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 | ||
7ab077ab JA |
159 | if (!bytes) { |
160 | log_err("%s: zero sized block device?\n", f->file_name); | |
161 | return 1; | |
162 | } | |
163 | ||
53cdc686 | 164 | f->real_file_size = bytes; |
53cdc686 JA |
165 | return 0; |
166 | } | |
167 | ||
168 | static int get_file_size(struct thread_data *td, struct fio_file *f) | |
169 | { | |
170 | int ret = 0; | |
171 | ||
409b3417 JA |
172 | if (f->flags & FIO_SIZE_KNOWN) |
173 | return 0; | |
174 | ||
7bb48f84 JA |
175 | if (f->filetype == FIO_TYPE_FILE) |
176 | ret = file_size(td, f); | |
177 | else if (f->filetype == FIO_TYPE_BD) | |
53cdc686 JA |
178 | ret = bdev_size(td, f); |
179 | else | |
180 | f->real_file_size = -1; | |
181 | ||
182 | if (ret) | |
183 | return ret; | |
184 | ||
185 | if (f->file_offset > f->real_file_size) { | |
5ec10eaa JA |
186 | log_err("%s: offset extends end (%Lu > %Lu)\n", td->o.name, |
187 | f->file_offset, f->real_file_size); | |
53cdc686 JA |
188 | return 1; |
189 | } | |
190 | ||
409b3417 | 191 | f->flags |= FIO_SIZE_KNOWN; |
53cdc686 JA |
192 | return 0; |
193 | } | |
194 | ||
3baddf24 JA |
195 | static int __file_invalidate_cache(struct thread_data *td, struct fio_file *f, |
196 | unsigned long long off, | |
197 | unsigned long long len) | |
e5b401d4 JA |
198 | { |
199 | int ret = 0; | |
200 | ||
3baddf24 JA |
201 | if (len == -1ULL) |
202 | len = f->io_size; | |
203 | if (off == -1ULL) | |
204 | off = f->file_offset; | |
ee56ad50 | 205 | |
3baddf24 JA |
206 | dprint(FD_IO, "invalidate cache %s: %llu/%llu\n", f->file_name, off, |
207 | len); | |
b5af8293 | 208 | |
e5b401d4 JA |
209 | /* |
210 | * FIXME: add blockdev flushing too | |
211 | */ | |
b5af8293 | 212 | if (f->mmap) |
3baddf24 | 213 | ret = madvise(f->mmap, len, MADV_DONTNEED); |
5ec10eaa | 214 | else if (f->filetype == FIO_TYPE_FILE) { |
3baddf24 | 215 | ret = fadvise(f->fd, off, len, POSIX_FADV_DONTNEED); |
5ec10eaa | 216 | } else if (f->filetype == FIO_TYPE_BD) { |
b5af8293 | 217 | ret = blockdev_invalidate_cache(f->fd); |
7e0e25c9 | 218 | if (ret < 0 && errno == EACCES && geteuid()) { |
7172cfe8 | 219 | if (!root_warn) { |
5ec10eaa JA |
220 | log_err("fio: only root may flush block " |
221 | "devices. Cache flush bypassed!\n"); | |
7172cfe8 JA |
222 | root_warn = 1; |
223 | } | |
7e0e25c9 JA |
224 | ret = 0; |
225 | } | |
b5605e9d | 226 | } else if (f->filetype == FIO_TYPE_CHAR || f->filetype == FIO_TYPE_PIPE) |
e5b401d4 JA |
227 | ret = 0; |
228 | ||
229 | if (ret < 0) { | |
e1161c32 | 230 | td_verror(td, errno, "invalidate_cache"); |
e5b401d4 | 231 | return 1; |
3baddf24 JA |
232 | } else if (ret > 0) { |
233 | td_verror(td, ret, "invalidate_cache"); | |
234 | return 1; | |
e5b401d4 JA |
235 | } |
236 | ||
ad2da605 | 237 | return ret; |
3baddf24 JA |
238 | |
239 | } | |
240 | ||
241 | int file_invalidate_cache(struct thread_data *td, struct fio_file *f) | |
242 | { | |
a5fb461f JA |
243 | if (!(f->flags & FIO_FILE_OPEN)) |
244 | return 0; | |
245 | ||
3baddf24 | 246 | return __file_invalidate_cache(td, f, -1, -1); |
e5b401d4 JA |
247 | } |
248 | ||
6977bcd0 | 249 | int generic_close_file(struct thread_data fio_unused *td, struct fio_file *f) |
53cdc686 | 250 | { |
6977bcd0 JA |
251 | int ret = 0; |
252 | ||
ee56ad50 | 253 | dprint(FD_FILE, "fd close %s\n", f->file_name); |
4906e0b5 JA |
254 | |
255 | remove_file_hash(f); | |
256 | ||
6977bcd0 JA |
257 | if (close(f->fd) < 0) |
