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 | ||
ee56ad50 JA |
71 | dprint(FD_FILE, "fallocate file %s, size %llu\n", f->file_name, |
72 | f->real_file_size); | |
7bb48f84 | 73 | if (posix_fallocate(f->fd, 0, f->real_file_size) < 0) { |
e1161c32 | 74 | td_verror(td, errno, "posix_fallocate"); |
40f8298c JA |
75 | goto err; |
76 | } | |
77 | ||
2dc1bbeb JA |
78 | b = malloc(td->o.max_bs[DDIR_WRITE]); |
79 | memset(b, 0, td->o.max_bs[DDIR_WRITE]); | |
53cdc686 | 80 | |
7bb48f84 | 81 | left = f->real_file_size; |
53cdc686 | 82 | while (left && !td->terminate) { |
2dc1bbeb | 83 | bs = td->o.max_bs[DDIR_WRITE]; |
53cdc686 JA |
84 | if (bs > left) |
85 | bs = left; | |
86 | ||
87 | r = write(f->fd, b, bs); | |
88 | ||
89 | if (r == (int) bs) { | |
90 | left -= bs; | |
91 | continue; | |
92 | } else { | |
93 | if (r < 0) | |
e1161c32 | 94 | td_verror(td, errno, "write"); |
53cdc686 | 95 | else |
e1161c32 | 96 | td_verror(td, EIO, "write"); |
53cdc686 JA |
97 | |
98 | break; | |
99 | } | |
100 | } | |
101 | ||
ffdfabd4 JA |
102 | if (td->terminate) { |
103 | dprint(FD_FILE, "terminate unlink %s\n", f->file_name); | |
53cdc686 | 104 | unlink(f->file_name); |
ffdfabd4 | 105 | } else if (td->o.create_fsync) { |
98e1ac4e JA |
106 | if (fsync(f->fd) < 0) { |
107 | td_verror(td, errno, "fsync"); | |
108 | goto err; | |
109 | } | |
110 | } | |
53cdc686 JA |
111 | |
112 | free(b); | |
507a702f | 113 | done: |
53cdc686 JA |
114 | return 0; |
115 | err: | |
116 | close(f->fd); | |
117 | f->fd = -1; | |
118 | return 1; | |
119 | } | |
120 | ||
7bb48f84 | 121 | static unsigned long long get_rand_file_size(struct thread_data *td) |
9c60ce64 | 122 | { |
5ec10eaa | 123 | unsigned long long ret, size_d; |
9c60ce64 JA |
124 | long r; |
125 | ||
9c60ce64 | 126 | r = os_random_long(&td->file_size_state); |
5ec10eaa JA |
127 | size_d = td->o.file_size_high - td->o.file_size_low; |
128 | ret = (unsigned long long) ((double) size_d * (r / (RAND_MAX + 1.0))); | |
129 | ret += td->o.file_size_low; | |
2dc1bbeb | 130 | ret -= (ret % td->o.rw_min_bs); |
9c60ce64 JA |
131 | return ret; |
132 | } | |
133 | ||
53cdc686 JA |
134 | static int file_size(struct thread_data *td, struct fio_file *f) |
135 | { | |
136 | struct stat st; | |
137 | ||
7bb48f84 JA |
138 | if (fstat(f->fd, &st) == -1) { |
139 | td_verror(td, errno, "fstat"); | |
140 | return 1; | |
141 | } | |
53cdc686 | 142 | |
7bb48f84 | 143 | f->real_file_size = st.st_size; |
53cdc686 JA |
144 | return 0; |
145 | } | |
146 | ||
147 | static int bdev_size(struct thread_data *td, struct fio_file *f) | |
148 | { | |
149 | unsigned long long bytes; | |
150 | int r; | |
151 | ||
152 | r = blockdev_size(f->fd, &bytes); | |
153 | if (r) { | |
e1161c32 | 154 | td_verror(td, r, "blockdev_size"); |
53cdc686 JA |
155 | return 1; |
156 | } | |
157 | ||
158 | f->real_file_size = bytes; | |
53cdc686 JA |
159 | return 0; |
160 | } | |
161 | ||
162 | static int get_file_size(struct thread_data *td, struct fio_file *f) | |
163 | { | |
164 | int ret = 0; | |
165 | ||
409b3417 JA |
166 | if (f->flags & FIO_SIZE_KNOWN) |
167 | return 0; | |
168 | ||
7bb48f84 JA |
169 | if (f->filetype == FIO_TYPE_FILE) |
170 | ret = file_size(td, f); | |
171 | else if (f->filetype == FIO_TYPE_BD) | |
53cdc686 JA |
172 | ret = bdev_size(td, f); |
173 | else | |
174 | f->real_file_size = -1; | |
175 | ||
176 | if (ret) | |
177 | return ret; | |
178 | ||
179 | if (f->file_offset > f->real_file_size) { | |
5ec10eaa JA |
180 | log_err("%s: offset extends end (%Lu > %Lu)\n", td->o.name, |
181 | f->file_offset, f->real_file_size); | |
53cdc686 JA |
182 | return 1; |
183 | } | |
184 | ||
