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Always set ->real_file_size to -1 when failed to get file size
[fio.git] / filesetup.c
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1#include <unistd.h>
2#include <fcntl.h>
3#include <string.h>
4#include <assert.h>
5#include <dirent.h>
6#include <libgen.h>
7#include <sys/stat.h>
8#include <sys/mman.h>
9#include <sys/types.h>
10
11#include "fio.h"
12#include "smalloc.h"
13#include "filehash.h"
14#include "options.h"
15#include "os/os.h"
16#include "hash.h"
17#include "lib/axmap.h"
18
19#ifdef CONFIG_LINUX_FALLOCATE
20#include <linux/falloc.h>
21#endif
22
23static int root_warn;
24
25static FLIST_HEAD(filename_list);
26
27static inline void clear_error(struct thread_data *td)
28{
29 td->error = 0;
30 td->verror[0] = '\0';
31}
32
33/*
34 * Leaves f->fd open on success, caller must close
35 */
36static int extend_file(struct thread_data *td, struct fio_file *f)
37{
38 int r, new_layout = 0, unlink_file = 0, flags;
39 unsigned long long left;
40 unsigned int bs;
41 char *b = NULL;
42
43 if (read_only) {
44 log_err("fio: refusing extend of file due to read-only\n");
45 return 0;
46 }
47
48 /*
49 * check if we need to lay the file out complete again. fio
50 * does that for operations involving reads, or for writes
51 * where overwrite is set
52 */
53 if (td_read(td) ||
54 (td_write(td) && td->o.overwrite && !td->o.file_append) ||
55 (td_write(td) && td_ioengine_flagged(td, FIO_NOEXTEND)))
56 new_layout = 1;
57 if (td_write(td) && !td->o.overwrite && !td->o.file_append)
58 unlink_file = 1;
59
60 if (unlink_file || new_layout) {
61 int ret;
62
63 dprint(FD_FILE, "layout unlink %s\n", f->file_name);
64
65 ret = td_io_unlink_file(td, f);
66 if (ret != 0 && ret != ENOENT) {
67 td_verror(td, errno, "unlink");
68 return 1;
69 }
70 }
71
72 flags = O_WRONLY;
73 if (td->o.allow_create)
74 flags |= O_CREAT;
75 if (new_layout)
76 flags |= O_TRUNC;
77
78#ifdef WIN32
79 flags |= _O_BINARY;
80#endif
81
82 dprint(FD_FILE, "open file %s, flags %x\n", f->file_name, flags);
83 f->fd = open(f->file_name, flags, 0644);
84 if (f->fd < 0) {
85 int err = errno;
86
87 if (err == ENOENT && !td->o.allow_create)
88 log_err("fio: file creation disallowed by "
89 "allow_file_create=0\n");
90 else
91 td_verror(td, err, "open");
92 return 1;
93 }
94
95#ifdef CONFIG_POSIX_FALLOCATE
96 if (!td->o.fill_device) {
97 switch (td->o.fallocate_mode) {
98 case FIO_FALLOCATE_NONE:
99 break;
100 case FIO_FALLOCATE_POSIX:
101 dprint(FD_FILE, "posix_fallocate file %s size %llu\n",
102 f->file_name,
103 (unsigned long long) f->real_file_size);
104
105 r = posix_fallocate(f->fd, 0, f->real_file_size);
106 if (r > 0) {
107 log_err("fio: posix_fallocate fails: %s\n",
108 strerror(r));
109 }
110 break;
111#ifdef CONFIG_LINUX_FALLOCATE
112 case FIO_FALLOCATE_KEEP_SIZE:
113 dprint(FD_FILE,
114 "fallocate(FALLOC_FL_KEEP_SIZE) "
115 "file %s size %llu\n", f->file_name,
116 (unsigned long long) f->real_file_size);
117
118 r = fallocate(f->fd, FALLOC_FL_KEEP_SIZE, 0,
119 f->real_file_size);
120 if (r != 0)
121 td_verror(td, errno, "fallocate");
122
123 break;
124#endif /* CONFIG_LINUX_FALLOCATE */
125 default:
126 log_err("fio: unknown fallocate mode: %d\n",
127 td->o.fallocate_mode);
128 assert(0);
129 }
130 }
131#endif /* CONFIG_POSIX_FALLOCATE */
132
133 if (!new_layout)
134 goto done;
135
136 /*
137 * The size will be -1ULL when fill_device is used, so don't truncate
138 * or fallocate this file, just write it
139 */
140 if (!td->o.fill_device) {
141 dprint(FD_FILE, "truncate file %s, size %llu\n", f->file_name,
142 (unsigned long long) f->real_file_size);
143 if (ftruncate(f->fd, f->real_file_size) == -1) {
144 if (errno != EFBIG) {
145 td_verror(td, errno, "ftruncate");
146 goto err;
147 }
148 }
149 }
150
151 b = malloc(td->o.max_bs[DDIR_WRITE]);
152
153 left = f->real_file_size;
154 while (left && !td->terminate) {
155 bs = td->o.max_bs[DDIR_WRITE];
156 if (bs > left)
157 bs = left;
158
159 fill_io_buffer(td, b, bs, bs);
160
161 r = write(f->fd, b, bs);
162
163 if (r > 0) {
164 left -= r;
165 continue;
166 } else {
167 if (r < 0) {
168 int __e = errno;
169
170 if (__e == ENOSPC) {
171 if (td->o.fill_device)
172 break;
173 log_info("fio: ENOSPC on laying out "
174 "file, stopping\n");
175 break;
176 }
177 td_verror(td, errno, "write");
178 } else
179 td_verror(td, EIO, "write");
180
181 break;
182 }
183 }
184
185 if (td->terminate) {
186 dprint(FD_FILE, "terminate unlink %s\n", f->file_name);
187 td_io_unlink_file(td, f);
188 } else if (td->o.create_fsync) {
189 if (fsync(f->fd) < 0) {
190 td_verror(td, errno, "fsync");
191 goto err;
192 }
193 }
194 if (td->o.fill_device && !td_write(td)) {
195 fio_file_clear_size_known(f);
196 if (td_io_get_file_size(td, f))
197 goto err;
198 if (f->io_size > f->real_file_size)
199 f->io_size = f->real_file_size;
200 }
201
202 free(b);
203done:
204 return 0;
205err:
206 close(f->fd);
207 f->fd = -1;
208 if (b)
209 free(b);
210 return 1;
211}
212
213static int pre_read_file(struct thread_data *td, struct fio_file *f)
