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 | */ | |
ffdfabd4 JA |
33 | if (td_read(td) || (td_write(td) && td->o.overwrite) || |
34 | (td_write(td) && td->io_ops->flags & FIO_NOEXTEND)) | |
507a702f | 35 | new_layout = 1; |
ea443657 JA |
36 | if (td_write(td) && !td->o.overwrite) |
37 | unlink_file = 1; | |
507a702f | 38 | |
6ae1f57f | 39 | if (unlink_file || new_layout) { |
bd199f2b | 40 | dprint(FD_FILE, "layout unlink %s\n", f->file_name); |
982016d6 | 41 | if ((unlink(f->file_name) < 0) && (errno != ENOENT)) { |
7bb48f84 JA |
42 | td_verror(td, errno, "unlink"); |
43 | return 1; | |
44 | } | |
45 | } | |
46 | ||
507a702f JA |
47 | flags = O_WRONLY | O_CREAT; |
48 | if (new_layout) | |
49 | flags |= O_TRUNC; | |
50 | ||
ee56ad50 | 51 | dprint(FD_FILE, "open file %s, flags %x\n", f->file_name, flags); |
507a702f | 52 | f->fd = open(f->file_name, flags, 0644); |
53cdc686 | 53 | if (f->fd < 0) { |
e1161c32 | 54 | td_verror(td, errno, "open"); |
53cdc686 JA |
55 | return 1; |
56 | } | |
57 | ||
fc74ac1d SL |
58 | if (!new_layout) |
59 | goto done; | |
60 | ||
ee56ad50 JA |
61 | dprint(FD_FILE, "truncate file %s, size %llu\n", f->file_name, |
62 | f->real_file_size); | |
7bb48f84 | 63 | if (ftruncate(f->fd, f->real_file_size) == -1) { |
e1161c32 | 64 | td_verror(td, errno, "ftruncate"); |
53cdc686 JA |
65 | goto err; |
66 | } | |
67 | ||
ee56ad50 JA |
68 | dprint(FD_FILE, "fallocate file %s, size %llu\n", f->file_name, |
69 | f->real_file_size); | |
7bb48f84 | 70 | if (posix_fallocate(f->fd, 0, f->real_file_size) < 0) { |
e1161c32 | 71 | td_verror(td, errno, "posix_fallocate"); |
40f8298c JA |
72 | goto err; |
73 | } | |
74 | ||
2dc1bbeb JA |
75 | b = malloc(td->o.max_bs[DDIR_WRITE]); |
76 | memset(b, 0, td->o.max_bs[DDIR_WRITE]); | |
53cdc686 | 77 | |
7bb48f84 | 78 | left = f->real_file_size; |
53cdc686 | 79 | while (left && !td->terminate) { |
2dc1bbeb | 80 | bs = td->o.max_bs[DDIR_WRITE]; |
53cdc686 JA |
81 | if (bs > left) |
82 | bs = left; | |
83 | ||
84 | r = write(f->fd, b, bs); | |
85 | ||
86 | if (r == (int) bs) { | |
87 | left -= bs; | |
88 | continue; | |
89 | } else { | |
90 | if (r < 0) | |
e1161c32 | 91 | td_verror(td, errno, "write"); |
53cdc686 | 92 | else |
e1161c32 | 93 | td_verror(td, EIO, "write"); |
53cdc686 JA |
94 | |
95 | break; | |
96 | } | |
97 | } | |
98 | ||
ffdfabd4 JA |
99 | if (td->terminate) { |
100 | dprint(FD_FILE, "terminate unlink %s\n", f->file_name); | |
53cdc686 | 101 | unlink(f->file_name); |
ffdfabd4 | 102 | } else if (td->o.create_fsync) { |
98e1ac4e JA |
103 | if (fsync(f->fd) < 0) { |
104 | td_verror(td, errno, "fsync"); | |
105 | goto err; | |
106 | } | |
107 | } | |
53cdc686 JA |
108 | |
109 | free(b); | |
507a702f | 110 | done: |
53cdc686 JA |
111 | close(f->fd); |
112 | f->fd = -1; | |
113 | return 0; | |
114 | err: | |
115 | close(f->fd); | |
116 | f->fd = -1; | |
117 | return 1; | |
118 | } | |
119 | ||
7bb48f84 | 120 | static unsigned long long get_rand_file_size(struct thread_data *td) |
9c60ce64 | 121 | { |
5ec10eaa | 122 | unsigned long long ret, size_d; |
9c60ce64 JA |
123 | long r; |
124 | ||
9c60ce64 | 125 | r = os_random_long(&td->file_size_state); |
5ec10eaa JA |
126 | size_d = td->o.file_size_high - td->o.file_size_low; |
127 | ret = (unsigned long long) ((double) size_d * (r / (RAND_MAX + 1.0))); | |
128 | ret += td->o.file_size_low; | |
2dc1bbeb | 129 | ret -= (ret % td->o.rw_min_bs); |
9c60ce64 JA |
130 | return ret; |
131 | } | |
132 | ||
53cdc686 JA |
133 | static int file_size(struct thread_data *td, struct fio_file *f) |
134 | { | |
135 | struct stat st; | |
136 | ||
7bb48f84 JA |
137 | if (fstat(f->fd, &st) == -1) { |
138 | td_verror(td, errno, "fstat"); | |
