Commit | Line | Data |
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53cdc686 JA |
1 | #include <unistd.h> |
2 | #include <fcntl.h> | |
3 | #include <string.h> | |
4 | #include <assert.h> | |
bbf6b540 | 5 | #include <dirent.h> |
53cdc686 JA |
6 | #include <sys/stat.h> |
7 | #include <sys/mman.h> | |
bbf6b540 | 8 | #include <sys/types.h> |
53cdc686 JA |
9 | |
10 | #include "fio.h" | |
11 | #include "os.h" | |
12 | ||
7bb48f84 | 13 | static int extend_file(struct thread_data *td, struct fio_file *f) |
25205e97 | 14 | { |
507a702f | 15 | int r, new_layout = 0, flags; |
25205e97 JA |
16 | unsigned long long left; |
17 | unsigned int bs; | |
18 | char *b; | |
b2a15192 | 19 | |
507a702f JA |
20 | /* |
21 | * check if we need to lay the file out complete again. fio | |
22 | * does that for operations involving reads, or for writes | |
23 | * where overwrite is set | |
24 | */ | |
25 | if (td_read(td) || (td_write(td) && td->o.overwrite)) | |
26 | new_layout = 1; | |
27 | ||
28 | if (new_layout && (f->flags & FIO_FILE_EXISTS)) { | |
7bb48f84 JA |
29 | if (unlink(f->file_name) < 0) { |
30 | td_verror(td, errno, "unlink"); | |
31 | return 1; | |
32 | } | |
33 | } | |
34 | ||
507a702f JA |
35 | flags = O_WRONLY | O_CREAT; |
36 | if (new_layout) | |
37 | flags |= O_TRUNC; | |
38 | ||
39 | f->fd = open(f->file_name, flags, 0644); | |
53cdc686 | 40 | if (f->fd < 0) { |
e1161c32 | 41 | td_verror(td, errno, "open"); |
53cdc686 JA |
42 | return 1; |
43 | } | |
44 | ||
7bb48f84 | 45 | if (ftruncate(f->fd, f->real_file_size) == -1) { |
e1161c32 | 46 | td_verror(td, errno, "ftruncate"); |
53cdc686 JA |
47 | goto err; |
48 | } | |
49 | ||
7bb48f84 | 50 | if (posix_fallocate(f->fd, 0, f->real_file_size) < 0) { |
e1161c32 | 51 | td_verror(td, errno, "posix_fallocate"); |
40f8298c JA |
52 | goto err; |
53 | } | |
54 | ||
507a702f JA |
55 | if (!new_layout) |
56 | goto done; | |
57 | ||
2dc1bbeb JA |
58 | b = malloc(td->o.max_bs[DDIR_WRITE]); |
59 | memset(b, 0, td->o.max_bs[DDIR_WRITE]); | |
53cdc686 | 60 | |
7bb48f84 | 61 | left = f->real_file_size; |
53cdc686 | 62 | while (left && !td->terminate) { |
2dc1bbeb | 63 | bs = td->o.max_bs[DDIR_WRITE]; |
53cdc686 JA |
64 | if (bs > left) |
65 | bs = left; | |
66 | ||
67 | r = write(f->fd, b, bs); | |
68 | ||
69 | if (r == (int) bs) { | |
70 | left -= bs; | |
71 | continue; | |
72 | } else { | |
73 | if (r < 0) | |
e1161c32 | 74 | td_verror(td, errno, "write"); |
53cdc686 | 75 | else |
e1161c32 | 76 | td_verror(td, EIO, "write"); |
53cdc686 JA |
77 | |
78 | break; | |
79 | } | |
80 | } | |
81 | ||
82 | if (td->terminate) | |
83 | unlink(f->file_name); | |
2dc1bbeb | 84 | else if (td->o.create_fsync) |
53cdc686 JA |
85 | fsync(f->fd); |
86 | ||
87 | free(b); | |
507a702f | 88 | done: |
53cdc686 JA |
89 | close(f->fd); |
90 | f->fd = -1; | |
91 | return 0; | |
92 | err: | |
93 | close(f->fd); | |
94 | f->fd = -1; | |
95 | return 1; | |
96 | } | |
97 | ||
7bb48f84 | 98 | static unsigned long long get_rand_file_size(struct thread_data *td) |
9c60ce64 | 99 | { |
9c60ce64 JA |
100 | unsigned long long ret; |
101 | long r; | |
102 | ||
9c60ce64 | 103 | r = os_random_long(&td->file_size_state); |
