verify: fix problem with hole punching on newer Linux kernels
[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
3e10fb83
JA
391 if (f->filetype == FIO_TYPE_BD)
392 (void) posix_madvise(f->mmap_ptr, f->mmap_sz, FIO_MADV_FREE);
a1c58075
JA
393#endif
394 } else if (f->filetype == FIO_TYPE_FILE) {
ecc314ba 395 ret = posix_fadvise(f->fd, off, len, POSIX_FADV_DONTNEED);
5ec10eaa 396 } else if (f->filetype == FIO_TYPE_BD) {
ecc314ba 397 ret = blockdev_invalidate_cache(f);
7e0e25c9 398 if (ret < 0 && errno == EACCES && geteuid()) {
7172cfe8 399 if (!root_warn) {
5ec10eaa
JA
400 log_err("fio: only root may flush block "
401 "devices. Cache flush bypassed!\n");
7172cfe8
JA
402 root_warn = 1;
403 }
7e0e25c9
JA
404 ret = 0;
405 }
b5605e9d 406 } else if (f->filetype == FIO_TYPE_CHAR || f->filetype == FIO_TYPE_PIPE)
e5b401d4
JA
407 ret = 0;
408
409 if (ret < 0) {
e1161c32 410 td_verror(td, errno, "invalidate_cache");
e5b401d4 411 return 1;
3baddf24
JA
412 } else if (ret > 0) {
413 td_verror(td, ret, "invalidate_cache");
414 return 1;
e5b401d4
JA
415 }
416
ad2da605 417 return ret;
3baddf24
JA
418
419}
420
421int file_invalidate_cache(struct thread_data *td, struct fio_file *f)
422{
d6aed795 423 if (!fio_file_open(f))
a5fb461f
JA
424 return 0;
425
5e0074c2 426 return __file_invalidate_cache(td, f, -1ULL, -1ULL);
e5b401d4
JA
427}
428
6977bcd0 429int generic_close_file(struct thread_data fio_unused *td, struct fio_file *f)
53cdc686 430{
6977bcd0
JA
431 int ret = 0;
432
ee56ad50 433 dprint(FD_FILE, "fd close %s\n", f->file_name);
4906e0b5
JA
434
435 remove_file_hash(f);
436
6977bcd0
JA
437 if (close(f->fd) < 0)
438 ret = errno;
439
b5af8293 440 f->fd = -1;
e6c4d732
JA
441
442 if (f->shadow_fd != -1) {
443 close(f->shadow_fd);
444 f->shadow_fd = -1;
445 }
446
6977bcd0 447 return ret;
53cdc686
JA
448}
449
1ccc6dc7 450int file_lookup_open(struct fio_file *f, int flags)
53cdc686 451{
29c1349f 452 struct fio_file *__f;
4d4e80f2
JA
453 int from_hash;
454
455 __f = lookup_file_hash(f->file_name);
456 if (__f) {
9efef3c4 457 dprint(FD_FILE, "found file in hash %s\n", f->file_name);
4d4e80f2
JA
458 /*
459 * racy, need the __f->lock locked
460 */
461 f->lock = __f->lock;
4d4e80f2
JA
462 from_hash = 1;
463 } else {
9efef3c4 464 dprint(FD_FILE, "file not found in hash %s\n", f->file_name);
4d4e80f2
JA
465 from_hash = 0;
466 }
467
e8670ef8 468 f->fd = open(f->file_name, flags, 0600);
4d4e80f2
JA
469 return from_hash;
470}
471
e6c4d732
JA
472static int file_close_shadow_fds(struct thread_data *td)
473{
474 struct fio_file *f;
475 int num_closed = 0;
476 unsigned int i;
477
478 for_each_file(td, f, i) {
479 if (f->shadow_fd == -1)
480 continue;
481
482 close(f->shadow_fd);
483 f->shadow_fd = -1;
484 num_closed++;
485 }
486
487 return num_closed;
488}
489
4d4e80f2
JA
490int generic_open_file(struct thread_data *td, struct fio_file *f)
491{
66159828 492 int is_std = 0;
53cdc686 493 int flags = 0;
29c1349f 494 int from_hash = 0;
53cdc686 495
ee56ad50
JA
496 dprint(FD_FILE, "fd open %s\n", f->file_name);
497
6eaf09d6
SL
498 if (td_trim(td) && f->filetype != FIO_TYPE_BD) {
499 log_err("fio: trim only applies to block device\n");
500 return 1;
501 }
502
66159828
JA
503 if (!strcmp(f->file_name, "-")) {
504 if (td_rw(td)) {
505 log_err("fio: can't read/write to stdin/out\n");
506 return 1;
507 }
508 is_std = 1;
ce98fa66
JA
509
510 /*
511 * move output logging to stderr, if we are writing to stdout
512 */
513 if (td_write(td))
514 f_out = stderr;
66159828
JA
515 }
516
6eaf09d6
SL
517 if (td_trim(td))
518 goto skip_flags;
2dc1bbeb 519 if (td->o.odirect)
