ltp/fsx.c

   1 /*
   2  *      Copyright (C) 1991, NeXT Computer, Inc.  All Rights Reserverd.
   3  *
   4  *      File:   fsx.c
   5  *      Author: Avadis Tevanian, Jr.
   6  *
   7  *      File system exerciser.
   8  *
   9  *      Rewritten 8/98 by Conrad Minshall.
  10  *
  11  *      Small changes to work under Linux -- davej.
  12  *
  13  *      Checks for mmap last-page zero fill.
  14  */
  15
  16 #include "global.h"
  17
  18 #include <limits.h>
  19 #include <time.h>
  20 #include <strings.h>
  21 #include <sys/file.h>
  22 #include <sys/mman.h>
  23 #ifdef HAVE_ERR_H
  24 #include <err.h>
  25 #endif
  26 #include <signal.h>
  27 #include <stdio.h>
  28 #include <stdlib.h>
  29 #include <string.h>
  30 #include <stdarg.h>
  31 #include <errno.h>
  32 #ifdef AIO
  33 #include <libaio.h>
  34 #endif
  35 #ifdef FALLOCATE
  36 #include <linux/falloc.h>
  37 #endif
  38
  39 #ifndef MAP_FILE
  40 # define MAP_FILE 0
  41 #endif
  42
  43 #define NUMPRINTCOLUMNS 32      /* # columns of data to print on each line */
  44
  45 /*
  46  *      A log entry is an operation and a bunch of arguments.
  47  */
  48
  49 struct log_entry {
  50         int     operation;
  51         int     args[3];
  52 };
  53
  54 #define LOGSIZE 1000
  55
  56 struct log_entry        oplog[LOGSIZE]; /* the log */
  57 int                     logptr = 0;     /* current position in log */
  58 int                     logcount = 0;   /* total ops */
  59
  60 /*
  61  * The operation matrix is complex due to conditional execution of different
  62  * features. Hence when we come to deciding what operation to run, we need to
  63  * be careful in how we select the different operations. The active operations
  64  * are mapped to numbers as follows:
  65  *
  66  *              lite    !lite
  67  * READ:        0       0
  68  * WRITE:       1       1
  69  * MAPREAD:     2       2
  70  * MAPWRITE:    3       3
  71  * TRUNCATE:    -       4
  72  * FALLOCATE:   -       5
  73  * PUNCH HOLE:  -       6
  74  *
  75  * When mapped read/writes are disabled, they are simply converted to normal
  76  * reads and writes. When fallocate/fpunch calls are disabled, they are
  77  * converted to OP_SKIPPED. Hence OP_SKIPPED needs to have a number higher than
  78  * the operation selction matrix, as does the OP_CLOSEOPEN which is an
  79  * operation modifier rather than an operation in itself.
  80  *
  81  * Because of the "lite" version, we also need to have different "maximum
  82  * operation" defines to allow the ops to be selected correctly based on the
  83  * mode being run.
  84  */
  85
  86 /* common operations */
  87 #define OP_READ         0
  88 #define OP_WRITE        1
  89 #define OP_MAPREAD      2
  90 #define OP_MAPWRITE     3
  91 #define OP_MAX_LITE     4
  92
  93 /* !lite operations */
  94 #define OP_TRUNCATE     4
  95 #define OP_FALLOCATE    5
  96 #define OP_PUNCH_HOLE   6
  97 #define OP_MAX_FULL     7
  98
  99 /* operation modifiers */
 100 #define OP_CLOSEOPEN    100
 101 #define OP_SKIPPED      101
 102
 103 #undef PAGE_SIZE
 104 #define PAGE_SIZE       getpagesize()
 105 #undef PAGE_MASK
 106 #define PAGE_MASK       (PAGE_SIZE - 1)
 107
 108 char    *original_buf;                  /* a pointer to the original data */
 109 char    *good_buf;                      /* a pointer to the correct data */
 110 char    *temp_buf;                      /* a pointer to the current data */
 111 char    *fname;                         /* name of our test file */
 112 int     fd;                             /* fd for our test file */
 113
 114 off_t           file_size = 0;
 115 off_t           biggest = 0;
 116 char            state[256];
 117 unsigned long   testcalls = 0;          /* calls to function "test" */
 118
 119 unsigned long   simulatedopcount = 0;   /* -b flag */
 120 int     closeprob = 0;                  /* -c flag */
 121 int     debug = 0;                      /* -d flag */
 122 unsigned long   debugstart = 0;         /* -D flag */
 123 int     flush = 0;                      /* -f flag */
 124 int     do_fsync = 0;                   /* -y flag */
 125 unsigned long   maxfilelen = 256 * 1024;        /* -l flag */
 126 int     sizechecks = 1;                 /* -n flag disables them */
 127 int     maxoplen = 64 * 1024;           /* -o flag */
 128 int     quiet = 0;                      /* -q flag */
 129 unsigned long progressinterval = 0;     /* -p flag */
 130 int     readbdy = 1;                    /* -r flag */
 131 int     style = 0;                      /* -s flag */
 132 int     prealloc = 0;                   /* -x flag */
 133 int     truncbdy = 1;                   /* -t flag */
 134 int     writebdy = 1;                   /* -w flag */
 135 long    monitorstart = -1;              /* -m flag */
 136 long    monitorend = -1;                /* -m flag */
 137 int     lite = 0;                       /* -L flag */
 138 long    numops = -1;                    /* -N flag */
 139 int     randomoplen = 1;                /* -O flag disables it */
 140 int     seed = 1;                       /* -S flag */
 141 int     mapped_writes = 1;              /* -W flag disables */
 142 int     fallocate_calls = 1;            /* -F flag disables */
 143 int     punch_hole_calls = 1;           /* -H flag disables */
 144 int     mapped_reads = 1;               /* -R flag disables it */
 145 int     fsxgoodfd = 0;
 146 int     o_direct;                       /* -Z */
 147 int     aio = 0;
 148
 149 int page_size;
 150 int page_mask;
 151 int mmap_mask;
 152 #ifdef AIO
 153 int aio_rw(int rw, int fd, char *buf, unsigned len, unsigned offset);
 154 #define READ 0
 155 #define WRITE 1
 156 #define fsxread(a,b,c,d)        aio_rw(READ, a,b,c,d)
 157 #define fsxwrite(a,b,c,d)       aio_rw(WRITE, a,b,c,d)
 158 #else
 159 #define fsxread(a,b,c,d)        read(a,b,c)
 160 #define fsxwrite(a,b,c,d)       write(a,b,c)
 161 #endif
 162
 163 FILE *  fsxlogf = NULL;
 164 int badoff = -1;
 165 int closeopen = 0;
 166
 167 static void *round_up(void *ptr, unsigned long align, unsigned long offset)
 168 {
 169         unsigned long ret = (unsigned long)ptr;
 170
 171         ret = ((ret + align - 1) & ~(align - 1));
 172         ret += offset;
 173         return (void *)ret;
 174 }
 175
 176 void
 177 vwarnc(int code, const char *fmt, va_list ap) {
 178   fprintf(stderr, "fsx: ");
 179   if (fmt != NULL) {
 180         vfprintf(stderr, fmt, ap);
 181         fprintf(stderr, ": ");
 182   }
 183   fprintf(stderr, "%s\n", strerror(code));
 184 }
 185
 186 void
 187 warn(const char * fmt, ...)  {
 188         va_list ap;
 189         va_start(ap, fmt);
 190         vwarnc(errno, fmt, ap);
 191         va_end(ap);
 192 }
 193
 194 #define BUF_SIZE 1024
 195
 196 void
 197 prt(char *fmt, ...)
