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 | ||
7bb48f84 | 122 | static unsigned long long get_rand_file_size(struct thread_data *td) |
9c60ce64 | 123 | { |
dc873b6f | 124 | unsigned long long ret, sized; |
9c60ce64 JA |
125 | long r; |
126 | ||
9c60ce64 | 127 | r = os_random_long(&td->file_size_state); |
dc873b6f JA |
128 | sized = td->o.file_size_high - td->o.file_size_low; |
129 | ret = (unsigned long long) ((double) sized * (r / (OS_RAND_MAX + 1.0))); | |
5ec10eaa | 130 | ret += td->o.file_size_low; |
2dc1bbeb | 131 | ret -= (ret % td->o.rw_min_bs); |
9c60ce64 JA |
132 | return ret; |
133 | } | |
134 | ||
53cdc686 JA |
135 | static int file_size(struct thread_data *td, struct fio_file *f) |
136 | { | |
137 | struct stat st; | |
138 | ||
7bb48f84 JA |
139 | if (fstat(f->fd, &st) == -1) { |
140 | td_verror(td, errno, "fstat"); | |
141 | return 1; | |
142 | } | |
53cdc686 | 143 | |
7bb48f84 | 144 | f->real_file_size = st.st_size; |
53cdc686 JA |
145 | return 0; |
146 | } | |
147 | ||
148 | static int bdev_size(struct thread_data *td, struct fio_file *f) | |
149 | { | |
150 | unsigned long long bytes; | |
151 | int r; | |
152 | ||
153 | r = blockdev_size(f->fd, &bytes); | |
154 | if (r) { | |
e1161c32 | 155 | td_verror(td, r, "blockdev_size"); |
53cdc686 JA |
156 | return 1; |
157 | } | |
158 | ||
159 | f->real_file_size = bytes; | |
53cdc686 JA |
160 | return 0; |
161 | } | |
162 | ||
163 | static int get_file_size(struct thread_data *td, struct fio_file *f) | |
164 | { | |
165 | int ret = 0; | |
166 | ||
409b3417 JA |
167 | if (f->flags & FIO_SIZE_KNOWN) |
168 | return 0; | |
169 | ||
7bb48f84 JA |
170 | if (f->filetype == FIO_TYPE_FILE) |
171 | ret = file_size(td, f); | |
172 | else if (f->filetype == FIO_TYPE_BD) | |
53cdc686 JA |
173 | ret = bdev_size(td, f); |
174 | else | |
175 | f->real_file_size = -1; | |
176 | ||
177 | if (ret) | |
178 | return ret; | |
179 | ||
180 | if (f->file_offset > f->real_file_size) { | |
5ec10eaa JA |
181 | log_err("%s: offset extends end (%Lu > %Lu)\n", td->o.name, |
182 | f->file_offset, f->real_file_size); | |
53cdc686 JA |
183 | return 1; |
184 | } | |
185 | ||
409b3417 | 186 | f->flags |= FIO_SIZE_KNOWN; |
53cdc686 JA |
187 | return 0; |
188 | } | |
189 | ||
3baddf24 JA |
190 | static int __file_invalidate_cache(struct thread_data *td, struct fio_file *f, |
191 | unsigned long long off, | |
192 | unsigned long long len) | |
e5b401d4 JA |
193 | { |
194 | int ret = 0; | |
195 | ||
3baddf24 JA |
196 | if (len == -1ULL) |
197 | len = f->io_size; | |
198 | if (off == -1ULL) | |
199 | off = f->file_offset; | |
ee56ad50 | 200 | |
3baddf24 JA |
201 | dprint(FD_IO, "invalidate cache %s: %llu/%llu\n", f->file_name, off, |
202 | len); | |
b5af8293 | 203 | |
e5b401d4 JA |
204 | /* |
205 | * FIXME: add blockdev flushing too | |
206 | */ | |
b5af8293 | 207 | if (f->mmap) |
3baddf24 | 208 | ret = madvise(f->mmap, len, MADV_DONTNEED); |
5ec10eaa | 209 | else if (f->filetype == FIO_TYPE_FILE) { |
3baddf24 | 210 | ret = fadvise(f->fd, off, len, POSIX_FADV_DONTNEED); |
5ec10eaa | 211 | } else if (f->filetype == FIO_TYPE_BD) { |
b5af8293 | 212 | ret = blockdev_invalidate_cache(f->fd); |
7e0e25c9 | 213 | if (ret < 0 && errno == EACCES && geteuid()) { |
7172cfe8 | 214 | if (!root_warn) { |
5ec10eaa JA |
215 | log_err("fio: only root may flush block " |
216 | "devices. Cache flush bypassed!\n"); | |
7172cfe8 JA |
217 | root_warn = 1; |
218 | } | |
7e0e25c9 JA |
219 | ret = 0; |
220 | } | |
b5605e9d | 221 | } else if (f->filetype == FIO_TYPE_CHAR || f->filetype == FIO_TYPE_PIPE) |
