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" | |
f17c4392 | 11 | #include "smalloc.h" |
4906e0b5 | 12 | #include "filehash.h" |
53cdc686 | 13 | |
7172cfe8 JA |
14 | static int root_warn; |
15 | ||
c592b9fe JA |
16 | static inline void clear_error(struct thread_data *td) |
17 | { | |
18 | td->error = 0; | |
19 | td->verror[0] = '\0'; | |
20 | } | |
21 | ||
3baddf24 JA |
22 | /* |
23 | * Leaves f->fd open on success, caller must close | |
24 | */ | |
7bb48f84 | 25 | static int extend_file(struct thread_data *td, struct fio_file *f) |
25205e97 | 26 | { |
ea443657 | 27 | int r, new_layout = 0, unlink_file = 0, flags; |
25205e97 JA |
28 | unsigned long long left; |
29 | unsigned int bs; | |
30 | char *b; | |
b2a15192 | 31 | |
4241ea8f JA |
32 | if (read_only) { |
33 | log_err("fio: refusing extend of file due to read-only\n"); | |
34 | return 0; | |
35 | } | |
36 | ||
507a702f JA |
37 | /* |
38 | * check if we need to lay the file out complete again. fio | |
39 | * does that for operations involving reads, or for writes | |
40 | * where overwrite is set | |
41 | */ | |
ffdfabd4 JA |
42 | if (td_read(td) || (td_write(td) && td->o.overwrite) || |
43 | (td_write(td) && td->io_ops->flags & FIO_NOEXTEND)) | |
507a702f | 44 | new_layout = 1; |
ea443657 JA |
45 | if (td_write(td) && !td->o.overwrite) |
46 | unlink_file = 1; | |
507a702f | 47 | |
6ae1f57f | 48 | if (unlink_file || new_layout) { |
bd199f2b | 49 | dprint(FD_FILE, "layout unlink %s\n", f->file_name); |
982016d6 | 50 | if ((unlink(f->file_name) < 0) && (errno != ENOENT)) { |
7bb48f84 JA |
51 | td_verror(td, errno, "unlink"); |
52 | return 1; | |
53 | } | |
54 | } | |
55 | ||
507a702f JA |
56 | flags = O_WRONLY | O_CREAT; |
57 | if (new_layout) | |
58 | flags |= O_TRUNC; | |
59 | ||
ee56ad50 | 60 | dprint(FD_FILE, "open file %s, flags %x\n", f->file_name, flags); |
507a702f | 61 | f->fd = open(f->file_name, flags, 0644); |
53cdc686 | 62 | if (f->fd < 0) { |
e1161c32 | 63 | td_verror(td, errno, "open"); |
53cdc686 JA |
64 | return 1; |
65 | } | |
66 | ||
fc74ac1d SL |
67 | if (!new_layout) |
68 | goto done; | |
69 | ||
5e0074c2 JA |
70 | /* |
71 | * The size will be -1ULL when fill_device is used, so don't truncate | |
72 | * or fallocate this file, just write it | |
73 | */ | |
74 | if (!td->o.fill_device) { | |
75 | dprint(FD_FILE, "truncate file %s, size %llu\n", f->file_name, | |
ee56ad50 | 76 | f->real_file_size); |
5e0074c2 JA |
77 | if (ftruncate(f->fd, f->real_file_size) == -1) { |
78 | td_verror(td, errno, "ftruncate"); | |
79 | goto err; | |
80 | } | |
53cdc686 | 81 | |
fffca02d | 82 | #ifdef FIO_HAVE_FALLOCATE |
5e0074c2 | 83 | dprint(FD_FILE, "fallocate file %s, size %llu\n", f->file_name, |
ee56ad50 | 84 | f->real_file_size); |
5e0074c2 JA |
85 | r = posix_fallocate(f->fd, 0, f->real_file_size); |
86 | if (r < 0) { | |
87 | log_err("fio: posix_fallocate fails: %s\n", | |
88 | strerror(-r)); | |
89 | } | |
fffca02d | 90 | #endif |
5e0074c2 | 91 | } |
40f8298c | 92 | |
2dc1bbeb JA |
93 | b = malloc(td->o.max_bs[DDIR_WRITE]); |
94 | memset(b, 0, td->o.max_bs[DDIR_WRITE]); | |
53cdc686 | 95 | |
7bb48f84 | 96 | left = f->real_file_size; |
53cdc686 | 97 | while (left && !td->terminate) { |
2dc1bbeb | 98 | bs = td->o.max_bs[DDIR_WRITE]; |
53cdc686 JA |
99 | if (bs > left) |
100 | bs = left; | |
101 | ||
102 | r = write(f->fd, b, bs); | |
103 | ||
5e0074c2 JA |
104 | if (r > 0) { |
105 | left -= r; | |
53cdc686 JA |
106 | continue; |
107 | } else { | |
5e0074c2 JA |
108 | if (r < 0) { |
109 | int __e = errno; | |
110 | ||
111 | if (__e == ENOSPC) { | |
112 | if (td->o.fill_device) | |
113 | break; | |
114 | log_info("fio: ENOSPC on laying out " | |
115 | "file, stopping\n"); | |
116 | break; | |
117 | } | |
e1161c32 | 118 | td_verror(td, errno, "write"); |
5e0074c2 | 119 | } else |
e1161c32 | 120 | td_verror(td, EIO, "write"); |
53cdc686 JA |
121 | |
122 | break; | |
123 | } | |
124 | } | |
125 | ||
ffdfabd4 JA |
126 | if (td->terminate) { |
127 | dprint(FD_FILE, "terminate unlink %s\n", f->file_name); | |
53cdc686 | 128 | unlink(f->file_name); |
ffdfabd4 | 129 | } else if (td->o.create_fsync) { |
98e1ac4e JA |
130 | if (fsync(f->fd) < 0) { |
131 | td_verror(td, errno, "fsync"); | |
132 | goto err; | |
133 | } | |
134 | } | |
0d1cd207 | 135 | if (td->o.fill_device && !td_write(td)) { |
d6aed795 | 136 | fio_file_clear_size_known(f); |
