filesetup.c

   1 #include <unistd.h>
   2 #include <fcntl.h>
   3 #include <string.h>
   4 #include <assert.h>
   5 #include <dirent.h>
   6 #include <sys/stat.h>
   7 #include <sys/mman.h>
   8 #include <sys/types.h>
   9
  10 #include "fio.h"
  11 #include "smalloc.h"
  12 #include "filehash.h"
  13
  14 static int root_warn;
  15
  16 static int extend_file(struct thread_data *td, struct fio_file *f)
  17 {
  18         int r, new_layout = 0, unlink_file = 0, flags;
  19         unsigned long long left;
  20         unsigned int bs;
  21         char *b;
  22
  23         if (read_only) {
  24                 log_err("fio: refusing extend of file due to read-only\n");
  25                 return 0;
  26         }
  27
  28         /*
  29          * check if we need to lay the file out complete again. fio
  30          * does that for operations involving reads, or for writes
  31          * where overwrite is set
  32          */
  33         if (td_read(td) || (td_write(td) && td->o.overwrite))
  34                 new_layout = 1;
  35         if (td_write(td) && !td->o.overwrite)
  36                 unlink_file = 1;
  37
  38         if (unlink_file || new_layout) {
  39                 if ((unlink(f->file_name) < 0) && (errno != ENOENT)) {
  40                         td_verror(td, errno, "unlink");
  41                         return 1;
  42                 }
  43         }
  44
  45         flags = O_WRONLY | O_CREAT;
  46         if (new_layout)
  47                 flags |= O_TRUNC;
  48
  49         dprint(FD_FILE, "open file %s, flags %x\n", f->file_name, flags);
  50         f->fd = open(f->file_name, flags, 0644);
  51         if (f->fd < 0) {
  52                 td_verror(td, errno, "open");
  53                 return 1;
  54         }
  55
  56         if (!new_layout)
  57                 goto done;
  58
  59         dprint(FD_FILE, "truncate file %s, size %llu\n", f->file_name,
  60                                                         f->real_file_size);
  61         if (ftruncate(f->fd, f->real_file_size) == -1) {
  62                 td_verror(td, errno, "ftruncate");
  63                 goto err;
  64         }
  65
  66         dprint(FD_FILE, "fallocate file %s, size %llu\n", f->file_name,
  67                                                         f->real_file_size);
  68         if (posix_fallocate(f->fd, 0, f->real_file_size) < 0) {
  69                 td_verror(td, errno, "posix_fallocate");
  70                 goto err;
  71         }
  72
  73         b = malloc(td->o.max_bs[DDIR_WRITE]);
  74         memset(b, 0, td->o.max_bs[DDIR_WRITE]);
  75
  76         left = f->real_file_size;
  77         while (left && !td->terminate) {
  78                 bs = td->o.max_bs[DDIR_WRITE];
  79                 if (bs > left)
  80                         bs = left;
  81
  82                 r = write(f->fd, b, bs);
  83
  84                 if (r == (int) bs) {
  85                         left -= bs;
  86                         continue;
  87                 } else {
  88                         if (r < 0)
  89                                 td_verror(td, errno, "write");
  90                         else
  91                                 td_verror(td, EIO, "write");
  92
  93                         break;
  94                 }
  95         }
  96
  97         if (td->terminate)
  98                 unlink(f->file_name);
  99         else if (td->o.create_fsync)
 100                 fsync(f->fd);
 101
 102         free(b);
 103 done:
 104         close(f->fd);
 105         f->fd = -1;
 106         return 0;
 107 err:
 108         close(f->fd);
 109         f->fd = -1;
 110         return 1;
 111 }
 112
 113 static unsigned long long get_rand_file_size(struct thread_data *td)
 114 {
 115         unsigned long long ret;
 116         long r;
 117
 118         r = os_random_long(&td->file_size_state);
 119         ret = td->o.file_size_low + (unsigned long long) ((double) (td->o.file_size_high - td->o.file_size_low) * (r / (RAND_MAX + 1.0)));
 120         ret -= (ret % td->o.rw_min_bs);
 121         return ret;
 122 }
 123
 124 static int file_size(struct thread_data *td, struct fio_file *f)
 125 {
 126         struct stat st;
 127
 128         if (fstat(f->fd, &st) == -1) {
 129                 td_verror(td, errno, "fstat");
 130                 return 1;
 131         }
 132
 133         f->real_file_size = st.st_size;
 134         return 0;
 135 }
 136
