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 | ||
7bb48f84 | 16 | static int extend_file(struct thread_data *td, struct fio_file *f) |
25205e97 | 17 | { |
ea443657 | 18 | int r, new_layout = 0, unlink_file = 0, flags; |
25205e97 JA |
19 | unsigned long long left; |
20 | unsigned int bs; | |
21 | char *b; | |
b2a15192 | 22 | |
4241ea8f JA |
23 | if (read_only) { |
24 | log_err("fio: refusing extend of file due to read-only\n"); | |
25 | return 0; | |
26 | } | |
27 | ||
507a702f JA |
28 | /* |
29 | * check if we need to lay the file out complete again. fio | |
30 | * does that for operations involving reads, or for writes | |
31 | * where overwrite is set | |
32 | */ | |
33 | if (td_read(td) || (td_write(td) && td->o.overwrite)) | |
34 | new_layout = 1; | |
ea443657 JA |
35 | if (td_write(td) && !td->o.overwrite) |
36 | unlink_file = 1; | |
507a702f | 37 | |
6ae1f57f | 38 | if (unlink_file || new_layout) { |
982016d6 | 39 | if ((unlink(f->file_name) < 0) && (errno != ENOENT)) { |
7bb48f84 JA |
40 | td_verror(td, errno, "unlink"); |
41 | return 1; | |
42 | } | |
43 | } | |
44 | ||
507a702f JA |
45 | flags = O_WRONLY | O_CREAT; |
46 | if (new_layout) | |
47 | flags |= O_TRUNC; | |
48 | ||
ee56ad50 | 49 | dprint(FD_FILE, "open file %s, flags %x\n", f->file_name, flags); |
507a702f | 50 | f->fd = open(f->file_name, flags, 0644); |
53cdc686 | 51 | if (f->fd < 0) { |
e1161c32 | 52 | td_verror(td, errno, "open"); |
53cdc686 JA |
53 | return 1; |
54 | } | |
55 | ||
fc74ac1d SL |
56 | if (!new_layout) |
57 | goto done; | |
58 | ||
ee56ad50 JA |
59 | dprint(FD_FILE, "truncate file %s, size %llu\n", f->file_name, |
60 | f->real_file_size); | |
7bb48f84 | 61 | if (ftruncate(f->fd, f->real_file_size) == -1) { |
e1161c32 | 62 | td_verror(td, errno, "ftruncate"); |
53cdc686 JA |
63 | goto err; |
64 | } | |
65 | ||
ee56ad50 JA |
66 | dprint(FD_FILE, "fallocate file %s, size %llu\n", f->file_name, |
67 | f->real_file_size); | |
7bb48f84 | 68 | if (posix_fallocate(f->fd, 0, f->real_file_size) < 0) { |
e1161c32 | 69 | td_verror(td, errno, "posix_fallocate"); |
40f8298c JA |
70 | goto err; |
71 | } | |
72 | ||
2dc1bbeb JA |
73 | b = malloc(td->o.max_bs[DDIR_WRITE]); |
74 | memset(b, 0, td->o.max_bs[DDIR_WRITE]); | |
53cdc686 | 75 | |
7bb48f84 | 76 | left = f->real_file_size; |
53cdc686 | 77 | while (left && !td->terminate) { |
2dc1bbeb | 78 | bs = td->o.max_bs[DDIR_WRITE]; |
53cdc686 JA |
79 | if (bs > left) |
80 | bs = left; | |
81 | ||
82 | r = write(f->fd, b, bs); | |
83 | ||
84 | if (r == (int) bs) { | |
85 | left -= bs; | |
86 | continue; | |
87 | } else { | |
88 | if (r < 0) | |
e1161c32 | 89 | td_verror(td, errno, "write"); |
53cdc686 | 90 | else |
e1161c32 | 91 | td_verror(td, EIO, "write"); |
53cdc686 JA |
92 | |
93 | break; | |
94 | } | |
95 | } | |
96 | ||
97 | if (td->terminate) | |
98 | unlink(f->file_name); | |
98e1ac4e JA |
99 | else if (td->o.create_fsync) { |
100 | if (fsync(f->fd) < 0) { | |
101 | td_verror(td, errno, "fsync"); | |
102 | goto err; | |
103 | } | |
104 | } | |
53cdc686 JA |
105 | |
106 | free(b); | |
507a702f | 107 | done: |
53cdc686 JA |
108 | close(f->fd); |
109 | f->fd = -1; | |
110 | return 0; | |
111 | err: | |
112 | close(f->fd); | |
113 | f->fd = -1; | |
114 | return 1; | |
115 | } | |
116 | ||
7bb48f84 | 117 | static unsigned long long get_rand_file_size(struct thread_data *td) |
9c60ce64 | 118 | { |
5ec10eaa | 119 | unsigned long long ret, size_d; |
9c60ce64 JA |
120 | long r; |
121 | ||
9c60ce64 | 122 | r = os_random_long(&td->file_size_state); |
5ec10eaa JA |
123 | size_d = td->o.file_size_high - td->o.file_size_low; |
124 | ret = (unsigned long long) ((double) size_d * (r / (RAND_MAX + 1.0))); | |