5e0074c2 JA |
137 | if (td_io_get_file_size(td, f)) |
138 | goto err; | |
139 | if (f->io_size > f->real_file_size) | |
140 | f->io_size = f->real_file_size; | |
141 | } | |
53cdc686 JA |
142 | |
143 | free(b); | |
507a702f | 144 | done: |
53cdc686 JA |
145 | return 0; |
146 | err: | |
147 | close(f->fd); | |
148 | f->fd = -1; | |
149 | return 1; | |
150 | } | |
151 | ||
afad68f7 ZY |
152 | static int pre_read_file(struct thread_data *td, struct fio_file *f) |
153 | { | |
b0f65863 | 154 | int r, did_open = 0, old_runstate; |
afad68f7 ZY |
155 | unsigned long long left; |
156 | unsigned int bs; | |
157 | char *b; | |
158 | ||
d6aed795 | 159 | if (!fio_file_open(f)) { |
b0f65863 JA |
160 | if (td->io_ops->open_file(td, f)) { |
161 | log_err("fio: cannot pre-read, failed to open file\n"); | |
162 | return 1; | |
163 | } | |
164 | did_open = 1; | |
165 | } | |
166 | ||
167 | old_runstate = td->runstate; | |
168 | td_set_runstate(td, TD_PRE_READING); | |
169 | ||
afad68f7 ZY |
170 | bs = td->o.max_bs[DDIR_READ]; |
171 | b = malloc(bs); | |
172 | memset(b, 0, bs); | |
173 | ||
174 | lseek(f->fd, f->file_offset, SEEK_SET); | |
175 | left = f->io_size; | |
176 | ||
177 | while (left && !td->terminate) { | |
178 | if (bs > left) | |
179 | bs = left; | |
180 | ||
181 | r = read(f->fd, b, bs); | |
182 | ||
183 | if (r == (int) bs) { | |
184 | left -= bs; | |
185 | continue; | |
186 | } else { | |
187 | td_verror(td, EIO, "pre_read"); | |
188 | break; | |
189 | } | |
190 | } | |
191 | ||
b0f65863 JA |
192 | td_set_runstate(td, old_runstate); |
193 | ||
194 | if (did_open) | |
195 | td->io_ops->close_file(td, f); | |
afad68f7 ZY |
196 | free(b); |
197 | return 0; | |
198 | } | |
199 | ||
7bb48f84 | 200 | static unsigned long long get_rand_file_size(struct thread_data *td) |
9c60ce64 | 201 | { |
dc873b6f | 202 | unsigned long long ret, sized; |
9c60ce64 JA |
203 | long r; |
204 | ||
9c60ce64 | 205 | r = os_random_long(&td->file_size_state); |
dc873b6f JA |
206 | sized = td->o.file_size_high - td->o.file_size_low; |
207 | ret = (unsigned long long) ((double) sized * (r / (OS_RAND_MAX + 1.0))); | |
5ec10eaa | 208 | ret += td->o.file_size_low; |
2dc1bbeb | 209 | ret -= (ret % td->o.rw_min_bs); |
9c60ce64 JA |
210 | return ret; |
211 | } | |
212 | ||
53cdc686 JA |
213 | static int file_size(struct thread_data *td, struct fio_file *f) |
214 | { | |
215 | struct stat st; | |
216 | ||
df9c26b1 | 217 | if (stat(f->file_name, &st) == -1) { |
7bb48f84 JA |
218 | td_verror(td, errno, "fstat"); |
219 | return 1; | |
220 | } | |
53cdc686 | 221 | |
7bb48f84 | 222 | f->real_file_size = st.st_size; |
53cdc686 JA |
223 | return 0; |
224 | } | |
225 | ||
226 | static int bdev_size(struct thread_data *td, struct fio_file *f) | |
227 | { | |
228 | unsigned long long bytes; | |
229 | int r; | |
230 | ||
df9c26b1 JA |
231 | if (td->io_ops->open_file(td, f)) { |
232 | log_err("fio: failed opening blockdev %s for size check\n", | |
233 | f->file_name); | |
234 | return 1; | |
235 | } | |
236 | ||
53cdc686 JA |
237 | r = blockdev_size(f->fd, &bytes); |
238 | if (r) { | |
e1161c32 | 239 | td_verror(td, r, "blockdev_size"); |
df9c26b1 | 240 | goto err; |
53cdc686 JA |
241 | } |
242 | ||
7ab077ab JA |
243 | if (!bytes) { |
244 | log_err("%s: zero sized block device?\n", f->file_name); | |
df9c26b1 | 245 | goto err; |
7ab077ab JA |
246 | } |
247 | ||
53cdc686 | 248 | f->real_file_size = bytes; |
22a57ba8 | 249 | td->io_ops->close_file(td, f); |
53cdc686 | 250 | return 0; |
df9c26b1 JA |
251 | err: |
252 | td->io_ops->close_file(td, f); | |
253 | return 1; | |
53cdc686 JA |
254 | } |
255 | ||
256 | static int get_file_size(struct thread_data *td, struct fio_file *f) | |
257 | { | |
258 | int ret = 0; | |
259 | ||
d6aed795 | 260 | if (fio_file_size_known(f)) |
409b3417 JA |
261 | return 0; |
262 | ||
7bb48f84 JA |
263 | if (f->filetype == FIO_TYPE_FILE) |
264 | ret = file_size(td, f); | |
265 | else if (f->filetype == FIO_TYPE_BD) | |
53cdc686 JA |
266 | ret = bdev_size(td, f); |
267 | else | |
268 | f->real_file_size = -1; | |
269 | ||
270 | if (ret) | |
271 | return ret; | |
272 | ||
273 | if (f->file_offset > f->real_file_size) { | |
5ec10eaa JA |
274 | log_err("%s: offset extends end (%Lu > %Lu)\n", td->o.name, |
275 | f->file_offset, f->real_file_size); | |
53cdc686 JA |
276 | return 1; |
277 | } | |
278 | ||