 137 static int bdev_size(struct thread_data *td, struct fio_file *f)
 138 {
 139         unsigned long long bytes;
 140         int r;
 141
 142         r = blockdev_size(f->fd, &bytes);
 143         if (r) {
 144                 td_verror(td, r, "blockdev_size");
 145                 return 1;
 146         }
 147
 148         f->real_file_size = bytes;
 149         return 0;
 150 }
 151
 152 static int get_file_size(struct thread_data *td, struct fio_file *f)
 153 {
 154         int ret = 0;
 155
 156         if (f->flags & FIO_SIZE_KNOWN)
 157                 return 0;
 158
 159         if (f->filetype == FIO_TYPE_FILE)
 160                 ret = file_size(td, f);
 161         else if (f->filetype == FIO_TYPE_BD)
 162                 ret = bdev_size(td, f);
 163         else
 164                 f->real_file_size = -1;
 165
 166         if (ret)
 167                 return ret;
 168
 169         if (f->file_offset > f->real_file_size) {
 170                 log_err("%s: offset extends end (%Lu > %Lu)\n", td->o.name, f->file_offset, f->real_file_size);
 171                 return 1;
 172         }
 173
 174         f->flags |= FIO_SIZE_KNOWN;
 175         return 0;
 176 }
 177
 178 int file_invalidate_cache(struct thread_data *td, struct fio_file *f)
 179 {
 180         int ret = 0;
 181
 182         dprint(FD_IO, "invalidate cache (%d)\n", td->o.odirect);
 183
 184         if (td->o.odirect)
 185                 return 0;
 186
 187         /*
 188          * FIXME: add blockdev flushing too
 189          */
 190         if (f->mmap)
 191                 ret = madvise(f->mmap, f->io_size, MADV_DONTNEED);
 192         else if (f->filetype == FIO_TYPE_FILE)
 193                 ret = fadvise(f->fd, f->file_offset, f->io_size, POSIX_FADV_DONTNEED);
 194         else if (f->filetype == FIO_TYPE_BD) {
 195                 ret = blockdev_invalidate_cache(f->fd);
 196                 if (ret < 0 && errno == EACCES && geteuid()) {
 197                         if (!root_warn) {
 198                                 log_err("fio: only root may flush block devices. Cache flush bypassed!\n");
 199                                 root_warn = 1;
 200                         }
 201                         ret = 0;
 202                 }
 203         } else if (f->filetype == FIO_TYPE_CHAR || f->filetype == FIO_TYPE_PIPE)
 204                 ret = 0;
 205
 206         if (ret < 0) {
 207                 td_verror(td, errno, "invalidate_cache");
 208                 return 1;
 209         }
 210
 211         return ret;
 212 }
 213
 214 int generic_close_file(struct thread_data fio_unused *td, struct fio_file *f)
 215 {
 216         int ret = 0;
 217
 218         dprint(FD_FILE, "fd close %s\n", f->file_name);
 219
 220         remove_file_hash(f);
 221
 222         if (close(f->fd) < 0)
 223                 ret = errno;
 224
 225         f->fd = -1;
 226         return ret;
 227 }
 228
 229 static int file_lookup_open(struct fio_file *f, int flags)
 230 {
 231         struct fio_file *__f;
 232         int from_hash;
 233
 234         __f = lookup_file_hash(f->file_name);
 235         if (__f) {
 236                 dprint(FD_FILE, "found file in hash %s\n", f->file_name);
 237                 /*
 238                  * racy, need the __f->lock locked
 239                  */
 240                 f->lock = __f->lock;
 241                 f->lock_owner = __f->lock_owner;
 242                 f->lock_batch = __f->lock_batch;
 243                 f->lock_ddir = __f->lock_ddir;
 244                 f->fd = dup(__f->fd);
 245                 f->references++;
 246                 from_hash = 1;
 247         } else {
 248                 dprint(FD_FILE, "file not found in hash %s\n", f->file_name);
 249                 f->fd = open(f->file_name, flags, 0600);
 250                 from_hash = 0;
 251         }
 252
 253         return from_hash;
 254 }
 255
 256 int generic_open_file(struct thread_data *td, struct fio_file *f)
 257 {
 258         int is_std = 0;
 259         int flags = 0;
 260         int from_hash = 0;
 261
 262         dprint(FD_FILE, "fd open %s\n", f->file_name);
 263
 264         if (!strcmp(f->file_name, "-")) {
 265                 if (td_rw(td)) {
 266                         log_err("fio: can't read/write to stdin/out\n");
 267                         return 1;
 268                 }
 269                 is_std = 1;
 270
 271                 /*
 272                  * move output logging to stderr, if we are writing to stdout