125 | ret += td->o.file_size_low; | |
2dc1bbeb | 126 | ret -= (ret % td->o.rw_min_bs); |
9c60ce64 JA |
127 | return ret; |
128 | } | |
129 | ||
53cdc686 JA |
130 | static int file_size(struct thread_data *td, struct fio_file *f) |
131 | { | |
132 | struct stat st; | |
133 | ||
7bb48f84 JA |
134 | if (fstat(f->fd, &st) == -1) { |
135 | td_verror(td, errno, "fstat"); | |
136 | return 1; | |
137 | } | |
53cdc686 | 138 | |
7bb48f84 | 139 | f->real_file_size = st.st_size; |
53cdc686 JA |
140 | return 0; |
141 | } | |
142 | ||
143 | static int bdev_size(struct thread_data *td, struct fio_file *f) | |
144 | { | |
145 | unsigned long long bytes; | |
146 | int r; | |
147 | ||
148 | r = blockdev_size(f->fd, &bytes); | |
149 | if (r) { | |
e1161c32 | 150 | td_verror(td, r, "blockdev_size"); |
53cdc686 JA |
151 | return 1; |
152 | } | |
153 | ||
154 | f->real_file_size = bytes; | |
53cdc686 JA |
155 | return 0; |
156 | } | |
157 | ||
158 | static int get_file_size(struct thread_data *td, struct fio_file *f) | |
159 | { | |
160 | int ret = 0; | |
161 | ||
409b3417 JA |
162 | if (f->flags & FIO_SIZE_KNOWN) |
163 | return 0; | |
164 | ||
7bb48f84 JA |
165 | if (f->filetype == FIO_TYPE_FILE) |
166 | ret = file_size(td, f); | |
167 | else if (f->filetype == FIO_TYPE_BD) | |
53cdc686 JA |
168 | ret = bdev_size(td, f); |
169 | else | |
170 | f->real_file_size = -1; | |
171 | ||
172 | if (ret) | |
173 | return ret; | |
174 | ||
175 | if (f->file_offset > f->real_file_size) { | |
5ec10eaa JA |
176 | log_err("%s: offset extends end (%Lu > %Lu)\n", td->o.name, |
177 | f->file_offset, f->real_file_size); | |
53cdc686 JA |
178 | return 1; |
179 | } | |
180 | ||
409b3417 | 181 | f->flags |= FIO_SIZE_KNOWN; |
53cdc686 JA |
182 | return 0; |
183 | } | |
184 | ||
e5b401d4 JA |
185 | int file_invalidate_cache(struct thread_data *td, struct fio_file *f) |
186 | { | |
187 | int ret = 0; | |
188 | ||
ee56ad50 JA |
189 | dprint(FD_IO, "invalidate cache (%d)\n", td->o.odirect); |
190 | ||
2dc1bbeb | 191 | if (td->o.odirect) |
b5af8293 JA |
192 | return 0; |
193 | ||
e5b401d4 JA |
194 | /* |
195 | * FIXME: add blockdev flushing too | |
196 | */ | |
b5af8293 | 197 | if (f->mmap) |
7bb48f84 | 198 | ret = madvise(f->mmap, f->io_size, MADV_DONTNEED); |
5ec10eaa JA |
199 | else if (f->filetype == FIO_TYPE_FILE) { |
200 | ret = fadvise(f->fd, f->file_offset, f->io_size, | |
201 | POSIX_FADV_DONTNEED); | |
202 | } else if (f->filetype == FIO_TYPE_BD) { | |
b5af8293 | 203 | ret = blockdev_invalidate_cache(f->fd); |
7e0e25c9 | 204 | if (ret < 0 && errno == EACCES && geteuid()) { |
7172cfe8 | 205 | if (!root_warn) { |
5ec10eaa JA |
206 | log_err("fio: only root may flush block " |
207 | "devices. Cache flush bypassed!\n"); | |
7172cfe8 JA |
208 | root_warn = 1; |
209 | } | |
7e0e25c9 JA |
210 | ret = 0; |
211 | } | |
b5605e9d | 212 | } else if (f->filetype == FIO_TYPE_CHAR || f->filetype == FIO_TYPE_PIPE) |
e5b401d4 JA |
213 | ret = 0; |
214 | ||
215 | if (ret < 0) { | |
e1161c32 | 216 | td_verror(td, errno, "invalidate_cache"); |
e5b401d4 JA |
217 | return 1; |
218 | } | |
219 | ||
ad2da605 | 220 | return ret; |
e5b401d4 JA |
221 | } |
222 | ||
6977bcd0 | 223 | int generic_close_file(struct thread_data fio_unused *td, struct fio_file *f) |
53cdc686 | 224 | { |
6977bcd0 JA |
225 | int ret = 0; |
226 | ||
ee56ad50 | 227 | dprint(FD_FILE, "fd close %s\n", f->file_name); |
4906e0b5 JA |
228 | |
229 | remove_file_hash(f); | |
230 | ||
6977bcd0 JA |
231 | if (close(f->fd) < 0) |
232 | ret = errno; | |
233 | ||
b5af8293 | 234 | f->fd = -1; |
6977bcd0 | 235 | return ret; |
53cdc686 JA |
236 | } |
237 | ||