d6aed795 | 279 | fio_file_set_size_known(f); |
53cdc686 JA |
280 | return 0; |
281 | } | |
282 | ||
3baddf24 JA |
283 | static int __file_invalidate_cache(struct thread_data *td, struct fio_file *f, |
284 | unsigned long long off, | |
285 | unsigned long long len) | |
e5b401d4 JA |
286 | { |
287 | int ret = 0; | |
288 | ||
5e0074c2 | 289 | if (len == -1ULL) |
3baddf24 JA |
290 | len = f->io_size; |
291 | if (off == -1ULL) | |
292 | off = f->file_offset; | |
ee56ad50 | 293 | |
0d1cd207 JA |
294 | if (len == -1ULL || off == -1ULL) |
295 | return 0; | |
296 | ||
3baddf24 JA |
297 | dprint(FD_IO, "invalidate cache %s: %llu/%llu\n", f->file_name, off, |
298 | len); | |
b5af8293 | 299 | |
e5b401d4 JA |
300 | /* |
301 | * FIXME: add blockdev flushing too | |
302 | */ | |
ac893112 JA |
303 | if (f->mmap_ptr) |
304 | ret = madvise(f->mmap_ptr, f->mmap_sz, MADV_DONTNEED); | |
5ec10eaa | 305 | else if (f->filetype == FIO_TYPE_FILE) { |
3baddf24 | 306 | ret = fadvise(f->fd, off, len, POSIX_FADV_DONTNEED); |
5ec10eaa | 307 | } else if (f->filetype == FIO_TYPE_BD) { |
b5af8293 | 308 | ret = blockdev_invalidate_cache(f->fd); |
7e0e25c9 | 309 | if (ret < 0 && errno == EACCES && geteuid()) { |
7172cfe8 | 310 | if (!root_warn) { |
5ec10eaa JA |
311 | log_err("fio: only root may flush block " |
312 | "devices. Cache flush bypassed!\n"); | |
7172cfe8 JA |
313 | root_warn = 1; |
314 | } | |
7e0e25c9 JA |
315 | ret = 0; |
316 | } | |
b5605e9d | 317 | } else if (f->filetype == FIO_TYPE_CHAR || f->filetype == FIO_TYPE_PIPE) |
e5b401d4 JA |
318 | ret = 0; |
319 | ||
320 | if (ret < 0) { | |
e1161c32 | 321 | td_verror(td, errno, "invalidate_cache"); |
e5b401d4 | 322 | return 1; |
3baddf24 JA |
323 | } else if (ret > 0) { |
324 | td_verror(td, ret, "invalidate_cache"); | |
325 | return 1; | |
e5b401d4 JA |
326 | } |
327 | ||
ad2da605 | 328 | return ret; |
3baddf24 JA |
329 | |
330 | } | |
331 | ||
332 | int file_invalidate_cache(struct thread_data *td, struct fio_file *f) | |
333 | { | |
d6aed795 | 334 | if (!fio_file_open(f)) |
a5fb461f JA |
335 | return 0; |
336 | ||
5e0074c2 | 337 | return __file_invalidate_cache(td, f, -1ULL, -1ULL); |
e5b401d4 JA |
338 | } |
339 | ||
6977bcd0 | 340 | int generic_close_file(struct thread_data fio_unused *td, struct fio_file *f) |
53cdc686 | 341 | { |
6977bcd0 JA |
342 | int ret = 0; |
343 | ||
ee56ad50 | 344 | dprint(FD_FILE, "fd close %s\n", f->file_name); |
4906e0b5 JA |
345 | |
346 | remove_file_hash(f); | |
347 | ||
6977bcd0 JA |
348 | if (close(f->fd) < 0) |
349 | ret = errno; | |
350 | ||
b5af8293 | 351 | f->fd = -1; |
6977bcd0 | 352 | return ret; |
53cdc686 JA |
353 | } |
354 | ||
4d4e80f2 | 355 | static int file_lookup_open(struct fio_file *f, int flags) |
53cdc686 | 356 | { |
29c1349f | 357 | struct fio_file *__f; |
4d4e80f2 JA |
358 | int from_hash; |
359 | ||
360 | __f = lookup_file_hash(f->file_name); | |
361 | if (__f) { | |
9efef3c4 | 362 | dprint(FD_FILE, "found file in hash %s\n", f->file_name); |
4d4e80f2 JA |
363 | /* |
364 | * racy, need the __f->lock locked | |
365 | */ | |
366 | f->lock = __f->lock; | |
367 | f->lock_owner = __f->lock_owner; | |
368 | f->lock_batch = __f->lock_batch; | |
369 | f->lock_ddir = __f->lock_ddir; | |
4d4e80f2 JA |
370 | from_hash = 1; |
371 | } else { | |
9efef3c4 | 372 | dprint(FD_FILE, "file not found in hash %s\n", f->file_name); |
4d4e80f2 JA |
373 | from_hash = 0; |
374 | } | |
375 | ||
e8670ef8 | 376 | f->fd = open(f->file_name, flags, 0600); |
4d4e80f2 JA |
377 | return from_hash; |
378 | } | |
379 | ||
380 | int generic_open_file(struct thread_data *td, struct fio_file *f) | |
381 | { | |
66159828 | 382 | int is_std = 0; |
53cdc686 | 383 | int flags = 0; |
29c1349f | 384 | int from_hash = 0; |
53cdc686 | 385 | |
ee56ad50 JA |
386 | dprint(FD_FILE, "fd open %s\n", f->file_name); |
387 | ||
66159828 JA |
388 | if (!strcmp(f->file_name, "-")) { |
389 | if (td_rw(td)) { | |
390 | log_err("fio: can't read/write to stdin/out\n"); | |
391 | return 1; | |
392 | } | |
393 | is_std = 1; | |
ce98fa66 JA |
394 | |
395 | /* | |
396 | * move output logging to stderr, if we are writing to stdout | |
397 | */ | |
398 | if (td_write(td)) | |
399 | f_out = stderr; | |
66159828 JA |
400 | } |
401 | ||
2dc1bbeb | 402 | if (td->o.odirect) |
2fd233b7 | 403 | flags |= OS_O_DIRECT; |
2dc1bbeb | 404 | if (td->o.sync_io) |
2fd233b7 | 405 | flags |= O_SYNC; |