409b3417 | 185 | f->flags |= FIO_SIZE_KNOWN; |
53cdc686 JA |
186 | return 0; |
187 | } | |
188 | ||
3baddf24 JA |
189 | static int __file_invalidate_cache(struct thread_data *td, struct fio_file *f, |
190 | unsigned long long off, | |
191 | unsigned long long len) | |
e5b401d4 JA |
192 | { |
193 | int ret = 0; | |
194 | ||
3baddf24 JA |
195 | if (len == -1ULL) |
196 | len = f->io_size; | |
197 | if (off == -1ULL) | |
198 | off = f->file_offset; | |
ee56ad50 | 199 | |
3baddf24 JA |
200 | dprint(FD_IO, "invalidate cache %s: %llu/%llu\n", f->file_name, off, |
201 | len); | |
b5af8293 | 202 | |
e5b401d4 JA |
203 | /* |
204 | * FIXME: add blockdev flushing too | |
205 | */ | |
b5af8293 | 206 | if (f->mmap) |
3baddf24 | 207 | ret = madvise(f->mmap, len, MADV_DONTNEED); |
5ec10eaa | 208 | else if (f->filetype == FIO_TYPE_FILE) { |
3baddf24 | 209 | ret = fadvise(f->fd, off, len, POSIX_FADV_DONTNEED); |
5ec10eaa | 210 | } else if (f->filetype == FIO_TYPE_BD) { |
b5af8293 | 211 | ret = blockdev_invalidate_cache(f->fd); |
7e0e25c9 | 212 | if (ret < 0 && errno == EACCES && geteuid()) { |
7172cfe8 | 213 | if (!root_warn) { |
5ec10eaa JA |
214 | log_err("fio: only root may flush block " |
215 | "devices. Cache flush bypassed!\n"); | |
7172cfe8 JA |
216 | root_warn = 1; |
217 | } | |
7e0e25c9 JA |
218 | ret = 0; |
219 | } | |
b5605e9d | 220 | } else if (f->filetype == FIO_TYPE_CHAR || f->filetype == FIO_TYPE_PIPE) |
e5b401d4 JA |
221 | ret = 0; |
222 | ||
223 | if (ret < 0) { | |
e1161c32 | 224 | td_verror(td, errno, "invalidate_cache"); |
e5b401d4 | 225 | return 1; |
3baddf24 JA |
226 | } else if (ret > 0) { |
227 | td_verror(td, ret, "invalidate_cache"); | |
228 | return 1; | |
e5b401d4 JA |
229 | } |
230 | ||
ad2da605 | 231 | return ret; |
3baddf24 JA |
232 | |
233 | } | |
234 | ||
235 | int file_invalidate_cache(struct thread_data *td, struct fio_file *f) | |
236 | { | |
a5fb461f JA |
237 | if (!(f->flags & FIO_FILE_OPEN)) |
238 | return 0; | |
239 | ||
3baddf24 | 240 | return __file_invalidate_cache(td, f, -1, -1); |
e5b401d4 JA |
241 | } |
242 | ||
6977bcd0 | 243 | int generic_close_file(struct thread_data fio_unused *td, struct fio_file *f) |
53cdc686 | 244 | { |
6977bcd0 JA |
245 | int ret = 0; |
246 | ||
ee56ad50 | 247 | dprint(FD_FILE, "fd close %s\n", f->file_name); |
4906e0b5 JA |
248 | |
249 | remove_file_hash(f); | |
250 | ||
6977bcd0 JA |
251 | if (close(f->fd) < 0) |
252 | ret = errno; | |
253 | ||
b5af8293 | 254 | f->fd = -1; |
6977bcd0 | 255 | return ret; |
53cdc686 JA |
256 | } |
257 | ||
4d4e80f2 | 258 | static int file_lookup_open(struct fio_file *f, int flags) |
53cdc686 | 259 | { |
29c1349f | 260 | struct fio_file *__f; |
4d4e80f2 JA |
261 | int from_hash; |
262 | ||
263 | __f = lookup_file_hash(f->file_name); | |
264 | if (__f) { | |
9efef3c4 | 265 | dprint(FD_FILE, "found file in hash %s\n", f->file_name); |
4d4e80f2 JA |
266 | /* |
267 | * racy, need the __f->lock locked | |
268 | */ | |
269 | f->lock = __f->lock; | |
270 | f->lock_owner = __f->lock_owner; | |
271 | f->lock_batch = __f->lock_batch; | |
272 | f->lock_ddir = __f->lock_ddir; | |
4d4e80f2 JA |
273 | from_hash = 1; |
274 | } else { | |
9efef3c4 | 275 | dprint(FD_FILE, "file not found in hash %s\n", f->file_name); |
4d4e80f2 JA |
276 | from_hash = 0; |
277 | } | |
278 | ||
e8670ef8 | 279 | f->fd = open(f->file_name, flags, 0600); |
4d4e80f2 JA |
280 | return from_hash; |
281 | } | |
282 | ||
283 | int generic_open_file(struct thread_data *td, struct fio_file *f) | |
284 | { | |
66159828 | 285 | int is_std = 0; |
53cdc686 | 286 | int flags = 0; |
29c1349f | 287 | int from_hash = 0; |
53cdc686 | 288 | |
ee56ad50 JA |