2fd233b7 520 flags |= OS_O_DIRECT;
2dc1bbeb 521 if (td->o.sync_io)
2fd233b7 522 flags |= O_SYNC;
814452bd
JA
523 if (td->o.create_on_open)
524 flags |= O_CREAT;
6eaf09d6
SL
525skip_flags:
526 if (f->filetype != FIO_TYPE_FILE)
527 flags |= FIO_O_NOATIME;
53cdc686 528
056f3459 529open_again:
660a1cb5 530 if (td_write(td)) {
17308158
JA
531 if (!read_only)
532 flags |= O_RDWR;
53cdc686 533
af52b345 534 if (f->filetype == FIO_TYPE_FILE)
2fd233b7 535 flags |= O_CREAT;
2fd233b7 536
66159828
JA
537 if (is_std)
538 f->fd = dup(STDOUT_FILENO);
4d4e80f2
JA
539 else
540 from_hash = file_lookup_open(f, flags);
6eaf09d6 541 } else if (td_read(td)) {
4241ea8f 542 if (f->filetype == FIO_TYPE_CHAR && !read_only)
2fd233b7
JA
543 flags |= O_RDWR;
544 else
545 flags |= O_RDONLY;
546
66159828
JA
547 if (is_std)
548 f->fd = dup(STDIN_FILENO);
4d4e80f2
JA
549 else
550 from_hash = file_lookup_open(f, flags);
6eaf09d6
SL
551 } else { //td trim
552 flags |= O_RDWR;
553 from_hash = file_lookup_open(f, flags);
53cdc686
JA
554 }
555
556 if (f->fd == -1) {
e4e33258 557 char buf[FIO_VERROR_SIZE];
e1161c32
JA
558 int __e = errno;
559
835d9b9e 560 if (__e == EPERM && (flags & FIO_O_NOATIME)) {
5921e80c 561 flags &= ~FIO_O_NOATIME;
056f3459
AC
562 goto open_again;
563 }
e6c4d732
JA
564 if (__e == EMFILE && file_close_shadow_fds(td))
565 goto open_again;
056f3459 566
98ffb8f3 567 snprintf(buf, sizeof(buf), "open(%s)", f->file_name);
e4e33258 568
a93c5f04
JA
569 if (__e == EINVAL && (flags & OS_O_DIRECT)) {
570 log_err("fio: looks like your file system does not " \
571 "support direct=1/buffered=0\n");
572 }
573
e4e33258 574 td_verror(td, __e, buf);
53cdc686
JA
575 }
576
29c1349f
JA
577 if (!from_hash && f->fd != -1) {
578 if (add_file_hash(f)) {
3f0ca9b9 579 int fio_unused ret;
29c1349f
JA
580
581 /*
e6c4d732
JA
582 * Stash away descriptor for later close. This is to
583 * work-around a "feature" on Linux, where a close of
584 * an fd that has been opened for write will trigger
585 * udev to call blkid to check partitions, fs id, etc.
586 * That polutes the device cache, which can slow down
587 * unbuffered accesses.
29c1349f 588 */
e6c4d732
JA
589 if (f->shadow_fd == -1)
590 f->shadow_fd = f->fd;
591 else {
592 /*
593 * OK to ignore, we haven't done anything
594 * with it
595 */
596 ret = generic_close_file(td, f);
597 }
29c1349f
JA
598 goto open_again;
599 }
600 }
4906e0b5 601
53cdc686 602 return 0;
b5af8293
JA
603}
604
df9c26b1 605int generic_get_file_size(struct thread_data *td, struct fio_file *f)
21972cde 606{
df9c26b1 607 return get_file_size(td, f);
21972cde
JA
608}
609
7bb48f84
JA
610/*
611 * open/close all files, so that ->real_file_size gets set
612 */
bab3fd58 613static int get_file_sizes(struct thread_data *td)
7bb48f84
JA
614{
615 struct fio_file *f;
616 unsigned int i;
bab3fd58 617 int err = 0;
7bb48f84
JA
618
619 for_each_file(td, f, i) {
5ec10eaa
JA
620 dprint(FD_FILE, "get file size for %p/%d/%p\n", f, i,
621 f->file_name);
9efef3c4 622
99a47c69 623 if (td_io_get_file_size(td, f)) {
40b44f4a
JA
624 if (td->error != ENOENT) {
625 log_err("%s\n", td->verror);
626 err = 1;
627 }
541d66d7 628 clear_error(td);
07eb79df 629 }
409b3417
JA
630
631 if (f->real_file_size == -1ULL && td->o.size)
632 f->real_file_size = td->o.size / td->o.nr_files;
7bb48f84 633 }
bab3fd58
JA
634
635 return err;
7bb48f84
JA
636}
637
2e3bd4c2
JA
638struct fio_mount {
639 struct flist_head list;
640 const char *base;
641 char __base[256];
642 unsigned int key;
643};
644
645/*
646 * Get free number of bytes for each file on each unique mount.
