size(td)
808 - f->file_offset;
809 }
65bdb10a 810 } else
bcdedd0a 811 f->io_size = f->real_file_size - f->file_offset;
53cdc686 812
7bb48f84
JA
813 if (f->io_size == -1ULL)
814 total_size = -1ULL;
4d002569 815 else {
de98bd30
JA
816 if (o->size_percent)
817 f->io_size = (f->io_size * o->size_percent) / 100;
7bb48f84 818 total_size += f->io_size;
4d002569 819 }
7bb48f84
JA
820
821 if (f->filetype == FIO_TYPE_FILE &&
bcdedd0a 822 (f->io_size + f->file_offset) > f->real_file_size &&
7bb48f84 823 !(td->io_ops->flags & FIO_DISKLESSIO)) {
de98bd30 824 if (!o->create_on_open) {
814452bd
JA
825 need_extend++;
826 extend_size += (f->io_size + f->file_offset);
827 } else
828 f->real_file_size = f->io_size + f->file_offset;
d6aed795 829 fio_file_set_extend(f);
5ec10eaa 830 }
7bb48f84 831 }
53cdc686 832
de98bd30
JA
833 if (!o->size || o->size > total_size)
834 o->size = total_size;
21972cde 835
7bb48f84
JA
836 /*
837 * See if we need to extend some files
838 */
839 if (need_extend) {
840 temp_stall_ts = 1;
f3afa57e 841 if (output_format == FIO_OUTPUT_NORMAL)
a7ba8c5f 842 log_info("%s: Laying out IO file(s) (%u file(s) /"
de98bd30 843 " %lluMB)\n", o->name, need_extend,
a7ba8c5f 844 extend_size >> 20);
7bb48f84
JA
845
846 for_each_file(td, f, i) {
5e0074c2 847 unsigned long long old_len = -1ULL, extend_len = -1ULL;
3baddf24 848
d6aed795 849 if (!fio_file_extend(f))
7bb48f84
JA
850 continue;
851
409b3417 852 assert(f->filetype == FIO_TYPE_FILE);
d6aed795 853 fio_file_clear_extend(f);
de98bd30 854 if (!o->fill_device) {
5e0074c2 855 old_len = f->real_file_size;
0b9d69ec
JA
856 extend_len = f->io_size + f->file_offset -
857 old_len;
5e0074c2 858 }
bcdedd0a 859 f->real_file_size = (f->io_size + f->file_offset);
7bb48f84
JA
860 err = extend_file(td, f);
861 if (err)
3baddf24 862 break;
5e0074c2 863
3baddf24
JA
864 err = __file_invalidate_cache(td, f, old_len,
865 extend_len);
866 close(f->fd);
867 f->fd = -1;
868 if (err)
7bb48f84
JA
869 break;
870 }
871 temp_stall_ts = 0;
872 }
873
874 if (err)
e90391eb 875 goto err_out;
7bb48f84 876
de98bd30
JA
877 if (!o->zone_size)
878 o->zone_size = o->size;
7bb48f84 879
ea966f81
JA
880 /*
881 * iolog already set the total io size, if we read back
882 * stored entries.
