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 | ||
3baddf24 JA |
16 | /* |
17 | * Leaves f->fd open on success, caller must close | |
18 | */ | |
7bb48f84 | 19 | static int extend_file(struct thread_data *td, struct fio_file *f) |
25205e97 | 20 | { |
ea443657 | 21 | int r, new_layout = 0, unlink_file = 0, flags; |
25205e97 JA |
22 | unsigned long long left; |
23 | unsigned int bs; | |
24 | char *b; | |
b2a15192 | 25 | |
4241ea8f JA |
26 | if (read_only) { |
27 | log_err("fio: refusing extend of file due to read-only\n"); | |
28 | return 0; | |
29 | } | |
30 | ||
507a702f JA |
31 | /* |
32 | * check if we need to lay the file out complete again. fio | |
33 | * does that for operations involving reads, or for writes | |
34 | * where overwrite is set | |
35 | */ | |
ffdfabd4 JA |
36 | if (td_read(td) || (td_write(td) && td->o.overwrite) || |
37 | (td_write(td) && td->io_ops->flags & FIO_NOEXTEND)) | |
507a702f | 38 | new_layout = 1; |
ea443657 JA |
39 | if (td_write(td) && !td->o.overwrite) |
40 | unlink_file = 1; | |
507a702f | 41 | |
6ae1f57f | 42 | if (unlink_file || new_layout) { |
bd199f2b | 43 | dprint(FD_FILE, "layout unlink %s\n", f->file_name); |
982016d6 | 44 | if ((unlink(f->file_name) < 0) && (errno != ENOENT)) { |
7bb48f84 JA |
45 | td_verror(td, errno, "unlink"); |
46 | return 1; | |
47 | } | |
48 | } | |
49 | ||
507a702f JA |
50 | flags = O_WRONLY | O_CREAT; |
51 | if (new_layout) | |
52 | flags |= O_TRUNC; | |
53 | ||
ee56ad50 | 54 | dprint(FD_FILE, "open file %s, flags %x\n", f->file_name, flags); |
507a702f | 55 | f->fd = open(f->file_name, flags, 0644); |
53cdc686 | 56 | if (f->fd < 0) { |
e1161c32 | 57 | td_verror(td, errno, "open"); |
53cdc686 JA |
58 | return 1; |
59 | } | |
60 | ||
fc74ac1d SL |
61 | if (!new_layout) |
62 | goto done; | |
63 | ||
ee56ad50 JA |
64 | dprint(FD_FILE, "truncate file %s, size %llu\n", f->file_name, |
65 | f->real_file_size); | |
7bb48f84 | 66 | if (ftruncate(f->fd, f->real_file_size) == -1) { |
e1161c32 | 67 | td_verror(td, errno, "ftruncate"); |
53cdc686 JA |
68 | goto err; |
69 | } | |
70 | ||
fffca02d | 71 | #ifdef FIO_HAVE_FALLOCATE |
ee56ad50 JA |
72 | dprint(FD_FILE, "fallocate file %s, size %llu\n", f->file_name, |
73 | f->real_file_size); | |
739097e6 JA |
74 | r = posix_fallocate(f->fd, 0, f->real_file_size); |
75 | if (r < 0) | |
65942476 | 76 | log_err("fio: posix_fallocate fails: %s\n", strerror(-r)); |
fffca02d | 77 | #endif |
40f8298c | 78 | |
2dc1bbeb JA |
79 | b = malloc(td->o.max_bs[DDIR_WRITE]); |
80 | memset(b, 0, td->o.max_bs[DDIR_WRITE]); | |
53cdc686 | 81 | |
7bb48f84 | 82 | left = f->real_file_size; |
53cdc686 | 83 | while (left && !td->terminate) { |
2dc1bbeb | 84 | bs = td->o.max_bs[DDIR_WRITE]; |
53cdc686 JA |
85 | if (bs > left) |
86 | bs = left; | |
87 | ||
88 | r = write(f->fd, b, bs); | |
89 | ||
90 | if (r == (int) bs) { | |
91 | left -= bs; | |
92 | continue; | |
93 | } else { | |
94 | if (r < 0) | |
e1161c32 | 95 | td_verror(td, errno, "write"); |
53cdc686 | 96 | else |
e1161c32 | 97 | td_verror(td, EIO, "write"); |
53cdc686 JA |
98 | |
99 | break; | |
100 | } | |
101 | } | |
102 | ||
ffdfabd4 JA |
103 | if (td->terminate) { |
104 | dprint(FD_FILE, "terminate unlink %s\n", f->file_name); | |
53cdc686 | 105 | unlink(f->file_name); |
ffdfabd4 | 106 | } else if (td->o.create_fsync) { |
98e1ac4e JA |
107 | if (fsync(f->fd) < 0) { |
108 | td_verror(td, errno, "fsync"); | |
109 | goto err; | |
110 | } | |
111 | } | |
53cdc686 JA |
112 | |
113 | free(b); | |
507a702f | 114 | done: |
53cdc686 JA |
115 | return 0; |
116 | err: | |
117 | close(f->fd); | |
118 | f->fd = -1; | |
119 | return 1; | |
120 | } | |
121 | ||
afad68f7 ZY |
122 | static int pre_read_file(struct thread_data *td, struct fio_file *f) |
123 | { | |
b0f65863 | 124 | int r, did_open = 0, old_runstate; |
afad68f7 ZY |
125 | unsigned long long left; |
126 | unsigned int bs; | |
127 | char *b; | |
128 | ||
b0f65863 JA |
129 | if (!(f->flags & FIO_FILE_OPEN)) { |
130 | if (td->io_ops->open_file(td, f)) { | |
131 | log_err("fio: cannot pre-read, failed to open file\n"); | |
132 | return 1; | |
133 | } | |
134 | did_open = 1; | |
135 | } | |
136 | ||
