2 * Copyright (C) 1991, NeXT Computer, Inc. All Rights Reserverd.
5 * Author: Avadis Tevanian, Jr.
7 * File system exerciser.
9 * Rewritten 8/98 by Conrad Minshall.
11 * Small changes to work under Linux -- davej.
13 * Checks for mmap last-page zero fill.
37 #include <sys/syscall.h>
43 #define NUMPRINTCOLUMNS 32 /* # columns of data to print on each line */
47 enum opflags { FL_NONE = 0, FL_SKIPPED = 1, FL_CLOSE_OPEN = 2, FL_KEEP_SIZE = 4 };
50 * A log entry is an operation and a bunch of arguments.
62 struct log_entry oplog[LOGSIZE]; /* the log */
63 int logptr = 0; /* current position in log */
64 int logcount = 0; /* total ops */
67 * The operation matrix is complex due to conditional execution of different
68 * features. Hence when we come to deciding what operation to run, we need to
69 * be careful in how we select the different operations. The active operations
70 * are mapped to numbers as follows:
72 * lite !lite integrity
81 * COLLAPSE RANGE: - 8 8
84 * When mapped read/writes are disabled, they are simply converted to normal
85 * reads and writes. When fallocate/fpunch calls are disabled, they are
88 * Because of the "lite" version, we also need to have different "maximum
89 * operation" defines to allow the ops to be selected correctly based on the
94 /* common operations */
101 /* !lite operations */
102 OP_TRUNCATE = OP_MAX_LITE,
113 /* integrity operations */
114 OP_FSYNC = OP_MAX_FULL,
119 #define PAGE_SIZE getpagesize()
121 #define PAGE_MASK (PAGE_SIZE - 1)
123 char *original_buf; /* a pointer to the original data */
124 char *good_buf; /* a pointer to the correct data */
125 char *temp_buf; /* a pointer to the current data */
126 char *fname; /* name of our test file */
127 char *bname; /* basename of our test file */
128 char *logdev; /* -i flag */
129 char *logid; /* -j flag */
130 char dname[1024]; /* -P flag */
131 char goodfile[PATH_MAX];
132 int dirpath = 0; /* -P flag */
133 int fd; /* fd for our test file */
135 blksize_t block_size = 0;
138 long long testcalls = 0; /* calls to function "test" */
140 long long simulatedopcount = 0; /* -b flag */
141 int closeprob = 0; /* -c flag */
142 int debug = 0; /* -d flag */
143 long long debugstart = 0; /* -D flag */
144 char filldata = 0; /* -g flag */
145 int flush = 0; /* -f flag */
146 int do_fsync = 0; /* -y flag */
147 unsigned long maxfilelen = 256 * 1024; /* -l flag */
148 int sizechecks = 1; /* -n flag disables them */
149 int maxoplen = 64 * 1024; /* -o flag */
150 int quiet = 0; /* -q flag */
151 long long progressinterval = 0; /* -p flag */
152 int readbdy = 1; /* -r flag */
153 int style = 0; /* -s flag */
154 int prealloc = 0; /* -x flag */
155 int truncbdy = 1; /* -t flag */
156 int writebdy = 1; /* -w flag */
157 long monitorstart = -1; /* -m flag */
158 long monitorend = -1; /* -m flag */
159 int lite = 0; /* -L flag */
160 long long numops = -1; /* -N flag */
161 int randomoplen = 1; /* -O flag disables it */
162 int seed = 1; /* -S flag */
163 int mapped_writes = 1; /* -W flag disables */
164 int fallocate_calls = 1; /* -F flag disables */
165 int keep_size_calls = 1; /* -K flag disables */
166 int punch_hole_calls = 1; /* -H flag disables */
167 int zero_range_calls = 1; /* -z flag disables */
168 int collapse_range_calls = 1; /* -C flag disables */
169 int insert_range_calls = 1; /* -I flag disables */
170 int mapped_reads = 1; /* -R flag disables it */
171 int check_file = 0; /* -X flag enables */
172 int clone_range_calls = 1; /* -J flag disables */
173 int dedupe_range_calls = 1; /* -B flag disables */
174 int copy_range_calls = 1; /* -E flag disables */
175 int integrity = 0; /* -i flag */
177 int o_direct; /* -Z */
184 int fsx_rw(int rw, int fd, char *buf, unsigned len, unsigned offset);
187 #define fsxread(a,b,c,d) fsx_rw(READ, a,b,c,d)
188 #define fsxwrite(a,b,c,d) fsx_rw(WRITE, a,b,c,d)
190 const char *replayops = NULL;
191 const char *recordops = NULL;
192 FILE * fsxlogf = NULL;
193 FILE * replayopsf = NULL;
194 char opsfile[PATH_MAX];
198 static void *round_ptr_up(void *ptr, unsigned long align, unsigned long offset)
200 unsigned long ret = (unsigned long)ptr;
202 ret = ((ret + align - 1) & ~(align - 1));
208 vwarnc(int code, const char *fmt, va_list ap)
211 fprintf(stderr, "%s: ", logid);
212 fprintf(stderr, "fsx: ");
214 vfprintf(stderr, fmt, ap);
215 fprintf(stderr, ": ");
217 fprintf(stderr, "%s\n", strerror(code));
221 warn(const char * fmt, ...) {
224 vwarnc(errno, fmt, ap);
229 prt(const char *fmt, ...)
234 fprintf(stdout, "%s: ", logid);
236 vfprintf(stdout, fmt, args);
240 vfprintf(fsxlogf, fmt, args);
246 prterr(const char *prefix)
248 prt("%s%s%s\n", prefix, prefix ? ": " : "", strerror(errno));
252 static const char *op_names[] = {
254 [OP_WRITE] = "write",
255 [OP_MAPREAD] = "mapread",
256 [OP_MAPWRITE] = "mapwrite",
257 [OP_TRUNCATE] = "truncate",
258 [OP_FALLOCATE] = "fallocate",
259 [OP_PUNCH_HOLE] = "punch_hole",
260 [OP_ZERO_RANGE] = "zero_range",
261 [OP_COLLAPSE_RANGE] = "collapse_range",
262 [OP_INSERT_RANGE] = "insert_range",
263 [OP_CLONE_RANGE] = "clone_range",
264 [OP_DEDUPE_RANGE] = "dedupe_range",
265 [OP_COPY_RANGE] = "copy_range",
266 [OP_FSYNC] = "fsync",
269 static const char *op_name(int operation)
271 if (operation >= 0 &&
272 operation < sizeof(op_names) / sizeof(op_names[0]))
273 return op_names[operation];
277 static int op_code(const char *name)
281 for (i = 0; i < sizeof(op_names) / sizeof(op_names[0]); i++)
282 if (op_names[i] && strcmp(name, op_names[i]) == 0)
288 log5(int operation, int arg0, int arg1, int arg2, enum opflags flags)
290 struct log_entry *le;
293 le->operation = operation;
295 flags |= FL_CLOSE_OPEN;
299 le->args[3] = file_size;
304 if (logptr >= LOGSIZE)
309 log4(int operation, int arg0, int arg1, enum opflags flags)
311 struct log_entry *le;
314 le->operation = operation;
316 flags |= FL_CLOSE_OPEN;
319 le->args[2] = file_size;
324 if (logptr >= LOGSIZE)
333 struct log_entry *lp;
335 prt("LOG DUMP (%d total operations):\n", logcount);
337 logopsf = fopen(opsfile, "w");
341 if (logcount < LOGSIZE) {
348 for ( ; count > 0; count--) {
349 bool overlap, overlap2;
352 opnum = i+1 + (logcount/LOGSIZE)*LOGSIZE;
353 prt("%d(%3d mod 256): ", opnum, opnum%256);
356 overlap = badoff >= lp->args[0] &&
357 badoff < lp->args[0] + lp->args[1];
359 if (lp->flags & FL_SKIPPED) {
360 prt("SKIPPED (no operation)");
364 switch (lp->operation) {
366 prt("MAPREAD 0x%x thru 0x%x\t(0x%x bytes)",
367 lp->args[0], lp->args[0] + lp->args[1] - 1,
373 prt("MAPWRITE 0x%x thru 0x%x\t(0x%x bytes)",
374 lp->args[0], lp->args[0] + lp->args[1] - 1,
380 prt("READ 0x%x thru 0x%x\t(0x%x bytes)",