e5b401d4 JA |
222 | ret = 0; |
223 | ||
224 | if (ret < 0) { | |
e1161c32 | 225 | td_verror(td, errno, "invalidate_cache"); |
e5b401d4 | 226 | return 1; |
3baddf24 JA |
227 | } else if (ret > 0) { |
228 | td_verror(td, ret, "invalidate_cache"); | |
229 | return 1; | |
e5b401d4 JA |
230 | } |
231 | ||
ad2da605 | 232 | return ret; |
3baddf24 JA |
233 | |
234 | } | |
235 | ||
236 | int file_invalidate_cache(struct thread_data *td, struct fio_file *f) | |
237 | { | |
a5fb461f JA |
238 | if (!(f->flags & FIO_FILE_OPEN)) |
239 | return 0; | |
240 | ||
3baddf24 | 241 | return __file_invalidate_cache(td, f, -1, -1); |
e5b401d4 JA |
242 | } |
243 | ||
6977bcd0 | 244 | int generic_close_file(struct thread_data fio_unused *td, struct fio_file *f) |
53cdc686 | 245 | { |
6977bcd0 JA |
246 | int ret = 0; |
247 | ||
ee56ad50 | 248 | dprint(FD_FILE, "fd close %s\n", f->file_name); |
4906e0b5 JA |
249 | |
250 | remove_file_hash(f); | |
251 | ||
6977bcd0 JA |
252 | if (close(f->fd) < 0) |
253 | ret = errno; | |
254 | ||
b5af8293 | 255 | f->fd = -1; |
6977bcd0 | 256 | return ret; |
53cdc686 JA |
257 | } |
258 | ||
4d4e80f2 | 259 | static int file_lookup_open(struct fio_file *f, int flags) |
53cdc686 | 260 | { |
29c1349f | 261 | struct fio_file *__f; |
4d4e80f2 JA |
262 | int from_hash; |
263 | ||
264 | __f = lookup_file_hash(f->file_name); | |
265 | if (__f) { | |
9efef3c4 | 266 | dprint(FD_FILE, "found file in hash %s\n", f->file_name); |
4d4e80f2 JA |
267 | /* |
268 | * racy, need the __f->lock locked | |
269 | */ | |
270 | f->lock = __f->lock; | |
271 | f->lock_owner = __f->lock_owner; | |
272 | f->lock_batch = __f->lock_batch; | |
273 | f->lock_ddir = __f->lock_ddir; | |
4d4e80f2 JA |
274 | from_hash = 1; |
275 | } else { | |
9efef3c4 | 276 | dprint(FD_FILE, "file not found in hash %s\n", f->file_name); |
4d4e80f2 JA |
277 | from_hash = 0; |
278 | } | |
279 | ||
e8670ef8 | 280 | f->fd = open(f->file_name, flags, 0600); |
4d4e80f2 JA |
281 | return from_hash; |
282 | } | |
283 | ||
284 | int generic_open_file(struct thread_data *td, struct fio_file *f) | |
285 | { | |
66159828 | 286 | int is_std = 0; |
53cdc686 | 287 | int flags = 0; |
29c1349f | 288 | int from_hash = 0; |
53cdc686 | 289 | |
ee56ad50 JA |
290 | dprint(FD_FILE, "fd open %s\n", f->file_name); |
291 | ||
66159828 JA |
292 | if (!strcmp(f->file_name, "-")) { |
293 | if (td_rw(td)) { | |
294 | log_err("fio: can't read/write to stdin/out\n"); | |
295 | return 1; | |
296 | } | |
297 | is_std = 1; | |
ce98fa66 JA |
298 | |
299 | /* | |
300 | * move output logging to stderr, if we are writing to stdout | |
301 | */ | |
302 | if (td_write(td)) | |
303 | f_out = stderr; | |
66159828 JA |
304 | } |
305 | ||
2dc1bbeb | 306 | if (td->o.odirect) |
2fd233b7 | 307 | flags |= OS_O_DIRECT; |
2dc1bbeb | 308 | if (td->o.sync_io) |
2fd233b7 | 309 | flags |= O_SYNC; |
ad92396c | 310 | if (f->filetype != FIO_TYPE_FILE) |
5921e80c | 311 | flags |= FIO_O_NOATIME; |
53cdc686 | 312 | |
056f3459 | 313 | open_again: |
660a1cb5 | 314 | if (td_write(td)) { |
17308158 JA |
315 | if (!read_only) |
316 | flags |= O_RDWR; | |
53cdc686 | 317 | |
af52b345 | 318 | if (f->filetype == FIO_TYPE_FILE) |
2fd233b7 | 319 | flags |= O_CREAT; |
2fd233b7 | 320 | |
66159828 JA |
321 | if (is_std) |
322 | f->fd = dup(STDOUT_FILENO); | |
4d4e80f2 JA |
323 | else |
324 | from_hash = file_lookup_open(f, flags); | |
2fd233b7 | 325 | } else { |
4241ea8f | 326 | if (f->filetype == FIO_TYPE_CHAR && !read_only) |
2fd233b7 JA |
