Commit | Line | Data |
---|---|---|
53cdc686 JA |
1 | #include <unistd.h> |
2 | #include <fcntl.h> | |
3 | #include <string.h> | |
4 | #include <assert.h> | |
bbf6b540 | 5 | #include <dirent.h> |
d74ac843 | 6 | #include <libgen.h> |
53cdc686 JA |
7 | #include <sys/stat.h> |
8 | #include <sys/mman.h> | |
bbf6b540 | 9 | #include <sys/types.h> |
53cdc686 JA |
10 | |
11 | #include "fio.h" | |
f17c4392 | 12 | #include "smalloc.h" |
4906e0b5 | 13 | #include "filehash.h" |
bcbfeefa | 14 | #include "options.h" |
ecc314ba | 15 | #include "os/os.h" |
2316296a | 16 | #include "hash.h" |
7ebd796f | 17 | #include "lib/axmap.h" |
53cdc686 | 18 | |
97ac992c | 19 | #ifdef CONFIG_LINUX_FALLOCATE |
a596f047 EG |
20 | #include <linux/falloc.h> |
21 | #endif | |
22 | ||
7172cfe8 JA |
23 | static int root_warn; |
24 | ||
bcbfeefa CE |
25 | static FLIST_HEAD(filename_list); |
26 | ||
c592b9fe JA |
27 | static inline void clear_error(struct thread_data *td) |
28 | { | |
29 | td->error = 0; | |
30 | td->verror[0] = '\0'; | |
31 | } | |
32 | ||
3baddf24 JA |
33 | /* |
34 | * Leaves f->fd open on success, caller must close | |
35 | */ | |
7bb48f84 | 36 | static int extend_file(struct thread_data *td, struct fio_file *f) |
25205e97 | 37 | { |
ea443657 | 38 | int r, new_layout = 0, unlink_file = 0, flags; |
25205e97 JA |
39 | unsigned long long left; |
40 | unsigned int bs; | |
41 | char *b; | |
b2a15192 | 42 | |
4241ea8f JA |
43 | if (read_only) { |
44 | log_err("fio: refusing extend of file due to read-only\n"); | |
45 | return 0; | |
46 | } | |
47 | ||
507a702f JA |
48 | /* |
49 | * check if we need to lay the file out complete again. fio | |
50 | * does that for operations involving reads, or for writes | |
51 | * where overwrite is set | |
52 | */ | |
ffdfabd4 JA |
53 | if (td_read(td) || (td_write(td) && td->o.overwrite) || |
54 | (td_write(td) && td->io_ops->flags & FIO_NOEXTEND)) | |
507a702f | 55 | new_layout = 1; |
ea443657 JA |
56 | if (td_write(td) && !td->o.overwrite) |
57 | unlink_file = 1; | |
507a702f | 58 | |
6ae1f57f | 59 | if (unlink_file || new_layout) { |
bd199f2b | 60 | dprint(FD_FILE, "layout unlink %s\n", f->file_name); |
982016d6 | 61 | if ((unlink(f->file_name) < 0) && (errno != ENOENT)) { |
7bb48f84 JA |
62 | td_verror(td, errno, "unlink"); |
63 | return 1; | |
64 | } | |
65 | } | |
66 | ||
507a702f JA |
67 | flags = O_WRONLY | O_CREAT; |
68 | if (new_layout) | |
69 | flags |= O_TRUNC; | |
70 | ||
ee56ad50 | 71 | dprint(FD_FILE, "open file %s, flags %x\n", f->file_name, flags); |
507a702f | 72 | f->fd = open(f->file_name, flags, 0644); |
53cdc686 | 73 | if (f->fd < 0) { |
e1161c32 | 74 | td_verror(td, errno, "open"); |
53cdc686 JA |
75 | return 1; |
76 | } | |
77 | ||
97ac992c | 78 | #ifdef CONFIG_POSIX_FALLOCATE |
a596f047 EG |
79 | if (!td->o.fill_device) { |
80 | switch (td->o.fallocate_mode) { | |
81 | case FIO_FALLOCATE_NONE: | |
82 | break; | |
83 | case FIO_FALLOCATE_POSIX: | |
84 | dprint(FD_FILE, "posix_fallocate file %s size %llu\n", | |
4b91ee8f JA |
85 | f->file_name, |
86 | (unsigned long long) f->real_file_size); | |
a596f047 EG |
87 | |
88 | r = posix_fallocate(f->fd, 0, f->real_file_size); | |
89 | if (r > 0) { | |
90 | log_err("fio: posix_fallocate fails: %s\n", | |
91 | strerror(r)); | |
92 | } | |
93 | break; | |
97ac992c | 94 | #ifdef CONFIG_LINUX_FALLOCATE |
a596f047 EG |
95 | case FIO_FALLOCATE_KEEP_SIZE: |
96 | dprint(FD_FILE, | |
97 | "fallocate(FALLOC_FL_KEEP_SIZE) " | |
4b91ee8f JA |
98 | "file %s size %llu\n", f->file_name, |
99 | (unsigned long long) f->real_file_size); | |
7bc8c2cf | 100 | |
a596f047 EG |
101 | r = fallocate(f->fd, FALLOC_FL_KEEP_SIZE, 0, |
102 | f->real_file_size); | |
888677a4 | 103 | if (r != 0) |
a596f047 | 104 | td_verror(td, errno, "fallocate"); |
888677a4 | 105 | |
a596f047 | 106 | break; |
97ac992c | 107 | #endif /* CONFIG_LINUX_FALLOCATE */ |
a596f047 EG |
108 | default: |
109 | log_err("fio: unknown fallocate mode: %d\n", | |
110 | td->o.fallocate_mode); | |
111 | assert(0); | |
7bc8c2cf JA |
112 | } |
113 | } | |
97ac992c | 114 | #endif /* CONFIG_POSIX_FALLOCATE */ |
9b836561 | 115 | |
fc74ac1d SL |
116 | if (!new_layout) |
117 | goto done; | |
118 | ||
5e0074c2 JA |
119 | /* |
120 | * The size will be -1ULL when fill_device is used, so don't truncate | |
121 | * or fallocate this file, just write it | |
122 | */ | |
123 | if (!td->o.fill_device) { | |
124 | dprint(FD_FILE, "truncate file %s, size %llu\n", f->file_name, | |
4b91ee8f | 125 | (unsigned long long) f->real_file_size); |
5e0074c2 | 126 | if (ftruncate(f->fd, f->real_file_size) == -1) { |
3cd4c66f J |
127 | if (errno != EFBIG) { |
128 | td_verror(td, errno, "ftruncate"); | |
129 | goto err; | |
130 | } | |
5e0074c2 | 131 | } |
5e0074c2 | 132 | } |
40f8298c | 133 | |
2dc1bbeb | 134 | b = malloc(td->o.max_bs[DDIR_WRITE]); |
53cdc686 | 135 | |
7bb48f84 | 136 | left = f->real_file_size; |
53cdc686 | 137 | while (left && !td->terminate) { |
2dc1bbeb | 138 | bs = td->o.max_bs[DDIR_WRITE]; |
53cdc686 JA |
139 | if (bs > left) |
140 | bs = left; | |
141 | ||
cc86c395 JA |
142 | fill_io_buffer(td, b, bs, bs); |
143 | ||
53cdc686 JA |
144 | r = write(f->fd, b, bs); |
145 | ||
5e0074c2 JA |
146 | if (r > 0) { |
147 | left -= r; | |
53cdc686 JA |
148 | continue; |
149 | } else { | |
5e0074c2 JA |
150 | if (r < 0) { |
151 | int __e = errno; | |
152 | ||
153 | if (__e == ENOSPC) { | |
154 | if (td->o.fill_device) | |
155 | break; | |
156 | log_info("fio: ENOSPC on laying out " | |
157 | "file, stopping\n"); | |
158 | break; | |
159 | } | |
e1161c32 | 160 | td_verror(td, errno, "write"); |
5e0074c2 | 161 | } else |
e1161c32 | 162 | td_verror(td, EIO, "write"); |
53cdc686 JA |
163 | |
164 | break; | |
165 | } | |
166 | } | |
167 | ||
ffdfabd4 JA |
168 | if (td->terminate) { |
169 | dprint(FD_FILE, "terminate unlink %s\n", f->file_name); | |
53cdc686 | 170 | unlink(f->file_name); |
ffdfabd4 | 171 | } else if (td->o.create_fsync) { |
98e1ac4e JA |
172 | if (fsync(f->fd) < 0) { |
173 | td_verror(td, errno, "fsync"); | |
174 | goto err; | |
175 | } | |
176 | } | |
0d1cd207 | 177 | if (td->o.fill_device && !td_write(td)) { |
d6aed795 | 178 | fio_file_clear_size_known(f); |
5e0074c2 JA |
179 | if (td_io_get_file_size(td, f)) |
180 | goto err; | |
181 | if (f->io_size > f->real_file_size) | |