139 | return 1; | |
140 | } | |
53cdc686 | 141 | |
7bb48f84 | 142 | f->real_file_size = st.st_size; |
53cdc686 JA |
143 | return 0; |
144 | } | |
145 | ||
146 | static int bdev_size(struct thread_data *td, struct fio_file *f) | |
147 | { | |
148 | unsigned long long bytes; | |
149 | int r; | |
150 | ||
151 | r = blockdev_size(f->fd, &bytes); | |
152 | if (r) { | |
e1161c32 | 153 | td_verror(td, r, "blockdev_size"); |
53cdc686 JA |
154 | return 1; |
155 | } | |
156 | ||
157 | f->real_file_size = bytes; | |
53cdc686 JA |
158 | return 0; |
159 | } | |
160 | ||
161 | static int get_file_size(struct thread_data *td, struct fio_file *f) | |
162 | { | |
163 | int ret = 0; | |
164 | ||
409b3417 JA |
165 | if (f->flags & FIO_SIZE_KNOWN) |
166 | return 0; | |
167 | ||
7bb48f84 JA |
168 | if (f->filetype == FIO_TYPE_FILE) |
169 | ret = file_size(td, f); | |
170 | else if (f->filetype == FIO_TYPE_BD) | |
53cdc686 JA |
171 | ret = bdev_size(td, f); |
172 | else | |
173 | f->real_file_size = -1; | |
174 | ||
175 | if (ret) | |
176 | return ret; | |
177 | ||
178 | if (f->file_offset > f->real_file_size) { | |
5ec10eaa JA |
179 | log_err("%s: offset extends end (%Lu > %Lu)\n", td->o.name, |
180 | f->file_offset, f->real_file_size); | |
53cdc686 JA |
181 | return 1; |
182 | } | |
183 | ||
409b3417 | 184 | f->flags |= FIO_SIZE_KNOWN; |
53cdc686 JA |
185 | return 0; |
186 | } | |
187 | ||
e5b401d4 JA |
188 | int file_invalidate_cache(struct thread_data *td, struct fio_file *f) |
189 | { | |
190 | int ret = 0; | |
191 | ||
ee56ad50 JA |
192 | dprint(FD_IO, "invalidate cache (%d)\n", td->o.odirect); |
193 | ||
2dc1bbeb | 194 | if (td->o.odirect) |
b5af8293 JA |
195 | return 0; |
196 | ||
e5b401d4 JA |
197 | /* |
198 | * FIXME: add blockdev flushing too | |
199 | */ | |
b5af8293 | 200 | if (f->mmap) |
7bb48f84 | 201 | ret = madvise(f->mmap, f->io_size, MADV_DONTNEED); |
5ec10eaa JA |
202 | else if (f->filetype == FIO_TYPE_FILE) { |
203 | ret = fadvise(f->fd, f->file_offset, f->io_size, | |
204 | POSIX_FADV_DONTNEED); | |
205 | } else if (f->filetype == FIO_TYPE_BD) { | |
b5af8293 | 206 | ret = blockdev_invalidate_cache(f->fd); |
7e0e25c9 | 207 | if (ret < 0 && errno == EACCES && geteuid()) { |
7172cfe8 | 208 | if (!root_warn) { |
5ec10eaa JA |
209 | log_err("fio: only root may flush block " |
210 | "devices. Cache flush bypassed!\n"); | |
7172cfe8 JA |
211 | root_warn = 1; |
212 | } | |
7e0e25c9 JA |
213 | ret = 0; |
214 | } | |
b5605e9d | 215 | } else if (f->filetype == FIO_TYPE_CHAR || f->filetype == FIO_TYPE_PIPE) |
e5b401d4 JA |
216 | ret = 0; |
217 | ||
218 | if (ret < 0) { | |
e1161c32 | 219 | td_verror(td, errno, "invalidate_cache"); |
e5b401d4 JA |
220 | return 1; |
221 | } | |
222 | ||
ad2da605 | 223 | return ret; |
e5b401d4 JA |
224 | } |
225 | ||
6977bcd0 | 226 | int generic_close_file(struct thread_data fio_unused *td, struct fio_file *f) |
53cdc686 | 227 | { |
6977bcd0 JA |
228 | int ret = 0; |
229 | ||
ee56ad50 | 230 | dprint(FD_FILE, "fd close %s\n", f->file_name); |
4906e0b5 JA |
231 | |
232 | remove_file_hash(f); | |
233 | ||
6977bcd0 JA |
234 | if (close(f->fd) < 0) |
235 | ret = errno; | |
236 | ||
b5af8293 | 237 | f->fd = -1; |
6977bcd0 | 238 | return ret; |
53cdc686 JA |
239 | } |
240 | ||
4d4e80f2 | 241 | static int file_lookup_open(struct fio_file *f, int flags) |
53cdc686 | 242 | { |
29c1349f | 243 | struct fio_file *__f; |
4d4e80f2 JA |
244 | int from_hash; |
245 | ||
246 | __f = lookup_file_hash(f->file_name); | |
247 | if (__f) { | |
9efef3c4 | 248 | dprint(FD_FILE, "found file in hash %s\n", f->file_name); |
4d4e80f2 JA |
249 | /* |
250 | * racy, need the __f->lock locked | |
251 | */ | |