883 */
de98bd30
JA
884 if (!o->read_iolog_file)
885 td->total_io_size = o->size * o->loops;
25460cf6
JA
886
887done:
de98bd30 888 if (o->create_only)
25460cf6
JA
889 td->done = 1;
890
e90391eb 891 td_set_runstate(td, old_state);
7bb48f84 892 return 0;
bcdedd0a 893err_offset:
de98bd30 894 log_err("%s: you need to specify valid offset=\n", o->name);
e90391eb
JA
895err_out:
896 td_set_runstate(td, old_state);
bcdedd0a 897 return 1;
53cdc686
JA
898}
899
afad68f7
ZY
900int pre_read_files(struct thread_data *td)
901{
902 struct fio_file *f;
903 unsigned int i;
904
905 dprint(FD_FILE, "pre_read files\n");
906
907 for_each_file(td, f, i) {
908 pre_read_file(td, f);
909 }
910
911 return 1;
912}
913
9c6f6316
JA
914static int __init_rand_distribution(struct thread_data *td, struct fio_file *f)
915{
2316296a 916 unsigned int range_size, seed;
9c6f6316 917 unsigned long nranges;
21415db9 918 uint64_t file_size;
9c6f6316
JA
919
920 range_size = min(td->o.min_bs[DDIR_READ], td->o.min_bs[DDIR_WRITE]);
21415db9 921 file_size = min(f->real_file_size, f->io_size);
9c6f6316 922
21415db9 923 nranges = (file_size + range_size - 1) / range_size;
9c6f6316 924
2316296a 925 seed = jhash(f->file_name, strlen(f->file_name), 0) * td->thread_number;
8425687e
JA
926 if (!td->o.rand_repeatable)
927 seed = td->rand_seeds[4];
928
9c6f6316 929 if (td->o.random_distribution == FIO_RAND_DIST_ZIPF)
888677a4 930 zipf_init(&f->zipf, nranges, td->o.zipf_theta.u.f, seed);
9c6f6316 931 else
888677a4 932 pareto_init(&f->zipf, nranges, td->o.pareto_h.u.f, seed);
9c6f6316
JA
933
934 return 1;
935}
936
937static int init_rand_distribution(struct thread_data *td)
938{
939 struct fio_file *f;
940 unsigned int i;
941 int state;
942
943 if (td->o.random_distribution == FIO_RAND_DIST_RANDOM)
944 return 0;
945
946 state = td->runstate;
947 td_set_runstate(td, TD_SETTING_UP);
948 for_each_file(td, f, i)
949 __init_rand_distribution(td, f);
950 td_set_runstate(td, state);
951
952 return 1;
953}
954
68727076
JA
955int init_random_map(struct thread_data *td)
956{
51ede0b1 957 unsigned long long blocks;
68727076
JA
958 struct fio_file *f;
959 unsigned int i;
960
9c6f6316
JA
961 if (init_rand_distribution(td))
962 return 0;
3831a843 963 if (!td_random(td))
68727076
JA
964 return 0;
965
966 for_each_file(td, f, i) {
38f30c81
JA
967 uint64_t file_size = min(f->real_file_size, f->io_size);
968
53737ae0
JA
969 blocks = file_size / (unsigned long long) td->o.rw_min_bs;
970
8055e41d 971 if (td->o.random_generator == FIO_RAND_GEN_LFSR) {
82af46be
JA
972 unsigned long seed;
973
974 seed = td->rand_seeds[FIO_RAND_BLOCK_OFF];
975
d474cbc9 976 if (!lfsr_init(&f->lfsr, blocks, seed, seed & 0xF))
8055e41d 977 continue;
3831a843 978 } else if (!td->o.norandommap) {
7ebd796f
JA
979 f->io_axmap = axmap_new(blocks);
980 if (f->io_axmap)
