2 * IO verification helpers
18 #include "crc/crc64.h"
19 #include "crc/crc32.h"
20 #include "crc/crc32c.h"
21 #include "crc/crc16.h"
23 #include "crc/sha256.h"
24 #include "crc/sha512.h"
27 static void populate_hdr(struct thread_data *td, struct io_u *io_u,
28 struct verify_header *hdr, unsigned int header_num,
29 unsigned int header_len);
31 void fill_pattern(struct thread_data *td, void *p, unsigned int len, struct io_u *io_u, unsigned long seed, int use_seed)
33 switch (td->o.verify_pattern_bytes) {
35 dprint(FD_VERIFY, "fill random bytes len=%u\n", len);
37 __fill_random_buf(p, len, seed);
39 io_u->rand_seed = fill_random_buf(p, len);
42 if (io_u->buf_filled_len >= len) {
43 dprint(FD_VERIFY, "using already filled verify pattern b=0 len=%u\n", len);
46 dprint(FD_VERIFY, "fill verify pattern b=0 len=%u\n", len);
47 memset(p, td->o.verify_pattern[0], len);
48 io_u->buf_filled_len = len;
51 unsigned int i = 0, size = 0;
54 if (io_u->buf_filled_len >= len) {
55 dprint(FD_VERIFY, "using already filled verify pattern b=%d len=%u\n",
56 td->o.verify_pattern_bytes, len);
59 dprint(FD_VERIFY, "fill verify pattern b=%d len=%u\n",
60 td->o.verify_pattern_bytes, len);
63 size = td->o.verify_pattern_bytes;
66 memcpy(b+i, td->o.verify_pattern, size);
69 io_u->buf_filled_len = len;
75 static unsigned int get_hdr_inc(struct thread_data *td, struct io_u *io_u)
79 hdr_inc = io_u->buflen;
80 if (td->o.verify_interval)
81 hdr_inc = td->o.verify_interval;
86 static void fill_pattern_headers(struct thread_data *td, struct io_u *io_u,
87 unsigned long seed, int use_seed)
89 unsigned int hdr_inc, header_num;
90 struct verify_header *hdr;
93 fill_pattern(td, p, io_u->buflen, io_u, seed, use_seed);
95 hdr_inc = get_hdr_inc(td, io_u);
97 for (; p < io_u->buf + io_u->buflen; p += hdr_inc) {
99 populate_hdr(td, io_u, hdr, header_num, hdr_inc);
104 static void memswp(void *buf1, void *buf2, unsigned int len)
108 assert(len <= sizeof(swap));
110 memcpy(&swap, buf1, len);
111 memcpy(buf1, buf2, len);
112 memcpy(buf2, &swap, len);
115 static void hexdump(void *buffer, int len)
117 unsigned char *p = buffer;
120 for (i = 0; i < len; i++)
121 log_err("%02x", p[i]);
126 * Prepare for seperation of verify_header and checksum header
128 static inline unsigned int __hdr_size(int verify_type)
130 unsigned int len = 0;
132 switch (verify_type) {
138 len = sizeof(struct vhdr_md5);
141 len = sizeof(struct vhdr_crc64);
145 case VERIFY_CRC32C_INTEL:
146 len = sizeof(struct vhdr_crc32);
149 len = sizeof(struct vhdr_crc16);
152 len = sizeof(struct vhdr_crc7);
155 len = sizeof(struct vhdr_sha256);
158 len = sizeof(struct vhdr_sha512);
161 len = sizeof(struct vhdr_meta);
164 len = sizeof(struct vhdr_sha1);
167 log_err("fio: unknown verify header!\n");
171 return len + sizeof(struct verify_header);
174 static inline unsigned int hdr_size(struct verify_header *hdr)
176 return __hdr_size(hdr->verify_type);
179 static void *hdr_priv(struct verify_header *hdr)