 273                  */
 274                 if (td_write(td))
 275                         f_out = stderr;
 276         }
 277
 278         if (td->o.odirect)
 279                 flags |= OS_O_DIRECT;
 280         if (td->o.sync_io)
 281                 flags |= O_SYNC;
 282         if (f->filetype != FIO_TYPE_FILE)
 283                 flags |= O_NOATIME;
 284
 285 open_again:
 286         if (td_write(td)) {
 287                 assert(!read_only);
 288
 289                 flags |= O_RDWR;
 290
 291                 if (f->filetype == FIO_TYPE_FILE)
 292                         flags |= O_CREAT;
 293
 294                 if (is_std)
 295                         f->fd = dup(STDOUT_FILENO);
 296                 else
 297                         from_hash = file_lookup_open(f, flags);
 298         } else {
 299                 if (f->filetype == FIO_TYPE_CHAR && !read_only)
 300                         flags |= O_RDWR;
 301                 else
 302                         flags |= O_RDONLY;
 303
 304                 if (is_std)
 305                         f->fd = dup(STDIN_FILENO);
 306                 else
 307                         from_hash = file_lookup_open(f, flags);
 308         }
 309
 310         if (f->fd == -1) {
 311                 char buf[FIO_VERROR_SIZE];
 312                 int __e = errno;
 313
 314                 if (errno == EPERM && (flags & O_NOATIME)) {
 315                         flags &= ~O_NOATIME;
 316                         goto open_again;
 317                 }
 318
 319                 snprintf(buf, sizeof(buf) - 1, "open(%s)", f->file_name);
 320
 321                 td_verror(td, __e, buf);
 322         }
 323
 324         if (get_file_size(td, f))
 325                 goto err;
 326
 327         if (!from_hash && f->fd != -1) {
 328                 if (add_file_hash(f)) {
 329                         int ret;
 330
 331                         /*
 332                          * OK to ignore, we haven't done anything with it
 333                          */
 334                         ret = generic_close_file(td, f);
 335                         goto open_again;
 336                 }
 337         }
 338
 339         return 0;
 340 err:
 341         close(f->fd);
 342         return 1;
 343 }
 344
 345 int open_files(struct thread_data *td)
 346 {
 347         struct fio_file *f;
 348         unsigned int i;
 349         int err = 0;
 350
 351         dprint(FD_FILE, "open files\n");
 352
 353         for_each_file(td, f, i) {
 354                 err = td_io_open_file(td, f);
 355                 if (err) {
 356                         if (td->error == EMFILE) {
 357                                 log_err("fio: limited open files to: %d\n", td->nr_open_files);
 358                                 td->o.open_files = td->nr_open_files;
 359                                 err = 0;
 360                                 clear_error(td);
 361                         }
 362                         break;
 363                 }
 364
 365                 if (td->o.open_files == td->nr_open_files)
 366                         break;
 367         }
 368
 369         if (!err)
 370                 return 0;
 371
 372         for_each_file(td, f, i)
 373                 td_io_close_file(td, f);
 374
 375         return err;
 376 }
 377
 378 /*
 379  * open/close all files, so that ->real_file_size gets set
 380  */
 381 static int get_file_sizes(struct thread_data *td)
 382 {
 383         struct fio_file *f;
 384         unsigned int i;
 385         int err = 0;
 386
 387         for_each_file(td, f, i) {
 388                 dprint(FD_FILE, "get file size for %p/%d/%p\n", f, i, f->file_name);
 389
 390                 if (td->io_ops->open_file(td, f)) {
 391                         if (td->error != ENOENT) {
 392                                 log_err("%s\n", td->verror);
 393                                 err = 1;
 394                         }
 395                         clear_error(td);
 396                 } else {
 397                         if (td->io_ops->close_file)
 398                                 td->io_ops->close_file(td, f);
 399                 }
 400
 401                 if (f->real_file_size == -1ULL && td->o.size)
 402                         f->real_file_size = td->o.size / td->o.nr_files;
 403         }
 404
 405         return err;
 406 }
 407
 408 /*
 409  * Open the files and setup files sizes, creating files if necessary.