214{
215 int ret = 0, r, did_open = 0, old_runstate;
216 unsigned long long left;
217 unsigned int bs;
218 char *b;
219
220 if (td_ioengine_flagged(td, FIO_PIPEIO))
221 return 0;
222
223 if (!fio_file_open(f)) {
224 if (td->io_ops->open_file(td, f)) {
225 log_err("fio: cannot pre-read, failed to open file\n");
226 return 1;
227 }
228 did_open = 1;
229 }
230
231 old_runstate = td_bump_runstate(td, TD_PRE_READING);
232
233 bs = td->o.max_bs[DDIR_READ];
234 b = malloc(bs);
235 memset(b, 0, bs);
236
237 if (lseek(f->fd, f->file_offset, SEEK_SET) < 0) {
238 td_verror(td, errno, "lseek");
239 log_err("fio: failed to lseek pre-read file\n");
240 ret = 1;
241 goto error;
242 }
243
244 left = f->io_size;
245
246 while (left && !td->terminate) {
247 if (bs > left)
248 bs = left;
249
250 r = read(f->fd, b, bs);
251
252 if (r == (int) bs) {
253 left -= bs;
254 continue;
255 } else {
256 td_verror(td, EIO, "pre_read");
257 break;
258 }
259 }
260
261error:
262 td_restore_runstate(td, old_runstate);
263
264 if (did_open)
265 td->io_ops->close_file(td, f);
266
267 free(b);
268 return ret;
269}
270
271unsigned long long get_rand_file_size(struct thread_data *td)
272{
273 unsigned long long ret, sized;
274 uint64_t frand_max;
275 unsigned long r;
276
277 frand_max = rand_max(&td->file_size_state);
278 r = __rand(&td->file_size_state);
279 sized = td->o.file_size_high - td->o.file_size_low;
280 ret = (unsigned long long) ((double) sized * (r / (frand_max + 1.0)));
281 ret += td->o.file_size_low;
282 ret -= (ret % td->o.rw_min_bs);
283 return ret;
284}
285
286static int file_size(struct thread_data *td, struct fio_file *f)
287{
288 struct stat st;
289
290 if (stat(f->file_name, &st) == -1) {
291 td_verror(td, errno, "fstat");
292 return 1;
293 }
294
295 f->real_file_size = st.st_size;
296 return 0;
297}
298
299static int bdev_size(struct thread_data *td, struct fio_file *f)
300{
301 unsigned long long bytes = 0;
302 int r;
303
304 if (td->io_ops->open_file(td, f)) {
305 log_err("fio: failed opening blockdev %s for size check\n",
306 f->file_name);
307 return 1;
308 }
309
310 r = blockdev_size(f, &bytes);
311 if (r) {
312 td_verror(td, r, "blockdev_size");
313 goto err;
314 }
315
316 if (!bytes) {
317 log_err("%s: zero sized block device?\n", f->file_name);
318 goto err;
319 }
320
321 f->real_file_size = bytes;
322 td->io_ops->close_file(td, f);
323 return 0;
324err:
325 td->io_ops->close_file(td, f);
326 return 1;
327}
328
329static int char_size(struct thread_data *td, struct fio_file *f)
330{
331#ifdef FIO_HAVE_CHARDEV_SIZE
332 unsigned long long bytes = 0;
333 int r;
334
335 if (td->io_ops->open_file(td, f)) {
336 log_err("fio: failed opening chardev %s for size check\n",
337 f->file_name);
338 return 1;
339 }
340
341 r = chardev_size(f, &bytes);
342 if (r) {
343 td_verror(td, r, "chardev_size");
344 goto err;
345 }
346
347 if (!bytes) {
348 log_err("%s: zero sized char device?\n", f->file_name);
349 goto err;
350 }
351
352 f->real_file_size = bytes;
353 td->io_ops->close_file(td, f);
354 return 0;
355err:
356 td->io_ops->close_file(td, f);
357 return 1;
358#else
359 f->real_file_size = -1ULL;
360 return 0;
361#endif
362}
363
364static int get_file_size(struct thread_data *td, struct fio_file *f)
365{
366 int ret = 0;
367
368 if (fio_file_size_known(f))
369 return 0;
370
371 if (f->filetype == FIO_TYPE_FILE)
372 ret = file_size(td, f);
373 else if (f->filetype == FIO_TYPE_BLOCK)
374 ret = bdev_size(td, f);
375 else if (f->filetype == FIO_TYPE_CHAR)
376 ret = char_size(td, f);
377 else
378 f->real_file_size = -1ULL;
379
380 if (ret) {
381 f->real_file_size = -1ULL;
382 return ret;
383 }
384
385 if (f->file_offset > f->real_file_size) {
386 log_err("%s: offset extends end (%llu > %llu)\n", td->o.name,
387 (unsigned long long) f->file_offset,
388 (unsigned long long) f->real_file_size);
389 return 1;
390 }
391
392 fio_file_set_size_known(f);
393 return 0;
394}
395
396static int __file_invalidate_cache(struct thread_data *td, struct fio_file *f,
397 unsigned long long off,
398 unsigned long long len)
399{
400 int errval = 0, ret = 0;
401
402#ifdef CONFIG_ESX
403 return 0;
404#endif
405
406 if (len == -1ULL)
407 len = f->io_size;
408 if (off == -1ULL)
409 off = f->file_offset;
410
411 if (len == -1ULL || off == -1ULL)
412 return 0;
413
414 dprint(FD_IO, "invalidate cache %s: %llu/%llu\n", f->file_name, off,
415 len);
416
417 if (td->io_ops->invalidate) {
418 ret = td->io_ops->invalidate(td, f);
419 if (ret < 0)
420 errval = ret;
421 } else if (f->filetype == FIO_TYPE_FILE) {
422 ret = posix_fadvise(f->fd, off, len, POSIX_FADV_DONTNEED);
423 if (ret)
424 errval = ret;
425 } else if (f->filetype == FIO_TYPE_BLOCK) {
426 int retry_count = 0;
427
428 ret = blockdev_invalidate_cache(f);
429 while (ret < 0 && errno == EAGAIN && retry_count++ < 25) {
430 /*
431 * Linux multipath devices reject ioctl while
432 * the maps are being updated. That window can
433 * last tens of milliseconds; we'll try up to
434 * a quarter of a second.