183 return priv + sizeof(struct verify_header);
187 * Verify container, pass info to verify handlers and allow them to
188 * pass info back in case of error
195 unsigned int hdr_num;
196 struct thread_data *td;
199 * Output, only valid in case of error
204 unsigned int crc_len;
207 static void dump_buf(char *buf, unsigned int len, unsigned long long offset,
208 const char *type, struct fio_file *f)
210 char *ptr, fname[256];
213 ptr = strdup(f->file_name);
214 strcpy(fname, basename(ptr));
216 sprintf(fname + strlen(fname), ".%llu.%s", offset, type);
218 fd = open(fname, O_CREAT | O_TRUNC | O_WRONLY, 0644);
220 perror("open verify buf file");
225 ret = write(fd, buf, len);
229 perror("write verify buf file");
237 log_err(" %s data dumped as %s\n", type, fname);
242 * Dump the contents of the read block and re-generate the correct data
245 static void dump_verify_buffers(struct verify_header *hdr, struct vcont *vc)
247 struct thread_data *td = vc->td;
248 struct io_u *io_u = vc->io_u;
249 unsigned long hdr_offset;
254 * Dump the contents we just read off disk
256 hdr_offset = vc->hdr_num * hdr->len;
258 dump_buf(io_u->buf + hdr_offset, hdr->len, io_u->offset + hdr_offset,
259 "received", vc->io_u->file);
262 * Allocate a new buf and re-generate the original data
264 buf = malloc(io_u->buflen);
267 dummy.rand_seed = hdr->rand_seed;
268 dummy.buf_filled_len = 0;
270 fill_pattern_headers(td, &dummy, hdr->rand_seed, 1);
272 dump_buf(buf + hdr_offset, hdr->len, io_u->offset + hdr_offset,
273 "expected", vc->io_u->file);
277 static void log_verify_failure(struct verify_header *hdr, struct vcont *vc)
279 unsigned long long offset;
281 offset = vc->io_u->offset;
282 offset += vc->hdr_num * hdr->len;
283 log_err("%.8s: verify failed at file %s offset %llu, length %u\n",
284 vc->name, vc->io_u->file->file_name, offset, hdr->len);
286 if (vc->good_crc && vc->bad_crc) {
287 log_err(" Expected CRC: ");
288 hexdump(vc->good_crc, vc->crc_len);
289 log_err(" Received CRC: ");
290 hexdump(vc->bad_crc, vc->crc_len);
293 dump_verify_buffers(hdr, vc);
297 * Return data area 'header_num'
299 static inline void *io_u_verify_off(struct verify_header *hdr, struct vcont *vc)
301 return vc->io_u->buf + vc->hdr_num * hdr->len + hdr_size(hdr);
304 static int verify_io_u_meta(struct verify_header *hdr, struct thread_data *td,
307 struct vhdr_meta *vh = hdr_priv(hdr);
308 struct io_u *io_u = vc->io_u;
310 dprint(FD_VERIFY, "meta verify io_u %p, len %u\n", io_u, hdr->len);
312 if (vh->offset == io_u->offset + vc->hdr_num * td->o.verify_interval)
316 log_verify_failure(hdr, vc);
320 static int verify_io_u_sha512(struct verify_header *hdr, struct vcont *vc)
322 void *p = io_u_verify_off(hdr, vc);
323 struct vhdr_sha512 *vh = hdr_priv(hdr);
325 struct sha512_ctx sha512_ctx = {
329 dprint(FD_VERIFY, "sha512 verify io_u %p, len %u\n", vc->io_u, hdr->len);
331 sha512_init(&sha512_ctx);
332 sha512_update(&sha512_ctx, p, hdr->len - hdr_size(hdr));