647 */
648static unsigned long long get_fs_free_counts(struct thread_data *td)
649{
650 struct flist_head *n, *tmp;
68b0316f 651 unsigned long long ret = 0;
2e3bd4c2
JA
652 struct fio_mount *fm;
653 FLIST_HEAD(list);
654 struct fio_file *f;
655 unsigned int i;
656
657 for_each_file(td, f, i) {
658 struct stat sb;
659 char buf[256];
660
4ccdccd1
JA
661 if (f->filetype == FIO_TYPE_BD || f->filetype == FIO_TYPE_CHAR) {
662 if (f->real_file_size != -1ULL)
663 ret += f->real_file_size;
68b0316f
JA
664 continue;
665 } else if (f->filetype != FIO_TYPE_FILE)
666 continue;
667
2e3bd4c2
JA
668 strcpy(buf, f->file_name);
669
670 if (stat(buf, &sb) < 0) {
671 if (errno != ENOENT)
672 break;
673 strcpy(buf, ".");
674 if (stat(buf, &sb) < 0)
675 break;
676 }
677
678 fm = NULL;
679 flist_for_each(n, &list) {
680 fm = flist_entry(n, struct fio_mount, list);
681 if (fm->key == sb.st_dev)
682 break;
683
684 fm = NULL;
685 }
686
687 if (fm)
688 continue;
689
690 fm = malloc(sizeof(*fm));
691 strcpy(fm->__base, buf);
692 fm->base = basename(fm->__base);
693 fm->key = sb.st_dev;
694 flist_add(&fm->list, &list);
695 }
696
2e3bd4c2
JA
697 flist_for_each_safe(n, tmp, &list) {
698 unsigned long long sz;
699
700 fm = flist_entry(n, struct fio_mount, list);
701 flist_del(&fm->list);
702
703 sz = get_fs_size(fm->base);
704 if (sz && sz != -1ULL)
705 ret += sz;
706
707 free(fm);
708 }
709
710 return ret;
711}
712
293b8c1f 713uint64_t get_start_offset(struct thread_data *td)
ce95d651
DE
714{
715 return td->o.start_offset +
716 (td->thread_number - 1) * td->o.offset_increment;
717}
718
7bb48f84
JA
719/*
720 * Open the files and setup files sizes, creating files if necessary.
721 */
53cdc686
JA
722int setup_files(struct thread_data *td)
723{
7bb48f84 724 unsigned long long total_size, extend_size;
de98bd30 725 struct thread_options *o = &td->o;
53cdc686 726 struct fio_file *f;
af52b345 727 unsigned int i;
000b0803 728 int err = 0, need_extend;
e90391eb 729 int old_state;
53cdc686 730
ee56ad50
JA
731 dprint(FD_FILE, "setup files\n");
732
e90391eb
JA
733 old_state = td->runstate;
734 td_set_runstate(td, TD_SETTING_UP);
735
de98bd30 736 if (o->read_iolog_file)
25460cf6 737 goto done;
691c8fb0 738
53cdc686
JA
739 /*
740 * if ioengine defines a setup() method, it's responsible for
7bb48f84
JA
741 * opening the files and setting f->real_file_size to indicate
742 * the valid range for that file.
53cdc686
JA
743 */
744 if (td->io_ops->setup)
7bb48f84
JA
745 err = td->io_ops->setup(td);
746 else
bab3fd58 747 err = get_file_sizes(td);
53cdc686 748
f1027063 749 if (err)
e90391eb 750 goto err_out;
f1027063 751
0a7eb121 752 /*
7bb48f84
JA
753 * check sizes. if the files/devices do not exist and the size
754 * isn't passed to fio, abort.
0a7eb121 755 */
7bb48f84
JA
756 total_size = 0;
757 for_each_file(td, f, i) {
758 if (f->real_file_size == -1ULL)
759 total_size = -1ULL;
760 else
761 total_size += f->real_file_size;
762 }
0a7eb121 763
de98bd30 764 if (o->fill_device)
2e3bd4c2
JA
765 td->fill_device_size = get_fs_free_counts(td);
766
7bb48f84
JA
767 /*
768 * device/file sizes are zero and no size given, punt
769 */
de98bd30
JA
770 if ((!total_size || total_size == -1ULL) && !o->size &&
771 !(td->io_ops->flags & FIO_NOIO) && !o->fill_device &&
772 !(o->nr_files && (o->file_size_low || o->file_size_high))) {
773 log_err("%s: you need to specify size=\n", o->name);
e1161c32 774 td_verror(td, EINVAL, "total_file_size");
e90391eb 775 goto err_out;
53cdc686
JA
776 }
777
7bb48f84
JA
778 /*
779 * now file sizes are known, so we can set ->io_size. if size= is
780 * not given, ->io_size is just equal to ->real_file_size. if size
781 * is given, ->io_size is size / nr_files.
