Commit | Line | Data |
---|---|---|
e29d1b70 JA |
1 | /* |
2 | * IO verification helpers | |
3 | */ | |
4 | #include <unistd.h> | |
5 | #include <fcntl.h> | |
6 | #include <string.h> | |
97af62ce | 7 | #include <assert.h> |
e29d1b70 JA |
8 | |
9 | #include "fio.h" | |
e29d1b70 | 10 | |
eef6eea1 JA |
11 | #include "crc/md5.h" |
12 | #include "crc/crc64.h" | |
13 | #include "crc/crc32.h" | |
14 | #include "crc/crc16.h" | |
15 | #include "crc/crc7.h" | |
16 | #include "crc/sha256.h" | |
17 | #include "crc/sha512.h" | |
cd14cc10 | 18 | |
90059d65 | 19 | static void fill_random_bytes(struct thread_data *td, void *p, unsigned int len) |
e29d1b70 JA |
20 | { |
21 | unsigned int todo; | |
4c5946c6 | 22 | int r; |
e29d1b70 JA |
23 | |
24 | while (len) { | |
4c5946c6 | 25 | r = os_random_long(&td->verify_state); |
e29d1b70 JA |
26 | |
27 | /* | |
28 | * lrand48_r seems to be broken and only fill the bottom | |
29 | * 32-bits, even on 64-bit archs with 64-bit longs | |
30 | */ | |
31 | todo = sizeof(r); | |
32 | if (todo > len) | |
33 | todo = len; | |
34 | ||
35 | memcpy(p, &r, todo); | |
36 | ||
37 | len -= todo; | |
38 | p += todo; | |
39 | } | |
40 | } | |
41 | ||
90059d65 JA |
42 | static void fill_pattern(struct thread_data *td, void *p, unsigned int len) |
43 | { | |
44 | switch (td->o.verify_pattern_bytes) { | |
45 | case 0: | |
46 | fill_random_bytes(td, p, len); | |
47 | break; | |
48 | case 1: | |
49 | memset(p, td->o.verify_pattern, len); | |
50 | break; | |
51 | case 2: | |
52 | case 3: | |
53 | case 4: { | |
54 | unsigned int pattern = td->o.verify_pattern; | |
55 | unsigned int i = 0; | |
56 | unsigned char c1, c2, c3, c4; | |
57 | unsigned char *b = p; | |
58 | ||
59 | c1 = pattern & 0xff; | |
60 | pattern >>= 8; | |
61 | c2 = pattern & 0xff; | |
62 | pattern >>= 8; | |
63 | c3 = pattern & 0xff; | |
64 | pattern >>= 8; | |
65 | c4 = pattern & 0xff; | |
66 | ||
67 | while (i < len) { | |
68 | b[i++] = c1; | |
69 | if (i == len) | |
70 | break; | |
71 | b[i++] = c2; | |
72 | if (td->o.verify_pattern_bytes == 2 || i == len) | |
73 | continue; | |
74 | b[i++] = c3; | |
75 | if (td->o.verify_pattern_bytes == 3 || i == len) | |
76 | continue; | |
77 | b[i++] = c4; | |
78 | } | |
79 | break; | |
80 | } | |
81 | } | |
82 | } | |
83 | ||
84 | static void memswp(void* buf1, void* buf2, unsigned int len) | |
546a9142 | 85 | { |
dee6de74 SL |
86 | char swap[200]; |
87 | ||
88 | assert(len <= sizeof(swap)); | |
90059d65 | 89 | |
546a9142 SL |
90 | memcpy(&swap, buf1, len); |
91 | memcpy(buf1, buf2, len); | |
92 | memcpy(buf2, &swap, len); | |
93 | } | |
94 | ||
e29d1b70 JA |
95 | static void hexdump(void *buffer, int len) |
96 | { | |
97 | unsigned char *p = buffer; | |
98 | int i; | |
99 | ||
100 | for (i = 0; i < len; i++) | |
6d86144d JA |
101 | log_info("%02x", p[i]); |