8055e41d 981 continue;
1cad7121
JA
982 } else if (td->o.norandommap)
983 continue;
ceadd59e 984
2b386d25 985 if (!td->o.softrandommap) {
5ec10eaa
JA
986 log_err("fio: failed allocating random map. If running"
987 " a large number of jobs, try the 'norandommap'"
2b386d25
JA
988 " option or set 'softrandommap'. Or give"
989 " a larger --alloc-size to fio.\n");
68727076
JA
990 return 1;
991 }
303032ae
JA
992
993 log_info("fio: file %s failed allocating random map. Running "
994 "job without.\n", f->file_name);
68727076
JA
995 }
996
997 return 0;
998}
999
53cdc686
JA
1000void close_files(struct thread_data *td)
1001{
0ab8db89 1002 struct fio_file *f;
af52b345 1003 unsigned int i;
53cdc686 1004
2be3eec3
JA
1005 for_each_file(td, f, i) {
1006 if (fio_file_open(f))
1007 td_io_close_file(td, f);
1008 }
24ffd2c2
JA
1009}
1010
1011void close_and_free_files(struct thread_data *td)
1012{
1013 struct fio_file *f;
1014 unsigned int i;
1015
ee56ad50
JA
1016 dprint(FD_FILE, "close files\n");
1017
0ab8db89 1018 for_each_file(td, f, i) {
ffdfabd4
JA
1019 if (td->o.unlink && f->filetype == FIO_TYPE_FILE) {
1020 dprint(FD_FILE, "free unlink %s\n", f->file_name);
132ad46d 1021 unlink(f->file_name);
ffdfabd4 1022 }
bdb4e2e9 1023
22a57ba8
JA
1024 if (fio_file_open(f))
1025 td_io_close_file(td, f);
1026
b9fbcf21 1027 remove_file_hash(f);
b3dc7f07 1028
f17c4392 1029 sfree(f->file_name);
fa1da865 1030 f->file_name = NULL;
7ebd796f
JA
1031 axmap_free(f->io_axmap);
1032 f->io_axmap = NULL;
78d99e6a 1033 sfree(f);
53cdc686 1034 }
b4a6a59a 1035
2dc1bbeb 1036 td->o.filename = NULL;
cade3ef4 1037 free(td->files);
d7df1d13 1038 free(td->file_locks);
9efef3c4 1039 td->files_index = 0;
b4a6a59a 1040 td->files = NULL;
d7df1d13 1041 td->file_locks = NULL;
2dc1bbeb 1042 td->o.nr_files = 0;
53cdc686 1043}
af52b345 1044
e3bab463 1045static void get_file_type(struct fio_file *f)
af52b345
JA
1046{
1047 struct stat sb;
1048
66159828
JA
1049 if (!strcmp(f->file_name, "-"))
1050 f->filetype = FIO_TYPE_PIPE;
1051 else
1052 f->filetype = FIO_TYPE_FILE;
af52b345 1053
3892182a
BC
1054 /* \\.\ is the device namespace in Windows, where every file is
1055 * a block device */
1056 if (strncmp(f->file_name, "\\\\.\\", 4) == 0)
1057 f->filetype = FIO_TYPE_BD;
1058
b30d395e 1059 if (!stat(f->file_name, &sb)) {
3892182a 1060 if (S_ISBLK(sb.st_mode))
af52b345
JA
1061 f->filetype = FIO_TYPE_BD;
1062 else if (S_ISCHR(sb.st_mode))
1063 f->filetype = FIO_TYPE_CHAR;
b5605e9d
JA
1064 else if (S_ISFIFO(sb.st_mode))
1065 f->filetype = FIO_TYPE_PIPE;
af52b345
JA
1066 }
1067}
1068
f29b25a3 1069int add_file(struct thread_data *td, const char *fname)
af52b345 1070{
7b4e4fe5 1071 int cur_files = td->files_index;
bd0ee748 1072 char file_name[PATH_MAX];
af52b345 1073 struct fio_file *f;
bd0ee748 1074 int len = 0;