258 | ret = errno; | |
259 | ||
b5af8293 | 260 | f->fd = -1; |
6977bcd0 | 261 | return ret; |
53cdc686 JA |
262 | } |
263 | ||
4d4e80f2 | 264 | static int file_lookup_open(struct fio_file *f, int flags) |
53cdc686 | 265 | { |
29c1349f | 266 | struct fio_file *__f; |
4d4e80f2 JA |
267 | int from_hash; |
268 | ||
269 | __f = lookup_file_hash(f->file_name); | |
270 | if (__f) { | |
9efef3c4 | 271 | dprint(FD_FILE, "found file in hash %s\n", f->file_name); |
4d4e80f2 JA |
272 | /* |
273 | * racy, need the __f->lock locked | |
274 | */ | |
275 | f->lock = __f->lock; | |
276 | f->lock_owner = __f->lock_owner; | |
277 | f->lock_batch = __f->lock_batch; | |
278 | f->lock_ddir = __f->lock_ddir; | |
4d4e80f2 JA |
279 | from_hash = 1; |
280 | } else { | |
9efef3c4 | 281 | dprint(FD_FILE, "file not found in hash %s\n", f->file_name); |
4d4e80f2 JA |
282 | from_hash = 0; |
283 | } | |
284 | ||
e8670ef8 | 285 | f->fd = open(f->file_name, flags, 0600); |
4d4e80f2 JA |
286 | return from_hash; |
287 | } | |
288 | ||
289 | int generic_open_file(struct thread_data *td, struct fio_file *f) | |
290 | { | |
66159828 | 291 | int is_std = 0; |
53cdc686 | 292 | int flags = 0; |
29c1349f | 293 | int from_hash = 0; |
53cdc686 | 294 | |
ee56ad50 JA |
295 | dprint(FD_FILE, "fd open %s\n", f->file_name); |
296 | ||
66159828 JA |
297 | if (!strcmp(f->file_name, "-")) { |
298 | if (td_rw(td)) { | |
299 | log_err("fio: can't read/write to stdin/out\n"); | |
300 | return 1; | |
301 | } | |
302 | is_std = 1; | |
ce98fa66 JA |
303 | |
304 | /* | |
305 | * move output logging to stderr, if we are writing to stdout | |
306 | */ | |
307 | if (td_write(td)) | |
308 | f_out = stderr; | |
66159828 JA |
309 | } |
310 | ||
2dc1bbeb | 311 | if (td->o.odirect) |
2fd233b7 | 312 | flags |= OS_O_DIRECT; |
2dc1bbeb | 313 | if (td->o.sync_io) |
2fd233b7 | 314 | flags |= O_SYNC; |
ad92396c | 315 | if (f->filetype != FIO_TYPE_FILE) |
5921e80c | 316 | flags |= FIO_O_NOATIME; |
814452bd JA |
317 | if (td->o.create_on_open) |
318 | flags |= O_CREAT; | |
53cdc686 | 319 | |
056f3459 | 320 | open_again: |
660a1cb5 | 321 | if (td_write(td)) { |
17308158 JA |
322 | if (!read_only) |
323 | flags |= O_RDWR; | |
53cdc686 | 324 | |
af52b345 | 325 | if (f->filetype == FIO_TYPE_FILE) |
2fd233b7 | 326 | flags |= O_CREAT; |
2fd233b7 | 327 | |
66159828 JA |
328 | if (is_std) |
329 | f->fd = dup(STDOUT_FILENO); | |
4d4e80f2 JA |
330 | else |
331 | from_hash = file_lookup_open(f, flags); | |
2fd233b7 | 332 | } else { |
4241ea8f | 333 | if (f->filetype == FIO_TYPE_CHAR && !read_only) |
2fd233b7 JA |
334 | flags |= O_RDWR; |
335 | else | |
336 | flags |= O_RDONLY; | |
337 | ||
66159828 JA |
338 | if (is_std) |
339 | f->fd = dup(STDIN_FILENO); | |
4d4e80f2 JA |
340 | else |
341 | from_hash = file_lookup_open(f, flags); | |
53cdc686 JA |
342 | } |
343 | ||
344 | if (f->fd == -1) { | |
e4e33258 | 345 | char buf[FIO_VERROR_SIZE]; |
e1161c32 JA |
346 | int __e = errno; |
347 | ||
5921e80c JA |
348 | if (errno == EPERM && (flags & FIO_O_NOATIME)) { |
349 | flags &= ~FIO_O_NOATIME; | |
056f3459 AC |
350 | goto open_again; |
351 | } | |
352 | ||
e8670ef8 | 353 | snprintf(buf, sizeof(buf) - 1, "open(%s)", f->file_name); |
e4e33258 JA |
354 | |
355 | td_verror(td, __e, buf); | |
53cdc686 JA |
356 | } |
357 | ||
b5af8293 JA |
358 | if (get_file_size(td, f)) |
359 | goto err; | |
360 | ||
29c1349f JA |
361 | if (!from_hash && f->fd != -1) { |