7bb48f84 | 104 | ret = td->o.file_size_low + (unsigned long long) ((double) td->o.file_size_high * (r / (RAND_MAX + 1.0))); |
2dc1bbeb | 105 | ret -= (ret % td->o.rw_min_bs); |
9c60ce64 JA |
106 | return ret; |
107 | } | |
108 | ||
53cdc686 JA |
109 | static int file_size(struct thread_data *td, struct fio_file *f) |
110 | { | |
111 | struct stat st; | |
112 | ||
7bb48f84 JA |
113 | if (fstat(f->fd, &st) == -1) { |
114 | td_verror(td, errno, "fstat"); | |
115 | return 1; | |
116 | } | |
53cdc686 | 117 | |
7bb48f84 | 118 | f->real_file_size = st.st_size; |
53cdc686 JA |
119 | return 0; |
120 | } | |
121 | ||
122 | static int bdev_size(struct thread_data *td, struct fio_file *f) | |
123 | { | |
124 | unsigned long long bytes; | |
125 | int r; | |
126 | ||
127 | r = blockdev_size(f->fd, &bytes); | |
128 | if (r) { | |
e1161c32 | 129 | td_verror(td, r, "blockdev_size"); |
53cdc686 JA |
130 | return 1; |
131 | } | |
132 | ||
133 | f->real_file_size = bytes; | |
53cdc686 JA |
134 | return 0; |
135 | } | |
136 | ||
137 | static int get_file_size(struct thread_data *td, struct fio_file *f) | |
138 | { | |
139 | int ret = 0; | |
140 | ||
7bb48f84 JA |
141 | if (f->filetype == FIO_TYPE_FILE) |
142 | ret = file_size(td, f); | |
143 | else if (f->filetype == FIO_TYPE_BD) | |
53cdc686 JA |
144 | ret = bdev_size(td, f); |
145 | else | |
146 | f->real_file_size = -1; | |
147 | ||
148 | if (ret) | |
149 | return ret; | |
150 | ||
151 | if (f->file_offset > f->real_file_size) { | |
2dc1bbeb | 152 | log_err("%s: offset extends end (%Lu > %Lu)\n", td->o.name, f->file_offset, f->real_file_size); |
53cdc686 JA |
153 | return 1; |
154 | } | |
155 | ||
53cdc686 JA |
156 | return 0; |
157 | } | |
158 | ||
e5b401d4 JA |
159 | int file_invalidate_cache(struct thread_data *td, struct fio_file *f) |
160 | { | |
161 | int ret = 0; | |
162 | ||
2dc1bbeb | 163 | if (td->o.odirect) |
b5af8293 JA |
164 | return 0; |
165 | ||
e5b401d4 JA |
166 | /* |
167 | * FIXME: add blockdev flushing too | |
168 | */ | |
b5af8293 | 169 | if (f->mmap) |
7bb48f84 | 170 | ret = madvise(f->mmap, f->io_size, MADV_DONTNEED); |
467d1b6b | 171 | else if (f->filetype == FIO_TYPE_FILE) |
7bb48f84 | 172 | ret = fadvise(f->fd, f->file_offset, f->io_size, POSIX_FADV_DONTNEED); |
7e0e25c9 | 173 | else if (f->filetype == FIO_TYPE_BD) { |
b5af8293 | 174 | ret = blockdev_invalidate_cache(f->fd); |
7e0e25c9 JA |
175 | if (ret < 0 && errno == EACCES && geteuid()) { |
176 | log_err("fio: only root may flush block devices. Cache flush bypassed!\n"); | |
177 | ret = 0; | |
178 | } | |
179 | } else if (f->filetype == FIO_TYPE_CHAR) | |
e5b401d4 JA |
180 | ret = 0; |
181 | ||
182 | if (ret < 0) { | |
e1161c32 | 183 | td_verror(td, errno, "invalidate_cache"); |
e5b401d4 JA |
184 | return 1; |
185 | } | |
186 | ||
ad2da605 | 187 | return ret; |
e5b401d4 JA |
188 | } |
189 | ||
b5af8293 | 190 | void generic_close_file(struct thread_data fio_unused *td, struct fio_file *f) |
53cdc686 | 191 | { |
b5af8293 JA |
192 | close(f->fd); |
193 | f->fd = -1; | |
53cdc686 JA |
194 | } |
195 | ||
b5af8293 | 196 | int generic_open_file(struct thread_data *td, struct fio_file *f) |
53cdc686 | 197 | { |