182 | f->io_size = f->real_file_size; | |
183 | } | |
53cdc686 JA |
184 | |
185 | free(b); | |
507a702f | 186 | done: |
53cdc686 JA |
187 | return 0; |
188 | err: | |
189 | close(f->fd); | |
190 | f->fd = -1; | |
191 | return 1; | |
192 | } | |
193 | ||
afad68f7 ZY |
194 | static int pre_read_file(struct thread_data *td, struct fio_file *f) |
195 | { | |
b0f65863 | 196 | int r, did_open = 0, old_runstate; |
afad68f7 ZY |
197 | unsigned long long left; |
198 | unsigned int bs; | |
199 | char *b; | |
200 | ||
9c0d2241 JA |
201 | if (td->io_ops->flags & FIO_PIPEIO) |
202 | return 0; | |
203 | ||
d6aed795 | 204 | if (!fio_file_open(f)) { |
b0f65863 JA |
205 | if (td->io_ops->open_file(td, f)) { |
206 | log_err("fio: cannot pre-read, failed to open file\n"); | |
207 | return 1; | |
208 | } | |
209 | did_open = 1; | |
210 | } | |
211 | ||
212 | old_runstate = td->runstate; | |
213 | td_set_runstate(td, TD_PRE_READING); | |
214 | ||
afad68f7 ZY |
215 | bs = td->o.max_bs[DDIR_READ]; |
216 | b = malloc(bs); | |
217 | memset(b, 0, bs); | |
218 | ||
219 | lseek(f->fd, f->file_offset, SEEK_SET); | |
220 | left = f->io_size; | |
221 | ||
222 | while (left && !td->terminate) { | |
223 | if (bs > left) | |
224 | bs = left; | |
225 | ||
226 | r = read(f->fd, b, bs); | |
227 | ||
228 | if (r == (int) bs) { | |
229 | left -= bs; | |
230 | continue; | |
231 | } else { | |
232 | td_verror(td, EIO, "pre_read"); | |
233 | break; | |
234 | } | |
235 | } | |
236 | ||
b0f65863 JA |
237 | td_set_runstate(td, old_runstate); |
238 | ||
239 | if (did_open) | |
240 | td->io_ops->close_file(td, f); | |
afad68f7 ZY |
241 | free(b); |
242 | return 0; | |
243 | } | |
244 | ||
7bb48f84 | 245 | static unsigned long long get_rand_file_size(struct thread_data *td) |
9c60ce64 | 246 | { |
dc873b6f | 247 | unsigned long long ret, sized; |
1294c3ec | 248 | unsigned long r; |
9c60ce64 | 249 | |
4c07ad86 JA |
250 | if (td->o.use_os_rand) { |
251 | r = os_random_long(&td->file_size_state); | |
252 | sized = td->o.file_size_high - td->o.file_size_low; | |
253 | ret = (unsigned long long) ((double) sized * (r / (OS_RAND_MAX + 1.0))); | |
254 | } else { | |
255 | r = __rand(&td->__file_size_state); | |
256 | sized = td->o.file_size_high - td->o.file_size_low; | |
257 | ret = (unsigned long long) ((double) sized * (r / (FRAND_MAX + 1.0))); | |
258 | } | |
259 | ||
5ec10eaa | 260 | ret += td->o.file_size_low; |
2dc1bbeb | 261 | ret -= (ret % td->o.rw_min_bs); |
9c60ce64 JA |
262 | return ret; |
263 | } | |
264 | ||
53cdc686 JA |
265 | static int file_size(struct thread_data *td, struct fio_file *f) |
266 | { | |
267 | struct stat st; | |
268 | ||
df9c26b1 | 269 | if (stat(f->file_name, &st) == -1) { |
7bb48f84 JA |
270 | td_verror(td, errno, "fstat"); |
271 | return 1; | |
272 | } | |
53cdc686 | 273 | |
7bb48f84 | 274 | f->real_file_size = st.st_size; |
53cdc686 JA |
275 | return 0; |
276 | } | |
277 | ||
278 | static int bdev_size(struct thread_data *td, struct fio_file *f) | |
279 | { | |
9b836561 | 280 | unsigned long long bytes = 0; |
53cdc686 JA |
281 | int r; |
282 | ||
df9c26b1 JA |
283 | if (td->io_ops->open_file(td, f)) { |
284 | log_err("fio: failed opening blockdev %s for size check\n", | |
285 | f->file_name); | |
286 | return 1; | |
287 | } | |
288 | ||
ecc314ba | 289 | r = blockdev_size(f, &bytes); |
53cdc686 | 290 | if (r) { |
e1161c32 | 291 | td_verror(td, r, "blockdev_size"); |
df9c26b1 | 292 | goto err; |
53cdc686 JA |
293 | } |
294 | ||
7ab077ab JA |
295 | if (!bytes) { |
296 | log_err("%s: zero sized block device?\n", f->file_name); | |
df9c26b1 | 297 | goto err; |
7ab077ab JA |
298 | } |
299 | ||
53cdc686 | 300 | f->real_file_size = bytes; |
22a57ba8 | 301 | td->io_ops->close_file(td, f); |
53cdc686 | 302 | return 0; |
df9c26b1 JA |
303 | err: |
304 | td->io_ops->close_file(td, f); | |
305 | return 1; | |
53cdc686 JA |
306 | } |
307 | ||
4ccdccd1 JA |
308 | static int char_size(struct thread_data *td, struct fio_file *f) |
309 | { | |
310 | #ifdef FIO_HAVE_CHARDEV_SIZE | |
9b836561 | 311 | unsigned long long bytes = 0; |
4ccdccd1 JA |
312 | int r; |
313 | ||
314 | if (td->io_ops->open_file(td, f)) { | |
315 | log_err("fio: failed opening blockdev %s for size check\n", | |
316 | f->file_name); | |
317 | return 1; | |
318 | } | |
319 | ||
ecc314ba | 320 | r = chardev_size(f, &bytes); |
4ccdccd1 JA |
321 | if (r) { |
322 | td_verror(td, r, "chardev_size"); | |
323 | goto err; | |
324 | } | |
325 | ||
326 | if (!bytes) { | |
327 | log_err("%s: zero sized char device?\n", f->file_name); | |
328 | goto err; | |
329 | } | |
330 | ||
331 | f->real_file_size = bytes; | |
332 | td->io_ops->close_file(td, f); | |
333 | return 0; | |
334 | err: | |
335 | td->io_ops->close_file(td, f); | |
336 | return 1; | |
337 | #else | |
338 | f->real_file_size = -1ULL; | |
339 | return 0; | |
340 | #endif | |
341 | } | |
342 | ||
53cdc686 JA |
343 | static int get_file_size(struct thread_data *td, struct fio_file *f) |
344 | { | |
345 | int ret = 0; | |
346 | ||
d6aed795 | 347 | if (fio_file_size_known(f)) |
409b3417 JA |
348 | return 0; |
349 | ||
7bb48f84 JA |
350 | if (f->filetype == FIO_TYPE_FILE) |
351 | ret = file_size(td, f); | |
352 | else if (f->filetype == FIO_TYPE_BD) | |
53cdc686 | 353 | ret = bdev_size(td, f); |
4ccdccd1 JA |
354 | else if (f->filetype == FIO_TYPE_CHAR) |
355 | ret = char_size(td, f); | |
53cdc686 JA |
356 | else |
357 | f->real_file_size = -1; | |
358 | ||
359 | if (ret) | |
360 | return ret; | |
361 | ||
362 | if (f->file_offset > f->real_file_size) { | |
0f2152c1 | 363 | log_err("%s: offset extends end (%llu > %llu)\n", td->o.name, |
4e0a8fa2 JA |
364 | (unsigned long long) f->file_offset, |
365 | (unsigned long long) f->real_file_size); | |
53cdc686 JA |
366 | return 1; |
367 | } | |
368 | ||
d6aed795 | 369 | fio_file_set_size_known(f); |
53cdc686 JA |
370 | return 0; |
371 | } | |
372 | ||
3baddf24 JA |
373 | static int __file_invalidate_cache(struct thread_data *td, struct fio_file *f, |
374 | unsigned long long off, | |
375 | unsigned long long len) | |
e5b401d4 JA |
376 | { |
377 | int ret = 0; | |
378 | ||
5e0074c2 | 379 | if (len == -1ULL) |
3baddf24 JA |
380 | len = f->io_size; |
381 | if (off == -1ULL) | |
382 | off = f->file_offset; | |
ee56ad50 | 383 | |
