2 * IO verification helpers
17 #include "crc/crc64.h"
18 #include "crc/crc32.h"
19 #include "crc/crc32c.h"
20 #include "crc/crc16.h"
22 #include "crc/sha256.h"
23 #include "crc/sha512.h"
26 static void populate_hdr(struct thread_data *td, struct io_u *io_u,
27 struct verify_header *hdr, unsigned int header_num,
28 unsigned int header_len);
30 void fill_pattern(struct thread_data *td, void *p, unsigned int len, struct io_u *io_u, unsigned long seed, int use_seed)
32 switch (td->o.verify_pattern_bytes) {
34 dprint(FD_VERIFY, "fill random bytes len=%u\n", len);
36 __fill_random_buf(p, len, seed);
38 io_u->rand_seed = fill_random_buf(p, len);
41 if (io_u->buf_filled_len >= len) {
42 dprint(FD_VERIFY, "using already filled verify pattern b=0 len=%u\n", len);
45 dprint(FD_VERIFY, "fill verify pattern b=0 len=%u\n", len);
46 memset(p, td->o.verify_pattern[0], len);
47 io_u->buf_filled_len = len;
50 unsigned int i = 0, size = 0;
53 if (io_u->buf_filled_len >= len) {
54 dprint(FD_VERIFY, "using already filled verify pattern b=%d len=%u\n",
55 td->o.verify_pattern_bytes, len);
58 dprint(FD_VERIFY, "fill verify pattern b=%d len=%u\n",
59 td->o.verify_pattern_bytes, len);
62 size = td->o.verify_pattern_bytes;
65 memcpy(b+i, td->o.verify_pattern, size);
68 io_u->buf_filled_len = len;
74 static void fill_pattern_headers(struct thread_data *td, struct io_u *io_u,
75 unsigned long seed, int use_seed)
77 unsigned int hdr_inc, header_num;
78 struct verify_header *hdr;
81 fill_pattern(td, p, io_u->buflen, io_u, seed, use_seed);
83 hdr_inc = io_u->buflen;
84 if (td->o.verify_interval)
85 hdr_inc = td->o.verify_interval;
88 for (; p < io_u->buf + io_u->buflen; p += hdr_inc) {
90 populate_hdr(td, io_u, hdr, header_num, hdr_inc);
95 static void memswp(void *buf1, void *buf2, unsigned int len)
99 assert(len <= sizeof(swap));
101 memcpy(&swap, buf1, len);
102 memcpy(buf1, buf2, len);
103 memcpy(buf2, &swap, len);
106 static void hexdump(void *buffer, int len)
108 unsigned char *p = buffer;
111 for (i = 0; i < len; i++)
112 log_err("%02x", p[i]);
117 * Prepare for seperation of verify_header and checksum header
119 static inline unsigned int __hdr_size(int verify_type)
121 unsigned int len = 0;
123 switch (verify_type) {
129 len = sizeof(struct vhdr_md5);
132 len = sizeof(struct vhdr_crc64);
136 case VERIFY_CRC32C_INTEL:
137 len = sizeof(struct vhdr_crc32);
140 len = sizeof(struct vhdr_crc16);
143 len = sizeof(struct vhdr_crc7);
146 len = sizeof(struct vhdr_sha256);
149 len = sizeof(struct vhdr_sha512);
152 len = sizeof(struct vhdr_meta);
155 len = sizeof(struct vhdr_sha1);
158 log_err("fio: unknown verify header!\n");
162 return len + sizeof(struct verify_header);
165 static inline unsigned int hdr_size(struct verify_header *hdr)
167 return __hdr_size(hdr->verify_type);
170 static void *hdr_priv(struct verify_header *hdr)
174 return priv + sizeof(struct verify_header);