334 if (!memcmp(vh->sha512, sha512_ctx.buf, sizeof(sha512)))
338 vc->good_crc = vh->sha512;
339 vc->bad_crc = sha512_ctx.buf;
340 vc->crc_len = sizeof(vh->sha512);
341 log_verify_failure(hdr, vc);
345 static int verify_io_u_sha256(struct verify_header *hdr, struct vcont *vc)
347 void *p = io_u_verify_off(hdr, vc);
348 struct vhdr_sha256 *vh = hdr_priv(hdr);
350 struct sha256_ctx sha256_ctx = {
354 dprint(FD_VERIFY, "sha256 verify io_u %p, len %u\n", vc->io_u, hdr->len);
356 sha256_init(&sha256_ctx);
357 sha256_update(&sha256_ctx, p, hdr->len - hdr_size(hdr));
359 if (!memcmp(vh->sha256, sha256_ctx.buf, sizeof(sha256)))
363 vc->good_crc = vh->sha256;
364 vc->bad_crc = sha256_ctx.buf;
365 vc->crc_len = sizeof(vh->sha256);
366 log_verify_failure(hdr, vc);
370 static int verify_io_u_sha1(struct verify_header *hdr, struct vcont *vc)
372 void *p = io_u_verify_off(hdr, vc);
373 struct vhdr_sha1 *vh = hdr_priv(hdr);
375 struct sha1_ctx sha1_ctx = {
379 dprint(FD_VERIFY, "sha1 verify io_u %p, len %u\n", vc->io_u, hdr->len);
381 sha1_init(&sha1_ctx);
382 sha1_update(&sha1_ctx, p, hdr->len - hdr_size(hdr));
384 if (!memcmp(vh->sha1, sha1_ctx.H, sizeof(sha1)))
388 vc->good_crc = vh->sha1;
389 vc->bad_crc = sha1_ctx.H;
390 vc->crc_len = sizeof(vh->sha1);
391 log_verify_failure(hdr, vc);
395 static int verify_io_u_crc7(struct verify_header *hdr, struct vcont *vc)
397 void *p = io_u_verify_off(hdr, vc);
398 struct vhdr_crc7 *vh = hdr_priv(hdr);
401 dprint(FD_VERIFY, "crc7 verify io_u %p, len %u\n", vc->io_u, hdr->len);
403 c = crc7(p, hdr->len - hdr_size(hdr));
409 vc->good_crc = &vh->crc7;
412 log_verify_failure(hdr, vc);
416 static int verify_io_u_crc16(struct verify_header *hdr, struct vcont *vc)
418 void *p = io_u_verify_off(hdr, vc);
419 struct vhdr_crc16 *vh = hdr_priv(hdr);
422 dprint(FD_VERIFY, "crc16 verify io_u %p, len %u\n", vc->io_u, hdr->len);
424 c = crc16(p, hdr->len - hdr_size(hdr));
430 vc->good_crc = &vh->crc16;
433 log_verify_failure(hdr, vc);
437 static int verify_io_u_crc64(struct verify_header *hdr, struct vcont *vc)
439 void *p = io_u_verify_off(hdr, vc);
440 struct vhdr_crc64 *vh = hdr_priv(hdr);
441 unsigned long long c;
443 dprint(FD_VERIFY, "crc64 verify io_u %p, len %u\n", vc->io_u, hdr->len);
445 c = crc64(p, hdr->len - hdr_size(hdr));
451 vc->good_crc = &vh->crc64;
454 log_verify_failure(hdr, vc);
458 static int verify_io_u_crc32(struct verify_header *hdr, struct vcont *vc)
460 void *p = io_u_verify_off(hdr, vc);
461 struct vhdr_crc32 *vh = hdr_priv(hdr);
464 dprint(FD_VERIFY, "crc32 verify io_u %p, len %u\n", vc->io_u, hdr->len);
466 c = crc32(p, hdr->len - hdr_size(hdr));
472 vc->good_crc = &vh->crc32;
475 log_verify_failure(hdr, vc);
479 static int verify_io_u_crc32c(struct verify_header *hdr, struct vcont *vc)
481 void *p = io_u_verify_off(hdr, vc);
482 struct vhdr_crc32 *vh = hdr_priv(hdr);
485 dprint(FD_VERIFY, "crc32c verify io_u %p, len %u\n", vc->io_u, hdr->len);