435 */
436 usleep(10000);
437 ret = blockdev_invalidate_cache(f);
438 }
439 if (ret < 0 && errno == EACCES && geteuid()) {
440 if (!root_warn) {
441 log_err("fio: only root may flush block "
442 "devices. Cache flush bypassed!\n");
443 root_warn = 1;
444 }
445 ret = 0;
446 }
447 if (ret < 0)
448 errval = errno;
449 } else if (f->filetype == FIO_TYPE_CHAR || f->filetype == FIO_TYPE_PIPE)
450 ret = 0;
451
452 /*
453 * Cache flushing isn't a fatal condition, and we know it will
454 * happen on some platforms where we don't have the proper
455 * function to flush eg block device caches. So just warn and
456 * continue on our way.
457 */
458 if (errval)
459 log_info("fio: cache invalidation of %s failed: %s\n", f->file_name, strerror(errval));
460
461 return 0;
462
463}
464
465int file_invalidate_cache(struct thread_data *td, struct fio_file *f)
466{
467 if (!fio_file_open(f))
468 return 0;
469
470 return __file_invalidate_cache(td, f, -1ULL, -1ULL);
471}
472
473int generic_close_file(struct thread_data fio_unused *td, struct fio_file *f)
474{
475 int ret = 0;
476
477 dprint(FD_FILE, "fd close %s\n", f->file_name);
478
479 remove_file_hash(f);
480
481 if (close(f->fd) < 0)
482 ret = errno;
483
484 f->fd = -1;
485
486 if (f->shadow_fd != -1) {
487 close(f->shadow_fd);
488 f->shadow_fd = -1;
489 }
490
491 f->engine_data = 0;
492 return ret;
493}
494
495int file_lookup_open(struct fio_file *f, int flags)
496{
497 struct fio_file *__f;
498 int from_hash;
499
500 __f = lookup_file_hash(f->file_name);
501 if (__f) {
502 dprint(FD_FILE, "found file in hash %s\n", f->file_name);
503 /*
504 * racy, need the __f->lock locked
505 */
506 f->lock = __f->lock;
507 from_hash = 1;
508 } else {
509 dprint(FD_FILE, "file not found in hash %s\n", f->file_name);
510 from_hash = 0;
511 }
512
513#ifdef WIN32
514 flags |= _O_BINARY;
515#endif
516
517 f->fd = open(f->file_name, flags, 0600);
518 return from_hash;
519}
520
521static int file_close_shadow_fds(struct thread_data *td)
522{
523 struct fio_file *f;
524 int num_closed = 0;
525 unsigned int i;
526
527 for_each_file(td, f, i) {
528 if (f->shadow_fd == -1)
529 continue;
530
531 close(f->shadow_fd);
532 f->shadow_fd = -1;
533 num_closed++;
534 }
535
536 return num_closed;
537}
538
539int generic_open_file(struct thread_data *td, struct fio_file *f)
540{
541 int is_std = 0;
542 int flags = 0;
543 int from_hash = 0;
544
545 dprint(FD_FILE, "fd open %s\n", f->file_name);
546
547 if (!strcmp(f->file_name, "-")) {
548 if (td_rw(td)) {
549 log_err("fio: can't read/write to stdin/out\n");
550 return 1;
551 }
552 is_std = 1;
553
554 /*
555 * move output logging to stderr, if we are writing to stdout
556 */
557 if (td_write(td))
558 f_out = stderr;
559 }
560
561 if (td_trim(td))
562 goto skip_flags;
563 if (td->o.odirect)
564 flags |= OS_O_DIRECT;
565 if (td->o.oatomic) {
566 if (!FIO_O_ATOMIC) {
567 td_verror(td, EINVAL, "OS does not support atomic IO");
568 return 1;
569 }
570 flags |= OS_O_DIRECT | FIO_O_ATOMIC;
571 }
572 if (td->o.sync_io)
573 flags |= O_SYNC;
574 if (td->o.create_on_open && td->o.allow_create)
575 flags |= O_CREAT;
576skip_flags:
577 if (f->filetype != FIO_TYPE_FILE)
578 flags |= FIO_O_NOATIME;
579
580open_again:
581 if (td_write(td)) {
582 if (!read_only)
583 flags |= O_RDWR;
584
585 if (f->filetype == FIO_TYPE_FILE && td->o.allow_create)
586 flags |= O_CREAT;
587
588 if (is_std)
589 f->fd = dup(STDOUT_FILENO);
590 else
591 from_hash = file_lookup_open(f, flags);
592 } else if (td_read(td)) {
593 if (f->filetype == FIO_TYPE_CHAR && !read_only)
594 flags |= O_RDWR;
595 else
596 flags |= O_RDONLY;
597
598 if (is_std)
599 f->fd = dup(STDIN_FILENO);
600 else
601 from_hash = file_lookup_open(f, flags);
602 } else { //td trim
603 flags |= O_RDWR;
604 from_hash = file_lookup_open(f, flags);
605 }
606
607 if (f->fd == -1) {
608 char buf[FIO_VERROR_SIZE];
609 int __e = errno;
610
611 if (__e == EPERM && (flags & FIO_O_NOATIME)) {
612 flags &= ~FIO_O_NOATIME;
613 goto open_again;
614 }
615 if (__e == EMFILE && file_close_shadow_fds(td))
616 goto open_again;
617
618 snprintf(buf, sizeof(buf), "open(%s)", f->file_name);
619
620 if (__e == EINVAL && (flags & OS_O_DIRECT)) {
621 log_err("fio: looks like your file system does not " \
622 "support direct=1/buffered=0\n");
623 }
624
625 td_verror(td, __e, buf);
626 return 1;
627 }
628
629 if (!from_hash && f->fd != -1) {
630 if (add_file_hash(f)) {
631 int fio_unused ret;
632
633 /*
634 * Stash away descriptor for later close. This is to
635 * work-around a "feature" on Linux, where a close of
636 * an fd that has been opened for write will trigger
637 * udev to call blkid to check partitions, fs id, etc.
638 * That pollutes the device cache, which can slow down
639 * unbuffered accesses.