 410  */
 411 int setup_files(struct thread_data *td)
 412 {
 413         unsigned long long total_size, extend_size;
 414         struct fio_file *f;
 415         unsigned int i;
 416         int err = 0, need_extend;
 417
 418         dprint(FD_FILE, "setup files\n");
 419
 420         /*
 421          * if ioengine defines a setup() method, it's responsible for
 422          * opening the files and setting f->real_file_size to indicate
 423          * the valid range for that file.
 424          */
 425         if (td->io_ops->setup)
 426                 err = td->io_ops->setup(td);
 427         else
 428                 err = get_file_sizes(td);
 429
 430         if (err)
 431                 return err;
 432
 433         /*
 434          * check sizes. if the files/devices do not exist and the size
 435          * isn't passed to fio, abort.
 436          */
 437         total_size = 0;
 438         for_each_file(td, f, i) {
 439                 if (f->real_file_size == -1ULL)
 440                         total_size = -1ULL;
 441                 else
 442                         total_size += f->real_file_size;
 443         }
 444
 445         /*
 446          * device/file sizes are zero and no size given, punt
 447          */
 448         if ((!total_size || total_size == -1ULL) && !td->o.size &&
 449             !(td->io_ops->flags & FIO_NOIO) && !td->o.fill_device) {
 450                 log_err("%s: you need to specify size=\n", td->o.name);
 451                 td_verror(td, EINVAL, "total_file_size");
 452                 return 1;
 453         }
 454
 455         /*
 456          * now file sizes are known, so we can set ->io_size. if size= is
 457          * not given, ->io_size is just equal to ->real_file_size. if size
 458          * is given, ->io_size is size / nr_files.
 459          */
 460         extend_size = total_size = 0;
 461         need_extend = 0;
 462         for_each_file(td, f, i) {
 463                 f->file_offset = td->o.start_offset;
 464
 465                 if (!td->o.file_size_low) {
 466                         /*
 467                          * no file size range given, file size is equal to
 468                          * total size divided by number of files. if that is
 469                          * zero, set it to the real file size.
 470                          */
 471                         f->io_size = td->o.size / td->o.nr_files;
 472                         if (!f->io_size)
 473                                 f->io_size = f->real_file_size - f->file_offset;
 474                 } else if (f->real_file_size < td->o.file_size_low ||
 475                            f->real_file_size > td->o.file_size_high) {
 476                         if (f->file_offset > td->o.file_size_low)
 477                                 goto err_offset;
 478                         /*
 479                          * file size given. if it's fixed, use that. if it's a
 480                          * range, generate a random size in-between.