381 lp->args[0], lp->args[0] + lp->args[1] - 1,
387 prt("WRITE 0x%x thru 0x%x\t(0x%x bytes)",
388 lp->args[0], lp->args[0] + lp->args[1] - 1,
390 if (lp->args[0] > lp->args[2])
392 else if (lp->args[0] + lp->args[1] > lp->args[2])
394 overlap = (badoff >= lp->args[0] ||
395 badoff >=lp->args[2]) &&
396 badoff < lp->args[0] + lp->args[1];
401 down = lp->args[1] < lp->args[2];
402 prt("TRUNCATE %s\tfrom 0x%x to 0x%x",
403 down ? "DOWN" : "UP", lp->args[2], lp->args[1]);
404 overlap = badoff >= lp->args[1 + !down] &&
405 badoff < lp->args[1 + !!down];
410 /* 0: offset 1: length 2: where alloced */
411 prt("FALLOC 0x%x thru 0x%x\t(0x%x bytes) ",
412 lp->args[0], lp->args[0] + lp->args[1],
414 if (lp->args[0] + lp->args[1] <= lp->args[2])
416 else if (lp->flags & FL_KEEP_SIZE)
424 prt("PUNCH 0x%x thru 0x%x\t(0x%x bytes)",
425 lp->args[0], lp->args[0] + lp->args[1] - 1,
431 prt("ZERO 0x%x thru 0x%x\t(0x%x bytes)",
432 lp->args[0], lp->args[0] + lp->args[1] - 1,
437 case OP_COLLAPSE_RANGE:
438 prt("COLLAPSE 0x%x thru 0x%x\t(0x%x bytes)",
439 lp->args[0], lp->args[0] + lp->args[1] - 1,
444 case OP_INSERT_RANGE:
445 prt("INSERT 0x%x thru 0x%x\t(0x%x bytes)",
446 lp->args[0], lp->args[0] + lp->args[1] - 1,
452 prt("CLONE 0x%x thru 0x%x\t(0x%x bytes) to 0x%x thru 0x%x",
453 lp->args[0], lp->args[0] + lp->args[1] - 1,
455 lp->args[2], lp->args[2] + lp->args[1] - 1);
456 overlap2 = badoff >= lp->args[2] &&
457 badoff < lp->args[2] + lp->args[1];
458 if (overlap && overlap2)
465 case OP_DEDUPE_RANGE:
466 prt("DEDUPE 0x%x thru 0x%x\t(0x%x bytes) to 0x%x thru 0x%x",
467 lp->args[0], lp->args[0] + lp->args[1] - 1,
469 lp->args[2], lp->args[2] + lp->args[1] - 1);
470 overlap2 = badoff >= lp->args[2] &&
471 badoff < lp->args[2] + lp->args[1];
472 if (overlap && overlap2)
480 prt("COPY 0x%x thru 0x%x\t(0x%x bytes) to 0x%x thru 0x%x",
481 lp->args[0], lp->args[0] + lp->args[1] - 1,
483 lp->args[2], lp->args[2] + lp->args[1] - 1);
484 overlap2 = badoff >= lp->args[2] &&
485 badoff < lp->args[2] + lp->args[1];
486 if (overlap && overlap2)
497 prt("BOGUS LOG ENTRY (operation code = %d)!",
503 if (lp->flags & FL_CLOSE_OPEN)
504 prt("\n\t\tCLOSE/OPEN");
513 if (lp->flags & FL_SKIPPED)
514 fprintf(logopsf, "skip ");
515 fprintf(logopsf, "%s", op_name(lp->operation));
516 for (j = 0; j < lp->nr_args; j++)
517 fprintf(logopsf, " 0x%x", lp->args[j]);
518 if (lp->flags & FL_KEEP_SIZE)
519 fprintf(logopsf, " keep_size");
520 if (lp->flags & FL_CLOSE_OPEN)
521 fprintf(logopsf, " close_open");
523 fprintf(logopsf, " *");
524 fprintf(logopsf, "\n");
529 if (fclose(logopsf) != 0)
532 prt("Log of operations saved to \"%s\"; "
533 "replay with --replay-ops\n",
540 save_buffer(char *buffer, off_t bufferlength, int fd)
543 ssize_t byteswritten;
545 if (fd <= 0 || bufferlength == 0)
548 if (bufferlength > SSIZE_MAX) {
549 prt("fsx flaw: overflow in save_buffer\n");
553 off_t size_by_seek = lseek(fd, (off_t)0, SEEK_END);
554 if (size_by_seek == (off_t)-1)
555 prterr("save_buffer: lseek eof");
556 else if (bufferlength > size_by_seek) {
557 warn("save_buffer: .fsxgood file too short... will save 0x%llx bytes instead of 0x%llx\n", (unsigned long long)size_by_seek,
558 (unsigned long long)bufferlength);
559 bufferlength = size_by_seek;
563 ret = lseek(fd, (off_t)0, SEEK_SET);
564 if (ret == (off_t)-1)
565 prterr("save_buffer: lseek 0");
567 byteswritten = write(fd, buffer, (size_t)bufferlength);
568 if (byteswritten != bufferlength) {
569 if (byteswritten == -1)
570 prterr("save_buffer write");
572 warn("save_buffer: short write, 0x%x bytes instead of 0x%llx\n",
573 (unsigned)byteswritten,
574 (unsigned long long)bufferlength);
580 report_failure(int status)
586 save_buffer(good_buf, file_size, fsxgoodfd);
587 prt("Correct content saved for comparison\n");
588 prt("(maybe hexdump \"%s\" vs \"%s\")\n",
597 #define short_at(cp) ((unsigned short)((*((unsigned char *)(cp)) << 8) | \
598 *(((unsigned char *)(cp)) + 1)))
606 snprintf(command, 256, "dmsetup message %s 0 mark %s.mark%d", logdev,
608 ret = system(command);
610 prterr("dmsetup mark failed");
616 dump_fsync_buffer(void)
618 char fname_buffer[PATH_MAX];
624 snprintf(fname_buffer, sizeof(fname_buffer), "%s%s.mark%d", dname,
626 good_fd = open(fname_buffer, O_WRONLY|O_CREAT|O_TRUNC, 0666);
628 prterr(fname_buffer);
632 save_buffer(good_buf, file_size, good_fd);
634 prt("Dumped fsync buffer to %s\n", fname_buffer + dirpath);
638 check_buffers(char *buf, unsigned offset, unsigned size)
646 if (memcmp(good_buf + offset, buf, size) != 0) {
647 prt("READ BAD DATA: offset = 0x%x, size = 0x%x, fname = %s\n",
648 offset, size, fname);
649 prt("OFFSET\tGOOD\tBAD\tRANGE\n");
651 c = good_buf[offset];
655 bad = short_at(&buf[i]);
656 prt("0x%05x\t0x%04x\t0x%04x", offset,
657 short_at(&good_buf[offset]), bad);
658 op = buf[offset & 1 ? i+1 : i];
659 prt("\t0x%05x\n", n);
661 prt("operation# (mod 256) for "
662 "the bad data may be %u\n",
663 ((unsigned)op & 0xff));
665 prt("operation# (mod 256) for "
666 "the bad data unknown, check"
667 " HOLE and EXTEND ops\n");
687 if (fstat(fd, &statbuf)) {
688 prterr("check_size: fstat");
689 statbuf.st_size = -1;
691 size_by_seek = lseek(fd, (off_t)0, SEEK_END);
692 if (file_size != statbuf.st_size || file_size != size_by_seek) {
693 prt("Size error: expected 0x%llx stat 0x%llx seek 0x%llx\n",
694 (unsigned long long)file_size,
695 (unsigned long long)statbuf.st_size,
696 (unsigned long long)size_by_seek);
703 check_trunc_hack(void)
706 off_t offset = file_size + (off_t)100000;
708 if (ftruncate(fd, file_size))
710 if (ftruncate(fd, offset))
713 if (statbuf.st_size != offset) {
714 prt("no extend on truncate! not posix!\n");
717 if (ftruncate(fd, file_size)) {
719 prterr("check_trunc_hack: ftruncate");
725 doflush(unsigned offset, unsigned size)
731 if (o_direct == O_DIRECT)
734 pg_offset = offset & mmap_mask;
735 map_size = pg_offset + size;
737 if ((p = (char *)mmap(0, map_size, PROT_READ | PROT_WRITE,
738 MAP_FILE | MAP_SHARED, fd,
739 (off_t)(offset - pg_offset))) == (char *)-1) {
740 prterr("doflush: mmap");
743 if (msync(p, map_size, MS_INVALIDATE) != 0) {
744 prterr("doflush: msync");
747 if (munmap(p, map_size) != 0) {
748 prterr("doflush: munmap");
754 doread(unsigned offset, unsigned size)
759 offset -= offset % readbdy;
761 size -= size % readbdy;
763 if (!quiet && testcalls > simulatedopcount && !o_direct)
764 prt("skipping zero size read\n");
765 log4(OP_READ, offset, size, FL_SKIPPED);
768 if (size + offset > file_size) {
769 if (!quiet && testcalls > simulatedopcount)
770 prt("skipping seek/read past end of file\n");
771 log4(OP_READ, offset, size, FL_SKIPPED);