4d4e80f2 | 238 | static int file_lookup_open(struct fio_file *f, int flags) |
53cdc686 | 239 | { |
29c1349f | 240 | struct fio_file *__f; |
4d4e80f2 JA |
241 | int from_hash; |
242 | ||
243 | __f = lookup_file_hash(f->file_name); | |
244 | if (__f) { | |
9efef3c4 | 245 | dprint(FD_FILE, "found file in hash %s\n", f->file_name); |
4d4e80f2 JA |
246 | /* |
247 | * racy, need the __f->lock locked | |
248 | */ | |
249 | f->lock = __f->lock; | |
250 | f->lock_owner = __f->lock_owner; | |
251 | f->lock_batch = __f->lock_batch; | |
252 | f->lock_ddir = __f->lock_ddir; | |
4d4e80f2 JA |
253 | from_hash = 1; |
254 | } else { | |
9efef3c4 | 255 | dprint(FD_FILE, "file not found in hash %s\n", f->file_name); |
4d4e80f2 JA |
256 | from_hash = 0; |
257 | } | |
258 | ||
e8670ef8 | 259 | f->fd = open(f->file_name, flags, 0600); |
4d4e80f2 JA |
260 | return from_hash; |
261 | } | |
262 | ||
263 | int generic_open_file(struct thread_data *td, struct fio_file *f) | |
264 | { | |
66159828 | 265 | int is_std = 0; |
53cdc686 | 266 | int flags = 0; |
29c1349f | 267 | int from_hash = 0; |
53cdc686 | 268 | |
ee56ad50 JA |
269 | dprint(FD_FILE, "fd open %s\n", f->file_name); |
270 | ||
66159828 JA |
271 | if (!strcmp(f->file_name, "-")) { |
272 | if (td_rw(td)) { | |
273 | log_err("fio: can't read/write to stdin/out\n"); | |
274 | return 1; | |
275 | } | |
276 | is_std = 1; | |
ce98fa66 JA |
277 | |
278 | /* | |
279 | * move output logging to stderr, if we are writing to stdout | |
280 | */ | |
281 | if (td_write(td)) | |
282 | f_out = stderr; | |
66159828 JA |
283 | } |
284 | ||
2dc1bbeb | 285 | if (td->o.odirect) |
2fd233b7 | 286 | flags |= OS_O_DIRECT; |
2dc1bbeb | 287 | if (td->o.sync_io) |
2fd233b7 | 288 | flags |= O_SYNC; |
ad92396c JA |
289 | if (f->filetype != FIO_TYPE_FILE) |
290 | flags |= O_NOATIME; | |
53cdc686 | 291 | |
056f3459 | 292 | open_again: |
660a1cb5 | 293 | if (td_write(td)) { |
4241ea8f JA |
294 | assert(!read_only); |
295 | ||
2fd233b7 | 296 | flags |= O_RDWR; |
53cdc686 | 297 | |
af52b345 | 298 | if (f->filetype == FIO_TYPE_FILE) |
2fd233b7 | 299 | flags |= O_CREAT; |
2fd233b7 | 300 | |
66159828 JA |
301 | if (is_std) |
302 | f->fd = dup(STDOUT_FILENO); | |
4d4e80f2 JA |
303 | else |
304 | from_hash = file_lookup_open(f, flags); | |
2fd233b7 | 305 | } else { |
4241ea8f | 306 | if (f->filetype == FIO_TYPE_CHAR && !read_only) |
2fd233b7 JA |
307 | flags |= O_RDWR; |
308 | else | |
309 | flags |= O_RDONLY; | |
310 | ||
66159828 JA |
311 | if (is_std) |
312 | f->fd = dup(STDIN_FILENO); | |
4d4e80f2 JA |
313 | else |
314 | from_hash = file_lookup_open(f, flags); | |
53cdc686 JA |
315 | } |
316 | ||
317 | if (f->fd == -1) { | |
e4e33258 | 318 | char buf[FIO_VERROR_SIZE]; |
e1161c32 JA |
319 | int __e = errno; |
320 | ||
056f3459 AC |
321 | if (errno == EPERM && (flags & O_NOATIME)) { |
322 | flags &= ~O_NOATIME; | |
323 | goto open_again; | |
324 | } | |
325 | ||
e8670ef8 | 326 | snprintf(buf, sizeof(buf) - 1, "open(%s)", f->file_name); |
e4e33258 JA |
327 | |
328 | td_verror(td, __e, buf); | |
53cdc686 JA |
329 | } |
330 | ||
b5af8293 JA |
331 | if (get_file_size(td, f)) |
332 | goto err; | |
333 | ||
29c1349f JA |
334 | if (!from_hash && f->fd != -1) { |
335 | if (add_file_hash(f)) { | |
336 | int ret; | |
337 | ||
338 | /* | |
339 | * OK to ignore, we haven't done anything with it | |
340 | */ | |
341 | ret = generic_close_file(td, f); | |
342 | goto open_again; | |
343 | } | |
344 | } | |
4906e0b5 | 345 | |
53cdc686 | 346 | return 0; |
b5af8293 JA |
347 | err: |
348 | close(f->fd); | |
349 | return 1; | |
350 | } | |
351 | ||
21972cde JA |
352 | int open_files(struct thread_data *td) |
353 | { | |
354 | struct fio_file *f; | |
