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