289 | dprint(FD_FILE, "fd open %s\n", f->file_name); |
290 | ||
66159828 JA |
291 | if (!strcmp(f->file_name, "-")) { |
292 | if (td_rw(td)) { | |
293 | log_err("fio: can't read/write to stdin/out\n"); | |
294 | return 1; | |
295 | } | |
296 | is_std = 1; | |
ce98fa66 JA |
297 | |
298 | /* | |
299 | * move output logging to stderr, if we are writing to stdout | |
300 | */ | |
301 | if (td_write(td)) | |
302 | f_out = stderr; | |
66159828 JA |
303 | } |
304 | ||
2dc1bbeb | 305 | if (td->o.odirect) |
2fd233b7 | 306 | flags |= OS_O_DIRECT; |
2dc1bbeb | 307 | if (td->o.sync_io) |
2fd233b7 | 308 | flags |= O_SYNC; |
ad92396c | 309 | if (f->filetype != FIO_TYPE_FILE) |
5921e80c | 310 | flags |= FIO_O_NOATIME; |
53cdc686 | 311 | |
056f3459 | 312 | open_again: |
660a1cb5 | 313 | if (td_write(td)) { |
17308158 JA |
314 | if (!read_only) |
315 | flags |= O_RDWR; | |
53cdc686 | 316 | |
af52b345 | 317 | if (f->filetype == FIO_TYPE_FILE) |
2fd233b7 | 318 | flags |= O_CREAT; |
2fd233b7 | 319 | |
66159828 JA |
320 | if (is_std) |
321 | f->fd = dup(STDOUT_FILENO); | |
4d4e80f2 JA |
322 | else |
323 | from_hash = file_lookup_open(f, flags); | |
2fd233b7 | 324 | } else { |
4241ea8f | 325 | if (f->filetype == FIO_TYPE_CHAR && !read_only) |
2fd233b7 JA |
326 | flags |= O_RDWR; |
327 | else | |
328 | flags |= O_RDONLY; | |
329 | ||
66159828 JA |
330 | if (is_std) |
331 | f->fd = dup(STDIN_FILENO); | |
4d4e80f2 JA |
332 | else |
333 | from_hash = file_lookup_open(f, flags); | |
53cdc686 JA |
334 | } |
335 | ||
336 | if (f->fd == -1) { | |
e4e33258 | 337 | char buf[FIO_VERROR_SIZE]; |
e1161c32 JA |
338 | int __e = errno; |
339 | ||
5921e80c JA |
340 | if (errno == EPERM && (flags & FIO_O_NOATIME)) { |
341 | flags &= ~FIO_O_NOATIME; | |
056f3459 AC |
342 | goto open_again; |
343 | } | |
344 | ||
e8670ef8 | 345 | snprintf(buf, sizeof(buf) - 1, "open(%s)", f->file_name); |
e4e33258 JA |
346 | |
347 | td_verror(td, __e, buf); | |
53cdc686 JA |
348 | } |
349 | ||
b5af8293 JA |
350 | if (get_file_size(td, f)) |
351 | goto err; | |
352 | ||
29c1349f JA |
353 | if (!from_hash && f->fd != -1) { |
354 | if (add_file_hash(f)) { | |
355 | int ret; | |
356 | ||
357 | /* | |
358 | * OK to ignore, we haven't done anything with it | |
359 | */ | |
360 | ret = generic_close_file(td, f); | |
361 | goto open_again; | |
362 | } | |
363 | } | |
4906e0b5 | 364 | |
53cdc686 | 365 | return 0; |
b5af8293 JA |
366 | err: |
367 | close(f->fd); | |
368 | return 1; | |
369 | } | |
370 | ||
21972cde JA |
371 | int open_files(struct thread_data *td) |
372 | { | |
373 | struct fio_file *f; | |
af52b345 JA |
374 | unsigned int i; |
375 | int err = 0; | |
21972cde | 376 | |
ee56ad50 JA |
377 | dprint(FD_FILE, "open files\n"); |
378 | ||
21972cde | 379 | for_each_file(td, f, i) { |
b5af8293 | 380 | err = td_io_open_file(td, f); |
9bf27b45 JA |
381 | if (err) { |
382 | if (td->error == EMFILE) { | |
5ec10eaa JA |
383 | log_err("fio: limited open files to: %d\n", |
384 | td->nr_open_files); | |
9bf27b45 JA |
385 | td->o.open_files = td->nr_open_files; |
386 | err = 0; | |
387 | clear_error(td); | |
388 | } | |
21972cde | 389 | break; |
9bf27b45 | 390 | } |
b5af8293 | 391 | |
2dc1bbeb | 392 | if (td->o.open_files == td->nr_open_files) |
b5af8293 | 393 | break; |
21972cde JA |
394 | } |
395 | ||
7abf833d JA |
396 | if (!err) |
397 | return 0; | |
398 | ||
bdb4e2e9 | 399 | for_each_file(td, f, i) |
b5af8293 | 400 | td_io_close_file(td, f); |
7abf833d | 401 | |
21972cde JA |
402 | return err; |
403 | } | |
404 | ||
7bb48f84 JA |
405 | /* |
406 | * open/close all files, so that ->real_file_size gets set | |
407 | */ | |