af52b345 JA |
355 | unsigned int i; |
356 | int err = 0; | |
21972cde | 357 | |
ee56ad50 JA |
358 | dprint(FD_FILE, "open files\n"); |
359 | ||
21972cde | 360 | for_each_file(td, f, i) { |
b5af8293 | 361 | err = td_io_open_file(td, f); |
9bf27b45 JA |
362 | if (err) { |
363 | if (td->error == EMFILE) { | |
5ec10eaa JA |
364 | log_err("fio: limited open files to: %d\n", |
365 | td->nr_open_files); | |
9bf27b45 JA |
366 | td->o.open_files = td->nr_open_files; |
367 | err = 0; | |
368 | clear_error(td); | |
369 | } | |
21972cde | 370 | break; |
9bf27b45 | 371 | } |
b5af8293 | 372 | |
2dc1bbeb | 373 | if (td->o.open_files == td->nr_open_files) |
b5af8293 | 374 | break; |
21972cde JA |
375 | } |
376 | ||
7abf833d JA |
377 | if (!err) |
378 | return 0; | |
379 | ||
bdb4e2e9 | 380 | for_each_file(td, f, i) |
b5af8293 | 381 | td_io_close_file(td, f); |
7abf833d | 382 | |
21972cde JA |
383 | return err; |
384 | } | |
385 | ||
7bb48f84 JA |
386 | /* |
387 | * open/close all files, so that ->real_file_size gets set | |
388 | */ | |
bab3fd58 | 389 | static int get_file_sizes(struct thread_data *td) |
7bb48f84 JA |
390 | { |
391 | struct fio_file *f; | |
392 | unsigned int i; | |
bab3fd58 | 393 | int err = 0; |
7bb48f84 JA |
394 | |
395 | for_each_file(td, f, i) { | |
5ec10eaa JA |
396 | dprint(FD_FILE, "get file size for %p/%d/%p\n", f, i, |
397 | f->file_name); | |
9efef3c4 | 398 | |
bab3fd58 | 399 | if (td->io_ops->open_file(td, f)) { |
40b44f4a JA |
400 | if (td->error != ENOENT) { |
401 | log_err("%s\n", td->verror); | |
402 | err = 1; | |
403 | } | |
541d66d7 | 404 | clear_error(td); |
07eb79df JA |
405 | } else { |
406 | if (td->io_ops->close_file) | |
407 | td->io_ops->close_file(td, f); | |
408 | } | |
409b3417 JA |
409 | |
410 | if (f->real_file_size == -1ULL && td->o.size) | |
411 | f->real_file_size = td->o.size / td->o.nr_files; | |
7bb48f84 | 412 | } |
bab3fd58 JA |
413 | |
414 | return err; | |
7bb48f84 JA |
415 | } |
416 | ||
417 | /* | |
418 | * Open the files and setup files sizes, creating files if necessary. | |
419 | */ | |
53cdc686 JA |
420 | int setup_files(struct thread_data *td) |
421 | { | |
7bb48f84 | 422 | unsigned long long total_size, extend_size; |
53cdc686 | 423 | struct fio_file *f; |
af52b345 | 424 | unsigned int i; |
000b0803 | 425 | int err = 0, need_extend; |
53cdc686 | 426 | |
ee56ad50 JA |
427 | dprint(FD_FILE, "setup files\n"); |
428 | ||
53cdc686 JA |
429 | /* |
430 | * if ioengine defines a setup() method, it's responsible for | |
7bb48f84 JA |
431 | * opening the files and setting f->real_file_size to indicate |
432 | * the valid range for that file. | |
53cdc686 JA |
433 | */ |
434 | if (td->io_ops->setup) | |
7bb48f84 JA |
435 | err = td->io_ops->setup(td); |
436 | else | |
bab3fd58 | 437 | err = get_file_sizes(td); |
53cdc686 | 438 | |
f1027063 JA |
439 | if (err) |
440 | return err; | |
441 | ||
0a7eb121 | 442 | /* |
7bb48f84 JA |
443 | * check sizes. if the files/devices do not exist and the size |
444 | * isn't passed to fio, abort. | |
0a7eb121 | 445 | */ |
7bb48f84 JA |
446 | total_size = 0; |
447 | for_each_file(td, f, i) { | |
448 | if (f->real_file_size == -1ULL) | |
449 | total_size = -1ULL; | |
450 | else | |
451 | total_size += f->real_file_size; | |
452 | } | |
0a7eb121 | 453 | |
7bb48f84 JA |
454 | /* |
455 | * device/file sizes are zero and no size given, punt | |
456 | */ | |
1f809d15 | 457 | if ((!total_size || total_size == -1ULL) && !td->o.size && |
aa31f1f1 | 458 | !(td->io_ops->flags & FIO_NOIO) && !td->o.fill_device) { |
7bb48f84 | 459 | log_err("%s: you need to specify size=\n", td->o.name); |
e1161c32 | 460 | td_verror(td, EINVAL, "total_file_size"); |