178 * Verify container, pass info to verify handlers and allow them to
179 * pass info back in case of error
186 unsigned int hdr_num;
187 struct thread_data *td;
190 * Output, only valid in case of error
195 unsigned int crc_len;
198 static void dump_buf(char *buf, unsigned int len, unsigned long long offset,
199 const char *type, struct fio_file *f)
201 char *ptr, fname[256];
204 ptr = strdup(f->file_name);
205 strcpy(fname, basename(ptr));
207 sprintf(fname + strlen(fname), ".%llu.%s", offset, type);
209 fd = open(fname, O_CREAT | O_TRUNC | O_WRONLY, 0644);
211 perror("open verify buf file");
216 ret = write(fd, buf, len);
220 perror("write verify buf file");
228 log_err(" %s data dumped as %s\n", type, fname);
233 * Dump the contents of the read block and re-generate the correct data
236 static void dump_verify_buffers(struct verify_header *hdr, struct vcont *vc)
238 struct thread_data *td = vc->td;
239 struct io_u *io_u = vc->io_u;
240 unsigned long hdr_offset;
245 * Dump the contents we just read off disk
247 hdr_offset = vc->hdr_num * hdr->len;
249 dump_buf(io_u->buf + hdr_offset, hdr->len, io_u->offset + hdr_offset,
250 "received", vc->io_u->file);
253 * Allocate a new buf and re-generate the original data
255 buf = malloc(io_u->buflen);
258 dummy.rand_seed = hdr->rand_seed;
260 fill_pattern_headers(td, &dummy, hdr->rand_seed, 1);
262 dump_buf(buf + hdr_offset, hdr->len, io_u->offset + hdr_offset,
263 "expected", vc->io_u->file);
267 static void log_verify_failure(struct verify_header *hdr, struct vcont *vc)
269 unsigned long long offset;
271 offset = vc->io_u->offset;
272 offset += vc->hdr_num * hdr->len;
273 log_err("%.8s: verify failed at file %s offset %llu, length %u\n",
274 vc->name, vc->io_u->file->file_name, offset, hdr->len);
276 if (vc->good_crc && vc->bad_crc) {
277 log_err(" Expected CRC: ");
278 hexdump(vc->good_crc, vc->crc_len);
279 log_err(" Received CRC: ");
280 hexdump(vc->bad_crc, vc->crc_len);
283 dump_verify_buffers(hdr, vc);
287 * Return data area 'header_num'
289 static inline void *io_u_verify_off(struct verify_header *hdr, struct vcont *vc)
291 return vc->io_u->buf + vc->hdr_num * hdr->len + hdr_size(hdr);
294 static int verify_io_u_meta(struct verify_header *hdr, struct thread_data *td,
297 struct vhdr_meta *vh = hdr_priv(hdr);
298 struct io_u *io_u = vc->io_u;
300 dprint(FD_VERIFY, "meta verify io_u %p, len %u\n", io_u, hdr->len);
302 if (vh->offset == io_u->offset + vc->hdr_num * td->o.verify_interval)
306 log_verify_failure(hdr, vc);
310 static int verify_io_u_sha512(struct verify_header *hdr, struct vcont *vc)
312 void *p = io_u_verify_off(hdr, vc);
313 struct vhdr_sha512 *vh = hdr_priv(hdr);
315 struct sha512_ctx sha512_ctx = {
319 dprint(FD_VERIFY, "sha512 verify io_u %p, len %u\n", vc->io_u, hdr->len);
321 sha512_init(&sha512_ctx);
322 sha512_update(&sha512_ctx, p, hdr->len - hdr_size(hdr));