0d1cd207 JA |
384 | if (len == -1ULL || off == -1ULL) |
385 | return 0; | |
386 | ||
3baddf24 JA |
387 | dprint(FD_IO, "invalidate cache %s: %llu/%llu\n", f->file_name, off, |
388 | len); | |
b5af8293 | 389 | |
e5b401d4 JA |
390 | /* |
391 | * FIXME: add blockdev flushing too | |
392 | */ | |
a1c58075 | 393 | if (f->mmap_ptr) { |
03e20d68 | 394 | ret = posix_madvise(f->mmap_ptr, f->mmap_sz, POSIX_MADV_DONTNEED); |
a1c58075 | 395 | #ifdef FIO_MADV_FREE |
3e10fb83 JA |
396 | if (f->filetype == FIO_TYPE_BD) |
397 | (void) posix_madvise(f->mmap_ptr, f->mmap_sz, FIO_MADV_FREE); | |
a1c58075 JA |
398 | #endif |
399 | } else if (f->filetype == FIO_TYPE_FILE) { | |
ecc314ba | 400 | ret = posix_fadvise(f->fd, off, len, POSIX_FADV_DONTNEED); |
5ec10eaa | 401 | } else if (f->filetype == FIO_TYPE_BD) { |
ecc314ba | 402 | ret = blockdev_invalidate_cache(f); |
7e0e25c9 | 403 | if (ret < 0 && errno == EACCES && geteuid()) { |
7172cfe8 | 404 | if (!root_warn) { |
5ec10eaa JA |
405 | log_err("fio: only root may flush block " |
406 | "devices. Cache flush bypassed!\n"); | |
7172cfe8 JA |
407 | root_warn = 1; |
408 | } | |
7e0e25c9 JA |
409 | ret = 0; |
410 | } | |
b5605e9d | 411 | } else if (f->filetype == FIO_TYPE_CHAR || f->filetype == FIO_TYPE_PIPE) |
e5b401d4 JA |
412 | ret = 0; |
413 | ||
414 | if (ret < 0) { | |
e1161c32 | 415 | td_verror(td, errno, "invalidate_cache"); |
e5b401d4 | 416 | return 1; |
3baddf24 JA |
417 | } else if (ret > 0) { |
418 | td_verror(td, ret, "invalidate_cache"); | |
419 | return 1; | |
e5b401d4 JA |
420 | } |
421 | ||
ad2da605 | 422 | return ret; |
3baddf24 JA |
423 | |
424 | } | |
425 | ||
426 | int file_invalidate_cache(struct thread_data *td, struct fio_file *f) | |
427 | { | |
d6aed795 | 428 | if (!fio_file_open(f)) |
a5fb461f JA |
429 | return 0; |
430 | ||
5e0074c2 | 431 | return __file_invalidate_cache(td, f, -1ULL, -1ULL); |
e5b401d4 JA |
432 | } |
433 | ||
6977bcd0 | 434 | int generic_close_file(struct thread_data fio_unused *td, struct fio_file *f) |
53cdc686 | 435 | { |
6977bcd0 JA |
436 | int ret = 0; |
437 | ||
ee56ad50 | 438 | dprint(FD_FILE, "fd close %s\n", f->file_name); |
4906e0b5 JA |
439 | |
440 | remove_file_hash(f); | |
441 | ||
6977bcd0 JA |
442 | if (close(f->fd) < 0) |
443 | ret = errno; | |
444 | ||
b5af8293 | 445 | f->fd = -1; |
e6c4d732 JA |
446 | |
447 | if (f->shadow_fd != -1) { | |
448 | close(f->shadow_fd); | |
449 | f->shadow_fd = -1; | |
450 | } | |
451 | ||
57e54e08 | 452 | f->engine_data = 0; |
6977bcd0 | 453 | return ret; |
53cdc686 JA |
454 | } |
455 | ||
1ccc6dc7 | 456 | int file_lookup_open(struct fio_file *f, int flags) |
53cdc686 | 457 | { |
29c1349f | 458 | struct fio_file *__f; |
4d4e80f2 JA |
459 | int from_hash; |
460 | ||
461 | __f = lookup_file_hash(f->file_name); | |
462 | if (__f) { | |
9efef3c4 | 463 | dprint(FD_FILE, "found file in hash %s\n", f->file_name); |
4d4e80f2 JA |
464 | /* |
465 | * racy, need the __f->lock locked | |
466 | */ | |
467 | f->lock = __f->lock; | |
4d4e80f2 JA |
468 | from_hash = 1; |
469 | } else { | |
9efef3c4 | 470 | dprint(FD_FILE, "file not found in hash %s\n", f->file_name); |
4d4e80f2 JA |
471 | from_hash = 0; |
472 | } | |
473 | ||
e8670ef8 | 474 | f->fd = open(f->file_name, flags, 0600); |
4d4e80f2 JA |
475 | return from_hash; |
476 | } | |
477 | ||
e6c4d732 JA |
478 | static int file_close_shadow_fds(struct thread_data *td) |
479 | { | |
480 | struct fio_file *f; | |
481 | int num_closed = 0; | |
482 | unsigned int i; | |
483 | ||
484 | for_each_file(td, f, i) { | |
485 | if (f->shadow_fd == -1) | |
486 | continue; | |
487 | ||
488 | close(f->shadow_fd); | |
489 | f->shadow_fd = -1; | |
490 | num_closed++; | |
491 | } | |
492 | ||
493 | return num_closed; | |
494 | } | |
495 | ||
4d4e80f2 JA |
496 | int generic_open_file(struct thread_data *td, struct fio_file *f) |
497 | { | |
66159828 | 498 | int is_std = 0; |
53cdc686 | 499 | int flags = 0; |
29c1349f | 500 | int from_hash = 0; |
53cdc686 | 501 | |
ee56ad50 JA |
502 | dprint(FD_FILE, "fd open %s\n", f->file_name); |
503 | ||
6eaf09d6 SL |
504 | if (td_trim(td) && f->filetype != FIO_TYPE_BD) { |
505 | log_err("fio: trim only applies to block device\n"); | |
506 | return 1; | |
507 | } | |
508 | ||
66159828 JA |
509 | if (!strcmp(f->file_name, "-")) { |
510 | if (td_rw(td)) { | |
511 | log_err("fio: can't read/write to stdin/out\n"); | |
512 | return 1; | |
513 | } | |
514 | is_std = 1; | |
ce98fa66 JA |
515 | |
516 | /* | |
517 | * move output logging to stderr, if we are writing to stdout | |
518 | */ | |
519 | if (td_write(td)) | |
520 | f_out = stderr; | |
66159828 JA |
521 | } |
522 | ||
6eaf09d6 SL |
523 | if (td_trim(td)) |
524 | goto skip_flags; | |
2dc1bbeb | 525 | if (td->o.odirect) |
2fd233b7 | 526 | flags |= OS_O_DIRECT; |
d01612f3 CM |
527 | if (td->o.oatomic) { |
528 | if (!FIO_O_ATOMIC) { | |
529 | td_verror(td, EINVAL, "OS does not support atomic IO"); | |
530 | return 1; | |
531 | } | |
532 | flags |= OS_O_DIRECT | FIO_O_ATOMIC; | |
533 | } | |
2dc1bbeb | 534 | if (td->o.sync_io) |
2fd233b7 | 535 | flags |= O_SYNC; |
814452bd JA |
536 | if (td->o.create_on_open) |
537 | flags |= O_CREAT; | |
6eaf09d6 SL |
538 | skip_flags: |
539 | if (f->filetype != FIO_TYPE_FILE) | |
540 | flags |= FIO_O_NOATIME; | |
53cdc686 | 541 | |
056f3459 | 542 | open_again: |
660a1cb5 | 543 | if (td_write(td)) { |
17308158 JA |
544 | if (!read_only) |
545 | flags |= O_RDWR; | |
53cdc686 | 546 | |
af52b345 | 547 | if (f->filetype == FIO_TYPE_FILE) |
2fd233b7 | 548 | flags |= O_CREAT; |
2fd233b7 | 549 | |
66159828 JA |
550 | if (is_std) |
551 | f->fd = dup(STDOUT_FILENO); | |
4d4e80f2 JA |
552 | else |
553 | from_hash = file_lookup_open(f, flags); | |
6eaf09d6 | 554 | } else if (td_read(td)) { |
4241ea8f | 555 | if (f->filetype == FIO_TYPE_CHAR && !read_only) |
2fd233b7 JA |
556 | flags |= O_RDWR; |
557 | else | |
558 | flags |= O_RDONLY; | |
559 | ||
66159828 JA |
560 | if (is_std) |
561 | f->fd = dup(STDIN_FILENO); | |
4d4e80f2 JA |
562 | else |
563 | from_hash = file_lookup_open(f, flags); | |
6eaf09d6 SL |
564 | } else { //td trim |
565 | flags |= O_RDWR; | |
566 | from_hash = file_lookup_open(f, flags); | |
53cdc686 JA |
567 | } |
568 | ||
569 | if (f->fd == -1) { | |
e4e33258 | 570 | char buf[FIO_VERROR_SIZE]; |
e1161c32 JA |