640 */
641 if (f->shadow_fd == -1)
642 f->shadow_fd = f->fd;
643 else {
644 /*
645 * OK to ignore, we haven't done anything
646 * with it
647 */
648 ret = generic_close_file(td, f);
649 }
650 goto open_again;
651 }
652 }
653
654 return 0;
655}
656
657int generic_get_file_size(struct thread_data *td, struct fio_file *f)
658{
659 return get_file_size(td, f);
660}
661
662/*
663 * open/close all files, so that ->real_file_size gets set
664 */
665static int get_file_sizes(struct thread_data *td)
666{
667 struct fio_file *f;
668 unsigned int i;
669 int err = 0;
670
671 for_each_file(td, f, i) {
672 dprint(FD_FILE, "get file size for %p/%d/%p\n", f, i,
673 f->file_name);
674
675 if (td_io_get_file_size(td, f)) {
676 if (td->error != ENOENT) {
677 log_err("%s\n", td->verror);
678 err = 1;
679 break;
680 }
681 clear_error(td);
682 }
683
684 if (f->real_file_size == -1ULL && td->o.size)
685 f->real_file_size = td->o.size / td->o.nr_files;
686 }
687
688 return err;
689}
690
691struct fio_mount {
692 struct flist_head list;
693 const char *base;
694 char __base[256];
695 unsigned int key;
696};
697
698/*
699 * Get free number of bytes for each file on each unique mount.
700 */
701static unsigned long long get_fs_free_counts(struct thread_data *td)
702{
703 struct flist_head *n, *tmp;
704 unsigned long long ret = 0;
705 struct fio_mount *fm;
706 FLIST_HEAD(list);
707 struct fio_file *f;
708 unsigned int i;
709
710 for_each_file(td, f, i) {
711 struct stat sb;
712 char buf[256];
713
714 if (f->filetype == FIO_TYPE_BLOCK || f->filetype == FIO_TYPE_CHAR) {
715 if (f->real_file_size != -1ULL)
716 ret += f->real_file_size;
717 continue;
718 } else if (f->filetype != FIO_TYPE_FILE)
719 continue;
720
721 buf[255] = '\0';
722 strncpy(buf, f->file_name, 255);
723
724 if (stat(buf, &sb) < 0) {
725 if (errno != ENOENT)
726 break;
727 strcpy(buf, ".");
728 if (stat(buf, &sb) < 0)
729 break;
730 }
731
732 fm = NULL;
733 flist_for_each(n, &list) {
734 fm = flist_entry(n, struct fio_mount, list);
735 if (fm->key == sb.st_dev)
736 break;
737
738 fm = NULL;
739 }
740
741 if (fm)
742 continue;
743
744 fm = calloc(1, sizeof(*fm));
745 strncpy(fm->__base, buf, sizeof(fm->__base) - 1);
746 fm->base = basename(fm->__base);
747 fm->key = sb.st_dev;
748 flist_add(&fm->list, &list);
749 }
750
751 flist_for_each_safe(n, tmp, &list) {
752 unsigned long long sz;
753
754 fm = flist_entry(n, struct fio_mount, list);
755 flist_del(&fm->list);
756
757 sz = get_fs_free_size(fm->base);
758 if (sz && sz != -1ULL)
759 ret += sz;
760
761 free(fm);
762 }
763
764 return ret;
765}
766
767uint64_t get_start_offset(struct thread_data *td, struct fio_file *f)
768{
769 struct thread_options *o = &td->o;
770
771 if (o->file_append && f->filetype == FIO_TYPE_FILE)
772 return f->real_file_size;
773
774 return td->o.start_offset +
775 td->subjob_number * td->o.offset_increment;
776}
777
778/*
779 * Open the files and setup files sizes, creating files if necessary.
780 */
781int setup_files(struct thread_data *td)
782{
783 unsigned long long total_size, extend_size;
784 struct thread_options *o = &td->o;
785 struct fio_file *f;
786 unsigned int i, nr_fs_extra = 0;
787 int err = 0, need_extend;
788 int old_state;
789 const unsigned int bs = td_min_bs(td);
790 uint64_t fs = 0;
791
792 dprint(FD_FILE, "setup files\n");
793
794 old_state = td_bump_runstate(td, TD_SETTING_UP);
795
796 if (o->read_iolog_file)
797 goto done;
798
799 /*
800 * if ioengine defines a setup() method, it's responsible for
801 * opening the files and setting f->real_file_size to indicate
802 * the valid range for that file.
803 */
804 if (td->io_ops->setup)
805 err = td->io_ops->setup(td);
806 else
807 err = get_file_sizes(td);
808
809 if (err)
810 goto err_out;
811
812 /*
813 * check sizes. if the files/devices do not exist and the size
814 * isn't passed to fio, abort.
815 */
816 total_size = 0;
817 for_each_file(td, f, i) {
818 f->fileno = i;
819 if (f->real_file_size == -1ULL)
820 total_size = -1ULL;
821 else
822 total_size += f->real_file_size;
823 }
824
825 if (o->fill_device)
826 td->fill_device_size = get_fs_free_counts(td);
827
828 /*
829 * device/file sizes are zero and no size given, punt
830 */
831 if ((!total_size || total_size == -1ULL) && !o->size &&
832 !td_ioengine_flagged(td, FIO_NOIO) && !o->fill_device &&
833 !(o->nr_files && (o->file_size_low || o->file_size_high))) {
834 log_err("%s: you need to specify size=\n", o->name);
835 td_verror(td, EINVAL, "total_file_size");
836 goto err_out;
837 }
838
839 /*
840 * Calculate per-file size and potential extra size for the
841 * first files, if needed.
842 */
843 if (!o->file_size_low && o->nr_files) {
844 uint64_t all_fs;
845
846 fs = o->size / o->nr_files;
847 all_fs = fs * o->nr_files;
848
849 if (all_fs < o->size)
850 nr_fs_extra = (o->size - all_fs) / bs;
851 }
852
853 /*
854 * now file sizes are known, so we can set ->io_size. if size= is
855 * not given, ->io_size is just equal to ->real_file_size. if size
856 * is given, ->io_size is size / nr_files.
857 */
858 extend_size = total_size = 0;
859 need_extend = 0;
860 for_each_file(td, f, i) {
861 f->file_offset = get_start_offset(td, f);
862
863 if (!o->file_size_low) {
864 /*
865 * no file size range given, file size is equal to
866 * total size divided by number of files. If that is
867 * zero, set it to the real file size. If the size
868 * doesn't divide nicely with the min blocksize,
869 * make the first files bigger.
870 */
871 f->io_size = fs;
872 if (nr_fs_extra) {
873 nr_fs_extra--;
874 f->io_size += bs;
875 }
876
877 if (!f->io_size)
878 f->io_size = f->real_file_size - f->file_offset;
879 } else if (f->real_file_size < o->file_size_low ||
880 f->real_file_size > o->file_size_high) {
881 if (f->file_offset > o->file_size_low)
882 goto err_offset;
883 /*
884 * file size given. if it's fixed, use that. if it's a
885 * range, generate a random size in-between.