137 | old_runstate = td->runstate; | |
138 | td_set_runstate(td, TD_PRE_READING); | |
139 | ||
afad68f7 ZY |
140 | bs = td->o.max_bs[DDIR_READ]; |
141 | b = malloc(bs); | |
142 | memset(b, 0, bs); | |
143 | ||
144 | lseek(f->fd, f->file_offset, SEEK_SET); | |
145 | left = f->io_size; | |
146 | ||
147 | while (left && !td->terminate) { | |
148 | if (bs > left) | |
149 | bs = left; | |
150 | ||
151 | r = read(f->fd, b, bs); | |
152 | ||
153 | if (r == (int) bs) { | |
154 | left -= bs; | |
155 | continue; | |
156 | } else { | |
157 | td_verror(td, EIO, "pre_read"); | |
158 | break; | |
159 | } | |
160 | } | |
161 | ||
b0f65863 JA |
162 | td_set_runstate(td, old_runstate); |
163 | ||
164 | if (did_open) | |
165 | td->io_ops->close_file(td, f); | |
afad68f7 ZY |
166 | free(b); |
167 | return 0; | |
168 | } | |
169 | ||
7bb48f84 | 170 | static unsigned long long get_rand_file_size(struct thread_data *td) |
9c60ce64 | 171 | { |
dc873b6f | 172 | unsigned long long ret, sized; |
9c60ce64 JA |
173 | long r; |
174 | ||
9c60ce64 | 175 | r = os_random_long(&td->file_size_state); |
dc873b6f JA |
176 | sized = td->o.file_size_high - td->o.file_size_low; |
177 | ret = (unsigned long long) ((double) sized * (r / (OS_RAND_MAX + 1.0))); | |
5ec10eaa | 178 | ret += td->o.file_size_low; |
2dc1bbeb | 179 | ret -= (ret % td->o.rw_min_bs); |
9c60ce64 JA |
180 | return ret; |
181 | } | |
182 | ||
53cdc686 JA |
183 | static int file_size(struct thread_data *td, struct fio_file *f) |
184 | { | |
185 | struct stat st; | |
186 | ||
df9c26b1 | 187 | if (stat(f->file_name, &st) == -1) { |
7bb48f84 JA |
188 | td_verror(td, errno, "fstat"); |
189 | return 1; | |
190 | } | |
53cdc686 | 191 | |
7bb48f84 | 192 | f->real_file_size = st.st_size; |
53cdc686 JA |
193 | return 0; |
194 | } | |
195 | ||
196 | static int bdev_size(struct thread_data *td, struct fio_file *f) | |
197 | { | |
198 | unsigned long long bytes; | |
199 | int r; | |
200 | ||
df9c26b1 JA |
201 | if (td->io_ops->open_file(td, f)) { |
202 | log_err("fio: failed opening blockdev %s for size check\n", | |
203 | f->file_name); | |
204 | return 1; | |
205 | } | |
206 | ||
53cdc686 JA |
207 | r = blockdev_size(f->fd, &bytes); |
208 | if (r) { | |
e1161c32 | 209 | td_verror(td, r, "blockdev_size"); |
df9c26b1 | 210 | goto err; |
53cdc686 JA |
211 | } |
212 | ||
7ab077ab JA |
213 | if (!bytes) { |
214 | log_err("%s: zero sized block device?\n", f->file_name); | |
df9c26b1 | 215 | goto err; |
7ab077ab JA |
216 | } |
217 | ||
53cdc686 | 218 | f->real_file_size = bytes; |
53cdc686 | 219 | return 0; |
df9c26b1 JA |
220 | err: |
221 | td->io_ops->close_file(td, f); | |
222 | return 1; | |
53cdc686 JA |
223 | } |
224 | ||
225 | static int get_file_size(struct thread_data *td, struct fio_file *f) | |
226 | { | |
227 | int ret = 0; | |
228 | ||
409b3417 JA |
229 | if (f->flags & FIO_SIZE_KNOWN) |
230 | return 0; | |
231 | ||
7bb48f84 JA |
232 | if (f->filetype == FIO_TYPE_FILE) |
233 | ret = file_size(td, f); | |
234 | else if (f->filetype == FIO_TYPE_BD) | |
53cdc686 JA |
235 | ret = bdev_size(td, f); |
236 | else | |
237 | f->real_file_size = -1; | |
238 | ||
239 | if (ret) | |
240 | return ret; | |
241 | ||
242 | if (f->file_offset > f->real_file_size) { | |
5ec10eaa JA |
243 | log_err("%s: offset extends end (%Lu > %Lu)\n", td->o.name, |
244 | f->file_offset, f->real_file_size); | |
53cdc686 JA |
245 | return 1; |
246 | } | |
247 | ||
409b3417 | 248 | f->flags |= FIO_SIZE_KNOWN; |
53cdc686 JA |
249 | return 0; |
250 | } | |
251 | ||
3baddf24 JA |
252 | static int __file_invalidate_cache(struct thread_data *td, struct fio_file *f, |
253 | unsigned long long off, | |
254 | unsigned long long len) | |
e5b401d4 JA |
255 | { |
256 | int ret = 0; | |
257 | ||
58726a10 | 258 | if (len == -1ULL) { |
3baddf24 | 259 | len = f->io_size; |
58726a10 JA |
260 | if (len == -1ULL && td->o.fill_device) |
261 | return 0; | |
262 | } | |
3baddf24 JA |
263 | if (off == -1ULL) |
264 | off = f->file_offset; | |
ee56ad50 | 265 | |
3baddf24 JA |
266 | dprint(FD_IO, "invalidate cache %s: %llu/%llu\n", f->file_name, off, |
267 | len); | |
b5af8293 | 268 | |
e5b401d4 JA |
269 | /* |
270 | * FIXME: add blockdev flushing too | |