53cdc686 JA |
198 | int flags = 0; |
199 | ||
2dc1bbeb | 200 | if (td->o.odirect) |
2fd233b7 | 201 | flags |= OS_O_DIRECT; |
2dc1bbeb | 202 | if (td->o.sync_io) |
2fd233b7 | 203 | flags |= O_SYNC; |
53cdc686 | 204 | |
2fd233b7 JA |
205 | if (td_write(td) || td_rw(td)) { |
206 | flags |= O_RDWR; | |
53cdc686 | 207 | |
af52b345 | 208 | if (f->filetype == FIO_TYPE_FILE) |
2fd233b7 | 209 | flags |= O_CREAT; |
2fd233b7 | 210 | |
b5af8293 | 211 | f->fd = open(f->file_name, flags, 0600); |
2fd233b7 | 212 | } else { |
af52b345 | 213 | if (f->filetype == FIO_TYPE_CHAR) |
2fd233b7 JA |
214 | flags |= O_RDWR; |
215 | else | |
216 | flags |= O_RDONLY; | |
217 | ||
b5af8293 | 218 | f->fd = open(f->file_name, flags); |
53cdc686 JA |
219 | } |
220 | ||
221 | if (f->fd == -1) { | |
e4e33258 | 222 | char buf[FIO_VERROR_SIZE]; |
e1161c32 JA |
223 | int __e = errno; |
224 | ||
e4e33258 JA |
225 | snprintf(buf, sizeof(buf) - 1, "open(%s)", f->file_name); |
226 | ||
227 | td_verror(td, __e, buf); | |
53cdc686 JA |
228 | } |
229 | ||
b5af8293 JA |
230 | if (get_file_size(td, f)) |
231 | goto err; | |
232 | ||
53cdc686 | 233 | return 0; |
b5af8293 JA |
234 | err: |
235 | close(f->fd); | |
236 | return 1; | |
237 | } | |
238 | ||
21972cde JA |
239 | int open_files(struct thread_data *td) |
240 | { | |
241 | struct fio_file *f; | |
af52b345 JA |
242 | unsigned int i; |
243 | int err = 0; | |
21972cde JA |
244 | |
245 | for_each_file(td, f, i) { | |
b5af8293 | 246 | err = td_io_open_file(td, f); |
9bf27b45 JA |
247 | if (err) { |
248 | if (td->error == EMFILE) { | |
249 | log_err("fio: limited open files to: %d\n", td->nr_open_files); | |
250 | td->o.open_files = td->nr_open_files; | |
251 | err = 0; | |
252 | clear_error(td); | |
253 | } | |
21972cde | 254 | break; |
9bf27b45 | 255 | } |
b5af8293 | 256 | |
2dc1bbeb | 257 | if (td->o.open_files == td->nr_open_files) |
b5af8293 | 258 | break; |
21972cde JA |
259 | } |
260 | ||
7abf833d JA |
261 | if (!err) |
262 | return 0; | |
263 | ||
bdb4e2e9 | 264 | for_each_file(td, f, i) |
b5af8293 | 265 | td_io_close_file(td, f); |
7abf833d | 266 | |
21972cde JA |
267 | return err; |
268 | } | |
269 | ||
7bb48f84 JA |
270 | /* |
271 | * open/close all files, so that ->real_file_size gets set | |
272 | */ | |
000b0803 | 273 | static void get_file_sizes(struct thread_data *td) |
7bb48f84 JA |
274 | { |
275 | struct fio_file *f; | |
276 | unsigned int i; | |
7bb48f84 JA |
277 | |
278 | for_each_file(td, f, i) { | |
000b0803 | 279 | if (td->io_ops->open_file(td, f)) { |
7bb48f84 JA |
280 | td->error = 0; |
281 | memset(td->verror, 0, sizeof(td->verror)); | |
000b0803 JA |
282 | } else |
283 | td->io_ops->close_file(td, f); | |
7bb48f84 | 284 | } |
7bb48f84 JA |
285 | } |
286 | ||
287 | /* | |
288 | * Open the files and setup files sizes, creating files if necessary. | |
289 | */ | |
53cdc686 JA |
290 | int setup_files(struct thread_data *td) |
291 | { | |
7bb48f84 | 292 | unsigned long long total_size, extend_size; |
53cdc686 | 293 | struct fio_file *f; |
af52b345 | 294 | unsigned int i; |
000b0803 | 295 | int err = 0, need_extend; |
53cdc686 JA |
296 | |
297 | /* | |
298 | * if ioengine defines a setup() method, it's responsible for | |