886 */
887 if (o->file_size_low == o->file_size_high)
888 f->io_size = o->file_size_low - f->file_offset;
889 else {
890 f->io_size = get_rand_file_size(td)
891 - f->file_offset;
892 }
893 } else
894 f->io_size = f->real_file_size - f->file_offset;
895
896 if (f->io_size == -1ULL)
897 total_size = -1ULL;
898 else {
899 if (o->size_percent) {
900 f->io_size = (f->io_size * o->size_percent) / 100;
901 f->io_size -= (f->io_size % td_min_bs(td));
902 }
903 total_size += f->io_size;
904 }
905
906 if (f->filetype == FIO_TYPE_FILE &&
907 (f->io_size + f->file_offset) > f->real_file_size &&
908 !td_ioengine_flagged(td, FIO_DISKLESSIO)) {
909 if (!o->create_on_open) {
910 need_extend++;
911 extend_size += (f->io_size + f->file_offset);
912 } else
913 f->real_file_size = f->io_size + f->file_offset;
914 fio_file_set_extend(f);
915 }
916 }
917
918 if (td->o.block_error_hist) {
919 int len;
920
921 assert(td->o.nr_files == 1); /* checked in fixup_options */
922 f = td->files[0];
923 len = f->io_size / td->o.bs[DDIR_TRIM];
924 if (len > MAX_NR_BLOCK_INFOS || len <= 0) {
925 log_err("fio: cannot calculate block histogram with "
926 "%d trim blocks, maximum %d\n",
927 len, MAX_NR_BLOCK_INFOS);
928 td_verror(td, EINVAL, "block_error_hist");
929 goto err_out;
930 }
931
932 td->ts.nr_block_infos = len;
933 for (i = 0; i < len; i++)
934 td->ts.block_infos[i] =
935 BLOCK_INFO(0, BLOCK_STATE_UNINIT);
936 } else
937 td->ts.nr_block_infos = 0;
938
939 if (!o->size || (total_size && o->size > total_size))
940 o->size = total_size;
941
942 if (o->size < td_min_bs(td)) {
943 log_err("fio: blocksize too large for data set\n");
944 goto err_out;
945 }
946
947 /*
948 * See if we need to extend some files
949 */
950 if (need_extend) {
951 temp_stall_ts = 1;
952 if (output_format & FIO_OUTPUT_NORMAL)
953 log_info("%s: Laying out IO file(s) (%u file(s) / %lluMiB)\n",
954 o->name, need_extend, extend_size >> 20);
955
956 for_each_file(td, f, i) {
957 unsigned long long old_len = -1ULL, extend_len = -1ULL;
958
959 if (!fio_file_extend(f))
960 continue;
961
962 assert(f->filetype == FIO_TYPE_FILE);
963 fio_file_clear_extend(f);
964 if (!o->fill_device) {
965 old_len = f->real_file_size;
966 extend_len = f->io_size + f->file_offset -
967 old_len;
968 }
969 f->real_file_size = (f->io_size + f->file_offset);
970 err = extend_file(td, f);
971 if (err)
972 break;
973
974 err = __file_invalidate_cache(td, f, old_len,
975 extend_len);
976
977 /*
978 * Shut up static checker
979 */
980 if (f->fd != -1)
981 close(f->fd);
982
983 f->fd = -1;
984 if (err)
985 break;
986 }
987 temp_stall_ts = 0;
988 }
989
990 if (err)
991 goto err_out;
992
993 if (!o->zone_size)
994 o->zone_size = o->size;
995
996 /*
997 * iolog already set the total io size, if we read back
998 * stored entries.
999 */
1000 if (!o->read_iolog_file) {
1001 if (o->io_limit)
1002 td->total_io_size = o->io_limit * o->loops;
1003 else
1004 td->total_io_size = o->size * o->loops;
1005 }
1006
1007done:
1008 if (o->create_only)
1009 td->done = 1;
1010
1011 td_restore_runstate(td, old_state);
1012 return 0;
1013err_offset:
1014 log_err("%s: you need to specify valid offset=\n", o->name);
1015err_out:
1016 td_restore_runstate(td, old_state);
1017 return 1;
1018}
1019
1020int pre_read_files(struct thread_data *td)
1021{
1022 struct fio_file *f;
1023 unsigned int i;
1024
1025 dprint(FD_FILE, "pre_read files\n");
1026
1027 for_each_file(td, f, i) {
1028 pre_read_file(td, f);
1029 }
1030
1031 return 1;
1032}
1033
1034static int __init_rand_distribution(struct thread_data *td, struct fio_file *f)
1035{
1036 unsigned int range_size, seed;
1037 unsigned long nranges;
1038 uint64_t fsize;
1039
1040 range_size = min(td->o.min_bs[DDIR_READ], td->o.min_bs[DDIR_WRITE]);
1041 fsize = min(f->real_file_size, f->io_size);
1042
1043 nranges = (fsize + range_size - 1) / range_size;
1044
1045 seed = jhash(f->file_name, strlen(f->file_name), 0) * td->thread_number;
1046 if (!td->o.rand_repeatable)
1047 seed = td->rand_seeds[4];
1048
1049 if (td->o.random_distribution == FIO_RAND_DIST_ZIPF)
1050 zipf_init(&f->zipf, nranges, td->o.zipf_theta.u.f, seed);
1051 else if (td->o.random_distribution == FIO_RAND_DIST_PARETO)
1052 pareto_init(&f->zipf, nranges, td->o.pareto_h.u.f, seed);
1053 else if (td->o.random_distribution == FIO_RAND_DIST_GAUSS)
1054 gauss_init(&f->gauss, nranges, td->o.gauss_dev.u.f, seed);
1055
1056 return 1;
1057}
1058
1059static int init_rand_distribution(struct thread_data *td)
1060{
1061 struct fio_file *f;
1062 unsigned int i;
1063 int state;
1064
1065 if (td->o.random_distribution == FIO_RAND_DIST_RANDOM)
1066 return 0;
1067
1068 state = td_bump_runstate(td, TD_SETTING_UP);
1069
1070 for_each_file(td, f, i)
1071 __init_rand_distribution(td, f);
1072
1073 td_restore_runstate(td, state);
1074
1075 return 1;
1076}
1077
1078/*
1079 * Check if the number of blocks exceeds the randomness capability of
1080 * the selected generator. Tausworthe is 32-bit, the others are fullly
1081 * 64-bit capable.