ad92396c | 406 | if (f->filetype != FIO_TYPE_FILE) |
5921e80c | 407 | flags |= FIO_O_NOATIME; |
814452bd JA |
408 | if (td->o.create_on_open) |
409 | flags |= O_CREAT; | |
53cdc686 | 410 | |
056f3459 | 411 | open_again: |
660a1cb5 | 412 | if (td_write(td)) { |
17308158 JA |
413 | if (!read_only) |
414 | flags |= O_RDWR; | |
53cdc686 | 415 | |
af52b345 | 416 | if (f->filetype == FIO_TYPE_FILE) |
2fd233b7 | 417 | flags |= O_CREAT; |
2fd233b7 | 418 | |
66159828 JA |
419 | if (is_std) |
420 | f->fd = dup(STDOUT_FILENO); | |
4d4e80f2 JA |
421 | else |
422 | from_hash = file_lookup_open(f, flags); | |
2fd233b7 | 423 | } else { |
4241ea8f | 424 | if (f->filetype == FIO_TYPE_CHAR && !read_only) |
2fd233b7 JA |
425 | flags |= O_RDWR; |
426 | else | |
427 | flags |= O_RDONLY; | |
428 | ||
66159828 JA |
429 | if (is_std) |
430 | f->fd = dup(STDIN_FILENO); | |
4d4e80f2 JA |
431 | else |
432 | from_hash = file_lookup_open(f, flags); | |
53cdc686 JA |
433 | } |
434 | ||
435 | if (f->fd == -1) { | |
e4e33258 | 436 | char buf[FIO_VERROR_SIZE]; |
e1161c32 JA |
437 | int __e = errno; |
438 | ||
835d9b9e | 439 | if (__e == EPERM && (flags & FIO_O_NOATIME)) { |
5921e80c | 440 | flags &= ~FIO_O_NOATIME; |
056f3459 AC |
441 | goto open_again; |
442 | } | |
443 | ||
e8670ef8 | 444 | snprintf(buf, sizeof(buf) - 1, "open(%s)", f->file_name); |
e4e33258 JA |
445 | |
446 | td_verror(td, __e, buf); | |
53cdc686 JA |
447 | } |
448 | ||
29c1349f JA |
449 | if (!from_hash && f->fd != -1) { |
450 | if (add_file_hash(f)) { | |
451 | int ret; | |
452 | ||
453 | /* | |
454 | * OK to ignore, we haven't done anything with it | |
455 | */ | |
456 | ret = generic_close_file(td, f); | |
457 | goto open_again; | |
458 | } | |
459 | } | |
4906e0b5 | 460 | |
53cdc686 | 461 | return 0; |
b5af8293 JA |
462 | } |
463 | ||
df9c26b1 | 464 | int generic_get_file_size(struct thread_data *td, struct fio_file *f) |
21972cde | 465 | { |
df9c26b1 | 466 | return get_file_size(td, f); |
21972cde JA |
467 | } |
468 | ||
7bb48f84 JA |
469 | /* |
470 | * open/close all files, so that ->real_file_size gets set | |
471 | */ | |
bab3fd58 | 472 | static int get_file_sizes(struct thread_data *td) |
7bb48f84 JA |
473 | { |
474 | struct fio_file *f; | |
475 | unsigned int i; | |
bab3fd58 | 476 | int err = 0; |
7bb48f84 JA |
477 | |
478 | for_each_file(td, f, i) { | |
5ec10eaa JA |
479 | dprint(FD_FILE, "get file size for %p/%d/%p\n", f, i, |
480 | f->file_name); | |
9efef3c4 | 481 | |
99a47c69 | 482 | if (td_io_get_file_size(td, f)) { |
40b44f4a JA |
483 | if (td->error != ENOENT) { |
484 | log_err("%s\n", td->verror); | |
485 | err = 1; | |
486 | } | |
541d66d7 | 487 | clear_error(td); |
07eb79df | 488 | } |
409b3417 JA |
489 | |
490 | if (f->real_file_size == -1ULL && td->o.size) | |
491 | f->real_file_size = td->o.size / td->o.nr_files; | |
7bb48f84 | 492 | } |
bab3fd58 JA |
493 | |
494 | return err; | |
7bb48f84 JA |
495 | } |
496 | ||
497 | /* | |
498 | * Open the files and setup files sizes, creating files if necessary. | |
499 | */ | |
53cdc686 JA |
500 | int setup_files(struct thread_data *td) |
501 | { | |
7bb48f84 | 502 | unsigned long long total_size, extend_size; |
53cdc686 | 503 | struct fio_file *f; |
af52b345 | 504 | unsigned int i; |
000b0803 | 505 | int err = 0, need_extend; |
53cdc686 | 506 | |
ee56ad50 JA |
507 | dprint(FD_FILE, "setup files\n"); |
508 | ||
691c8fb0 JA |
509 | if (td->o.read_iolog_file) |
510 | return 0; | |
511 | ||
53cdc686 JA |
512 | /* |
513 | * if ioengine defines a setup() method, it's responsible for | |
7bb48f84 JA |
514 | * opening the files and setting f->real_file_size to indicate |
515 | * the valid range for that file. | |
53cdc686 JA |
516 | */ |
517 | if (td->io_ops->setup) | |
7bb48f84 JA |
518 | err = td->io_ops->setup(td); |
519 | else | |
bab3fd58 | 520 | err = get_file_sizes(td); |
53cdc686 | 521 | |
f1027063 JA |
522 | if (err) |
523 | return err; | |
524 | ||
0a7eb121 | 525 | /* |
7bb48f84 JA |
526 | * check sizes. if the files/devices do not exist and the size |
527 | * isn't passed to fio, abort. | |
0a7eb121 | 528 | */ |
7bb48f84 JA |
529 | total_size = 0; |
530 | for_each_file(td, f, i) { | |
531 | if (f->real_file_size == -1ULL) | |
532 | total_size = -1ULL; | |
533 | else | |
534 | total_size += f->real_file_size; | |
535 | } | |
0a7eb121 | 536 | |
7bb48f84 JA |
537 | /* |