271 | */ | |
b5af8293 | 272 | if (f->mmap) |
3baddf24 | 273 | ret = madvise(f->mmap, len, MADV_DONTNEED); |
5ec10eaa | 274 | else if (f->filetype == FIO_TYPE_FILE) { |
3baddf24 | 275 | ret = fadvise(f->fd, off, len, POSIX_FADV_DONTNEED); |
5ec10eaa | 276 | } else if (f->filetype == FIO_TYPE_BD) { |
b5af8293 | 277 | ret = blockdev_invalidate_cache(f->fd); |
7e0e25c9 | 278 | if (ret < 0 && errno == EACCES && geteuid()) { |
7172cfe8 | 279 | if (!root_warn) { |
5ec10eaa JA |
280 | log_err("fio: only root may flush block " |
281 | "devices. Cache flush bypassed!\n"); | |
7172cfe8 JA |
282 | root_warn = 1; |
283 | } | |
7e0e25c9 JA |
284 | ret = 0; |
285 | } | |
b5605e9d | 286 | } else if (f->filetype == FIO_TYPE_CHAR || f->filetype == FIO_TYPE_PIPE) |
e5b401d4 JA |
287 | ret = 0; |
288 | ||
289 | if (ret < 0) { | |
e1161c32 | 290 | td_verror(td, errno, "invalidate_cache"); |
e5b401d4 | 291 | return 1; |
3baddf24 JA |
292 | } else if (ret > 0) { |
293 | td_verror(td, ret, "invalidate_cache"); | |
294 | return 1; | |
e5b401d4 JA |
295 | } |
296 | ||
ad2da605 | 297 | return ret; |
3baddf24 JA |
298 | |
299 | } | |
300 | ||
301 | int file_invalidate_cache(struct thread_data *td, struct fio_file *f) | |
302 | { | |
a5fb461f JA |
303 | if (!(f->flags & FIO_FILE_OPEN)) |
304 | return 0; | |
305 | ||
3baddf24 | 306 | return __file_invalidate_cache(td, f, -1, -1); |
e5b401d4 JA |
307 | } |
308 | ||
6977bcd0 | 309 | int generic_close_file(struct thread_data fio_unused *td, struct fio_file *f) |
53cdc686 | 310 | { |
6977bcd0 JA |
311 | int ret = 0; |
312 | ||
ee56ad50 | 313 | dprint(FD_FILE, "fd close %s\n", f->file_name); |
4906e0b5 JA |
314 | |
315 | remove_file_hash(f); | |
316 | ||
6977bcd0 JA |
317 | if (close(f->fd) < 0) |
318 | ret = errno; | |
319 | ||
b5af8293 | 320 | f->fd = -1; |
6977bcd0 | 321 | return ret; |
53cdc686 JA |
322 | } |
323 | ||
4d4e80f2 | 324 | static int file_lookup_open(struct fio_file *f, int flags) |
53cdc686 | 325 | { |
29c1349f | 326 | struct fio_file *__f; |
4d4e80f2 JA |
327 | int from_hash; |
328 | ||
329 | __f = lookup_file_hash(f->file_name); | |
330 | if (__f) { | |
9efef3c4 | 331 | dprint(FD_FILE, "found file in hash %s\n", f->file_name); |
4d4e80f2 JA |
332 | /* |
333 | * racy, need the __f->lock locked | |
334 | */ | |
335 | f->lock = __f->lock; | |
336 | f->lock_owner = __f->lock_owner; | |
337 | f->lock_batch = __f->lock_batch; | |
338 | f->lock_ddir = __f->lock_ddir; | |
4d4e80f2 JA |
339 | from_hash = 1; |
340 | } else { | |
9efef3c4 | 341 | dprint(FD_FILE, "file not found in hash %s\n", f->file_name); |
4d4e80f2 JA |
342 | from_hash = 0; |
343 | } | |
344 | ||
e8670ef8 | 345 | f->fd = open(f->file_name, flags, 0600); |
4d4e80f2 JA |
346 | return from_hash; |
347 | } | |
348 | ||
349 | int generic_open_file(struct thread_data *td, struct fio_file *f) | |
350 | { | |
66159828 | 351 | int is_std = 0; |
53cdc686 | 352 | int flags = 0; |
29c1349f | 353 | int from_hash = 0; |
53cdc686 | 354 | |
ee56ad50 JA |
355 | dprint(FD_FILE, "fd open %s\n", f->file_name); |
356 | ||
66159828 JA |
357 | if (!strcmp(f->file_name, "-")) { |
358 | if (td_rw(td)) { | |
359 | log_err("fio: can't read/write to stdin/out\n"); | |
360 | return 1; | |
361 | } | |
362 | is_std = 1; | |
ce98fa66 JA |
363 | |
364 | /* | |
365 | * move output logging to stderr, if we are writing to stdout | |
366 | */ | |
367 | if (td_write(td)) | |
368 | f_out = stderr; | |
66159828 JA |
369 | } |
370 | ||
2dc1bbeb | 371 | if (td->o.odirect) |
2fd233b7 | 372 | flags |= OS_O_DIRECT; |
2dc1bbeb | 373 | if (td->o.sync_io) |
2fd233b7 | 374 | flags |= O_SYNC; |
ad92396c | 375 | if (f->filetype != FIO_TYPE_FILE) |
5921e80c | 376 | flags |= FIO_O_NOATIME; |
814452bd JA |
377 | if (td->o.create_on_open) |
378 | flags |= O_CREAT; | |
53cdc686 | 379 | |
056f3459 | 380 | open_again: |
660a1cb5 | 381 | if (td_write(td)) { |
17308158 JA |
382 | if (!read_only) |
383 | flags |= O_RDWR; | |
53cdc686 | 384 | |
af52b345 | 385 | if (f->filetype == FIO_TYPE_FILE) |
2fd233b7 | 386 | flags |= O_CREAT; |
2fd233b7 | 387 | |
66159828 JA |
388 | if (is_std) |
389 | f->fd = dup(STDOUT_FILENO); | |
4d4e80f2 JA |
390 | else |