102 | log_info("\n"); | |
e29d1b70 JA |
103 | } |
104 | ||
87677832 JA |
105 | /* |
106 | * Prepare for seperation of verify_header and checksum header | |
107 | */ | |
546dfd9f | 108 | static inline unsigned int __hdr_size(int verify_type) |
87677832 | 109 | { |
546dfd9f | 110 | unsigned int len; |
87677832 | 111 | |
546dfd9f JA |
112 | switch (verify_type) { |
113 | case VERIFY_NONE: | |
114 | case VERIFY_NULL: | |
115 | len = 0; | |
116 | break; | |
117 | case VERIFY_MD5: | |
118 | len = sizeof(struct vhdr_md5); | |
119 | break; | |
120 | case VERIFY_CRC64: | |
121 | len = sizeof(struct vhdr_crc64); | |
122 | break; | |
123 | case VERIFY_CRC32: | |
124 | len = sizeof(struct vhdr_crc32); | |
125 | break; | |
126 | case VERIFY_CRC16: | |
127 | len = sizeof(struct vhdr_crc16); | |
128 | break; | |
129 | case VERIFY_CRC7: | |
130 | len = sizeof(struct vhdr_crc7); | |
131 | break; | |
132 | case VERIFY_SHA256: | |
133 | len = sizeof(struct vhdr_sha256); | |
134 | break; | |
135 | case VERIFY_SHA512: | |
136 | len = sizeof(struct vhdr_sha512); | |
137 | break; | |
7437ee87 SL |
138 | case VERIFY_META: |
139 | len = sizeof(struct vhdr_meta); | |
140 | break; | |
546dfd9f JA |
141 | default: |
142 | log_err("fio: unknown verify header!\n"); | |
143 | assert(0); | |
144 | } | |
145 | ||
146 | return len + sizeof(struct verify_header); | |
87677832 JA |
147 | } |
148 | ||
149 | static inline unsigned int hdr_size(struct verify_header *hdr) | |
150 | { | |
546dfd9f JA |
151 | return __hdr_size(hdr->verify_type); |
152 | } | |
153 | ||
154 | static void *hdr_priv(struct verify_header *hdr) | |
155 | { | |
156 | void *priv = hdr; | |
157 | ||
158 | return priv + sizeof(struct verify_header); | |
87677832 JA |
159 | } |
160 | ||
d9f2caf3 JA |
161 | /* |
162 | * Return data area 'header_num' | |
163 | */ | |
164 | static inline void *io_u_verify_off(struct verify_header *hdr, | |
165 | struct io_u *io_u, | |
166 | unsigned char header_num) | |
167 | { | |
87677832 | 168 | return io_u->buf + header_num * hdr->len + hdr_size(hdr); |
d9f2caf3 JA |
169 | } |
170 | ||
7437ee87 SL |
171 | static int verify_io_u_meta(struct verify_header *hdr, struct thread_data *td, |
172 | struct io_u *io_u, unsigned int header_num) | |
173 | { | |
174 | struct vhdr_meta *vh = hdr_priv(hdr); | |
175 | ||
176 | if (vh->offset != io_u->offset + header_num * td->o.verify_interval) { | |
177 | log_err("meta: verify failed at %llu/%u\n", | |
178 | io_u->offset + header_num * hdr->len, | |
179 | hdr->len); | |
180 | return 1; | |
181 | } | |
182 | ||
183 | return 0; | |
184 | } | |
185 | ||
cd14cc10 JA |
186 | static int verify_io_u_sha512(struct verify_header *hdr, struct io_u *io_u, |
187 | unsigned int header_num) | |
188 | { | |
189 | void *p = io_u_verify_off(hdr, io_u, header_num); | |