538 | * device/file sizes are zero and no size given, punt | |
539 | */ | |
1f809d15 | 540 | if ((!total_size || total_size == -1ULL) && !td->o.size && |
aa31f1f1 | 541 | !(td->io_ops->flags & FIO_NOIO) && !td->o.fill_device) { |
7bb48f84 | 542 | log_err("%s: you need to specify size=\n", td->o.name); |
e1161c32 | 543 | td_verror(td, EINVAL, "total_file_size"); |
53cdc686 JA |
544 | return 1; |
545 | } | |
546 | ||
7bb48f84 JA |
547 | /* |
548 | * now file sizes are known, so we can set ->io_size. if size= is | |
549 | * not given, ->io_size is just equal to ->real_file_size. if size | |
550 | * is given, ->io_size is size / nr_files. | |
551 | */ | |
552 | extend_size = total_size = 0; | |
553 | need_extend = 0; | |
554 | for_each_file(td, f, i) { | |
bcdedd0a YHJT |
555 | f->file_offset = td->o.start_offset; |
556 | ||
7bb48f84 JA |
557 | if (!td->o.file_size_low) { |
558 | /* | |
559 | * no file size range given, file size is equal to | |
560 | * total size divided by number of files. if that is | |
561 | * zero, set it to the real file size. | |
562 | */ | |
563 | f->io_size = td->o.size / td->o.nr_files; | |
65bdb10a | 564 | if (!f->io_size) |
273f8c91 | 565 | f->io_size = f->real_file_size - f->file_offset; |
7bb48f84 JA |
566 | } else if (f->real_file_size < td->o.file_size_low || |
567 | f->real_file_size > td->o.file_size_high) { | |
5ec10eaa | 568 | if (f->file_offset > td->o.file_size_low) |
bcdedd0a | 569 | goto err_offset; |
7bb48f84 JA |
570 | /* |
571 | * file size given. if it's fixed, use that. if it's a | |
572 | * range, generate a random size in-between. | |
573 | */ | |
5ec10eaa JA |
574 | if (td->o.file_size_low == td->o.file_size_high) { |
575 | f->io_size = td->o.file_size_low | |
576 | - f->file_offset; | |
577 | } else { | |
578 | f->io_size = get_rand_file_size(td) | |
579 | - f->file_offset; | |
580 | } | |
65bdb10a | 581 | } else |
bcdedd0a | 582 | f->io_size = f->real_file_size - f->file_offset; |
53cdc686 | 583 | |
7bb48f84 JA |
584 | if (f->io_size == -1ULL) |
585 | total_size = -1ULL; | |
586 | else | |
587 | total_size += f->io_size; | |
588 | ||
589 | if (f->filetype == FIO_TYPE_FILE && | |
bcdedd0a | 590 | (f->io_size + f->file_offset) > f->real_file_size && |
7bb48f84 | 591 | !(td->io_ops->flags & FIO_DISKLESSIO)) { |
814452bd JA |
592 | if (!td->o.create_on_open) { |
593 | need_extend++; | |
594 | extend_size += (f->io_size + f->file_offset); | |
595 | } else | |
596 | f->real_file_size = f->io_size + f->file_offset; | |
d6aed795 | 597 | fio_file_set_extend(f); |
5ec10eaa | 598 | } |
7bb48f84 | 599 | } |
53cdc686 | 600 | |
2298290e | 601 | if (!td->o.size || td->o.size > total_size) |
7bb48f84 | 602 | td->o.size = total_size; |
21972cde | 603 | |
7bb48f84 JA |
604 | /* |
605 | * See if we need to extend some files | |
606 | */ | |
607 | if (need_extend) { | |
608 | temp_stall_ts = 1; | |
a7ba8c5f SSY |
609 | if (!terse_output) |
610 | log_info("%s: Laying out IO file(s) (%u file(s) /" | |
611 | " %LuMiB)\n", td->o.name, need_extend, | |
612 | extend_size >> 20); | |
7bb48f84 JA |
613 | |
614 | for_each_file(td, f, i) { | |
5e0074c2 | 615 | unsigned long long old_len = -1ULL, extend_len = -1ULL; |
3baddf24 | 616 | |
d6aed795 | 617 | if (!fio_file_extend(f)) |
7bb48f84 JA |
618 | continue; |
619 | ||
409b3417 | 620 | assert(f->filetype == FIO_TYPE_FILE); |
d6aed795 | 621 | fio_file_clear_extend(f); |
5e0074c2 JA |
622 | if (!td->o.fill_device) { |
623 | old_len = f->real_file_size; | |
624 | extend_len = f->io_size + f->file_offset - old_len; | |
625 | } | |
bcdedd0a | 626 | f->real_file_size = (f->io_size + f->file_offset); |
7bb48f84 JA |
627 | err = extend_file(td, f); |
628 | if (err) | |
3baddf24 | 629 | break; |
5e0074c2 | 630 | |
3baddf24 JA |
631 | err = __file_invalidate_cache(td, f, old_len, |
632 | extend_len); | |
633 | close(f->fd); | |
634 | f->fd = -1; | |
635 | if (err) | |
7bb48f84 JA |
636 | break; |
637 | } | |
638 | temp_stall_ts = 0; | |
639 | } | |
640 | ||
641 | if (err) | |
642 | return err; | |
643 | ||
644 | if (!td->o.zone_size) | |
645 | td->o.zone_size = td->o.size; | |
646 | ||
ea966f81 JA |
647 | /* |
648 | * iolog already set the total io size, if we read back | |
649 | * stored entries. | |
650 | */ | |
651 | if (!td->o.read_iolog_file) | |
652 | td->total_io_size = td->o.size * td->o.loops; | |
7bb48f84 | 653 | return 0; |