 481                          */
 482                         if (td->o.file_size_low == td->o.file_size_high)
 483                                 f->io_size = td->o.file_size_low - f->file_offset;
 484                         else
 485                                 f->io_size = get_rand_file_size(td) - f->file_offset;
 486                 } else
 487                         f->io_size = f->real_file_size - f->file_offset;
 488
 489                 if (f->io_size == -1ULL)
 490                         total_size = -1ULL;
 491                 else
 492                         total_size += f->io_size;
 493
 494                 if (f->filetype == FIO_TYPE_FILE &&
 495                     (f->io_size + f->file_offset) > f->real_file_size &&
 496                     !(td->io_ops->flags & FIO_DISKLESSIO)) {
 497                         need_extend++;
 498                         extend_size += (f->io_size + f->file_offset);
 499                         f->flags |= FIO_FILE_EXTEND;
 500                 }
 501         }
 502
 503         if (!td->o.size || td->o.size > total_size)
 504                 td->o.size = total_size;
 505
 506         /*
 507          * See if we need to extend some files
 508          */
 509         if (need_extend) {
 510                 temp_stall_ts = 1;
 511                 log_info("%s: Laying out IO file(s) (%u file(s) / %LuMiB)\n",
 512                         td->o.name, need_extend, extend_size >> 20);
 513
 514                 for_each_file(td, f, i) {
 515                         if (!(f->flags & FIO_FILE_EXTEND))
 516                                 continue;
 517
 518                         assert(f->filetype == FIO_TYPE_FILE);
 519                         f->flags &= ~FIO_FILE_EXTEND;
 520                         f->real_file_size = (f->io_size + f->file_offset);
 521                         err = extend_file(td, f);
 522                         if (err)
 523                                 break;
 524                 }
 525                 temp_stall_ts = 0;
 526         }
 527
 528         if (err)
 529                 return err;
 530
 531         if (!td->o.zone_size)
 532                 td->o.zone_size = td->o.size;
 533
 534         /*
 535          * iolog already set the total io size, if we read back
 536          * stored entries.
 537          */
 538         if (!td->o.read_iolog_file)
 539                 td->total_io_size = td->o.size * td->o.loops;
 540         return 0;
 541 err_offset:
 542         log_err("%s: you need to specify valid offset=\n", td->o.name);
 543         return 1;
 544 }
 545
 546 int init_random_map(struct thread_data *td)
 547 {
 548         unsigned long long blocks, num_maps;
 549         struct fio_file *f;
 550         unsigned int i;
 551
 552         if (td->o.norandommap || !td_random(td))
 553                 return 0;
 554
 555         for_each_file(td, f, i) {
 556                 blocks = (f->real_file_size + td->o.rw_min_bs - 1) / (unsigned long long) td->o.rw_min_bs;
 557                 num_maps = (blocks + BLOCKS_PER_MAP-1)/ (unsigned long long) BLOCKS_PER_MAP;
 558                 f->file_map = smalloc(num_maps * sizeof(long));
 559                 if (!f->file_map) {
 560                         log_err("fio: failed allocating random map. If running a large number of jobs, try the 'norandommap' option\n");
 561                         return 1;
 562                 }
 563                 f->num_maps = num_maps;
 564         }
 565
 566         return 0;
 567 }
 568
 569 void close_files(struct thread_data *td)
 570 {
 571         struct fio_file *f;
 572         unsigned int i;
 573
 574         for_each_file(td, f, i)
 575                 td_io_close_file(td, f);
 576 }
 577
 578 void close_and_free_files(struct thread_data *td)
 579 {
 580         struct fio_file *f;
 581         unsigned int i;
 582
 583         dprint(FD_FILE, "close files\n");
 584
 585         for_each_file(td, f, i) {
 586                 if (td->o.unlink && f->filetype == FIO_TYPE_FILE)
 587                         unlink(f->file_name);
 588
 589                 td_io_close_file(td, f);
 590
 591                 sfree(f->file_name);
 592                 f->file_name = NULL;
 593
 594                 if (f->file_map) {
 595                         sfree(f->file_map);
 596                         f->file_map = NULL;
 597                 }