252 | f->lock = __f->lock; | |
253 | f->lock_owner = __f->lock_owner; | |
254 | f->lock_batch = __f->lock_batch; | |
255 | f->lock_ddir = __f->lock_ddir; | |
4d4e80f2 JA |
256 | from_hash = 1; |
257 | } else { | |
9efef3c4 | 258 | dprint(FD_FILE, "file not found in hash %s\n", f->file_name); |
4d4e80f2 JA |
259 | from_hash = 0; |
260 | } | |
261 | ||
e8670ef8 | 262 | f->fd = open(f->file_name, flags, 0600); |
4d4e80f2 JA |
263 | return from_hash; |
264 | } | |
265 | ||
266 | int generic_open_file(struct thread_data *td, struct fio_file *f) | |
267 | { | |
66159828 | 268 | int is_std = 0; |
53cdc686 | 269 | int flags = 0; |
29c1349f | 270 | int from_hash = 0; |
53cdc686 | 271 | |
ee56ad50 JA |
272 | dprint(FD_FILE, "fd open %s\n", f->file_name); |
273 | ||
66159828 JA |
274 | if (!strcmp(f->file_name, "-")) { |
275 | if (td_rw(td)) { | |
276 | log_err("fio: can't read/write to stdin/out\n"); | |
277 | return 1; | |
278 | } | |
279 | is_std = 1; | |
ce98fa66 JA |
280 | |
281 | /* | |
282 | * move output logging to stderr, if we are writing to stdout | |
283 | */ | |
284 | if (td_write(td)) | |
285 | f_out = stderr; | |
66159828 JA |
286 | } |
287 | ||
2dc1bbeb | 288 | if (td->o.odirect) |
2fd233b7 | 289 | flags |= OS_O_DIRECT; |
2dc1bbeb | 290 | if (td->o.sync_io) |
2fd233b7 | 291 | flags |= O_SYNC; |
ad92396c JA |
292 | if (f->filetype != FIO_TYPE_FILE) |
293 | flags |= O_NOATIME; | |
53cdc686 | 294 | |
056f3459 | 295 | open_again: |
660a1cb5 | 296 | if (td_write(td)) { |
17308158 JA |
297 | if (!read_only) |
298 | flags |= O_RDWR; | |
53cdc686 | 299 | |
af52b345 | 300 | if (f->filetype == FIO_TYPE_FILE) |
2fd233b7 | 301 | flags |= O_CREAT; |
2fd233b7 | 302 | |
66159828 JA |
303 | if (is_std) |
304 | f->fd = dup(STDOUT_FILENO); | |
4d4e80f2 JA |
305 | else |
306 | from_hash = file_lookup_open(f, flags); | |
2fd233b7 | 307 | } else { |
4241ea8f | 308 | if (f->filetype == FIO_TYPE_CHAR && !read_only) |
2fd233b7 JA |
309 | flags |= O_RDWR; |
310 | else | |
311 | flags |= O_RDONLY; | |
312 | ||
66159828 JA |
313 | if (is_std) |
314 | f->fd = dup(STDIN_FILENO); | |
4d4e80f2 JA |
315 | else |
316 | from_hash = file_lookup_open(f, flags); | |
53cdc686 JA |
317 | } |
318 | ||
319 | if (f->fd == -1) { | |
e4e33258 | 320 | char buf[FIO_VERROR_SIZE]; |
e1161c32 JA |
321 | int __e = errno; |
322 | ||
056f3459 AC |
323 | if (errno == EPERM && (flags & O_NOATIME)) { |
324 | flags &= ~O_NOATIME; | |
325 | goto open_again; | |
326 | } | |
327 | ||
e8670ef8 | 328 | snprintf(buf, sizeof(buf) - 1, "open(%s)", f->file_name); |
e4e33258 JA |
329 | |
330 | td_verror(td, __e, buf); | |
53cdc686 JA |
331 | } |
332 | ||
b5af8293 JA |
333 | if (get_file_size(td, f)) |
334 | goto err; | |
335 | ||
29c1349f JA |
336 | if (!from_hash && f->fd != -1) { |
337 | if (add_file_hash(f)) { | |
338 | int ret; | |
339 | ||
340 | /* | |
341 | * OK to ignore, we haven't done anything with it | |
342 | */ | |
343 | ret = generic_close_file(td, f); | |
344 | goto open_again; | |
345 | } | |
346 | } | |
4906e0b5 | 347 | |
53cdc686 | 348 | return 0; |
b5af8293 JA |
349 | err: |
350 | close(f->fd); | |
351 | return 1; | |
352 | } | |
353 | ||
21972cde JA |
354 | int open_files(struct thread_data *td) |
355 | { | |
356 | struct fio_file *f; | |
af52b345 JA |
357 | unsigned int i; |
358 | int err = 0; | |
21972cde | 359 | |
ee56ad50 JA |
360 | dprint(FD_FILE, "open files\n"); |
361 | ||
21972cde | 362 | for_each_file(td, f, i) { |
b5af8293 | 363 | err = td_io_open_file(td, f); |
9bf27b45 JA |
364 | if (err) { |
365 | if (td->error == EMFILE) { | |
5ec10eaa JA |
366 | log_err("fio: limited open files to: %d\n", |
367 | td->nr_open_files); | |
9bf27b45 JA |