bcdedd0a YHJT |
654 | err_offset: |
655 | log_err("%s: you need to specify valid offset=\n", td->o.name); | |
656 | return 1; | |
53cdc686 JA |
657 | } |
658 | ||
afad68f7 ZY |
659 | int pre_read_files(struct thread_data *td) |
660 | { | |
661 | struct fio_file *f; | |
662 | unsigned int i; | |
663 | ||
664 | dprint(FD_FILE, "pre_read files\n"); | |
665 | ||
666 | for_each_file(td, f, i) { | |
667 | pre_read_file(td, f); | |
668 | } | |
669 | ||
670 | return 1; | |
671 | } | |
672 | ||
68727076 JA |
673 | int init_random_map(struct thread_data *td) |
674 | { | |
509eab12 | 675 | unsigned long long blocks, num_maps; |
68727076 JA |
676 | struct fio_file *f; |
677 | unsigned int i; | |
678 | ||
de8dd119 | 679 | if (td->o.norandommap || !td_random(td)) |
68727076 JA |
680 | return 0; |
681 | ||
682 | for_each_file(td, f, i) { | |
5ec10eaa JA |
683 | blocks = (f->real_file_size + td->o.rw_min_bs - 1) / |
684 | (unsigned long long) td->o.rw_min_bs; | |
685 | num_maps = (blocks + BLOCKS_PER_MAP - 1) / | |
686 | (unsigned long long) BLOCKS_PER_MAP; | |
de605666 | 687 | f->file_map = smalloc(num_maps * sizeof(int)); |
303032ae JA |
688 | if (f->file_map) { |
689 | f->num_maps = num_maps; | |
690 | continue; | |
68727076 | 691 | } |
2b386d25 | 692 | if (!td->o.softrandommap) { |
5ec10eaa JA |
693 | log_err("fio: failed allocating random map. If running" |
694 | " a large number of jobs, try the 'norandommap'" | |
2b386d25 JA |
695 | " option or set 'softrandommap'. Or give" |
696 | " a larger --alloc-size to fio.\n"); | |
68727076 JA |
697 | return 1; |
698 | } | |
303032ae JA |
699 | |
700 | log_info("fio: file %s failed allocating random map. Running " | |
701 | "job without.\n", f->file_name); | |
702 | f->num_maps = 0; | |
68727076 JA |
703 | } |
704 | ||
705 | return 0; | |
706 | } | |
707 | ||
53cdc686 JA |
708 | void close_files(struct thread_data *td) |
709 | { | |
0ab8db89 | 710 | struct fio_file *f; |
af52b345 | 711 | unsigned int i; |
53cdc686 | 712 | |
2be3eec3 JA |
713 | for_each_file(td, f, i) { |
714 | if (fio_file_open(f)) | |
715 | td_io_close_file(td, f); | |
716 | } | |
24ffd2c2 JA |
717 | } |
718 | ||
719 | void close_and_free_files(struct thread_data *td) | |
720 | { | |
721 | struct fio_file *f; | |
722 | unsigned int i; | |
723 | ||
ee56ad50 JA |
724 | dprint(FD_FILE, "close files\n"); |
725 | ||
0ab8db89 | 726 | for_each_file(td, f, i) { |
ffdfabd4 JA |
727 | if (td->o.unlink && f->filetype == FIO_TYPE_FILE) { |
728 | dprint(FD_FILE, "free unlink %s\n", f->file_name); | |
132ad46d | 729 | unlink(f->file_name); |
ffdfabd4 | 730 | } |
bdb4e2e9 | 731 | |
22a57ba8 JA |
732 | if (fio_file_open(f)) |
733 | td_io_close_file(td, f); | |
734 | ||
b9fbcf21 | 735 | remove_file_hash(f); |
b3dc7f07 | 736 | |
f17c4392 | 737 | sfree(f->file_name); |
fa1da865 JA |
738 | f->file_name = NULL; |
739 | ||
c343981b | 740 | if (f->file_map) { |
f17c4392 | 741 | sfree(f->file_map); |
c343981b JA |
742 | f->file_map = NULL; |
743 | } | |
78d99e6a | 744 | sfree(f); |
53cdc686 | 745 | } |
b4a6a59a | 746 | |
2dc1bbeb | 747 | td->o.filename = NULL; |
cade3ef4 | 748 | free(td->files); |
9efef3c4 | 749 | td->files_index = 0; |
b4a6a59a | 750 | td->files = NULL; |
2dc1bbeb | 751 | td->o.nr_files = 0; |
53cdc686 | 752 | } |
af52b345 | 753 | |
e3bab463 | 754 | static void get_file_type(struct fio_file *f) |
af52b345 JA |
755 | { |
756 | struct stat sb; | |
757 | ||
66159828 JA |
758 | if (!strcmp(f->file_name, "-")) |
759 | f->filetype = FIO_TYPE_PIPE; | |
760 | else | |
761 | f->filetype = FIO_TYPE_FILE; | |
af52b345 | 762 | |
e3bab463 | 763 | if (!lstat(f->file_name, &sb)) { |
af52b345 JA |
764 | if (S_ISBLK(sb.st_mode)) |
765 | f->filetype = FIO_TYPE_BD; | |
766 | else if (S_ISCHR(sb.st_mode)) | |
767 | f->filetype = FIO_TYPE_CHAR; | |
b5605e9d JA |
768 | else if (S_ISFIFO(sb.st_mode)) |
769 | f->filetype = FIO_TYPE_PIPE; | |
af52b345 JA |
770 | } |
771 | } | |
772 | ||
f29b25a3 | 773 | int add_file(struct thread_data *td, const char *fname) |
af52b345 | 774 | { |
7b4e4fe5 | 775 | int cur_files = td->files_index; |
bd0ee748 | 776 | char file_name[PATH_MAX]; |
af52b345 | 777 | struct fio_file *f; |
bd0ee748 | 778 | int len = 0; |
af52b345 | 779 | |
ee56ad50 JA |
780 | dprint(FD_FILE, "add file %s\n", fname); |
781 | ||
f17c4392 | 782 | f = smalloc(sizeof(*f)); |
c48c0be7 JA |
783 | if (!f) { |