391 | from_hash = file_lookup_open(f, flags); | |
2fd233b7 | 392 | } else { |
4241ea8f | 393 | if (f->filetype == FIO_TYPE_CHAR && !read_only) |
2fd233b7 JA |
394 | flags |= O_RDWR; |
395 | else | |
396 | flags |= O_RDONLY; | |
397 | ||
66159828 JA |
398 | if (is_std) |
399 | f->fd = dup(STDIN_FILENO); | |
4d4e80f2 JA |
400 | else |
401 | from_hash = file_lookup_open(f, flags); | |
53cdc686 JA |
402 | } |
403 | ||
404 | if (f->fd == -1) { | |
e4e33258 | 405 | char buf[FIO_VERROR_SIZE]; |
e1161c32 JA |
406 | int __e = errno; |
407 | ||
5921e80c JA |
408 | if (errno == EPERM && (flags & FIO_O_NOATIME)) { |
409 | flags &= ~FIO_O_NOATIME; | |
056f3459 AC |
410 | goto open_again; |
411 | } | |
412 | ||
e8670ef8 | 413 | snprintf(buf, sizeof(buf) - 1, "open(%s)", f->file_name); |
e4e33258 JA |
414 | |
415 | td_verror(td, __e, buf); | |
53cdc686 JA |
416 | } |
417 | ||
29c1349f JA |
418 | if (!from_hash && f->fd != -1) { |
419 | if (add_file_hash(f)) { | |
420 | int ret; | |
421 | ||
422 | /* | |
423 | * OK to ignore, we haven't done anything with it | |
424 | */ | |
425 | ret = generic_close_file(td, f); | |
426 | goto open_again; | |
427 | } | |
428 | } | |
4906e0b5 | 429 | |
53cdc686 | 430 | return 0; |
b5af8293 JA |
431 | } |
432 | ||
df9c26b1 | 433 | int generic_get_file_size(struct thread_data *td, struct fio_file *f) |
21972cde | 434 | { |
df9c26b1 | 435 | return get_file_size(td, f); |
21972cde JA |
436 | } |
437 | ||
7bb48f84 JA |
438 | /* |
439 | * open/close all files, so that ->real_file_size gets set | |
440 | */ | |
bab3fd58 | 441 | static int get_file_sizes(struct thread_data *td) |
7bb48f84 JA |
442 | { |
443 | struct fio_file *f; | |
444 | unsigned int i; | |
bab3fd58 | 445 | int err = 0; |
7bb48f84 JA |
446 | |
447 | for_each_file(td, f, i) { | |
5ec10eaa JA |
448 | dprint(FD_FILE, "get file size for %p/%d/%p\n", f, i, |
449 | f->file_name); | |
9efef3c4 | 450 | |
99a47c69 | 451 | if (td_io_get_file_size(td, f)) { |
40b44f4a JA |
452 | if (td->error != ENOENT) { |
453 | log_err("%s\n", td->verror); | |
454 | err = 1; | |
455 | } | |
541d66d7 | 456 | clear_error(td); |
07eb79df | 457 | } |
409b3417 JA |
458 | |
459 | if (f->real_file_size == -1ULL && td->o.size) | |
460 | f->real_file_size = td->o.size / td->o.nr_files; | |
7bb48f84 | 461 | } |
bab3fd58 JA |
462 | |
463 | return err; | |
7bb48f84 JA |
464 | } |
465 | ||
466 | /* | |
467 | * Open the files and setup files sizes, creating files if necessary. | |
468 | */ | |
53cdc686 JA |
469 | int setup_files(struct thread_data *td) |
470 | { | |
7bb48f84 | 471 | unsigned long long total_size, extend_size; |
53cdc686 | 472 | struct fio_file *f; |
af52b345 | 473 | unsigned int i; |
000b0803 | 474 | int err = 0, need_extend; |
53cdc686 | 475 | |
ee56ad50 JA |
476 | dprint(FD_FILE, "setup files\n"); |
477 | ||
691c8fb0 JA |
478 | if (td->o.read_iolog_file) |
479 | return 0; | |
480 | ||
53cdc686 JA |
481 | /* |
482 | * if ioengine defines a setup() method, it's responsible for | |
7bb48f84 JA |
483 | * opening the files and setting f->real_file_size to indicate |
484 | * the valid range for that file. | |
53cdc686 JA |
485 | */ |
486 | if (td->io_ops->setup) | |
7bb48f84 JA |
487 | err = td->io_ops->setup(td); |
488 | else | |
bab3fd58 | 489 | err = get_file_sizes(td); |
53cdc686 | 490 | |
f1027063 JA |
491 | if (err) |
492 | return err; | |
493 | ||
0a7eb121 | 494 | /* |
7bb48f84 JA |
495 | * check sizes. if the files/devices do not exist and the size |
496 | * isn't passed to fio, abort. | |
0a7eb121 | 497 | */ |
7bb48f84 JA |
498 | total_size = 0; |
499 | for_each_file(td, f, i) { | |
500 | if (f->real_file_size == -1ULL) | |
501 | total_size = -1ULL; | |
502 | else | |
503 | total_size += f->real_file_size; | |
504 | } | |
0a7eb121 | 505 | |
7bb48f84 JA |
506 | /* |
507 | * device/file sizes are zero and no size given, punt | |
508 | */ | |
1f809d15 | 509 | if ((!total_size || total_size == -1ULL) && !td->o.size && |
aa31f1f1 | 510 | !(td->io_ops->flags & FIO_NOIO) && !td->o.fill_device) { |
7bb48f84 | 511 | log_err("%s: you need to specify size=\n", td->o.name); |
e1161c32 | 512 | td_verror(td, EINVAL, "total_file_size"); |
53cdc686 JA |
513 | return 1; |