7bb48f84 JA |
299 | * opening the files and setting f->real_file_size to indicate |
300 | * the valid range for that file. | |
53cdc686 JA |
301 | */ |
302 | if (td->io_ops->setup) | |
7bb48f84 JA |
303 | err = td->io_ops->setup(td); |
304 | else | |
000b0803 | 305 | get_file_sizes(td); |
53cdc686 | 306 | |
f1027063 JA |
307 | if (err) |
308 | return err; | |
309 | ||
0a7eb121 | 310 | /* |
7bb48f84 JA |
311 | * check sizes. if the files/devices do not exist and the size |
312 | * isn't passed to fio, abort. | |
0a7eb121 | 313 | */ |
7bb48f84 JA |
314 | total_size = 0; |
315 | for_each_file(td, f, i) { | |
316 | if (f->real_file_size == -1ULL) | |
317 | total_size = -1ULL; | |
318 | else | |
319 | total_size += f->real_file_size; | |
320 | } | |
0a7eb121 | 321 | |
7bb48f84 JA |
322 | /* |
323 | * device/file sizes are zero and no size given, punt | |
324 | */ | |
325 | if (!total_size && !td->o.size) { | |
326 | log_err("%s: you need to specify size=\n", td->o.name); | |
e1161c32 | 327 | td_verror(td, EINVAL, "total_file_size"); |
53cdc686 JA |
328 | return 1; |
329 | } | |
330 | ||
7bb48f84 JA |
331 | /* |
332 | * now file sizes are known, so we can set ->io_size. if size= is | |
333 | * not given, ->io_size is just equal to ->real_file_size. if size | |
334 | * is given, ->io_size is size / nr_files. | |
335 | */ | |
336 | extend_size = total_size = 0; | |
337 | need_extend = 0; | |
338 | for_each_file(td, f, i) { | |
339 | if (!td->o.file_size_low) { | |
340 | /* | |
341 | * no file size range given, file size is equal to | |
342 | * total size divided by number of files. if that is | |
343 | * zero, set it to the real file size. | |
344 | */ | |
345 | f->io_size = td->o.size / td->o.nr_files; | |
346 | if (!f->io_size) | |
347 | f->io_size = f->real_file_size; | |
348 | } else if (f->real_file_size < td->o.file_size_low || | |
349 | f->real_file_size > td->o.file_size_high) { | |
350 | /* | |
351 | * file size given. if it's fixed, use that. if it's a | |
352 | * range, generate a random size in-between. | |
353 | */ | |
354 | if (td->o.file_size_low == td->o.file_size_high) | |
355 | f->io_size = td->o.file_size_low; | |
356 | else | |
357 | f->io_size = get_rand_file_size(td); | |
358 | } else | |
359 | f->io_size = f->real_file_size; | |
53cdc686 | 360 | |
7bb48f84 JA |
361 | if (f->io_size == -1ULL) |
362 | total_size = -1ULL; | |
363 | else | |
364 | total_size += f->io_size; | |
365 | ||
366 | if (f->filetype == FIO_TYPE_FILE && | |
367 | f->io_size > f->real_file_size && | |
368 | !(td->io_ops->flags & FIO_DISKLESSIO)) { | |
369 | need_extend++; | |
370 | extend_size += f->io_size; | |
371 | f->flags |= FIO_FILE_EXTEND; | |
372 | } | |
373 | } | |
53cdc686 | 374 | |
7bb48f84 JA |
375 | if (!td->o.size) |
376 | td->o.size = total_size; | |
21972cde | 377 | |
7bb48f84 JA |
378 | /* |
379 | * See if we need to extend some files | |
380 | */ | |
381 | if (need_extend) { | |
382 | temp_stall_ts = 1; | |
383 | log_info("%s: Laying out IO file(s) (%u files / %LuMiB)\n", | |
384 | td->o.name, need_extend, extend_size >> 20); | |
385 | ||
386 | for_each_file(td, f, i) { | |