bab3fd58 | 408 | static int get_file_sizes(struct thread_data *td) |
7bb48f84 JA |
409 | { |
410 | struct fio_file *f; | |
411 | unsigned int i; | |
bab3fd58 | 412 | int err = 0; |
7bb48f84 JA |
413 | |
414 | for_each_file(td, f, i) { | |
5ec10eaa JA |
415 | dprint(FD_FILE, "get file size for %p/%d/%p\n", f, i, |
416 | f->file_name); | |
9efef3c4 | 417 | |
bab3fd58 | 418 | if (td->io_ops->open_file(td, f)) { |
40b44f4a JA |
419 | if (td->error != ENOENT) { |
420 | log_err("%s\n", td->verror); | |
421 | err = 1; | |
422 | } | |
541d66d7 | 423 | clear_error(td); |
07eb79df JA |
424 | } else { |
425 | if (td->io_ops->close_file) | |
426 | td->io_ops->close_file(td, f); | |
427 | } | |
409b3417 JA |
428 | |
429 | if (f->real_file_size == -1ULL && td->o.size) | |
430 | f->real_file_size = td->o.size / td->o.nr_files; | |
7bb48f84 | 431 | } |
bab3fd58 JA |
432 | |
433 | return err; | |
7bb48f84 JA |
434 | } |
435 | ||
436 | /* | |
437 | * Open the files and setup files sizes, creating files if necessary. | |
438 | */ | |
53cdc686 JA |
439 | int setup_files(struct thread_data *td) |
440 | { | |
7bb48f84 | 441 | unsigned long long total_size, extend_size; |
53cdc686 | 442 | struct fio_file *f; |
af52b345 | 443 | unsigned int i; |
000b0803 | 444 | int err = 0, need_extend; |
53cdc686 | 445 | |
ee56ad50 JA |
446 | dprint(FD_FILE, "setup files\n"); |
447 | ||
691c8fb0 JA |
448 | if (td->o.read_iolog_file) |
449 | return 0; | |
450 | ||
53cdc686 JA |
451 | /* |
452 | * if ioengine defines a setup() method, it's responsible for | |
7bb48f84 JA |
453 | * opening the files and setting f->real_file_size to indicate |
454 | * the valid range for that file. | |
53cdc686 JA |
455 | */ |
456 | if (td->io_ops->setup) | |
7bb48f84 JA |
457 | err = td->io_ops->setup(td); |
458 | else | |
bab3fd58 | 459 | err = get_file_sizes(td); |
53cdc686 | 460 | |
f1027063 JA |
461 | if (err) |
462 | return err; | |
463 | ||
0a7eb121 | 464 | /* |
7bb48f84 JA |
465 | * check sizes. if the files/devices do not exist and the size |
466 | * isn't passed to fio, abort. | |
0a7eb121 | 467 | */ |
7bb48f84 JA |
468 | total_size = 0; |
469 | for_each_file(td, f, i) { | |
470 | if (f->real_file_size == -1ULL) | |
471 | total_size = -1ULL; | |
472 | else | |
473 | total_size += f->real_file_size; | |
474 | } | |
0a7eb121 | 475 | |
7bb48f84 JA |
476 | /* |
477 | * device/file sizes are zero and no size given, punt | |
478 | */ | |
1f809d15 | 479 | if ((!total_size || total_size == -1ULL) && !td->o.size && |
aa31f1f1 | 480 | !(td->io_ops->flags & FIO_NOIO) && !td->o.fill_device) { |
7bb48f84 | 481 | log_err("%s: you need to specify size=\n", td->o.name); |
e1161c32 | 482 | td_verror(td, EINVAL, "total_file_size"); |
53cdc686 JA |
483 | return 1; |
484 | } | |
485 | ||
7bb48f84 JA |
486 | /* |
487 | * now file sizes are known, so we can set ->io_size. if size= is | |
488 | * not given, ->io_size is just equal to ->real_file_size. if size | |
489 | * is given, ->io_size is size / nr_files. | |
490 | */ | |
491 | extend_size = total_size = 0; | |
492 | need_extend = 0; | |
493 | for_each_file(td, f, i) { | |
bcdedd0a YHJT |
494 | f->file_offset = td->o.start_offset; |
495 | ||
7bb48f84 JA |
496 | if (!td->o.file_size_low) { |
497 | /* | |
498 | * no file size range given, file size is equal to | |
499 | * total size divided by number of files. if that is | |
500 | * zero, set it to the real file size. | |
501 | */ | |
502 | f->io_size = td->o.size / td->o.nr_files; | |
65bdb10a | 503 | if (!f->io_size) |
273f8c91 | 504 | f->io_size = f->real_file_size - f->file_offset; |
7bb48f84 JA |
505 | } else if (f->real_file_size < td->o.file_size_low || |