782 */
783 extend_size = total_size = 0;
784 need_extend = 0;
785 for_each_file(td, f, i) {
ce95d651 786 f->file_offset = get_start_offset(td);
bcdedd0a 787
de98bd30 788 if (!o->file_size_low) {
7bb48f84
JA
789 /*
790 * no file size range given, file size is equal to
791 * total size divided by number of files. if that is
792 * zero, set it to the real file size.
793 */
de98bd30 794 f->io_size = o->size / o->nr_files;
65bdb10a 795 if (!f->io_size)
273f8c91 796 f->io_size = f->real_file_size - f->file_offset;
de98bd30
JA
797 } else if (f->real_file_size < o->file_size_low ||
798 f->real_file_size > o->file_size_high) {
799 if (f->file_offset > o->file_size_low)
bcdedd0a 800 goto err_offset;
7bb48f84
JA
801 /*
802 * file size given. if it's fixed, use that. if it's a
803 * range, generate a random size in-between.
804 */
de98bd30
JA
805 if (o->file_size_low == o->file_size_high)
806 f->io_size = o->file_size_low - f->file_offset;
807 else {
5ec10eaa
JA
808 f->io_size = get_rand_file_size(td)
809 - f->file_offset;
810 }
65bdb10a 811 } else
bcdedd0a 812 f->io_size = f->real_file_size - f->file_offset;
53cdc686 813
7bb48f84
JA
814 if (f->io_size == -1ULL)
815 total_size = -1ULL;
4d002569 816 else {
de98bd30
JA
817 if (o->size_percent)
818 f->io_size = (f->io_size * o->size_percent) / 100;
7bb48f84 819 total_size += f->io_size;
4d002569 820 }
7bb48f84
JA
821
822 if (f->filetype == FIO_TYPE_FILE &&
bcdedd0a 823 (f->io_size + f->file_offset) > f->real_file_size &&
7bb48f84 824 !(td->io_ops->flags & FIO_DISKLESSIO)) {
de98bd30 825 if (!o->create_on_open) {
814452bd
JA
826 need_extend++;
827 extend_size += (f->io_size + f->file_offset);
828 } else
829 f->real_file_size = f->io_size + f->file_offset;
d6aed795 830 fio_file_set_extend(f);
5ec10eaa 831 }
7bb48f84 832 }
53cdc686 833
de98bd30
JA
834 if (!o->size || o->size > total_size)
835 o->size = total_size;
21972cde 836
7bb48f84
JA
837 /*
838 * See if we need to extend some files
839 */
840 if (need_extend) {
841 temp_stall_ts = 1;
f3afa57e 842 if (output_format == FIO_OUTPUT_NORMAL)
a7ba8c5f 843 log_info("%s: Laying out IO file(s) (%u file(s) /"
de98bd30 844 " %lluMB)\n", o->name, need_extend,
a7ba8c5f 845 extend_size >> 20);
7bb48f84
JA
846
847 for_each_file(td, f, i) {
5e0074c2 848 unsigned long long old_len = -1ULL, extend_len = -1ULL;
3baddf24 849
d6aed795 850 if (!fio_file_extend(f))
7bb48f84
JA
851 continue;
852
409b3417 853 assert(f->filetype == FIO_TYPE_FILE);
d6aed795 854 fio_file_clear_extend(f);
de98bd30 855 if (!o->fill_device) {
5e0074c2 856 old_len = f->real_file_size;
0b9d69ec
JA
857 extend_len = f->io_size + f->file_offset -
858 old_len;
5e0074c2 859 }
bcdedd0a 860 f->real_file_size = (f->io_size + f->file_offset);
7bb48f84
JA
861 err = extend_file(td, f);
862 if (err)
3baddf24 863 break;
5e0074c2 864
3baddf24
JA
865 err = __file_invalidate_cache(td, f, old_len,
866 extend_len);
867 close(f->fd);
868 f->fd = -1;
869 if (err)
7bb48f84
JA
870 break;
871 }
872 temp_stall_ts = 0;
873 }
874
875 if (err)
e90391eb 876 goto err_out;
7bb48f84 877
de98bd30
JA
878 if (!o->zone_size)
879 o->zone_size = o->size;
7bb48f84 880
ea966f81
JA
881 /*
882 * iolog already set the total io size, if we read back
883 * stored entries.
