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