 198 {
 199         va_list args;
 200         char buffer[BUF_SIZE];
 201
 202         va_start(args, fmt);
 203         vsnprintf(buffer, BUF_SIZE, fmt, args);
 204         va_end(args);
 205         fprintf(stdout, buffer);
 206         if (fsxlogf)
 207                 fprintf(fsxlogf, buffer);
 208 }
 209
 210 void
 211 prterr(char *prefix)
 212 {
 213         prt("%s%s%s\n", prefix, prefix ? ": " : "", strerror(errno));
 214 }
 215
 216
 217 void
 218 log4(int operation, int arg0, int arg1, int arg2)
 219 {
 220         struct log_entry *le;
 221
 222         le = &oplog[logptr];
 223         le->operation = operation;
 224         if (closeopen)
 225                 le->operation = ~ le->operation;
 226         le->args[0] = arg0;
 227         le->args[1] = arg1;
 228         le->args[2] = arg2;
 229         logptr++;
 230         logcount++;
 231         if (logptr >= LOGSIZE)
 232                 logptr = 0;
 233 }
 234
 235
 236 void
 237 logdump(void)
 238 {
 239         int     i, count, down;
 240         struct log_entry        *lp;
 241         char *falloc_type[3] = {"PAST_EOF", "EXTENDING", "INTERIOR"};
 242
 243         prt("LOG DUMP (%d total operations):\n", logcount);
 244         if (logcount < LOGSIZE) {
 245                 i = 0;
 246                 count = logcount;
 247         } else {
 248                 i = logptr;
 249                 count = LOGSIZE;
 250         }
 251         for ( ; count > 0; count--) {
 252                 int opnum;
 253
 254                 opnum = i+1 + (logcount/LOGSIZE)*LOGSIZE;
 255                 prt("%d(%d mod 256): ", opnum, opnum%256);
 256                 lp = &oplog[i];
 257                 if ((closeopen = lp->operation < 0))
 258                         lp->operation = ~ lp->operation;
 259
 260                 switch (lp->operation) {
 261                 case OP_MAPREAD:
 262                         prt("MAPREAD\t0x%x thru 0x%x\t(0x%x bytes)",
 263                             lp->args[0], lp->args[0] + lp->args[1] - 1,
 264                             lp->args[1]);
 265                         if (badoff >= lp->args[0] && badoff <
 266                                                      lp->args[0] + lp->args[1])
 267                                 prt("\t***RRRR***");
 268                         break;
 269                 case OP_MAPWRITE:
 270                         prt("MAPWRITE 0x%x thru 0x%x\t(0x%x bytes)",
 271                             lp->args[0], lp->args[0] + lp->args[1] - 1,
 272                             lp->args[1]);
 273                         if (badoff >= lp->args[0] && badoff <
 274                                                      lp->args[0] + lp->args[1])
 275                                 prt("\t******WWWW");
 276                         break;
 277                 case OP_READ:
 278                         prt("READ\t0x%x thru 0x%x\t(0x%x bytes)",
 279                             lp->args[0], lp->args[0] + lp->args[1] - 1,
 280                             lp->args[1]);
 281                         if (badoff >= lp->args[0] &&
 282                             badoff < lp->args[0] + lp->args[1])
 283                                 prt("\t***RRRR***");
 284                         break;
 285                 case OP_WRITE:
 286                         prt("WRITE\t0x%x thru 0x%x\t(0x%x bytes)",
 287                             lp->args[0], lp->args[0] + lp->args[1] - 1,
 288                             lp->args[1]);
 289                         if (lp->args[0] > lp->args[2])
 290                                 prt(" HOLE");
 291                         else if (lp->args[0] + lp->args[1] > lp->args[2])
 292                                 prt(" EXTEND");
 293                         if ((badoff >= lp->args[0] || badoff >=lp->args[2]) &&
 294                             badoff < lp->args[0] + lp->args[1])
 295                                 prt("\t***WWWW");
 296                         break;
 297                 case OP_TRUNCATE:
 298                         down = lp->args[0] < lp->args[1];
 299                         prt("TRUNCATE %s\tfrom 0x%x to 0x%x",
 300                             down ? "DOWN" : "UP", lp->args[1], lp->args[0]);
 301                         if (badoff >= lp->args[!down] &&
 302                             badoff < lp->args[!!down])
 303                                 prt("\t******WWWW");
 304                         break;
 305                 case OP_FALLOCATE:
 306                         /* 0: offset 1: length 2: where alloced */
 307                         prt("FALLOCATE %s\tfrom 0x%x to 0x%x",
 308                             falloc_type[lp->args[2]], lp->args[0], lp->args[0] + lp->args[1]);
 309                         if (badoff >= lp->args[0] &&
 310                             badoff < lp->args[0] + lp->args[1])
 311                                 prt("\t******FFFF");
 312                         break;
 313                 case OP_PUNCH_HOLE:
 314                         prt("PUNCH HOLE\t0x%x thru 0x%x\t(0x%x bytes)",
 315                             lp->args[0], lp->args[0] + lp->args[1] - 1,
 316                             lp->args[1]);
 317                         if (badoff >= lp->args[0] && badoff <
 318                                                      lp->args[0] + lp->args[1])
 319                                 prt("\t******PPPP");
 320                         break;
 321                 case OP_SKIPPED:
 322                         prt("SKIPPED (no operation)");
 323                         break;
 324                 default:
 325                         prt("BOGUS LOG ENTRY (operation code = %d)!",
 326                             lp->operation);
 327                 }
 328                 if (closeopen)
 329                         prt("\n\t\tCLOSE/OPEN");
 330                 prt("\n");
 331                 i++;
 332                 if (i == LOGSIZE)
 333                         i = 0;
 334         }
 335 }
 336
 337
 338 void
 339 save_buffer(char *buffer, off_t bufferlength, int fd)
 340 {
 341         off_t ret;
 342         ssize_t byteswritten;
 343
 344         if (fd <= 0 || bufferlength == 0)
 345                 return;
 346
 347         if (bufferlength > SSIZE_MAX) {
 348                 prt("fsx flaw: overflow in save_buffer\n");
 349                 exit(67);
 350         }
 351         if (lite) {
 352                 off_t size_by_seek = lseek(fd, (off_t)0, SEEK_END);
 353                 if (size_by_seek == (off_t)-1)
 354                         prterr("save_buffer: lseek eof");
 355                 else if (bufferlength > size_by_seek) {
 356                         warn("save_buffer: .fsxgood file too short... will save 0x%llx bytes instead of 0x%llx\n", (unsigned long long)size_by_seek,
 357                              (unsigned long long)bufferlength);
 358                         bufferlength = size_by_seek;
 359                 }
 360         }
 361
 362         ret = lseek(fd, (off_t)0, SEEK_SET);
 363         if (ret == (off_t)-1)
 364                 prterr("save_buffer: lseek 0");
 365
 366         byteswritten = write(fd, buffer, (size_t)bufferlength);
 367         if (byteswritten != bufferlength) {
 368                 if (byteswritten == -1)
 369                         prterr("save_buffer write");
 370                 else
 371                         warn("save_buffer: short write, 0x%x bytes instead of 0x%llx\n",
 372                              (unsigned)byteswritten,
 373                              (unsigned long long)bufferlength);
 374         }
 375 }
 376
 377
 378 void
 379 report_failure(int status)
 380 {
 381         logdump();