327 | flags |= O_RDWR; |
328 | else | |
329 | flags |= O_RDONLY; | |
330 | ||
66159828 JA |
331 | if (is_std) |
332 | f->fd = dup(STDIN_FILENO); | |
4d4e80f2 JA |
333 | else |
334 | from_hash = file_lookup_open(f, flags); | |
53cdc686 JA |
335 | } |
336 | ||
337 | if (f->fd == -1) { | |
e4e33258 | 338 | char buf[FIO_VERROR_SIZE]; |
e1161c32 JA |
339 | int __e = errno; |
340 | ||
5921e80c JA |
341 | if (errno == EPERM && (flags & FIO_O_NOATIME)) { |
342 | flags &= ~FIO_O_NOATIME; | |
056f3459 AC |
343 | goto open_again; |
344 | } | |
345 | ||
e8670ef8 | 346 | snprintf(buf, sizeof(buf) - 1, "open(%s)", f->file_name); |
e4e33258 JA |
347 | |
348 | td_verror(td, __e, buf); | |
53cdc686 JA |
349 | } |
350 | ||
b5af8293 JA |
351 | if (get_file_size(td, f)) |
352 | goto err; | |
353 | ||
29c1349f JA |
354 | if (!from_hash && f->fd != -1) { |
355 | if (add_file_hash(f)) { | |
356 | int ret; | |
357 | ||
358 | /* | |
359 | * OK to ignore, we haven't done anything with it | |
360 | */ | |
361 | ret = generic_close_file(td, f); | |
362 | goto open_again; | |
363 | } | |
364 | } | |
4906e0b5 | 365 | |
53cdc686 | 366 | return 0; |
b5af8293 JA |
367 | err: |
368 | close(f->fd); | |
369 | return 1; | |
370 | } | |
371 | ||
21972cde JA |
372 | int open_files(struct thread_data *td) |
373 | { | |
374 | struct fio_file *f; | |
af52b345 JA |
375 | unsigned int i; |
376 | int err = 0; | |
21972cde | 377 | |
ee56ad50 JA |
378 | dprint(FD_FILE, "open files\n"); |
379 | ||
21972cde | 380 | for_each_file(td, f, i) { |
b5af8293 | 381 | err = td_io_open_file(td, f); |
9bf27b45 JA |
382 | if (err) { |
383 | if (td->error == EMFILE) { | |
5ec10eaa JA |
384 | log_err("fio: limited open files to: %d\n", |
385 | td->nr_open_files); | |
9bf27b45 JA |
386 | td->o.open_files = td->nr_open_files; |
387 | err = 0; | |
388 | clear_error(td); | |
389 | } | |
21972cde | 390 | break; |
9bf27b45 | 391 | } |
b5af8293 | 392 | |
2dc1bbeb | 393 | if (td->o.open_files == td->nr_open_files) |
b5af8293 | 394 | break; |
21972cde JA |
395 | } |
396 | ||
7abf833d JA |
397 | if (!err) |
398 | return 0; | |
399 | ||
bdb4e2e9 | 400 | for_each_file(td, f, i) |
b5af8293 | 401 | td_io_close_file(td, f); |
7abf833d | 402 | |
21972cde JA |
403 | return err; |
404 | } | |
405 | ||
7bb48f84 JA |
406 | /* |
407 | * open/close all files, so that ->real_file_size gets set | |
408 | */ | |
bab3fd58 | 409 | static int get_file_sizes(struct thread_data *td) |
7bb48f84 JA |
410 | { |
411 | struct fio_file *f; | |
412 | unsigned int i; | |
bab3fd58 | 413 | int err = 0; |
7bb48f84 JA |
414 | |
415 | for_each_file(td, f, i) { | |
5ec10eaa JA |
416 | dprint(FD_FILE, "get file size for %p/%d/%p\n", f, i, |
417 | f->file_name); | |
9efef3c4 | 418 | |
bab3fd58 | 419 | if (td->io_ops->open_file(td, f)) { |
40b44f4a JA |
420 | if (td->error != ENOENT) { |
421 | log_err("%s\n", td->verror); | |
422 | err = 1; | |
423 | } | |
541d66d7 | 424 | clear_error(td); |
07eb79df JA |
425 | } else { |
426 | if (td->io_ops->close_file) | |
427 | td->io_ops->close_file(td, f); | |
428 | } | |
409b3417 JA |
429 | |
430 | if (f->real_file_size == -1ULL && td->o.size) | |
431 | f->real_file_size = td->o.size / td->o.nr_files; | |
7bb48f84 | 432 | } |
bab3fd58 JA |
433 | |
434 | return err; | |
7bb48f84 JA |
435 | } |
436 | ||
437 | /* | |
438 | * Open the files and setup files sizes, creating files if necessary. | |
439 | */ | |
53cdc686 JA |
440 | int setup_files(struct thread_data *td) |
441 | { | |
7bb48f84 | 442 | unsigned long long total_size, extend_size; |
