Commit | Line | Data |
---|---|---|
ebac4655 JA |
1 | /* |
2 | * The io parts of the fio tool, includes workers for sync and mmap'ed | |
3 | * io, as well as both posix and linux libaio support. | |
4 | * | |
5 | * sync io is implemented on top of aio. | |
6 | * | |
7 | * This is not really specific to fio, if the get_io_u/put_io_u and | |
8 | * structures was pulled into this as well it would be a perfectly | |
9 | * generic io engine that could be used for other projects. | |
10 | * | |
11 | */ | |
12 | #include <stdio.h> | |
13 | #include <stdlib.h> | |
14 | #include <unistd.h> | |
5c4e1dbc | 15 | #include <string.h> |
2866c82d | 16 | #include <dlfcn.h> |
ecc314ba | 17 | #include <fcntl.h> |
0c6e7517 | 18 | #include <assert.h> |
8c16d840 | 19 | |
ebac4655 | 20 | #include "fio.h" |
7c9b1bce | 21 | #include "diskutil.h" |
ebac4655 | 22 | |
01743ee1 | 23 | static FLIST_HEAD(engine_list); |
5f350952 | 24 | |
1cc954ba | 25 | static bool check_engine_ops(struct ioengine_ops *ops) |
8c16d840 | 26 | { |
5f350952 | 27 | if (ops->version != FIO_IOOPS_VERSION) { |
5ec10eaa JA |
28 | log_err("bad ioops version %d (want %d)\n", ops->version, |
29 | FIO_IOOPS_VERSION); | |
1cc954ba | 30 | return true; |
5f350952 JA |
31 | } |
32 | ||
36167d82 JA |
33 | if (!ops->queue) { |
34 | log_err("%s: no queue handler\n", ops->name); | |
1cc954ba | 35 | return true; |
36167d82 JA |
36 | } |
37 | ||
38 | /* | |
39 | * sync engines only need a ->queue() | |
40 | */ | |
41 | if (ops->flags & FIO_SYNCIO) | |
1cc954ba | 42 | return false; |
5ec10eaa | 43 | |
1cc954ba JA |
44 | if (!ops->event || !ops->getevents) { |
45 | log_err("%s: no event/getevents handler\n", ops->name); | |
46 | return true; | |
8c16d840 | 47 | } |
5ec10eaa | 48 | |
1cc954ba | 49 | return false; |
8c16d840 JA |
50 | } |
51 | ||
5f350952 | 52 | void unregister_ioengine(struct ioengine_ops *ops) |
ebac4655 | 53 | { |
ee56ad50 | 54 | dprint(FD_IO, "ioengine %s unregistered\n", ops->name); |
01743ee1 JA |
55 | flist_del(&ops->list); |
56 | INIT_FLIST_HEAD(&ops->list); | |
5f350952 JA |
57 | } |
58 | ||
b2fdda43 | 59 | void register_ioengine(struct ioengine_ops *ops) |
5f350952 | 60 | { |
ee56ad50 | 61 | dprint(FD_IO, "ioengine %s registered\n", ops->name); |
01743ee1 JA |
62 | INIT_FLIST_HEAD(&ops->list); |
63 | flist_add_tail(&ops->list, &engine_list); | |
5f350952 JA |
64 | } |
65 | ||
66 | static struct ioengine_ops *find_ioengine(const char *name) | |
67 | { | |
68 | struct ioengine_ops *ops; | |
01743ee1 | 69 | struct flist_head *entry; |
ebac4655 | 70 | |
01743ee1 JA |
71 | flist_for_each(entry, &engine_list) { |
72 | ops = flist_entry(entry, struct ioengine_ops, list); | |
bc5b77a8 | 73 | if (!strcmp(name, ops->name)) |
5f350952 JA |
74 | return ops; |
75 | } | |
76 | ||
77 | return NULL; | |
78 | } | |
79 | ||
80 | static struct ioengine_ops *dlopen_ioengine(struct thread_data *td, | |
81 | const char *engine_lib) | |
82 | { | |
83 | struct ioengine_ops *ops; | |
84 | void *dlhandle; | |
85 | ||
ee56ad50 JA |
86 | dprint(FD_IO, "dload engine %s\n", engine_lib); |
87 | ||
2866c82d JA |
88 | dlerror(); |
89 | dlhandle = dlopen(engine_lib, RTLD_LAZY); | |
d4dbaaa8 | 90 | if (!dlhandle) { |
e1161c32 | 91 | td_vmsg(td, -1, dlerror(), "dlopen"); |
d4dbaaa8 JA |
92 | return NULL; |
93 | } | |
8756e4d4 | 94 | |