 382
 383         if (fsxgoodfd) {
 384                 if (good_buf) {
 385                         save_buffer(good_buf, file_size, fsxgoodfd);
 386                         prt("Correct content saved for comparison\n");
 387                         prt("(maybe hexdump \"%s\" vs \"%s.fsxgood\")\n",
 388                             fname, fname);
 389                 }
 390                 close(fsxgoodfd);
 391         }
 392         exit(status);
 393 }
 394
 395
 396 #define short_at(cp) ((unsigned short)((*((unsigned char *)(cp)) << 8) | \
 397                                         *(((unsigned char *)(cp)) + 1)))
 398
 399 void
 400 check_buffers(unsigned offset, unsigned size)
 401 {
 402         unsigned char c, t;
 403         unsigned i = 0;
 404         unsigned n = 0;
 405         unsigned op = 0;
 406         unsigned bad = 0;
 407
 408         if (memcmp(good_buf + offset, temp_buf, size) != 0) {
 409                 prt("READ BAD DATA: offset = 0x%x, size = 0x%x, fname = %s\n",
 410                     offset, size, fname);
 411                 prt("OFFSET\tGOOD\tBAD\tRANGE\n");
 412                 while (size > 0) {
 413                         c = good_buf[offset];
 414                         t = temp_buf[i];
 415                         if (c != t) {
 416                                 if (n < 16) {
 417                                         bad = short_at(&temp_buf[i]);
 418                                         prt("0x%5x\t0x%04x\t0x%04x", offset,
 419                                             short_at(&good_buf[offset]), bad);
 420                                         op = temp_buf[offset & 1 ? i+1 : i];
 421                                         prt("\t0x%5x\n", n);
 422                                         if (op)
 423                                                 prt("operation# (mod 256) for "
 424                                                   "the bad data may be %u\n",
 425                                                 ((unsigned)op & 0xff));
 426                                         else
 427                                                 prt("operation# (mod 256) for "
 428                                                   "the bad data unknown, check"
 429                                                   " HOLE and EXTEND ops\n");
 430                                 }
 431                                 n++;
 432                                 badoff = offset;
 433                         }
 434                         offset++;
 435                         i++;
 436                         size--;
 437                 }
 438                 report_failure(110);
 439         }
 440 }
 441
 442
 443 void
 444 check_size(void)
 445 {
 446         struct stat     statbuf;
 447         off_t   size_by_seek;
 448
 449         if (fstat(fd, &statbuf)) {
 450                 prterr("check_size: fstat");
 451                 statbuf.st_size = -1;
 452         }
 453         size_by_seek = lseek(fd, (off_t)0, SEEK_END);
 454         if (file_size != statbuf.st_size || file_size != size_by_seek) {
 455                 prt("Size error: expected 0x%llx stat 0x%llx seek 0x%llx\n",
 456                     (unsigned long long)file_size,
 457                     (unsigned long long)statbuf.st_size,
 458                     (unsigned long long)size_by_seek);
 459                 report_failure(120);
 460         }
 461 }
 462
 463
 464 void
 465 check_trunc_hack(void)
 466 {
 467         struct stat statbuf;
 468
 469         ftruncate(fd, (off_t)0);
 470         ftruncate(fd, (off_t)100000);
 471         fstat(fd, &statbuf);
 472         if (statbuf.st_size != (off_t)100000) {
 473                 prt("no extend on truncate! not posix!\n");
 474                 exit(130);
 475         }
 476         ftruncate(fd, 0);
 477 }
 478
 479 void
 480 doflush(unsigned offset, unsigned size)
 481 {
 482         unsigned pg_offset;
 483         unsigned map_size;
 484         char    *p;
 485
 486         if (o_direct == O_DIRECT)
 487                 return;
 488
 489         pg_offset = offset & mmap_mask;
 490         map_size  = pg_offset + size;
 491
 492         if ((p = (char *)mmap(0, map_size, PROT_READ | PROT_WRITE,
 493                               MAP_FILE | MAP_SHARED, fd,
 494                               (off_t)(offset - pg_offset))) == (char *)-1) {
 495                 prterr("doflush: mmap");
 496                 report_failure(202);
 497         }
 498         if (msync(p, map_size, MS_INVALIDATE) != 0) {
 499                 prterr("doflush: msync");
 500                 report_failure(203);
 501         }
 502         if (munmap(p, map_size) != 0) {
 503                 prterr("doflush: munmap");
 504                 report_failure(204);
 505         }
 506 }
 507
 508 void
 509 doread(unsigned offset, unsigned size)
 510 {
 511         off_t ret;
 512         unsigned iret;
 513
 514         offset -= offset % readbdy;
 515         if (o_direct)
 516                 size -= size % readbdy;
 517         if (size == 0) {
 518                 if (!quiet && testcalls > simulatedopcount && !o_direct)
 519                         prt("skipping zero size read\n");
 520                 log4(OP_SKIPPED, OP_READ, offset, size);
 521                 return;
 522         }
 523         if (size + offset > file_size) {
 524                 if (!quiet && testcalls > simulatedopcount)
 525                         prt("skipping seek/read past end of file\n");
 526                 log4(OP_SKIPPED, OP_READ, offset, size);
 527                 return;
 528         }
 529
 530         log4(OP_READ, offset, size, 0);
 531
 532         if (testcalls <= simulatedopcount)
 533                 return;
 534
 535         if (!quiet &&
 536                 ((progressinterval && testcalls % progressinterval == 0)  ||
 537                 (debug &&
 538                        (monitorstart == -1 ||
 539                         (offset + size > monitorstart &&
 540                         (monitorend == -1 || offset <= monitorend))))))
 541                 prt("%lu read\t0x%x thru\t0x%x\t(0x%x bytes)\n", testcalls,
 542                     offset, offset + size - 1, size);
 543         ret = lseek(fd, (off_t)offset, SEEK_SET);
 544         if (ret == (off_t)-1) {
 545                 prterr("doread: lseek");
 546                 report_failure(140);
 547         }
 548         iret = fsxread(fd, temp_buf, size, offset);
 549         if (iret != size) {
 550                 if (iret == -1)
 551                         prterr("doread: read");
 552                 else
 553                         prt("short read: 0x%x bytes instead of 0x%x\n",
 554                             iret, size);
 555                 report_failure(141);
 556         }
 557         check_buffers(offset, size);
 558 }
 559
 560
 561 void
 562 check_eofpage(char *s, unsigned offset, char *p, int size)
 563 {
 564         unsigned long last_page, should_be_zero;
 565
 566         if (offset + size <= (file_size & ~page_mask))
 567                 return;
 568         /*
 569          * we landed in the last page of the file
 570          * test to make sure the VM system provided 0's
 571          * beyond the true end of the file mapping
 572          * (as required by mmap def in 1996 posix 1003.1)
 573          */
 574         last_page = ((unsigned long)p + (offset & page_mask) + size) & ~page_mask;
 575
 576         for (should_be_zero = last_page + (file_size & page_mask);
 577              should_be_zero < last_page + page_size;
 578              should_be_zero++)
 579                 if (*(char *)should_be_zero) {