571 | int __e = errno; |
572 | ||
835d9b9e | 573 | if (__e == EPERM && (flags & FIO_O_NOATIME)) { |
5921e80c | 574 | flags &= ~FIO_O_NOATIME; |
056f3459 AC |
575 | goto open_again; |
576 | } | |
e6c4d732 JA |
577 | if (__e == EMFILE && file_close_shadow_fds(td)) |
578 | goto open_again; | |
056f3459 | 579 | |
98ffb8f3 | 580 | snprintf(buf, sizeof(buf), "open(%s)", f->file_name); |
e4e33258 | 581 | |
a93c5f04 JA |
582 | if (__e == EINVAL && (flags & OS_O_DIRECT)) { |
583 | log_err("fio: looks like your file system does not " \ | |
584 | "support direct=1/buffered=0\n"); | |
585 | } | |
586 | ||
e4e33258 | 587 | td_verror(td, __e, buf); |
53cdc686 JA |
588 | } |
589 | ||
29c1349f JA |
590 | if (!from_hash && f->fd != -1) { |
591 | if (add_file_hash(f)) { | |
3f0ca9b9 | 592 | int fio_unused ret; |
29c1349f JA |
593 | |
594 | /* | |
e6c4d732 JA |
595 | * Stash away descriptor for later close. This is to |
596 | * work-around a "feature" on Linux, where a close of | |
597 | * an fd that has been opened for write will trigger | |
598 | * udev to call blkid to check partitions, fs id, etc. | |
de8f6de9 | 599 | * That pollutes the device cache, which can slow down |
e6c4d732 | 600 | * unbuffered accesses. |
29c1349f | 601 | */ |
e6c4d732 JA |
602 | if (f->shadow_fd == -1) |
603 | f->shadow_fd = f->fd; | |
604 | else { | |
605 | /* | |
606 | * OK to ignore, we haven't done anything | |
607 | * with it | |
608 | */ | |
609 | ret = generic_close_file(td, f); | |
610 | } | |
29c1349f JA |
611 | goto open_again; |
612 | } | |
613 | } | |
4906e0b5 | 614 | |
53cdc686 | 615 | return 0; |
b5af8293 JA |
616 | } |
617 | ||
df9c26b1 | 618 | int generic_get_file_size(struct thread_data *td, struct fio_file *f) |
21972cde | 619 | { |
df9c26b1 | 620 | return get_file_size(td, f); |
21972cde JA |
621 | } |
622 | ||
7bb48f84 JA |
623 | /* |
624 | * open/close all files, so that ->real_file_size gets set | |
625 | */ | |
bab3fd58 | 626 | static int get_file_sizes(struct thread_data *td) |
7bb48f84 JA |
627 | { |
628 | struct fio_file *f; | |
629 | unsigned int i; | |
bab3fd58 | 630 | int err = 0; |
7bb48f84 JA |
631 | |
632 | for_each_file(td, f, i) { | |
5ec10eaa JA |
633 | dprint(FD_FILE, "get file size for %p/%d/%p\n", f, i, |
634 | f->file_name); | |
9efef3c4 | 635 | |
99a47c69 | 636 | if (td_io_get_file_size(td, f)) { |
40b44f4a JA |
637 | if (td->error != ENOENT) { |
638 | log_err("%s\n", td->verror); | |
639 | err = 1; | |
640 | } | |
541d66d7 | 641 | clear_error(td); |
07eb79df | 642 | } |
409b3417 JA |
643 | |
644 | if (f->real_file_size == -1ULL && td->o.size) | |
645 | f->real_file_size = td->o.size / td->o.nr_files; | |
7bb48f84 | 646 | } |
bab3fd58 JA |
647 | |
648 | return err; | |
7bb48f84 JA |
649 | } |
650 | ||
2e3bd4c2 JA |
651 | struct fio_mount { |
652 | struct flist_head list; | |
653 | const char *base; | |
654 | char __base[256]; | |
655 | unsigned int key; | |
656 | }; | |
657 | ||
658 | /* | |
659 | * Get free number of bytes for each file on each unique mount. | |
660 | */ | |
661 | static unsigned long long get_fs_free_counts(struct thread_data *td) | |
662 | { | |
663 | struct flist_head *n, *tmp; | |
68b0316f | 664 | unsigned long long ret = 0; |
2e3bd4c2 JA |
665 | struct fio_mount *fm; |
666 | FLIST_HEAD(list); | |
667 | struct fio_file *f; | |
668 | unsigned int i; | |
669 | ||
670 | for_each_file(td, f, i) { | |
671 | struct stat sb; | |
672 | char buf[256]; | |
673 | ||
4ccdccd1 JA |
674 | if (f->filetype == FIO_TYPE_BD || f->filetype == FIO_TYPE_CHAR) { |
675 | if (f->real_file_size != -1ULL) | |
676 | ret += f->real_file_size; | |
68b0316f JA |
677 | continue; |
678 | } else if (f->filetype != FIO_TYPE_FILE) | |
679 | continue; | |
680 | ||
2e3bd4c2 JA |
681 | strcpy(buf, f->file_name); |
682 | ||
683 | if (stat(buf, &sb) < 0) { | |
684 | if (errno != ENOENT) | |
685 | break; | |
686 | strcpy(buf, "."); | |
687 | if (stat(buf, &sb) < 0) | |
688 | break; | |
689 | } | |
690 | ||
691 | fm = NULL; | |
692 | flist_for_each(n, &list) { | |
693 | fm = flist_entry(n, struct fio_mount, list); | |
694 | if (fm->key == sb.st_dev) | |
695 | break; | |
696 | ||
697 | fm = NULL; | |
698 | } | |
699 | ||
700 | if (fm) | |
701 | continue; | |
702 | ||
703 | fm = malloc(sizeof(*fm)); | |
704 | strcpy(fm->__base, buf); | |
705 | fm->base = basename(fm->__base); | |
706 | fm->key = sb.st_dev; | |
707 | flist_add(&fm->list, &list); | |
708 | } | |
709 | ||
2e3bd4c2 JA |
710 | flist_for_each_safe(n, tmp, &list) { |
711 | unsigned long long sz; | |
712 | ||
713 | fm = flist_entry(n, struct fio_mount, list); | |
714 | flist_del(&fm->list); | |
715 | ||
716 | sz = get_fs_size(fm->base); | |
717 | if (sz && sz != -1ULL) | |
718 | ret += sz; | |
719 | ||
720 | free(fm); | |
721 | } | |
722 | ||
723 | return ret; | |
724 | } | |
725 | ||
293b8c1f | 726 | uint64_t get_start_offset(struct thread_data *td) |
ce95d651 DE |
727 | { |
728 | return td->o.start_offset + | |
729 | (td->thread_number - 1) * td->o.offset_increment; | |
730 | } | |
731 | ||
7bb48f84 JA |
732 | /* |
733 | * Open the files and setup files sizes, creating files if necessary. | |
734 | */ | |
53cdc686 JA |
735 | int setup_files(struct thread_data *td) |
736 | { | |
7bb48f84 | 737 | unsigned long long total_size, extend_size; |
de98bd30 | 738 | struct thread_options *o = &td->o; |
53cdc686 | 739 | struct fio_file *f; |
002fe734 | 740 | unsigned int i, nr_fs_extra = 0; |
000b0803 | 741 | int err = 0, need_extend; |
e90391eb | 742 | int old_state; |
002fe734 JA |
743 | const unsigned int bs = td_min_bs(td); |
744 | uint64_t fs = 0; | |
53cdc686 | 745 | |
ee56ad50 JA |
746 | dprint(FD_FILE, "setup files\n"); |
747 | ||
e90391eb JA |
748 | old_state = td->runstate; |
749 | td_set_runstate(td, TD_SETTING_UP); | |
750 | ||
de98bd30 | 751 | if (o->read_iolog_file) |
25460cf6 | 752 | goto done; |
691c8fb0 | 753 | |
53cdc686 JA |
754 | /* |
755 | * if ioengine defines a setup() method, it's responsible for | |
7bb48f84 JA |
756 | * opening the files and setting f->real_file_size to indicate |
757 | * the valid range for that file. | |
53cdc686 JA |
758 | */ |
759 | if (td->io_ops->setup) | |
7bb48f84 JA |
760 | err = td->io_ops->setup(td); |
761 | else | |
bab3fd58 | 762 | err = get_file_sizes(td); |
53cdc686 | 763 | |