53cdc686 JA |
461 | return 1; |
462 | } | |
463 | ||
7bb48f84 JA |
464 | /* |
465 | * now file sizes are known, so we can set ->io_size. if size= is | |
466 | * not given, ->io_size is just equal to ->real_file_size. if size | |
467 | * is given, ->io_size is size / nr_files. | |
468 | */ | |
469 | extend_size = total_size = 0; | |
470 | need_extend = 0; | |
471 | for_each_file(td, f, i) { | |
bcdedd0a YHJT |
472 | f->file_offset = td->o.start_offset; |
473 | ||
7bb48f84 JA |
474 | if (!td->o.file_size_low) { |
475 | /* | |
476 | * no file size range given, file size is equal to | |
477 | * total size divided by number of files. if that is | |
478 | * zero, set it to the real file size. | |
479 | */ | |
480 | f->io_size = td->o.size / td->o.nr_files; | |
65bdb10a | 481 | if (!f->io_size) |
273f8c91 | 482 | f->io_size = f->real_file_size - f->file_offset; |
7bb48f84 JA |
483 | } else if (f->real_file_size < td->o.file_size_low || |
484 | f->real_file_size > td->o.file_size_high) { | |
5ec10eaa | 485 | if (f->file_offset > td->o.file_size_low) |
bcdedd0a | 486 | goto err_offset; |
7bb48f84 JA |
487 | /* |
488 | * file size given. if it's fixed, use that. if it's a | |
489 | * range, generate a random size in-between. | |
490 | */ | |
5ec10eaa JA |
491 | if (td->o.file_size_low == td->o.file_size_high) { |
492 | f->io_size = td->o.file_size_low | |
493 | - f->file_offset; | |
494 | } else { | |
495 | f->io_size = get_rand_file_size(td) | |
496 | - f->file_offset; | |
497 | } | |
65bdb10a | 498 | } else |
bcdedd0a | 499 | f->io_size = f->real_file_size - f->file_offset; |
53cdc686 | 500 | |
7bb48f84 JA |
501 | if (f->io_size == -1ULL) |
502 | total_size = -1ULL; | |
503 | else | |
504 | total_size += f->io_size; | |
505 | ||
506 | if (f->filetype == FIO_TYPE_FILE && | |
bcdedd0a | 507 | (f->io_size + f->file_offset) > f->real_file_size && |
7bb48f84 JA |
508 | !(td->io_ops->flags & FIO_DISKLESSIO)) { |
509 | need_extend++; | |
bcdedd0a | 510 | extend_size += (f->io_size + f->file_offset); |
7bb48f84 | 511 | f->flags |= FIO_FILE_EXTEND; |
5ec10eaa | 512 | } |
7bb48f84 | 513 | } |
53cdc686 | 514 | |
2298290e | 515 | if (!td->o.size || td->o.size > total_size) |
7bb48f84 | 516 | td->o.size = total_size; |
21972cde | 517 | |
7bb48f84 JA |
518 | /* |
519 | * See if we need to extend some files | |
520 | */ | |
521 | if (need_extend) { | |
522 | temp_stall_ts = 1; | |
f627d8ae | 523 | log_info("%s: Laying out IO file(s) (%u file(s) / %LuMiB)\n", |
7bb48f84 JA |
524 | td->o.name, need_extend, extend_size >> 20); |
525 | ||
526 | for_each_file(td, f, i) { | |
527 | if (!(f->flags & FIO_FILE_EXTEND)) | |
528 | continue; | |
529 | ||
409b3417 | 530 | assert(f->filetype == FIO_TYPE_FILE); |
7bb48f84 | 531 | f->flags &= ~FIO_FILE_EXTEND; |
bcdedd0a | 532 | f->real_file_size = (f->io_size + f->file_offset); |
7bb48f84 JA |
533 | err = extend_file(td, f); |
534 | if (err) | |
535 | break; | |
536 | } | |
537 | temp_stall_ts = 0; | |
538 | } | |
539 | ||
540 | if (err) | |
541 | return err; | |
542 | ||
543 | if (!td->o.zone_size) | |
544 | td->o.zone_size = td->o.size; | |
545 | ||
ea966f81 JA |
546 | /* |
547 | * iolog already set the total io size, if we read back | |
548 | * stored entries. | |
549 | */ | |
550 | if (!td->o.read_iolog_file) | |
551 | td->total_io_size = td->o.size * td->o.loops; | |
7bb48f84 | 552 | return 0; |
bcdedd0a YHJT |
553 | err_offset: |
554 | log_err("%s: you need to specify valid offset=\n", td->o.name); | |
555 | return 1; | |
53cdc686 JA |
556 | } |
557 | ||
68727076 JA |
558 | int init_random_map(struct thread_data *td) |
559 | { | |
509eab12 | 560 | unsigned long long blocks, num_maps; |