775 log4(OP_READ, offset, size, FL_NONE);
777 if (testcalls <= simulatedopcount)
781 ((progressinterval && testcalls % progressinterval == 0) ||
783 (monitorstart == -1 ||
784 (offset + size > monitorstart &&
785 (monitorend == -1 || offset <= monitorend))))))
786 prt("%lld read\t0x%x thru\t0x%x\t(0x%x bytes)\n", testcalls,
787 offset, offset + size - 1, size);
788 ret = lseek(fd, (off_t)offset, SEEK_SET);
789 if (ret == (off_t)-1) {
790 prterr("doread: lseek");
793 iret = fsxread(fd, temp_buf, size, offset);
796 prterr("doread: read");
798 prt("short read: 0x%x bytes instead of 0x%x\n",
802 check_buffers(temp_buf, offset, size);
806 check_eofpage(char *s, unsigned offset, char *p, int size)
808 unsigned long last_page, should_be_zero;
810 if (offset + size <= (file_size & ~page_mask))
813 * we landed in the last page of the file
814 * test to make sure the VM system provided 0's
815 * beyond the true end of the file mapping
816 * (as required by mmap def in 1996 posix 1003.1)
818 last_page = ((unsigned long)p + (offset & page_mask) + size) & ~page_mask;
820 for (should_be_zero = last_page + (file_size & page_mask);
821 should_be_zero < last_page + page_size;
823 if (*(char *)should_be_zero) {
824 prt("Mapped %s: non-zero data past EOF (0x%llx) page offset 0x%x is 0x%04x\n",
825 s, file_size - 1, should_be_zero & page_mask,
826 short_at(should_be_zero));
834 static char *check_buf;
836 unsigned size = file_size;
844 check_buf = (char *) malloc(maxfilelen + writebdy);
845 assert(check_buf != NULL);
846 check_buf = round_ptr_up(check_buf, writebdy, 0);
847 memset(check_buf, '\0', maxfilelen);
851 size -= size % readbdy;
855 ret = lseek(fd, (off_t)offset, SEEK_SET);
856 if (ret == (off_t)-1) {
857 prterr("doread: lseek");
861 iret = fsxread(fd, check_buf, size, offset);
864 prterr("check_contents: read");
866 prt("short check read: 0x%x bytes instead of 0x%x\n",
870 check_buffers(check_buf, offset, size);
872 /* Map eof page, check it */
873 map_offset = size - (size & PAGE_MASK);
874 if (map_offset == size)
875 map_offset -= PAGE_SIZE;
876 map_size = size - map_offset;
878 p = mmap(0, map_size, PROT_READ, MAP_SHARED, fd, map_offset);
879 if (p == MAP_FAILED) {
880 prterr("check_contents: mmap");
883 check_eofpage("check_contents", map_offset, p, map_size);
885 if (munmap(p, map_size) != 0) {
886 prterr("check_contents: munmap");
892 domapread(unsigned offset, unsigned size)
898 offset -= offset % readbdy;
900 if (!quiet && testcalls > simulatedopcount)
901 prt("skipping zero size read\n");
902 log4(OP_MAPREAD, offset, size, FL_SKIPPED);
905 if (size + offset > file_size) {
906 if (!quiet && testcalls > simulatedopcount)
907 prt("skipping seek/read past end of file\n");
908 log4(OP_MAPREAD, offset, size, FL_SKIPPED);
912 log4(OP_MAPREAD, offset, size, FL_NONE);
914 if (testcalls <= simulatedopcount)
918 ((progressinterval && testcalls % progressinterval == 0) ||
920 (monitorstart == -1 ||
921 (offset + size > monitorstart &&
922 (monitorend == -1 || offset <= monitorend))))))
923 prt("%lld mapread\t0x%x thru\t0x%x\t(0x%x bytes)\n", testcalls,
924 offset, offset + size - 1, size);
926 pg_offset = offset & PAGE_MASK;
927 map_size = pg_offset + size;
929 if ((p = (char *)mmap(0, map_size, PROT_READ, MAP_SHARED, fd,
930 (off_t)(offset - pg_offset))) == (char *)-1) {
931 prterr("domapread: mmap");
934 memcpy(temp_buf, p + pg_offset, size);
936 check_eofpage("Read", offset, p, size);
938 if (munmap(p, map_size) != 0) {
939 prterr("domapread: munmap");
943 check_buffers(temp_buf, offset, size);
948 gendata(char *original_buf, char *good_buf, unsigned offset, unsigned size)
952 good_buf[offset] = filldata;
954 good_buf[offset] = testcalls % 256;
956 good_buf[offset] += original_buf[offset];
964 dowrite(unsigned offset, unsigned size)
969 offset -= offset % writebdy;
971 size -= size % writebdy;
973 if (!quiet && testcalls > simulatedopcount && !o_direct)
974 prt("skipping zero size write\n");
975 log4(OP_WRITE, offset, size, FL_SKIPPED);
979 log4(OP_WRITE, offset, size, FL_NONE);
981 gendata(original_buf, good_buf, offset, size);
982 if (file_size < offset + size) {
983 if (file_size < offset)
984 memset(good_buf + file_size, '\0', offset - file_size);
985 file_size = offset + size;
987 warn("Lite file size bug in fsx!");
992 if (testcalls <= simulatedopcount)
996 ((progressinterval && testcalls % progressinterval == 0) ||
998 (monitorstart == -1 ||
999 (offset + size > monitorstart &&
1000 (monitorend == -1 || offset <= monitorend))))))
1001 prt("%lld write\t0x%x thru\t0x%x\t(0x%x bytes)\n", testcalls,
1002 offset, offset + size - 1, size);
1003 ret = lseek(fd, (off_t)offset, SEEK_SET);
1004 if (ret == (off_t)-1) {
1005 prterr("dowrite: lseek");
1006 report_failure(150);
1008 iret = fsxwrite(fd, good_buf + offset, size, offset);
1011 prterr("dowrite: write");
1013 prt("short write: 0x%x bytes instead of 0x%x\n",
1015 report_failure(151);
1019 prt("fsync() failed: %s\n", strerror(errno));
1020 report_failure(152);
1024 doflush(offset, size);
1030 domapwrite(unsigned offset, unsigned size)
1037 offset -= offset % writebdy;
1039 if (!quiet && testcalls > simulatedopcount)
1040 prt("skipping zero size write\n");
1041 log4(OP_MAPWRITE, offset, size, FL_SKIPPED);
1044 cur_filesize = file_size;
1046 log4(OP_MAPWRITE, offset, size, FL_NONE);
1048 gendata(original_buf, good_buf, offset, size);
1049 if (file_size < offset + size) {
1050 if (file_size < offset)
1051 memset(good_buf + file_size, '\0', offset - file_size);
1052 file_size = offset + size;
1054 warn("Lite file size bug in fsx!");
1055 report_failure(200);
1059 if (testcalls <= simulatedopcount)
1063 ((progressinterval && testcalls % progressinterval == 0) ||
1065 (monitorstart == -1 ||
1066 (offset + size > monitorstart &&
1067 (monitorend == -1 || offset <= monitorend))))))
1068 prt("%lld mapwrite\t0x%x thru\t0x%x\t(0x%x bytes)\n", testcalls,
1069 offset, offset + size - 1, size);
1071 if (file_size > cur_filesize) {
1072 if (ftruncate(fd, file_size) == -1) {
1073 prterr("domapwrite: ftruncate");
1077 pg_offset = offset & PAGE_MASK;
1078 map_size = pg_offset + size;
1080 if ((p = (char *)mmap(0, map_size, PROT_READ | PROT_WRITE,
1081 MAP_FILE | MAP_SHARED, fd,
1082 (off_t)(offset - pg_offset))) == (char *)-1) {
1083 prterr("domapwrite: mmap");
1084 report_failure(202);
1086 memcpy(p + pg_offset, good_buf + offset, size);
1087 if (msync(p, map_size, MS_SYNC) != 0) {
1088 prterr("domapwrite: msync");
1089 report_failure(203);
1092 check_eofpage("Write", offset, p, size);
1094 if (munmap(p, map_size) != 0) {
1095 prterr("domapwrite: munmap");
1096 report_failure(204);
1102 dotruncate(unsigned size)