324 if (!memcmp(vh->sha512, sha512_ctx.buf, sizeof(sha512)))
328 vc->good_crc = vh->sha512;
329 vc->bad_crc = sha512_ctx.buf;
330 vc->crc_len = sizeof(vh->sha512);
331 log_verify_failure(hdr, vc);
335 static int verify_io_u_sha256(struct verify_header *hdr, struct vcont *vc)
337 void *p = io_u_verify_off(hdr, vc);
338 struct vhdr_sha256 *vh = hdr_priv(hdr);
340 struct sha256_ctx sha256_ctx = {
344 dprint(FD_VERIFY, "sha256 verify io_u %p, len %u\n", vc->io_u, hdr->len);
346 sha256_init(&sha256_ctx);
347 sha256_update(&sha256_ctx, p, hdr->len - hdr_size(hdr));
349 if (!memcmp(vh->sha256, sha256_ctx.buf, sizeof(sha256)))
353 vc->good_crc = vh->sha256;
354 vc->bad_crc = sha256_ctx.buf;
355 vc->crc_len = sizeof(vh->sha256);
356 log_verify_failure(hdr, vc);
360 static int verify_io_u_sha1(struct verify_header *hdr, struct vcont *vc)
362 void *p = io_u_verify_off(hdr, vc);
363 struct vhdr_sha1 *vh = hdr_priv(hdr);
365 struct sha1_ctx sha1_ctx = {
369 dprint(FD_VERIFY, "sha1 verify io_u %p, len %u\n", vc->io_u, hdr->len);
371 sha1_init(&sha1_ctx);
372 sha1_update(&sha1_ctx, p, hdr->len - hdr_size(hdr));
374 if (!memcmp(vh->sha1, sha1_ctx.H, sizeof(sha1)))
378 vc->good_crc = vh->sha1;
379 vc->bad_crc = sha1_ctx.H;
380 vc->crc_len = sizeof(vh->sha1);
381 log_verify_failure(hdr, vc);
385 static int verify_io_u_crc7(struct verify_header *hdr, struct vcont *vc)
387 void *p = io_u_verify_off(hdr, vc);
388 struct vhdr_crc7 *vh = hdr_priv(hdr);
391 dprint(FD_VERIFY, "crc7 verify io_u %p, len %u\n", vc->io_u, hdr->len);
393 c = crc7(p, hdr->len - hdr_size(hdr));
399 vc->good_crc = &vh->crc7;
402 log_verify_failure(hdr, vc);
406 static int verify_io_u_crc16(struct verify_header *hdr, struct vcont *vc)
408 void *p = io_u_verify_off(hdr, vc);
409 struct vhdr_crc16 *vh = hdr_priv(hdr);
412 dprint(FD_VERIFY, "crc16 verify io_u %p, len %u\n", vc->io_u, hdr->len);
414 c = crc16(p, hdr->len - hdr_size(hdr));
420 vc->good_crc = &vh->crc16;
423 log_verify_failure(hdr, vc);
427 static int verify_io_u_crc64(struct verify_header *hdr, struct vcont *vc)
429 void *p = io_u_verify_off(hdr, vc);
430 struct vhdr_crc64 *vh = hdr_priv(hdr);
431 unsigned long long c;
433 dprint(FD_VERIFY, "crc64 verify io_u %p, len %u\n", vc->io_u, hdr->len);
435 c = crc64(p, hdr->len - hdr_size(hdr));
441 vc->good_crc = &vh->crc64;
444 log_verify_failure(hdr, vc);
448 static int verify_io_u_crc32(struct verify_header *hdr, struct vcont *vc)
450 void *p = io_u_verify_off(hdr, vc);
451 struct vhdr_crc32 *vh = hdr_priv(hdr);
454 dprint(FD_VERIFY, "crc32 verify io_u %p, len %u\n", vc->io_u, hdr->len);
456 c = crc32(p, hdr->len - hdr_size(hdr));
462 vc->good_crc = &vh->crc32;
465 log_verify_failure(hdr, vc);
469 static int verify_io_u_crc32c(struct verify_header *hdr, struct vcont *vc)
471 void *p = io_u_verify_off(hdr, vc);
472 struct vhdr_crc32 *vh = hdr_priv(hdr);
475 dprint(FD_VERIFY, "crc32c verify io_u %p, len %u\n", vc->io_u, hdr->len);