 580                         prt("Mapped %s: non-zero data past EOF (0x%llx) page offset 0x%x is 0x%04x\n",
 581                             s, file_size - 1, should_be_zero & page_mask,
 582                             short_at(should_be_zero));
 583                         report_failure(205);
 584                 }
 585 }
 586
 587
 588 void
 589 domapread(unsigned offset, unsigned size)
 590 {
 591         unsigned pg_offset;
 592         unsigned map_size;
 593         char    *p;
 594
 595         offset -= offset % readbdy;
 596         if (size == 0) {
 597                 if (!quiet && testcalls > simulatedopcount)
 598                         prt("skipping zero size read\n");
 599                 log4(OP_SKIPPED, OP_MAPREAD, offset, size);
 600                 return;
 601         }
 602         if (size + offset > file_size) {
 603                 if (!quiet && testcalls > simulatedopcount)
 604                         prt("skipping seek/read past end of file\n");
 605                 log4(OP_SKIPPED, OP_MAPREAD, offset, size);
 606                 return;
 607         }
 608
 609         log4(OP_MAPREAD, offset, size, 0);
 610
 611         if (testcalls <= simulatedopcount)
 612                 return;
 613
 614         if (!quiet &&
 615                 ((progressinterval && testcalls % progressinterval == 0) ||
 616                        (debug &&
 617                        (monitorstart == -1 ||
 618                         (offset + size > monitorstart &&
 619                         (monitorend == -1 || offset <= monitorend))))))
 620                 prt("%lu mapread\t0x%x thru\t0x%x\t(0x%x bytes)\n", testcalls,
 621                     offset, offset + size - 1, size);
 622
 623         pg_offset = offset & PAGE_MASK;
 624         map_size  = pg_offset + size;
 625
 626         if ((p = (char *)mmap(0, map_size, PROT_READ, MAP_SHARED, fd,
 627                               (off_t)(offset - pg_offset))) == (char *)-1) {
 628                 prterr("domapread: mmap");
 629                 report_failure(190);
 630         }
 631         memcpy(temp_buf, p + pg_offset, size);
 632
 633         check_eofpage("Read", offset, p, size);
 634
 635         if (munmap(p, map_size) != 0) {
 636                 prterr("domapread: munmap");
 637                 report_failure(191);
 638         }
 639
 640         check_buffers(offset, size);
 641 }
 642
 643
 644 void
 645 gendata(char *original_buf, char *good_buf, unsigned offset, unsigned size)
 646 {
 647         while (size--) {
 648                 good_buf[offset] = testcalls % 256;
 649                 if (offset % 2)
 650                         good_buf[offset] += original_buf[offset];
 651                 offset++;
 652         }
 653 }
 654
 655
 656 void
 657 dowrite(unsigned offset, unsigned size)
 658 {
 659         off_t ret;
 660         unsigned iret;
 661
 662         offset -= offset % writebdy;
 663         if (o_direct)
 664                 size -= size % writebdy;
 665         if (size == 0) {
 666                 if (!quiet && testcalls > simulatedopcount && !o_direct)
 667                         prt("skipping zero size write\n");
 668                 log4(OP_SKIPPED, OP_WRITE, offset, size);
 669                 return;
 670         }
 671
 672         log4(OP_WRITE, offset, size, file_size);
 673
 674         gendata(original_buf, good_buf, offset, size);
 675         if (file_size < offset + size) {
 676                 if (file_size < offset)
 677                         memset(good_buf + file_size, '\0', offset - file_size);
 678                 file_size = offset + size;
 679                 if (lite) {
 680                         warn("Lite file size bug in fsx!");
 681                         report_failure(149);
 682                 }
 683         }
 684
 685         if (testcalls <= simulatedopcount)
 686                 return;
 687
 688         if (!quiet &&
 689                 ((progressinterval && testcalls % progressinterval == 0) ||
 690                        (debug &&
 691                        (monitorstart == -1 ||
 692                         (offset + size > monitorstart &&
 693                         (monitorend == -1 || offset <= monitorend))))))
 694                 prt("%lu write\t0x%x thru\t0x%x\t(0x%x bytes)\n", testcalls,
 695                     offset, offset + size - 1, size);
 696         ret = lseek(fd, (off_t)offset, SEEK_SET);
 697         if (ret == (off_t)-1) {
 698                 prterr("dowrite: lseek");
 699                 report_failure(150);
 700         }
 701         iret = fsxwrite(fd, good_buf + offset, size, offset);
 702         if (iret != size) {
 703                 if (iret == -1)
 704                         prterr("dowrite: write");
 705                 else
 706                         prt("short write: 0x%x bytes instead of 0x%x\n",
 707                             iret, size);
 708                 report_failure(151);
 709         }
 710         if (do_fsync) {
 711                 if (fsync(fd)) {
 712                         prt("fsync() failed: %s\n", strerror(errno));
 713                         report_failure(152);
 714                 }
 715         }
 716         if (flush) {
 717                 doflush(offset, size);
 718         }
 719 }
 720
 721
 722 void
 723 domapwrite(unsigned offset, unsigned size)
 724 {
 725         unsigned pg_offset;
 726         unsigned map_size;
 727         off_t    cur_filesize;
 728         char    *p;
 729
 730         offset -= offset % writebdy;
 731         if (size == 0) {
 732                 if (!quiet && testcalls > simulatedopcount)
 733                         prt("skipping zero size write\n");
 734                 log4(OP_SKIPPED, OP_MAPWRITE, offset, size);
 735                 return;
 736         }
 737         cur_filesize = file_size;
 738
 739         log4(OP_MAPWRITE, offset, size, 0);
 740
 741         gendata(original_buf, good_buf, offset, size);
 742         if (file_size < offset + size) {
 743                 if (file_size < offset)
 744                         memset(good_buf + file_size, '\0', offset - file_size);
 745                 file_size = offset + size;
 746                 if (lite) {
 747                         warn("Lite file size bug in fsx!");
 748                         report_failure(200);
 749                 }
 750         }
 751
 752         if (testcalls <= simulatedopcount)
 753                 return;
 754
 755         if (!quiet &&
 756                 ((progressinterval && testcalls % progressinterval == 0) ||
 757                        (debug &&
 758                        (monitorstart == -1 ||
 759                         (offset + size > monitorstart &&
 760                         (monitorend == -1 || offset <= monitorend))))))
 761                 prt("%lu mapwrite\t0x%x thru\t0x%x\t(0x%x bytes)\n", testcalls,
 762                     offset, offset + size - 1, size);
 763
 764         if (file_size > cur_filesize) {
 765                 if (ftruncate(fd, file_size) == -1) {
 766                         prterr("domapwrite: ftruncate");
 767                         exit(201);
 768                 }
 769         }
 770         pg_offset = offset & PAGE_MASK;
 771         map_size  = pg_offset + size;
 772
 773         if ((p = (char *)mmap(0, map_size, PROT_READ | PROT_WRITE,
 774                               MAP_FILE | MAP_SHARED, fd,
 775                               (off_t)(offset - pg_offset))) == (char *)-1) {
 776                 prterr("domapwrite: mmap");
 777                 report_failure(202);
 778         }
 779         memcpy(p + pg_offset, good_buf + offset, size);