1082 */
1083static int check_rand_gen_limits(struct thread_data *td, struct fio_file *f,
1084 uint64_t blocks)
1085{
1086 if (blocks <= FRAND32_MAX)
1087 return 0;
1088 if (td->o.random_generator != FIO_RAND_GEN_TAUSWORTHE)
1089 return 0;
1090
1091 /*
1092 * If the user hasn't specified a random generator, switch
1093 * to tausworthe64 with informational warning. If the user did
1094 * specify one, just warn.
1095 */
1096 log_info("fio: file %s exceeds 32-bit tausworthe random generator.\n",
1097 f->file_name);
1098
1099 if (!fio_option_is_set(&td->o, random_generator)) {
1100 log_info("fio: Switching to tausworthe64. Use the "
1101 "random_generator= option to get rid of this "
1102 "warning.\n");
1103 td->o.random_generator = FIO_RAND_GEN_TAUSWORTHE64;
1104 return 0;
1105 }
1106
1107 /*
1108 * Just make this information to avoid breaking scripts.
1109 */
1110 log_info("fio: Use the random_generator= option to switch to lfsr or "
1111 "tausworthe64.\n");
1112 return 0;
1113}
1114
1115int init_random_map(struct thread_data *td)
1116{
1117 unsigned long long blocks;
1118 struct fio_file *f;
1119 unsigned int i;
1120
1121 if (init_rand_distribution(td))
1122 return 0;
1123 if (!td_random(td))
1124 return 0;
1125
1126 for_each_file(td, f, i) {
1127 uint64_t fsize = min(f->real_file_size, f->io_size);
1128
1129 blocks = fsize / (unsigned long long) td->o.rw_min_bs;
1130
1131 if (check_rand_gen_limits(td, f, blocks))
1132 return 1;
1133
1134 if (td->o.random_generator == FIO_RAND_GEN_LFSR) {
1135 unsigned long seed;
1136
1137 seed = td->rand_seeds[FIO_RAND_BLOCK_OFF];
1138
1139 if (!lfsr_init(&f->lfsr, blocks, seed, 0)) {
1140 fio_file_set_lfsr(f);
1141 continue;
1142 }
1143 } else if (!td->o.norandommap) {
1144 f->io_axmap = axmap_new(blocks);
1145 if (f->io_axmap) {
1146 fio_file_set_axmap(f);
1147 continue;
1148 }
1149 } else if (td->o.norandommap)
1150 continue;
1151
1152 if (!td->o.softrandommap) {
1153 log_err("fio: failed allocating random map. If running"
1154 " a large number of jobs, try the 'norandommap'"
1155 " option or set 'softrandommap'. Or give"
1156 " a larger --alloc-size to fio.\n");
1157 return 1;
1158 }
1159
1160 log_info("fio: file %s failed allocating random map. Running "
1161 "job without.\n", f->file_name);
1162 }
1163
1164 return 0;
1165}
1166
1167void close_files(struct thread_data *td)
1168{
1169 struct fio_file *f;
1170 unsigned int i;
1171
1172 for_each_file(td, f, i) {
1173 if (fio_file_open(f))
1174 td_io_close_file(td, f);
1175 }
1176}
1177
1178void close_and_free_files(struct thread_data *td)
1179{
1180 struct fio_file *f;
1181 unsigned int i;
1182
1183 dprint(FD_FILE, "close files\n");
1184
1185 for_each_file(td, f, i) {
1186 if (td->o.unlink && f->filetype == FIO_TYPE_FILE) {
1187 dprint(FD_FILE, "free unlink %s\n", f->file_name);
1188 td_io_unlink_file(td, f);
1189 }
1190
1191 if (fio_file_open(f))
1192 td_io_close_file(td, f);
1193
1194 remove_file_hash(f);
1195
1196 if (td->o.unlink && f->filetype == FIO_TYPE_FILE) {
1197 dprint(FD_FILE, "free unlink %s\n", f->file_name);
1198 td_io_unlink_file(td, f);
1199 }
1200
1201 sfree(f->file_name);
1202 f->file_name = NULL;
1203 if (fio_file_axmap(f)) {
1204 axmap_free(f->io_axmap);
1205 f->io_axmap = NULL;
1206 }
1207 sfree(f);
1208 }
1209
1210 td->o.filename = NULL;
1211 free(td->files);
1212 free(td->file_locks);
1213 td->files_index = 0;
1214 td->files = NULL;
1215 td->file_locks = NULL;
1216 td->o.file_lock_mode = FILE_LOCK_NONE;
1217 td->o.nr_files = 0;
1218}
1219
1220static void get_file_type(struct fio_file *f)
1221{
1222 struct stat sb;
1223
1224 if (!strcmp(f->file_name, "-"))
1225 f->filetype = FIO_TYPE_PIPE;
1226 else
1227 f->filetype = FIO_TYPE_FILE;
1228
1229#ifdef WIN32
1230 /* \\.\ is the device namespace in Windows, where every file is
1231 * a block device */
1232 if (strncmp(f->file_name, "\\\\.\\", 4) == 0)
1233 f->filetype = FIO_TYPE_BLOCK;
1234#endif
1235
1236 if (!stat(f->file_name, &sb)) {
1237 if (S_ISBLK(sb.st_mode))
1238 f->filetype = FIO_TYPE_BLOCK;
1239 else if (S_ISCHR(sb.st_mode))
1240 f->filetype = FIO_TYPE_CHAR;
1241 else if (S_ISFIFO(sb.st_mode))
1242 f->filetype = FIO_TYPE_PIPE;
1243 }
1244}
1245
1246static bool __is_already_allocated(const char *fname, bool set)
1247{
1248 struct flist_head *entry;
1249 bool ret;
1250
1251 ret = file_bloom_exists(fname, set);
1252 if (!ret)
1253 return ret;
1254
1255 flist_for_each(entry, &filename_list) {
1256 struct file_name *fn;
1257
1258 fn = flist_entry(entry, struct file_name, list);
1259
1260 if (!strcmp(fn->filename, fname))
1261 return true;
1262 }
1263
1264 return false;
1265}
1266
1267static bool is_already_allocated(const char *fname)
1268{
1269 bool ret;
1270
1271 fio_file_hash_lock();
1272 ret = __is_already_allocated(fname, false);
1273 fio_file_hash_unlock();
1274
1275 return ret;