1104 int oldsize = file_size;
1106 size -= size % truncbdy;
1107 if (size > biggest) {
1109 if (!quiet && testcalls > simulatedopcount)
1110 prt("truncating to largest ever: 0x%x\n", size);
1113 log4(OP_TRUNCATE, 0, size, FL_NONE);
1115 if (size > file_size)
1116 memset(good_buf + file_size, '\0', size - file_size);
1119 if (testcalls <= simulatedopcount)
1122 if ((progressinterval && testcalls % progressinterval == 0) ||
1123 (debug && (monitorstart == -1 || monitorend == -1 ||
1124 size <= monitorend)))
1125 prt("%lld trunc\tfrom 0x%x to 0x%x\n", testcalls, oldsize,
1127 if (ftruncate(fd, (off_t)size) == -1) {
1128 prt("ftruncate1: %x\n", size);
1129 prterr("dotruncate: ftruncate");
1130 report_failure(160);
1134 #ifdef FALLOC_FL_PUNCH_HOLE
1136 do_punch_hole(unsigned offset, unsigned length)
1138 unsigned end_offset;
1141 int mode = FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE;
1144 if (!quiet && testcalls > simulatedopcount)
1145 prt("skipping zero length punch hole\n");
1146 log4(OP_PUNCH_HOLE, offset, length, FL_SKIPPED);
1150 if (file_size <= (loff_t)offset) {
1151 if (!quiet && testcalls > simulatedopcount)
1152 prt("skipping hole punch off the end of the file\n");
1153 log4(OP_PUNCH_HOLE, offset, length, FL_SKIPPED);
1157 end_offset = offset + length;
1159 log4(OP_PUNCH_HOLE, offset, length, FL_NONE);
1161 if (testcalls <= simulatedopcount)
1164 if ((progressinterval && testcalls % progressinterval == 0) ||
1165 (debug && (monitorstart == -1 || monitorend == -1 ||
1166 end_offset <= monitorend))) {
1167 prt("%lld punch\tfrom 0x%x to 0x%x, (0x%x bytes)\n", testcalls,
1168 offset, offset+length, length);
1170 if (fallocate(fd, mode, (loff_t)offset, (loff_t)length) == -1) {
1171 prt("punch hole: 0x%x to 0x%x\n", offset, offset + length);
1172 prterr("do_punch_hole: fallocate");
1173 report_failure(161);
1177 max_offset = offset < file_size ? offset : file_size;
1178 max_len = max_offset + length <= file_size ? length :
1179 file_size - max_offset;
1180 memset(good_buf + max_offset, '\0', max_len);
1185 do_punch_hole(unsigned offset, unsigned length)
1191 #ifdef FALLOC_FL_ZERO_RANGE
1193 do_zero_range(unsigned offset, unsigned length, int keep_size)
1195 unsigned end_offset;
1196 int mode = FALLOC_FL_ZERO_RANGE;
1199 mode |= FALLOC_FL_KEEP_SIZE;
1202 if (!quiet && testcalls > simulatedopcount)
1203 prt("skipping zero length zero range\n");
1204 log4(OP_ZERO_RANGE, offset, length, FL_SKIPPED |
1205 (keep_size ? FL_KEEP_SIZE : FL_NONE));
1209 end_offset = keep_size ? 0 : offset + length;
1211 if (end_offset > biggest) {
1212 biggest = end_offset;
1213 if (!quiet && testcalls > simulatedopcount)
1214 prt("zero_range to largest ever: 0x%x\n", end_offset);
1218 * last arg matches fallocate string array index in logdump:
1219 * 0: allocate past EOF
1220 * 1: extending prealloc
1221 * 2: interior prealloc
1223 log4(OP_ZERO_RANGE, offset, length,
1224 keep_size ? FL_KEEP_SIZE : FL_NONE);
1226 if (testcalls <= simulatedopcount)
1229 if ((progressinterval && testcalls % progressinterval == 0) ||
1230 (debug && (monitorstart == -1 || monitorend == -1 ||
1231 end_offset <= monitorend))) {
1232 prt("%lld zero\tfrom 0x%x to 0x%x, (0x%x bytes)\n", testcalls,
1233 offset, offset+length, length);
1235 if (fallocate(fd, mode, (loff_t)offset, (loff_t)length) == -1) {
1236 prt("zero range: 0x%x to 0x%x\n", offset, offset + length);
1237 prterr("do_zero_range: fallocate");
1238 report_failure(161);
1241 memset(good_buf + offset, '\0', length);
1243 if (!keep_size && end_offset > file_size) {
1245 * If there's a gap between the old file size and the offset of
1246 * the zero range operation, fill the gap with zeroes.
1248 if (offset > file_size)
1249 memset(good_buf + file_size, '\0', offset - file_size);
1251 file_size = end_offset;
1257 do_zero_range(unsigned offset, unsigned length, int keep_size)
1263 #ifdef FALLOC_FL_COLLAPSE_RANGE
1265 do_collapse_range(unsigned offset, unsigned length)
1267 unsigned end_offset;
1268 int mode = FALLOC_FL_COLLAPSE_RANGE;
1271 if (!quiet && testcalls > simulatedopcount)
1272 prt("skipping zero length collapse range\n");
1273 log4(OP_COLLAPSE_RANGE, offset, length, FL_SKIPPED);
1277 end_offset = offset + length;
1278 if ((loff_t)end_offset >= file_size) {
1279 if (!quiet && testcalls > simulatedopcount)
1280 prt("skipping collapse range behind EOF\n");
1281 log4(OP_COLLAPSE_RANGE, offset, length, FL_SKIPPED);
1285 log4(OP_COLLAPSE_RANGE, offset, length, FL_NONE);
1287 if (testcalls <= simulatedopcount)
1290 if ((progressinterval && testcalls % progressinterval == 0) ||
1291 (debug && (monitorstart == -1 || monitorend == -1 ||
1292 end_offset <= monitorend))) {
1293 prt("%lld collapse\tfrom 0x%x to 0x%x, (0x%x bytes)\n",
1294 testcalls, offset, offset+length, length);
1296 if (fallocate(fd, mode, (loff_t)offset, (loff_t)length) == -1) {
1297 prt("collapse range: 0x%x to 0x%x\n", offset, offset + length);
1298 prterr("do_collapse_range: fallocate");
1299 report_failure(161);
1302 memmove(good_buf + offset, good_buf + end_offset,
1303 file_size - end_offset);
1304 file_size -= length;
1309 do_collapse_range(unsigned offset, unsigned length)
1315 #ifdef FALLOC_FL_INSERT_RANGE
1317 do_insert_range(unsigned offset, unsigned length)
1319 unsigned end_offset;
1320 int mode = FALLOC_FL_INSERT_RANGE;
1323 if (!quiet && testcalls > simulatedopcount)
1324 prt("skipping zero length insert range\n");
1325 log4(OP_INSERT_RANGE, offset, length, FL_SKIPPED);
1329 if ((loff_t)offset >= file_size) {
1330 if (!quiet && testcalls > simulatedopcount)
1331 prt("skipping insert range behind EOF\n");
1332 log4(OP_INSERT_RANGE, offset, length, FL_SKIPPED);
1336 log4(OP_INSERT_RANGE, offset, length, FL_NONE);
1338 if (testcalls <= simulatedopcount)
1341 end_offset = offset + length;
1342 if ((progressinterval && testcalls % progressinterval == 0) ||
1343 (debug && (monitorstart == -1 || monitorend == -1 ||
1344 end_offset <= monitorend))) {
1345 prt("%lld insert\tfrom 0x%x to 0x%x, (0x%x bytes)\n", testcalls,
1346 offset, offset+length, length);
1348 if (fallocate(fd, mode, (loff_t)offset, (loff_t)length) == -1) {
1349 prt("insert range: 0x%x to 0x%x\n", offset, offset + length);
1350 prterr("do_insert_range: fallocate");
1351 report_failure(161);
1354 memmove(good_buf + end_offset, good_buf + offset,
1355 file_size - offset);
1356 memset(good_buf + offset, '\0', length);
1357 file_size += length;
1362 do_insert_range(unsigned offset, unsigned length)
1370 test_clone_range(void)
1372 struct file_clone_range fcr = {
1376 if (ioctl(fd, FICLONERANGE, &fcr) &&
1377 (errno == EOPNOTSUPP || errno == ENOTTY)) {