387 | if (!(f->flags & FIO_FILE_EXTEND)) | |
388 | continue; | |
389 | ||
390 | f->flags &= ~FIO_FILE_EXTEND; | |
391 | f->real_file_size = f->io_size; | |
392 | err = extend_file(td, f); | |
393 | if (err) | |
394 | break; | |
395 | } | |
396 | temp_stall_ts = 0; | |
397 | } | |
398 | ||
399 | if (err) | |
400 | return err; | |
401 | ||
402 | if (!td->o.zone_size) | |
403 | td->o.zone_size = td->o.size; | |
404 | ||
405 | td->total_io_size = td->o.size * td->o.loops; | |
406 | return 0; | |
53cdc686 JA |
407 | } |
408 | ||
68727076 JA |
409 | int init_random_map(struct thread_data *td) |
410 | { | |
411 | int num_maps, blocks; | |
412 | struct fio_file *f; | |
413 | unsigned int i; | |
414 | ||
415 | if (td->o.norandommap) | |
416 | return 0; | |
417 | ||
418 | for_each_file(td, f, i) { | |
419 | blocks = (f->real_file_size + td->o.rw_min_bs - 1) / td->o.rw_min_bs; | |
420 | num_maps = (blocks + BLOCKS_PER_MAP-1)/ BLOCKS_PER_MAP; | |
421 | f->file_map = malloc(num_maps * sizeof(long)); | |
422 | if (!f->file_map) { | |
423 | log_err("fio: failed allocating random map. If running a large number of jobs, try the 'norandommap' option\n"); | |
424 | return 1; | |
425 | } | |
426 | f->num_maps = num_maps; | |
427 | memset(f->file_map, 0, num_maps * sizeof(long)); | |
428 | } | |
429 | ||
430 | return 0; | |
431 | } | |
432 | ||
53cdc686 JA |
433 | void close_files(struct thread_data *td) |
434 | { | |
0ab8db89 | 435 | struct fio_file *f; |
af52b345 | 436 | unsigned int i; |
53cdc686 | 437 | |
0ab8db89 | 438 | for_each_file(td, f, i) { |
fa1da865 JA |
439 | if ((f->flags & FIO_FILE_UNLINK) && |
440 | f->filetype == FIO_TYPE_FILE) | |
132ad46d | 441 | unlink(f->file_name); |
bdb4e2e9 | 442 | |
b5af8293 | 443 | td_io_close_file(td, f); |
b3dc7f07 | 444 | |
fa1da865 JA |
445 | free(f->file_name); |
446 | f->file_name = NULL; | |
447 | ||
c343981b | 448 | if (f->file_map) { |
b3dc7f07 | 449 | free(f->file_map); |
c343981b JA |
450 | f->file_map = NULL; |
451 | } | |
53cdc686 | 452 | } |
b4a6a59a | 453 | |
2dc1bbeb | 454 | td->o.filename = NULL; |
cade3ef4 | 455 | free(td->files); |
b4a6a59a | 456 | td->files = NULL; |
2dc1bbeb | 457 | td->o.nr_files = 0; |
53cdc686 | 458 | } |
af52b345 | 459 | |
e3bab463 | 460 | static void get_file_type(struct fio_file *f) |
af52b345 JA |
461 | { |
462 | struct stat sb; | |
463 | ||
464 | f->filetype = FIO_TYPE_FILE; | |
465 | ||
e3bab463 | 466 | if (!lstat(f->file_name, &sb)) { |
af52b345 JA |
467 | if (S_ISBLK(sb.st_mode)) |
468 | f->filetype = FIO_TYPE_BD; | |
469 | else if (S_ISCHR(sb.st_mode)) | |
470 | f->filetype = FIO_TYPE_CHAR; | |
471 | } | |
472 | } | |
473 | ||
474 | void add_file(struct thread_data *td, const char *fname) | |
475 | { | |
7b4e4fe5 | 476 | int cur_files = td->files_index; |
bd0ee748 | 477 | char file_name[PATH_MAX]; |
af52b345 | 478 | struct fio_file *f; |
bd0ee748 | 479 | int len = 0; |
af52b345 JA |
480 | |
481 | td->files = realloc(td->files, (cur_files + 1) * sizeof(*f)); | |
482 | ||
483 | f = &td->files[cur_files]; | |
484 | memset(f, 0, sizeof(*f)); | |
485 | f->fd = -1; | |
bd0ee748 JA |
486 | |
487 | if (td->o.directory) | |
488 | len = sprintf(file_name, "%s/", td->o.directory); | |