1276}
1277
1278static void set_already_allocated(const char *fname)
1279{
1280 struct file_name *fn;
1281
1282 fn = malloc(sizeof(struct file_name));
1283 fn->filename = strdup(fname);
1284
1285 fio_file_hash_lock();
1286 if (!__is_already_allocated(fname, true)) {
1287 flist_add_tail(&fn->list, &filename_list);
1288 fn = NULL;
1289 }
1290 fio_file_hash_unlock();
1291
1292 if (fn) {
1293 free(fn->filename);
1294 free(fn);
1295 }
1296}
1297
1298static void free_already_allocated(void)
1299{
1300 struct flist_head *entry, *tmp;
1301 struct file_name *fn;
1302
1303 if (flist_empty(&filename_list))
1304 return;
1305
1306 fio_file_hash_lock();
1307 flist_for_each_safe(entry, tmp, &filename_list) {
1308 fn = flist_entry(entry, struct file_name, list);
1309 free(fn->filename);
1310 flist_del(&fn->list);
1311 free(fn);
1312 }
1313
1314 fio_file_hash_unlock();
1315}
1316
1317static struct fio_file *alloc_new_file(struct thread_data *td)
1318{
1319 struct fio_file *f;
1320
1321 f = smalloc(sizeof(*f));
1322 if (!f) {
1323 assert(0);
1324 return NULL;
1325 }
1326
1327 f->fd = -1;
1328 f->shadow_fd = -1;
1329 fio_file_reset(td, f);
1330 return f;
1331}
1332
1333bool exists_and_not_regfile(const char *filename)
1334{
1335 struct stat sb;
1336
1337 if (lstat(filename, &sb) == -1)
1338 return false;
1339
1340#ifndef WIN32 /* NOT Windows */
1341 if (S_ISREG(sb.st_mode))
1342 return false;
1343#else
1344 /* \\.\ is the device namespace in Windows, where every file
1345 * is a device node */
1346 if (S_ISREG(sb.st_mode) && strncmp(filename, "\\\\.\\", 4) != 0)
1347 return false;
1348#endif
1349
1350 return true;
1351}
1352
1353int add_file(struct thread_data *td, const char *fname, int numjob, int inc)
1354{
1355 int cur_files = td->files_index;
1356 char file_name[PATH_MAX];
1357 struct fio_file *f;
1358 int len = 0;
1359
1360 dprint(FD_FILE, "add file %s\n", fname);
1361
1362 if (td->o.directory)
1363 len = set_name_idx(file_name, PATH_MAX, td->o.directory, numjob,
1364 td->o.unique_filename);
1365
1366 sprintf(file_name + len, "%s", fname);
1367
1368 /* clean cloned siblings using existing files */
1369 if (numjob && is_already_allocated(file_name) &&
1370 !exists_and_not_regfile(fname))
1371 return 0;
1372
1373 f = alloc_new_file(td);
1374
1375 if (td->files_size <= td->files_index) {
1376 unsigned int new_size = td->o.nr_files + 1;
1377
1378 dprint(FD_FILE, "resize file array to %d files\n", new_size);
1379
1380 td->files = realloc(td->files, new_size * sizeof(f));
1381 if (td->files == NULL) {
1382 log_err("fio: realloc OOM\n");
1383 assert(0);
1384 }
1385 if (td->o.file_lock_mode != FILE_LOCK_NONE) {
1386 td->file_locks = realloc(td->file_locks, new_size);
1387 if (!td->file_locks) {
1388 log_err("fio: realloc OOM\n");
1389 assert(0);
1390 }
1391 td->file_locks[cur_files] = FILE_LOCK_NONE;
1392 }
1393 td->files_size = new_size;
1394 }
1395 td->files[cur_files] = f;
1396 f->fileno = cur_files;
1397
1398 /*
1399 * init function, io engine may not be loaded yet
1400 */
1401 if (td->io_ops && td_ioengine_flagged(td, FIO_DISKLESSIO))
1402 f->real_file_size = -1ULL;
1403
1404 f->file_name = smalloc_strdup(file_name);
1405 if (!f->file_name)
1406 assert(0);
1407
1408 get_file_type(f);
1409
1410 switch (td->o.file_lock_mode) {
1411 case FILE_LOCK_NONE:
1412 break;
1413 case FILE_LOCK_READWRITE:
1414 f->rwlock = fio_rwlock_init();
1415 break;
1416 case FILE_LOCK_EXCLUSIVE:
1417 f->lock = fio_mutex_init(FIO_MUTEX_UNLOCKED);
1418 break;
1419 default:
1420 log_err("fio: unknown lock mode: %d\n", td->o.file_lock_mode);
1421 assert(0);
1422 }
1423
1424 td->files_index++;
1425 if (f->filetype == FIO_TYPE_FILE)
1426 td->nr_normal_files++;
1427
1428 set_already_allocated(file_name);
1429
1430 if (inc)
1431 td->o.nr_files++;
1432
1433 dprint(FD_FILE, "file %p \"%s\" added at %d\n", f, f->file_name,
1434 cur_files);
1435
1436 return cur_files;
1437}
1438
1439int add_file_exclusive(struct thread_data *td, const char *fname)
1440{
1441 struct fio_file *f;
1442 unsigned int i;
1443
1444 for_each_file(td, f, i) {
1445 if (!strcmp(f->file_name, fname))
1446 return i;
1447 }
1448
1449 return add_file(td, fname, 0, 1);
1450}
1451
1452void get_file(struct fio_file *f)
1453{
1454 dprint(FD_FILE, "get file %s, ref=%d\n", f->file_name, f->references);
1455 assert(fio_file_open(f));
1456 f->references++;
1457}
1458
1459int put_file(struct thread_data *td, struct fio_file *f)
1460{
1461 int f_ret = 0, ret = 0;
1462
1463 dprint(FD_FILE, "put file %s, ref=%d\n", f->file_name, f->references);
1464
1465 if (!fio_file_open(f)) {
1466 assert(f->fd == -1);
1467 return 0;
1468 }
1469
1470 assert(f->references);
1471 if (--f->references)
1472 return 0;
1473
1474 if (should_fsync(td) && td->o.fsync_on_close) {
1475 f_ret = fsync(f->fd);
1476 if (f_ret < 0)
1477 f_ret = errno;
1478 }
1479