546dfd9f | 190 | struct vhdr_sha512 *vh = hdr_priv(hdr); |
cd14cc10 JA |
191 | uint8_t sha512[128]; |
192 | struct sha512_ctx sha512_ctx = { | |
193 | .buf = sha512, | |
194 | }; | |
195 | ||
196 | sha512_init(&sha512_ctx); | |
87677832 | 197 | sha512_update(&sha512_ctx, p, hdr->len - hdr_size(hdr)); |
cd14cc10 | 198 | |
546dfd9f | 199 | if (memcmp(vh->sha512, sha512_ctx.buf, sizeof(sha512))) { |
cd14cc10 JA |
200 | log_err("sha512: verify failed at %llu/%u\n", |
201 | io_u->offset + header_num * hdr->len, | |
202 | hdr->len); | |
546dfd9f | 203 | hexdump(vh->sha512, sizeof(vh->sha512)); |
cd14cc10 JA |
204 | hexdump(sha512_ctx.buf, sizeof(sha512)); |
205 | return 1; | |
206 | } | |
207 | ||
208 | return 0; | |
209 | } | |
210 | ||
211 | static int verify_io_u_sha256(struct verify_header *hdr, struct io_u *io_u, | |
212 | unsigned int header_num) | |
213 | { | |
214 | void *p = io_u_verify_off(hdr, io_u, header_num); | |
546dfd9f | 215 | struct vhdr_sha256 *vh = hdr_priv(hdr); |
cd14cc10 JA |
216 | uint8_t sha256[128]; |
217 | struct sha256_ctx sha256_ctx = { | |
218 | .buf = sha256, | |
219 | }; | |
220 | ||
221 | sha256_init(&sha256_ctx); | |
87677832 | 222 | sha256_update(&sha256_ctx, p, hdr->len - hdr_size(hdr)); |
cd14cc10 | 223 | |
546dfd9f | 224 | if (memcmp(vh->sha256, sha256_ctx.buf, sizeof(sha256))) { |
cd14cc10 JA |
225 | log_err("sha256: verify failed at %llu/%u\n", |
226 | io_u->offset + header_num * hdr->len, | |
227 | hdr->len); | |
546dfd9f | 228 | hexdump(vh->sha256, sizeof(vh->sha256)); |
cd14cc10 JA |
229 | hexdump(sha256_ctx.buf, sizeof(sha256)); |
230 | return 1; | |
231 | } | |
232 | ||
233 | return 0; | |
234 | } | |
235 | ||
3f9f4e26 SL |
236 | static int verify_io_u_crc7(struct verify_header *hdr, struct io_u *io_u, |
237 | unsigned char header_num) | |
1e154bdb | 238 | { |
d9f2caf3 | 239 | void *p = io_u_verify_off(hdr, io_u, header_num); |
546dfd9f | 240 | struct vhdr_crc7 *vh = hdr_priv(hdr); |
1e154bdb JA |
241 | unsigned char c; |
242 | ||
87677832 | 243 | c = crc7(p, hdr->len - hdr_size(hdr)); |
1e154bdb | 244 | |
546dfd9f | 245 | if (c != vh->crc7) { |
3f9f4e26 SL |
246 | log_err("crc7: verify failed at %llu/%u\n", |
247 | io_u->offset + header_num * hdr->len, | |
248 | hdr->len); | |
546dfd9f | 249 | log_err("crc7: wanted %x, got %x\n", vh->crc7, c); |
1e154bdb JA |
250 | return 1; |
251 | } | |
252 | ||
253 | return 0; | |
254 | } | |
255 | ||
3f9f4e26 SL |
256 | static int verify_io_u_crc16(struct verify_header *hdr, struct io_u *io_u, |
257 | unsigned int header_num) | |
969f7ed3 | 258 | { |
d9f2caf3 | 259 | void *p = io_u_verify_off(hdr, io_u, header_num); |
546dfd9f | 260 | struct vhdr_crc16 *vh = hdr_priv(hdr); |
969f7ed3 JA |
261 | unsigned short c; |
262 | ||
87677832 | 263 | c = crc16(p, hdr->len - hdr_size(hdr)); |
969f7ed3 | 264 | |
546dfd9f | 265 | if (c != vh->crc16) { |