53cdc686 | 443 | struct fio_file *f; |
af52b345 | 444 | unsigned int i; |
000b0803 | 445 | int err = 0, need_extend; |
53cdc686 | 446 | |
ee56ad50 JA |
447 | dprint(FD_FILE, "setup files\n"); |
448 | ||
691c8fb0 JA |
449 | if (td->o.read_iolog_file) |
450 | return 0; | |
451 | ||
53cdc686 JA |
452 | /* |
453 | * if ioengine defines a setup() method, it's responsible for | |
7bb48f84 JA |
454 | * opening the files and setting f->real_file_size to indicate |
455 | * the valid range for that file. | |
53cdc686 JA |
456 | */ |
457 | if (td->io_ops->setup) | |
7bb48f84 JA |
458 | err = td->io_ops->setup(td); |
459 | else | |
bab3fd58 | 460 | err = get_file_sizes(td); |
53cdc686 | 461 | |
f1027063 JA |
462 | if (err) |
463 | return err; | |
464 | ||
0a7eb121 | 465 | /* |
7bb48f84 JA |
466 | * check sizes. if the files/devices do not exist and the size |
467 | * isn't passed to fio, abort. | |
0a7eb121 | 468 | */ |
7bb48f84 JA |
469 | total_size = 0; |
470 | for_each_file(td, f, i) { | |
471 | if (f->real_file_size == -1ULL) | |
472 | total_size = -1ULL; | |
473 | else | |
474 | total_size += f->real_file_size; | |
475 | } | |
0a7eb121 | 476 | |
7bb48f84 JA |
477 | /* |
478 | * device/file sizes are zero and no size given, punt | |
479 | */ | |
1f809d15 | 480 | if ((!total_size || total_size == -1ULL) && !td->o.size && |
aa31f1f1 | 481 | !(td->io_ops->flags & FIO_NOIO) && !td->o.fill_device) { |
7bb48f84 | 482 | log_err("%s: you need to specify size=\n", td->o.name); |
e1161c32 | 483 | td_verror(td, EINVAL, "total_file_size"); |
53cdc686 JA |
484 | return 1; |
485 | } | |
486 | ||
7bb48f84 JA |
487 | /* |
488 | * now file sizes are known, so we can set ->io_size. if size= is | |
489 | * not given, ->io_size is just equal to ->real_file_size. if size | |
490 | * is given, ->io_size is size / nr_files. | |
491 | */ | |
492 | extend_size = total_size = 0; | |
493 | need_extend = 0; | |
494 | for_each_file(td, f, i) { | |
bcdedd0a YHJT |
495 | f->file_offset = td->o.start_offset; |
496 | ||
7bb48f84 JA |
497 | if (!td->o.file_size_low) { |
498 | /* | |
499 | * no file size range given, file size is equal to | |
500 | * total size divided by number of files. if that is | |
501 | * zero, set it to the real file size. | |
502 | */ | |
503 | f->io_size = td->o.size / td->o.nr_files; | |
65bdb10a | 504 | if (!f->io_size) |
273f8c91 | 505 | f->io_size = f->real_file_size - f->file_offset; |
7bb48f84 JA |
506 | } else if (f->real_file_size < td->o.file_size_low || |
507 | f->real_file_size > td->o.file_size_high) { | |
5ec10eaa | 508 | if (f->file_offset > td->o.file_size_low) |
bcdedd0a | 509 | goto err_offset; |
7bb48f84 JA |
510 | /* |
511 | * file size given. if it's fixed, use that. if it's a | |
512 | * range, generate a random size in-between. | |
513 | */ | |
5ec10eaa JA |
514 | if (td->o.file_size_low == td->o.file_size_high) { |
515 | f->io_size = td->o.file_size_low | |
516 | - f->file_offset; | |
517 | } else { | |
518 | f->io_size = get_rand_file_size(td) | |
519 | - f->file_offset; | |
520 | } | |
65bdb10a | 521 | } else |
bcdedd0a | 522 | f->io_size = f->real_file_size - f->file_offset; |
53cdc686 | 523 | |
7bb48f84 JA |
524 | if (f->io_size == -1ULL) |
525 | total_size = -1ULL; | |
526 | else | |
527 | total_size += f->io_size; | |
528 | ||
529 | if (f->filetype == FIO_TYPE_FILE && | |
bcdedd0a | 530 | (f->io_size + f->file_offset) > f->real_file_size && |
7bb48f84 JA |
531 | !(td->io_ops->flags & FIO_DISKLESSIO)) { |
532 | need_extend++; | |
bcdedd0a | 533 | extend_size += (f->io_size + f->file_offset); |