 780         if (msync(p, map_size, 0) != 0) {
 781                 prterr("domapwrite: msync");
 782                 report_failure(203);
 783         }
 784
 785         check_eofpage("Write", offset, p, size);
 786
 787         if (munmap(p, map_size) != 0) {
 788                 prterr("domapwrite: munmap");
 789                 report_failure(204);
 790         }
 791 }
 792
 793
 794 void
 795 dotruncate(unsigned size)
 796 {
 797         int oldsize = file_size;
 798
 799         size -= size % truncbdy;
 800         if (size > biggest) {
 801                 biggest = size;
 802                 if (!quiet && testcalls > simulatedopcount)
 803                         prt("truncating to largest ever: 0x%x\n", size);
 804         }
 805
 806         log4(OP_TRUNCATE, size, (unsigned)file_size, 0);
 807
 808         if (size > file_size)
 809                 memset(good_buf + file_size, '\0', size - file_size);
 810         file_size = size;
 811
 812         if (testcalls <= simulatedopcount)
 813                 return;
 814
 815         if ((progressinterval && testcalls % progressinterval == 0) ||
 816             (debug && (monitorstart == -1 || monitorend == -1 ||
 817                       size <= monitorend)))
 818                 prt("%lu trunc\tfrom 0x%x to 0x%x\n", testcalls, oldsize, size);
 819         if (ftruncate(fd, (off_t)size) == -1) {
 820                 prt("ftruncate1: %x\n", size);
 821                 prterr("dotruncate: ftruncate");
 822                 report_failure(160);
 823         }
 824 }
 825
 826 #ifdef FALLOC_FL_PUNCH_HOLE
 827 void
 828 do_punch_hole(unsigned offset, unsigned length)
 829 {
 830         unsigned end_offset;
 831         int max_offset = 0;
 832         int max_len = 0;
 833         int mode = FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE;
 834
 835         if (length == 0) {
 836                 if (!quiet && testcalls > simulatedopcount)
 837                         prt("skipping zero length punch hole\n");
 838                         log4(OP_SKIPPED, OP_PUNCH_HOLE, offset, length);
 839                 return;
 840         }
 841
 842         if (file_size <= (loff_t)offset) {
 843                 if (!quiet && testcalls > simulatedopcount)
 844                         prt("skipping hole punch off the end of the file\n");
 845                         log4(OP_SKIPPED, OP_PUNCH_HOLE, offset, length);
 846                 return;
 847         }
 848
 849         end_offset = offset + length;
 850
 851         log4(OP_PUNCH_HOLE, offset, length, 0);
 852
 853         if (testcalls <= simulatedopcount)
 854                 return;
 855
 856         if ((progressinterval && testcalls % progressinterval == 0) ||
 857             (debug && (monitorstart == -1 || monitorend == -1 ||
 858                       end_offset <= monitorend))) {
 859                 prt("%lu punch\tfrom 0x%x to 0x%x, (0x%x bytes)\n", testcalls,
 860                         offset, offset+length, length);
 861         }
 862         if (fallocate(fd, mode, (loff_t)offset, (loff_t)length) == -1) {
 863                 prt("%punch hole: %x to %x\n", offset, length);
 864                 prterr("do_punch_hole: fallocate");
 865                 report_failure(161);
 866         }
 867
 868
 869         max_offset = offset < file_size ? offset : file_size;
 870         max_len = max_offset + length <= file_size ? length :
 871                         file_size - max_offset;
 872         memset(good_buf + max_offset, '\0', max_len);
 873 }
 874
 875 #else
 876 void
 877 do_punch_hole(unsigned offset, unsigned length)
 878 {
 879         return;
 880 }
 881 #endif
 882
 883 #ifdef FALLOCATE
 884 /* fallocate is basically a no-op unless extending, then a lot like a truncate */
 885 void
 886 do_preallocate(unsigned offset, unsigned length)
 887 {
 888         unsigned end_offset;
 889         int keep_size;
 890
 891         if (length == 0) {
 892                 if (!quiet && testcalls > simulatedopcount)
 893                         prt("skipping zero length fallocate\n");
 894                 log4(OP_SKIPPED, OP_FALLOCATE, offset, length);
 895                 return;
 896         }
 897
 898         keep_size = random() % 2;
 899
 900         end_offset = keep_size ? 0 : offset + length;
 901
 902         if (end_offset > biggest) {
 903                 biggest = end_offset;
 904                 if (!quiet && testcalls > simulatedopcount)
 905                         prt("fallocating to largest ever: 0x%x\n", end_offset);
 906         }
 907
 908         /*
 909          * last arg:
 910          *      1: allocate past EOF
 911          *      2: extending prealloc
 912          *      3: interior prealloc
 913          */
 914         log4(OP_FALLOCATE, offset, length, (end_offset > file_size) ? (keep_size ? 1 : 2) : 3);
 915
 916         if (end_offset > file_size) {
 917                 memset(good_buf + file_size, '\0', end_offset - file_size);
 918                 file_size = end_offset;
 919         }
 920
 921         if (testcalls <= simulatedopcount)
 922                 return;
 923
 924         if ((progressinterval && testcalls % progressinterval == 0) ||
 925             (debug && (monitorstart == -1 || monitorend == -1 ||
 926                       end_offset <= monitorend)))
 927                 prt("%lu falloc\tfrom 0x%x to 0x%x\n", testcalls, offset, length);
 928         if (fallocate(fd, keep_size ? FALLOC_FL_KEEP_SIZE : 0, (loff_t)offset, (loff_t)length) == -1) {
 929                 prt("fallocate: %x to %x\n", offset, length);
 930                 prterr("do_preallocate: fallocate");
 931                 report_failure(161);
 932         }
 933 }
 934 #else
 935 void
 936 do_preallocate(unsigned offset, unsigned length)
 937 {
 938         return;
 939 }
 940 #endif
 941
 942 void
 943 writefileimage()
 944 {
 945         ssize_t iret;
 946
 947         if (lseek(fd, (off_t)0, SEEK_SET) == (off_t)-1) {
 948                 prterr("writefileimage: lseek");
 949                 report_failure(171);
 950         }
 951         iret = write(fd, good_buf, file_size);
 952         if ((off_t)iret != file_size) {
 953                 if (iret == -1)
 954                         prterr("writefileimage: write");
 955                 else
 956                         prt("short write: 0x%x bytes instead of 0x%llx\n",
 957                             iret, (unsigned long long)file_size);
 958                 report_failure(172);
 959         }
 960         if (lite ? 0 : ftruncate(fd, file_size) == -1) {
 961                 prt("ftruncate2: %llx\n", (unsigned long long)file_size);
 962                 prterr("writefileimage: ftruncate");
 963                 report_failure(173);
 964         }
 965 }
 966
 967
 968 void
 969 docloseopen(void)
 970 {
 971         if (testcalls <= simulatedopcount)
 972                 return;
 973
 974         if (debug)
 975                 prt("%lu close/open\n", testcalls);
 976         if (close(fd)) {
 977                 prterr("docloseopen: close");
 978                 report_failure(180);
 979         }
 980         fd = open(fname, O_RDWR|o_direct, 0);
 981         if (fd < 0) {
 982                 prterr("docloseopen: open");
 983                 report_failure(181);
 984         }
 985 }
 986
 987 #define TRIM_OFF_LEN(off, len, size, zero_offset)       \
 988 do {                                    \
 989         if (!zero_offset || file_size)  \
 990                 offset %= size;         \
 991         else                            \
 992                 offset = 0;             \
 993         if (offset + len > size)        \
 994                 len = size - offset;    \