3f9f4e26 SL |
266 | log_err("crc16: verify failed at %llu/%u\n", |
267 | io_u->offset + header_num * hdr->len, | |
268 | hdr->len); | |
546dfd9f | 269 | log_err("crc16: wanted %x, got %x\n", vh->crc16, c); |
969f7ed3 JA |
270 | return 1; |
271 | } | |
272 | ||
273 | return 0; | |
274 | } | |
275 | ||
3f9f4e26 SL |
276 | static int verify_io_u_crc64(struct verify_header *hdr, struct io_u *io_u, |
277 | unsigned int header_num) | |
d77a7af3 | 278 | { |
d9f2caf3 | 279 | void *p = io_u_verify_off(hdr, io_u, header_num); |
546dfd9f | 280 | struct vhdr_crc64 *vh = hdr_priv(hdr); |
d77a7af3 JA |
281 | unsigned long long c; |
282 | ||
87677832 | 283 | c = crc64(p, hdr->len - hdr_size(hdr)); |
d77a7af3 | 284 | |
546dfd9f | 285 | if (c != vh->crc64) { |
3f9f4e26 SL |
286 | log_err("crc64: verify failed at %llu/%u\n", |
287 | io_u->offset + header_num * hdr->len, | |
288 | hdr->len); | |
546dfd9f | 289 | log_err("crc64: wanted %llx, got %llx\n", (unsigned long long) vh->crc64, c); |
d77a7af3 JA |
290 | return 1; |
291 | } | |
292 | ||
293 | return 0; | |
294 | } | |
295 | ||
3f9f4e26 SL |
296 | static int verify_io_u_crc32(struct verify_header *hdr, struct io_u *io_u, |
297 | unsigned int header_num) | |
e29d1b70 | 298 | { |
d9f2caf3 | 299 | void *p = io_u_verify_off(hdr, io_u, header_num); |
546dfd9f JA |
300 | struct vhdr_crc32 *vh = hdr_priv(hdr); |
301 | uint32_t c; | |
e29d1b70 | 302 | |
87677832 | 303 | c = crc32(p, hdr->len - hdr_size(hdr)); |
e29d1b70 | 304 | |
546dfd9f | 305 | if (c != vh->crc32) { |
3f9f4e26 SL |
306 | log_err("crc32: verify failed at %llu/%u\n", |
307 | io_u->offset + header_num * hdr->len, | |
308 | hdr->len); | |
546dfd9f | 309 | log_err("crc32: wanted %x, got %x\n", vh->crc32, c); |
e29d1b70 JA |
310 | return 1; |
311 | } | |
312 | ||
313 | return 0; | |
314 | } | |
315 | ||
3f9f4e26 SL |
316 | static int verify_io_u_md5(struct verify_header *hdr, struct io_u *io_u, |
317 | unsigned int header_num) | |
e29d1b70 | 318 | { |
d9f2caf3 | 319 | void *p = io_u_verify_off(hdr, io_u, header_num); |
546dfd9f | 320 | struct vhdr_md5 *vh = hdr_priv(hdr); |
8c432325 JA |
321 | uint32_t hash[MD5_HASH_WORDS]; |
322 | struct md5_ctx md5_ctx = { | |
323 | .hash = hash, | |
324 | }; | |
e29d1b70 | 325 | |
61f821f1 | 326 | md5_init(&md5_ctx); |
87677832 | 327 | md5_update(&md5_ctx, p, hdr->len - hdr_size(hdr)); |
e29d1b70 | 328 | |
546dfd9f | 329 | if (memcmp(vh->md5_digest, md5_ctx.hash, sizeof(hash))) { |
3f9f4e26 SL |
330 | log_err("md5: verify failed at %llu/%u\n", |
331 | io_u->offset + header_num * hdr->len, | |
332 | hdr->len); | |
546dfd9f | 333 | hexdump(vh->md5_digest, sizeof(vh->md5_digest)); |
8c432325 | 334 | hexdump(md5_ctx.hash, sizeof(hash)); |
e29d1b70 JA |
335 | return 1; |
336 | } | |
337 | ||
338 | return 0; | |
339 | } | |
340 | ||