af52b345 1075
ee56ad50
JA
1076 dprint(FD_FILE, "add file %s\n", fname);
1077
f17c4392 1078 f = smalloc(sizeof(*f));
c48c0be7
JA
1079 if (!f) {
1080 log_err("fio: smalloc OOM\n");
1081 assert(0);
1082 }
0b9d69ec 1083
af52b345 1084 f->fd = -1;
e6c4d732 1085 f->shadow_fd = -1;
33c48814 1086 fio_file_reset(td, f);
bd0ee748 1087
fc99bc0d 1088 if (td->files_size <= td->files_index) {
1983e327 1089 unsigned int new_size = td->o.nr_files + 1;
126d65c6 1090
fc99bc0d
JA
1091 dprint(FD_FILE, "resize file array to %d files\n", new_size);
1092
1093 td->files = realloc(td->files, new_size * sizeof(f));
d537c08b
JM
1094 if (td->files == NULL) {
1095 log_err("fio: realloc OOM\n");
1096 assert(0);
1097 }
d7df1d13
JA
1098 if (td->o.file_lock_mode != FILE_LOCK_NONE) {
1099 td->file_locks = realloc(td->file_locks, new_size);
1100 if (!td->file_locks) {
1101 log_err("fio: realloc OOM\n");
1102 assert(0);
1103 }
1104 td->file_locks[cur_files] = FILE_LOCK_NONE;
1105 }
fc99bc0d
JA
1106 td->files_size = new_size;
1107 }
8bb7679e 1108 td->files[cur_files] = f;
89ac1d48 1109 f->fileno = cur_files;
126d65c6 1110
07eb79df
JA
1111 /*
1112 * init function, io engine may not be loaded yet
1113 */
1114 if (td->io_ops && (td->io_ops->flags & FIO_DISKLESSIO))
1115 f->real_file_size = -1ULL;
1116
bd0ee748
JA
1117 if (td->o.directory)
1118 len = sprintf(file_name, "%s/", td->o.directory);
1119
1120 sprintf(file_name + len, "%s", fname);
f17c4392 1121 f->file_name = smalloc_strdup(file_name);
c48c0be7
JA
1122 if (!f->file_name) {
1123 log_err("fio: smalloc OOM\n");
1124 assert(0);
1125 }
0b9d69ec 1126
e3bab463 1127 get_file_type(f);
af52b345 1128
4d4e80f2
JA
1129 switch (td->o.file_lock_mode) {
1130 case FILE_LOCK_NONE:
1131 break;
1132 case FILE_LOCK_READWRITE:
d7df1d13 1133 f->rwlock = fio_rwlock_init();
4d4e80f2
JA
1134 break;
1135 case FILE_LOCK_EXCLUSIVE:
521da527 1136 f->lock = fio_mutex_init(FIO_MUTEX_UNLOCKED);
4d4e80f2
JA
1137 break;
1138 default:
1139 log_err("fio: unknown lock mode: %d\n", td->o.file_lock_mode);
1140 assert(0);
1141 }
29c1349f 1142
7b4e4fe5 1143 td->files_index++;
1549441c
JA
1144 if (f->filetype == FIO_TYPE_FILE)
1145 td->nr_normal_files++;
f29b25a3 1146
5ec10eaa
JA
1147 dprint(FD_FILE, "file %p \"%s\" added at %d\n", f, f->file_name,
1148 cur_files);
9efef3c4 1149
f29b25a3 1150 return cur_files;
af52b345 1151}
0ad920e7 1152
49ffb4a2
JA
1153int add_file_exclusive(struct thread_data *td, const char *fname)
1154{
1155 struct fio_file *f;
1156 unsigned int i;
1157
1158 for_each_file(td, f, i) {
1159 if (!strcmp(f->file_name, fname))
1160 return i;
1161 }
1162
1163 return add_file(td, fname);
1164}
1165
0ad920e7
JA
1166void get_file(struct fio_file *f)
1167{
8172fe97 1168 dprint(FD_FILE, "get file %s, ref=%d\n", f->file_name, f->references);
d6aed795 1169 assert(fio_file_open(f));