506 | f->real_file_size > td->o.file_size_high) { | |
5ec10eaa | 507 | if (f->file_offset > td->o.file_size_low) |
bcdedd0a | 508 | goto err_offset; |
7bb48f84 JA |
509 | /* |
510 | * file size given. if it's fixed, use that. if it's a | |
511 | * range, generate a random size in-between. | |
512 | */ | |
5ec10eaa JA |
513 | if (td->o.file_size_low == td->o.file_size_high) { |
514 | f->io_size = td->o.file_size_low | |
515 | - f->file_offset; | |
516 | } else { | |
517 | f->io_size = get_rand_file_size(td) | |
518 | - f->file_offset; | |
519 | } | |
65bdb10a | 520 | } else |
bcdedd0a | 521 | f->io_size = f->real_file_size - f->file_offset; |
53cdc686 | 522 | |
7bb48f84 JA |
523 | if (f->io_size == -1ULL) |
524 | total_size = -1ULL; | |
525 | else | |
526 | total_size += f->io_size; | |
527 | ||
528 | if (f->filetype == FIO_TYPE_FILE && | |
bcdedd0a | 529 | (f->io_size + f->file_offset) > f->real_file_size && |
7bb48f84 JA |
530 | !(td->io_ops->flags & FIO_DISKLESSIO)) { |
531 | need_extend++; | |
bcdedd0a | 532 | extend_size += (f->io_size + f->file_offset); |
7bb48f84 | 533 | f->flags |= FIO_FILE_EXTEND; |
5ec10eaa | 534 | } |
7bb48f84 | 535 | } |
53cdc686 | 536 | |
2298290e | 537 | if (!td->o.size || td->o.size > total_size) |
7bb48f84 | 538 | td->o.size = total_size; |
21972cde | 539 | |
7bb48f84 JA |
540 | /* |
541 | * See if we need to extend some files | |
542 | */ | |
543 | if (need_extend) { | |
544 | temp_stall_ts = 1; | |
f627d8ae | 545 | log_info("%s: Laying out IO file(s) (%u file(s) / %LuMiB)\n", |
7bb48f84 JA |
546 | td->o.name, need_extend, extend_size >> 20); |
547 | ||
548 | for_each_file(td, f, i) { | |
3baddf24 JA |
549 | unsigned long long old_len, extend_len; |
550 | ||
7bb48f84 JA |
551 | if (!(f->flags & FIO_FILE_EXTEND)) |
552 | continue; | |
553 | ||
409b3417 | 554 | assert(f->filetype == FIO_TYPE_FILE); |
7bb48f84 | 555 | f->flags &= ~FIO_FILE_EXTEND; |
3baddf24 JA |
556 | old_len = f->real_file_size; |
557 | extend_len = f->io_size + f->file_offset - old_len; | |
bcdedd0a | 558 | f->real_file_size = (f->io_size + f->file_offset); |
7bb48f84 JA |
559 | err = extend_file(td, f); |
560 | if (err) | |
3baddf24 JA |
561 | break; |
562 | ||
563 | err = __file_invalidate_cache(td, f, old_len, | |
564 | extend_len); | |
565 | close(f->fd); | |
566 | f->fd = -1; | |
567 | if (err) | |
7bb48f84 JA |
568 | break; |
569 | } | |
570 | temp_stall_ts = 0; | |
571 | } | |
572 | ||
573 | if (err) | |
574 | return err; | |
575 | ||
576 | if (!td->o.zone_size) | |
577 | td->o.zone_size = td->o.size; | |
578 | ||
ea966f81 JA |
579 | /* |
580 | * iolog already set the total io size, if we read back | |
581 | * stored entries. | |
582 | */ | |
583 | if (!td->o.read_iolog_file) | |
584 | td->total_io_size = td->o.size * td->o.loops; | |
7bb48f84 | 585 | return 0; |
bcdedd0a YHJT |
586 | err_offset: |
587 | log_err("%s: you need to specify valid offset=\n", td->o.name); | |
588 | return 1; | |
53cdc686 JA |
589 | } |
590 | ||
68727076 JA |
591 | int init_random_map(struct thread_data *td) |
592 | { | |
509eab12 | 593 | unsigned long long blocks, num_maps; |
68727076 JA |
594 | struct fio_file *f; |
595 | unsigned int i; | |
596 | ||
de8dd119 | 597 | if (td->o.norandommap || !td_random(td)) |
68727076 JA |
598 | return 0; |
599 | ||
600 | for_each_file(td, f, i) { | |
5ec10eaa JA |
601 | blocks = (f->real_file_size + td->o.rw_min_bs - 1) / |
602 | (unsigned long long) td->o.rw_min_bs; | |
603 | num_maps = (blocks + BLOCKS_PER_MAP - 1) / | |
604 | (unsigned long long) BLOCKS_PER_MAP; | |
f17c4392 | 605 | f->file_map = smalloc(num_maps * sizeof(long)); |
303032ae JA |
