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> |
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 | ||
25205e97 JA |
13 | /* |
14 | * Check if the file exists and it's large enough. | |
15 | */ | |
16 | static int file_ok(struct thread_data *td, struct fio_file *f) | |
53cdc686 | 17 | { |
b2a15192 | 18 | struct stat st; |
53cdc686 | 19 | |
af52b345 | 20 | if (f->filetype != FIO_TYPE_FILE || |
b5af8293 | 21 | (td->io_ops->flags & FIO_DISKLESSIO)) |
b2a15192 JA |
22 | return 0; |
23 | ||
fa01d139 | 24 | if (lstat(f->file_name, &st) == -1) |
25205e97 | 25 | return 1; |
fa01d139 JA |
26 | |
27 | /* | |
28 | * if it's a special file, size is always ok for now | |
29 | */ | |
30 | if (S_ISCHR(st.st_mode) || S_ISBLK(st.st_mode)) | |
31 | return 0; | |
32 | if (st.st_size < (off_t) f->file_size) | |
25205e97 JA |
33 | return 1; |
34 | ||
35 | return 0; | |
36 | } | |
37 | ||
38 | static int create_file(struct thread_data *td, struct fio_file *f) | |
39 | { | |
40 | unsigned long long left; | |
41 | unsigned int bs; | |
42 | char *b; | |
43 | int r; | |
b2a15192 | 44 | |
53cdc686 JA |
45 | f->fd = open(f->file_name, O_WRONLY | O_CREAT | O_TRUNC, 0644); |
46 | if (f->fd < 0) { | |
e1161c32 | 47 | td_verror(td, errno, "open"); |
53cdc686 JA |
48 | return 1; |
49 | } | |
50 | ||
51 | if (ftruncate(f->fd, f->file_size) == -1) { | |
e1161c32 | 52 | td_verror(td, errno, "ftruncate"); |
53cdc686 JA |
53 | goto err; |
54 | } | |
55 | ||
40f8298c | 56 | if (posix_fallocate(f->fd, 0, f->file_size) < 0) { |
e1161c32 | 57 | td_verror(td, errno, "posix_fallocate"); |
40f8298c JA |
58 | goto err; |
59 | } | |
60 | ||
a00735e6 JA |
61 | b = malloc(td->max_bs[DDIR_WRITE]); |
62 | memset(b, 0, td->max_bs[DDIR_WRITE]); | |
53cdc686 JA |
63 | |
64 | left = f->file_size; | |
65 | while (left && !td->terminate) { | |
a00735e6 | 66 | bs = td->max_bs[DDIR_WRITE]; |
53cdc686 JA |
67 | if (bs > left) |
68 | bs = left; | |
69 | ||
70 | r = write(f->fd, b, bs); | |
71 | ||
72 | if (r == (int) bs) { | |
73 | left -= bs; | |
74 | continue; | |
75 | } else { | |
76 | if (r < 0) | |
e1161c32 | 77 | td_verror(td, errno, "write"); |
53cdc686 | 78 | else |
e1161c32 | 79 | td_verror(td, EIO, "write"); |
53cdc686 JA |
80 | |
81 | break; | |
82 | } | |
83 | } | |
84 | ||
85 | if (td->terminate) | |
86 | unlink(f->file_name); | |
87 | else if (td->create_fsync) | |
88 | fsync(f->fd); | |
89 | ||
90 | free(b); | |
91 | close(f->fd); | |
92 | f->fd = -1; | |
93 | return 0; | |
94 | err: | |
95 | close(f->fd); | |
96 | f->fd = -1; | |
97 | return 1; | |
98 | } | |
99 | ||
100 | static int create_files(struct thread_data *td) | |
101 | { | |
102 | struct fio_file *f; | |
af52b345 JA |
103 | int err, need_create, can_extend; |
104 | unsigned int i; | |
53cdc686 | 105 | |
1549441c JA |
106 | for_each_file(td, f, i) { |
107 | if (f->filetype != FIO_TYPE_FILE) | |
108 | continue; | |
109 | ||
110 | f->file_size = td->total_file_size / td->nr_normal_files; | |
111 | f->file_offset = td->start_offset; | |
112 | } | |
f697125a | 113 | |
53cdc686 JA |
114 | /* |
115 | * unless specifically asked for overwrite, let normal io extend it | |
116 | */ | |
0263882a JA |