1480 if (td->io_ops->close_file)
1481 ret = td->io_ops->close_file(td, f);
1482
1483 if (!ret)
1484 ret = f_ret;
1485
1486 td->nr_open_files--;
1487 fio_file_clear_open(f);
1488 assert(f->fd == -1);
1489 return ret;
1490}
1491
1492void lock_file(struct thread_data *td, struct fio_file *f, enum fio_ddir ddir)
1493{
1494 if (!f->lock || td->o.file_lock_mode == FILE_LOCK_NONE)
1495 return;
1496
1497 if (td->o.file_lock_mode == FILE_LOCK_READWRITE) {
1498 if (ddir == DDIR_READ)
1499 fio_rwlock_read(f->rwlock);
1500 else
1501 fio_rwlock_write(f->rwlock);
1502 } else if (td->o.file_lock_mode == FILE_LOCK_EXCLUSIVE)
1503 fio_mutex_down(f->lock);
1504
1505 td->file_locks[f->fileno] = td->o.file_lock_mode;
1506}
1507
1508void unlock_file(struct thread_data *td, struct fio_file *f)
1509{
1510 if (!f->lock || td->o.file_lock_mode == FILE_LOCK_NONE)
1511 return;
1512
1513 if (td->o.file_lock_mode == FILE_LOCK_READWRITE)
1514 fio_rwlock_unlock(f->rwlock);
1515 else if (td->o.file_lock_mode == FILE_LOCK_EXCLUSIVE)
1516 fio_mutex_up(f->lock);
1517
1518 td->file_locks[f->fileno] = FILE_LOCK_NONE;
1519}
1520
1521void unlock_file_all(struct thread_data *td, struct fio_file *f)
1522{
1523 if (td->o.file_lock_mode == FILE_LOCK_NONE || !td->file_locks)
1524 return;
1525 if (td->file_locks[f->fileno] != FILE_LOCK_NONE)
1526 unlock_file(td, f);
1527}
1528
1529static int recurse_dir(struct thread_data *td, const char *dirname)
1530{
1531 struct dirent *dir;
1532 int ret = 0;
1533 DIR *D;
1534
1535 D = opendir(dirname);
1536 if (!D) {
1537 char buf[FIO_VERROR_SIZE];
1538
1539 snprintf(buf, FIO_VERROR_SIZE, "opendir(%s)", dirname);
1540 td_verror(td, errno, buf);
1541 return 1;
1542 }
1543
1544 while ((dir = readdir(D)) != NULL) {
1545 char full_path[PATH_MAX];
1546 struct stat sb;
1547
1548 if (!strcmp(dir->d_name, ".") || !strcmp(dir->d_name, ".."))
1549 continue;
1550
1551 sprintf(full_path, "%s%s%s", dirname, FIO_OS_PATH_SEPARATOR, dir->d_name);
1552
1553 if (lstat(full_path, &sb) == -1) {
1554 if (errno != ENOENT) {
1555 td_verror(td, errno, "stat");
1556 ret = 1;
1557 break;
1558 }
1559 }
1560
1561 if (S_ISREG(sb.st_mode)) {
1562 add_file(td, full_path, 0, 1);
1563 continue;
1564 }
1565 if (!S_ISDIR(sb.st_mode))
1566 continue;
1567
1568 ret = recurse_dir(td, full_path);
1569 if (ret)
1570 break;
1571 }
1572
1573 closedir(D);
1574 return ret;
1575}
1576
1577int add_dir_files(struct thread_data *td, const char *path)
1578{
1579 int ret = recurse_dir(td, path);
1580
1581 if (!ret)
1582 log_info("fio: opendir added %d files\n", td->o.nr_files);
1583
1584 return ret;
1585}
1586
1587void dup_files(struct thread_data *td, struct thread_data *org)
1588{
1589 struct fio_file *f;
1590 unsigned int i;
1591
1592 dprint(FD_FILE, "dup files: %d\n", org->files_index);
1593
1594 if (!org->files)
1595 return;
1596
1597 td->files = malloc(org->files_index * sizeof(f));
1598
1599 if (td->o.file_lock_mode != FILE_LOCK_NONE)
1600 td->file_locks = malloc(org->files_index);
1601
1602 for_each_file(org, f, i) {
1603 struct fio_file *__f;
1604
1605 __f = alloc_new_file(td);
1606
1607 if (f->file_name) {
1608 __f->file_name = smalloc_strdup(f->file_name);
1609 if (!__f->file_name)
1610 assert(0);
1611
1612 __f->filetype = f->filetype;
1613 }
1614
1615 if (td->o.file_lock_mode == FILE_LOCK_EXCLUSIVE)
1616 __f->lock = f->lock;
1617 else if (td->o.file_lock_mode == FILE_LOCK_READWRITE)
1618 __f->rwlock = f->rwlock;
1619
1620 td->files[i] = __f;
1621 }
1622}
1623
1624/*
1625 * Returns the index that matches the filename, or -1 if not there
1626 */
1627int get_fileno(struct thread_data *td, const char *fname)
1628{
1629 struct fio_file *f;
1630 unsigned int i;
1631
1632 for_each_file(td, f, i)
1633 if (!strcmp(f->file_name, fname))
1634 return i;
1635
1636 return -1;
1637}
1638
1639/*
1640 * For log usage, where we add/open/close files automatically
1641 */
1642void free_release_files(struct thread_data *td)
1643{
1644 close_files(td);
1645 td->o.nr_files = 0;
1646 td->o.open_files = 0;
1647 td->files_index = 0;
1648 td->nr_normal_files = 0;
1649}
1650
1651void fio_file_reset(struct thread_data *td, struct fio_file *f)
1652{
1653 int i;
1654
1655 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1656 f->last_pos[i] = f->file_offset;
1657 f->last_start[i] = -1ULL;
1658 }
1659
1660 if (fio_file_axmap(f))
1661 axmap_reset(f->io_axmap);
1662 else if (fio_file_lfsr(f))
1663 lfsr_reset(&f->lfsr, td->rand_seeds[FIO_RAND_BLOCK_OFF]);
1664}
1665
1666bool fio_files_done(struct thread_data *td)
1667{
1668 struct fio_file *f;
1669 unsigned int i;
1670
1671 for_each_file(td, f, i)
1672 if (!fio_file_done(f))
1673 return false;
1674
1675 return true;
1676}
1677
1678/* free memory used in initialization phase only */
1679void filesetup_mem_free(void)
1680{
1681 free_already_allocated();
1682}
fio - Flexible IO Tester