 995 } while (0)
 996
 997 void
 998 test(void)
 999 {
1000         unsigned long   offset;
1001         unsigned long   size = maxoplen;
1002         unsigned long   rv = random();
1003         unsigned long   op;
1004
1005         if (simulatedopcount > 0 && testcalls == simulatedopcount)
1006                 writefileimage();
1007
1008         testcalls++;
1009
1010         if (closeprob)
1011                 closeopen = (rv >> 3) < (1 << 28) / closeprob;
1012
1013         if (debugstart > 0 && testcalls >= debugstart)
1014                 debug = 1;
1015
1016         if (!quiet && testcalls < simulatedopcount && testcalls % 100000 == 0)
1017                 prt("%lu...\n", testcalls);
1018
1019         offset = random();
1020         if (randomoplen)
1021                 size = random() % (maxoplen + 1);
1022
1023         /* calculate appropriate op to run */
1024         if (lite)
1025                 op = rv % OP_MAX_LITE;
1026         else
1027                 op = rv % OP_MAX_FULL;
1028
1029         switch (op) {
1030         case OP_MAPREAD:
1031                 if (!mapped_reads)
1032                         op = OP_READ;
1033                 break;
1034         case OP_MAPWRITE:
1035                 if (!mapped_writes)
1036                         op = OP_WRITE;
1037                 break;
1038         case OP_FALLOCATE:
1039                 if (!fallocate_calls) {
1040                         log4(OP_SKIPPED, OP_FALLOCATE, offset, size);
1041                         goto out;
1042                 }
1043                 break;
1044         case OP_PUNCH_HOLE:
1045                 if (!punch_hole_calls) {
1046                         log4(OP_SKIPPED, OP_PUNCH_HOLE, offset, size);
1047                         goto out;
1048                 }
1049                 break;
1050         }
1051
1052         switch (op) {
1053         case OP_READ:
1054                 TRIM_OFF_LEN(offset, size, file_size, false);
1055                 doread(offset, size);
1056                 break;
1057
1058         case OP_WRITE:
1059                 TRIM_OFF_LEN(offset, size, maxfilelen, true);
1060                 dowrite(offset, size);
1061                 break;
1062
1063         case OP_MAPREAD:
1064                 TRIM_OFF_LEN(offset, size, file_size, false);
1065                 domapread(offset, size);
1066                 break;
1067
1068         case OP_MAPWRITE:
1069                 TRIM_OFF_LEN(offset, size, maxfilelen, true);
1070                 domapwrite(offset, size);
1071                 break;
1072
1073         case OP_TRUNCATE:
1074                 if (!style)
1075                         size = random() % maxfilelen;
1076                 dotruncate(size);
1077                 break;
1078
1079         case OP_FALLOCATE:
1080                 TRIM_OFF_LEN(offset, size, maxfilelen, true);
1081                 do_preallocate(offset, size);
1082                 break;
1083
1084         case OP_PUNCH_HOLE:
1085                 TRIM_OFF_LEN(offset, size, maxfilelen, true);
1086                 do_punch_hole(offset, size);
1087                 break;
1088         default:
1089                 prterr("test: unknown operation");
1090                 report_failure(42);
1091                 break;
1092         }
1093
1094 out:
1095         if (sizechecks && testcalls > simulatedopcount)
1096                 check_size();
1097         if (closeopen)
1098                 docloseopen();
1099 }
1100
1101
1102 void
1103 cleanup(sig)
1104         int     sig;
1105 {
1106         if (sig)
1107                 prt("signal %d\n", sig);
1108         prt("testcalls = %lu\n", testcalls);
1109         exit(sig);
1110 }
1111
1112
1113 void
1114 usage(void)
1115 {
1116         fprintf(stdout, "usage: %s",
1117                 "fsx [-dnqxAFLOWZ] [-b opnum] [-c Prob] [-l flen] [-m start:end] [-o oplen] [-p progressinterval] [-r readbdy] [-s style] [-t truncbdy] [-w writebdy] [-D startingop] [-N numops] [-P dirpath] [-S seed] fname\n\
1118         -b opnum: beginning operation number (default 1)\n\
1119         -c P: 1 in P chance of file close+open at each op (default infinity)\n\
1120         -d: debug output for all operations\n\
1121         -f flush and invalidate cache after I/O\n\
1122         -l flen: the upper bound on file size (default 262144)\n\
1123         -m startop:endop: monitor (print debug output) specified byte range (default 0:infinity)\n\
1124         -n: no verifications of file size\n\
1125         -o oplen: the upper bound on operation size (default 65536)\n\
1126         -p progressinterval: debug output at specified operation interval\n\
1127         -q: quieter operation\n\
1128         -r readbdy: 4096 would make reads page aligned (default 1)\n\
1129         -s style: 1 gives smaller truncates (default 0)\n\
1130         -t truncbdy: 4096 would make truncates page aligned (default 1)\n\
1131         -w writebdy: 4096 would make writes page aligned (default 1)\n\
1132         -x: preallocate file space before starting, XFS only (default 0)\n\
1133         -y synchronize changes to a file\n"
1134
1135 #ifdef AIO
1136 "       -A: Use the AIO system calls\n"
1137 #endif
1138 "       -D startingop: debug output starting at specified operation\n"
1139 #ifdef FALLOCATE
1140 "       -F: Do not use fallocate (preallocation) calls\n"
1141 #endif
1142 #ifdef FALLOC_FL_PUNCH_HOLE
1143 "       -H: Do not use punch hole calls\n"
1144 #endif
1145 "       -L: fsxLite - no file creations & no file size changes\n\
1146         -N numops: total # operations to do (default infinity)\n\
1147         -O: use oplen (see -o flag) for every op (default random)\n\
1148         -P: save .fsxlog and .fsxgood files in dirpath (default ./)\n\
1149         -S seed: for random # generator (default 1) 0 gets timestamp\n\
1150         -W: mapped write operations DISabled\n\
1151         -R: read() system calls only (mapped reads disabled)\n\
1152         -Z: O_DIRECT (use -R, -W, -r and -w too)\n\
1153         fname: this filename is REQUIRED (no default)\n");
1154         exit(90);
1155 }
1156
1157
1158 int
1159 getnum(char *s, char **e)
1160 {
1161         int ret;
1162
1163         *e = (char *) 0;
1164         ret = strtol(s, e, 0);
1165         if (*e)
1166                 switch (**e) {
1167                 case 'b':
1168                 case 'B':
1169                         ret *= 512;
1170                         *e = *e + 1;
1171                         break;
1172                 case 'k':
1173                 case 'K':
1174                         ret *= 1024;
1175                         *e = *e + 1;
1176                         break;
1177                 case 'm':
1178                 case 'M':
1179                         ret *= 1024*1024;
1180                         *e = *e + 1;
1181                         break;
1182                 case 'w':
1183                 case 'W':
1184                         ret *= 4;
1185                         *e = *e + 1;
1186                         break;
1187                 }
1188         return (ret);
1189 }
1190
1191 #ifdef AIO
1192
1193 #define QSZ     1024
1194 io_context_t    io_ctx;
1195 struct iocb     iocb;
1196
1197 int aio_setup()
1198 {
1199         int ret;
1200         ret = io_queue_init(QSZ, &io_ctx);
1201         if (ret != 0) {
1202                 fprintf(stderr, "aio_setup: io_queue_init failed: %s\n",
1203                         strerror(ret));
1204                 return(-1);
1205         }
1206         return(0);
1207 }
1208
1209 int
1210 __aio_rw(int rw, int fd, char *buf, unsigned len, unsigned offset)
1211 {
1212         struct io_event event;