36690c9b | 341 | int verify_io_u(struct thread_data *td, struct io_u *io_u) |
e29d1b70 | 342 | { |
3f9f4e26 SL |
343 | struct verify_header *hdr; |
344 | unsigned int hdr_inc, hdr_num = 0; | |
95646108 | 345 | void *p; |
e29d1b70 JA |
346 | int ret; |
347 | ||
1dcc0498 | 348 | if (td->o.verify == VERIFY_NULL || io_u->ddir != DDIR_READ) |
36690c9b JA |
349 | return 0; |
350 | ||
3f9f4e26 | 351 | hdr_inc = io_u->buflen; |
a59e170d JA |
352 | if (td->o.verify_interval) |
353 | hdr_inc = td->o.verify_interval; | |
e29d1b70 | 354 | |
95646108 | 355 | for (p = io_u->buf; p < io_u->buf + io_u->buflen; p += hdr_inc) { |
a59e170d | 356 | if (td->o.verify_offset) |
546dfd9f | 357 | memswp(p, p + td->o.verify_offset, __hdr_size(td->o.verify)); |
546a9142 | 358 | |
95646108 | 359 | hdr = p; |
e29d1b70 | 360 | |
3f9f4e26 SL |
361 | if (hdr->fio_magic != FIO_HDR_MAGIC) { |
362 | log_err("Bad verify header %x\n", hdr->fio_magic); | |
363 | return EIO; | |
364 | } | |
365 | ||
366 | switch (hdr->verify_type) { | |
367 | case VERIFY_MD5: | |
368 | ret = verify_io_u_md5(hdr, io_u, hdr_num); | |
369 | break; | |
370 | case VERIFY_CRC64: | |
371 | ret = verify_io_u_crc64(hdr, io_u, hdr_num); | |
372 | break; | |
373 | case VERIFY_CRC32: | |
374 | ret = verify_io_u_crc32(hdr, io_u, hdr_num); | |
375 | break; | |
376 | case VERIFY_CRC16: | |
377 | ret = verify_io_u_crc16(hdr, io_u, hdr_num); | |
378 | break; | |
379 | case VERIFY_CRC7: | |
380 | ret = verify_io_u_crc7(hdr, io_u, hdr_num); | |
381 | break; | |
cd14cc10 JA |
382 | case VERIFY_SHA256: |
383 | ret = verify_io_u_sha256(hdr, io_u, hdr_num); | |
384 | break; | |
385 | case VERIFY_SHA512: | |
386 | ret = verify_io_u_sha512(hdr, io_u, hdr_num); | |
387 | break; | |
7437ee87 SL |
388 | case VERIFY_META: |
389 | ret = verify_io_u_meta(hdr, td, io_u, hdr_num); | |
390 | break; | |
3f9f4e26 SL |
391 | default: |
392 | log_err("Bad verify type %u\n", hdr->verify_type); | |
393 | ret = 1; | |
394 | } | |
395 | hdr_num++; | |
396 | } | |
a7dfe862 JA |
397 | |
398 | return 0; | |
e29d1b70 JA |
399 | } |
400 | ||
7437ee87 SL |
401 | static void fill_meta(struct verify_header *hdr, struct thread_data *td, |
402 | struct io_u *io_u, unsigned int header_num) | |
403 | { | |
404 | struct vhdr_meta *vh = hdr_priv(hdr); | |
405 | ||
406 | vh->thread = td->thread_number; | |
407 | ||
408 | vh->time_sec = io_u->start_time.tv_sec; | |
409 | vh->time_usec = io_u->start_time.tv_usec; | |
410 | ||
411 | vh->numberio = td->io_issues[DDIR_WRITE]; | |
412 | ||
413 | vh->offset = io_u->offset + header_num * td->o.verify_interval; | |
414 | } | |
415 | ||
cd14cc10 JA |
416 | static void fill_sha512(struct verify_header *hdr, void *p, unsigned int len) |
417 | { | |
546dfd9f | 418 | struct vhdr_sha512 *vh = hdr_priv(hdr); |
cd14cc10 | 419 | struct sha512_ctx sha512_ctx = { |