514 | } | |
515 | ||
7bb48f84 JA |
516 | /* |
517 | * now file sizes are known, so we can set ->io_size. if size= is | |
518 | * not given, ->io_size is just equal to ->real_file_size. if size | |
519 | * is given, ->io_size is size / nr_files. | |
520 | */ | |
521 | extend_size = total_size = 0; | |
522 | need_extend = 0; | |
523 | for_each_file(td, f, i) { | |
bcdedd0a YHJT |
524 | f->file_offset = td->o.start_offset; |
525 | ||
7bb48f84 JA |
526 | if (!td->o.file_size_low) { |
527 | /* | |
528 | * no file size range given, file size is equal to | |
529 | * total size divided by number of files. if that is | |
530 | * zero, set it to the real file size. | |
531 | */ | |
532 | f->io_size = td->o.size / td->o.nr_files; | |
65bdb10a | 533 | if (!f->io_size) |
273f8c91 | 534 | f->io_size = f->real_file_size - f->file_offset; |
7bb48f84 JA |
535 | } else if (f->real_file_size < td->o.file_size_low || |
536 | f->real_file_size > td->o.file_size_high) { | |
5ec10eaa | 537 | if (f->file_offset > td->o.file_size_low) |
bcdedd0a | 538 | goto err_offset; |
7bb48f84 JA |
539 | /* |
540 | * file size given. if it's fixed, use that. if it's a | |
541 | * range, generate a random size in-between. | |
542 | */ | |
5ec10eaa JA |
543 | if (td->o.file_size_low == td->o.file_size_high) { |
544 | f->io_size = td->o.file_size_low | |
545 | - f->file_offset; | |
546 | } else { | |
547 | f->io_size = get_rand_file_size(td) | |
548 | - f->file_offset; | |
549 | } | |
65bdb10a | 550 | } else |
bcdedd0a | 551 | f->io_size = f->real_file_size - f->file_offset; |
53cdc686 | 552 | |
7bb48f84 JA |
553 | if (f->io_size == -1ULL) |
554 | total_size = -1ULL; | |
555 | else | |
556 | total_size += f->io_size; | |
557 | ||
558 | if (f->filetype == FIO_TYPE_FILE && | |
bcdedd0a | 559 | (f->io_size + f->file_offset) > f->real_file_size && |
7bb48f84 | 560 | !(td->io_ops->flags & FIO_DISKLESSIO)) { |
814452bd JA |
561 | if (!td->o.create_on_open) { |
562 | need_extend++; | |
563 | extend_size += (f->io_size + f->file_offset); | |
564 | } else | |
565 | f->real_file_size = f->io_size + f->file_offset; | |
7bb48f84 | 566 | f->flags |= FIO_FILE_EXTEND; |
5ec10eaa | 567 | } |
7bb48f84 | 568 | } |
53cdc686 | 569 | |
2298290e | 570 | if (!td->o.size || td->o.size > total_size) |
7bb48f84 | 571 | td->o.size = total_size; |
21972cde | 572 | |
7bb48f84 JA |
573 | /* |
574 | * See if we need to extend some files | |
575 | */ | |
576 | if (need_extend) { | |
577 | temp_stall_ts = 1; | |
a7ba8c5f SSY |
578 | if (!terse_output) |
579 | log_info("%s: Laying out IO file(s) (%u file(s) /" | |
580 | " %LuMiB)\n", td->o.name, need_extend, | |
581 | extend_size >> 20); | |
7bb48f84 JA |
582 | |
583 | for_each_file(td, f, i) { | |
3baddf24 JA |
584 | unsigned long long old_len, extend_len; |
585 | ||
7bb48f84 JA |
586 | if (!(f->flags & FIO_FILE_EXTEND)) |
587 | continue; | |
588 | ||
409b3417 | 589 | assert(f->filetype == FIO_TYPE_FILE); |
7bb48f84 | 590 | f->flags &= ~FIO_FILE_EXTEND; |
3baddf24 JA |
591 | old_len = f->real_file_size; |
592 | extend_len = f->io_size + f->file_offset - old_len; | |
bcdedd0a | 593 | f->real_file_size = (f->io_size + f->file_offset); |
7bb48f84 JA |
594 | err = extend_file(td, f); |
595 | if (err) | |
3baddf24 JA |
596 | break; |
597 | ||
598 | err = __file_invalidate_cache(td, f, old_len, | |
599 | extend_len); | |
600 | close(f->fd); | |
601 | f->fd = -1; | |
602 | if (err) | |
7bb48f84 JA |
603 | break; |
604 | } | |
605 | temp_stall_ts = 0; | |
606 | } | |
607 | ||
608 | if (err) | |
609 | return err; | |
610 | ||
611 | if (!td->o.zone_size) | |
612 | td->o.zone_size = td->o.size; | |
613 | ||
ea966f81 JA |
614 | /* |
615 | * iolog already set the total io size, if we read back | |
616 | * stored entries. | |
617 | */ | |
618 | if (!td->o.read_iolog_file) | |
619 | td->total_io_size = td->o.size * td->o.loops; | |
7bb48f84 | 620 | return 0; |
bcdedd0a YHJT |
621 | err_offset: |
622 | log_err("%s: you need to specify valid offset=\n", td->o.name); | |
623 | return 1; | |
53cdc686 JA |
624 | } |
625 | ||
afad68f7 ZY |
626 | int pre_read_files(struct thread_data *td) |
627 | { | |
628 | struct fio_file *f; | |
629 | unsigned int i; | |