0ad920e7
JA
1170 f->references++;
1171}
1172
6977bcd0 1173int put_file(struct thread_data *td, struct fio_file *f)
0ad920e7 1174{
98e1ac4e 1175 int f_ret = 0, ret = 0;
6977bcd0 1176
8172fe97 1177 dprint(FD_FILE, "put file %s, ref=%d\n", f->file_name, f->references);
ee56ad50 1178
22a57ba8
JA
1179 if (!fio_file_open(f)) {
1180 assert(f->fd == -1);
6977bcd0 1181 return 0;
22a57ba8 1182 }
0ad920e7
JA
1183
1184 assert(f->references);
1185 if (--f->references)
6977bcd0 1186 return 0;
0ad920e7 1187
d424d4dd 1188 if (should_fsync(td) && td->o.fsync_on_close)
98e1ac4e 1189 f_ret = fsync(f->fd);
ebb1415f 1190
0ad920e7 1191 if (td->io_ops->close_file)
6977bcd0 1192 ret = td->io_ops->close_file(td, f);
1020a139 1193
98e1ac4e 1194 if (!ret)
a5fb461f 1195 ret = f_ret;
98e1ac4e 1196
0ad920e7 1197 td->nr_open_files--;
d6aed795 1198 fio_file_clear_open(f);
22a57ba8 1199 assert(f->fd == -1);
6977bcd0 1200 return ret;
0ad920e7 1201}
bbf6b540 1202
4d4e80f2 1203void lock_file(struct thread_data *td, struct fio_file *f, enum fio_ddir ddir)
b2bd2bd9 1204{
4d4e80f2
JA
1205 if (!f->lock || td->o.file_lock_mode == FILE_LOCK_NONE)
1206 return;
29c1349f 1207
4d4e80f2
JA
1208 if (td->o.file_lock_mode == FILE_LOCK_READWRITE) {
1209 if (ddir == DDIR_READ)
d7df1d13 1210 fio_rwlock_read(f->rwlock);
4d4e80f2 1211 else
d7df1d13 1212 fio_rwlock_write(f->rwlock);
4d4e80f2
JA
1213 } else if (td->o.file_lock_mode == FILE_LOCK_EXCLUSIVE)
1214 fio_mutex_down(f->lock);
1215
d7df1d13 1216 td->file_locks[f->fileno] = td->o.file_lock_mode;
b2bd2bd9
JA
1217}
1218
4d4e80f2 1219void unlock_file(struct thread_data *td, struct fio_file *f)
b2bd2bd9 1220{
4d4e80f2
JA
1221 if (!f->lock || td->o.file_lock_mode == FILE_LOCK_NONE)
1222 return;
4d4e80f2 1223
d7df1d13
JA
1224 if (td->o.file_lock_mode == FILE_LOCK_READWRITE)
1225 fio_rwlock_unlock(f->rwlock);
1226 else if (td->o.file_lock_mode == FILE_LOCK_EXCLUSIVE)
4d4e80f2 1227 fio_mutex_up(f->lock);
d7df1d13
JA
1228
1229 td->file_locks[f->fileno] = FILE_LOCK_NONE;
b2bd2bd9
JA
1230}
1231
4d4e80f2
JA
1232void unlock_file_all(struct thread_data *td, struct fio_file *f)
1233{
d7df1d13
JA
1234 if (td->file_locks[f->fileno] != FILE_LOCK_NONE)
1235 unlock_file(td, f);
4d4e80f2
JA
1236}
1237
bbf6b540
JA
1238static int recurse_dir(struct thread_data *td, const char *dirname)
1239{
1240 struct dirent *dir;
1241 int ret = 0;
1242 DIR *D;
1243
1244 D = opendir(dirname);
1245 if (!D) {
0ddb270c
JA
1246 char buf[FIO_VERROR_SIZE];
1247
98ffb8f3 1248 snprintf(buf, FIO_VERROR_SIZE, "opendir(%s)", dirname);
0ddb270c 1249 td_verror(td, errno, buf);
bbf6b540
JA
1250 return 1;
1251 }
1252
1253 while ((dir = readdir(D)) != NULL) {
1254 char full_path[PATH_MAX];
1255 struct stat sb;
1256
e85b2b83
JA
1257 if (!strcmp(dir->d_name, ".") || !strcmp(dir->d_name, ".."))