546dfd9f | 420 | .buf = vh->sha512, |
cd14cc10 JA |
421 | }; |
422 | ||
423 | sha512_init(&sha512_ctx); | |
424 | sha512_update(&sha512_ctx, p, len); | |
425 | } | |
426 | ||
427 | static void fill_sha256(struct verify_header *hdr, void *p, unsigned int len) | |
428 | { | |
546dfd9f | 429 | struct vhdr_sha256 *vh = hdr_priv(hdr); |
cd14cc10 | 430 | struct sha256_ctx sha256_ctx = { |
546dfd9f | 431 | .buf = vh->sha256, |
cd14cc10 JA |
432 | }; |
433 | ||
434 | sha256_init(&sha256_ctx); | |
435 | sha256_update(&sha256_ctx, p, len); | |
436 | } | |
437 | ||
1e154bdb JA |
438 | static void fill_crc7(struct verify_header *hdr, void *p, unsigned int len) |
439 | { | |
546dfd9f JA |
440 | struct vhdr_crc7 *vh = hdr_priv(hdr); |
441 | ||
442 | vh->crc7 = crc7(p, len); | |
1e154bdb JA |
443 | } |
444 | ||
969f7ed3 JA |
445 | static void fill_crc16(struct verify_header *hdr, void *p, unsigned int len) |
446 | { | |
546dfd9f JA |
447 | struct vhdr_crc16 *vh = hdr_priv(hdr); |
448 | ||
449 | vh->crc16 = crc16(p, len); | |
969f7ed3 JA |
450 | } |
451 | ||
e29d1b70 JA |
452 | static void fill_crc32(struct verify_header *hdr, void *p, unsigned int len) |
453 | { | |
546dfd9f JA |
454 | struct vhdr_crc32 *vh = hdr_priv(hdr); |
455 | ||
456 | vh->crc32 = crc32(p, len); | |
e29d1b70 JA |
457 | } |
458 | ||
d77a7af3 JA |
459 | static void fill_crc64(struct verify_header *hdr, void *p, unsigned int len) |
460 | { | |
546dfd9f JA |
461 | struct vhdr_crc64 *vh = hdr_priv(hdr); |
462 | ||
463 | vh->crc64 = crc64(p, len); | |
d77a7af3 JA |
464 | } |
465 | ||
e29d1b70 JA |
466 | static void fill_md5(struct verify_header *hdr, void *p, unsigned int len) |
467 | { | |
546dfd9f | 468 | struct vhdr_md5 *vh = hdr_priv(hdr); |
8c432325 | 469 | struct md5_ctx md5_ctx = { |
546dfd9f | 470 | .hash = (uint32_t *) vh->md5_digest, |
8c432325 | 471 | }; |
e29d1b70 | 472 | |
61f821f1 | 473 | md5_init(&md5_ctx); |
e29d1b70 | 474 | md5_update(&md5_ctx, p, len); |
e29d1b70 JA |
475 | } |
476 | ||
477 | /* | |
478 | * fill body of io_u->buf with random data and add a header with the | |
479 | * crc32 or md5 sum of that data. | |
480 | */ | |
481 | void populate_verify_io_u(struct thread_data *td, struct io_u *io_u) | |
482 | { | |
baefa9be | 483 | struct verify_header *hdr; |
95646108 | 484 | void *p = io_u->buf, *data; |
7437ee87 | 485 | unsigned int hdr_inc, data_len, header_num = 0; |
e29d1b70 | 486 | |
9cc3d150 JA |
487 | if (td->o.verify == VERIFY_NULL) |
488 | return; | |
489 | ||
90059d65 | 490 | fill_pattern(td, p, io_u->buflen); |
546a9142 SL |
491 | |
492 | hdr_inc = io_u->buflen; | |
a59e170d JA |
493 | if (td->o.verify_interval) |
494 | hdr_inc = td->o.verify_interval; | |
baefa9be | 495 | |
95646108 JA |
496 | for (;p < io_u->buf + io_u->buflen; p += hdr_inc) { |
497 | hdr = p; | |
3f9f4e26 SL |