117 | can_extend = !td->overwrite && !(td->io_ops->flags & FIO_NOEXTEND); |
118 | if (can_extend) | |
53cdc686 | 119 | return 0; |
53cdc686 | 120 | |
25205e97 | 121 | need_create = 0; |
af52b345 JA |
122 | for_each_file(td, f, i) { |
123 | int file_there; | |
124 | ||
125 | if (f->filetype != FIO_TYPE_FILE) | |
126 | continue; | |
eff6861d | 127 | |
af52b345 | 128 | file_there = !file_ok(td, f); |
eff6861d | 129 | |
af52b345 JA |
130 | if (file_there && td_write(td) && !td->overwrite) { |
131 | unlink(f->file_name); | |
132 | file_there = 0; | |
eff6861d | 133 | } |
af52b345 JA |
134 | |
135 | need_create += !file_there; | |
eff6861d | 136 | } |
25205e97 | 137 | |
25205e97 JA |
138 | if (!need_create) |
139 | return 0; | |
140 | ||
f1027063 JA |
141 | if (!td->total_file_size) { |
142 | log_err("Need size for create\n"); | |
e1161c32 | 143 | td_verror(td, EINVAL, "file_size"); |
f1027063 JA |
144 | return 1; |
145 | } | |
146 | ||
53cdc686 | 147 | temp_stall_ts = 1; |
1e97cce9 | 148 | fprintf(f_out, "%s: Laying out IO file(s) (%u x %LuMiB == %LuMiB)\n", |
1549441c JA |
149 | td->name, td->nr_normal_files, |
150 | (td->total_file_size >> 20) / td->nr_normal_files, | |
25205e97 | 151 | td->total_file_size >> 20); |
53cdc686 JA |
152 | |
153 | err = 0; | |
154 | for_each_file(td, f, i) { | |
9b031dc8 JA |
155 | /* |
156 | * Only unlink files that we created. | |
157 | */ | |
f11bd94d | 158 | f->flags &= ~FIO_FILE_UNLINK; |
25205e97 | 159 | if (file_ok(td, f)) { |
f11bd94d JA |
160 | if (td->unlink) |
161 | f->flags |= FIO_FILE_UNLINK; | |
162 | ||
25205e97 JA |
163 | err = create_file(td, f); |
164 | if (err) | |
165 | break; | |
166 | } | |
53cdc686 JA |
167 | } |
168 | ||
169 | temp_stall_ts = 0; | |
170 | return err; | |
171 | } | |
172 | ||
173 | static int file_size(struct thread_data *td, struct fio_file *f) | |
174 | { | |
175 | struct stat st; | |
176 | ||
177 | if (td->overwrite) { | |
178 | if (fstat(f->fd, &st) == -1) { | |
e1161c32 | 179 | td_verror(td, errno, "fstat"); |
53cdc686 JA |
180 | return 1; |
181 | } | |
182 | ||
183 | f->real_file_size = st.st_size; | |
184 | ||
185 | if (!f->file_size || f->file_size > f->real_file_size) | |
186 | f->file_size = f->real_file_size; | |
745508dd JA |
187 | } else |
188 | f->real_file_size = f->file_size; | |
53cdc686 | 189 | |
53cdc686 JA |
190 | return 0; |
191 | } | |
192 | ||
193 | static int bdev_size(struct thread_data *td, struct fio_file *f) | |
194 | { | |
195 | unsigned long long bytes; | |
196 | int r; | |
197 | ||
198 | r = blockdev_size(f->fd, &bytes); | |
199 | if (r) { | |
e1161c32 | 200 | td_verror(td, r, "blockdev_size"); |
53cdc686 JA |
201 | return 1; |
202 | } | |
203 | ||
204 | f->real_file_size = bytes; | |
205 | ||
206 | /* | |
207 | * no extend possibilities, so limit size to device size if too large | |
208 | */ | |
209 | if (!f->file_size || f->file_size > f->real_file_size) | |
210 | f->file_size = f->real_file_size; | |
211 | ||
212 | f->file_size -= f->file_offset; | |
213 | return 0; | |
214 | } | |
215 | ||
216 | static int get_file_size(struct thread_data *td, struct fio_file *f) | |
217 | { | |
218 | int ret = 0; | |
219 | ||