784 | log_err("fio: smalloc OOM\n"); | |
785 | assert(0); | |
786 | } | |
787 | ||
af52b345 | 788 | f->fd = -1; |
bd0ee748 | 789 | |
fc99bc0d | 790 | if (td->files_size <= td->files_index) { |
4b341fca | 791 | int new_size = td->o.nr_files + 1; |
126d65c6 | 792 | |
fc99bc0d JA |
793 | dprint(FD_FILE, "resize file array to %d files\n", new_size); |
794 | ||
795 | td->files = realloc(td->files, new_size * sizeof(f)); | |
fc99bc0d JA |
796 | td->files_size = new_size; |
797 | } | |
8bb7679e | 798 | td->files[cur_files] = f; |
126d65c6 | 799 | |
07eb79df JA |
800 | /* |
801 | * init function, io engine may not be loaded yet | |
802 | */ | |
803 | if (td->io_ops && (td->io_ops->flags & FIO_DISKLESSIO)) | |
804 | f->real_file_size = -1ULL; | |
805 | ||
bd0ee748 JA |
806 | if (td->o.directory) |
807 | len = sprintf(file_name, "%s/", td->o.directory); | |
808 | ||
809 | sprintf(file_name + len, "%s", fname); | |
f17c4392 | 810 | f->file_name = smalloc_strdup(file_name); |
c48c0be7 JA |
811 | if (!f->file_name) { |
812 | log_err("fio: smalloc OOM\n"); | |
813 | assert(0); | |
814 | } | |
815 | ||
e3bab463 | 816 | get_file_type(f); |
af52b345 | 817 | |
4d4e80f2 JA |
818 | switch (td->o.file_lock_mode) { |
819 | case FILE_LOCK_NONE: | |
820 | break; | |
821 | case FILE_LOCK_READWRITE: | |
822 | f->lock = fio_mutex_rw_init(); | |
823 | break; | |
824 | case FILE_LOCK_EXCLUSIVE: | |
825 | f->lock = fio_mutex_init(1); | |
826 | break; | |
827 | default: | |
828 | log_err("fio: unknown lock mode: %d\n", td->o.file_lock_mode); | |
829 | assert(0); | |
830 | } | |
29c1349f | 831 | |
7b4e4fe5 | 832 | td->files_index++; |
1549441c JA |
833 | if (f->filetype == FIO_TYPE_FILE) |
834 | td->nr_normal_files++; | |
f29b25a3 | 835 | |
5ec10eaa JA |
836 | dprint(FD_FILE, "file %p \"%s\" added at %d\n", f, f->file_name, |
837 | cur_files); | |
9efef3c4 | 838 | |
f29b25a3 | 839 | return cur_files; |
af52b345 | 840 | } |
0ad920e7 JA |
841 | |
842 | void get_file(struct fio_file *f) | |
843 | { | |
8172fe97 | 844 | dprint(FD_FILE, "get file %s, ref=%d\n", f->file_name, f->references); |
d6aed795 | 845 | assert(fio_file_open(f)); |
0ad920e7 JA |
846 | f->references++; |
847 | } | |
848 | ||
6977bcd0 | 849 | int put_file(struct thread_data *td, struct fio_file *f) |
0ad920e7 | 850 | { |
98e1ac4e | 851 | int f_ret = 0, ret = 0; |
6977bcd0 | 852 | |
8172fe97 | 853 | dprint(FD_FILE, "put file %s, ref=%d\n", f->file_name, f->references); |
ee56ad50 | 854 | |
22a57ba8 JA |
855 | if (!fio_file_open(f)) { |
856 | assert(f->fd == -1); | |
6977bcd0 | 857 | return 0; |
22a57ba8 | 858 | } |
0ad920e7 JA |
859 | |
860 | assert(f->references); | |
861 | if (--f->references) | |
6977bcd0 | 862 | return 0; |
0ad920e7 | 863 | |
d424d4dd | 864 | if (should_fsync(td) && td->o.fsync_on_close) |
98e1ac4e | 865 | f_ret = fsync(f->fd); |
ebb1415f | 866 | |
0ad920e7 | 867 | if (td->io_ops->close_file) |
6977bcd0 | 868 | ret = td->io_ops->close_file(td, f); |
1020a139 | 869 | |
98e1ac4e | 870 | if (!ret) |
a5fb461f | 871 | ret = f_ret; |
98e1ac4e | 872 | |
0ad920e7 | 873 | td->nr_open_files--; |
d6aed795 | 874 | fio_file_clear_open(f); |
22a57ba8 | 875 | assert(f->fd == -1); |
6977bcd0 | 876 | return ret; |
0ad920e7 | 877 | } |
bbf6b540 | 878 | |
4d4e80f2 | 879 | void lock_file(struct thread_data *td, struct fio_file *f, enum fio_ddir ddir) |
b2bd2bd9 | 880 | { |
4d4e80f2 JA |
881 | if (!f->lock || td->o.file_lock_mode == FILE_LOCK_NONE) |
882 | return; | |
29c1349f | 883 | |
4d4e80f2 JA |
884 | if (f->lock_owner == td && f->lock_batch--) |
885 | return; | |
886 | ||
887 | if (td->o.file_lock_mode == FILE_LOCK_READWRITE) { | |
888 | if (ddir == DDIR_READ) | |
889 | fio_mutex_down_read(f->lock); | |
890 | else | |
891 | fio_mutex_down_write(f->lock); | |
892 | } else if (td->o.file_lock_mode == FILE_LOCK_EXCLUSIVE) | |
893 | fio_mutex_down(f->lock); | |
894 | ||
895 | f->lock_owner = td; | |
896 | f->lock_batch = td->o.lockfile_batch; | |
897 | f->lock_ddir = ddir; | |
b2bd2bd9 JA |
898 | } |
899 | ||
4d4e80f2 | 900 | void unlock_file(struct thread_data *td, struct fio_file *f) |
b2bd2bd9 | 901 | { |
4d4e80f2 JA |
902 | if (!f->lock || td->o.file_lock_mode == FILE_LOCK_NONE) |
903 | return; | |
904 | if (f->lock_batch) | |
905 | return; | |
906 | ||
907 | if (td->o.file_lock_mode == FILE_LOCK_READWRITE) { | |
908 | const int is_read = f->lock_ddir == DDIR_READ; | |