68727076 JA |
561 | struct fio_file *f; |
562 | unsigned int i; | |
563 | ||
de8dd119 | 564 | if (td->o.norandommap || !td_random(td)) |
68727076 JA |
565 | return 0; |
566 | ||
567 | for_each_file(td, f, i) { | |
5ec10eaa JA |
568 | blocks = (f->real_file_size + td->o.rw_min_bs - 1) / |
569 | (unsigned long long) td->o.rw_min_bs; | |
570 | num_maps = (blocks + BLOCKS_PER_MAP - 1) / | |
571 | (unsigned long long) BLOCKS_PER_MAP; | |
f17c4392 | 572 | f->file_map = smalloc(num_maps * sizeof(long)); |
68727076 | 573 | if (!f->file_map) { |
5ec10eaa JA |
574 | log_err("fio: failed allocating random map. If running" |
575 | " a large number of jobs, try the 'norandommap'" | |
576 | " option\n"); | |
68727076 JA |
577 | return 1; |
578 | } | |
579 | f->num_maps = num_maps; | |
68727076 JA |
580 | } |
581 | ||
582 | return 0; | |
583 | } | |
584 | ||
53cdc686 JA |
585 | void close_files(struct thread_data *td) |
586 | { | |
0ab8db89 | 587 | struct fio_file *f; |
af52b345 | 588 | unsigned int i; |
53cdc686 | 589 | |
24ffd2c2 JA |
590 | for_each_file(td, f, i) |
591 | td_io_close_file(td, f); | |
592 | } | |
593 | ||
594 | void close_and_free_files(struct thread_data *td) | |
595 | { | |
596 | struct fio_file *f; | |
597 | unsigned int i; | |
598 | ||
ee56ad50 JA |
599 | dprint(FD_FILE, "close files\n"); |
600 | ||
0ab8db89 | 601 | for_each_file(td, f, i) { |
a9b7b305 | 602 | if (td->o.unlink && f->filetype == FIO_TYPE_FILE) |
132ad46d | 603 | unlink(f->file_name); |
bdb4e2e9 | 604 | |
b5af8293 | 605 | td_io_close_file(td, f); |
b3dc7f07 | 606 | |
f17c4392 | 607 | sfree(f->file_name); |
fa1da865 JA |
608 | f->file_name = NULL; |
609 | ||
c343981b | 610 | if (f->file_map) { |
f17c4392 | 611 | sfree(f->file_map); |
c343981b JA |
612 | f->file_map = NULL; |
613 | } | |
78d99e6a | 614 | sfree(f); |
53cdc686 | 615 | } |
b4a6a59a | 616 | |
2dc1bbeb | 617 | td->o.filename = NULL; |
cade3ef4 | 618 | free(td->files); |
9efef3c4 | 619 | td->files_index = 0; |
b4a6a59a | 620 | td->files = NULL; |
2dc1bbeb | 621 | td->o.nr_files = 0; |
53cdc686 | 622 | } |
af52b345 | 623 | |
e3bab463 | 624 | static void get_file_type(struct fio_file *f) |
af52b345 JA |
625 | { |
626 | struct stat sb; | |
627 | ||
66159828 JA |
628 | if (!strcmp(f->file_name, "-")) |
629 | f->filetype = FIO_TYPE_PIPE; | |
630 | else | |
631 | f->filetype = FIO_TYPE_FILE; | |
af52b345 | 632 | |
e3bab463 | 633 | if (!lstat(f->file_name, &sb)) { |
af52b345 JA |
634 | if (S_ISBLK(sb.st_mode)) |
635 | f->filetype = FIO_TYPE_BD; | |
636 | else if (S_ISCHR(sb.st_mode)) | |
637 | f->filetype = FIO_TYPE_CHAR; | |
b5605e9d JA |
638 | else if (S_ISFIFO(sb.st_mode)) |
639 | f->filetype = FIO_TYPE_PIPE; | |
af52b345 JA |
640 | } |
641 | } | |
642 | ||
f29b25a3 | 643 | int add_file(struct thread_data *td, const char *fname) |
af52b345 | 644 | { |
7b4e4fe5 | 645 | int cur_files = td->files_index; |
bd0ee748 | 646 | char file_name[PATH_MAX]; |
af52b345 | 647 | struct fio_file *f; |
bd0ee748 | 648 | int len = 0; |
af52b345 | 649 | |
ee56ad50 JA |
650 | dprint(FD_FILE, "add file %s\n", fname); |
651 | ||
f17c4392 | 652 | f = smalloc(sizeof(*f)); |
af52b345 | 653 | f->fd = -1; |
bd0ee748 | 654 | |
9efef3c4 | 655 | dprint(FD_FILE, "resize file array to %d files\n", cur_files + 1); |
126d65c6 | 656 | |
9efef3c4 | 657 | td->files = realloc(td->files, (cur_files + 1) * sizeof(f)); |
126d65c6 JA |
658 | td->files[cur_files] = f; |
659 | ||
07eb79df JA |
660 | /* |
661 | * init function, io engine may not be loaded yet | |
662 | */ | |
663 | if (td->io_ops && (td->io_ops->flags & FIO_DISKLESSIO)) | |
664 | f->real_file_size = -1ULL; | |
665 | ||
bd0ee748 JA |
666 | if (td->o.directory) |