477 if (hdr->verify_type == VERIFY_CRC32C_INTEL)
478 c = crc32c_intel(p, hdr->len - hdr_size(hdr));
480 c = crc32c(p, hdr->len - hdr_size(hdr));
486 vc->good_crc = &vh->crc32;
489 log_verify_failure(hdr, vc);
493 static int verify_io_u_md5(struct verify_header *hdr, struct vcont *vc)
495 void *p = io_u_verify_off(hdr, vc);
496 struct vhdr_md5 *vh = hdr_priv(hdr);
497 uint32_t hash[MD5_HASH_WORDS];
498 struct md5_ctx md5_ctx = {
502 dprint(FD_VERIFY, "md5 verify io_u %p, len %u\n", vc->io_u, hdr->len);
505 md5_update(&md5_ctx, p, hdr->len - hdr_size(hdr));
507 if (!memcmp(vh->md5_digest, md5_ctx.hash, sizeof(hash)))
511 vc->good_crc = vh->md5_digest;
512 vc->bad_crc = md5_ctx.hash;
513 vc->crc_len = sizeof(hash);
514 log_verify_failure(hdr, vc);
518 static unsigned int hweight8(unsigned int w)
520 unsigned int res = w - ((w >> 1) & 0x55);
522 res = (res & 0x33) + ((res >> 2) & 0x33);
523 return (res + (res >> 4)) & 0x0F;
526 int verify_io_u_pattern(char *pattern, unsigned long pattern_size,
527 char *buf, unsigned int len, unsigned int mod)
531 for (i = 0; i < len; i++) {
532 if (buf[i] != pattern[mod]) {
535 bits = hweight8(buf[i] ^ pattern[mod]);
536 log_err("fio: got pattern %x, wanted %x. Bad bits %d\n",
537 buf[i], pattern[mod], bits);
538 log_err("fio: bad pattern block offset %u\n", i);
542 if (mod == pattern_size)
550 * Push IO verification to a separate thread
552 int verify_io_u_async(struct thread_data *td, struct io_u *io_u)
555 put_file_log(td, io_u->file);
559 pthread_mutex_lock(&td->io_u_lock);
561 if (io_u->flags & IO_U_F_IN_CUR_DEPTH) {
563 io_u->flags &= ~IO_U_F_IN_CUR_DEPTH;
565 flist_del(&io_u->list);
566 flist_add_tail(&io_u->list, &td->verify_list);
567 io_u->flags |= IO_U_F_FREE_DEF;
568 pthread_mutex_unlock(&td->io_u_lock);
570 pthread_cond_signal(&td->verify_cond);
574 static int verify_trimmed_io_u(struct thread_data *td, struct io_u *io_u)
576 static char zero_buf[1024];
577 unsigned int this_len, len;
581 if (!td->o.trim_zero)
587 this_len = sizeof(zero_buf);
590 if (memcmp(p, zero_buf, this_len)) {
601 log_err("trim: verify failed at file %s offset %llu, length %lu"
602 ", block offset %lu\n",
603 io_u->file->file_name, io_u->offset, io_u->buflen,
604 (unsigned long) (p - io_u->buf));
608 int verify_io_u(struct thread_data *td, struct io_u *io_u)
610 struct verify_header *hdr;
611 unsigned int hdr_size, hdr_inc, hdr_num = 0;
615 if (td->o.verify == VERIFY_NULL || io_u->ddir != DDIR_READ)
617 if (io_u->flags & IO_U_F_TRIMMED) {
618 ret = verify_trimmed_io_u(td, io_u);
622 hdr_inc = io_u->buflen;
623 if (td->o.verify_interval)
624 hdr_inc = td->o.verify_interval;
627 for (p = io_u->buf; p < io_u->buf + io_u->buflen;
628 p += hdr_inc, hdr_num++) {
635 if (ret && td->o.verify_fatal)
638 hdr_size = __hdr_size(td->o.verify);
639 if (td->o.verify_offset)
640 memswp(p, p + td->o.verify_offset, hdr_size);