362 | if (add_file_hash(f)) { | |
363 | int ret; | |
364 | ||
365 | /* | |
366 | * OK to ignore, we haven't done anything with it | |
367 | */ | |
368 | ret = generic_close_file(td, f); | |
369 | goto open_again; | |
370 | } | |
371 | } | |
4906e0b5 | 372 | |
53cdc686 | 373 | return 0; |
b5af8293 JA |
374 | err: |
375 | close(f->fd); | |
376 | return 1; | |
377 | } | |
378 | ||
21972cde JA |
379 | int open_files(struct thread_data *td) |
380 | { | |
381 | struct fio_file *f; | |
af52b345 JA |
382 | unsigned int i; |
383 | int err = 0; | |
21972cde | 384 | |
ee56ad50 JA |
385 | dprint(FD_FILE, "open files\n"); |
386 | ||
21972cde | 387 | for_each_file(td, f, i) { |
b5af8293 | 388 | err = td_io_open_file(td, f); |
9bf27b45 JA |
389 | if (err) { |
390 | if (td->error == EMFILE) { | |
5ec10eaa JA |
391 | log_err("fio: limited open files to: %d\n", |
392 | td->nr_open_files); | |
9bf27b45 JA |
393 | td->o.open_files = td->nr_open_files; |
394 | err = 0; | |
395 | clear_error(td); | |
396 | } | |
21972cde | 397 | break; |
9bf27b45 | 398 | } |
b5af8293 | 399 | |
2dc1bbeb | 400 | if (td->o.open_files == td->nr_open_files) |
b5af8293 | 401 | break; |
21972cde JA |
402 | } |
403 | ||
7abf833d JA |
404 | if (!err) |
405 | return 0; | |
406 | ||
bdb4e2e9 | 407 | for_each_file(td, f, i) |
b5af8293 | 408 | td_io_close_file(td, f); |
7abf833d | 409 | |
21972cde JA |
410 | return err; |
411 | } | |
412 | ||
7bb48f84 JA |
413 | /* |
414 | * open/close all files, so that ->real_file_size gets set | |
415 | */ | |
bab3fd58 | 416 | static int get_file_sizes(struct thread_data *td) |
7bb48f84 JA |
417 | { |
418 | struct fio_file *f; | |
419 | unsigned int i; | |
bab3fd58 | 420 | int err = 0; |
7bb48f84 JA |
421 | |
422 | for_each_file(td, f, i) { | |
5ec10eaa JA |
423 | dprint(FD_FILE, "get file size for %p/%d/%p\n", f, i, |
424 | f->file_name); | |
9efef3c4 | 425 | |
bab3fd58 | 426 | if (td->io_ops->open_file(td, f)) { |
40b44f4a JA |
427 | if (td->error != ENOENT) { |
428 | log_err("%s\n", td->verror); | |
429 | err = 1; | |
430 | } | |
541d66d7 | 431 | clear_error(td); |
07eb79df JA |
432 | } else { |
433 | if (td->io_ops->close_file) | |
434 | td->io_ops->close_file(td, f); | |
435 | } | |
409b3417 JA |
436 | |
437 | if (f->real_file_size == -1ULL && td->o.size) | |
438 | f->real_file_size = td->o.size / td->o.nr_files; | |
7bb48f84 | 439 | } |
bab3fd58 JA |
440 | |
441 | return err; | |
7bb48f84 JA |
442 | } |
443 | ||
444 | /* | |
445 | * Open the files and setup files sizes, creating files if necessary. | |
446 | */ | |
53cdc686 JA |
447 | int setup_files(struct thread_data *td) |
448 | { | |
7bb48f84 | 449 | unsigned long long total_size, extend_size; |
53cdc686 | 450 | struct fio_file *f; |
af52b345 | 451 | unsigned int i; |
000b0803 | 452 | int err = 0, need_extend; |
53cdc686 | 453 | |
ee56ad50 JA |
454 | dprint(FD_FILE, "setup files\n"); |
455 | ||
691c8fb0 JA |
456 | if (td->o.read_iolog_file) |
457 | return 0; | |
458 | ||
53cdc686 JA |
459 | /* |
460 | * if ioengine defines a setup() method, it's responsible for | |
7bb48f84 JA |
461 | * opening the files and setting f->real_file_size to indicate |
462 | * the valid range for that file. | |
53cdc686 JA |
463 | */ |
464 | if (td->io_ops->setup) | |
7bb48f84 JA |
465 | err = td->io_ops->setup(td); |
466 | else | |
bab3fd58 | 467 | err = get_file_sizes(td); |
53cdc686 | 468 | |
f1027063 JA |
469 | if (err) |
470 | return err; | |
471 | ||