1258 continue;
96d32d51 1259
b9fd788f 1260 sprintf(full_path, "%s%s%s", dirname, FIO_OS_PATH_SEPARATOR, dir->d_name);
bbf6b540
JA
1261
1262 if (lstat(full_path, &sb) == -1) {
1263 if (errno != ENOENT) {
1264 td_verror(td, errno, "stat");
1265 return 1;
1266 }
1267 }
1268
1269 if (S_ISREG(sb.st_mode)) {
1270 add_file(td, full_path);
2dc1bbeb 1271 td->o.nr_files++;
bbf6b540
JA
1272 continue;
1273 }
0ddb270c
JA
1274 if (!S_ISDIR(sb.st_mode))
1275 continue;
bbf6b540 1276
5ec10eaa
JA
1277 ret = recurse_dir(td, full_path);
1278 if (ret)
bbf6b540
JA
1279 break;
1280 }
1281
1282 closedir(D);
1283 return ret;
1284}
1285
1286int add_dir_files(struct thread_data *td, const char *path)
1287{
0ddb270c
JA
1288 int ret = recurse_dir(td, path);
1289
1290 if (!ret)
1291 log_info("fio: opendir added %d files\n", td->o.nr_files);
1292
1293 return ret;
bbf6b540 1294}
cade3ef4
JA
1295
1296void dup_files(struct thread_data *td, struct thread_data *org)
1297{
1298 struct fio_file *f;
1299 unsigned int i;
9efef3c4
JA
1300
1301 dprint(FD_FILE, "dup files: %d\n", org->files_index);
cade3ef4
JA
1302
1303 if (!org->files)
1304 return;
1305
9efef3c4 1306 td->files = malloc(org->files_index * sizeof(f));
cade3ef4 1307
d7df1d13
JA
1308 if (td->o.file_lock_mode != FILE_LOCK_NONE)
1309 td->file_locks = malloc(org->files_index);
1310
9efef3c4 1311 for_each_file(org, f, i) {
b0fe421a
JA
1312 struct fio_file *__f;
1313
f17c4392 1314 __f = smalloc(sizeof(*__f));
c48c0be7
JA
1315 if (!__f) {
1316 log_err("fio: smalloc OOM\n");
1317 assert(0);
1318 }
22a57ba8 1319 __f->fd = -1;
33c48814 1320 fio_file_reset(td, __f);
0b9d69ec 1321
bc3456fa 1322 if (f->file_name) {
f17c4392 1323 __f->file_name = smalloc_strdup(f->file_name);
c48c0be7
JA
1324 if (!__f->file_name) {
1325 log_err("fio: smalloc OOM\n");
1326 assert(0);
1327 }
0b9d69ec 1328
bc3456fa
AC
1329 __f->filetype = f->filetype;
1330 }
b0fe421a
JA
1331
1332 td->files[i] = __f;
cade3ef4
JA
1333 }
1334}
f29b25a3
JA
1335
1336/*
1337 * Returns the index that matches the filename, or -1 if not there
1338 */
1339int get_fileno(struct thread_data *td, const char *fname)
1340{
1341 struct fio_file *f;
1342 unsigned int i;
1343
1344 for_each_file(td, f, i)
1345 if (!strcmp(f->file_name, fname))
1346 return i;
1347
1348 return -1;
1349}
1350
1351/*
1352 * For log usage, where we add/open/close files automatically
1353 */
1354void free_release_files(struct thread_data *td)
1355{
1356 close_files(td);
1357 td->files_index = 0;
1358 td->nr_normal_files = 0;
1359}
33c48814
JA
1360
1361void fio_file_reset(struct thread_data *td, struct fio_file *f)
1362{
1363 f->last_pos = f->file_offset;
1364 f->last_start = -1ULL;
1365 if (f->io_axmap)
1366 axmap_reset(f->io_axmap);
1367 if (td->o.random_generator == FIO_RAND_GEN_LFSR)
1368 lfsr_reset(&f->lfsr, td->rand_seeds[FIO_RAND_BLOCK_OFF]);
1369}