606 | if (f->file_map) { |
607 | f->num_maps = num_maps; | |
608 | continue; | |
68727076 | 609 | } |
2b386d25 | 610 | if (!td->o.softrandommap) { |
5ec10eaa JA |
611 | log_err("fio: failed allocating random map. If running" |
612 | " a large number of jobs, try the 'norandommap'" | |
2b386d25 JA |
613 | " option or set 'softrandommap'. Or give" |
614 | " a larger --alloc-size to fio.\n"); | |
68727076 JA |
615 | return 1; |
616 | } | |
303032ae JA |
617 | |
618 | log_info("fio: file %s failed allocating random map. Running " | |
619 | "job without.\n", f->file_name); | |
620 | f->num_maps = 0; | |
68727076 JA |
621 | } |
622 | ||
623 | return 0; | |
624 | } | |
625 | ||
53cdc686 JA |
626 | void close_files(struct thread_data *td) |
627 | { | |
0ab8db89 | 628 | struct fio_file *f; |
af52b345 | 629 | unsigned int i; |
53cdc686 | 630 | |
24ffd2c2 JA |
631 | for_each_file(td, f, i) |
632 | td_io_close_file(td, f); | |
633 | } | |
634 | ||
635 | void close_and_free_files(struct thread_data *td) | |
636 | { | |
637 | struct fio_file *f; | |
638 | unsigned int i; | |
639 | ||
ee56ad50 JA |
640 | dprint(FD_FILE, "close files\n"); |
641 | ||
0ab8db89 | 642 | for_each_file(td, f, i) { |
ffdfabd4 JA |
643 | if (td->o.unlink && f->filetype == FIO_TYPE_FILE) { |
644 | dprint(FD_FILE, "free unlink %s\n", f->file_name); | |
132ad46d | 645 | unlink(f->file_name); |
ffdfabd4 | 646 | } |
bdb4e2e9 | 647 | |
b5af8293 | 648 | td_io_close_file(td, f); |
b3dc7f07 | 649 | |
f17c4392 | 650 | sfree(f->file_name); |
fa1da865 JA |
651 | f->file_name = NULL; |
652 | ||
c343981b | 653 | if (f->file_map) { |
f17c4392 | 654 | sfree(f->file_map); |
c343981b JA |
655 | f->file_map = NULL; |
656 | } | |
78d99e6a | 657 | sfree(f); |
53cdc686 | 658 | } |
b4a6a59a | 659 | |
2dc1bbeb | 660 | td->o.filename = NULL; |
cade3ef4 | 661 | free(td->files); |
9efef3c4 | 662 | td->files_index = 0; |
b4a6a59a | 663 | td->files = NULL; |
2dc1bbeb | 664 | td->o.nr_files = 0; |
53cdc686 | 665 | } |
af52b345 | 666 | |
e3bab463 | 667 | static void get_file_type(struct fio_file *f) |
af52b345 JA |
668 | { |
669 | struct stat sb; | |
670 | ||
66159828 JA |
671 | if (!strcmp(f->file_name, "-")) |
672 | f->filetype = FIO_TYPE_PIPE; | |
673 | else | |
674 | f->filetype = FIO_TYPE_FILE; | |
af52b345 | 675 | |
e3bab463 | 676 | if (!lstat(f->file_name, &sb)) { |
af52b345 JA |
677 | if (S_ISBLK(sb.st_mode)) |
678 | f->filetype = FIO_TYPE_BD; | |
679 | else if (S_ISCHR(sb.st_mode)) | |
680 | f->filetype = FIO_TYPE_CHAR; | |
b5605e9d JA |
681 | else if (S_ISFIFO(sb.st_mode)) |
682 | f->filetype = FIO_TYPE_PIPE; | |
af52b345 JA |
683 | } |
684 | } | |
685 | ||
f29b25a3 | 686 | int add_file(struct thread_data *td, const char *fname) |
af52b345 | 687 | { |
7b4e4fe5 | 688 | int cur_files = td->files_index; |
bd0ee748 | 689 | char file_name[PATH_MAX]; |
af52b345 | 690 | struct fio_file *f; |
bd0ee748 | 691 | int len = 0; |
af52b345 | 692 | |
ee56ad50 JA |
693 | dprint(FD_FILE, "add file %s\n", fname); |
694 | ||
f17c4392 | 695 | f = smalloc(sizeof(*f)); |
af52b345 | 696 | f->fd = -1; |
bd0ee748 | 697 | |
9efef3c4 | 698 | dprint(FD_FILE, "resize file array to %d files\n", cur_files + 1); |
126d65c6 | 699 | |
9efef3c4 | 700 | td->files = realloc(td->files, (cur_files + 1) * sizeof(f)); |
126d65c6 JA |
701 | td->files[cur_files] = f; |
702 | ||
07eb79df JA |
703 | /* |
704 | * init function, io engine may not be loaded yet | |
705 | */ | |
706 | if (td->io_ops && (td->io_ops->flags & FIO_DISKLESSIO)) | |
707 | f->real_file_size = -1ULL; | |
708 | ||
bd0ee748 JA |
709 | if (td->o.directory) |
710 | len = sprintf(file_name, "%s/", td->o.directory); | |
711 | ||