0a7eb121 | 472 | /* |
7bb48f84 JA |
473 | * check sizes. if the files/devices do not exist and the size |
474 | * isn't passed to fio, abort. | |
0a7eb121 | 475 | */ |
7bb48f84 JA |
476 | total_size = 0; |
477 | for_each_file(td, f, i) { | |
478 | if (f->real_file_size == -1ULL) | |
479 | total_size = -1ULL; | |
480 | else | |
481 | total_size += f->real_file_size; | |
482 | } | |
0a7eb121 | 483 | |
7bb48f84 JA |
484 | /* |
485 | * device/file sizes are zero and no size given, punt | |
486 | */ | |
1f809d15 | 487 | if ((!total_size || total_size == -1ULL) && !td->o.size && |
aa31f1f1 | 488 | !(td->io_ops->flags & FIO_NOIO) && !td->o.fill_device) { |
7bb48f84 | 489 | log_err("%s: you need to specify size=\n", td->o.name); |
e1161c32 | 490 | td_verror(td, EINVAL, "total_file_size"); |
53cdc686 JA |
491 | return 1; |
492 | } | |
493 | ||
7bb48f84 JA |
494 | /* |
495 | * now file sizes are known, so we can set ->io_size. if size= is | |
496 | * not given, ->io_size is just equal to ->real_file_size. if size | |
497 | * is given, ->io_size is size / nr_files. | |
498 | */ | |
499 | extend_size = total_size = 0; | |
500 | need_extend = 0; | |
501 | for_each_file(td, f, i) { | |
bcdedd0a YHJT |
502 | f->file_offset = td->o.start_offset; |
503 | ||
7bb48f84 JA |
504 | if (!td->o.file_size_low) { |
505 | /* | |
506 | * no file size range given, file size is equal to | |
507 | * total size divided by number of files. if that is | |
508 | * zero, set it to the real file size. | |
509 | */ | |
510 | f->io_size = td->o.size / td->o.nr_files; | |
65bdb10a | 511 | if (!f->io_size) |
273f8c91 | 512 | f->io_size = f->real_file_size - f->file_offset; |
7bb48f84 JA |
513 | } else if (f->real_file_size < td->o.file_size_low || |
514 | f->real_file_size > td->o.file_size_high) { | |
5ec10eaa | 515 | if (f->file_offset > td->o.file_size_low) |
bcdedd0a | 516 | goto err_offset; |
7bb48f84 JA |
517 | /* |
518 | * file size given. if it's fixed, use that. if it's a | |
519 | * range, generate a random size in-between. | |
520 | */ | |
5ec10eaa JA |
521 | if (td->o.file_size_low == td->o.file_size_high) { |
522 | f->io_size = td->o.file_size_low | |
523 | - f->file_offset; | |
524 | } else { | |
525 | f->io_size = get_rand_file_size(td) | |
526 | - f->file_offset; | |
527 | } | |
65bdb10a | 528 | } else |
bcdedd0a | 529 | f->io_size = f->real_file_size - f->file_offset; |
53cdc686 | 530 | |
7bb48f84 JA |
531 | if (f->io_size == -1ULL) |
532 | total_size = -1ULL; | |
533 | else | |
534 | total_size += f->io_size; | |
535 | ||
536 | if (f->filetype == FIO_TYPE_FILE && | |
bcdedd0a | 537 | (f->io_size + f->file_offset) > f->real_file_size && |
7bb48f84 | 538 | !(td->io_ops->flags & FIO_DISKLESSIO)) { |
814452bd JA |
539 | if (!td->o.create_on_open) { |
540 | need_extend++; | |
541 | extend_size += (f->io_size + f->file_offset); | |
542 | } else | |
543 | f->real_file_size = f->io_size + f->file_offset; | |
7bb48f84 | 544 | f->flags |= FIO_FILE_EXTEND; |
5ec10eaa | 545 | } |
7bb48f84 | 546 | } |
53cdc686 | 547 | |
2298290e | 548 | if (!td->o.size || td->o.size > total_size) |
7bb48f84 | 549 | td->o.size = total_size; |
21972cde | 550 | |
7bb48f84 JA |
551 | /* |
552 | * See if we need to extend some files | |
553 | */ | |
554 | if (need_extend) { | |
555 | temp_stall_ts = 1; | |
a7ba8c5f SSY |
556 | if (!terse_output) |
557 | log_info("%s: Laying out IO file(s) (%u file(s) /" | |
558 | " %LuMiB)\n", td->o.name, need_extend, | |