f1027063 | 764 | if (err) |
e90391eb | 765 | goto err_out; |
f1027063 | 766 | |
0a7eb121 | 767 | /* |
7bb48f84 JA |
768 | * check sizes. if the files/devices do not exist and the size |
769 | * isn't passed to fio, abort. | |
0a7eb121 | 770 | */ |
7bb48f84 JA |
771 | total_size = 0; |
772 | for_each_file(td, f, i) { | |
773 | if (f->real_file_size == -1ULL) | |
774 | total_size = -1ULL; | |
775 | else | |
776 | total_size += f->real_file_size; | |
777 | } | |
0a7eb121 | 778 | |
de98bd30 | 779 | if (o->fill_device) |
2e3bd4c2 JA |
780 | td->fill_device_size = get_fs_free_counts(td); |
781 | ||
7bb48f84 JA |
782 | /* |
783 | * device/file sizes are zero and no size given, punt | |
784 | */ | |
de98bd30 JA |
785 | if ((!total_size || total_size == -1ULL) && !o->size && |
786 | !(td->io_ops->flags & FIO_NOIO) && !o->fill_device && | |
787 | !(o->nr_files && (o->file_size_low || o->file_size_high))) { | |
788 | log_err("%s: you need to specify size=\n", o->name); | |
e1161c32 | 789 | td_verror(td, EINVAL, "total_file_size"); |
e90391eb | 790 | goto err_out; |
53cdc686 JA |
791 | } |
792 | ||
002fe734 JA |
793 | /* |
794 | * Calculate per-file size and potential extra size for the | |
795 | * first files, if needed. | |
796 | */ | |
797 | if (!o->file_size_low) { | |
798 | uint64_t all_fs; | |
799 | ||
800 | fs = o->size / o->nr_files; | |
801 | all_fs = fs * o->nr_files; | |
802 | ||
803 | if (all_fs < o->size) | |
804 | nr_fs_extra = (o->size - all_fs) / bs; | |
805 | } | |
806 | ||
7bb48f84 JA |
807 | /* |
808 | * now file sizes are known, so we can set ->io_size. if size= is | |
809 | * not given, ->io_size is just equal to ->real_file_size. if size | |
810 | * is given, ->io_size is size / nr_files. | |
811 | */ | |
812 | extend_size = total_size = 0; | |
813 | need_extend = 0; | |
814 | for_each_file(td, f, i) { | |
ce95d651 | 815 | f->file_offset = get_start_offset(td); |
bcdedd0a | 816 | |
de98bd30 | 817 | if (!o->file_size_low) { |
7bb48f84 JA |
818 | /* |
819 | * no file size range given, file size is equal to | |
002fe734 JA |
820 | * total size divided by number of files. If that is |
821 | * zero, set it to the real file size. If the size | |
822 | * doesn't divide nicely with the min blocksize, | |
823 | * make the first files bigger. | |
7bb48f84 | 824 | */ |
002fe734 JA |
825 | f->io_size = fs; |
826 | if (nr_fs_extra) { | |
827 | nr_fs_extra--; | |
828 | f->io_size += bs; | |
829 | } | |
830 | ||
65bdb10a | 831 | if (!f->io_size) |
273f8c91 | 832 | f->io_size = f->real_file_size - f->file_offset; |
de98bd30 JA |
833 | } else if (f->real_file_size < o->file_size_low || |
834 | f->real_file_size > o->file_size_high) { | |
835 | if (f->file_offset > o->file_size_low) | |
bcdedd0a | 836 | goto err_offset; |
7bb48f84 JA |
837 | /* |
838 | * file size given. if it's fixed, use that. if it's a | |
839 | * range, generate a random size in-between. | |
840 | */ | |
de98bd30 JA |
841 | if (o->file_size_low == o->file_size_high) |
842 | f->io_size = o->file_size_low - f->file_offset; | |
843 | else { | |
5ec10eaa JA |
844 | f->io_size = get_rand_file_size(td) |
845 | - f->file_offset; | |
846 | } | |
65bdb10a | 847 | } else |
bcdedd0a | 848 | f->io_size = f->real_file_size - f->file_offset; |
53cdc686 | 849 | |
7bb48f84 JA |
850 | if (f->io_size == -1ULL) |
851 | total_size = -1ULL; | |
4d002569 | 852 | else { |
de98bd30 JA |
853 | if (o->size_percent) |
854 | f->io_size = (f->io_size * o->size_percent) / 100; | |
7bb48f84 | 855 | total_size += f->io_size; |
4d002569 | 856 | } |
7bb48f84 JA |
857 | |
858 | if (f->filetype == FIO_TYPE_FILE && | |
bcdedd0a | 859 | (f->io_size + f->file_offset) > f->real_file_size && |
7bb48f84 | 860 | !(td->io_ops->flags & FIO_DISKLESSIO)) { |
de98bd30 | 861 | if (!o->create_on_open) { |
814452bd JA |
862 | need_extend++; |
863 | extend_size += (f->io_size + f->file_offset); | |
864 | } else | |
865 | f->real_file_size = f->io_size + f->file_offset; | |
d6aed795 | 866 | fio_file_set_extend(f); |
5ec10eaa | 867 | } |
7bb48f84 | 868 | } |
53cdc686 | 869 | |
de98bd30 JA |
870 | if (!o->size || o->size > total_size) |
871 | o->size = total_size; | |
21972cde | 872 | |
7bb48f84 JA |
873 | /* |
874 | * See if we need to extend some files | |
875 | */ | |
876 | if (need_extend) { | |
877 | temp_stall_ts = 1; | |
f3afa57e | 878 | if (output_format == FIO_OUTPUT_NORMAL) |
a7ba8c5f | 879 | log_info("%s: Laying out IO file(s) (%u file(s) /" |
de98bd30 | 880 | " %lluMB)\n", o->name, need_extend, |
a7ba8c5f | 881 | extend_size >> 20); |
7bb48f84 JA |
882 | |
883 | for_each_file(td, f, i) { | |
5e0074c2 | 884 | unsigned long long old_len = -1ULL, extend_len = -1ULL; |
3baddf24 | 885 | |
d6aed795 | 886 | if (!fio_file_extend(f)) |
7bb48f84 JA |
887 | continue; |
888 | ||
409b3417 | 889 | assert(f->filetype == FIO_TYPE_FILE); |
d6aed795 | 890 | fio_file_clear_extend(f); |
de98bd30 | 891 | if (!o->fill_device) { |
5e0074c2 | 892 | old_len = f->real_file_size; |
0b9d69ec JA |
893 | extend_len = f->io_size + f->file_offset - |
894 | old_len; | |
5e0074c2 | 895 | } |
bcdedd0a | 896 | f->real_file_size = (f->io_size + f->file_offset); |
7bb48f84 JA |
897 | err = extend_file(td, f); |
898 | if (err) | |
3baddf24 | 899 | break; |
5e0074c2 | 900 | |
3baddf24 JA |
901 | err = __file_invalidate_cache(td, f, old_len, |
902 | extend_len); | |
903 | close(f->fd); | |
904 | f->fd = -1; | |
905 | if (err) | |
7bb48f84 JA |
906 | break; |
907 | } | |
908 | temp_stall_ts = 0; | |
909 | } | |
910 | ||
911 | if (err) | |
e90391eb | 912 | goto err_out; |
7bb48f84 | 913 | |
de98bd30 JA |
914 | if (!o->zone_size) |
915 | o->zone_size = o->size; | |
7bb48f84 | 916 | |
ea966f81 JA |
917 | /* |
918 | * iolog already set the total io size, if we read back | |
919 | * stored entries. | |
920 | */ | |
de98bd30 JA |
921 | if (!o->read_iolog_file) |
922 | td->total_io_size = o->size * o->loops; | |
25460cf6 JA |
923 | |
924 | done: | |
de98bd30 | 925 | if (o->create_only) |
25460cf6 JA |
926 | td->done = 1; |
927 | ||
e90391eb | 928 | td_set_runstate(td, old_state); |
7bb48f84 | 929 | return 0; |
bcdedd0a | 930 | err_offset: |
de98bd30 | 931 | log_err("%s: you need to specify valid offset=\n", o->name); |
e90391eb JA |
932 | err_out: |
933 | td_set_runstate(td, old_state); | |
bcdedd0a | 934 | return 1; |