712 | sprintf(file_name + len, "%s", fname); | |
f17c4392 | 713 | f->file_name = smalloc_strdup(file_name); |
af52b345 | 714 | |
e3bab463 | 715 | get_file_type(f); |
af52b345 | 716 | |
4d4e80f2 JA |
717 | switch (td->o.file_lock_mode) { |
718 | case FILE_LOCK_NONE: | |
719 | break; | |
720 | case FILE_LOCK_READWRITE: | |
721 | f->lock = fio_mutex_rw_init(); | |
722 | break; | |
723 | case FILE_LOCK_EXCLUSIVE: | |
724 | f->lock = fio_mutex_init(1); | |
725 | break; | |
726 | default: | |
727 | log_err("fio: unknown lock mode: %d\n", td->o.file_lock_mode); | |
728 | assert(0); | |
729 | } | |
29c1349f | 730 | |
7b4e4fe5 | 731 | td->files_index++; |
1549441c JA |
732 | if (f->filetype == FIO_TYPE_FILE) |
733 | td->nr_normal_files++; | |
f29b25a3 | 734 | |
5ec10eaa JA |
735 | dprint(FD_FILE, "file %p \"%s\" added at %d\n", f, f->file_name, |
736 | cur_files); | |
9efef3c4 | 737 | |
f29b25a3 | 738 | return cur_files; |
af52b345 | 739 | } |
0ad920e7 JA |
740 | |
741 | void get_file(struct fio_file *f) | |
742 | { | |
8172fe97 | 743 | dprint(FD_FILE, "get file %s, ref=%d\n", f->file_name, f->references); |
97af62ce | 744 | assert(f->flags & FIO_FILE_OPEN); |
0ad920e7 JA |
745 | f->references++; |
746 | } | |
747 | ||
6977bcd0 | 748 | int put_file(struct thread_data *td, struct fio_file *f) |
0ad920e7 | 749 | { |
98e1ac4e | 750 | int f_ret = 0, ret = 0; |
6977bcd0 | 751 | |
8172fe97 | 752 | dprint(FD_FILE, "put file %s, ref=%d\n", f->file_name, f->references); |
ee56ad50 | 753 | |
0ad920e7 | 754 | if (!(f->flags & FIO_FILE_OPEN)) |
6977bcd0 | 755 | return 0; |
0ad920e7 JA |
756 | |
757 | assert(f->references); | |
758 | if (--f->references) | |
6977bcd0 | 759 | return 0; |
0ad920e7 | 760 | |
d424d4dd | 761 | if (should_fsync(td) && td->o.fsync_on_close) |
98e1ac4e | 762 | f_ret = fsync(f->fd); |
ebb1415f | 763 | |
0ad920e7 | 764 | if (td->io_ops->close_file) |
6977bcd0 | 765 | ret = td->io_ops->close_file(td, f); |
1020a139 | 766 | |
98e1ac4e | 767 | if (!ret) |
a5fb461f | 768 | ret = f_ret; |
98e1ac4e | 769 | |
0ad920e7 JA |
770 | td->nr_open_files--; |
771 | f->flags &= ~FIO_FILE_OPEN; | |
6977bcd0 | 772 | return ret; |
0ad920e7 | 773 | } |
bbf6b540 | 774 | |
4d4e80f2 | 775 | void lock_file(struct thread_data *td, struct fio_file *f, enum fio_ddir ddir) |
b2bd2bd9 | 776 | { |
4d4e80f2 JA |
777 | if (!f->lock || td->o.file_lock_mode == FILE_LOCK_NONE) |
778 | return; | |
29c1349f | 779 | |
4d4e80f2 JA |
780 | if (f->lock_owner == td && f->lock_batch--) |
781 | return; | |
782 | ||
783 | if (td->o.file_lock_mode == FILE_LOCK_READWRITE) { | |
784 | if (ddir == DDIR_READ) | |
785 | fio_mutex_down_read(f->lock); | |
786 | else | |
787 | fio_mutex_down_write(f->lock); | |
788 | } else if (td->o.file_lock_mode == FILE_LOCK_EXCLUSIVE) | |
789 | fio_mutex_down(f->lock); | |
790 | ||
791 | f->lock_owner = td; | |
792 | f->lock_batch = td->o.lockfile_batch; | |
793 | f->lock_ddir = ddir; | |
b2bd2bd9 JA |
794 | } |
795 | ||
4d4e80f2 | 796 | void unlock_file(struct thread_data *td, struct fio_file *f) |
b2bd2bd9 | 797 | { |
4d4e80f2 JA |
798 | if (!f->lock || td->o.file_lock_mode == FILE_LOCK_NONE) |
799 | return; | |
800 | if (f->lock_batch) | |
801 | return; | |
802 | ||
803 | if (td->o.file_lock_mode == FILE_LOCK_READWRITE) { | |
804 | const int is_read = f->lock_ddir == DDIR_READ; | |
805 | int val = fio_mutex_getval(f->lock); | |
29c1349f | 806 | |
4d4e80f2 JA |
807 | if ((is_read && val == 1) || (!is_read && val == -1)) |
808 | f->lock_owner = NULL; | |
29c1349f | 809 | |
4d4e80f2 JA |
810 | if (is_read) |
811 | fio_mutex_up_read(f->lock); | |
812 | else | |
813 | fio_mutex_up_write(f->lock); | |