559 | extend_size >> 20); | |
7bb48f84 JA |
560 | |
561 | for_each_file(td, f, i) { | |
3baddf24 JA |
562 | unsigned long long old_len, extend_len; |
563 | ||
7bb48f84 JA |
564 | if (!(f->flags & FIO_FILE_EXTEND)) |
565 | continue; | |
566 | ||
409b3417 | 567 | assert(f->filetype == FIO_TYPE_FILE); |
7bb48f84 | 568 | f->flags &= ~FIO_FILE_EXTEND; |
3baddf24 JA |
569 | old_len = f->real_file_size; |
570 | extend_len = f->io_size + f->file_offset - old_len; | |
bcdedd0a | 571 | f->real_file_size = (f->io_size + f->file_offset); |
7bb48f84 JA |
572 | err = extend_file(td, f); |
573 | if (err) | |
3baddf24 JA |
574 | break; |
575 | ||
576 | err = __file_invalidate_cache(td, f, old_len, | |
577 | extend_len); | |
578 | close(f->fd); | |
579 | f->fd = -1; | |
580 | if (err) | |
7bb48f84 JA |
581 | break; |
582 | } | |
583 | temp_stall_ts = 0; | |
584 | } | |
585 | ||
586 | if (err) | |
587 | return err; | |
588 | ||
589 | if (!td->o.zone_size) | |
590 | td->o.zone_size = td->o.size; | |
591 | ||
ea966f81 JA |
592 | /* |
593 | * iolog already set the total io size, if we read back | |
594 | * stored entries. | |
595 | */ | |
596 | if (!td->o.read_iolog_file) | |
597 | td->total_io_size = td->o.size * td->o.loops; | |
7bb48f84 | 598 | return 0; |
bcdedd0a YHJT |
599 | err_offset: |
600 | log_err("%s: you need to specify valid offset=\n", td->o.name); | |
601 | return 1; | |
53cdc686 JA |
602 | } |
603 | ||
68727076 JA |
604 | int init_random_map(struct thread_data *td) |
605 | { | |
509eab12 | 606 | unsigned long long blocks, num_maps; |
68727076 JA |
607 | struct fio_file *f; |
608 | unsigned int i; | |
609 | ||
de8dd119 | 610 | if (td->o.norandommap || !td_random(td)) |
68727076 JA |
611 | return 0; |
612 | ||
613 | for_each_file(td, f, i) { | |
5ec10eaa JA |
614 | blocks = (f->real_file_size + td->o.rw_min_bs - 1) / |
615 | (unsigned long long) td->o.rw_min_bs; | |
616 | num_maps = (blocks + BLOCKS_PER_MAP - 1) / | |
617 | (unsigned long long) BLOCKS_PER_MAP; | |
de605666 | 618 | f->file_map = smalloc(num_maps * sizeof(int)); |
303032ae JA |
619 | if (f->file_map) { |
620 | f->num_maps = num_maps; | |
621 | continue; | |
68727076 | 622 | } |
2b386d25 | 623 | if (!td->o.softrandommap) { |
5ec10eaa JA |
624 | log_err("fio: failed allocating random map. If running" |
625 | " a large number of jobs, try the 'norandommap'" | |
2b386d25 JA |
626 | " option or set 'softrandommap'. Or give" |
627 | " a larger --alloc-size to fio.\n"); | |
68727076 JA |
628 | return 1; |
629 | } | |
303032ae JA |
630 | |
631 | log_info("fio: file %s failed allocating random map. Running " | |
632 | "job without.\n", f->file_name); | |
633 | f->num_maps = 0; | |
68727076 JA |
634 | } |
635 | ||
636 | return 0; | |
637 | } | |
638 | ||
53cdc686 JA |
639 | void close_files(struct thread_data *td) |
640 | { | |
0ab8db89 | 641 | struct fio_file *f; |
af52b345 | 642 | unsigned int i; |
53cdc686 | 643 | |
24ffd2c2 JA |
644 | for_each_file(td, f, i) |
645 | td_io_close_file(td, f); | |
646 | } | |
647 | ||
648 | void close_and_free_files(struct thread_data *td) | |
649 | { | |
650 | struct fio_file *f; | |
651 | unsigned int i; | |
652 | ||
ee56ad50 JA |
653 | dprint(FD_FILE, "close files\n"); |
654 | ||
0ab8db89 | 655 | for_each_file(td, f, i) { |
ffdfabd4 JA |
656 | if (td->o.unlink && f->filetype == FIO_TYPE_FILE) { |
657 | dprint(FD_FILE, "free unlink %s\n", f->file_name); | |