da51c050 JA |
95 | /* |
96 | * Unlike the included modules, external engines should have a | |
97 | * non-static ioengine structure that we can reference. | |
98 | */ | |
0abea0b7 DM |
99 | ops = dlsym(dlhandle, engine_lib); |
100 | if (!ops) | |
101 | ops = dlsym(dlhandle, "ioengine"); | |
a8075704 DG |
102 | |
103 | /* | |
104 | * For some external engines (like C++ ones) it is not that trivial | |
105 | * to provide a non-static ionengine structure that we can reference. | |
106 | * Instead we call a method which allocates the required ioengine | |
107 | * structure. | |
108 | */ | |
109 | if (!ops) { | |
110 | get_ioengine_t get_ioengine = dlsym(dlhandle, "get_ioengine"); | |
111 | ||
112 | if (get_ioengine) | |
113 | get_ioengine(&ops); | |
114 | } | |
115 | ||
d4dbaaa8 | 116 | if (!ops) { |
e1161c32 | 117 | td_vmsg(td, -1, dlerror(), "dlsym"); |
d4dbaaa8 JA |
118 | dlclose(dlhandle); |
119 | return NULL; | |
120 | } | |
8756e4d4 | 121 | |
565e784d | 122 | td->io_ops_dlhandle = dlhandle; |
5f350952 JA |
123 | return ops; |
124 | } | |
125 | ||
97bb54c9 TK |
126 | static struct ioengine_ops *__load_ioengine(const char *name) |
127 | { | |
128 | char engine[64]; | |
129 | ||
130 | engine[sizeof(engine) - 1] = '\0'; | |
131 | strncpy(engine, name, sizeof(engine) - 1); | |
132 | ||
133 | /* | |
134 | * linux libaio has alias names, so convert to what we want | |
135 | */ | |
136 | if (!strncmp(engine, "linuxaio", 8) || !strncmp(engine, "aio", 3)) | |
137 | strcpy(engine, "libaio"); | |
138 | ||
139 | dprint(FD_IO, "load ioengine %s\n", engine); | |
140 | return find_ioengine(engine); | |
141 | } | |
142 | ||
4fedf59a | 143 | struct ioengine_ops *load_ioengine(struct thread_data *td) |
5f350952 | 144 | { |
81647a9a TK |
145 | struct ioengine_ops *ops = NULL; |
146 | const char *name = NULL; | |
147 | ||
148 | if (strcmp(td->o.ioengine, "external")) { | |
81647a9a | 149 | name = td->o.ioengine; |
97bb54c9 | 150 | ops = __load_ioengine(name); |
81647a9a TK |
151 | } else if (td->o.ioengine_so_path) { |
152 | name = td->o.ioengine_so_path; | |
5f350952 | 153 | ops = dlopen_ioengine(td, name); |
81647a9a TK |
154 | } else |
155 | log_err("fio: missing external ioengine path\n"); | |
5f350952 JA |
156 | |
157 | if (!ops) { | |
158 | log_err("fio: engine %s not loadable\n", name); | |
b902ceb5 JA |
159 | return NULL; |
160 | } | |
161 | ||
8c16d840 JA |
162 | /* |
163 | * Check that the required methods are there. | |
164 | */ | |
5f350952 | 165 | if (check_engine_ops(ops)) |
8c16d840 | 166 | return NULL; |
8c16d840 | 167 | |
565e784d | 168 | return ops; |
8756e4d4 JA |
169 | } |
170 | ||
de890a1e SL |
171 | /* |
172 | * For cleaning up an ioengine which never made it to init(). | |
173 | */ | |
174 | void free_ioengine(struct thread_data *td) | |
8756e4d4 | 175 | { |
de890a1e | 176 | dprint(FD_IO, "free ioengine %s\n", td->io_ops->name); |
ee56ad50 | 177 | |
de890a1e SL |
178 | if (td->eo && td->io_ops->options) { |
179 | options_free(td->io_ops->options, td->eo); | |
180 | free(td->eo); | |
181 | td->eo = NULL; | |
2992b059 | 182 | } |
b990b5c0 | 183 | |
565e784d TK |
184 | if (td->io_ops_dlhandle) |
185 | dlclose(td->io_ops_dlhandle); | |
5f350952 | 186 | |
84585003 | 187 | td->io_ops = NULL; |
b990b5c0 | 188 | } |
10ba535a | 189 | |
de890a1e SL |