814 | } else if (td->o.file_lock_mode == FILE_LOCK_EXCLUSIVE) { | |
815 | int val = fio_mutex_getval(f->lock); | |
816 | ||
817 | if (val == 0) | |
818 | f->lock_owner = NULL; | |
819 | ||
820 | fio_mutex_up(f->lock); | |
29c1349f | 821 | } |
b2bd2bd9 JA |
822 | } |
823 | ||
4d4e80f2 JA |
824 | void unlock_file_all(struct thread_data *td, struct fio_file *f) |
825 | { | |
826 | if (f->lock_owner != td) | |
827 | return; | |
828 | ||
829 | f->lock_batch = 0; | |
830 | unlock_file(td, f); | |
831 | } | |
832 | ||
bbf6b540 JA |
833 | static int recurse_dir(struct thread_data *td, const char *dirname) |
834 | { | |
835 | struct dirent *dir; | |
836 | int ret = 0; | |
837 | DIR *D; | |
838 | ||
839 | D = opendir(dirname); | |
840 | if (!D) { | |
0ddb270c JA |
841 | char buf[FIO_VERROR_SIZE]; |
842 | ||
843 | snprintf(buf, FIO_VERROR_SIZE - 1, "opendir(%s)", dirname); | |
844 | td_verror(td, errno, buf); | |
bbf6b540 JA |
845 | return 1; |
846 | } | |
847 | ||
848 | while ((dir = readdir(D)) != NULL) { | |
849 | char full_path[PATH_MAX]; | |
850 | struct stat sb; | |
851 | ||
e85b2b83 JA |
852 | if (!strcmp(dir->d_name, ".") || !strcmp(dir->d_name, "..")) |
853 | continue; | |
96d32d51 | 854 | |
bbf6b540 JA |
855 | sprintf(full_path, "%s/%s", dirname, dir->d_name); |
856 | ||
857 | if (lstat(full_path, &sb) == -1) { | |
858 | if (errno != ENOENT) { | |
859 | td_verror(td, errno, "stat"); | |
860 | return 1; | |
861 | } | |
862 | } | |
863 | ||
864 | if (S_ISREG(sb.st_mode)) { | |
865 | add_file(td, full_path); | |
2dc1bbeb | 866 | td->o.nr_files++; |
bbf6b540 JA |
867 | continue; |
868 | } | |
0ddb270c JA |
869 | if (!S_ISDIR(sb.st_mode)) |
870 | continue; | |
bbf6b540 | 871 | |
5ec10eaa JA |
872 | ret = recurse_dir(td, full_path); |
873 | if (ret) | |
bbf6b540 JA |
874 | break; |
875 | } | |
876 | ||
877 | closedir(D); | |
878 | return ret; | |
879 | } | |
880 | ||
881 | int add_dir_files(struct thread_data *td, const char *path) | |
882 | { | |
0ddb270c JA |
883 | int ret = recurse_dir(td, path); |
884 | ||
885 | if (!ret) | |
886 | log_info("fio: opendir added %d files\n", td->o.nr_files); | |
887 | ||
888 | return ret; | |
bbf6b540 | 889 | } |
cade3ef4 JA |
890 | |
891 | void dup_files(struct thread_data *td, struct thread_data *org) | |
892 | { | |
893 | struct fio_file *f; | |
894 | unsigned int i; | |
9efef3c4 JA |
895 | |
896 | dprint(FD_FILE, "dup files: %d\n", org->files_index); | |
cade3ef4 JA |
897 | |
898 | if (!org->files) | |
899 | return; | |
900 | ||
9efef3c4 | 901 | td->files = malloc(org->files_index * sizeof(f)); |
cade3ef4 | 902 | |
9efef3c4 | 903 | for_each_file(org, f, i) { |
b0fe421a JA |
904 | struct fio_file *__f; |
905 | ||
f17c4392 | 906 | __f = smalloc(sizeof(*__f)); |
b0fe421a | 907 | |
cade3ef4 | 908 | if (f->file_name) |
f17c4392 | 909 | __f->file_name = smalloc_strdup(f->file_name); |
b0fe421a JA |
910 | |
911 | td->files[i] = __f; | |
cade3ef4 JA |
912 | } |
913 | } | |
f29b25a3 JA |
914 | |
915 | /* | |
916 | * Returns the index that matches the filename, or -1 if not there | |
917 | */ | |
918 | int get_fileno(struct thread_data *td, const char *fname) | |
919 | { | |
920 | struct fio_file *f; | |
921 | unsigned int i; | |
922 | ||
923 | for_each_file(td, f, i) | |
924 | if (!strcmp(f->file_name, fname)) | |
925 | return i; | |
926 | ||
927 | return -1; | |
928 | } | |
929 | ||
930 | /* | |
931 | * For log usage, where we add/open/close files automatically | |
932 | */ | |
933 | void free_release_files(struct thread_data *td) | |
934 | { | |
935 | close_files(td); | |
936 | td->files_index = 0; | |
937 | td->nr_normal_files = 0; | |
938 | } |