489 | ||
490 | sprintf(file_name + len, "%s", fname); | |
491 | f->file_name = strdup(file_name); | |
af52b345 | 492 | |
e3bab463 | 493 | get_file_type(f); |
af52b345 | 494 | |
7b4e4fe5 | 495 | td->files_index++; |
1549441c JA |
496 | if (f->filetype == FIO_TYPE_FILE) |
497 | td->nr_normal_files++; | |
af52b345 | 498 | } |
0ad920e7 JA |
499 | |
500 | void get_file(struct fio_file *f) | |
501 | { | |
502 | f->references++; | |
503 | } | |
504 | ||
505 | void put_file(struct thread_data *td, struct fio_file *f) | |
506 | { | |
507 | if (!(f->flags & FIO_FILE_OPEN)) | |
508 | return; | |
509 | ||
510 | assert(f->references); | |
511 | if (--f->references) | |
512 | return; | |
513 | ||
2dc1bbeb | 514 | if (should_fsync(td) && td->o.fsync_on_close) |
ebb1415f JA |
515 | fsync(f->fd); |
516 | ||
0ad920e7 JA |
517 | if (td->io_ops->close_file) |
518 | td->io_ops->close_file(td, f); | |
519 | td->nr_open_files--; | |
520 | f->flags &= ~FIO_FILE_OPEN; | |
521 | } | |
bbf6b540 JA |
522 | |
523 | static int recurse_dir(struct thread_data *td, const char *dirname) | |
524 | { | |
525 | struct dirent *dir; | |
526 | int ret = 0; | |
527 | DIR *D; | |
528 | ||
529 | D = opendir(dirname); | |
530 | if (!D) { | |
0ddb270c JA |
531 | char buf[FIO_VERROR_SIZE]; |
532 | ||
533 | snprintf(buf, FIO_VERROR_SIZE - 1, "opendir(%s)", dirname); | |
534 | td_verror(td, errno, buf); | |
bbf6b540 JA |
535 | return 1; |
536 | } | |
537 | ||
538 | while ((dir = readdir(D)) != NULL) { | |
539 | char full_path[PATH_MAX]; | |
540 | struct stat sb; | |
541 | ||
e85b2b83 JA |
542 | if (!strcmp(dir->d_name, ".") || !strcmp(dir->d_name, "..")) |
543 | continue; | |
96d32d51 | 544 | |
bbf6b540 JA |
545 | sprintf(full_path, "%s/%s", dirname, dir->d_name); |
546 | ||
547 | if (lstat(full_path, &sb) == -1) { | |
548 | if (errno != ENOENT) { | |
549 | td_verror(td, errno, "stat"); | |
550 | return 1; | |
551 | } | |
552 | } | |
553 | ||
554 | if (S_ISREG(sb.st_mode)) { | |
555 | add_file(td, full_path); | |
2dc1bbeb | 556 | td->o.nr_files++; |
bbf6b540 JA |
557 | continue; |
558 | } | |
0ddb270c JA |
559 | if (!S_ISDIR(sb.st_mode)) |
560 | continue; | |
bbf6b540 | 561 | |
bbf6b540 JA |
562 | if ((ret = recurse_dir(td, full_path)) != 0) |
563 | break; | |
564 | } | |
565 | ||
566 | closedir(D); | |
567 | return ret; | |
568 | } | |
569 | ||
570 | int add_dir_files(struct thread_data *td, const char *path) | |
571 | { | |
0ddb270c JA |
572 | int ret = recurse_dir(td, path); |
573 | ||
574 | if (!ret) | |
575 | log_info("fio: opendir added %d files\n", td->o.nr_files); | |
576 | ||
577 | return ret; | |
bbf6b540 | 578 | } |
cade3ef4 JA |
579 | |
580 | void dup_files(struct thread_data *td, struct thread_data *org) | |
581 | { | |
582 | struct fio_file *f; | |
583 | unsigned int i; | |
584 | size_t bytes; | |
585 | ||
586 | if (!org->files) | |
587 | return; | |
588 | ||
589 | bytes = org->files_index * sizeof(*f); | |
590 | td->files = malloc(bytes); | |
591 | memcpy(td->files, org->files, bytes); | |
592 | ||
593 | for_each_file(td, f, i) { | |
594 | if (f->file_name) | |
595 | f->file_name = strdup(f->file_name); | |
596 | } | |
597 | } |