af52b345 | 220 | if (f->filetype == FIO_TYPE_FILE) |
53cdc686 | 221 | ret = file_size(td, f); |
af52b345 | 222 | else if (f->filetype == FIO_TYPE_BD) |
53cdc686 JA |
223 | ret = bdev_size(td, f); |
224 | else | |
225 | f->real_file_size = -1; | |
226 | ||
227 | if (ret) | |
228 | return ret; | |
229 | ||
230 | if (f->file_offset > f->real_file_size) { | |
231 | log_err("%s: offset extends end (%Lu > %Lu)\n", td->name, f->file_offset, f->real_file_size); | |
232 | return 1; | |
233 | } | |
234 | ||
53cdc686 JA |
235 | return 0; |
236 | } | |
237 | ||
e5b401d4 JA |
238 | int file_invalidate_cache(struct thread_data *td, struct fio_file *f) |
239 | { | |
240 | int ret = 0; | |
241 | ||
da86ccb6 | 242 | if (td->odirect) |
b5af8293 JA |
243 | return 0; |
244 | ||
e5b401d4 JA |
245 | /* |
246 | * FIXME: add blockdev flushing too | |
247 | */ | |
b5af8293 | 248 | if (f->mmap) |
e5b401d4 | 249 | ret = madvise(f->mmap, f->file_size, MADV_DONTNEED); |
af52b345 | 250 | else if (f->filetype == FIO_TYPE_FILE) { |
b5af8293 | 251 | ret = fadvise(f->fd, f->file_offset, f->file_size, POSIX_FADV_DONTNEED); |
af52b345 | 252 | } else if (f->filetype == FIO_TYPE_BD) { |
b5af8293 | 253 | ret = blockdev_invalidate_cache(f->fd); |
af52b345 | 254 | } else if (f->filetype == FIO_TYPE_CHAR) |
e5b401d4 JA |
255 | ret = 0; |
256 | ||
257 | if (ret < 0) { | |
e1161c32 | 258 | td_verror(td, errno, "invalidate_cache"); |
e5b401d4 JA |
259 | return 1; |
260 | } | |
261 | ||
ad2da605 | 262 | return ret; |
e5b401d4 JA |
263 | } |
264 | ||
b5af8293 | 265 | void generic_close_file(struct thread_data fio_unused *td, struct fio_file *f) |
53cdc686 | 266 | { |
b5af8293 JA |
267 | close(f->fd); |
268 | f->fd = -1; | |
53cdc686 JA |
269 | } |
270 | ||
b5af8293 | 271 | int generic_open_file(struct thread_data *td, struct fio_file *f) |
53cdc686 | 272 | { |
53cdc686 JA |
273 | int flags = 0; |
274 | ||
2fd233b7 JA |
275 | if (td->odirect) |
276 | flags |= OS_O_DIRECT; | |
277 | if (td->sync_io) | |
278 | flags |= O_SYNC; | |
53cdc686 | 279 | |
2fd233b7 JA |
280 | if (td_write(td) || td_rw(td)) { |
281 | flags |= O_RDWR; | |
53cdc686 | 282 | |
af52b345 | 283 | if (f->filetype == FIO_TYPE_FILE) |
2fd233b7 | 284 | flags |= O_CREAT; |
2fd233b7 | 285 | |
b5af8293 | 286 | f->fd = open(f->file_name, flags, 0600); |
2fd233b7 | 287 | } else { |
af52b345 | 288 | if (f->filetype == FIO_TYPE_CHAR) |
2fd233b7 JA |
289 | flags |= O_RDWR; |
290 | else | |
291 | flags |= O_RDONLY; | |
292 | ||
b5af8293 | 293 | f->fd = open(f->file_name, flags); |
53cdc686 JA |
294 | } |
295 | ||
296 | if (f->fd == -1) { | |
e1161c32 JA |
297 | int __e = errno; |
298 | ||
299 | td_verror(td, __e, "open"); | |
300 | if (__e == EINVAL && td->odirect) | |
9d80e114 | 301 | log_err("fio: destination does not support O_DIRECT\n"); |
8ab53873 JA |
302 | if (__e == EMFILE) |
303 | log_err("fio: try reducing/setting openfiles (failed at %u of %u)\n", td->nr_open_files, td->nr_files); | |
53cdc686 JA |
304 | return 1; |
305 | } | |
306 | ||
b5af8293 JA |
307 | if (get_file_size(td, f)) |
308 | goto err; | |
309 | ||
0263882a | 310 | if (td->invalidate_cache && file_invalidate_cache(td, f)) |