630 | ||
631 | dprint(FD_FILE, "pre_read files\n"); | |
632 | ||
633 | for_each_file(td, f, i) { | |
634 | pre_read_file(td, f); | |
635 | } | |
636 | ||
637 | return 1; | |
638 | } | |
639 | ||
68727076 JA |
640 | int init_random_map(struct thread_data *td) |
641 | { | |
509eab12 | 642 | unsigned long long blocks, num_maps; |
68727076 JA |
643 | struct fio_file *f; |
644 | unsigned int i; | |
645 | ||
de8dd119 | 646 | if (td->o.norandommap || !td_random(td)) |
68727076 JA |
647 | return 0; |
648 | ||
649 | for_each_file(td, f, i) { | |
5ec10eaa JA |
650 | blocks = (f->real_file_size + td->o.rw_min_bs - 1) / |
651 | (unsigned long long) td->o.rw_min_bs; | |
652 | num_maps = (blocks + BLOCKS_PER_MAP - 1) / | |
653 | (unsigned long long) BLOCKS_PER_MAP; | |
de605666 | 654 | f->file_map = smalloc(num_maps * sizeof(int)); |
303032ae JA |
655 | if (f->file_map) { |
656 | f->num_maps = num_maps; | |
657 | continue; | |
68727076 | 658 | } |
2b386d25 | 659 | if (!td->o.softrandommap) { |
5ec10eaa JA |
660 | log_err("fio: failed allocating random map. If running" |
661 | " a large number of jobs, try the 'norandommap'" | |
2b386d25 JA |
662 | " option or set 'softrandommap'. Or give" |
663 | " a larger --alloc-size to fio.\n"); | |
68727076 JA |
664 | return 1; |
665 | } | |
303032ae JA |
666 | |
667 | log_info("fio: file %s failed allocating random map. Running " | |
668 | "job without.\n", f->file_name); | |
669 | f->num_maps = 0; | |
68727076 JA |
670 | } |
671 | ||
672 | return 0; | |
673 | } | |
674 | ||
53cdc686 JA |
675 | void close_files(struct thread_data *td) |
676 | { | |
0ab8db89 | 677 | struct fio_file *f; |
af52b345 | 678 | unsigned int i; |
53cdc686 | 679 | |
24ffd2c2 JA |
680 | for_each_file(td, f, i) |
681 | td_io_close_file(td, f); | |
682 | } | |
683 | ||
684 | void close_and_free_files(struct thread_data *td) | |
685 | { | |
686 | struct fio_file *f; | |
687 | unsigned int i; | |
688 | ||
ee56ad50 JA |
689 | dprint(FD_FILE, "close files\n"); |
690 | ||
0ab8db89 | 691 | for_each_file(td, f, i) { |
ffdfabd4 JA |
692 | if (td->o.unlink && f->filetype == FIO_TYPE_FILE) { |
693 | dprint(FD_FILE, "free unlink %s\n", f->file_name); | |
132ad46d | 694 | unlink(f->file_name); |
ffdfabd4 | 695 | } |
bdb4e2e9 | 696 | |
b5af8293 | 697 | td_io_close_file(td, f); |
b9fbcf21 | 698 | remove_file_hash(f); |
b3dc7f07 | 699 | |
f17c4392 | 700 | sfree(f->file_name); |
fa1da865 JA |
701 | f->file_name = NULL; |
702 | ||
c343981b | 703 | if (f->file_map) { |
f17c4392 | 704 | sfree(f->file_map); |
c343981b JA |
705 | f->file_map = NULL; |
706 | } | |
78d99e6a | 707 | sfree(f); |
53cdc686 | 708 | } |
b4a6a59a | 709 | |
2dc1bbeb | 710 | td->o.filename = NULL; |
cade3ef4 | 711 | free(td->files); |
9efef3c4 | 712 | td->files_index = 0; |
b4a6a59a | 713 | td->files = NULL; |
2dc1bbeb | 714 | td->o.nr_files = 0; |
53cdc686 | 715 | } |
af52b345 | 716 | |
e3bab463 | 717 | static void get_file_type(struct fio_file *f) |
af52b345 JA |
718 | { |
719 | struct stat sb; | |
720 | ||
66159828 JA |
721 | if (!strcmp(f->file_name, "-")) |
722 | f->filetype = FIO_TYPE_PIPE; | |
723 | else | |
724 | f->filetype = FIO_TYPE_FILE; | |
af52b345 | 725 | |
e3bab463 | 726 | if (!lstat(f->file_name, &sb)) { |
af52b345 JA |
727 | if (S_ISBLK(sb.st_mode)) |
728 | f->filetype = FIO_TYPE_BD; | |
729 | else if (S_ISCHR(sb.st_mode)) | |
730 | f->filetype = FIO_TYPE_CHAR; | |
b5605e9d JA |
731 | else if (S_ISFIFO(sb.st_mode)) |
732 | f->filetype = FIO_TYPE_PIPE; | |
af52b345 JA |
733 | } |
734 | } | |
735 | ||
f29b25a3 | 736 | int add_file(struct thread_data *td, const char *fname) |
af52b345 | 737 | { |
7b4e4fe5 | 738 | int cur_files = td->files_index; |
bd0ee748 | 739 | char file_name[PATH_MAX]; |
af52b345 | 740 | struct fio_file *f; |
bd0ee748 | 741 | int len = 0; |
af52b345 | 742 | |
ee56ad50 JA |
743 | dprint(FD_FILE, "add file %s\n", fname); |
744 | ||
f17c4392 | 745 | f = smalloc(sizeof(*f)); |
c48c0be7 JA |
746 | if (!f) { |
747 | log_err("fio: smalloc OOM\n"); | |
748 | assert(0); | |
749 | } | |
750 | ||
af52b345 | 751 | f->fd = -1; |
bd0ee748 | 752 | |
fc99bc0d | 753 | if (td->files_size <= td->files_index) { |
