filesetup.c

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