884 */
de98bd30
JA
885 if (!o->read_iolog_file)
886 td->total_io_size = o->size * o->loops;
25460cf6
JA
887
888done:
de98bd30 889 if (o->create_only)
25460cf6
JA
890 td->done = 1;
891
e90391eb 892 td_set_runstate(td, old_state);
7bb48f84 893 return 0;
bcdedd0a 894err_offset:
de98bd30 895 log_err("%s: you need to specify valid offset=\n", o->name);
e90391eb
JA
896err_out:
897 td_set_runstate(td, old_state);
bcdedd0a 898 return 1;
53cdc686
JA
899}
900
afad68f7
ZY
901int pre_read_files(struct thread_data *td)
902{
903 struct fio_file *f;
904 unsigned int i;
905
906 dprint(FD_FILE, "pre_read files\n");
907
908 for_each_file(td, f, i) {
909 pre_read_file(td, f);
910 }
911
912 return 1;
913}
914
9c6f6316
JA
915static int __init_rand_distribution(struct thread_data *td, struct fio_file *f)
916{
2316296a 917 unsigned int range_size, seed;
9c6f6316 918 unsigned long nranges;
21415db9 919 uint64_t file_size;
9c6f6316
JA
920
921 range_size = min(td->o.min_bs[DDIR_READ], td->o.min_bs[DDIR_WRITE]);
21415db9 922 file_size = min(f->real_file_size, f->io_size);
9c6f6316 923
21415db9 924 nranges = (file_size + range_size - 1) / range_size;
9c6f6316 925
2316296a 926 seed = jhash(f->file_name, strlen(f->file_name), 0) * td->thread_number;
8425687e
JA
927 if (!td->o.rand_repeatable)
928 seed = td->rand_seeds[4];
929
9c6f6316 930 if (td->o.random_distribution == FIO_RAND_DIST_ZIPF)
888677a4 931 zipf_init(&f->zipf, nranges, td->o.zipf_theta.u.f, seed);
9c6f6316 932 else
888677a4 933 pareto_init(&f->zipf, nranges, td->o.pareto_h.u.f, seed);
9c6f6316
JA
934
935 return 1;
936}
937
938static int init_rand_distribution(struct thread_data *td)
939{
940 struct fio_file *f;
941 unsigned int i;
942 int state;
943
944 if (td->o.random_distribution == FIO_RAND_DIST_RANDOM)
945 return 0;
946
947 state = td->runstate;
948 td_set_runstate(td, TD_SETTING_UP);
949 for_each_file(td, f, i)
950 __init_rand_distribution(td, f);
951 td_set_runstate(td, state);
952
953 return 1;
954}
955
68727076
JA
956int init_random_map(struct thread_data *td)
957{
51ede0b1 958 unsigned long long blocks;
68727076
JA
959 struct fio_file *f;
960 unsigned int i;
961
9c6f6316
JA
962 if (init_rand_distribution(td))
963 return 0;
3831a843 964 if (!td_random(td))
68727076
JA
965 return 0;
966
967 for_each_file(td, f, i) {
38f30c81
JA
968 uint64_t file_size = min(f->real_file_size, f->io_size);
969
53737ae0
JA
970 blocks = file_size / (unsigned long long) td->o.rw_min_bs;
971
8055e41d 972 if (td->o.random_generator == FIO_RAND_GEN_LFSR) {
82af46be
JA
973 unsigned long seed;
974
975 seed = td->rand_seeds[FIO_RAND_BLOCK_OFF];
976
d474cbc9 977 if (!lfsr_init(&f->lfsr, blocks, seed, seed & 0xF))
8055e41d 978 continue;
3831a843 979 } else if (!td->o.norandommap) {
7ebd796f
JA
980 f->io_axmap = axmap_new(blocks);
981 if (f->io_axmap)
8055e41d 982 continue;
1cad7121
JA
983 } else if (td->o.norandommap)
984 continue;
ceadd59e 985
2b386d25 986 if (!td->o.softrandommap) {
5ec10eaa
JA
987 log_err("fio: failed allocating random map. If running"
988 " a large number of jobs, try the 'norandommap'"
2b386d25
JA
989 " option or set 'softrandommap'. Or give"
990 " a larger --alloc-size to fio.\n");
68727076
JA
991 return 1;
992 }
303032ae
JA
993
994 log_info("fio: file %s failed allocating random map. Running "
995 "job without.\n", f->file_name);
68727076
JA
996 }
997
998 return 0;
999}
1000
53cdc686
JA
1001void close_files(struct thread_data *td)
1002{
0ab8db89 1003 struct fio_file *f;
af52b345 1004 unsigned int i;
53cdc686 1005
2be3eec3
JA
1006 for_each_file(td, f, i) {
1007 if (fio_file_open(f))
1008 td_io_close_file(td, f);
1009 }
24ffd2c2
JA
1010}
1011
1012void close_and_free_files(struct thread_data *td)
1013{
1014 struct fio_file *f;