368 | td->o.open_files = td->nr_open_files; |
369 | err = 0; | |
370 | clear_error(td); | |
371 | } | |
21972cde | 372 | break; |
9bf27b45 | 373 | } |
b5af8293 | 374 | |
2dc1bbeb | 375 | if (td->o.open_files == td->nr_open_files) |
b5af8293 | 376 | break; |
21972cde JA |
377 | } |
378 | ||
7abf833d JA |
379 | if (!err) |
380 | return 0; | |
381 | ||
bdb4e2e9 | 382 | for_each_file(td, f, i) |
b5af8293 | 383 | td_io_close_file(td, f); |
7abf833d | 384 | |
21972cde JA |
385 | return err; |
386 | } | |
387 | ||
7bb48f84 JA |
388 | /* |
389 | * open/close all files, so that ->real_file_size gets set | |
390 | */ | |
bab3fd58 | 391 | static int get_file_sizes(struct thread_data *td) |
7bb48f84 JA |
392 | { |
393 | struct fio_file *f; | |
394 | unsigned int i; | |
bab3fd58 | 395 | int err = 0; |
7bb48f84 JA |
396 | |
397 | for_each_file(td, f, i) { | |
5ec10eaa JA |
398 | dprint(FD_FILE, "get file size for %p/%d/%p\n", f, i, |
399 | f->file_name); | |
9efef3c4 | 400 | |
bab3fd58 | 401 | if (td->io_ops->open_file(td, f)) { |
40b44f4a JA |
402 | if (td->error != ENOENT) { |
403 | log_err("%s\n", td->verror); | |
404 | err = 1; | |
405 | } | |
541d66d7 | 406 | clear_error(td); |
07eb79df JA |
407 | } else { |
408 | if (td->io_ops->close_file) | |
409 | td->io_ops->close_file(td, f); | |
410 | } | |
409b3417 JA |
411 | |
412 | if (f->real_file_size == -1ULL && td->o.size) | |
413 | f->real_file_size = td->o.size / td->o.nr_files; | |
7bb48f84 | 414 | } |
bab3fd58 JA |
415 | |
416 | return err; | |
7bb48f84 JA |
417 | } |
418 | ||
419 | /* | |
420 | * Open the files and setup files sizes, creating files if necessary. | |
421 | */ | |
53cdc686 JA |
422 | int setup_files(struct thread_data *td) |
423 | { | |
7bb48f84 | 424 | unsigned long long total_size, extend_size; |
53cdc686 | 425 | struct fio_file *f; |
af52b345 | 426 | unsigned int i; |
000b0803 | 427 | int err = 0, need_extend; |
53cdc686 | 428 | |
ee56ad50 JA |
429 | dprint(FD_FILE, "setup files\n"); |
430 | ||
691c8fb0 JA |
431 | if (td->o.read_iolog_file) |
432 | return 0; | |
433 | ||
53cdc686 JA |
434 | /* |
435 | * if ioengine defines a setup() method, it's responsible for | |
7bb48f84 JA |
436 | * opening the files and setting f->real_file_size to indicate |
437 | * the valid range for that file. | |
53cdc686 JA |
438 | */ |
439 | if (td->io_ops->setup) | |
7bb48f84 JA |
440 | err = td->io_ops->setup(td); |
441 | else | |
bab3fd58 | 442 | err = get_file_sizes(td); |
53cdc686 | 443 | |
f1027063 JA |
444 | if (err) |
445 | return err; | |
446 | ||
0a7eb121 | 447 | /* |
7bb48f84 JA |
448 | * check sizes. if the files/devices do not exist and the size |
449 | * isn't passed to fio, abort. | |
0a7eb121 | 450 | */ |
7bb48f84 JA |
451 | total_size = 0; |
452 | for_each_file(td, f, i) { | |
453 | if (f->real_file_size == -1ULL) | |
454 | total_size = -1ULL; | |
455 | else | |
456 | total_size += f->real_file_size; | |
457 | } | |
0a7eb121 | 458 | |
7bb48f84 JA |
459 | /* |
460 | * device/file sizes are zero and no size given, punt | |
461 | */ | |
1f809d15 | 462 | if ((!total_size || total_size == -1ULL) && !td->o.size && |
aa31f1f1 | 463 | !(td->io_ops->flags & FIO_NOIO) && !td->o.fill_device) { |
7bb48f84 | 464 | log_err("%s: you need to specify size=\n", td->o.name); |
e1161c32 | 465 | td_verror(td, EINVAL, "total_file_size"); |
53cdc686 JA |
466 | return 1; |
467 | } | |
468 | ||
7bb48f84 JA |
469 | /* |
470 | * now file sizes are known, so we can set ->io_size. if size= is | |
471 | * not given, ->io_size is just equal to ->real_file_size. if size | |
472 | * is given, ->io_size is size / nr_files. | |
473 | */ | |
474 | extend_size = total_size = 0; | |
475 | need_extend = 0; | |