 598                 sfree(f);
 599         }
 600
 601         td->o.filename = NULL;
 602         free(td->files);
 603         td->files_index = 0;
 604         td->files = NULL;
 605         td->o.nr_files = 0;
 606 }
 607
 608 static void get_file_type(struct fio_file *f)
 609 {
 610         struct stat sb;
 611
 612         if (!strcmp(f->file_name, "-"))
 613                 f->filetype = FIO_TYPE_PIPE;
 614         else
 615                 f->filetype = FIO_TYPE_FILE;
 616
 617         if (!lstat(f->file_name, &sb)) {
 618                 if (S_ISBLK(sb.st_mode))
 619                         f->filetype = FIO_TYPE_BD;
 620                 else if (S_ISCHR(sb.st_mode))
 621                         f->filetype = FIO_TYPE_CHAR;
 622                 else if (S_ISFIFO(sb.st_mode))
 623                         f->filetype = FIO_TYPE_PIPE;
 624         }
 625 }
 626
 627 int add_file(struct thread_data *td, const char *fname)
 628 {
 629         int cur_files = td->files_index;
 630         char file_name[PATH_MAX];
 631         struct fio_file *f;
 632         int len = 0;
 633
 634         dprint(FD_FILE, "add file %s\n", fname);
 635
 636         f = smalloc(sizeof(*f));
 637         f->fd = -1;
 638
 639         dprint(FD_FILE, "resize file array to %d files\n", cur_files + 1);
 640
 641         td->files = realloc(td->files, (cur_files + 1) * sizeof(f));
 642         td->files[cur_files] = f;
 643
 644         /*
 645          * init function, io engine may not be loaded yet
 646          */
 647         if (td->io_ops && (td->io_ops->flags & FIO_DISKLESSIO))
 648                 f->real_file_size = -1ULL;
 649
 650         if (td->o.directory)
 651                 len = sprintf(file_name, "%s/", td->o.directory);
 652
 653         sprintf(file_name + len, "%s", fname);
 654         f->file_name = smalloc_strdup(file_name);
 655
 656         get_file_type(f);
 657
 658         switch (td->o.file_lock_mode) {
 659         case FILE_LOCK_NONE:
 660                 break;
 661         case FILE_LOCK_READWRITE:
 662                 f->lock = fio_mutex_rw_init();
 663                 break;
 664         case FILE_LOCK_EXCLUSIVE:
 665                 f->lock = fio_mutex_init(1);
 666                 break;
 667         default:
 668                 log_err("fio: unknown lock mode: %d\n", td->o.file_lock_mode);
 669                 assert(0);
 670         }
 671
 672         td->files_index++;
 673         if (f->filetype == FIO_TYPE_FILE)
 674                 td->nr_normal_files++;
 675
 676         dprint(FD_FILE, "file %p \"%s\" added at %d\n", f, f->file_name, cur_files);
 677
 678         return cur_files;
 679 }
 680
 681 void get_file(struct fio_file *f)
 682 {
 683         dprint(FD_FILE, "get file %s, ref=%d\n", f->file_name, f->references);
 684         assert(f->flags & FIO_FILE_OPEN);
 685         f->references++;
 686 }
 687
 688 int put_file(struct thread_data *td, struct fio_file *f)
 689 {
 690         int ret = 0;
 691
 692         dprint(FD_FILE, "put file %s, ref=%d\n", f->file_name, f->references);
 693
 694         if (!(f->flags & FIO_FILE_OPEN))
 695                 return 0;
 696
 697         assert(f->references);
 698         if (--f->references)
 699                 return 0;
 700
 701         if (should_fsync(td) && td->o.fsync_on_close)
 702                 fsync(f->fd);
 703
 704         if (td->io_ops->close_file)
 705                 ret = td->io_ops->close_file(td, f);
 706
 707         td->nr_open_files--;
 708         f->flags &= ~FIO_FILE_OPEN;
 709         return ret;
 710 }
 711
 712 void lock_file(struct thread_data *td, struct fio_file *f, enum fio_ddir ddir)
 713 {
 714         if (!f->lock || td->o.file_lock_mode == FILE_LOCK_NONE)
 715                 return;
 716
 717         if (f->lock_owner == td && f->lock_batch--)
 718                 return;
 719
 720         if (td->o.file_lock_mode == FILE_LOCK_READWRITE) {
 721                 if (ddir == DDIR_READ)
 722                         fio_mutex_down_read(f->lock);
 723                 else
 724                         fio_mutex_down_write(f->lock);
 725         } else if (td->o.file_lock_mode == FILE_LOCK_EXCLUSIVE)
 726                 fio_mutex_down(f->lock);
 727
 728         f->lock_owner = td;
 729         f->lock_batch = td->o.lockfile_batch;
 730         f->lock_ddir = ddir;
 731 }
 732