1015 unsigned int i;
1016
ee56ad50
JA
1017 dprint(FD_FILE, "close files\n");
1018
0ab8db89 1019 for_each_file(td, f, i) {
ffdfabd4
JA
1020 if (td->o.unlink && f->filetype == FIO_TYPE_FILE) {
1021 dprint(FD_FILE, "free unlink %s\n", f->file_name);
132ad46d 1022 unlink(f->file_name);
ffdfabd4 1023 }
bdb4e2e9 1024
22a57ba8
JA
1025 if (fio_file_open(f))
1026 td_io_close_file(td, f);
1027
b9fbcf21 1028 remove_file_hash(f);
b3dc7f07 1029
f17c4392 1030 sfree(f->file_name);
fa1da865 1031 f->file_name = NULL;
7ebd796f
JA
1032 axmap_free(f->io_axmap);
1033 f->io_axmap = NULL;
78d99e6a 1034 sfree(f);
53cdc686 1035 }
b4a6a59a 1036
2dc1bbeb 1037 td->o.filename = NULL;
cade3ef4 1038 free(td->files);
d7df1d13 1039 free(td->file_locks);
9efef3c4 1040 td->files_index = 0;
b4a6a59a 1041 td->files = NULL;
d7df1d13 1042 td->file_locks = NULL;
2dc1bbeb 1043 td->o.nr_files = 0;
53cdc686 1044}
af52b345 1045
e3bab463 1046static void get_file_type(struct fio_file *f)
af52b345
JA
1047{
1048 struct stat sb;
1049
66159828
JA
1050 if (!strcmp(f->file_name, "-"))
1051 f->filetype = FIO_TYPE_PIPE;
1052 else
1053 f->filetype = FIO_TYPE_FILE;
af52b345 1054
3892182a
BC
1055 /* \\.\ is the device namespace in Windows, where every file is
1056 * a block device */
1057 if (strncmp(f->file_name, "\\\\.\\", 4) == 0)
1058 f->filetype = FIO_TYPE_BD;
1059
b30d395e 1060 if (!stat(f->file_name, &sb)) {
3892182a 1061 if (S_ISBLK(sb.st_mode))
af52b345
JA
1062 f->filetype = FIO_TYPE_BD;
1063 else if (S_ISCHR(sb.st_mode))
1064 f->filetype = FIO_TYPE_CHAR;
b5605e9d
JA
1065 else if (S_ISFIFO(sb.st_mode))
1066 f->filetype = FIO_TYPE_PIPE;
af52b345
JA
1067 }
1068}
1069
f29b25a3 1070int add_file(struct thread_data *td, const char *fname)
af52b345 1071{
7b4e4fe5 1072 int cur_files = td->files_index;
bd0ee748 1073 char file_name[PATH_MAX];
af52b345 1074 struct fio_file *f;
bd0ee748 1075 int len = 0;
af52b345 1076
ee56ad50
JA
1077 dprint(FD_FILE, "add file %s\n", fname);
1078
f17c4392 1079 f = smalloc(sizeof(*f));
c48c0be7
JA
1080 if (!f) {
1081 log_err("fio: smalloc OOM\n");
1082 assert(0);
1083 }
0b9d69ec 1084
af52b345 1085 f->fd = -1;
e6c4d732 1086 f->shadow_fd = -1;
33c48814 1087 fio_file_reset(td, f);
bd0ee748 1088
fc99bc0d 1089 if (td->files_size <= td->files_index) {
1983e327 1090 unsigned int new_size = td->o.nr_files + 1;
126d65c6 1091
fc99bc0d
JA
1092 dprint(FD_FILE, "resize file array to %d files\n", new_size);
1093
1094 td->files = realloc(td->files, new_size * sizeof(f));
d537c08b
JM
1095 if (td->files == NULL) {
1096 log_err("fio: realloc OOM\n");
1097 assert(0);
1098 }
d7df1d13
JA
1099 if (td->o.file_lock_mode != FILE_LOCK_NONE) {
1100 td->file_locks = realloc(td->file_locks, new_size);
1101 if (!td->file_locks) {
1102 log_err("fio: realloc OOM\n");
1103 assert(0);
1104 }
1105 td->file_locks[cur_files] = FILE_LOCK_NONE;
1106 }
fc99bc0d
JA
1107 td->files_size = new_size;
1108 }
8bb7679e 1109 td->files[cur_files] = f;
89ac1d48 1110 f->fileno = cur_files;
126d65c6 1111
07eb79df
JA
1112 /*
1113 * init function, io engine may not be loaded yet
1114 */
1115 if (td->io_ops && (td->io_ops->flags & FIO_DISKLESSIO))
1116 f->real_file_size = -1ULL;
1117
bd0ee748
JA
1118 if (td->o.directory)
1119 len = sprintf(file_name, "%s/", td->o.directory);
1120
1121 sprintf(file_name + len, "%s", fname);
f17c4392 1122 f->file_name = smalloc_strdup(file_name);
c48c0be7
JA
1123 if (!f->file_name) {
1124 log_err("fio: smalloc OOM\n");
1125 assert(0);
1126 }
0b9d69ec 1127
e3bab463 1128 get_file_type(f);
af52b345 1129
4d4e80f2
JA
1130 switch (td->o.file_lock_mode) {
1131 case FILE_LOCK_NONE:
1132 break;
1133 case FILE_LOCK_READWRITE:
d7df1d13 1134 f->rwlock = fio_rwlock_init();
4d4e80f2
JA
1135 break;
1136 case FILE_LOCK_EXCLUSIVE:
521da527 1137 f->lock = fio_mutex_init(FIO_MUTEX_UNLOCKED);
4d4e80f2
JA
1138 break;
1139 default:
1140 log_err("fio: unknown lock mode: %d\n", td->o.file_lock_mode);
1141 assert(0);
1142 }
29c1349f 1143
7b4e4fe5 1144 td->files_index++;
1549441c
JA
1145 if (f->filetype == FIO_TYPE_FILE)
1146 td->nr_normal_files++;
f29b25a3 1147
5ec10eaa
JA
1148 dprint(FD_FILE, "file %p \"%s\" added at %d\n", f, f->file_name,
1149 cur_files);
9efef3c4 1150
f29b25a3 1151 return cur_files;
af52b345 1152}
0ad920e7 1153
49ffb4a2
JA
1154int add_file_exclusive(struct thread_data *td, const char *fname)
1155{
1156 struct fio_file *f;
1157 unsigned int i;
1158
1159 for_each_file(td, f, i) {
1160 if (!strcmp(f->file_name, fname))
1161 return i;
1162 }
1163
1164 return add_file(td, fname);
1165}
1166
0ad920e7
JA
1167void get_file(struct fio_file *f)
1168{
8172fe97 1169 dprint(FD_FILE, "get file %s, ref=%d\n", f->file_name, f->references);
d6aed795 1170 assert(fio_file_open(f));
0ad920e7
JA
1171 f->references++;
1172}
1173
6977bcd0 1174int put_file(struct thread_data *td, struct fio_file *f)
0ad920e7 1175{
98e1ac4e 1176 int f_ret = 0, ret = 0;
6977bcd0 1177
8172fe97 1178 dprint(FD_FILE, "put file %s, ref=%d\n", f->file_name, f->references);
ee56ad50 1179
22a57ba8
JA
1180 if (!fio_file_open(f)) {
1181 assert(f->fd == -1);
6977bcd0 1182 return 0;
22a57ba8 1183 }
0ad920e7
JA
1184
1185 assert(f->references);
1186 if (--f->references)
6977bcd0 1187 return 0;
0ad920e7 1188
d424d4dd 1189 if (should_fsync(td) && td->o.fsync_on_close)
98e1ac4e 1190 f_ret = fsync(f->fd);
ebb1415f 1191
0ad920e7 1192 if (td->io_ops->close_file)
6977bcd0 1193 ret = td->io_ops->close_file(td, f);
1020a139 1194
98e1ac4e 1195 if (!ret)
a5fb461f 1196 ret = f_ret;
98e1ac4e 1197
0ad920e7 1198 td->nr_open_files--;
d6aed795 1199 fio_file_clear_open(f);
22a57ba8 1200 assert(f->fd == -1);
6977bcd0 1201 return ret;
0ad920e7 1202}
bbf6b540 1203
4d4e80f2 1204void lock_file(struct thread_data *td, struct fio_file *f, enum fio_ddir ddir)
b2bd2bd9 1205{
4d4e80f2
JA
1206 if (!f->lock || td->o.file_lock_mode == FILE_LOCK_NONE)
1207 return;
29c1349f 1208
4d4e80f2
JA
1209 if (td->o.file_lock_mode == FILE_LOCK_READWRITE) {
1210 if (ddir == DDIR_READ)
d7df1d13 1211 fio_rwlock_read(f->rwlock);
4d4e80f2 1212 else
d7df1d13 1213 fio_rwlock_write(f->rwlock);
4d4e80f2
JA
1214 } else if (td->o.file_lock_mode == FILE_LOCK_EXCLUSIVE)
1215 fio_mutex_down(f->lock);
1216
d7df1d13 1217 td->file_locks[f->fileno] = td->o.file_lock_mode;
b2bd2bd9
JA
1218}
1219
4d4e80f2 1220void unlock_file(struct thread_data *td, struct fio_file *f)
b2bd2bd9 1221{
4d4e80f2
JA
1222 if (!f->lock || td->o.file_lock_mode == FILE_LOCK_NONE)
1223 return;
4d4e80f2 1224
d7df1d13
JA
1225 if (td->o.file_lock_mode == FILE_LOCK_READWRITE)
1226 fio_rwlock_unlock(f->rwlock);
1227 else if (td->o.file_lock_mode == FILE_LOCK_EXCLUSIVE)
4d4e80f2 1228 fio_mutex_up(f->lock);
d7df1d13
JA
1229
1230 td->file_locks[f->fileno] = FILE_LOCK_NONE;
b2bd2bd9
JA
1231}
1232
4d4e80f2
JA
1233void unlock_file_all(struct thread_data *td, struct fio_file *f)
1234{
d7df1d13
JA
1235 if (td->file_locks[f->fileno] != FILE_LOCK_NONE)
1236 unlock_file(td, f);
4d4e80f2
JA
1237}
1238
bbf6b540
JA
1239static int recurse_dir(struct thread_data *td, const char *dirname)
1240{
1241 struct dirent *dir;
1242 int ret = 0;
1243 DIR *D;
1244
1245 D = opendir(dirname);
1246 if (!D) {
0ddb270c
JA
1247 char buf[FIO_VERROR_SIZE];
1248
98ffb8f3 1249 snprintf(buf, FIO_VERROR_SIZE, "opendir(%s)", dirname);
0ddb270c 1250 td_verror(td, errno, buf);
bbf6b540
JA
1251 return 1;
1252 }
1253
1254 while ((dir = readdir(D)) != NULL) {
1255 char full_path[PATH_MAX];
1256 struct stat sb;
1257
e85b2b83
JA
1258 if (!strcmp(dir->d_name, ".") || !strcmp(dir->d_name, ".."))