132ad46d | 658 | unlink(f->file_name); |
ffdfabd4 | 659 | } |
bdb4e2e9 | 660 | |
b5af8293 | 661 | td_io_close_file(td, f); |
b9fbcf21 | 662 | remove_file_hash(f); |
b3dc7f07 | 663 | |
f17c4392 | 664 | sfree(f->file_name); |
fa1da865 JA |
665 | f->file_name = NULL; |
666 | ||
c343981b | 667 | if (f->file_map) { |
f17c4392 | 668 | sfree(f->file_map); |
c343981b JA |
669 | f->file_map = NULL; |
670 | } | |
78d99e6a | 671 | sfree(f); |
53cdc686 | 672 | } |
b4a6a59a | 673 | |
2dc1bbeb | 674 | td->o.filename = NULL; |
cade3ef4 | 675 | free(td->files); |
9efef3c4 | 676 | td->files_index = 0; |
b4a6a59a | 677 | td->files = NULL; |
2dc1bbeb | 678 | td->o.nr_files = 0; |
53cdc686 | 679 | } |
af52b345 | 680 | |
e3bab463 | 681 | static void get_file_type(struct fio_file *f) |
af52b345 JA |
682 | { |
683 | struct stat sb; | |
684 | ||
66159828 JA |
685 | if (!strcmp(f->file_name, "-")) |
686 | f->filetype = FIO_TYPE_PIPE; | |
687 | else | |
688 | f->filetype = FIO_TYPE_FILE; | |
af52b345 | 689 | |
e3bab463 | 690 | if (!lstat(f->file_name, &sb)) { |
af52b345 JA |
691 | if (S_ISBLK(sb.st_mode)) |
692 | f->filetype = FIO_TYPE_BD; | |
693 | else if (S_ISCHR(sb.st_mode)) | |
694 | f->filetype = FIO_TYPE_CHAR; | |
b5605e9d JA |
695 | else if (S_ISFIFO(sb.st_mode)) |
696 | f->filetype = FIO_TYPE_PIPE; | |
af52b345 JA |
697 | } |
698 | } | |
699 | ||
f29b25a3 | 700 | int add_file(struct thread_data *td, const char *fname) |
af52b345 | 701 | { |
7b4e4fe5 | 702 | int cur_files = td->files_index; |
bd0ee748 | 703 | char file_name[PATH_MAX]; |
af52b345 | 704 | struct fio_file *f; |
bd0ee748 | 705 | int len = 0; |
af52b345 | 706 | |
ee56ad50 JA |
707 | dprint(FD_FILE, "add file %s\n", fname); |
708 | ||
f17c4392 | 709 | f = smalloc(sizeof(*f)); |
c48c0be7 JA |
710 | if (!f) { |
711 | log_err("fio: smalloc OOM\n"); | |
712 | assert(0); | |
713 | } | |
714 | ||
af52b345 | 715 | f->fd = -1; |
bd0ee748 | 716 | |
fc99bc0d JA |
717 | if (td->files_size <= td->files_index) { |
718 | int new_size = td->o.nr_files; | |
126d65c6 | 719 | |
fc99bc0d JA |
720 | dprint(FD_FILE, "resize file array to %d files\n", new_size); |
721 | ||
722 | td->files = realloc(td->files, new_size * sizeof(f)); | |
fc99bc0d JA |
723 | td->files_size = new_size; |
724 | } | |
8bb7679e | 725 | td->files[cur_files] = f; |
126d65c6 | 726 | |
07eb79df JA |
727 | /* |
728 | * init function, io engine may not be loaded yet | |
729 | */ | |
730 | if (td->io_ops && (td->io_ops->flags & FIO_DISKLESSIO)) | |
731 | f->real_file_size = -1ULL; | |
732 | ||
bd0ee748 JA |
733 | if (td->o.directory) |
734 | len = sprintf(file_name, "%s/", td->o.directory); | |
735 | ||
736 | sprintf(file_name + len, "%s", fname); | |
f17c4392 | 737 | f->file_name = smalloc_strdup(file_name); |
c48c0be7 JA |
738 | if (!f->file_name) { |
739 | log_err("fio: smalloc OOM\n"); | |
740 | assert(0); | |
741 | } | |
742 | ||
e3bab463 | 743 | get_file_type(f); |
af52b345 | 744 | |
4d4e80f2 JA |
745 | switch (td->o.file_lock_mode) { |
746 | case FILE_LOCK_NONE: | |
747 | break; | |
748 | case FILE_LOCK_READWRITE: | |
749 | f->lock = fio_mutex_rw_init(); | |
750 | break; | |
751 | case FILE_LOCK_EXCLUSIVE: | |
752 | f->lock = fio_mutex_init(1); | |
753 | break; | |
754 | default: | |
755 | log_err("fio: unknown lock mode: %d\n", td->o.file_lock_mode); | |
756 | assert(0); | |
757 | } | |
29c1349f | 758 | |
7b4e4fe5 | 759 | td->files_index++; |
1549441c JA |
760 | if (f->filetype == FIO_TYPE_FILE) |