1380 "main: filesystem does not support "
1381 "clone range, disabling!\n");
1389 do_clone_range(unsigned offset, unsigned length, unsigned dest)
1391 struct file_clone_range fcr = {
1393 .src_offset = offset,
1394 .src_length = length,
1395 .dest_offset = dest,
1399 if (!quiet && testcalls > simulatedopcount)
1400 prt("skipping zero length clone range\n");
1401 log5(OP_CLONE_RANGE, offset, length, dest, FL_SKIPPED);
1405 if ((loff_t)offset >= file_size) {
1406 if (!quiet && testcalls > simulatedopcount)
1407 prt("skipping clone range behind EOF\n");
1408 log5(OP_CLONE_RANGE, offset, length, dest, FL_SKIPPED);
1412 if (dest + length > biggest) {
1413 biggest = dest + length;
1414 if (!quiet && testcalls > simulatedopcount)
1415 prt("cloning to largest ever: 0x%x\n", dest + length);
1418 log5(OP_CLONE_RANGE, offset, length, dest, FL_NONE);
1420 if (testcalls <= simulatedopcount)
1423 if ((progressinterval && testcalls % progressinterval == 0) ||
1424 (debug && (monitorstart == -1 || monitorend == -1 ||
1425 dest <= monitorstart || dest + length <= monitorend))) {
1426 prt("%lu clone\tfrom 0x%x to 0x%x, (0x%x bytes) at 0x%x\n",
1427 testcalls, offset, offset+length, length, dest);
1430 if (ioctl(fd, FICLONERANGE, &fcr) == -1) {
1431 prt("clone range: 0x%x to 0x%x at 0x%x\n", offset,
1432 offset + length, dest);
1433 prterr("do_clone_range: FICLONERANGE");
1434 report_failure(161);
1437 memcpy(good_buf + dest, good_buf + offset, length);
1438 if (dest > file_size)
1439 memset(good_buf + file_size, '\0', dest - file_size);
1440 if (dest + length > file_size)
1441 file_size = dest + length;
1446 test_clone_range(void)
1452 do_clone_range(unsigned offset, unsigned length, unsigned dest)
1458 #ifdef FIDEDUPERANGE
1460 test_dedupe_range(void)
1462 struct file_dedupe_range *fdr;
1468 fdr = calloc(sizeof(struct file_dedupe_range_info) +
1469 sizeof(struct file_dedupe_range), 1);
1471 prterr("do_dedupe_range: malloc");
1472 report_failure(161);
1475 /* Make sure we have at least two blocks */
1476 new_len = block_size * 2;
1477 if (file_size < new_len && ftruncate(fd, new_len)) {
1478 warn("main: ftruncate");
1482 /* Try to dedupe them */
1483 fdr->src_length = block_size;
1484 fdr->dest_count = 1;
1485 fdr->info[0].dest_fd = fd;
1486 fdr->info[0].dest_offset = block_size;
1488 if (ioctl(fd, FIDEDUPERANGE, fdr))
1490 else if (fdr->info[0].status < 0)
1491 error = -fdr->info[0].status;
1495 /* Older kernels may return EINVAL... */
1496 if (error == EOPNOTSUPP || error == ENOTTY || error == EINVAL) {
1499 "main: filesystem does not support "
1500 "dedupe range, disabling!\n");
1504 /* Put the file back the way it was. */
1505 if (file_size < new_len && ftruncate(fd, file_size)) {
1506 warn("main: ftruncate");
1515 do_dedupe_range(unsigned offset, unsigned length, unsigned dest)
1517 struct file_dedupe_range *fdr;
1520 if (!quiet && testcalls > simulatedopcount)
1521 prt("skipping zero length dedupe range\n");
1522 log5(OP_DEDUPE_RANGE, offset, length, dest, FL_SKIPPED);
1526 if ((loff_t)offset >= file_size) {
1527 if (!quiet && testcalls > simulatedopcount)
1528 prt("skipping dedupe range behind EOF\n");
1529 log5(OP_DEDUPE_RANGE, offset, length, dest, FL_SKIPPED);
1533 log5(OP_DEDUPE_RANGE, offset, length, dest, FL_NONE);
1535 if (testcalls <= simulatedopcount)
1538 if ((progressinterval && testcalls % progressinterval == 0) ||
1539 (debug && (monitorstart == -1 || monitorend == -1 ||
1540 dest <= monitorstart || dest + length <= monitorend))) {
1541 prt("%lu dedupe\tfrom 0x%x to 0x%x, (0x%x bytes) at 0x%x\n",
1542 testcalls, offset, offset+length, length, dest);
1546 fdr = calloc(sizeof(struct file_dedupe_range_info) +
1547 sizeof(struct file_dedupe_range), 1);
1549 prterr("do_dedupe_range: malloc");
1550 report_failure(161);
1553 /* Dedupe data blocks */
1554 fdr->src_offset = offset;
1555 fdr->src_length = length;
1556 fdr->dest_count = 1;
1557 fdr->info[0].dest_fd = fd;
1558 fdr->info[0].dest_offset = dest;
1560 if (ioctl(fd, FIDEDUPERANGE, fdr) == -1) {
1561 prt("dedupe range: 0x%x to 0x%x at 0x%x\n", offset,
1562 offset + length, dest);
1563 prterr("do_dedupe_range(0): FIDEDUPERANGE");
1564 report_failure(161);
1565 } else if (fdr->info[0].status < 0) {
1566 errno = -fdr->info[0].status;
1567 prt("dedupe range: 0x%x to 0x%x at 0x%x\n", offset,
1568 offset + length, dest);
1569 prterr("do_dedupe_range(1): FIDEDUPERANGE");
1570 report_failure(161);
1578 test_dedupe_range(void)
1584 do_dedupe_range(unsigned offset, unsigned length, unsigned dest)
1590 #ifdef HAVE_COPY_FILE_RANGE
1592 test_copy_range(void)
1594 loff_t o1 = 0, o2 = 1;
1596 if (syscall(__NR_copy_file_range, fd, &o1, fd, &o2, 1, 0) == -1 &&
1597 (errno == ENOSYS || errno == EOPNOTSUPP || errno == ENOTTY)) {
1600 "main: filesystem does not support "
1601 "copy range, disabling!\n");
1609 do_copy_range(unsigned offset, unsigned length, unsigned dest)
1617 if (!quiet && testcalls > simulatedopcount)
1618 prt("skipping zero length copy range\n");
1619 log5(OP_COPY_RANGE, offset, length, dest, FL_SKIPPED);
1623 if ((loff_t)offset >= file_size) {
1624 if (!quiet && testcalls > simulatedopcount)
1625 prt("skipping copy range behind EOF\n");
1626 log5(OP_COPY_RANGE, offset, length, dest, FL_SKIPPED);
1630 if (dest + length > biggest) {
1631 biggest = dest + length;
1632 if (!quiet && testcalls > simulatedopcount)
1633 prt("copying to largest ever: 0x%x\n", dest + length);
1636 log5(OP_COPY_RANGE, offset, length, dest, FL_NONE);
1638 if (testcalls <= simulatedopcount)
1641 if ((progressinterval && testcalls % progressinterval == 0) ||
1642 (debug && (monitorstart == -1 || monitorend == -1 ||
1643 dest <= monitorstart || dest + length <= monitorend))) {
1644 prt("%lu copy\tfrom 0x%x to 0x%x, (0x%x bytes) at 0x%x\n",
1645 testcalls, offset, offset+length, length, dest);
1653 nr = syscall(__NR_copy_file_range, fd, &o1, fd, &o2, olen, 0);
1655 if (errno != EAGAIN || tries++ >= 300)
1657 } else if (nr > olen) {
1658 prt("copy range: 0x%x to 0x%x at 0x%x\n", offset,
1659 offset + length, dest);
1660 prt("do_copy_range: asked %u, copied %u??\n",
1662 report_failure(161);
1667 prt("copy range: 0x%x to 0x%x at 0x%x\n", offset,
1668 offset + length, dest);
1669 prterr("do_copy_range:");
1670 report_failure(161);
1673 memcpy(good_buf + dest, good_buf + offset, length);
1674 if (dest > file_size)
1675 memset(good_buf + file_size, '\0', dest - file_size);
1676 if (dest + length > file_size)
1677 file_size = dest + length;
1682 test_copy_range(void)
1688 do_copy_range(unsigned offset, unsigned length, unsigned dest)
1694 #ifdef HAVE_LINUX_FALLOC_H
1695 /* fallocate is basically a no-op unless extending, then a lot like a truncate */