b5af8293 JA |
311 | goto err; |
312 | ||
313 | if (!td_random(td)) { | |
314 | if (fadvise(f->fd, f->file_offset, f->file_size, POSIX_FADV_SEQUENTIAL) < 0) { | |
315 | td_verror(td, errno, "fadvise"); | |
316 | goto err; | |
317 | } | |
318 | } else { | |
319 | if (fadvise(f->fd, f->file_offset, f->file_size, POSIX_FADV_RANDOM) < 0) { | |
320 | td_verror(td, errno, "fadvise"); | |
321 | goto err; | |
322 | } | |
bdb4e2e9 | 323 | } |
53cdc686 JA |
324 | |
325 | return 0; | |
b5af8293 JA |
326 | err: |
327 | close(f->fd); | |
328 | return 1; | |
329 | } | |
330 | ||
21972cde JA |
331 | int open_files(struct thread_data *td) |
332 | { | |
333 | struct fio_file *f; | |
af52b345 JA |
334 | unsigned int i; |
335 | int err = 0; | |
21972cde JA |
336 | |
337 | for_each_file(td, f, i) { | |
b5af8293 | 338 | err = td_io_open_file(td, f); |
21972cde JA |
339 | if (err) |
340 | break; | |
b5af8293 JA |
341 | |
342 | if (td->open_files == td->nr_open_files) | |
343 | break; | |
21972cde JA |
344 | } |
345 | ||
7abf833d JA |
346 | if (!err) |
347 | return 0; | |
348 | ||
bdb4e2e9 | 349 | for_each_file(td, f, i) |
b5af8293 | 350 | td_io_close_file(td, f); |
7abf833d | 351 | |
21972cde JA |
352 | return err; |
353 | } | |
354 | ||
53cdc686 JA |
355 | int setup_files(struct thread_data *td) |
356 | { | |
357 | struct fio_file *f; | |
af52b345 JA |
358 | unsigned int i; |
359 | int err; | |
53cdc686 JA |
360 | |
361 | /* | |
362 | * if ioengine defines a setup() method, it's responsible for | |
363 | * setting up everything in the td->files[] area. | |
364 | */ | |
365 | if (td->io_ops->setup) | |
366 | return td->io_ops->setup(td); | |
367 | ||
368 | if (create_files(td)) | |
369 | return 1; | |
370 | ||
21972cde | 371 | err = open_files(td); |
f1027063 JA |
372 | if (err) |
373 | return err; | |
374 | ||
0a7eb121 JA |
375 | /* |
376 | * Recalculate the total file size now that files are set up. | |
377 | */ | |
378 | td->total_file_size = 0; | |
379 | for_each_file(td, f, i) | |
380 | td->total_file_size += f->file_size; | |
381 | ||
f1027063 | 382 | td->io_size = td->total_file_size; |
53cdc686 JA |
383 | if (td->io_size == 0) { |
384 | log_err("%s: no io blocks\n", td->name); | |
e1161c32 | 385 | td_verror(td, EINVAL, "total_file_size"); |
53cdc686 JA |
386 | return 1; |
387 | } | |
388 | ||
389 | if (!td->zone_size) | |
390 | td->zone_size = td->io_size; | |
391 | ||
392 | td->total_io_size = td->io_size * td->loops; | |
393 | ||
bdb4e2e9 | 394 | for_each_file(td, f, i) |
b5af8293 | 395 | td_io_close_file(td, f); |
21972cde JA |
396 | |
397 | return err; | |
53cdc686 JA |
398 | } |
399 | ||
400 | void close_files(struct thread_data *td) | |
401 | { | |
0ab8db89 | 402 | struct fio_file *f; |
af52b345 | 403 | unsigned int i; |
53cdc686 | 404 | |
0ab8db89 | 405 | for_each_file(td, f, i) { |
1315a68a | 406 | if (!f->file_name && (f->flags & FIO_FILE_UNLINK) && |
af52b345 | 407 | f->filetype == FIO_TYPE_FILE) { |
132ad46d | 408 | unlink(f->file_name); |
1315a68a | 409 | free(f->file_name); |
132ad46d JA |
410 | f->file_name = NULL; |
411 | } | |
bdb4e2e9 | 412 | |
b5af8293 | 413 | td_io_close_file(td, f); |
b3dc7f07 JA |
414 | |