7bb48f84 | 534 | f->flags |= FIO_FILE_EXTEND; |
5ec10eaa | 535 | } |
7bb48f84 | 536 | } |
53cdc686 | 537 | |
2298290e | 538 | if (!td->o.size || td->o.size > total_size) |
7bb48f84 | 539 | td->o.size = total_size; |
21972cde | 540 | |
7bb48f84 JA |
541 | /* |
542 | * See if we need to extend some files | |
543 | */ | |
544 | if (need_extend) { | |
545 | temp_stall_ts = 1; | |
a7ba8c5f SSY |
546 | if (!terse_output) |
547 | log_info("%s: Laying out IO file(s) (%u file(s) /" | |
548 | " %LuMiB)\n", td->o.name, need_extend, | |
549 | extend_size >> 20); | |
7bb48f84 JA |
550 | |
551 | for_each_file(td, f, i) { | |
3baddf24 JA |
552 | unsigned long long old_len, extend_len; |
553 | ||
7bb48f84 JA |
554 | if (!(f->flags & FIO_FILE_EXTEND)) |
555 | continue; | |
556 | ||
409b3417 | 557 | assert(f->filetype == FIO_TYPE_FILE); |
7bb48f84 | 558 | f->flags &= ~FIO_FILE_EXTEND; |
3baddf24 JA |
559 | old_len = f->real_file_size; |
560 | extend_len = f->io_size + f->file_offset - old_len; | |
bcdedd0a | 561 | f->real_file_size = (f->io_size + f->file_offset); |
7bb48f84 JA |
562 | err = extend_file(td, f); |
563 | if (err) | |
3baddf24 JA |
564 | break; |
565 | ||
566 | err = __file_invalidate_cache(td, f, old_len, | |
567 | extend_len); | |
568 | close(f->fd); | |
569 | f->fd = -1; | |
570 | if (err) | |
7bb48f84 JA |
571 | break; |
572 | } | |
573 | temp_stall_ts = 0; | |
574 | } | |
575 | ||
576 | if (err) | |
577 | return err; | |
578 | ||
579 | if (!td->o.zone_size) | |
580 | td->o.zone_size = td->o.size; | |
581 | ||
ea966f81 JA |
582 | /* |
583 | * iolog already set the total io size, if we read back | |
584 | * stored entries. | |
585 | */ | |
586 | if (!td->o.read_iolog_file) | |
587 | td->total_io_size = td->o.size * td->o.loops; | |
7bb48f84 | 588 | return 0; |
bcdedd0a YHJT |
589 | err_offset: |
590 | log_err("%s: you need to specify valid offset=\n", td->o.name); | |
591 | return 1; | |
53cdc686 JA |
592 | } |
593 | ||
68727076 JA |
594 | int init_random_map(struct thread_data *td) |
595 | { | |
509eab12 | 596 | unsigned long long blocks, num_maps; |
68727076 JA |
597 | struct fio_file *f; |
598 | unsigned int i; | |
599 | ||
de8dd119 | 600 | if (td->o.norandommap || !td_random(td)) |
68727076 JA |
601 | return 0; |
602 | ||
603 | for_each_file(td, f, i) { | |
5ec10eaa JA |
604 | blocks = (f->real_file_size + td->o.rw_min_bs - 1) / |
605 | (unsigned long long) td->o.rw_min_bs; | |
606 | num_maps = (blocks + BLOCKS_PER_MAP - 1) / | |
607 | (unsigned long long) BLOCKS_PER_MAP; | |
de605666 | 608 | f->file_map = smalloc(num_maps * sizeof(int)); |
303032ae JA |
609 | if (f->file_map) { |
610 | f->num_maps = num_maps; | |
611 | continue; | |
68727076 | 612 | } |
2b386d25 | 613 | if (!td->o.softrandommap) { |
5ec10eaa JA |
614 | log_err("fio: failed allocating random map. If running" |
615 | " a large number of jobs, try the 'norandommap'" | |
2b386d25 JA |
616 | " option or set 'softrandommap'. Or give" |
617 | " a larger --alloc-size to fio.\n"); | |
68727076 JA |
618 | return 1; |
619 | } | |
303032ae JA |
620 | |
621 | log_info("fio: file %s failed allocating random map. Running " | |
622 | "job without.\n", f->file_name); | |
623 | f->num_maps = 0; | |
68727076 JA |
624 | } |
625 | ||
626 | return 0; | |
627 | } | |
628 | ||
53cdc686 JA |
629 | void close_files(struct thread_data *td) |
630 | { | |
0ab8db89 | 631 | struct fio_file *f; |
af52b345 | 632 | unsigned int i; |
53cdc686 | 633 | |
24ffd2c2 JA |
634 | for_each_file(td, f, i) |