761 | td->nr_normal_files++; | |
f29b25a3 | 762 | |
5ec10eaa JA |
763 | dprint(FD_FILE, "file %p \"%s\" added at %d\n", f, f->file_name, |
764 | cur_files); | |
9efef3c4 | 765 | |
f29b25a3 | 766 | return cur_files; |
af52b345 | 767 | } |
0ad920e7 JA |
768 | |
769 | void get_file(struct fio_file *f) | |
770 | { | |
8172fe97 | 771 | dprint(FD_FILE, "get file %s, ref=%d\n", f->file_name, f->references); |
97af62ce | 772 | assert(f->flags & FIO_FILE_OPEN); |
0ad920e7 JA |
773 | f->references++; |
774 | } | |
775 | ||
6977bcd0 | 776 | int put_file(struct thread_data *td, struct fio_file *f) |
0ad920e7 | 777 | { |
98e1ac4e | 778 | int f_ret = 0, ret = 0; |
6977bcd0 | 779 | |
8172fe97 | 780 | dprint(FD_FILE, "put file %s, ref=%d\n", f->file_name, f->references); |
ee56ad50 | 781 | |
0ad920e7 | 782 | if (!(f->flags & FIO_FILE_OPEN)) |
6977bcd0 | 783 | return 0; |
0ad920e7 JA |
784 | |
785 | assert(f->references); | |
786 | if (--f->references) | |
6977bcd0 | 787 | return 0; |
0ad920e7 | 788 | |
d424d4dd | 789 | if (should_fsync(td) && td->o.fsync_on_close) |
98e1ac4e | 790 | f_ret = fsync(f->fd); |
ebb1415f | 791 | |
0ad920e7 | 792 | if (td->io_ops->close_file) |
6977bcd0 | 793 | ret = td->io_ops->close_file(td, f); |
1020a139 | 794 | |
98e1ac4e | 795 | if (!ret) |
a5fb461f | 796 | ret = f_ret; |
98e1ac4e | 797 | |
0ad920e7 JA |
798 | td->nr_open_files--; |
799 | f->flags &= ~FIO_FILE_OPEN; | |
6977bcd0 | 800 | return ret; |
0ad920e7 | 801 | } |
bbf6b540 | 802 | |
4d4e80f2 | 803 | void lock_file(struct thread_data *td, struct fio_file *f, enum fio_ddir ddir) |
b2bd2bd9 | 804 | { |
4d4e80f2 JA |
805 | if (!f->lock || td->o.file_lock_mode == FILE_LOCK_NONE) |
806 | return; | |
29c1349f | 807 | |
4d4e80f2 JA |
808 | if (f->lock_owner == td && f->lock_batch--) |
809 | return; | |
810 | ||
811 | if (td->o.file_lock_mode == FILE_LOCK_READWRITE) { | |
812 | if (ddir == DDIR_READ) | |
813 | fio_mutex_down_read(f->lock); | |
814 | else | |
815 | fio_mutex_down_write(f->lock); | |
816 | } else if (td->o.file_lock_mode == FILE_LOCK_EXCLUSIVE) | |
817 | fio_mutex_down(f->lock); | |
818 | ||
819 | f->lock_owner = td; | |
820 | f->lock_batch = td->o.lockfile_batch; | |
821 | f->lock_ddir = ddir; | |
b2bd2bd9 JA |
822 | } |
823 | ||
4d4e80f2 | 824 | void unlock_file(struct thread_data *td, struct fio_file *f) |
b2bd2bd9 | 825 | { |
4d4e80f2 JA |
826 | if (!f->lock || td->o.file_lock_mode == FILE_LOCK_NONE) |
827 | return; | |
828 | if (f->lock_batch) | |
829 | return; | |
830 | ||
831 | if (td->o.file_lock_mode == FILE_LOCK_READWRITE) { | |
832 | const int is_read = f->lock_ddir == DDIR_READ; | |
833 | int val = fio_mutex_getval(f->lock); | |
29c1349f | 834 | |
4d4e80f2 JA |
835 | if ((is_read && val == 1) || (!is_read && val == -1)) |
836 | f->lock_owner = NULL; | |
29c1349f | 837 | |
4d4e80f2 JA |
838 | if (is_read) |
839 | fio_mutex_up_read(f->lock); | |
840 | else | |
841 | fio_mutex_up_write(f->lock); | |
842 | } else if (td->o.file_lock_mode == FILE_LOCK_EXCLUSIVE) { | |
843 | int val = fio_mutex_getval(f->lock); | |
844 | ||
845 | if (val == 0) | |
846 | f->lock_owner = NULL; | |
847 | ||
848 | fio_mutex_up(f->lock); | |
29c1349f | 849 | } |
b2bd2bd9 JA |
850 | } |
851 | ||
4d4e80f2 JA |
852 | void unlock_file_all(struct thread_data *td, struct fio_file *f) |
853 | { | |
854 | if (f->lock_owner != td) | |
855 | return; | |
856 | ||
857 | f->lock_batch = 0; | |
858 | unlock_file(td, f); | |