487 if (hdr->verify_type == VERIFY_CRC32C_INTEL)
488 c = crc32c_intel(p, hdr->len - hdr_size(hdr));
490 c = crc32c(p, hdr->len - hdr_size(hdr));
496 vc->good_crc = &vh->crc32;
499 log_verify_failure(hdr, vc);
503 static int verify_io_u_md5(struct verify_header *hdr, struct vcont *vc)
505 void *p = io_u_verify_off(hdr, vc);
506 struct vhdr_md5 *vh = hdr_priv(hdr);
507 uint32_t hash[MD5_HASH_WORDS];
508 struct md5_ctx md5_ctx = {
512 dprint(FD_VERIFY, "md5 verify io_u %p, len %u\n", vc->io_u, hdr->len);
515 md5_update(&md5_ctx, p, hdr->len - hdr_size(hdr));
517 if (!memcmp(vh->md5_digest, md5_ctx.hash, sizeof(hash)))
521 vc->good_crc = vh->md5_digest;
522 vc->bad_crc = md5_ctx.hash;
523 vc->crc_len = sizeof(hash);
524 log_verify_failure(hdr, vc);
528 static unsigned int hweight8(unsigned int w)
530 unsigned int res = w - ((w >> 1) & 0x55);
532 res = (res & 0x33) + ((res >> 2) & 0x33);
533 return (res + (res >> 4)) & 0x0F;
536 int verify_io_u_pattern(struct verify_header *hdr, struct vcont *vc)
538 struct thread_data *td = vc->td;
539 struct io_u *io_u = vc->io_u;
540 char *pattern = td->o.verify_pattern;
541 unsigned long pattern_size = td->o.verify_pattern_bytes;
542 unsigned int hdr_size = __hdr_size(td->o.verify);
543 char *buf = (void *) hdr + hdr_size;
544 unsigned int hdr_inc = get_hdr_inc(td, io_u);
545 unsigned int len = hdr_inc - hdr_size;
546 unsigned int mod = hdr_size % pattern_size;
549 for (i = 0; i < len; i++) {
550 if (buf[i] != pattern[mod]) {
553 bits = hweight8(buf[i] ^ pattern[mod]);
554 log_err("fio: got pattern %x, wanted %x. Bad bits %d\n",
555 buf[i], pattern[mod], bits);
556 log_err("fio: bad pattern block offset %u\n", i);
557 dump_verify_buffers(hdr, vc);
561 if (mod == pattern_size)
569 * Push IO verification to a separate thread
571 int verify_io_u_async(struct thread_data *td, struct io_u *io_u)
574 put_file_log(td, io_u->file);
578 pthread_mutex_lock(&td->io_u_lock);
580 if (io_u->flags & IO_U_F_IN_CUR_DEPTH) {
582 io_u->flags &= ~IO_U_F_IN_CUR_DEPTH;
584 flist_del(&io_u->list);
585 flist_add_tail(&io_u->list, &td->verify_list);
586 io_u->flags |= IO_U_F_FREE_DEF;
587 pthread_mutex_unlock(&td->io_u_lock);
589 pthread_cond_signal(&td->verify_cond);
593 static int verify_trimmed_io_u(struct thread_data *td, struct io_u *io_u)
595 static char zero_buf[1024];
596 unsigned int this_len, len;
600 if (!td->o.trim_zero)
606 this_len = sizeof(zero_buf);
609 if (memcmp(p, zero_buf, this_len)) {
620 log_err("trim: verify failed at file %s offset %llu, length %lu"
621 ", block offset %lu\n",
622 io_u->file->file_name, io_u->offset, io_u->buflen,
623 (unsigned long) (p - io_u->buf));
627 int verify_io_u(struct thread_data *td, struct io_u *io_u)
629 struct verify_header *hdr;
630 unsigned int hdr_size, hdr_inc, hdr_num = 0;
634 if (td->o.verify == VERIFY_NULL || io_u->ddir != DDIR_READ)
636 if (io_u->flags & IO_U_F_TRIMMED) {
637 ret = verify_trimmed_io_u(td, io_u);