635 | td_io_close_file(td, f); | |
636 | } | |
637 | ||
638 | void close_and_free_files(struct thread_data *td) | |
639 | { | |
640 | struct fio_file *f; | |
641 | unsigned int i; | |
642 | ||
ee56ad50 JA |
643 | dprint(FD_FILE, "close files\n"); |
644 | ||
0ab8db89 | 645 | for_each_file(td, f, i) { |
ffdfabd4 JA |
646 | if (td->o.unlink && f->filetype == FIO_TYPE_FILE) { |
647 | dprint(FD_FILE, "free unlink %s\n", f->file_name); | |
132ad46d | 648 | unlink(f->file_name); |
ffdfabd4 | 649 | } |
bdb4e2e9 | 650 | |
b5af8293 | 651 | td_io_close_file(td, f); |
b9fbcf21 | 652 | remove_file_hash(f); |
b3dc7f07 | 653 | |
f17c4392 | 654 | sfree(f->file_name); |
fa1da865 JA |
655 | f->file_name = NULL; |
656 | ||
c343981b | 657 | if (f->file_map) { |
f17c4392 | 658 | sfree(f->file_map); |
c343981b JA |
659 | f->file_map = NULL; |
660 | } | |
78d99e6a | 661 | sfree(f); |
53cdc686 | 662 | } |
b4a6a59a | 663 | |
2dc1bbeb | 664 | td->o.filename = NULL; |
cade3ef4 | 665 | free(td->files); |
9efef3c4 | 666 | td->files_index = 0; |
b4a6a59a | 667 | td->files = NULL; |
2dc1bbeb | 668 | td->o.nr_files = 0; |
53cdc686 | 669 | } |
af52b345 | 670 | |
e3bab463 | 671 | static void get_file_type(struct fio_file *f) |
af52b345 JA |
672 | { |
673 | struct stat sb; | |
674 | ||
66159828 JA |
675 | if (!strcmp(f->file_name, "-")) |
676 | f->filetype = FIO_TYPE_PIPE; | |
677 | else | |
678 | f->filetype = FIO_TYPE_FILE; | |
af52b345 | 679 | |
e3bab463 | 680 | if (!lstat(f->file_name, &sb)) { |
af52b345 JA |
681 | if (S_ISBLK(sb.st_mode)) |
682 | f->filetype = FIO_TYPE_BD; | |
683 | else if (S_ISCHR(sb.st_mode)) | |
684 | f->filetype = FIO_TYPE_CHAR; | |
b5605e9d JA |
685 | else if (S_ISFIFO(sb.st_mode)) |
686 | f->filetype = FIO_TYPE_PIPE; | |
af52b345 JA |
687 | } |
688 | } | |
689 | ||
f29b25a3 | 690 | int add_file(struct thread_data *td, const char *fname) |
af52b345 | 691 | { |
7b4e4fe5 | 692 | int cur_files = td->files_index; |
bd0ee748 | 693 | char file_name[PATH_MAX]; |
af52b345 | 694 | struct fio_file *f; |
bd0ee748 | 695 | int len = 0; |
af52b345 | 696 | |
ee56ad50 JA |
697 | dprint(FD_FILE, "add file %s\n", fname); |
698 | ||
f17c4392 | 699 | f = smalloc(sizeof(*f)); |
c48c0be7 JA |
700 | if (!f) { |
701 | log_err("fio: smalloc OOM\n"); | |
702 | assert(0); | |
703 | } | |
704 | ||
af52b345 | 705 | f->fd = -1; |
bd0ee748 | 706 | |
9efef3c4 | 707 | dprint(FD_FILE, "resize file array to %d files\n", cur_files + 1); |
126d65c6 | 708 | |
9efef3c4 | 709 | td->files = realloc(td->files, (cur_files + 1) * sizeof(f)); |
126d65c6 JA |
710 | td->files[cur_files] = f; |
711 | ||
07eb79df JA |
712 | /* |
713 | * init function, io engine may not be loaded yet | |
714 | */ | |
715 | if (td->io_ops && (td->io_ops->flags & FIO_DISKLESSIO)) | |
716 | f->real_file_size = -1ULL; | |
717 | ||
bd0ee748 JA |
718 | if (td->o.directory) |
719 | len = sprintf(file_name, "%s/", td->o.directory); | |
720 | ||
721 | sprintf(file_name + len, "%s", fname); | |
f17c4392 | 722 | f->file_name = smalloc_strdup(file_name); |
c48c0be7 JA |
723 | if (!f->file_name) { |
724 | log_err("fio: smalloc OOM\n"); | |
725 | assert(0); | |
726 | } | |
727 | ||
e3bab463 | 728 | get_file_type(f); |
af52b345 | 729 | |
4d4e80f2 JA |
730 | switch (td->o.file_lock_mode) { |
731 | case FILE_LOCK_NONE: | |
732 | break; | |
733 | case FILE_LOCK_READWRITE: | |
734 | f->lock = fio_mutex_rw_init(); | |
735 | break; | |
736 | case FILE_LOCK_EXCLUSIVE: | |
737 | f->lock = fio_mutex_init(1); | |
738 | break; | |
739 | default: | |