53cdc686 JA |
935 | } |
936 | ||
afad68f7 ZY |
937 | int pre_read_files(struct thread_data *td) |
938 | { | |
939 | struct fio_file *f; | |
940 | unsigned int i; | |
941 | ||
942 | dprint(FD_FILE, "pre_read files\n"); | |
943 | ||
944 | for_each_file(td, f, i) { | |
945 | pre_read_file(td, f); | |
946 | } | |
947 | ||
948 | return 1; | |
949 | } | |
950 | ||
9c6f6316 JA |
951 | static int __init_rand_distribution(struct thread_data *td, struct fio_file *f) |
952 | { | |
2316296a | 953 | unsigned int range_size, seed; |
9c6f6316 | 954 | unsigned long nranges; |
21415db9 | 955 | uint64_t file_size; |
9c6f6316 JA |
956 | |
957 | range_size = min(td->o.min_bs[DDIR_READ], td->o.min_bs[DDIR_WRITE]); | |
21415db9 | 958 | file_size = min(f->real_file_size, f->io_size); |
9c6f6316 | 959 | |
21415db9 | 960 | nranges = (file_size + range_size - 1) / range_size; |
9c6f6316 | 961 | |
2316296a | 962 | seed = jhash(f->file_name, strlen(f->file_name), 0) * td->thread_number; |
8425687e JA |
963 | if (!td->o.rand_repeatable) |
964 | seed = td->rand_seeds[4]; | |
965 | ||
9c6f6316 | 966 | if (td->o.random_distribution == FIO_RAND_DIST_ZIPF) |
888677a4 | 967 | zipf_init(&f->zipf, nranges, td->o.zipf_theta.u.f, seed); |
9c6f6316 | 968 | else |
888677a4 | 969 | pareto_init(&f->zipf, nranges, td->o.pareto_h.u.f, seed); |
9c6f6316 JA |
970 | |
971 | return 1; | |
972 | } | |
973 | ||
974 | static int init_rand_distribution(struct thread_data *td) | |
975 | { | |
976 | struct fio_file *f; | |
977 | unsigned int i; | |
978 | int state; | |
979 | ||
980 | if (td->o.random_distribution == FIO_RAND_DIST_RANDOM) | |
981 | return 0; | |
982 | ||
983 | state = td->runstate; | |
984 | td_set_runstate(td, TD_SETTING_UP); | |
985 | for_each_file(td, f, i) | |
986 | __init_rand_distribution(td, f); | |
987 | td_set_runstate(td, state); | |
988 | ||
989 | return 1; | |
990 | } | |
991 | ||
68727076 JA |
992 | int init_random_map(struct thread_data *td) |
993 | { | |
51ede0b1 | 994 | unsigned long long blocks; |
68727076 JA |
995 | struct fio_file *f; |
996 | unsigned int i; | |
997 | ||
9c6f6316 JA |
998 | if (init_rand_distribution(td)) |
999 | return 0; | |
3831a843 | 1000 | if (!td_random(td)) |
68727076 JA |
1001 | return 0; |
1002 | ||
1003 | for_each_file(td, f, i) { | |
38f30c81 JA |
1004 | uint64_t file_size = min(f->real_file_size, f->io_size); |
1005 | ||
53737ae0 JA |
1006 | blocks = file_size / (unsigned long long) td->o.rw_min_bs; |
1007 | ||
8055e41d | 1008 | if (td->o.random_generator == FIO_RAND_GEN_LFSR) { |
82af46be JA |
1009 | unsigned long seed; |
1010 | ||
1011 | seed = td->rand_seeds[FIO_RAND_BLOCK_OFF]; | |
1012 | ||
d474cbc9 | 1013 | if (!lfsr_init(&f->lfsr, blocks, seed, seed & 0xF)) |
8055e41d | 1014 | continue; |
3831a843 | 1015 | } else if (!td->o.norandommap) { |
7ebd796f JA |
1016 | f->io_axmap = axmap_new(blocks); |
1017 | if (f->io_axmap) | |
8055e41d | 1018 | continue; |
1cad7121 JA |
1019 | } else if (td->o.norandommap) |
1020 | continue; | |
ceadd59e | 1021 | |
2b386d25 | 1022 | if (!td->o.softrandommap) { |
5ec10eaa JA |
1023 | log_err("fio: failed allocating random map. If running" |
1024 | " a large number of jobs, try the 'norandommap'" | |
2b386d25 JA |
1025 | " option or set 'softrandommap'. Or give" |
1026 | " a larger --alloc-size to fio.\n"); | |
68727076 JA |
1027 | return 1; |
1028 | } | |
303032ae JA |
1029 | |
1030 | log_info("fio: file %s failed allocating random map. Running " | |
1031 | "job without.\n", f->file_name); | |
68727076 JA |
1032 | } |
1033 | ||
1034 | return 0; | |
1035 | } | |
1036 | ||
53cdc686 JA |
1037 | void close_files(struct thread_data *td) |
1038 | { | |
0ab8db89 | 1039 | struct fio_file *f; |
af52b345 | 1040 | unsigned int i; |
53cdc686 | 1041 | |
2be3eec3 JA |
1042 | for_each_file(td, f, i) { |
1043 | if (fio_file_open(f)) | |
1044 | td_io_close_file(td, f); | |
1045 | } | |
24ffd2c2 JA |
1046 | } |
1047 | ||
1048 | void close_and_free_files(struct thread_data *td) | |
1049 | { | |
1050 | struct fio_file *f; | |
1051 | unsigned int i; | |
1052 | ||
ee56ad50 JA |
1053 | dprint(FD_FILE, "close files\n"); |
1054 | ||
0ab8db89 | 1055 | for_each_file(td, f, i) { |
ffdfabd4 JA |
1056 | if (td->o.unlink && f->filetype == FIO_TYPE_FILE) { |
1057 | dprint(FD_FILE, "free unlink %s\n", f->file_name); | |
132ad46d | 1058 | unlink(f->file_name); |
ffdfabd4 | 1059 | } |
bdb4e2e9 | 1060 | |
22a57ba8 JA |
1061 | if (fio_file_open(f)) |
1062 | td_io_close_file(td, f); | |
1063 | ||
b9fbcf21 | 1064 | remove_file_hash(f); |
b3dc7f07 | 1065 | |
f17c4392 | 1066 | sfree(f->file_name); |
fa1da865 | 1067 | f->file_name = NULL; |
7ebd796f JA |
1068 | axmap_free(f->io_axmap); |
1069 | f->io_axmap = NULL; | |
78d99e6a | 1070 | sfree(f); |
53cdc686 | 1071 | } |
b4a6a59a | 1072 | |
2dc1bbeb | 1073 | td->o.filename = NULL; |
cade3ef4 | 1074 | free(td->files); |
d7df1d13 | 1075 | free(td->file_locks); |
9efef3c4 | 1076 | td->files_index = 0; |
b4a6a59a | 1077 | td->files = NULL; |
d7df1d13 | 1078 | td->file_locks = NULL; |
27ddbfa0 | 1079 | td->o.file_lock_mode = FILE_LOCK_NONE; |
2dc1bbeb | 1080 | td->o.nr_files = 0; |
53cdc686 | 1081 | } |
af52b345 | 1082 | |
e3bab463 | 1083 | static void get_file_type(struct fio_file *f) |
af52b345 JA |
1084 | { |
1085 | struct stat sb; | |
1086 | ||
66159828 JA |
1087 | if (!strcmp(f->file_name, "-")) |
1088 | f->filetype = FIO_TYPE_PIPE; | |
1089 | else | |
1090 | f->filetype = FIO_TYPE_FILE; | |
af52b345 | 1091 | |
3892182a BC |
1092 | /* \\.\ is the device namespace in Windows, where every file is |
1093 | * a block device */ | |
1094 | if (strncmp(f->file_name, "\\\\.\\", 4) == 0) | |
1095 | f->filetype = FIO_TYPE_BD; | |
1096 | ||
b30d395e | 1097 | if (!stat(f->file_name, &sb)) { |
3892182a | 1098 | if (S_ISBLK(sb.st_mode)) |
af52b345 JA |
1099 | f->filetype = FIO_TYPE_BD; |
1100 | else if (S_ISCHR(sb.st_mode)) | |
1101 | f->filetype = FIO_TYPE_CHAR; | |
b5605e9d JA |
1102 | else if (S_ISFIFO(sb.st_mode)) |
1103 | f->filetype = FIO_TYPE_PIPE; | |
af52b345 JA |
1104 | } |
1105 | } | |
1106 | ||
bcbfeefa CE |
1107 | static void set_already_allocated(const char *fname) { |
1108 | struct file_name *fn; | |
1109 | ||
1110 | fn = malloc(sizeof(struct file_name)); | |
1111 | fn->filename = strdup(fname); | |