909 | int val = fio_mutex_getval(f->lock); | |
29c1349f | 910 | |
4d4e80f2 JA |
911 | if ((is_read && val == 1) || (!is_read && val == -1)) |
912 | f->lock_owner = NULL; | |
29c1349f | 913 | |
4d4e80f2 JA |
914 | if (is_read) |
915 | fio_mutex_up_read(f->lock); | |
916 | else | |
917 | fio_mutex_up_write(f->lock); | |
918 | } else if (td->o.file_lock_mode == FILE_LOCK_EXCLUSIVE) { | |
919 | int val = fio_mutex_getval(f->lock); | |
920 | ||
921 | if (val == 0) | |
922 | f->lock_owner = NULL; | |
923 | ||
924 | fio_mutex_up(f->lock); | |
29c1349f | 925 | } |
b2bd2bd9 JA |
926 | } |
927 | ||
4d4e80f2 JA |
928 | void unlock_file_all(struct thread_data *td, struct fio_file *f) |
929 | { | |
930 | if (f->lock_owner != td) | |
931 | return; | |
932 | ||
933 | f->lock_batch = 0; | |
934 | unlock_file(td, f); | |
935 | } | |
936 | ||
bbf6b540 JA |
937 | static int recurse_dir(struct thread_data *td, const char *dirname) |
938 | { | |
939 | struct dirent *dir; | |
940 | int ret = 0; | |
941 | DIR *D; | |
942 | ||
943 | D = opendir(dirname); | |
944 | if (!D) { | |
0ddb270c JA |
945 | char buf[FIO_VERROR_SIZE]; |
946 | ||
947 | snprintf(buf, FIO_VERROR_SIZE - 1, "opendir(%s)", dirname); | |
948 | td_verror(td, errno, buf); | |
bbf6b540 JA |
949 | return 1; |
950 | } | |
951 | ||
952 | while ((dir = readdir(D)) != NULL) { | |
953 | char full_path[PATH_MAX]; | |
954 | struct stat sb; | |
955 | ||
e85b2b83 JA |
956 | if (!strcmp(dir->d_name, ".") || !strcmp(dir->d_name, "..")) |
957 | continue; | |
96d32d51 | 958 | |
bbf6b540 JA |
959 | sprintf(full_path, "%s/%s", dirname, dir->d_name); |
960 | ||
961 | if (lstat(full_path, &sb) == -1) { | |
962 | if (errno != ENOENT) { | |
963 | td_verror(td, errno, "stat"); | |
964 | return 1; | |
965 | } | |
966 | } | |
967 | ||
968 | if (S_ISREG(sb.st_mode)) { | |
969 | add_file(td, full_path); | |
2dc1bbeb | 970 | td->o.nr_files++; |
bbf6b540 JA |
971 | continue; |
972 | } | |
0ddb270c JA |
973 | if (!S_ISDIR(sb.st_mode)) |
974 | continue; | |
bbf6b540 | 975 | |
5ec10eaa JA |
976 | ret = recurse_dir(td, full_path); |
977 | if (ret) | |
bbf6b540 JA |
978 | break; |
979 | } | |
980 | ||
981 | closedir(D); | |
982 | return ret; | |
983 | } | |
984 | ||
985 | int add_dir_files(struct thread_data *td, const char *path) | |
986 | { | |
0ddb270c JA |
987 | int ret = recurse_dir(td, path); |
988 | ||
989 | if (!ret) | |
990 | log_info("fio: opendir added %d files\n", td->o.nr_files); | |
991 | ||
992 | return ret; | |
bbf6b540 | 993 | } |
cade3ef4 JA |
994 | |
995 | void dup_files(struct thread_data *td, struct thread_data *org) | |
996 | { | |
997 | struct fio_file *f; | |
998 | unsigned int i; | |
9efef3c4 JA |
999 | |
1000 | dprint(FD_FILE, "dup files: %d\n", org->files_index); | |
cade3ef4 JA |
1001 | |
1002 | if (!org->files) | |
1003 | return; | |
1004 | ||
9efef3c4 | 1005 | td->files = malloc(org->files_index * sizeof(f)); |
cade3ef4 | 1006 | |
9efef3c4 | 1007 | for_each_file(org, f, i) { |
b0fe421a JA |
1008 | struct fio_file *__f; |
1009 | ||
f17c4392 | 1010 | __f = smalloc(sizeof(*__f)); |
c48c0be7 JA |
1011 | if (!__f) { |
1012 | log_err("fio: smalloc OOM\n"); | |
1013 | assert(0); | |
1014 | } | |
22a57ba8 | 1015 | __f->fd = -1; |
c48c0be7 | 1016 | |
bc3456fa | 1017 | if (f->file_name) { |
f17c4392 | 1018 | __f->file_name = smalloc_strdup(f->file_name); |
c48c0be7 JA |
1019 | if (!__f->file_name) { |
1020 | log_err("fio: smalloc OOM\n"); | |
1021 | assert(0); | |
1022 | } | |
1023 | ||
bc3456fa AC |
1024 | __f->filetype = f->filetype; |
1025 | } | |
b0fe421a JA |
1026 | |
1027 | td->files[i] = __f; | |
cade3ef4 JA |
1028 | } |
1029 | } | |
f29b25a3 JA |
1030 | |
1031 | /* | |
1032 | * Returns the index that matches the filename, or -1 if not there | |
1033 | */ | |
1034 | int get_fileno(struct thread_data *td, const char *fname) | |
1035 | { | |
1036 | struct fio_file *f; | |
1037 | unsigned int i; | |
1038 | ||
1039 | for_each_file(td, f, i) | |
1040 | if (!strcmp(f->file_name, fname)) | |
1041 | return i; | |
1042 | ||
1043 | return -1; | |
1044 | } | |
1045 | ||
1046 | /* | |
1047 | * For log usage, where we add/open/close files automatically | |
1048 | */ | |
1049 | void free_release_files(struct thread_data *td) | |
1050 | { | |
1051 | close_files(td); | |
1052 | td->files_index = 0; | |
1053 | td->nr_normal_files = 0; | |
1054 | } |