740 | log_err("fio: unknown lock mode: %d\n", td->o.file_lock_mode); | |
741 | assert(0); | |
742 | } | |
29c1349f | 743 | |
7b4e4fe5 | 744 | td->files_index++; |
1549441c JA |
745 | if (f->filetype == FIO_TYPE_FILE) |
746 | td->nr_normal_files++; | |
f29b25a3 | 747 | |
5ec10eaa JA |
748 | dprint(FD_FILE, "file %p \"%s\" added at %d\n", f, f->file_name, |
749 | cur_files); | |
9efef3c4 | 750 | |
f29b25a3 | 751 | return cur_files; |
af52b345 | 752 | } |
0ad920e7 JA |
753 | |
754 | void get_file(struct fio_file *f) | |
755 | { | |
8172fe97 | 756 | dprint(FD_FILE, "get file %s, ref=%d\n", f->file_name, f->references); |
97af62ce | 757 | assert(f->flags & FIO_FILE_OPEN); |
0ad920e7 JA |
758 | f->references++; |
759 | } | |
760 | ||
6977bcd0 | 761 | int put_file(struct thread_data *td, struct fio_file *f) |
0ad920e7 | 762 | { |
98e1ac4e | 763 | int f_ret = 0, ret = 0; |
6977bcd0 | 764 | |
8172fe97 | 765 | dprint(FD_FILE, "put file %s, ref=%d\n", f->file_name, f->references); |
ee56ad50 | 766 | |
0ad920e7 | 767 | if (!(f->flags & FIO_FILE_OPEN)) |
6977bcd0 | 768 | return 0; |
0ad920e7 JA |
769 | |
770 | assert(f->references); | |
771 | if (--f->references) | |
6977bcd0 | 772 | return 0; |
0ad920e7 | 773 | |
d424d4dd | 774 | if (should_fsync(td) && td->o.fsync_on_close) |
98e1ac4e | 775 | f_ret = fsync(f->fd); |
ebb1415f | 776 | |
0ad920e7 | 777 | if (td->io_ops->close_file) |
6977bcd0 | 778 | ret = td->io_ops->close_file(td, f); |
1020a139 | 779 | |
98e1ac4e | 780 | if (!ret) |
a5fb461f | 781 | ret = f_ret; |
98e1ac4e | 782 | |
0ad920e7 JA |
783 | td->nr_open_files--; |
784 | f->flags &= ~FIO_FILE_OPEN; | |
6977bcd0 | 785 | return ret; |
0ad920e7 | 786 | } |
bbf6b540 | 787 | |
4d4e80f2 | 788 | void lock_file(struct thread_data *td, struct fio_file *f, enum fio_ddir ddir) |
b2bd2bd9 | 789 | { |
4d4e80f2 JA |
790 | if (!f->lock || td->o.file_lock_mode == FILE_LOCK_NONE) |
791 | return; | |
29c1349f | 792 | |
4d4e80f2 JA |
793 | if (f->lock_owner == td && f->lock_batch--) |
794 | return; | |
795 | ||
796 | if (td->o.file_lock_mode == FILE_LOCK_READWRITE) { | |
797 | if (ddir == DDIR_READ) | |
798 | fio_mutex_down_read(f->lock); | |
799 | else | |
800 | fio_mutex_down_write(f->lock); | |
801 | } else if (td->o.file_lock_mode == FILE_LOCK_EXCLUSIVE) | |
802 | fio_mutex_down(f->lock); | |
803 | ||
804 | f->lock_owner = td; | |
805 | f->lock_batch = td->o.lockfile_batch; | |
806 | f->lock_ddir = ddir; | |
b2bd2bd9 JA |
807 | } |
808 | ||
4d4e80f2 | 809 | void unlock_file(struct thread_data *td, struct fio_file *f) |
b2bd2bd9 | 810 | { |
4d4e80f2 JA |
811 | if (!f->lock || td->o.file_lock_mode == FILE_LOCK_NONE) |
812 | return; | |
813 | if (f->lock_batch) | |
814 | return; | |
815 | ||
816 | if (td->o.file_lock_mode == FILE_LOCK_READWRITE) { | |
817 | const int is_read = f->lock_ddir == DDIR_READ; | |
818 | int val = fio_mutex_getval(f->lock); | |
29c1349f | 819 | |
4d4e80f2 JA |
820 | if ((is_read && val == 1) || (!is_read && val == -1)) |
821 | f->lock_owner = NULL; | |
29c1349f | 822 | |
4d4e80f2 JA |
823 | if (is_read) |
824 | fio_mutex_up_read(f->lock); | |
825 | else | |
826 | fio_mutex_up_write(f->lock); | |
827 | } else if (td->o.file_lock_mode == FILE_LOCK_EXCLUSIVE) { | |
828 | int val = fio_mutex_getval(f->lock); | |
829 | ||
830 | if (val == 0) | |
831 | f->lock_owner = NULL; | |
832 | ||
833 | fio_mutex_up(f->lock); | |
29c1349f | 834 | } |
b2bd2bd9 JA |
835 | } |
836 | ||
4d4e80f2 JA |
837 | void unlock_file_all(struct thread_data *td, struct fio_file *f) |
838 | { | |
839 | if (f->lock_owner != td) | |