643 if (hdr->fio_magic != FIO_HDR_MAGIC) {
644 log_err("verify: bad magic header %x, wanted %x at file %s offset %llu, length %u\n",
645 hdr->fio_magic, FIO_HDR_MAGIC,
646 io_u->file->file_name,
647 io_u->offset + hdr_num * hdr->len, hdr->len);
651 if (td->o.verify_pattern_bytes) {
652 dprint(FD_VERIFY, "pattern verify io_u %p, len %u\n",
654 ret = verify_io_u_pattern(td->o.verify_pattern,
655 td->o.verify_pattern_bytes,
658 hdr_size % td->o.verify_pattern_bytes);
661 log_err("pattern: verify failed at file %s offset %llu, length %u\n",
662 io_u->file->file_name,
663 io_u->offset + hdr_num * hdr->len,
668 * Also verify the meta data, if applicable
670 if (hdr->verify_type == VERIFY_META)
671 ret |= verify_io_u_meta(hdr, td, &vc);
675 switch (hdr->verify_type) {
677 ret = verify_io_u_md5(hdr, &vc);
680 ret = verify_io_u_crc64(hdr, &vc);
683 case VERIFY_CRC32C_INTEL:
684 ret = verify_io_u_crc32c(hdr, &vc);
687 ret = verify_io_u_crc32(hdr, &vc);
690 ret = verify_io_u_crc16(hdr, &vc);
693 ret = verify_io_u_crc7(hdr, &vc);
696 ret = verify_io_u_sha256(hdr, &vc);
699 ret = verify_io_u_sha512(hdr, &vc);
702 ret = verify_io_u_meta(hdr, td, &vc);
705 ret = verify_io_u_sha1(hdr, &vc);
708 log_err("Bad verify type %u\n", hdr->verify_type);
714 if (ret && td->o.verify_fatal)
720 static void fill_meta(struct verify_header *hdr, struct thread_data *td,
721 struct io_u *io_u, unsigned int header_num)
723 struct vhdr_meta *vh = hdr_priv(hdr);
725 vh->thread = td->thread_number;
727 vh->time_sec = io_u->start_time.tv_sec;
728 vh->time_usec = io_u->start_time.tv_usec;
730 vh->numberio = td->io_issues[DDIR_WRITE];
732 vh->offset = io_u->offset + header_num * td->o.verify_interval;
735 static void fill_sha512(struct verify_header *hdr, void *p, unsigned int len)
737 struct vhdr_sha512 *vh = hdr_priv(hdr);
738 struct sha512_ctx sha512_ctx = {
742 sha512_init(&sha512_ctx);
743 sha512_update(&sha512_ctx, p, len);
746 static void fill_sha256(struct verify_header *hdr, void *p, unsigned int len)
748 struct vhdr_sha256 *vh = hdr_priv(hdr);
749 struct sha256_ctx sha256_ctx = {
753 sha256_init(&sha256_ctx);
754 sha256_update(&sha256_ctx, p, len);
757 static void fill_sha1(struct verify_header *hdr, void *p, unsigned int len)
759 struct vhdr_sha1 *vh = hdr_priv(hdr);
760 struct sha1_ctx sha1_ctx = {
764 sha1_init(&sha1_ctx);
765 sha1_update(&sha1_ctx, p, len);
768 static void fill_crc7(struct verify_header *hdr, void *p, unsigned int len)
770 struct vhdr_crc7 *vh = hdr_priv(hdr);
772 vh->crc7 = crc7(p, len);
775 static void fill_crc16(struct verify_header *hdr, void *p, unsigned int len)
777 struct vhdr_crc16 *vh = hdr_priv(hdr);
779 vh->crc16 = crc16(p, len);
782 static void fill_crc32(struct verify_header *hdr, void *p, unsigned int len)
784 struct vhdr_crc32 *vh = hdr_priv(hdr);
786 vh->crc32 = crc32(p, len);
789 static void fill_crc32c(struct verify_header *hdr, void *p, unsigned int len)