1259 continue;
96d32d51 1260
b9fd788f 1261 sprintf(full_path, "%s%s%s", dirname, FIO_OS_PATH_SEPARATOR, dir->d_name);
bbf6b540
JA
1262
1263 if (lstat(full_path, &sb) == -1) {
1264 if (errno != ENOENT) {
1265 td_verror(td, errno, "stat");
1266 return 1;
1267 }
1268 }
1269
1270 if (S_ISREG(sb.st_mode)) {
1271 add_file(td, full_path);
2dc1bbeb 1272 td->o.nr_files++;
bbf6b540
JA
1273 continue;
1274 }
0ddb270c
JA
1275 if (!S_ISDIR(sb.st_mode))
1276 continue;
bbf6b540 1277
5ec10eaa
JA
1278 ret = recurse_dir(td, full_path);
1279 if (ret)
bbf6b540
JA
1280 break;
1281 }
1282
1283 closedir(D);
1284 return ret;
1285}
1286
1287int add_dir_files(struct thread_data *td, const char *path)
1288{
0ddb270c
JA
1289 int ret = recurse_dir(td, path);
1290
1291 if (!ret)
1292 log_info("fio: opendir added %d files\n", td->o.nr_files);
1293
1294 return ret;
bbf6b540 1295}
cade3ef4
JA
1296
1297void dup_files(struct thread_data *td, struct thread_data *org)
1298{
1299 struct fio_file *f;
1300 unsigned int i;
9efef3c4
JA
1301
1302 dprint(FD_FILE, "dup files: %d\n", org->files_index);
cade3ef4
JA
1303
1304 if (!org->files)
1305 return;
1306
9efef3c4 1307 td->files = malloc(org->files_index * sizeof(f));
cade3ef4 1308
d7df1d13
JA
1309 if (td->o.file_lock_mode != FILE_LOCK_NONE)
1310 td->file_locks = malloc(org->files_index);
1311
9efef3c4 1312 for_each_file(org, f, i) {
b0fe421a
JA
1313 struct fio_file *__f;
1314
f17c4392 1315 __f = smalloc(sizeof(*__f));
c48c0be7
JA
1316 if (!__f) {
1317 log_err("fio: smalloc OOM\n");
1318 assert(0);
1319 }
22a57ba8 1320 __f->fd = -1;
33c48814 1321 fio_file_reset(td, __f);
0b9d69ec 1322
bc3456fa 1323 if (f->file_name) {
f17c4392 1324 __f->file_name = smalloc_strdup(f->file_name);
c48c0be7
JA
1325 if (!__f->file_name) {
1326 log_err("fio: smalloc OOM\n");
1327 assert(0);
1328 }
0b9d69ec 1329
bc3456fa
AC
1330 __f->filetype = f->filetype;
1331 }
b0fe421a
JA
1332
1333 td->files[i] = __f;
cade3ef4
JA
1334 }
1335}
f29b25a3
JA
1336
1337/*
1338 * Returns the index that matches the filename, or -1 if not there
1339 */
1340int get_fileno(struct thread_data *td, const char *fname)
1341{
1342 struct fio_file *f;
1343 unsigned int i;
1344
1345 for_each_file(td, f, i)
1346 if (!strcmp(f->file_name, fname))
1347 return i;
1348
1349 return -1;
1350}
1351
1352/*
1353 * For log usage, where we add/open/close files automatically
1354 */
1355void free_release_files(struct thread_data *td)
1356{
1357 close_files(td);
1358 td->files_index = 0;
1359 td->nr_normal_files = 0;
1360}
33c48814
JA
1361
1362void fio_file_reset(struct thread_data *td, struct fio_file *f)
1363{
1364 f->last_pos = f->file_offset;
1365 f->last_start = -1ULL;
1366 if (f->io_axmap)
1367 axmap_reset(f->io_axmap);
1368 if (td->o.random_generator == FIO_RAND_GEN_LFSR)
1369 lfsr_reset(&f->lfsr, td->rand_seeds[FIO_RAND_BLOCK_OFF]);
1370}