1112 | flist_add_tail(&fn->list, &filename_list); | |
1113 | } | |
1114 | ||
1115 | static int is_already_allocated(const char *fname) | |
1116 | { | |
1117 | struct flist_head *entry; | |
1118 | char *filename; | |
1119 | ||
1120 | if (!flist_empty(&filename_list)) | |
1121 | { | |
1122 | flist_for_each(entry, &filename_list) { | |
1123 | filename = flist_entry(entry, struct file_name, list)->filename; | |
1124 | ||
1125 | if (strcmp(filename, fname) == 0) | |
1126 | return 1; | |
1127 | } | |
1128 | } | |
1129 | ||
1130 | return 0; | |
1131 | } | |
1132 | ||
1133 | static void free_already_allocated() { | |
1134 | struct flist_head *entry, *tmp; | |
1135 | struct file_name *fn; | |
1136 | ||
1137 | if (!flist_empty(&filename_list)) | |
1138 | { | |
1139 | flist_for_each_safe(entry, tmp, &filename_list) { | |
1140 | fn = flist_entry(entry, struct file_name, list); | |
1141 | free(fn->filename); | |
1142 | flist_del(&fn->list); | |
1143 | free(fn); | |
1144 | } | |
1145 | } | |
1146 | } | |
1147 | ||
1148 | int add_file(struct thread_data *td, const char *fname, int numjob) | |
af52b345 | 1149 | { |
7b4e4fe5 | 1150 | int cur_files = td->files_index; |
bd0ee748 | 1151 | char file_name[PATH_MAX]; |
af52b345 | 1152 | struct fio_file *f; |
bd0ee748 | 1153 | int len = 0; |
af52b345 | 1154 | |
ee56ad50 JA |
1155 | dprint(FD_FILE, "add file %s\n", fname); |
1156 | ||
bcbfeefa CE |
1157 | if (td->o.directory) |
1158 | len = set_name_idx(file_name, td->o.directory, numjob); | |
1159 | ||
1160 | sprintf(file_name + len, "%s", fname); | |
1161 | ||
1162 | /* clean cloned siblings using existing files */ | |
1163 | if (numjob && is_already_allocated(file_name)) | |
1164 | return 0; | |
1165 | ||
f17c4392 | 1166 | f = smalloc(sizeof(*f)); |
c48c0be7 JA |
1167 | if (!f) { |
1168 | log_err("fio: smalloc OOM\n"); | |
1169 | assert(0); | |
1170 | } | |
0b9d69ec | 1171 | |
af52b345 | 1172 | f->fd = -1; |
e6c4d732 | 1173 | f->shadow_fd = -1; |
33c48814 | 1174 | fio_file_reset(td, f); |
bd0ee748 | 1175 | |
fc99bc0d | 1176 | if (td->files_size <= td->files_index) { |
1983e327 | 1177 | unsigned int new_size = td->o.nr_files + 1; |
126d65c6 | 1178 | |
fc99bc0d JA |
1179 | dprint(FD_FILE, "resize file array to %d files\n", new_size); |
1180 | ||
1181 | td->files = realloc(td->files, new_size * sizeof(f)); | |
d537c08b JM |
1182 | if (td->files == NULL) { |
1183 | log_err("fio: realloc OOM\n"); | |
1184 | assert(0); | |
1185 | } | |
d7df1d13 JA |
1186 | if (td->o.file_lock_mode != FILE_LOCK_NONE) { |
1187 | td->file_locks = realloc(td->file_locks, new_size); | |
1188 | if (!td->file_locks) { | |
1189 | log_err("fio: realloc OOM\n"); | |
1190 | assert(0); | |
1191 | } | |
1192 | td->file_locks[cur_files] = FILE_LOCK_NONE; | |
1193 | } | |
fc99bc0d JA |
1194 | td->files_size = new_size; |
1195 | } | |
8bb7679e | 1196 | td->files[cur_files] = f; |
89ac1d48 | 1197 | f->fileno = cur_files; |
126d65c6 | 1198 | |
07eb79df JA |
1199 | /* |
1200 | * init function, io engine may not be loaded yet | |
1201 | */ | |
1202 | if (td->io_ops && (td->io_ops->flags & FIO_DISKLESSIO)) | |
1203 | f->real_file_size = -1ULL; | |
1204 | ||
f17c4392 | 1205 | f->file_name = smalloc_strdup(file_name); |
c48c0be7 JA |
1206 | if (!f->file_name) { |
1207 | log_err("fio: smalloc OOM\n"); | |
1208 | assert(0); | |
1209 | } | |
0b9d69ec | 1210 | |
e3bab463 | 1211 | get_file_type(f); |
af52b345 | 1212 | |
4d4e80f2 JA |
1213 | switch (td->o.file_lock_mode) { |
1214 | case FILE_LOCK_NONE: | |
1215 | break; | |
1216 | case FILE_LOCK_READWRITE: | |
d7df1d13 | 1217 | f->rwlock = fio_rwlock_init(); |
4d4e80f2 JA |
1218 | break; |
1219 | case FILE_LOCK_EXCLUSIVE: | |
521da527 | 1220 | f->lock = fio_mutex_init(FIO_MUTEX_UNLOCKED); |
4d4e80f2 JA |
1221 | break; |
1222 | default: | |
1223 | log_err("fio: unknown lock mode: %d\n", td->o.file_lock_mode); | |
1224 | assert(0); | |
1225 | } | |
29c1349f | 1226 | |
7b4e4fe5 | 1227 | td->files_index++; |
1549441c JA |
1228 | if (f->filetype == FIO_TYPE_FILE) |
1229 | td->nr_normal_files++; | |
f29b25a3 | 1230 | |
bcbfeefa CE |
1231 | set_already_allocated(file_name); |
1232 | ||
5ec10eaa JA |
1233 | dprint(FD_FILE, "file %p \"%s\" added at %d\n", f, f->file_name, |
1234 | cur_files); | |
9efef3c4 | 1235 | |
f29b25a3 | 1236 | return cur_files; |
af52b345 | 1237 | } |
0ad920e7 | 1238 | |
49ffb4a2 JA |
1239 | int add_file_exclusive(struct thread_data *td, const char *fname) |
1240 | { | |
1241 | struct fio_file *f; | |
1242 | unsigned int i; | |
1243 | ||
1244 | for_each_file(td, f, i) { | |
1245 | if (!strcmp(f->file_name, fname)) | |
1246 | return i; | |
1247 | } | |
1248 | ||
bcbfeefa | 1249 | return add_file(td, fname, 0); |
49ffb4a2 JA |
1250 | } |
1251 | ||
0ad920e7 JA |
1252 | void get_file(struct fio_file *f) |
1253 | { | |
8172fe97 | 1254 | dprint(FD_FILE, "get file %s, ref=%d\n", f->file_name, f->references); |
d6aed795 | 1255 | assert(fio_file_open(f)); |
0ad920e7 JA |
1256 | f->references++; |
1257 | } | |
1258 | ||
6977bcd0 | 1259 | int put_file(struct thread_data *td, struct fio_file *f) |
0ad920e7 | 1260 | { |
98e1ac4e | 1261 | int f_ret = 0, ret = 0; |
6977bcd0 | 1262 | |
8172fe97 | 1263 | dprint(FD_FILE, "put file %s, ref=%d\n", f->file_name, f->references); |
ee56ad50 | 1264 | |
22a57ba8 JA |
1265 | if (!fio_file_open(f)) { |
1266 | assert(f->fd == -1); | |
6977bcd0 | 1267 | return 0; |
22a57ba8 | 1268 | } |
0ad920e7 JA |
1269 | |
1270 | assert(f->references); | |
1271 | if (--f->references) | |
6977bcd0 | 1272 | return 0; |
0ad920e7 | 1273 | |
d424d4dd | 1274 | if (should_fsync(td) && td->o.fsync_on_close) |
98e1ac4e | 1275 | f_ret = fsync(f->fd); |
ebb1415f | 1276 | |
0ad920e7 | 1277 | if (td->io_ops->close_file) |
6977bcd0 | 1278 | ret = td->io_ops->close_file(td, f); |
1020a139 | 1279 | |
98e1ac4e | 1280 | if (!ret) |
a5fb461f | 1281 | ret = f_ret; |
98e1ac4e | 1282 | |
0ad920e7 | 1283 | td->nr_open_files--; |
d6aed795 | 1284 | fio_file_clear_open(f); |
22a57ba8 | 1285 | assert(f->fd == -1); |
6977bcd0 | 1286 | return ret; |
0ad920e7 | 1287 | } |
bbf6b540 | 1288 | |
4d4e80f2 | 1289 | void lock_file(struct thread_data *td, struct fio_file *f, enum fio_ddir ddir) |
b2bd2bd9 | 1290 | { |
4d4e80f2 JA |
1291 | if (!f->lock || td->o.file_lock_mode == FILE_LOCK_NONE) |
1292 | return; | |