1697 do_preallocate(unsigned offset, unsigned length, int keep_size)
1699 unsigned end_offset;
1702 if (!quiet && testcalls > simulatedopcount)
1703 prt("skipping zero length fallocate\n");
1704 log4(OP_FALLOCATE, offset, length, FL_SKIPPED |
1705 (keep_size ? FL_KEEP_SIZE : FL_NONE));
1709 end_offset = keep_size ? 0 : offset + length;
1711 if (end_offset > biggest) {
1712 biggest = end_offset;
1713 if (!quiet && testcalls > simulatedopcount)
1714 prt("fallocating to largest ever: 0x%x\n", end_offset);
1718 * last arg matches fallocate string array index in logdump:
1719 * 0: allocate past EOF
1720 * 1: extending prealloc
1721 * 2: interior prealloc
1723 log4(OP_FALLOCATE, offset, length,
1724 keep_size ? FL_KEEP_SIZE : FL_NONE);
1726 if (end_offset > file_size) {
1727 memset(good_buf + file_size, '\0', end_offset - file_size);
1728 file_size = end_offset;
1731 if (testcalls <= simulatedopcount)
1734 if ((progressinterval && testcalls % progressinterval == 0) ||
1735 (debug && (monitorstart == -1 || monitorend == -1 ||
1736 end_offset <= monitorend)))
1737 prt("%lld falloc\tfrom 0x%x to 0x%x (0x%x bytes)\n", testcalls,
1738 offset, offset + length, length);
1739 if (fallocate(fd, keep_size ? FALLOC_FL_KEEP_SIZE : 0, (loff_t)offset, (loff_t)length) == -1) {
1740 prt("fallocate: 0x%x to 0x%x\n", offset, offset + length);
1741 prterr("do_preallocate: fallocate");
1742 report_failure(161);
1747 do_preallocate(unsigned offset, unsigned length, int keep_size)
1758 if (lseek(fd, (off_t)0, SEEK_SET) == (off_t)-1) {
1759 prterr("writefileimage: lseek");
1760 report_failure(171);
1762 iret = write(fd, good_buf, file_size);
1763 if ((off_t)iret != file_size) {
1765 prterr("writefileimage: write");
1767 prt("short write: 0x%x bytes instead of 0x%llx\n",
1768 iret, (unsigned long long)file_size);
1769 report_failure(172);
1771 if (lite ? 0 : ftruncate(fd, file_size) == -1) {
1772 prt("ftruncate2: %llx\n", (unsigned long long)file_size);
1773 prterr("writefileimage: ftruncate");
1774 report_failure(173);
1782 if (testcalls <= simulatedopcount)
1786 prt("%lld close/open\n", testcalls);
1788 prterr("docloseopen: close");
1789 report_failure(180);
1791 if (system("echo 3 > /proc/sys/vm/drop_caches")) {
1792 prterr("docloseopen: drop_caches");
1793 report_failure(181);
1795 fd = open(fname, O_RDWR|o_direct, 0);
1797 prterr("docloseopen: open");
1798 report_failure(182);
1807 if (testcalls <= simulatedopcount)
1810 prt("%lld fsync\n", testcalls);
1811 log4(OP_FSYNC, 0, 0, 0);
1815 report_failure(210);
1818 dump_fsync_buffer();
1822 #define TRIM_OFF(off, size) \
1830 #define TRIM_LEN(off, len, size) \
1832 if ((off) + (len) > (size)) \
1833 (len) = (size) - (off); \
1836 #define TRIM_OFF_LEN(off, len, size) \
1838 TRIM_OFF(off, size); \
1839 TRIM_LEN(off, len, size); \
1846 prt("signal %d\n", sig);
1847 prt("testcalls = %lld\n", testcalls);
1852 op_args_count(int operation)
1854 switch (operation) {
1855 case OP_CLONE_RANGE:
1856 case OP_DEDUPE_RANGE:
1865 read_op(struct log_entry *log_entry)
1869 memset(log_entry, 0, sizeof(*log_entry));
1870 log_entry->operation = -1;
1872 while (log_entry->operation == -1) {
1877 if (!fgets(line, sizeof(line), replayopsf)) {
1878 if (feof(replayopsf)) {
1884 str = strtok(line, " \t\n");
1885 } while (!str || str[0] == '#');
1887 if (strcmp(str, "skip") == 0) {
1888 log_entry->flags |= FL_SKIPPED;
1889 str = strtok(NULL, " \t\n");
1893 log_entry->operation = op_code(str);
1894 if (log_entry->operation == -1)
1896 log_entry->nr_args = op_args_count(log_entry->operation);
1897 for (i = 0; i < log_entry->nr_args; i++) {
1900 str = strtok(NULL, " \t\n");
1903 log_entry->args[i] = strtoul(str, &end, 0);
1907 while ((str = strtok(NULL, " \t\n"))) {
1908 if (strcmp(str, "keep_size") == 0)
1909 log_entry->flags |= FL_KEEP_SIZE;
1910 else if (strcmp(str, "close_open") == 0)
1911 log_entry->flags |= FL_CLOSE_OPEN;
1912 else if (strcmp(str, "*") == 0)
1913 ; /* overlap marker; ignore */
1921 fprintf(stderr, "%s: parse error\n", replayops);
1924 cleanup(100); /* doesn't return */
1934 return llabs((unsigned long long)off1 - off0) < size;
1937 static void generate_dest_range(bool bdy_align,
1938 unsigned long max_range_end,
1939 unsigned long *src_offset,
1940 unsigned long *size,
1941 unsigned long *dst_offset)
1945 TRIM_OFF_LEN(*src_offset, *size, file_size);
1947 *src_offset -= *src_offset % readbdy;
1949 *size -= *size % readbdy;
1951 *src_offset = *src_offset & ~(block_size - 1);
1952 *size = *size & ~(block_size - 1);
1956 if (tries++ >= 30) {
1960 *dst_offset = random();
1961 TRIM_OFF(*dst_offset, max_range_end);
1963 *dst_offset -= *dst_offset % writebdy;
1965 *dst_offset = *dst_offset & ~(block_size - 1);
1966 } while (range_overlaps(*src_offset, *dst_offset, *size) ||
1967 *dst_offset + *size > max_range_end);
1973 unsigned long offset, offset2;
1979 if (simulatedopcount > 0 && testcalls == simulatedopcount)
1984 if (debugstart > 0 && testcalls >= debugstart)
1987 if (!quiet && testcalls < simulatedopcount && testcalls % 100000 == 0)
1988 prt("%lld...\n", testcalls);
1991 struct log_entry log_entry;
1993 while (read_op(&log_entry)) {
1994 if (log_entry.flags & FL_SKIPPED) {
1995 log4(log_entry.operation,
1996 log_entry.args[0], log_entry.args[1],
2001 op = log_entry.operation;
2002 offset = log_entry.args[0];
2003 size = log_entry.args[1];
2004 offset2 = log_entry.args[2];
2005 closeopen = !!(log_entry.flags & FL_CLOSE_OPEN);
2006 keep_size = !!(log_entry.flags & FL_KEEP_SIZE);
2014 closeopen = (rv >> 3) < (1 << 28) / closeprob;
2020 size = random() % (maxoplen + 1);
2022 /* calculate appropriate op to run */
2024 op = rv % OP_MAX_LITE;
2025 else if (!integrity)
2026 op = rv % OP_MAX_FULL;
2028 op = rv % OP_MAX_INTEGRITY;
2033 size = random() % maxfilelen;
2036 if (fallocate_calls && size && keep_size_calls)
2037 keep_size = random() % 2;
2040 if (zero_range_calls && size && keep_size_calls)
2041 keep_size = random() % 2;
2043 case OP_CLONE_RANGE:
2044 generate_dest_range(false, maxfilelen, &offset, &size, &offset2);
2046 case OP_DEDUPE_RANGE:
2047 generate_dest_range(false, file_size, &offset, &size, &offset2);
2050 generate_dest_range(true, maxfilelen, &offset, &size, &offset2);
2066 if (!fallocate_calls) {
2067 log4(OP_FALLOCATE, offset, size, FL_SKIPPED);
2072 if (!punch_hole_calls) {
2073 log4(OP_PUNCH_HOLE, offset, size, FL_SKIPPED);
2078 if (!zero_range_calls) {
2079 log4(OP_ZERO_RANGE, offset, size, FL_SKIPPED);
2083 case OP_COLLAPSE_RANGE:
2084 if (!collapse_range_calls) {
2085 log4(OP_COLLAPSE_RANGE, offset, size, FL_SKIPPED);
2089 case OP_INSERT_RANGE:
2090 if (!insert_range_calls) {
2091 log4(OP_INSERT_RANGE, offset, size, FL_SKIPPED);
2095 case OP_CLONE_RANGE:
2096 if (!clone_range_calls) {
2097 log5(op, offset, size, offset2, FL_SKIPPED);
2101 case OP_DEDUPE_RANGE:
2102 if (!dedupe_range_calls) {
2103 log5(op, offset, size, offset2, FL_SKIPPED);
2108 if (!copy_range_calls) {
2109 log5(op, offset, size, offset2, FL_SKIPPED);
2117 TRIM_OFF_LEN(offset, size, file_size);
2118 doread(offset, size);
2122 TRIM_OFF_LEN(offset, size, maxfilelen);
2123 dowrite(offset, size);
2127 TRIM_OFF_LEN(offset, size, file_size);
2128 domapread(offset, size);
2132 TRIM_OFF_LEN(offset, size, maxfilelen);
2133 domapwrite(offset, size);
2141 TRIM_OFF_LEN(offset, size, maxfilelen);
2142 do_preallocate(offset, size, keep_size);
2146 TRIM_OFF_LEN(offset, size, file_size);
2147 do_punch_hole(offset, size);
2150 TRIM_OFF_LEN(offset, size, maxfilelen);
2151 do_zero_range(offset, size, keep_size);
2153 case OP_COLLAPSE_RANGE:
2154 TRIM_OFF_LEN(offset, size, file_size - 1);
2155 offset = offset & ~(block_size - 1);
2156 size = size & ~(block_size - 1);
2158 log4(OP_COLLAPSE_RANGE, offset, size, FL_SKIPPED);
2161 do_collapse_range(offset, size);
2163 case OP_INSERT_RANGE:
2164 TRIM_OFF(offset, file_size);
2165 TRIM_LEN(file_size, size, maxfilelen);
2166 offset = offset & ~(block_size - 1);
2167 size = size & ~(block_size - 1);
2169 log4(OP_INSERT_RANGE, offset, size, FL_SKIPPED);
2172 if (file_size + size > maxfilelen) {
2173 log4(OP_INSERT_RANGE, offset, size, FL_SKIPPED);
2177 do_insert_range(offset, size);
2179 case OP_CLONE_RANGE:
2181 log5(OP_CLONE_RANGE, offset, size, offset2, FL_SKIPPED);
2184 if (offset2 + size > maxfilelen) {
2185 log5(OP_CLONE_RANGE, offset, size, offset2, FL_SKIPPED);
2189 do_clone_range(offset, size, offset2);
2191 case OP_DEDUPE_RANGE:
2193 log5(OP_DEDUPE_RANGE, offset, size, offset2, FL_SKIPPED);
2196 if (offset2 + size > maxfilelen) {
2197 log5(OP_DEDUPE_RANGE, offset, size, offset2, FL_SKIPPED);
2201 do_dedupe_range(offset, size, offset2);
2205 log5(OP_COPY_RANGE, offset, size, offset2, FL_SKIPPED);
2208 if (offset2 + size > maxfilelen) {
2209 log5(OP_COPY_RANGE, offset, size, offset2, FL_SKIPPED);
2213 do_copy_range(offset, size, offset2);
2219 prterr("test: unknown operation");
2224 if (check_file && testcalls > simulatedopcount)
2230 if (sizechecks && testcalls > simulatedopcount)
2239 fprintf(stdout, "usage: %s",
2240 "fsx [-dknqxABEFJLOWZ] [-b opnum] [-c Prob] [-g filldata] [-i logdev] [-j logid] [-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\
2241 -b opnum: beginning operation number (default 1)\n\
2242 -c P: 1 in P chance of file close+open at each op (default infinity)\n\
2243 -d: debug output for all operations\n\
2244 -f flush and invalidate cache after I/O\n\
2245 -g X: write character X instead of random generated data\n\
2246 -i logdev: do integrity testing, logdev is the dm log writes device\n\
2247 -j logid: prefix debug log messsages with this id\n\
2248 -k: do not truncate existing file and use its size as upper bound on file size\n\
2249 -l flen: the upper bound on file size (default 262144)\n\
2250 -m startop:endop: monitor (print debug output) specified byte range (default 0:infinity)\n\
2251 -n: no verifications of file size\n\
2252 -o oplen: the upper bound on operation size (default 65536)\n\
2253 -p progressinterval: debug output at specified operation interval\n\
2254 -q: quieter operation\n\
2255 -r readbdy: 4096 would make reads page aligned (default 1)\n\
2256 -s style: 1 gives smaller truncates (default 0)\n\
2257 -t truncbdy: 4096 would make truncates page aligned (default 1)\n\
2258 -w writebdy: 4096 would make writes page aligned (default 1)\n\
2259 -x: preallocate file space before starting, XFS only (default 0)\n\
2260 -y synchronize changes to a file\n"
2263 " -A: Use the AIO system calls\n"
2265 " -D startingop: debug output starting at specified operation\n"
2266 #ifdef HAVE_LINUX_FALLOC_H
2267 " -F: Do not use fallocate (preallocation) calls\n"
2269 #ifdef FALLOC_FL_PUNCH_HOLE
2270 " -H: Do not use punch hole calls\n"
2272 #ifdef FALLOC_FL_ZERO_RANGE
2273 " -z: Do not use zero range calls\n"
2275 #ifdef FALLOC_FL_COLLAPSE_RANGE
2276 " -C: Do not use collapse range calls\n"
2278 #ifdef FALLOC_FL_INSERT_RANGE
2279 " -I: Do not use insert range calls\n"
2282 " -J: Do not use clone range calls\n"
2284 #ifdef FIDEDUPERANGE
2285 " -B: Do not use dedupe range calls\n"
2287 #ifdef HAVE_COPY_FILE_RANGE
2288 " -E: Do not use copy range calls\n"
2290 " -L: fsxLite - no file creations & no file size changes\n\
2291 -N numops: total # operations to do (default infinity)\n\
2292 -O: use oplen (see -o flag) for every op (default random)\n\
2293 -P: save .fsxlog .fsxops and .fsxgood files in dirpath (default ./)\n\
2294 -S seed: for random # generator (default 1) 0 gets timestamp\n\
2295 -W: mapped write operations DISabled\n\
2296 -X: Read file and compare to good buffer after every operation.\n\
2297 -R: read() system calls only (mapped reads disabled)\n\
2298 -Z: O_DIRECT (use -R, -W, -r and -w too)\n\
2299 --replay-ops opsfile: replay ops from recorded .fsxops file\n\
2300 --record-ops[=opsfile]: dump ops file also on success. optionally specify ops file name\n\
2301 fname: this filename is REQUIRED (no default)\n");
2307 getnum(char *s, char **e)
2312 ret = strtoll(s, e, 0);
2342 io_context_t io_ctx;
2349 ret = io_queue_init(QSZ, &io_ctx);
2351 fprintf(stderr, "aio_setup: io_queue_init failed: %s\n",
2359 aio_rw(int rw, int fd, char *buf, unsigned len, unsigned offset)
2361 struct io_event event;
2362 static struct timespec ts;
2363 struct iocb *iocbs[] = { &iocb };
2368 io_prep_pread(&iocb, fd, buf, len, offset);
2370 io_prep_pwrite(&iocb, fd, buf, len, offset);
2375 ret = io_submit(io_ctx, 1, iocbs);
2377 fprintf(stderr, "errcode=%d\n", ret);
2378 fprintf(stderr, "aio_rw: io_submit failed: %s\n",
2383 ret = io_getevents(io_ctx, 1, 1, &event, &ts);
2386 fprintf(stderr, "aio_rw: no events available\n");
2388 fprintf(stderr, "errcode=%d\n", -ret);
2389 fprintf(stderr, "aio_rw: io_getevents failed: %s\n",
2394 if (len != event.res) {
2396 * The b0rked libaio defines event.res as unsigned.
2397 * However the kernel strucuture has it signed,
2398 * and it's used to pass negated error value.
2399 * Till the library is fixed use the temp var.
2401 res = (long)event.res;
2403 fprintf(stderr, "bad io length: %lu instead of %u\n",
2406 fprintf(stderr, "errcode=%ld\n", -res);
2407 fprintf(stderr, "aio_rw: async io failed: %s\n",
2418 * The caller expects error return in traditional libc
2419 * convention, i.e. -1 and the errno set to error.