4b341fca | 754 | int new_size = td->o.nr_files + 1; |
126d65c6 | 755 | |
fc99bc0d JA |
756 | dprint(FD_FILE, "resize file array to %d files\n", new_size); |
757 | ||
758 | td->files = realloc(td->files, new_size * sizeof(f)); | |
fc99bc0d JA |
759 | td->files_size = new_size; |
760 | } | |
8bb7679e | 761 | td->files[cur_files] = f; |
126d65c6 | 762 | |
07eb79df JA |
763 | /* |
764 | * init function, io engine may not be loaded yet | |
765 | */ | |
766 | if (td->io_ops && (td->io_ops->flags & FIO_DISKLESSIO)) | |
767 | f->real_file_size = -1ULL; | |
768 | ||
bd0ee748 JA |
769 | if (td->o.directory) |
770 | len = sprintf(file_name, "%s/", td->o.directory); | |
771 | ||
772 | sprintf(file_name + len, "%s", fname); | |
f17c4392 | 773 | f->file_name = smalloc_strdup(file_name); |
c48c0be7 JA |
774 | if (!f->file_name) { |
775 | log_err("fio: smalloc OOM\n"); | |
776 | assert(0); | |
777 | } | |
778 | ||
e3bab463 | 779 | get_file_type(f); |
af52b345 | 780 | |
4d4e80f2 JA |
781 | switch (td->o.file_lock_mode) { |
782 | case FILE_LOCK_NONE: | |
783 | break; | |
784 | case FILE_LOCK_READWRITE: | |
785 | f->lock = fio_mutex_rw_init(); | |
786 | break; | |
787 | case FILE_LOCK_EXCLUSIVE: | |
788 | f->lock = fio_mutex_init(1); | |
789 | break; | |
790 | default: | |
791 | log_err("fio: unknown lock mode: %d\n", td->o.file_lock_mode); | |
792 | assert(0); | |
793 | } | |
29c1349f | 794 | |
7b4e4fe5 | 795 | td->files_index++; |
1549441c JA |
796 | if (f->filetype == FIO_TYPE_FILE) |
797 | td->nr_normal_files++; | |
f29b25a3 | 798 | |
5ec10eaa JA |
799 | dprint(FD_FILE, "file %p \"%s\" added at %d\n", f, f->file_name, |
800 | cur_files); | |
9efef3c4 | 801 | |
f29b25a3 | 802 | return cur_files; |
af52b345 | 803 | } |
0ad920e7 JA |
804 | |
805 | void get_file(struct fio_file *f) | |
806 | { | |
8172fe97 | 807 | dprint(FD_FILE, "get file %s, ref=%d\n", f->file_name, f->references); |
97af62ce | 808 | assert(f->flags & FIO_FILE_OPEN); |
0ad920e7 JA |
809 | f->references++; |
810 | } | |
811 | ||
6977bcd0 | 812 | int put_file(struct thread_data *td, struct fio_file *f) |
0ad920e7 | 813 | { |
98e1ac4e | 814 | int f_ret = 0, ret = 0; |
6977bcd0 | 815 | |
8172fe97 | 816 | dprint(FD_FILE, "put file %s, ref=%d\n", f->file_name, f->references); |
ee56ad50 | 817 | |
0ad920e7 | 818 | if (!(f->flags & FIO_FILE_OPEN)) |
6977bcd0 | 819 | return 0; |
0ad920e7 JA |
820 | |
821 | assert(f->references); | |
822 | if (--f->references) | |
6977bcd0 | 823 | return 0; |
0ad920e7 | 824 | |
d424d4dd | 825 | if (should_fsync(td) && td->o.fsync_on_close) |
98e1ac4e | 826 | f_ret = fsync(f->fd); |
ebb1415f | 827 | |
0ad920e7 | 828 | if (td->io_ops->close_file) |
6977bcd0 | 829 | ret = td->io_ops->close_file(td, f); |
1020a139 | 830 | |
98e1ac4e | 831 | if (!ret) |
a5fb461f | 832 | ret = f_ret; |
98e1ac4e | 833 | |
0ad920e7 JA |
834 | td->nr_open_files--; |
835 | f->flags &= ~FIO_FILE_OPEN; | |
6977bcd0 | 836 | return ret; |
0ad920e7 | 837 | } |
bbf6b540 | 838 | |
4d4e80f2 | 839 | void lock_file(struct thread_data *td, struct fio_file *f, enum fio_ddir ddir) |
b2bd2bd9 | 840 | { |
4d4e80f2 JA |
841 | if (!f->lock || td->o.file_lock_mode == FILE_LOCK_NONE) |
842 | return; | |
29c1349f | 843 | |
4d4e80f2 JA |
844 | if (f->lock_owner == td && f->lock_batch--) |
845 | return; | |
846 | ||
847 | if (td->o.file_lock_mode == FILE_LOCK_READWRITE) { | |
848 | if (ddir == DDIR_READ) | |
849 | fio_mutex_down_read(f->lock); | |
850 | else | |
851 | fio_mutex_down_write(f->lock); | |
852 | } else if (td->o.file_lock_mode == FILE_LOCK_EXCLUSIVE) | |
853 | fio_mutex_down(f->lock); | |
854 | ||
855 | f->lock_owner = td; | |
856 | f->lock_batch = td->o.lockfile_batch; | |
857 | f->lock_ddir = ddir; | |
b2bd2bd9 JA |
858 | } |
859 | ||
4d4e80f2 | 860 | void unlock_file(struct thread_data *td, struct fio_file *f) |
b2bd2bd9 | 861 | { |
4d4e80f2 JA |
862 | if (!f->lock || td->o.file_lock_mode == FILE_LOCK_NONE) |
863 | return; | |
864 | if (f->lock_batch) | |
865 | return; | |
866 | ||
867 | if (td->o.file_lock_mode == FILE_LOCK_READWRITE) { | |
868 | const int is_read = f->lock_ddir == DDIR_READ; | |
869 | int val = fio_mutex_getval(f->lock); | |
29c1349f | 870 | |
4d4e80f2 JA |