791 struct vhdr_crc32 *vh = hdr_priv(hdr);
793 if (hdr->verify_type == VERIFY_CRC32C_INTEL)
794 vh->crc32 = crc32c_intel(p, len);
796 vh->crc32 = crc32c(p, len);
799 static void fill_crc64(struct verify_header *hdr, void *p, unsigned int len)
801 struct vhdr_crc64 *vh = hdr_priv(hdr);
803 vh->crc64 = crc64(p, len);
806 static void fill_md5(struct verify_header *hdr, void *p, unsigned int len)
808 struct vhdr_md5 *vh = hdr_priv(hdr);
809 struct md5_ctx md5_ctx = {
810 .hash = (uint32_t *) vh->md5_digest,
814 md5_update(&md5_ctx, p, len);
817 static void populate_hdr(struct thread_data *td, struct io_u *io_u,
818 struct verify_header *hdr, unsigned int header_num,
819 unsigned int header_len)
821 unsigned int data_len;
826 hdr->fio_magic = FIO_HDR_MAGIC;
827 hdr->len = header_len;
828 hdr->verify_type = td->o.verify;
829 hdr->rand_seed = io_u->rand_seed;
830 data_len = header_len - hdr_size(hdr);
832 data = p + hdr_size(hdr);
833 switch (td->o.verify) {
835 dprint(FD_VERIFY, "fill md5 io_u %p, len %u\n",
837 fill_md5(hdr, data, data_len);
840 dprint(FD_VERIFY, "fill crc64 io_u %p, len %u\n",
842 fill_crc64(hdr, data, data_len);
845 case VERIFY_CRC32C_INTEL:
846 dprint(FD_VERIFY, "fill crc32c io_u %p, len %u\n",
848 fill_crc32c(hdr, data, data_len);
851 dprint(FD_VERIFY, "fill crc32 io_u %p, len %u\n",
853 fill_crc32(hdr, data, data_len);
856 dprint(FD_VERIFY, "fill crc16 io_u %p, len %u\n",
858 fill_crc16(hdr, data, data_len);
861 dprint(FD_VERIFY, "fill crc7 io_u %p, len %u\n",
863 fill_crc7(hdr, data, data_len);
866 dprint(FD_VERIFY, "fill sha256 io_u %p, len %u\n",
868 fill_sha256(hdr, data, data_len);
871 dprint(FD_VERIFY, "fill sha512 io_u %p, len %u\n",
873 fill_sha512(hdr, data, data_len);
876 dprint(FD_VERIFY, "fill meta io_u %p, len %u\n",
878 fill_meta(hdr, td, io_u, header_num);
881 dprint(FD_VERIFY, "fill sha1 io_u %p, len %u\n",
883 fill_sha1(hdr, data, data_len);
886 log_err("fio: bad verify type: %d\n", td->o.verify);
889 if (td->o.verify_offset)
890 memswp(p, p + td->o.verify_offset, hdr_size(hdr));
894 * fill body of io_u->buf with random data and add a header with the
897 void populate_verify_io_u(struct thread_data *td, struct io_u *io_u)
899 if (td->o.verify == VERIFY_NULL)
902 fill_pattern_headers(td, io_u, 0, 0);
905 int get_next_verify(struct thread_data *td, struct io_u *io_u)
907 struct io_piece *ipo = NULL;
910 * this io_u is from a requeue, we already filled the offsets
915 if (!RB_EMPTY_ROOT(&td->io_hist_tree)) {
916 struct rb_node *n = rb_first(&td->io_hist_tree);
918 ipo = rb_entry(n, struct io_piece, rb_node);
919 rb_erase(n, &td->io_hist_tree);
920 assert(ipo->flags & IP_F_ONRB);
921 ipo->flags &= ~IP_F_ONRB;
922 } else if (!flist_empty(&td->io_hist_list)) {
923 ipo = flist_entry(td->io_hist_list.next, struct io_piece, list);
924 flist_del(&ipo->list);
925 assert(ipo->flags & IP_F_ONLIST);