840 | return; | |
841 | ||
842 | f->lock_batch = 0; | |
843 | unlock_file(td, f); | |
844 | } | |
845 | ||
bbf6b540 JA |
846 | static int recurse_dir(struct thread_data *td, const char *dirname) |
847 | { | |
848 | struct dirent *dir; | |
849 | int ret = 0; | |
850 | DIR *D; | |
851 | ||
852 | D = opendir(dirname); | |
853 | if (!D) { | |
0ddb270c JA |
854 | char buf[FIO_VERROR_SIZE]; |
855 | ||
856 | snprintf(buf, FIO_VERROR_SIZE - 1, "opendir(%s)", dirname); | |
857 | td_verror(td, errno, buf); | |
bbf6b540 JA |
858 | return 1; |
859 | } | |
860 | ||
861 | while ((dir = readdir(D)) != NULL) { | |
862 | char full_path[PATH_MAX]; | |
863 | struct stat sb; | |
864 | ||
e85b2b83 JA |
865 | if (!strcmp(dir->d_name, ".") || !strcmp(dir->d_name, "..")) |
866 | continue; | |
96d32d51 | 867 | |
bbf6b540 JA |
868 | sprintf(full_path, "%s/%s", dirname, dir->d_name); |
869 | ||
870 | if (lstat(full_path, &sb) == -1) { | |
871 | if (errno != ENOENT) { | |
872 | td_verror(td, errno, "stat"); | |
873 | return 1; | |
874 | } | |
875 | } | |
876 | ||
877 | if (S_ISREG(sb.st_mode)) { | |
878 | add_file(td, full_path); | |
2dc1bbeb | 879 | td->o.nr_files++; |
bbf6b540 JA |
880 | continue; |
881 | } | |
0ddb270c JA |
882 | if (!S_ISDIR(sb.st_mode)) |
883 | continue; | |
bbf6b540 | 884 | |
5ec10eaa JA |
885 | ret = recurse_dir(td, full_path); |
886 | if (ret) | |
bbf6b540 JA |
887 | break; |
888 | } | |
889 | ||
890 | closedir(D); | |
891 | return ret; | |
892 | } | |
893 | ||
894 | int add_dir_files(struct thread_data *td, const char *path) | |
895 | { | |
0ddb270c JA |
896 | int ret = recurse_dir(td, path); |
897 | ||
898 | if (!ret) | |
899 | log_info("fio: opendir added %d files\n", td->o.nr_files); | |
900 | ||
901 | return ret; | |
bbf6b540 | 902 | } |
cade3ef4 JA |
903 | |
904 | void dup_files(struct thread_data *td, struct thread_data *org) | |
905 | { | |
906 | struct fio_file *f; | |
907 | unsigned int i; | |
9efef3c4 JA |
908 | |
909 | dprint(FD_FILE, "dup files: %d\n", org->files_index); | |
cade3ef4 JA |
910 | |
911 | if (!org->files) | |
912 | return; | |
913 | ||
9efef3c4 | 914 | td->files = malloc(org->files_index * sizeof(f)); |
cade3ef4 | 915 | |
9efef3c4 | 916 | for_each_file(org, f, i) { |
b0fe421a JA |
917 | struct fio_file *__f; |
918 | ||
f17c4392 | 919 | __f = smalloc(sizeof(*__f)); |
c48c0be7 JA |
920 | if (!__f) { |
921 | log_err("fio: smalloc OOM\n"); | |
922 | assert(0); | |
923 | } | |
924 | ||
bc3456fa | 925 | if (f->file_name) { |
f17c4392 | 926 | __f->file_name = smalloc_strdup(f->file_name); |
c48c0be7 JA |
927 | if (!__f->file_name) { |
928 | log_err("fio: smalloc OOM\n"); | |
929 | assert(0); | |
930 | } | |
931 | ||
bc3456fa AC |
932 | __f->filetype = f->filetype; |
933 | } | |
b0fe421a JA |
934 | |
935 | td->files[i] = __f; | |
cade3ef4 JA |
936 | } |
937 | } | |
f29b25a3 JA |
938 | |
939 | /* | |
940 | * Returns the index that matches the filename, or -1 if not there | |
941 | */ | |
942 | int get_fileno(struct thread_data *td, const char *fname) | |
943 | { | |
944 | struct fio_file *f; | |
945 | unsigned int i; | |
946 | ||
947 | for_each_file(td, f, i) | |
948 | if (!strcmp(f->file_name, fname)) | |
949 | return i; | |
950 | ||
951 | return -1; | |
952 | } | |
953 | ||
954 | /* | |
955 | * For log usage, where we add/open/close files automatically | |
956 | */ | |
957 | void free_release_files(struct thread_data *td) | |
958 | { | |
959 | close_files(td); | |
960 | td->files_index = 0; | |
961 | td->nr_normal_files = 0; | |
962 | } |