1213         static struct timespec ts;
1214         struct iocb *iocbs[] = { &iocb };
1215         int ret;
1216         long res;
1217
1218         if (rw == READ) {
1219                 io_prep_pread(&iocb, fd, buf, len, offset);
1220         } else {
1221                 io_prep_pwrite(&iocb, fd, buf, len, offset);
1222         }
1223
1224         ts.tv_sec = 30;
1225         ts.tv_nsec = 0;
1226         ret = io_submit(io_ctx, 1, iocbs);
1227         if (ret != 1) {
1228                 fprintf(stderr, "errcode=%d\n", ret);
1229                 fprintf(stderr, "aio_rw: io_submit failed: %s\n",
1230                                 strerror(ret));
1231                 goto out_error;
1232         }
1233
1234         ret = io_getevents(io_ctx, 1, 1, &event, &ts);
1235         if (ret != 1) {
1236                 if (ret == 0)
1237                         fprintf(stderr, "aio_rw: no events available\n");
1238                 else {
1239                         fprintf(stderr, "errcode=%d\n", -ret);
1240                         fprintf(stderr, "aio_rw: io_getevents failed: %s\n",
1241                                         strerror(-ret));
1242                 }
1243                 goto out_error;
1244         }
1245         if (len != event.res) {
1246                 /*
1247                  * The b0rked libaio defines event.res as unsigned.
1248                  * However the kernel strucuture has it signed,
1249                  * and it's used to pass negated error value.
1250                  * Till the library is fixed use the temp var.
1251                  */
1252                 res = (long)event.res;
1253                 if (res >= 0)
1254                         fprintf(stderr, "bad io length: %lu instead of %u\n",
1255                                         res, len);
1256                 else {
1257                         fprintf(stderr, "errcode=%ld\n", -res);
1258                         fprintf(stderr, "aio_rw: async io failed: %s\n",
1259                                         strerror(-res));
1260                         ret = res;
1261                         goto out_error;
1262                 }
1263
1264         }
1265         return event.res;
1266
1267 out_error:
1268         /*
1269          * The caller expects error return in traditional libc
1270          * convention, i.e. -1 and the errno set to error.
1271          */
1272         errno = -ret;
1273         return -1;
1274 }
1275
1276 int aio_rw(int rw, int fd, char *buf, unsigned len, unsigned offset)
1277 {
1278         int ret;
1279
1280         if (aio) {
1281                 ret = __aio_rw(rw, fd, buf, len, offset);
1282         } else {
1283                 if (rw == READ)
1284                         ret = read(fd, buf, len);
1285                 else
1286                         ret = write(fd, buf, len);
1287         }
1288         return ret;
1289 }
1290
1291 #endif
1292
1293 void
1294 test_fallocate()
1295 {
1296 #ifdef FALLOCATE
1297         if (!lite && fallocate_calls) {
1298                 if (fallocate(fd, 0, 0, 1) && errno == EOPNOTSUPP) {
1299                         if(!quiet)
1300                                 warn("main: filesystem does not support fallocate, disabling\n");
1301                         fallocate_calls = 0;
1302                 } else {
1303                         ftruncate(fd, 0);
1304                 }
1305         }
1306 #else /* ! FALLOCATE */
1307         fallocate_calls = 0;
1308 #endif
1309
1310 }
1311
1312 void
1313 test_punch_hole()
1314 {
1315 #ifdef FALLOC_FL_PUNCH_HOLE
1316         if (!lite && punch_hole_calls) {
1317                 if (fallocate(fd, FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE,
1318                                 0, 1) && errno == EOPNOTSUPP) {
1319                         if(!quiet)
1320                                 warn("main: filesystem does not support fallocate punch hole, disabling");
1321                         punch_hole_calls = 0;
1322                 } else
1323                         ftruncate(fd, 0);
1324         }
1325 #else /* ! PUNCH HOLE */
1326         punch_hole_calls = 0;
1327 #endif
1328 }
1329
1330 int
1331 main(int argc, char **argv)
1332 {
1333         int     i, style, ch;
1334         char    *endp;
1335         char goodfile[1024];
1336         char logfile[1024];
1337
1338         goodfile[0] = 0;
1339         logfile[0] = 0;
1340
1341         page_size = getpagesize();
1342         page_mask = page_size - 1;
1343         mmap_mask = page_mask;
1344
1345
1346         setvbuf(stdout, (char *)0, _IOLBF, 0); /* line buffered stdout */
1347
1348         while ((ch = getopt(argc, argv, "b:c:dfl:m:no:p:qr:s:t:w:xyAD:FHLN:OP:RS:WZ"))
1349                != EOF)
1350                 switch (ch) {
1351                 case 'b':
1352                         simulatedopcount = getnum(optarg, &endp);
1353                         if (!quiet)
1354                                 fprintf(stdout, "Will begin at operation %ld\n",
1355                                         simulatedopcount);
1356                         if (simulatedopcount == 0)
1357                                 usage();
1358                         simulatedopcount -= 1;
1359                         break;
1360                 case 'c':
1361                         closeprob = getnum(optarg, &endp);
1362                         if (!quiet)
1363                                 fprintf(stdout,
1364                                         "Chance of close/open is 1 in %d\n",
1365                                         closeprob);
1366                         if (closeprob <= 0)
1367                                 usage();
1368                         break;
1369                 case 'd':
1370                         debug = 1;
1371                         break;
1372                 case 'f':
1373                         flush = 1;
1374                         break;
1375                 case 'l':
1376                         maxfilelen = getnum(optarg, &endp);
1377                         if (maxfilelen <= 0)
1378                                 usage();
1379                         break;
1380                 case 'm':
1381                         monitorstart = getnum(optarg, &endp);
1382                         if (monitorstart < 0)
1383                                 usage();
1384                         if (!endp || *endp++ != ':')
1385                                 usage();
1386                         monitorend = getnum(endp, &endp);
1387                         if (monitorend < 0)
1388                                 usage();
1389                         if (monitorend == 0)
1390                                 monitorend = -1; /* aka infinity */
1391                         debug = 1;
1392                 case 'n':
1393                         sizechecks = 0;
1394                         break;
1395                 case 'o':
1396                         maxoplen = getnum(optarg, &endp);
1397                         if (maxoplen <= 0)
1398                                 usage();
1399                         break;
1400                 case 'p':
1401                         progressinterval = getnum(optarg, &endp);
1402                         if (progressinterval == 0)
1403                                 usage();
1404                         break;
1405                 case 'q':
1406                         quiet = 1;
1407                         break;
1408                 case 'r':
1409                         readbdy = getnum(optarg, &endp);
1410                         if (readbdy <= 0)
1411                                 usage();
1412                         break;