667 | len = sprintf(file_name, "%s/", td->o.directory); | |
668 | ||
669 | sprintf(file_name + len, "%s", fname); | |
f17c4392 | 670 | f->file_name = smalloc_strdup(file_name); |
af52b345 | 671 | |
e3bab463 | 672 | get_file_type(f); |
af52b345 | 673 | |
4d4e80f2 JA |
674 | switch (td->o.file_lock_mode) { |
675 | case FILE_LOCK_NONE: | |
676 | break; | |
677 | case FILE_LOCK_READWRITE: | |
678 | f->lock = fio_mutex_rw_init(); | |
679 | break; | |
680 | case FILE_LOCK_EXCLUSIVE: | |
681 | f->lock = fio_mutex_init(1); | |
682 | break; | |
683 | default: | |
684 | log_err("fio: unknown lock mode: %d\n", td->o.file_lock_mode); | |
685 | assert(0); | |
686 | } | |
29c1349f | 687 | |
7b4e4fe5 | 688 | td->files_index++; |
1549441c JA |
689 | if (f->filetype == FIO_TYPE_FILE) |
690 | td->nr_normal_files++; | |
f29b25a3 | 691 | |
5ec10eaa JA |
692 | dprint(FD_FILE, "file %p \"%s\" added at %d\n", f, f->file_name, |
693 | cur_files); | |
9efef3c4 | 694 | |
f29b25a3 | 695 | return cur_files; |
af52b345 | 696 | } |
0ad920e7 JA |
697 | |
698 | void get_file(struct fio_file *f) | |
699 | { | |
8172fe97 | 700 | dprint(FD_FILE, "get file %s, ref=%d\n", f->file_name, f->references); |
97af62ce | 701 | assert(f->flags & FIO_FILE_OPEN); |
0ad920e7 JA |
702 | f->references++; |
703 | } | |
704 | ||
6977bcd0 | 705 | int put_file(struct thread_data *td, struct fio_file *f) |
0ad920e7 | 706 | { |
98e1ac4e | 707 | int f_ret = 0, ret = 0; |
6977bcd0 | 708 | |
8172fe97 | 709 | dprint(FD_FILE, "put file %s, ref=%d\n", f->file_name, f->references); |
ee56ad50 | 710 | |
0ad920e7 | 711 | if (!(f->flags & FIO_FILE_OPEN)) |
6977bcd0 | 712 | return 0; |
0ad920e7 JA |
713 | |
714 | assert(f->references); | |
715 | if (--f->references) | |
6977bcd0 | 716 | return 0; |
0ad920e7 | 717 | |
d424d4dd | 718 | if (should_fsync(td) && td->o.fsync_on_close) |
98e1ac4e | 719 | f_ret = fsync(f->fd); |
ebb1415f | 720 | |
0ad920e7 | 721 | if (td->io_ops->close_file) |
6977bcd0 | 722 | ret = td->io_ops->close_file(td, f); |
1020a139 | 723 | |
98e1ac4e JA |
724 | if (!ret) |
725 | ret = !f_ret; | |
726 | ||
0ad920e7 JA |
727 | td->nr_open_files--; |
728 | f->flags &= ~FIO_FILE_OPEN; | |
6977bcd0 | 729 | return ret; |
0ad920e7 | 730 | } |
bbf6b540 | 731 | |
4d4e80f2 | 732 | void lock_file(struct thread_data *td, struct fio_file *f, enum fio_ddir ddir) |
b2bd2bd9 | 733 | { |
4d4e80f2 JA |
734 | if (!f->lock || td->o.file_lock_mode == FILE_LOCK_NONE) |
735 | return; | |
29c1349f | 736 | |
4d4e80f2 JA |
737 | if (f->lock_owner == td && f->lock_batch--) |
738 | return; | |
739 | ||
740 | if (td->o.file_lock_mode == FILE_LOCK_READWRITE) { | |
741 | if (ddir == DDIR_READ) | |
742 | fio_mutex_down_read(f->lock); | |
743 | else | |
744 | fio_mutex_down_write(f->lock); | |
745 | } else if (td->o.file_lock_mode == FILE_LOCK_EXCLUSIVE) | |
746 | fio_mutex_down(f->lock); | |
747 | ||
748 | f->lock_owner = td; | |
749 | f->lock_batch = td->o.lockfile_batch; | |
750 | f->lock_ddir = ddir; | |
b2bd2bd9 JA |
751 | } |
752 | ||
4d4e80f2 | 753 | void unlock_file(struct thread_data *td, struct fio_file *f) |
b2bd2bd9 | 754 | { |
4d4e80f2 JA |
755 | if (!f->lock || td->o.file_lock_mode == FILE_LOCK_NONE) |
756 | return; | |
757 | if (f->lock_batch) | |
758 | return; | |
759 | ||
760 | if (td->o.file_lock_mode == FILE_LOCK_READWRITE) { | |
761 | const int is_read = f->lock_ddir == DDIR_READ; | |
762 | int val = fio_mutex_getval(f->lock); | |
29c1349f | 763 | |
4d4e80f2 JA |
764 | if ((is_read && val == 1) || (!is_read && val == -1)) |
765 | f->lock_owner = NULL; | |
29c1349f | 766 | |
4d4e80f2 JA |
767 | if (is_read) |
768 | fio_mutex_up_read(f->lock); | |
769 | else | |