190 | void close_ioengine(struct thread_data *td) |
191 | { | |
192 | dprint(FD_IO, "close ioengine %s\n", td->io_ops->name); | |
193 | ||
194 | if (td->io_ops->cleanup) { | |
195 | td->io_ops->cleanup(td); | |
565e784d | 196 | td->io_ops_data = NULL; |
de890a1e SL |
197 | } |
198 | ||
199 | free_ioengine(td); | |
200 | } | |
201 | ||
10ba535a JA |
202 | int td_io_prep(struct thread_data *td, struct io_u *io_u) |
203 | { | |
ee56ad50 | 204 | dprint_io_u(io_u, "prep"); |
7101d9c2 JA |
205 | fio_ro_check(td, io_u); |
206 | ||
4d4e80f2 | 207 | lock_file(td, io_u->file, io_u->ddir); |
b2bd2bd9 | 208 | |
2ba1c290 JA |
209 | if (td->io_ops->prep) { |
210 | int ret = td->io_ops->prep(td, io_u); | |
211 | ||
212 | dprint(FD_IO, "->prep(%p)=%d\n", io_u, ret); | |
b2bd2bd9 | 213 | if (ret) |
4d4e80f2 | 214 | unlock_file(td, io_u->file); |
2ba1c290 JA |
215 | return ret; |
216 | } | |
10ba535a JA |
217 | |
218 | return 0; | |
219 | } | |
220 | ||
e7d2e616 | 221 | int td_io_getevents(struct thread_data *td, unsigned int min, unsigned int max, |
1f440ece | 222 | const struct timespec *t) |
10ba535a | 223 | { |
ee56ad50 | 224 | int r = 0; |
face81b2 | 225 | |
a05d62b2 YR |
226 | /* |
227 | * For ioengine=rdma one side operation RDMA_WRITE or RDMA_READ, | |
228 | * server side gets a message from the client | |
229 | * side that the task is finished, and | |
230 | * td->done is set to 1 after td_io_commit(). In this case, | |
231 | * there is no need to reap complete event in server side. | |
232 | */ | |
233 | if (td->done) | |
234 | return 0; | |
235 | ||
ee56ad50 JA |
236 | if (min > 0 && td->io_ops->commit) { |
237 | r = td->io_ops->commit(td); | |
face81b2 | 238 | if (r < 0) |
ee56ad50 | 239 | goto out; |
face81b2 | 240 | } |
4950421a JA |
241 | if (max > td->cur_depth) |
242 | max = td->cur_depth; | |
243 | if (min > max) | |
244 | max = min; | |
36167d82 | 245 | |
ee56ad50 | 246 | r = 0; |
4950421a | 247 | if (max && td->io_ops->getevents) |
ee56ad50 JA |
248 | r = td->io_ops->getevents(td, min, max, t); |
249 | out: | |
422f9e4b RM |
250 | if (r >= 0) { |
251 | /* | |
3fd9efbc | 252 | * Reflect that our submitted requests were retrieved with |
422f9e4b RM |
253 | * whatever OS async calls are in the underlying engine. |
254 | */ | |
255 | td->io_u_in_flight -= r; | |
838bc709 | 256 | io_u_mark_complete(td, r); |
422f9e4b | 257 | } else |
7c639b14 | 258 | td_verror(td, r, "get_events"); |
f3e11d05 | 259 | |
ee56ad50 JA |
260 | dprint(FD_IO, "getevents: %d\n", r); |
261 | return r; | |
10ba535a JA |
262 | } |
263 | ||
264 | int td_io_queue(struct thread_data *td, struct io_u *io_u) | |
265 | { | |
a9da8ab2 JA |
266 | const enum fio_ddir ddir = acct_ddir(io_u); |
267 | unsigned long buflen = io_u->xfer_buflen; | |
7e77dd02 JA |
268 | int ret; |
269 | ||
ee56ad50 | 270 | dprint_io_u(io_u, "queue"); |
7101d9c2 JA |
271 | fio_ro_check(td, io_u); |
272 | ||
0c6e7517 | 273 | assert((io_u->flags & IO_U_F_FLIGHT) == 0); |
1651e431 | 274 | io_u_set(td, io_u, IO_U_F_FLIGHT); |
0c6e7517 | 275 | |
d6aed795 | 276 | assert(fio_file_open(io_u->file)); |
3d7b485f | 277 | |
bcd5abfa JA |
278 | /* |
279 | * If using a write iolog, store this entry. | |
280 | */ | |
281 | log_io_u(td, io_u); | |
282 | ||
11786802 JA |
283 | io_u->error = 0; |
284 | io_u->resid = 0; | |
285 | ||