641 hdr_inc = get_hdr_inc(td, io_u);
644 for (p = io_u->buf; p < io_u->buf + io_u->buflen;
645 p += hdr_inc, hdr_num++) {
652 if (ret && td->o.verify_fatal)
655 hdr_size = __hdr_size(td->o.verify);
656 if (td->o.verify_offset)
657 memswp(p, p + td->o.verify_offset, hdr_size);
660 if (hdr->fio_magic != FIO_HDR_MAGIC) {
661 log_err("verify: bad magic header %x, wanted %x at file %s offset %llu, length %u\n",
662 hdr->fio_magic, FIO_HDR_MAGIC,
663 io_u->file->file_name,
664 io_u->offset + hdr_num * hdr->len, hdr->len);
668 if (td->o.verify_pattern_bytes) {
669 dprint(FD_VERIFY, "pattern verify io_u %p, len %u\n",
671 ret = verify_io_u_pattern(hdr, &vc);
673 log_err("pattern: verify failed at file %s offset %llu, length %u\n",
674 io_u->file->file_name,
675 io_u->offset + hdr_num * hdr->len,
680 * Also verify the meta data, if applicable
682 if (hdr->verify_type == VERIFY_META)
683 ret |= verify_io_u_meta(hdr, td, &vc);
687 switch (hdr->verify_type) {
689 ret = verify_io_u_md5(hdr, &vc);
692 ret = verify_io_u_crc64(hdr, &vc);
695 case VERIFY_CRC32C_INTEL:
696 ret = verify_io_u_crc32c(hdr, &vc);
699 ret = verify_io_u_crc32(hdr, &vc);
702 ret = verify_io_u_crc16(hdr, &vc);
705 ret = verify_io_u_crc7(hdr, &vc);
708 ret = verify_io_u_sha256(hdr, &vc);
711 ret = verify_io_u_sha512(hdr, &vc);
714 ret = verify_io_u_meta(hdr, td, &vc);
717 ret = verify_io_u_sha1(hdr, &vc);
720 log_err("Bad verify type %u\n", hdr->verify_type);
726 if (ret && td->o.verify_fatal)
732 static void fill_meta(struct verify_header *hdr, struct thread_data *td,
733 struct io_u *io_u, unsigned int header_num)
735 struct vhdr_meta *vh = hdr_priv(hdr);
737 vh->thread = td->thread_number;
739 vh->time_sec = io_u->start_time.tv_sec;
740 vh->time_usec = io_u->start_time.tv_usec;
742 vh->numberio = td->io_issues[DDIR_WRITE];
744 vh->offset = io_u->offset + header_num * td->o.verify_interval;
747 static void fill_sha512(struct verify_header *hdr, void *p, unsigned int len)
749 struct vhdr_sha512 *vh = hdr_priv(hdr);
750 struct sha512_ctx sha512_ctx = {
754 sha512_init(&sha512_ctx);
755 sha512_update(&sha512_ctx, p, len);
758 static void fill_sha256(struct verify_header *hdr, void *p, unsigned int len)
760 struct vhdr_sha256 *vh = hdr_priv(hdr);
761 struct sha256_ctx sha256_ctx = {
765 sha256_init(&sha256_ctx);
766 sha256_update(&sha256_ctx, p, len);
769 static void fill_sha1(struct verify_header *hdr, void *p, unsigned int len)
771 struct vhdr_sha1 *vh = hdr_priv(hdr);
772 struct sha1_ctx sha1_ctx = {
776 sha1_init(&sha1_ctx);
777 sha1_update(&sha1_ctx, p, len);
780 static void fill_crc7(struct verify_header *hdr, void *p, unsigned int len)
782 struct vhdr_crc7 *vh = hdr_priv(hdr);
784 vh->crc7 = crc7(p, len);
787 static void fill_crc16(struct verify_header *hdr, void *p, unsigned int len)
789 struct vhdr_crc16 *vh = hdr_priv(hdr);
791 vh->crc16 = crc16(p, len);
794 static void fill_crc32(struct verify_header *hdr, void *p, unsigned int len)