476 | for_each_file(td, f, i) { | |
bcdedd0a YHJT |
477 | f->file_offset = td->o.start_offset; |
478 | ||
7bb48f84 JA |
479 | if (!td->o.file_size_low) { |
480 | /* | |
481 | * no file size range given, file size is equal to | |
482 | * total size divided by number of files. if that is | |
483 | * zero, set it to the real file size. | |
484 | */ | |
485 | f->io_size = td->o.size / td->o.nr_files; | |
65bdb10a | 486 | if (!f->io_size) |
273f8c91 | 487 | f->io_size = f->real_file_size - f->file_offset; |
7bb48f84 JA |
488 | } else if (f->real_file_size < td->o.file_size_low || |
489 | f->real_file_size > td->o.file_size_high) { | |
5ec10eaa | 490 | if (f->file_offset > td->o.file_size_low) |
bcdedd0a | 491 | goto err_offset; |
7bb48f84 JA |
492 | /* |
493 | * file size given. if it's fixed, use that. if it's a | |
494 | * range, generate a random size in-between. | |
495 | */ | |
5ec10eaa JA |
496 | if (td->o.file_size_low == td->o.file_size_high) { |
497 | f->io_size = td->o.file_size_low | |
498 | - f->file_offset; | |
499 | } else { | |
500 | f->io_size = get_rand_file_size(td) | |
501 | - f->file_offset; | |
502 | } | |
65bdb10a | 503 | } else |
bcdedd0a | 504 | f->io_size = f->real_file_size - f->file_offset; |
53cdc686 | 505 | |
7bb48f84 JA |
506 | if (f->io_size == -1ULL) |
507 | total_size = -1ULL; | |
508 | else | |
509 | total_size += f->io_size; | |
510 | ||
511 | if (f->filetype == FIO_TYPE_FILE && | |
bcdedd0a | 512 | (f->io_size + f->file_offset) > f->real_file_size && |
7bb48f84 JA |
513 | !(td->io_ops->flags & FIO_DISKLESSIO)) { |
514 | need_extend++; | |
bcdedd0a | 515 | extend_size += (f->io_size + f->file_offset); |
7bb48f84 | 516 | f->flags |= FIO_FILE_EXTEND; |
5ec10eaa | 517 | } |
7bb48f84 | 518 | } |
53cdc686 | 519 | |
2298290e | 520 | if (!td->o.size || td->o.size > total_size) |
7bb48f84 | 521 | td->o.size = total_size; |
21972cde | 522 | |
7bb48f84 JA |
523 | /* |
524 | * See if we need to extend some files | |
525 | */ | |
526 | if (need_extend) { | |
527 | temp_stall_ts = 1; | |
f627d8ae | 528 | log_info("%s: Laying out IO file(s) (%u file(s) / %LuMiB)\n", |
7bb48f84 JA |
529 | td->o.name, need_extend, extend_size >> 20); |
530 | ||
531 | for_each_file(td, f, i) { | |
532 | if (!(f->flags & FIO_FILE_EXTEND)) | |
533 | continue; | |
534 | ||
409b3417 | 535 | assert(f->filetype == FIO_TYPE_FILE); |
7bb48f84 | 536 | f->flags &= ~FIO_FILE_EXTEND; |
bcdedd0a | 537 | f->real_file_size = (f->io_size + f->file_offset); |
7bb48f84 JA |
538 | err = extend_file(td, f); |
539 | if (err) | |
540 | break; | |
541 | } | |
542 | temp_stall_ts = 0; | |
543 | } | |
544 | ||
545 | if (err) | |
546 | return err; | |
547 | ||
548 | if (!td->o.zone_size) | |
549 | td->o.zone_size = td->o.size; | |
550 | ||
ea966f81 JA |
551 | /* |
552 | * iolog already set the total io size, if we read back | |
553 | * stored entries. | |
554 | */ | |
555 | if (!td->o.read_iolog_file) | |
556 | td->total_io_size = td->o.size * td->o.loops; | |
7bb48f84 | 557 | return 0; |
bcdedd0a YHJT |
558 | err_offset: |
559 | log_err("%s: you need to specify valid offset=\n", td->o.name); | |
560 | return 1; | |
53cdc686 JA |
561 | } |
562 | ||
68727076 JA |
563 | int init_random_map(struct thread_data *td) |
564 | { | |
509eab12 | 565 | unsigned long long blocks, num_maps; |
68727076 JA |
566 | struct fio_file *f; |
567 | unsigned int i; | |
568 | ||
de8dd119 | 569 | if (td->o.norandommap || !td_random(td)) |
68727076 JA |
570 | return 0; |
571 | ||
572 | for_each_file(td, f, i) { | |
5ec10eaa JA |
573 | blocks = (f->real_file_size + td->o.rw_min_bs - 1) / |
574 | (unsigned long long) td->o.rw_min_bs; | |
575 | num_maps = (blocks + BLOCKS_PER_MAP - 1) / | |