871 | if ((is_read && val == 1) || (!is_read && val == -1)) |
872 | f->lock_owner = NULL; | |
29c1349f | 873 | |
4d4e80f2 JA |
874 | if (is_read) |
875 | fio_mutex_up_read(f->lock); | |
876 | else | |
877 | fio_mutex_up_write(f->lock); | |
878 | } else if (td->o.file_lock_mode == FILE_LOCK_EXCLUSIVE) { | |
879 | int val = fio_mutex_getval(f->lock); | |
880 | ||
881 | if (val == 0) | |
882 | f->lock_owner = NULL; | |
883 | ||
884 | fio_mutex_up(f->lock); | |
29c1349f | 885 | } |
b2bd2bd9 JA |
886 | } |
887 | ||
4d4e80f2 JA |
888 | void unlock_file_all(struct thread_data *td, struct fio_file *f) |
889 | { | |
890 | if (f->lock_owner != td) | |
891 | return; | |
892 | ||
893 | f->lock_batch = 0; | |
894 | unlock_file(td, f); | |
895 | } | |
896 | ||
bbf6b540 JA |
897 | static int recurse_dir(struct thread_data *td, const char *dirname) |
898 | { | |
899 | struct dirent *dir; | |
900 | int ret = 0; | |
901 | DIR *D; | |
902 | ||
903 | D = opendir(dirname); | |
904 | if (!D) { | |
0ddb270c JA |
905 | char buf[FIO_VERROR_SIZE]; |
906 | ||
907 | snprintf(buf, FIO_VERROR_SIZE - 1, "opendir(%s)", dirname); | |
908 | td_verror(td, errno, buf); | |
bbf6b540 JA |
909 | return 1; |
910 | } | |
911 | ||
912 | while ((dir = readdir(D)) != NULL) { | |
913 | char full_path[PATH_MAX]; | |
914 | struct stat sb; | |
915 | ||
e85b2b83 JA |
916 | if (!strcmp(dir->d_name, ".") || !strcmp(dir->d_name, "..")) |
917 | continue; | |
96d32d51 | 918 | |
bbf6b540 JA |
919 | sprintf(full_path, "%s/%s", dirname, dir->d_name); |
920 | ||
921 | if (lstat(full_path, &sb) == -1) { | |
922 | if (errno != ENOENT) { | |
923 | td_verror(td, errno, "stat"); | |
924 | return 1; | |
925 | } | |
926 | } | |
927 | ||
928 | if (S_ISREG(sb.st_mode)) { | |
929 | add_file(td, full_path); | |
2dc1bbeb | 930 | td->o.nr_files++; |
bbf6b540 JA |
931 | continue; |
932 | } | |
0ddb270c JA |
933 | if (!S_ISDIR(sb.st_mode)) |
934 | continue; | |
bbf6b540 | 935 | |
5ec10eaa JA |
936 | ret = recurse_dir(td, full_path); |
937 | if (ret) | |
bbf6b540 JA |
938 | break; |
939 | } | |
940 | ||
941 | closedir(D); | |
942 | return ret; | |
943 | } | |
944 | ||
945 | int add_dir_files(struct thread_data *td, const char *path) | |
946 | { | |
0ddb270c JA |
947 | int ret = recurse_dir(td, path); |
948 | ||
949 | if (!ret) | |
950 | log_info("fio: opendir added %d files\n", td->o.nr_files); | |
951 | ||
952 | return ret; | |
bbf6b540 | 953 | } |
cade3ef4 JA |
954 | |
955 | void dup_files(struct thread_data *td, struct thread_data *org) | |
956 | { | |
957 | struct fio_file *f; | |
958 | unsigned int i; | |
9efef3c4 JA |
959 | |
960 | dprint(FD_FILE, "dup files: %d\n", org->files_index); | |
cade3ef4 JA |
961 | |
962 | if (!org->files) | |
963 | return; | |
964 | ||
9efef3c4 | 965 | td->files = malloc(org->files_index * sizeof(f)); |
cade3ef4 | 966 | |
9efef3c4 | 967 | for_each_file(org, f, i) { |
b0fe421a JA |
968 | struct fio_file *__f; |
969 | ||
f17c4392 | 970 | __f = smalloc(sizeof(*__f)); |
c48c0be7 JA |
971 | if (!__f) { |
972 | log_err("fio: smalloc OOM\n"); | |
973 | assert(0); | |
974 | } | |
975 | ||
bc3456fa | 976 | if (f->file_name) { |
f17c4392 | 977 | __f->file_name = smalloc_strdup(f->file_name); |
c48c0be7 JA |
978 | if (!__f->file_name) { |
979 | log_err("fio: smalloc OOM\n"); | |
980 | assert(0); | |
981 | } | |
982 | ||
bc3456fa AC |
983 | __f->filetype = f->filetype; |
984 | } | |
b0fe421a JA |
985 | |
986 | td->files[i] = __f; | |
cade3ef4 JA |
987 | } |
988 | } | |
f29b25a3 JA |
989 | |
990 | /* | |
991 | * Returns the index that matches the filename, or -1 if not there | |
992 | */ | |
993 | int get_fileno(struct thread_data *td, const char *fname) | |
994 | { | |
995 | struct fio_file *f; | |
996 | unsigned int i; | |
997 | ||
998 | for_each_file(td, f, i) | |
999 | if (!strcmp(f->file_name, fname)) | |
1000 | return i; | |
1001 | ||
1002 | return -1; | |
1003 | } | |
1004 | ||
1005 | /* | |
1006 | * For log usage, where we add/open/close files automatically | |
1007 | */ | |
1008 | void free_release_files(struct thread_data *td) | |
1009 | { | |
1010 | close_files(td); | |
1011 | td->files_index = 0; | |
1012 | td->nr_normal_files = 0; | |
1013 | } |