 733 void unlock_file(struct thread_data *td, struct fio_file *f)
 734 {
 735         if (!f->lock || td->o.file_lock_mode == FILE_LOCK_NONE)
 736                 return;
 737         if (f->lock_batch)
 738                 return;
 739
 740         if (td->o.file_lock_mode == FILE_LOCK_READWRITE) {
 741                 const int is_read = f->lock_ddir == DDIR_READ;
 742                 int val = fio_mutex_getval(f->lock);
 743
 744                 if ((is_read && val == 1) || (!is_read && val == -1))
 745                         f->lock_owner = NULL;
 746
 747                 if (is_read)
 748                         fio_mutex_up_read(f->lock);
 749                 else
 750                         fio_mutex_up_write(f->lock);
 751         } else if (td->o.file_lock_mode == FILE_LOCK_EXCLUSIVE) {
 752                 int val = fio_mutex_getval(f->lock);
 753
 754                 if (val == 0)
 755                         f->lock_owner = NULL;
 756
 757                 fio_mutex_up(f->lock);
 758         }
 759 }
 760
 761 void unlock_file_all(struct thread_data *td, struct fio_file *f)
 762 {
 763         if (f->lock_owner != td)
 764                 return;
 765
 766         f->lock_batch = 0;
 767         unlock_file(td, f);
 768 }
 769
 770 static int recurse_dir(struct thread_data *td, const char *dirname)
 771 {
 772         struct dirent *dir;
 773         int ret = 0;
 774         DIR *D;
 775
 776         D = opendir(dirname);
 777         if (!D) {
 778                 char buf[FIO_VERROR_SIZE];
 779
 780                 snprintf(buf, FIO_VERROR_SIZE - 1, "opendir(%s)", dirname);
 781                 td_verror(td, errno, buf);
 782                 return 1;
 783         }
 784
 785         while ((dir = readdir(D)) != NULL) {
 786                 char full_path[PATH_MAX];
 787                 struct stat sb;
 788
 789                 if (!strcmp(dir->d_name, ".") || !strcmp(dir->d_name, ".."))
 790                         continue;
 791
 792                 sprintf(full_path, "%s/%s", dirname, dir->d_name);
 793
 794                 if (lstat(full_path, &sb) == -1) {
 795                         if (errno != ENOENT) {
 796                                 td_verror(td, errno, "stat");
 797                                 return 1;
 798                         }
 799                 }
 800
 801                 if (S_ISREG(sb.st_mode)) {
 802                         add_file(td, full_path);
 803                         td->o.nr_files++;
 804                         continue;
 805                 }
 806                 if (!S_ISDIR(sb.st_mode))
 807                         continue;
 808
 809                 if ((ret = recurse_dir(td, full_path)) != 0)
 810                         break;
 811         }
 812
 813         closedir(D);
 814         return ret;
 815 }
 816
 817 int add_dir_files(struct thread_data *td, const char *path)
 818 {
 819         int ret = recurse_dir(td, path);
 820
 821         if (!ret)
 822                 log_info("fio: opendir added %d files\n", td->o.nr_files);
 823
 824         return ret;
 825 }
 826
 827 void dup_files(struct thread_data *td, struct thread_data *org)
 828 {
 829         struct fio_file *f;
 830         unsigned int i;
 831
 832         dprint(FD_FILE, "dup files: %d\n", org->files_index);
 833
 834         if (!org->files)
 835                 return;
 836
 837         td->files = malloc(org->files_index * sizeof(f));
 838
 839         for_each_file(org, f, i) {
 840                 struct fio_file *__f;
 841
 842                 __f = smalloc(sizeof(*__f));
 843
 844                 if (f->file_name)
 845                         __f->file_name = smalloc_strdup(f->file_name);
 846
 847                 td->files[i] = __f;
 848         }
 849 }
 850
 851 /*
 852  * Returns the index that matches the filename, or -1 if not there
 853  */
 854 int get_fileno(struct thread_data *td, const char *fname)
 855 {
 856         struct fio_file *f;
 857         unsigned int i;
 858
 859         for_each_file(td, f, i)
 860                 if (!strcmp(f->file_name, fname))
 861                         return i;
 862
 863         return -1;
 864 }
 865
 866 /*
 867  * For log usage, where we add/open/close files automatically
 868  */
 869 void free_release_files(struct thread_data *td)
 870 {
 871         close_files(td);
 872         td->files_index = 0;
 873         td->nr_normal_files = 0;
 874 }