2425 aio_rw(int rw, int fd, char *buf, unsigned len, unsigned offset)
2427 fprintf(stderr, "io_rw: need AIO support!\n");
2433 fsx_rw(int rw, int fd, char *buf, unsigned len, unsigned offset)
2438 ret = aio_rw(rw, fd, buf, len, offset);
2441 ret = read(fd, buf, len);
2443 ret = write(fd, buf, len);
2448 #define test_fallocate(mode) __test_fallocate(mode, #mode)
2451 __test_fallocate(int mode, const char *mode_str)
2453 #ifdef HAVE_LINUX_FALLOC_H
2456 if (fallocate(fd, mode, file_size, 1) &&
2457 (errno == ENOSYS || errno == EOPNOTSUPP)) {
2460 "main: filesystem does not support "
2461 "fallocate mode %s, disabling!\n",
2465 if (ftruncate(fd, file_size)) {
2466 warn("main: ftruncate");
2475 static struct option longopts[] = {
2476 {"replay-ops", required_argument, 0, 256},
2477 {"record-ops", optional_argument, 0, 255},
2482 main(int argc, char **argv)
2486 char logfile[PATH_MAX];
2487 struct stat statbuf;
2488 int o_flags = O_RDWR|O_CREAT|O_TRUNC;
2493 page_size = getpagesize();
2494 page_mask = page_size - 1;
2495 mmap_mask = page_mask;
2498 setvbuf(stdout, (char *)0, _IOLBF, 0); /* line buffered stdout */
2500 while ((ch = getopt_long(argc, argv,
2501 "b:c:dfg:i:j:kl:m:no:p:qr:s:t:w:xyABD:EFJKHzCILN:OP:RS:WXZ",
2502 longopts, NULL)) != EOF)
2505 simulatedopcount = getnum(optarg, &endp);
2507 prt("Will begin at operation %lld\n",
2509 if (simulatedopcount == 0)
2511 simulatedopcount -= 1;
2514 closeprob = getnum(optarg, &endp);
2516 prt("Chance of close/open is 1 in %d\n", closeprob);
2531 logdev = strdup(optarg);
2538 logid = strdup(optarg);
2545 o_flags &= ~O_TRUNC;
2548 maxfilelen = getnum(optarg, &endp);
2549 if (maxfilelen <= 0)
2553 monitorstart = getnum(optarg, &endp);
2554 if (monitorstart < 0)
2556 if (!endp || *endp++ != ':')
2558 monitorend = getnum(endp, &endp);
2561 if (monitorend == 0)
2562 monitorend = -1; /* aka infinity */
2568 maxoplen = getnum(optarg, &endp);
2573 progressinterval = getnum(optarg, &endp);
2574 if (progressinterval == 0)
2581 readbdy = getnum(optarg, &endp);
2586 style = getnum(optarg, &endp);
2587 if (style < 0 || style > 1)
2591 truncbdy = getnum(optarg, &endp);
2596 writebdy = getnum(optarg, &endp);
2610 debugstart = getnum(optarg, &endp);
2615 fallocate_calls = 0;
2618 keep_size_calls = 0;
2621 punch_hole_calls = 0;
2624 zero_range_calls = 0;
2627 collapse_range_calls = 0;
2630 insert_range_calls = 0;
2633 clone_range_calls = 0;
2636 dedupe_range_calls = 0;
2639 copy_range_calls = 0;
2643 o_flags &= ~(O_CREAT|O_TRUNC);
2646 numops = getnum(optarg, &endp);
2654 strncpy(dname, optarg, sizeof(dname));
2656 dirpath = strlen(dname);
2662 seed = getnum(optarg, &endp);
2664 seed = time(0) % 10000;
2665 seed += (int)getpid();
2673 prt("mapped writes DISABLED\n");
2679 o_direct = O_DIRECT;
2680 o_flags |= O_DIRECT;
2682 case 255: /* --record-ops */
2684 strncpy(opsfile, optarg, sizeof(opsfile));
2685 recordops = opsfile;
2687 case 256: /* --replay-ops */
2699 if (integrity && !dirpath) {
2700 fprintf(stderr, "option -i <logdev> requires -P <dirpath>\n");
2705 tmp = strdup(fname);
2710 bname = basename(tmp);
2712 signal(SIGHUP, cleanup);
2713 signal(SIGINT, cleanup);
2714 signal(SIGPIPE, cleanup);
2715 signal(SIGALRM, cleanup);
2716 signal(SIGTERM, cleanup);
2717 signal(SIGXCPU, cleanup);
2718 signal(SIGXFSZ, cleanup);
2719 signal(SIGVTALRM, cleanup);
2720 signal(SIGUSR1, cleanup);
2721 signal(SIGUSR2, cleanup);
2724 prt("Seed set to %d\n", seed);
2726 fd = open(fname, o_flags, 0666);
2731 if (fstat(fd, &statbuf)) {
2732 prterr("check_size: fstat");
2735 block_size = statbuf.st_blksize;
2738 xfs_flock64_t resv = { 0 };
2739 #ifdef HAVE_XFS_PLATFORM_DEFS_H
2740 if (!platform_test_xfs_fd(fd)) {
2742 fprintf(stderr, "main: cannot prealloc, non XFS\n");
2746 resv.l_len = maxfilelen;
2747 if ((xfsctl(fname, fd, XFS_IOC_RESVSP, &resv)) < 0) {
2755 snprintf(goodfile, sizeof(goodfile), "%s%s.fsxgood", dname, bname);
2756 snprintf(logfile, sizeof(logfile), "%s%s.fsxlog", dname, bname);
2758 snprintf(opsfile, sizeof(opsfile), "%s%s.fsxops", dname, bname);
2760 snprintf(goodfile, sizeof(goodfile), "%s.fsxgood", fname);
2761 snprintf(logfile, sizeof(logfile), "%s.fsxlog", fname);
2763 snprintf(opsfile, sizeof(opsfile), "%s.fsxops", fname);
2765 fsxgoodfd = open(goodfile, O_RDWR|O_CREAT|O_TRUNC, 0666);
2766 if (fsxgoodfd < 0) {
2770 fsxlogf = fopen(logfile, "w");
2771 if (fsxlogf == NULL) {
2778 replayopsf = fopen(replayops, "r");
2790 if (!(o_flags & O_TRUNC)) {
2792 file_size = maxfilelen = biggest = lseek(fd, (off_t)0, SEEK_END);
2793 if (file_size == (off_t)-1) {
2795 warn("main: lseek eof");
2798 ret = lseek(fd, (off_t)0, SEEK_SET);
2799 if (ret == (off_t)-1) {
2801 warn("main: lseek 0");
2805 original_buf = (char *) malloc(maxfilelen);
2806 for (i = 0; i < maxfilelen; i++)
2807 original_buf[i] = random() % 256;
2808 good_buf = (char *) malloc(maxfilelen + writebdy);
2809 good_buf = round_ptr_up(good_buf, writebdy, 0);
2810 memset(good_buf, '\0', maxfilelen);
2811 temp_buf = (char *) malloc(maxoplen + readbdy);
2812 temp_buf = round_ptr_up(temp_buf, readbdy, 0);
2813 memset(temp_buf, '\0', maxoplen);
2814 if (lite) { /* zero entire existing file */
2817 written = write(fd, good_buf, (size_t)maxfilelen);
2818 if (written != maxfilelen) {
2819 if (written == -1) {
2821 warn("main: error on write");
2823 warn("main: short write, 0x%x bytes instead "
2830 ssize_t ret, len = file_size;
2834 ret = read(fd, good_buf + off, len);
2837 warn("main: error on read");
2847 if (fallocate_calls)
2848 fallocate_calls = test_fallocate(0);
2849 if (keep_size_calls)
2850 keep_size_calls = test_fallocate(FALLOC_FL_KEEP_SIZE);
2851 if (punch_hole_calls)
2852 punch_hole_calls = test_fallocate(FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE);
2853 if (zero_range_calls)
2854 zero_range_calls = test_fallocate(FALLOC_FL_ZERO_RANGE);
2855 if (collapse_range_calls)
2856 collapse_range_calls = test_fallocate(FALLOC_FL_COLLAPSE_RANGE);
2857 if (insert_range_calls)
2858 insert_range_calls = test_fallocate(FALLOC_FL_INSERT_RANGE);
2859 if (clone_range_calls)
2860 clone_range_calls = test_clone_range();
2861 if (dedupe_range_calls)
2862 dedupe_range_calls = test_dedupe_range();
2863 if (copy_range_calls)
2864 copy_range_calls = test_copy_range();
2866 while (numops == -1 || numops--)
2875 prt("All %lld operations completed A-OK!\n", testcalls);