796 struct vhdr_crc32 *vh = hdr_priv(hdr);
798 vh->crc32 = crc32(p, len);
801 static void fill_crc32c(struct verify_header *hdr, void *p, unsigned int len)
803 struct vhdr_crc32 *vh = hdr_priv(hdr);
805 if (hdr->verify_type == VERIFY_CRC32C_INTEL)
806 vh->crc32 = crc32c_intel(p, len);
808 vh->crc32 = crc32c(p, len);
811 static void fill_crc64(struct verify_header *hdr, void *p, unsigned int len)
813 struct vhdr_crc64 *vh = hdr_priv(hdr);
815 vh->crc64 = crc64(p, len);
818 static void fill_md5(struct verify_header *hdr, void *p, unsigned int len)
820 struct vhdr_md5 *vh = hdr_priv(hdr);
821 struct md5_ctx md5_ctx = {
822 .hash = (uint32_t *) vh->md5_digest,
826 md5_update(&md5_ctx, p, len);
829 static void populate_hdr(struct thread_data *td, struct io_u *io_u,
830 struct verify_header *hdr, unsigned int header_num,
831 unsigned int header_len)
833 unsigned int data_len;
838 hdr->fio_magic = FIO_HDR_MAGIC;
839 hdr->len = header_len;
840 hdr->verify_type = td->o.verify;
841 hdr->rand_seed = io_u->rand_seed;
842 data_len = header_len - hdr_size(hdr);
844 data = p + hdr_size(hdr);
845 switch (td->o.verify) {
847 dprint(FD_VERIFY, "fill md5 io_u %p, len %u\n",
849 fill_md5(hdr, data, data_len);
852 dprint(FD_VERIFY, "fill crc64 io_u %p, len %u\n",
854 fill_crc64(hdr, data, data_len);
857 case VERIFY_CRC32C_INTEL:
858 dprint(FD_VERIFY, "fill crc32c io_u %p, len %u\n",
860 fill_crc32c(hdr, data, data_len);
863 dprint(FD_VERIFY, "fill crc32 io_u %p, len %u\n",
865 fill_crc32(hdr, data, data_len);
868 dprint(FD_VERIFY, "fill crc16 io_u %p, len %u\n",
870 fill_crc16(hdr, data, data_len);
873 dprint(FD_VERIFY, "fill crc7 io_u %p, len %u\n",
875 fill_crc7(hdr, data, data_len);
878 dprint(FD_VERIFY, "fill sha256 io_u %p, len %u\n",
880 fill_sha256(hdr, data, data_len);
883 dprint(FD_VERIFY, "fill sha512 io_u %p, len %u\n",
885 fill_sha512(hdr, data, data_len);
888 dprint(FD_VERIFY, "fill meta io_u %p, len %u\n",
890 fill_meta(hdr, td, io_u, header_num);
893 dprint(FD_VERIFY, "fill sha1 io_u %p, len %u\n",
895 fill_sha1(hdr, data, data_len);
898 log_err("fio: bad verify type: %d\n", td->o.verify);
901 if (td->o.verify_offset)
902 memswp(p, p + td->o.verify_offset, hdr_size(hdr));
906 * fill body of io_u->buf with random data and add a header with the
909 void populate_verify_io_u(struct thread_data *td, struct io_u *io_u)
911 if (td->o.verify == VERIFY_NULL)
914 fill_pattern_headers(td, io_u, 0, 0);
917 int get_next_verify(struct thread_data *td, struct io_u *io_u)
919 struct io_piece *ipo = NULL;
922 * this io_u is from a requeue, we already filled the offsets
927 if (!RB_EMPTY_ROOT(&td->io_hist_tree)) {
928 struct rb_node *n = rb_first(&td->io_hist_tree);
930 ipo = rb_entry(n, struct io_piece, rb_node);
931 rb_erase(n, &td->io_hist_tree);
932 assert(ipo->flags & IP_F_ONRB);
933 ipo->flags &= ~IP_F_ONRB;
934 } else if (!flist_empty(&td->io_hist_list)) {
935 ipo = flist_entry(td->io_hist_list.next, struct io_piece, list);