770 | fio_mutex_up_write(f->lock); | |
771 | } else if (td->o.file_lock_mode == FILE_LOCK_EXCLUSIVE) { | |
772 | int val = fio_mutex_getval(f->lock); | |
773 | ||
774 | if (val == 0) | |
775 | f->lock_owner = NULL; | |
776 | ||
777 | fio_mutex_up(f->lock); | |
29c1349f | 778 | } |
b2bd2bd9 JA |
779 | } |
780 | ||
4d4e80f2 JA |
781 | void unlock_file_all(struct thread_data *td, struct fio_file *f) |
782 | { | |
783 | if (f->lock_owner != td) | |
784 | return; | |
785 | ||
786 | f->lock_batch = 0; | |
787 | unlock_file(td, f); | |
788 | } | |
789 | ||
bbf6b540 JA |
790 | static int recurse_dir(struct thread_data *td, const char *dirname) |
791 | { | |
792 | struct dirent *dir; | |
793 | int ret = 0; | |
794 | DIR *D; | |
795 | ||
796 | D = opendir(dirname); | |
797 | if (!D) { | |
0ddb270c JA |
798 | char buf[FIO_VERROR_SIZE]; |
799 | ||
800 | snprintf(buf, FIO_VERROR_SIZE - 1, "opendir(%s)", dirname); | |
801 | td_verror(td, errno, buf); | |
bbf6b540 JA |
802 | return 1; |
803 | } | |
804 | ||
805 | while ((dir = readdir(D)) != NULL) { | |
806 | char full_path[PATH_MAX]; | |
807 | struct stat sb; | |
808 | ||
e85b2b83 JA |
809 | if (!strcmp(dir->d_name, ".") || !strcmp(dir->d_name, "..")) |
810 | continue; | |
96d32d51 | 811 | |
bbf6b540 JA |
812 | sprintf(full_path, "%s/%s", dirname, dir->d_name); |
813 | ||
814 | if (lstat(full_path, &sb) == -1) { | |
815 | if (errno != ENOENT) { | |
816 | td_verror(td, errno, "stat"); | |
817 | return 1; | |
818 | } | |
819 | } | |
820 | ||
821 | if (S_ISREG(sb.st_mode)) { | |
822 | add_file(td, full_path); | |
2dc1bbeb | 823 | td->o.nr_files++; |
bbf6b540 JA |
824 | continue; |
825 | } | |
0ddb270c JA |
826 | if (!S_ISDIR(sb.st_mode)) |
827 | continue; | |
bbf6b540 | 828 | |
5ec10eaa JA |
829 | ret = recurse_dir(td, full_path); |
830 | if (ret) | |
bbf6b540 JA |
831 | break; |
832 | } | |
833 | ||
834 | closedir(D); | |
835 | return ret; | |
836 | } | |
837 | ||
838 | int add_dir_files(struct thread_data *td, const char *path) | |
839 | { | |
0ddb270c JA |
840 | int ret = recurse_dir(td, path); |
841 | ||
842 | if (!ret) | |
843 | log_info("fio: opendir added %d files\n", td->o.nr_files); | |
844 | ||
845 | return ret; | |
bbf6b540 | 846 | } |
cade3ef4 JA |
847 | |
848 | void dup_files(struct thread_data *td, struct thread_data *org) | |
849 | { | |
850 | struct fio_file *f; | |
851 | unsigned int i; | |
9efef3c4 JA |
852 | |
853 | dprint(FD_FILE, "dup files: %d\n", org->files_index); | |
cade3ef4 JA |
854 | |
855 | if (!org->files) | |
856 | return; | |
857 | ||
9efef3c4 | 858 | td->files = malloc(org->files_index * sizeof(f)); |
cade3ef4 | 859 | |
9efef3c4 | 860 | for_each_file(org, f, i) { |
b0fe421a JA |
861 | struct fio_file *__f; |
862 | ||
f17c4392 | 863 | __f = smalloc(sizeof(*__f)); |
b0fe421a | 864 | |
cade3ef4 | 865 | if (f->file_name) |
f17c4392 | 866 | __f->file_name = smalloc_strdup(f->file_name); |
b0fe421a JA |
867 | |
868 | td->files[i] = __f; | |
cade3ef4 JA |
869 | } |
870 | } | |
f29b25a3 JA |
871 | |
872 | /* | |
873 | * Returns the index that matches the filename, or -1 if not there | |
874 | */ | |
875 | int get_fileno(struct thread_data *td, const char *fname) | |
876 | { | |
877 | struct fio_file *f; | |
878 | unsigned int i; | |
879 | ||
880 | for_each_file(td, f, i) | |
881 | if (!strcmp(f->file_name, fname)) | |
882 | return i; | |
883 | ||
884 | return -1; | |
885 | } | |
886 | ||
887 | /* | |
888 | * For log usage, where we add/open/close files automatically | |
889 | */ | |
890 | void free_release_files(struct thread_data *td) | |
891 | { | |
892 | close_files(td); | |
893 | td->files_index = 0; | |
894 | td->nr_normal_files = 0; | |
895 | } |