29c1349f | 1293 | |
4d4e80f2 JA |
1294 | if (td->o.file_lock_mode == FILE_LOCK_READWRITE) { |
1295 | if (ddir == DDIR_READ) | |
d7df1d13 | 1296 | fio_rwlock_read(f->rwlock); |
4d4e80f2 | 1297 | else |
d7df1d13 | 1298 | fio_rwlock_write(f->rwlock); |
4d4e80f2 JA |
1299 | } else if (td->o.file_lock_mode == FILE_LOCK_EXCLUSIVE) |
1300 | fio_mutex_down(f->lock); | |
1301 | ||
d7df1d13 | 1302 | td->file_locks[f->fileno] = td->o.file_lock_mode; |
b2bd2bd9 JA |
1303 | } |
1304 | ||
4d4e80f2 | 1305 | void unlock_file(struct thread_data *td, struct fio_file *f) |
b2bd2bd9 | 1306 | { |
4d4e80f2 JA |
1307 | if (!f->lock || td->o.file_lock_mode == FILE_LOCK_NONE) |
1308 | return; | |
4d4e80f2 | 1309 | |
d7df1d13 JA |
1310 | if (td->o.file_lock_mode == FILE_LOCK_READWRITE) |
1311 | fio_rwlock_unlock(f->rwlock); | |
1312 | else if (td->o.file_lock_mode == FILE_LOCK_EXCLUSIVE) | |
4d4e80f2 | 1313 | fio_mutex_up(f->lock); |
d7df1d13 JA |
1314 | |
1315 | td->file_locks[f->fileno] = FILE_LOCK_NONE; | |
b2bd2bd9 JA |
1316 | } |
1317 | ||
4d4e80f2 JA |
1318 | void unlock_file_all(struct thread_data *td, struct fio_file *f) |
1319 | { | |
f2a2803a | 1320 | if (td->o.file_lock_mode == FILE_LOCK_NONE || !td->file_locks) |
27ddbfa0 | 1321 | return; |
d7df1d13 JA |
1322 | if (td->file_locks[f->fileno] != FILE_LOCK_NONE) |
1323 | unlock_file(td, f); | |
4d4e80f2 JA |
1324 | } |
1325 | ||
bbf6b540 JA |
1326 | static int recurse_dir(struct thread_data *td, const char *dirname) |
1327 | { | |
1328 | struct dirent *dir; | |
1329 | int ret = 0; | |
1330 | DIR *D; | |
1331 | ||
1332 | D = opendir(dirname); | |
1333 | if (!D) { | |
0ddb270c JA |
1334 | char buf[FIO_VERROR_SIZE]; |
1335 | ||
98ffb8f3 | 1336 | snprintf(buf, FIO_VERROR_SIZE, "opendir(%s)", dirname); |
0ddb270c | 1337 | td_verror(td, errno, buf); |
bbf6b540 JA |
1338 | return 1; |
1339 | } | |
1340 | ||
1341 | while ((dir = readdir(D)) != NULL) { | |
1342 | char full_path[PATH_MAX]; | |
1343 | struct stat sb; | |
1344 | ||
e85b2b83 JA |
1345 | if (!strcmp(dir->d_name, ".") || !strcmp(dir->d_name, "..")) |
1346 | continue; | |
96d32d51 | 1347 | |
b9fd788f | 1348 | sprintf(full_path, "%s%s%s", dirname, FIO_OS_PATH_SEPARATOR, dir->d_name); |
bbf6b540 JA |
1349 | |
1350 | if (lstat(full_path, &sb) == -1) { | |
1351 | if (errno != ENOENT) { | |
1352 | td_verror(td, errno, "stat"); | |
1353 | return 1; | |
1354 | } | |
1355 | } | |
1356 | ||
1357 | if (S_ISREG(sb.st_mode)) { | |
bcbfeefa | 1358 | add_file(td, full_path, 0); |
2dc1bbeb | 1359 | td->o.nr_files++; |
bbf6b540 JA |
1360 | continue; |
1361 | } | |
0ddb270c JA |
1362 | if (!S_ISDIR(sb.st_mode)) |
1363 | continue; | |
bbf6b540 | 1364 | |
5ec10eaa JA |
1365 | ret = recurse_dir(td, full_path); |
1366 | if (ret) | |
bbf6b540 JA |
1367 | break; |
1368 | } | |
1369 | ||
1370 | closedir(D); | |
1371 | return ret; | |
1372 | } | |
1373 | ||
1374 | int add_dir_files(struct thread_data *td, const char *path) | |
1375 | { | |
0ddb270c JA |
1376 | int ret = recurse_dir(td, path); |
1377 | ||
1378 | if (!ret) | |
1379 | log_info("fio: opendir added %d files\n", td->o.nr_files); | |
1380 | ||
1381 | return ret; | |
bbf6b540 | 1382 | } |
cade3ef4 JA |
1383 | |
1384 | void dup_files(struct thread_data *td, struct thread_data *org) | |
1385 | { | |
1386 | struct fio_file *f; | |
1387 | unsigned int i; | |
9efef3c4 JA |
1388 | |
1389 | dprint(FD_FILE, "dup files: %d\n", org->files_index); | |
cade3ef4 JA |
1390 | |
1391 | if (!org->files) | |
1392 | return; | |
1393 | ||
9efef3c4 | 1394 | td->files = malloc(org->files_index * sizeof(f)); |
cade3ef4 | 1395 | |
d7df1d13 JA |
1396 | if (td->o.file_lock_mode != FILE_LOCK_NONE) |
1397 | td->file_locks = malloc(org->files_index); | |
1398 | ||
9efef3c4 | 1399 | for_each_file(org, f, i) { |
b0fe421a JA |
1400 | struct fio_file *__f; |
1401 | ||
f17c4392 | 1402 | __f = smalloc(sizeof(*__f)); |
c48c0be7 JA |
1403 | if (!__f) { |
1404 | log_err("fio: smalloc OOM\n"); | |
1405 | assert(0); | |
1406 | } | |
22a57ba8 | 1407 | __f->fd = -1; |
33c48814 | 1408 | fio_file_reset(td, __f); |
0b9d69ec | 1409 | |
bc3456fa | 1410 | if (f->file_name) { |
f17c4392 | 1411 | __f->file_name = smalloc_strdup(f->file_name); |
c48c0be7 JA |
1412 | if (!__f->file_name) { |
1413 | log_err("fio: smalloc OOM\n"); | |
1414 | assert(0); | |
1415 | } | |
0b9d69ec | 1416 | |
bc3456fa AC |
1417 | __f->filetype = f->filetype; |
1418 | } | |
b0fe421a | 1419 | |
67ad9242 JA |
1420 | if (td->o.file_lock_mode == FILE_LOCK_EXCLUSIVE) |
1421 | __f->lock = f->lock; | |
1422 | else if (td->o.file_lock_mode == FILE_LOCK_READWRITE) | |
1423 | __f->rwlock = f->rwlock; | |
1424 | ||
b0fe421a | 1425 | td->files[i] = __f; |
cade3ef4 JA |
1426 | } |
1427 | } | |
f29b25a3 JA |
1428 | |
1429 | /* | |
1430 | * Returns the index that matches the filename, or -1 if not there | |
1431 | */ | |
1432 | int get_fileno(struct thread_data *td, const char *fname) | |
1433 | { | |
1434 | struct fio_file *f; | |
1435 | unsigned int i; | |
1436 | ||
1437 | for_each_file(td, f, i) | |
1438 | if (!strcmp(f->file_name, fname)) | |
1439 | return i; | |
1440 | ||
1441 | return -1; | |
1442 | } | |
1443 | ||
1444 | /* | |
1445 | * For log usage, where we add/open/close files automatically | |
1446 | */ | |
1447 | void free_release_files(struct thread_data *td) | |
1448 | { | |
1449 | close_files(td); | |
1450 | td->files_index = 0; | |
1451 | td->nr_normal_files = 0; | |
1452 | } | |
33c48814 JA |
1453 | |
1454 | void fio_file_reset(struct thread_data *td, struct fio_file *f) | |
1455 | { | |
1456 | f->last_pos = f->file_offset; | |
1457 | f->last_start = -1ULL; | |
1458 | if (f->io_axmap) | |
1459 | axmap_reset(f->io_axmap); | |
1460 | if (td->o.random_generator == FIO_RAND_GEN_LFSR) | |
1461 | lfsr_reset(&f->lfsr, td->rand_seeds[FIO_RAND_BLOCK_OFF]); | |
1462 | } | |
002fe734 JA |
1463 | |
1464 | int fio_files_done(struct thread_data *td) | |
1465 | { | |
1466 | struct fio_file *f; | |
1467 | unsigned int i; | |
1468 | ||
1469 | for_each_file(td, f, i) | |
1470 | if (!fio_file_done(f)) | |
1471 | return 0; | |
1472 | ||
1473 | return 1; | |
1474 | } | |
bcbfeefa CE |
1475 | |
1476 | /* free memory used in initialization phase only */ | |
1477 | void filesetup_mem_free() { | |
1478 | free_already_allocated(); | |
1479 | } |