859 | } | |
860 | ||
bbf6b540 JA |
861 | static int recurse_dir(struct thread_data *td, const char *dirname) |
862 | { | |
863 | struct dirent *dir; | |
864 | int ret = 0; | |
865 | DIR *D; | |
866 | ||
867 | D = opendir(dirname); | |
868 | if (!D) { | |
0ddb270c JA |
869 | char buf[FIO_VERROR_SIZE]; |
870 | ||
871 | snprintf(buf, FIO_VERROR_SIZE - 1, "opendir(%s)", dirname); | |
872 | td_verror(td, errno, buf); | |
bbf6b540 JA |
873 | return 1; |
874 | } | |
875 | ||
876 | while ((dir = readdir(D)) != NULL) { | |
877 | char full_path[PATH_MAX]; | |
878 | struct stat sb; | |
879 | ||
e85b2b83 JA |
880 | if (!strcmp(dir->d_name, ".") || !strcmp(dir->d_name, "..")) |
881 | continue; | |
96d32d51 | 882 | |
bbf6b540 JA |
883 | sprintf(full_path, "%s/%s", dirname, dir->d_name); |
884 | ||
885 | if (lstat(full_path, &sb) == -1) { | |
886 | if (errno != ENOENT) { | |
887 | td_verror(td, errno, "stat"); | |
888 | return 1; | |
889 | } | |
890 | } | |
891 | ||
892 | if (S_ISREG(sb.st_mode)) { | |
893 | add_file(td, full_path); | |
2dc1bbeb | 894 | td->o.nr_files++; |
bbf6b540 JA |
895 | continue; |
896 | } | |
0ddb270c JA |
897 | if (!S_ISDIR(sb.st_mode)) |
898 | continue; | |
bbf6b540 | 899 | |
5ec10eaa JA |
900 | ret = recurse_dir(td, full_path); |
901 | if (ret) | |
bbf6b540 JA |
902 | break; |
903 | } | |
904 | ||
905 | closedir(D); | |
906 | return ret; | |
907 | } | |
908 | ||
909 | int add_dir_files(struct thread_data *td, const char *path) | |
910 | { | |
0ddb270c JA |
911 | int ret = recurse_dir(td, path); |
912 | ||
913 | if (!ret) | |
914 | log_info("fio: opendir added %d files\n", td->o.nr_files); | |
915 | ||
916 | return ret; | |
bbf6b540 | 917 | } |
cade3ef4 JA |
918 | |
919 | void dup_files(struct thread_data *td, struct thread_data *org) | |
920 | { | |
921 | struct fio_file *f; | |
922 | unsigned int i; | |
9efef3c4 JA |
923 | |
924 | dprint(FD_FILE, "dup files: %d\n", org->files_index); | |
cade3ef4 JA |
925 | |
926 | if (!org->files) | |
927 | return; | |
928 | ||
9efef3c4 | 929 | td->files = malloc(org->files_index * sizeof(f)); |
cade3ef4 | 930 | |
9efef3c4 | 931 | for_each_file(org, f, i) { |
b0fe421a JA |
932 | struct fio_file *__f; |
933 | ||
f17c4392 | 934 | __f = smalloc(sizeof(*__f)); |
c48c0be7 JA |
935 | if (!__f) { |
936 | log_err("fio: smalloc OOM\n"); | |
937 | assert(0); | |
938 | } | |
939 | ||
bc3456fa | 940 | if (f->file_name) { |
f17c4392 | 941 | __f->file_name = smalloc_strdup(f->file_name); |
c48c0be7 JA |
942 | if (!__f->file_name) { |
943 | log_err("fio: smalloc OOM\n"); | |
944 | assert(0); | |
945 | } | |
946 | ||
bc3456fa AC |
947 | __f->filetype = f->filetype; |
948 | } | |
b0fe421a JA |
949 | |
950 | td->files[i] = __f; | |
cade3ef4 JA |
951 | } |
952 | } | |
f29b25a3 JA |
953 | |
954 | /* | |
955 | * Returns the index that matches the filename, or -1 if not there | |
956 | */ | |
957 | int get_fileno(struct thread_data *td, const char *fname) | |
958 | { | |
959 | struct fio_file *f; | |
960 | unsigned int i; | |
961 | ||
962 | for_each_file(td, f, i) | |
963 | if (!strcmp(f->file_name, fname)) | |
964 | return i; | |
965 | ||
966 | return -1; | |
967 | } | |
968 | ||
969 | /* | |
970 | * For log usage, where we add/open/close files automatically | |
971 | */ | |
972 | void free_release_files(struct thread_data *td) | |
973 | { | |
974 | close_files(td); | |
975 | td->files_index = 0; | |
976 | td->nr_normal_files = 0; | |
977 | } |