576 | (unsigned long long) BLOCKS_PER_MAP; | |
f17c4392 | 577 | f->file_map = smalloc(num_maps * sizeof(long)); |
303032ae JA |
578 | if (f->file_map) { |
579 | f->num_maps = num_maps; | |
580 | continue; | |
68727076 | 581 | } |
2b386d25 JA |
582 | if (!td->o.softrandommap) { |
583 | log_err("fio: failed allocating random map. If running" | |
584 | " a large number of jobs, try the 'norandommap'" | |
585 | " option or set 'softrandommap'. Or give" | |
586 | " a larger --alloc-size to fio.\n"); | |
587 | return 1; | |
588 | } | |
303032ae JA |
589 | |
590 | log_info("fio: file %s failed allocating random map. Running " | |
591 | "job without.\n", f->file_name); | |
592 | f->num_maps = 0; | |
68727076 JA |
593 | } |
594 | ||
595 | return 0; | |
596 | } | |
597 | ||
53cdc686 JA |
598 | void close_files(struct thread_data *td) |
599 | { | |
0ab8db89 | 600 | struct fio_file *f; |
af52b345 | 601 | unsigned int i; |
53cdc686 | 602 | |
24ffd2c2 JA |
603 | for_each_file(td, f, i) |
604 | td_io_close_file(td, f); | |
605 | } | |
606 | ||
607 | void close_and_free_files(struct thread_data *td) | |
608 | { | |
609 | struct fio_file *f; | |
610 | unsigned int i; | |
611 | ||
ee56ad50 JA |
612 | dprint(FD_FILE, "close files\n"); |
613 | ||
0ab8db89 | 614 | for_each_file(td, f, i) { |
ffdfabd4 JA |
615 | if (td->o.unlink && f->filetype == FIO_TYPE_FILE) { |
616 | dprint(FD_FILE, "free unlink %s\n", f->file_name); | |
132ad46d | 617 | unlink(f->file_name); |
ffdfabd4 | 618 | } |
bdb4e2e9 | 619 | |
b5af8293 | 620 | td_io_close_file(td, f); |
b3dc7f07 | 621 | |
f17c4392 | 622 | sfree(f->file_name); |
fa1da865 JA |
623 | f->file_name = NULL; |
624 | ||
c343981b | 625 | if (f->file_map) { |
f17c4392 | 626 | sfree(f->file_map); |
c343981b JA |
627 | f->file_map = NULL; |
628 | } | |
78d99e6a | 629 | sfree(f); |
53cdc686 | 630 | } |
b4a6a59a | 631 | |
2dc1bbeb | 632 | td->o.filename = NULL; |
cade3ef4 | 633 | free(td->files); |
9efef3c4 | 634 | td->files_index = 0; |
b4a6a59a | 635 | td->files = NULL; |
2dc1bbeb | 636 | td->o.nr_files = 0; |
53cdc686 | 637 | } |
af52b345 | 638 | |
e3bab463 | 639 | static void get_file_type(struct fio_file *f) |
af52b345 JA |
640 | { |
641 | struct stat sb; | |
642 | ||
66159828 JA |
643 | if (!strcmp(f->file_name, "-")) |
644 | f->filetype = FIO_TYPE_PIPE; | |
645 | else | |
646 | f->filetype = FIO_TYPE_FILE; | |
af52b345 | 647 | |
e3bab463 | 648 | if (!lstat(f->file_name, &sb)) { |
af52b345 JA |
649 | if (S_ISBLK(sb.st_mode)) |
650 | f->filetype = FIO_TYPE_BD; | |
651 | else if (S_ISCHR(sb.st_mode)) | |
652 | f->filetype = FIO_TYPE_CHAR; | |
b5605e9d JA |
653 | else if (S_ISFIFO(sb.st_mode)) |
654 | f->filetype = FIO_TYPE_PIPE; | |
af52b345 JA |
655 | } |
656 | } | |
657 | ||
f29b25a3 | 658 | int add_file(struct thread_data *td, const char *fname) |
af52b345 | 659 | { |
7b4e4fe5 | 660 | int cur_files = td->files_index; |
bd0ee748 | 661 | char file_name[PATH_MAX]; |
af52b345 | 662 | struct fio_file *f; |
bd0ee748 | 663 | int len = 0; |
af52b345 | 664 | |
ee56ad50 JA |
665 | dprint(FD_FILE, "add file %s\n", fname); |
666 | ||
f17c4392 | 667 | f = smalloc(sizeof(*f)); |
af52b345 | 668 | f->fd = -1; |
bd0ee748 | 669 | |
9efef3c4 | 670 | dprint(FD_FILE, "resize file array to %d files\n", cur_files + 1); |
126d65c6 | 671 | |
9efef3c4 | 672 | td->files = realloc(td->files, (cur_files + 1) * sizeof(f)); |
126d65c6 JA |
673 | td->files[cur_files] = f; |
674 | ||
07eb79df JA |
675 | /* |
676 | * init function, io engine may not be loaded yet | |
677 | */ | |
678 | if (td->io_ops && (td->io_ops->flags & FIO_DISKLESSIO)) | |
679 | f->real_file_size = -1ULL; | |
680 | ||
bd0ee748 JA |