936 flist_del(&ipo->list);
937 assert(ipo->flags & IP_F_ONLIST);
938 ipo->flags &= ~IP_F_ONLIST;
944 io_u->offset = ipo->offset;
945 io_u->buflen = ipo->len;
946 io_u->file = ipo->file;
948 if (ipo->flags & IP_F_TRIMMED)
949 io_u->flags |= IO_U_F_TRIMMED;
951 if (!fio_file_open(io_u->file)) {
952 int r = td_io_open_file(td, io_u->file);
955 dprint(FD_VERIFY, "failed file %s open\n",
956 io_u->file->file_name);
962 assert(fio_file_open(io_u->file));
963 io_u->ddir = DDIR_READ;
964 io_u->xfer_buf = io_u->buf;
965 io_u->xfer_buflen = io_u->buflen;
967 remove_trim_entry(td, ipo);
969 dprint(FD_VERIFY, "get_next_verify: ret io_u %p\n", io_u);
973 dprint(FD_VERIFY, "get_next_verify: empty\n");
977 static void *verify_async_thread(void *data)
979 struct thread_data *td = data;
983 if (td->o.verify_cpumask_set &&
984 fio_setaffinity(td->pid, td->o.verify_cpumask)) {
985 log_err("fio: failed setting verify thread affinity\n");
993 if (td->verify_thread_exit)
996 pthread_mutex_lock(&td->io_u_lock);
998 while (flist_empty(&td->verify_list) &&
999 !td->verify_thread_exit) {
1000 ret = pthread_cond_wait(&td->verify_cond,
1003 pthread_mutex_unlock(&td->io_u_lock);
1008 flist_splice_init(&td->verify_list, &list);
1009 pthread_mutex_unlock(&td->io_u_lock);
1011 if (flist_empty(&list))
1014 while (!flist_empty(&list)) {
1015 io_u = flist_entry(list.next, struct io_u, list);
1016 flist_del_init(&io_u->list);
1018 ret = verify_io_u(td, io_u);
1022 if (td->o.continue_on_error &&
1023 td_non_fatal_error(ret)) {
1024 update_error_count(td, ret);
1032 td_verror(td, ret, "async_verify");
1033 if (td->o.verify_fatal)
1038 pthread_mutex_lock(&td->io_u_lock);
1039 td->nr_verify_threads--;
1040 pthread_mutex_unlock(&td->io_u_lock);
1042 pthread_cond_signal(&td->free_cond);
1046 int verify_async_init(struct thread_data *td)
1049 pthread_attr_t attr;
1051 pthread_attr_init(&attr);
1052 pthread_attr_setstacksize(&attr, PTHREAD_STACK_MIN);
1054 td->verify_thread_exit = 0;
1056 td->verify_threads = malloc(sizeof(pthread_t) * td->o.verify_async);
1057 for (i = 0; i < td->o.verify_async; i++) {
1058 ret = pthread_create(&td->verify_threads[i], &attr,
1059 verify_async_thread, td);
1061 log_err("fio: async verify creation failed: %s\n",
1065 ret = pthread_detach(td->verify_threads[i]);
1067 log_err("fio: async verify thread detach failed: %s\n",
1071 td->nr_verify_threads++;
1074 pthread_attr_destroy(&attr);
1076 if (i != td->o.verify_async) {
1077 log_err("fio: only %d verify threads started, exiting\n", i);
1078 td->verify_thread_exit = 1;
1080 pthread_cond_broadcast(&td->verify_cond);
1087 void verify_async_exit(struct thread_data *td)
1089 td->verify_thread_exit = 1;
1091 pthread_cond_broadcast(&td->verify_cond);
1093 pthread_mutex_lock(&td->io_u_lock);
1095 while (td->nr_verify_threads)
1096 pthread_cond_wait(&td->free_cond, &td->io_u_lock);
1098 pthread_mutex_unlock(&td->io_u_lock);
1099 free(td->verify_threads);
1100 td->verify_threads = NULL;