926 ipo->flags &= ~IP_F_ONLIST;
932 io_u->offset = ipo->offset;
933 io_u->buflen = ipo->len;
934 io_u->file = ipo->file;
936 if (ipo->flags & IP_F_TRIMMED)
937 io_u->flags |= IO_U_F_TRIMMED;
939 if (!fio_file_open(io_u->file)) {
940 int r = td_io_open_file(td, io_u->file);
943 dprint(FD_VERIFY, "failed file %s open\n",
944 io_u->file->file_name);
950 assert(fio_file_open(io_u->file));
951 io_u->ddir = DDIR_READ;
952 io_u->xfer_buf = io_u->buf;
953 io_u->xfer_buflen = io_u->buflen;
955 remove_trim_entry(td, ipo);
957 dprint(FD_VERIFY, "get_next_verify: ret io_u %p\n", io_u);
961 dprint(FD_VERIFY, "get_next_verify: empty\n");
965 static void *verify_async_thread(void *data)
967 struct thread_data *td = data;
971 if (td->o.verify_cpumask_set &&
972 fio_setaffinity(td->pid, td->o.verify_cpumask)) {
973 log_err("fio: failed setting verify thread affinity\n");
981 if (td->verify_thread_exit)
984 pthread_mutex_lock(&td->io_u_lock);
986 while (flist_empty(&td->verify_list) &&
987 !td->verify_thread_exit) {
988 ret = pthread_cond_wait(&td->verify_cond,
991 pthread_mutex_unlock(&td->io_u_lock);
996 flist_splice_init(&td->verify_list, &list);
997 pthread_mutex_unlock(&td->io_u_lock);
999 if (flist_empty(&list))
1002 while (!flist_empty(&list)) {
1003 io_u = flist_entry(list.next, struct io_u, list);
1004 flist_del_init(&io_u->list);
1006 ret = verify_io_u(td, io_u);
1010 if (td->o.continue_on_error &&
1011 td_non_fatal_error(ret)) {
1012 update_error_count(td, ret);
1020 td_verror(td, ret, "async_verify");
1021 if (td->o.verify_fatal)
1026 pthread_mutex_lock(&td->io_u_lock);
1027 td->nr_verify_threads--;
1028 pthread_mutex_unlock(&td->io_u_lock);
1030 pthread_cond_signal(&td->free_cond);
1034 int verify_async_init(struct thread_data *td)
1037 pthread_attr_t attr;
1039 pthread_attr_init(&attr);
1040 pthread_attr_setstacksize(&attr, PTHREAD_STACK_MIN);
1042 td->verify_thread_exit = 0;
1044 td->verify_threads = malloc(sizeof(pthread_t) * td->o.verify_async);
1045 for (i = 0; i < td->o.verify_async; i++) {
1046 ret = pthread_create(&td->verify_threads[i], &attr,
1047 verify_async_thread, td);
1049 log_err("fio: async verify creation failed: %s\n",
1053 ret = pthread_detach(td->verify_threads[i]);
1055 log_err("fio: async verify thread detach failed: %s\n",
1059 td->nr_verify_threads++;
1062 pthread_attr_destroy(&attr);
1064 if (i != td->o.verify_async) {
1065 log_err("fio: only %d verify threads started, exiting\n", i);
1066 td->verify_thread_exit = 1;
1068 pthread_cond_broadcast(&td->verify_cond);
1075 void verify_async_exit(struct thread_data *td)
1077 td->verify_thread_exit = 1;
1079 pthread_cond_broadcast(&td->verify_cond);
1081 pthread_mutex_lock(&td->io_u_lock);
1083 while (td->nr_verify_threads)
1084 pthread_cond_wait(&td->free_cond, &td->io_u_lock);
1086 pthread_mutex_unlock(&td->io_u_lock);
1087 free(td->verify_threads);
1088 td->verify_threads = NULL;