681 | if (td->o.directory) |
682 | len = sprintf(file_name, "%s/", td->o.directory); | |
683 | ||
684 | sprintf(file_name + len, "%s", fname); | |
f17c4392 | 685 | f->file_name = smalloc_strdup(file_name); |
af52b345 | 686 | |
e3bab463 | 687 | get_file_type(f); |
af52b345 | 688 | |
4d4e80f2 JA |
689 | switch (td->o.file_lock_mode) { |
690 | case FILE_LOCK_NONE: | |
691 | break; | |
692 | case FILE_LOCK_READWRITE: | |
693 | f->lock = fio_mutex_rw_init(); | |
694 | break; | |
695 | case FILE_LOCK_EXCLUSIVE: | |
696 | f->lock = fio_mutex_init(1); | |
697 | break; | |
698 | default: | |
699 | log_err("fio: unknown lock mode: %d\n", td->o.file_lock_mode); | |
700 | assert(0); | |
701 | } | |
29c1349f | 702 | |
7b4e4fe5 | 703 | td->files_index++; |
1549441c JA |
704 | if (f->filetype == FIO_TYPE_FILE) |
705 | td->nr_normal_files++; | |
f29b25a3 | 706 | |
5ec10eaa JA |
707 | dprint(FD_FILE, "file %p \"%s\" added at %d\n", f, f->file_name, |
708 | cur_files); | |
9efef3c4 | 709 | |
f29b25a3 | 710 | return cur_files; |
af52b345 | 711 | } |
0ad920e7 JA |
712 | |
713 | void get_file(struct fio_file *f) | |
714 | { | |
8172fe97 | 715 | dprint(FD_FILE, "get file %s, ref=%d\n", f->file_name, f->references); |
97af62ce | 716 | assert(f->flags & FIO_FILE_OPEN); |
0ad920e7 JA |
717 | f->references++; |
718 | } | |
719 | ||
6977bcd0 | 720 | int put_file(struct thread_data *td, struct fio_file *f) |
0ad920e7 | 721 | { |
98e1ac4e | 722 | int f_ret = 0, ret = 0; |
6977bcd0 | 723 | |
8172fe97 | 724 | dprint(FD_FILE, "put file %s, ref=%d\n", f->file_name, f->references); |
ee56ad50 | 725 | |
0ad920e7 | 726 | if (!(f->flags & FIO_FILE_OPEN)) |
6977bcd0 | 727 | return 0; |
0ad920e7 JA |
728 | |
729 | assert(f->references); | |
730 | if (--f->references) | |
6977bcd0 | 731 | return 0; |
0ad920e7 | 732 | |
d424d4dd | 733 | if (should_fsync(td) && td->o.fsync_on_close) |
98e1ac4e | 734 | f_ret = fsync(f->fd); |
ebb1415f | 735 | |
0ad920e7 | 736 | if (td->io_ops->close_file) |
6977bcd0 | 737 | ret = td->io_ops->close_file(td, f); |
1020a139 | 738 | |
98e1ac4e JA |
739 | if (!ret) |
740 | ret = !f_ret; | |
741 | ||
0ad920e7 JA |
742 | td->nr_open_files--; |
743 | f->flags &= ~FIO_FILE_OPEN; | |
6977bcd0 | 744 | return ret; |
0ad920e7 | 745 | } |
bbf6b540 | 746 | |
4d4e80f2 | 747 | void lock_file(struct thread_data *td, struct fio_file *f, enum fio_ddir ddir) |
b2bd2bd9 | 748 | { |
4d4e80f2 JA |
749 | if (!f->lock || td->o.file_lock_mode == FILE_LOCK_NONE) |
750 | return; | |
29c1349f | 751 | |
4d4e80f2 JA |
752 | if (f->lock_owner == td && f->lock_batch--) |
753 | return; | |
754 | ||
755 | if (td->o.file_lock_mode == FILE_LOCK_READWRITE) { | |
756 | if (ddir == DDIR_READ) | |
757 | fio_mutex_down_read(f->lock); | |
758 | else | |
759 | fio_mutex_down_write(f->lock); | |
760 | } else if (td->o.file_lock_mode == FILE_LOCK_EXCLUSIVE) | |
761 | fio_mutex_down(f->lock); | |
762 | ||
763 | f->lock_owner = td; | |
764 | f->lock_batch = td->o.lockfile_batch; | |
765 | f->lock_ddir = ddir; | |
b2bd2bd9 JA |
766 | } |
767 | ||
4d4e80f2 | 768 | void unlock_file(struct thread_data *td, struct fio_file *f) |
b2bd2bd9 | 769 | { |
4d4e80f2 JA |
770 | if (!f->lock || td->o.file_lock_mode == FILE_LOCK_NONE) |
771 | return; | |
772 | if (f->lock_batch) | |
773 | return; | |
774 | ||
775 | if (td->o.file_lock_mode == FILE_LOCK_READWRITE) { | |
776 | const int is_read = f->lock_ddir == DDIR_READ; | |
777 | int val = fio_mutex_getval(f->lock); | |
29c1349f | 778 | |
4d4e80f2 JA |
779 | if ((is_read && val == 1) || (!is_read && val == -1)) |
780 | f->lock_owner = NULL; | |
29c1349f | 781 | |
4d4e80f2 JA |
782 | if (is_read) |
783 | fio_mutex_up_read(f->lock); | |
784 | else | |