498 | |
499 | hdr->fio_magic = FIO_HDR_MAGIC; | |
500 | hdr->verify_type = td->o.verify; | |
546a9142 | 501 | hdr->len = hdr_inc; |
87677832 | 502 | data_len = hdr_inc - hdr_size(hdr); |
3f9f4e26 | 503 | |
87677832 | 504 | data = p + hdr_size(hdr); |
3f9f4e26 SL |
505 | switch (td->o.verify) { |
506 | case VERIFY_MD5: | |
507 | fill_md5(hdr, data, data_len); | |
508 | break; | |
509 | case VERIFY_CRC64: | |
510 | fill_crc64(hdr, data, data_len); | |
511 | break; | |
512 | case VERIFY_CRC32: | |
513 | fill_crc32(hdr, data, data_len); | |
514 | break; | |
515 | case VERIFY_CRC16: | |
516 | fill_crc16(hdr, data, data_len); | |
517 | break; | |
518 | case VERIFY_CRC7: | |
519 | fill_crc7(hdr, data, data_len); | |
520 | break; | |
cd14cc10 JA |
521 | case VERIFY_SHA256: |
522 | fill_sha256(hdr, data, data_len); | |
523 | break; | |
524 | case VERIFY_SHA512: | |
525 | fill_sha512(hdr, data, data_len); | |
526 | break; | |
7437ee87 SL |
527 | case VERIFY_META: |
528 | fill_meta(hdr, td, io_u, header_num); | |
529 | break; | |
3f9f4e26 SL |
530 | default: |
531 | log_err("fio: bad verify type: %d\n", td->o.verify); | |
532 | assert(0); | |
533 | } | |
a59e170d | 534 | if (td->o.verify_offset) |
87677832 | 535 | memswp(p, p + td->o.verify_offset, hdr_size(hdr)); |
7437ee87 | 536 | header_num++; |
e29d1b70 | 537 | } |
e29d1b70 JA |
538 | } |
539 | ||
540 | int get_next_verify(struct thread_data *td, struct io_u *io_u) | |
541 | { | |
8de8f047 | 542 | struct io_piece *ipo = NULL; |
e29d1b70 | 543 | |
d2d7fa53 JA |
544 | /* |
545 | * this io_u is from a requeue, we already filled the offsets | |
546 | */ | |
547 | if (io_u->file) | |
548 | return 0; | |
549 | ||
8de8f047 JA |
550 | if (!RB_EMPTY_ROOT(&td->io_hist_tree)) { |
551 | struct rb_node *n = rb_first(&td->io_hist_tree); | |
e29d1b70 | 552 | |
8de8f047 | 553 | ipo = rb_entry(n, struct io_piece, rb_node); |
4b87898e | 554 | rb_erase(n, &td->io_hist_tree); |
8de8f047 JA |
555 | } else if (!list_empty(&td->io_hist_list)) { |
556 | ipo = list_entry(td->io_hist_list.next, struct io_piece, list); | |
557 | list_del(&ipo->list); | |
558 | } | |
e29d1b70 | 559 | |
8de8f047 | 560 | if (ipo) { |
e29d1b70 JA |
561 | io_u->offset = ipo->offset; |
562 | io_u->buflen = ipo->len; | |
36167d82 | 563 | io_u->file = ipo->file; |
97af62ce JA |
564 | |
565 | if ((io_u->file->flags & FIO_FILE_OPEN) == 0) { | |
566 | int r = td_io_open_file(td, io_u->file); | |
567 | ||
568 | if (r) | |
569 | return 1; | |
570 | } | |
571 | ||
572 | get_file(ipo->file); | |
573 | assert(io_u->file->flags & FIO_FILE_OPEN); | |
e29d1b70 | 574 | io_u->ddir = DDIR_READ; |
36167d82 JA |
575 | io_u->xfer_buf = io_u->buf; |
576 | io_u->xfer_buflen = io_u->buflen; | |
e29d1b70 JA |
577 | free(ipo); |
578 | return 0; | |
579 | } | |
580 | ||
581 | return 1; | |
582 | } |