415 | if (f->file_map) | |
416 | free(f->file_map); | |
53cdc686 | 417 | } |
b4a6a59a | 418 | |
132ad46d | 419 | td->filename = NULL; |
b4a6a59a JA |
420 | free(td->files); |
421 | td->files = NULL; | |
422 | td->nr_files = 0; | |
53cdc686 | 423 | } |
af52b345 | 424 | |
e3bab463 | 425 | static void get_file_type(struct fio_file *f) |
af52b345 JA |
426 | { |
427 | struct stat sb; | |
428 | ||
429 | f->filetype = FIO_TYPE_FILE; | |
430 | ||
e3bab463 | 431 | if (!lstat(f->file_name, &sb)) { |
af52b345 JA |
432 | if (S_ISBLK(sb.st_mode)) |
433 | f->filetype = FIO_TYPE_BD; | |
434 | else if (S_ISCHR(sb.st_mode)) | |
435 | f->filetype = FIO_TYPE_CHAR; | |
436 | } | |
437 | } | |
438 | ||
439 | void add_file(struct thread_data *td, const char *fname) | |
440 | { | |
7b4e4fe5 | 441 | int cur_files = td->files_index; |
af52b345 JA |
442 | struct fio_file *f; |
443 | ||
444 | td->files = realloc(td->files, (cur_files + 1) * sizeof(*f)); | |
445 | ||
446 | f = &td->files[cur_files]; | |
447 | memset(f, 0, sizeof(*f)); | |
448 | f->fd = -1; | |
cae61953 | 449 | f->file_name = strdup(fname); |
af52b345 | 450 | |
e3bab463 | 451 | get_file_type(f); |
af52b345 | 452 | |
7b4e4fe5 | 453 | td->files_index++; |
1549441c JA |
454 | if (f->filetype == FIO_TYPE_FILE) |
455 | td->nr_normal_files++; | |
af52b345 | 456 | } |
0ad920e7 JA |
457 | |
458 | void get_file(struct fio_file *f) | |
459 | { | |
460 | f->references++; | |
461 | } | |
462 | ||
463 | void put_file(struct thread_data *td, struct fio_file *f) | |
464 | { | |
465 | if (!(f->flags & FIO_FILE_OPEN)) | |
466 | return; | |
467 | ||
468 | assert(f->references); | |
469 | if (--f->references) | |
470 | return; | |
471 | ||
ebb1415f JA |
472 | if (should_fsync(td) && td->fsync_on_close) |
473 | fsync(f->fd); | |
474 | ||
0ad920e7 JA |
475 | if (td->io_ops->close_file) |
476 | td->io_ops->close_file(td, f); | |
477 | td->nr_open_files--; | |
478 | f->flags &= ~FIO_FILE_OPEN; | |
479 | } | |
bbf6b540 JA |
480 | |
481 | static int recurse_dir(struct thread_data *td, const char *dirname) | |
482 | { | |
483 | struct dirent *dir; | |
484 | int ret = 0; | |
485 | DIR *D; | |
486 | ||
487 | D = opendir(dirname); | |
488 | if (!D) { | |
489 | td_verror(td, errno, "opendir"); | |
490 | return 1; | |
491 | } | |
492 | ||
493 | while ((dir = readdir(D)) != NULL) { | |
494 | char full_path[PATH_MAX]; | |
495 | struct stat sb; | |
496 | ||
497 | sprintf(full_path, "%s/%s", dirname, dir->d_name); | |
498 | ||
499 | if (lstat(full_path, &sb) == -1) { | |
500 | if (errno != ENOENT) { | |
501 | td_verror(td, errno, "stat"); | |
502 | return 1; | |
503 | } | |
504 | } | |
505 | ||
506 | if (S_ISREG(sb.st_mode)) { | |
507 | add_file(td, full_path); | |
508 | td->nr_files++; | |
509 | continue; | |
510 | } | |
511 | ||
512 | if (!strcmp(dir->d_name, ".") || !strcmp(dir->d_name, "..")) | |
513 | continue; | |
514 | ||
515 | if ((ret = recurse_dir(td, full_path)) != 0) | |
516 | break; | |
517 | } | |
518 | ||
519 | closedir(D); | |
520 | return ret; | |
521 | } | |
522 | ||
523 | int add_dir_files(struct thread_data *td, const char *path) | |
524 | { | |
525 | return recurse_dir(td, path); | |
526 | } |