785 | fio_mutex_up_write(f->lock); | |
786 | } else if (td->o.file_lock_mode == FILE_LOCK_EXCLUSIVE) { | |
787 | int val = fio_mutex_getval(f->lock); | |
788 | ||
789 | if (val == 0) | |
790 | f->lock_owner = NULL; | |
791 | ||
792 | fio_mutex_up(f->lock); | |
29c1349f | 793 | } |
b2bd2bd9 JA |
794 | } |
795 | ||
4d4e80f2 JA |
796 | void unlock_file_all(struct thread_data *td, struct fio_file *f) |
797 | { | |
798 | if (f->lock_owner != td) | |
799 | return; | |
800 | ||
801 | f->lock_batch = 0; | |
802 | unlock_file(td, f); | |
803 | } | |
804 | ||
bbf6b540 JA |
805 | static int recurse_dir(struct thread_data *td, const char *dirname) |
806 | { | |
807 | struct dirent *dir; | |
808 | int ret = 0; | |
809 | DIR *D; | |
810 | ||
811 | D = opendir(dirname); | |
812 | if (!D) { | |
0ddb270c JA |
813 | char buf[FIO_VERROR_SIZE]; |
814 | ||
815 | snprintf(buf, FIO_VERROR_SIZE - 1, "opendir(%s)", dirname); | |
816 | td_verror(td, errno, buf); | |
bbf6b540 JA |
817 | return 1; |
818 | } | |
819 | ||
820 | while ((dir = readdir(D)) != NULL) { | |
821 | char full_path[PATH_MAX]; | |
822 | struct stat sb; | |
823 | ||
e85b2b83 JA |
824 | if (!strcmp(dir->d_name, ".") || !strcmp(dir->d_name, "..")) |
825 | continue; | |
96d32d51 | 826 | |
bbf6b540 JA |
827 | sprintf(full_path, "%s/%s", dirname, dir->d_name); |
828 | ||
829 | if (lstat(full_path, &sb) == -1) { | |
830 | if (errno != ENOENT) { | |
831 | td_verror(td, errno, "stat"); | |
832 | return 1; | |
833 | } | |
834 | } | |
835 | ||
836 | if (S_ISREG(sb.st_mode)) { | |
837 | add_file(td, full_path); | |
2dc1bbeb | 838 | td->o.nr_files++; |
bbf6b540 JA |
839 | continue; |
840 | } | |
0ddb270c JA |
841 | if (!S_ISDIR(sb.st_mode)) |
842 | continue; | |
bbf6b540 | 843 | |
5ec10eaa JA |
844 | ret = recurse_dir(td, full_path); |
845 | if (ret) | |
bbf6b540 JA |
846 | break; |
847 | } | |
848 | ||
849 | closedir(D); | |
850 | return ret; | |
851 | } | |
852 | ||
853 | int add_dir_files(struct thread_data *td, const char *path) | |
854 | { | |
0ddb270c JA |
855 | int ret = recurse_dir(td, path); |
856 | ||
857 | if (!ret) | |
858 | log_info("fio: opendir added %d files\n", td->o.nr_files); | |
859 | ||
860 | return ret; | |
bbf6b540 | 861 | } |
cade3ef4 JA |
862 | |
863 | void dup_files(struct thread_data *td, struct thread_data *org) | |
864 | { | |
865 | struct fio_file *f; | |
866 | unsigned int i; | |
9efef3c4 JA |
867 | |
868 | dprint(FD_FILE, "dup files: %d\n", org->files_index); | |
cade3ef4 JA |
869 | |
870 | if (!org->files) | |
871 | return; | |
872 | ||
9efef3c4 | 873 | td->files = malloc(org->files_index * sizeof(f)); |
cade3ef4 | 874 | |
9efef3c4 | 875 | for_each_file(org, f, i) { |
b0fe421a JA |
876 | struct fio_file *__f; |
877 | ||
f17c4392 | 878 | __f = smalloc(sizeof(*__f)); |
b0fe421a | 879 | |
cade3ef4 | 880 | if (f->file_name) |
f17c4392 | 881 | __f->file_name = smalloc_strdup(f->file_name); |
b0fe421a JA |
882 | |
883 | td->files[i] = __f; | |
cade3ef4 JA |
884 | } |
885 | } | |
f29b25a3 JA |
886 | |
887 | /* | |
888 | * Returns the index that matches the filename, or -1 if not there | |
889 | */ | |
890 | int get_fileno(struct thread_data *td, const char *fname) | |
891 | { | |
892 | struct fio_file *f; | |
893 | unsigned int i; | |
894 | ||
895 | for_each_file(td, f, i) | |
896 | if (!strcmp(f->file_name, fname)) | |
897 | return i; | |
898 | ||
899 | return -1; | |
900 | } | |
901 | ||
902 | /* | |
903 | * For log usage, where we add/open/close files automatically | |
904 | */ | |
905 | void free_release_files(struct thread_data *td) | |
906 | { | |
907 | close_files(td); | |
908 | td->files_index = 0; | |
909 | td->nr_normal_files = 0; | |
910 | } |