1413                 case 's':
1414                         style = getnum(optarg, &endp);
1415                         if (style < 0 || style > 1)
1416                                 usage();
1417                         break;
1418                 case 't':
1419                         truncbdy = getnum(optarg, &endp);
1420                         if (truncbdy <= 0)
1421                                 usage();
1422                         break;
1423                 case 'w':
1424                         writebdy = getnum(optarg, &endp);
1425                         if (writebdy <= 0)
1426                                 usage();
1427                         break;
1428                 case 'x':
1429                         prealloc = 1;
1430                         break;
1431                 case 'y':
1432                         do_fsync = 1;
1433                         break;
1434                 case 'A':
1435                         aio = 1;
1436                         break;
1437                 case 'D':
1438                         debugstart = getnum(optarg, &endp);
1439                         if (debugstart < 1)
1440                                 usage();
1441                         break;
1442                 case 'F':
1443                         fallocate_calls = 0;
1444                         break;
1445                 case 'H':
1446                         punch_hole_calls = 0;
1447                         break;
1448                 case 'L':
1449                         lite = 1;
1450                         break;
1451                 case 'N':
1452                         numops = getnum(optarg, &endp);
1453                         if (numops < 0)
1454                                 usage();
1455                         break;
1456                 case 'O':
1457                         randomoplen = 0;
1458                         break;
1459                 case 'P':
1460                         strncpy(goodfile, optarg, sizeof(goodfile));
1461                         strcat(goodfile, "/");
1462                         strncpy(logfile, optarg, sizeof(logfile));
1463                         strcat(logfile, "/");
1464                         break;
1465                 case 'R':
1466                         mapped_reads = 0;
1467                         break;
1468                 case 'S':
1469                         seed = getnum(optarg, &endp);
1470                         if (seed == 0)
1471                                 seed = time(0) % 10000;
1472                         if (!quiet)
1473                                 fprintf(stdout, "Seed set to %d\n", seed);
1474                         if (seed < 0)
1475                                 usage();
1476                         break;
1477                 case 'W':
1478                         mapped_writes = 0;
1479                         if (!quiet)
1480                                 fprintf(stdout, "mapped writes DISABLED\n");
1481                         break;
1482                 case 'Z':
1483                         o_direct = O_DIRECT;
1484                         break;
1485                 default:
1486                         usage();
1487                         /* NOTREACHED */
1488                 }
1489         argc -= optind;
1490         argv += optind;
1491         if (argc != 1)
1492                 usage();
1493         fname = argv[0];
1494
1495         signal(SIGHUP,  cleanup);
1496         signal(SIGINT,  cleanup);
1497         signal(SIGPIPE, cleanup);
1498         signal(SIGALRM, cleanup);
1499         signal(SIGTERM, cleanup);
1500         signal(SIGXCPU, cleanup);
1501         signal(SIGXFSZ, cleanup);
1502         signal(SIGVTALRM,       cleanup);
1503         signal(SIGUSR1, cleanup);
1504         signal(SIGUSR2, cleanup);
1505
1506         initstate(seed, state, 256);
1507         setstate(state);
1508         fd = open(fname,
1509                 O_RDWR|(lite ? 0 : O_CREAT|O_TRUNC)|o_direct, 0666);
1510         if (fd < 0) {
1511                 prterr(fname);
1512                 exit(91);
1513         }
1514 #ifdef XFS
1515         if (prealloc) {
1516                 xfs_flock64_t   resv = { 0 };
1517 #ifdef HAVE_XFS_PLATFORM_DEFS_H
1518                 if (!platform_test_xfs_fd(fd)) {
1519                         prterr(fname);
1520                         fprintf(stderr, "main: cannot prealloc, non XFS\n");
1521                         exit(96);
1522                 }
1523 #endif
1524                 resv.l_len = maxfilelen;
1525                 if ((xfsctl(fname, fd, XFS_IOC_RESVSP, &resv)) < 0) {
1526                         prterr(fname);
1527                         exit(97);
1528                 }
1529         }
1530 #endif
1531         strncat(goodfile, fname, 256);
1532         strcat (goodfile, ".fsxgood");
1533         fsxgoodfd = open(goodfile, O_RDWR|O_CREAT|O_TRUNC, 0666);
1534         if (fsxgoodfd < 0) {
1535                 prterr(goodfile);
1536                 exit(92);
1537         }
1538         strncat(logfile, fname, 256);
1539         strcat (logfile, ".fsxlog");
1540         fsxlogf = fopen(logfile, "w");
1541         if (fsxlogf == NULL) {
1542                 prterr(logfile);
1543                 exit(93);
1544         }
1545
1546 #ifdef AIO
1547         if (aio)
1548                 aio_setup();
1549 #endif
1550
1551         if (lite) {
1552                 off_t ret;
1553                 file_size = maxfilelen = lseek(fd, (off_t)0, SEEK_END);
1554                 if (file_size == (off_t)-1) {
1555                         prterr(fname);
1556                         warn("main: lseek eof");
1557                         exit(94);
1558                 }
1559                 ret = lseek(fd, (off_t)0, SEEK_SET);
1560                 if (ret == (off_t)-1) {
1561                         prterr(fname);
1562                         warn("main: lseek 0");
1563                         exit(95);
1564                 }
1565         }
1566         original_buf = (char *) malloc(maxfilelen);
1567         for (i = 0; i < maxfilelen; i++)
1568                 original_buf[i] = random() % 256;
1569         good_buf = (char *) malloc(maxfilelen + writebdy);
1570         good_buf = round_up(good_buf, writebdy, 0);
1571         memset(good_buf, '\0', maxfilelen);
1572         temp_buf = (char *) malloc(maxoplen + readbdy);
1573         temp_buf = round_up(temp_buf, readbdy, 0);
1574         memset(temp_buf, '\0', maxoplen);
1575         if (lite) {     /* zero entire existing file */
1576                 ssize_t written;
1577
1578                 written = write(fd, good_buf, (size_t)maxfilelen);
1579                 if (written != maxfilelen) {
1580                         if (written == -1) {
1581                                 prterr(fname);
1582                                 warn("main: error on write");
1583                         } else
1584                                 warn("main: short write, 0x%x bytes instead "
1585                                         "of 0x%lx\n",
1586                                         (unsigned)written,
1587                                         maxfilelen);
1588                         exit(98);
1589                 }
1590         } else
1591                 check_trunc_hack();
1592
1593         test_fallocate();
1594         test_punch_hole();
1595
1596         while (numops == -1 || numops--)
1597                 test();
1598
1599         if (close(fd)) {
1600                 prterr("close");
1601                 report_failure(99);
1602         }
1603         prt("All operations completed A-OK!\n");
1604
1605         exit(0);
1606         return 0;
1607 }