9b87f09b | 286 | if (td_ioengine_flagged(td, FIO_SYNCIO)) { |
12d9d841 | 287 | if (fio_fill_issue_time(td)) |
9520ebb9 | 288 | fio_gettime(&io_u->issue_time, NULL); |
d0c15328 JA |
289 | |
290 | /* | |
291 | * only used for iolog | |
292 | */ | |
293 | if (td->o.read_iolog_file) | |
294 | memcpy(&td->last_issue, &io_u->issue_time, | |
8b6a404c | 295 | sizeof(io_u->issue_time)); |
433afcb4 JA |
296 | } |
297 | ||
a9da8ab2 JA |
298 | if (ddir_rw(ddir)) { |
299 | td->io_issues[ddir]++; | |
300 | td->io_issue_bytes[ddir] += buflen; | |
50a8ce86 | 301 | td->rate_io_issue_bytes[ddir] += buflen; |
74d6277f | 302 | } |
755200a3 | 303 | |
7e77dd02 | 304 | ret = td->io_ops->queue(td, io_u); |
5aeb77df | 305 | |
4d4e80f2 | 306 | unlock_file(td, io_u->file); |
b2bd2bd9 | 307 | |
a9da8ab2 JA |
308 | if (ret == FIO_Q_BUSY && ddir_rw(ddir)) { |
309 | td->io_issues[ddir]--; | |
310 | td->io_issue_bytes[ddir] -= buflen; | |
50a8ce86 | 311 | td->rate_io_issue_bytes[ddir] -= buflen; |
871467d9 | 312 | io_u_clear(td, io_u, IO_U_F_FLIGHT); |
cd8a19e6 JA |
313 | } |
314 | ||
39a43d34 JA |
315 | /* |
316 | * If an error was seen and the io engine didn't propagate it | |
317 | * back to 'td', do so. | |
318 | */ | |
319 | if (io_u->error && !td->error) | |
320 | td_verror(td, io_u->error, "td_io_queue"); | |
321 | ||
cb211682 JA |
322 | /* |
323 | * Add warning for O_DIRECT so that users have an easier time | |
324 | * spotting potentially bad alignment. If this triggers for the first | |
325 | * IO, then it's likely an alignment problem or because the host fs | |
326 | * does not support O_DIRECT | |
327 | */ | |
ff58fced | 328 | if (io_u->error == EINVAL && td->io_issues[io_u->ddir & 1] == 1 && |
cb211682 | 329 | td->o.odirect) { |
214ac7e0 | 330 | |
cb211682 | 331 | log_info("fio: first direct IO errored. File system may not " |
44cc9c8f JA |
332 | "support direct IO, or iomem_align= is bad. Try " |
333 | "setting direct=0.\n"); | |
cb211682 JA |
334 | } |
335 | ||
77b451cc | 336 | if (!td->io_ops->commit || io_u->ddir == DDIR_TRIM) { |
838bc709 JA |
337 | io_u_mark_submit(td, 1); |
338 | io_u_mark_complete(td, 1); | |
339 | } | |
340 | ||
d8005759 | 341 | if (ret == FIO_Q_COMPLETED) { |
ff58fced | 342 | if (ddir_rw(io_u->ddir)) { |
d8005759 JA |
343 | io_u_mark_depth(td, 1); |
344 | td->ts.total_io_u[io_u->ddir]++; | |
6eaf09d6 | 345 | } |
d8005759 | 346 | } else if (ret == FIO_Q_QUEUED) { |
eb7c8ae2 JA |
347 | int r; |
348 | ||
e6727cbd JA |
349 | td->io_u_queued++; |
350 | ||
351 | if (ddir_rw(io_u->ddir)) | |
d8005759 | 352 | td->ts.total_io_u[io_u->ddir]++; |
d8005759 JA |
353 | |
354 | if (td->io_u_queued >= td->o.iodepth_batch) { | |
eb7c8ae2 JA |
355 | r = td_io_commit(td); |
356 | if (r < 0) | |
357 | return r; | |
358 | } | |
359 | } | |
cb5ab512 | 360 | |
9b87f09b | 361 | if (!td_ioengine_flagged(td, FIO_SYNCIO)) { |
12d9d841 | 362 | if (fio_fill_issue_time(td)) |
9520ebb9 | 363 | fio_gettime(&io_u->issue_time, NULL); |
d0c15328 JA |
364 | |
365 | /* | |
366 | * only used for iolog | |
367 | */ | |
368 | if (td->o.read_iolog_file) | |
369 | memcpy(&td->last_issue, &io_u->issue_time, | |
8b6a404c | 370 | sizeof(io_u->issue_time)); |
433afcb4 JA |
371 | } |
372 | ||
7e77dd02 | 373 | return ret; |
10ba535a | 374 | } |
8c16d840 JA |
375 | |
376 | int td_io_init(struct thread_data *td) | |
377 | { | |
eeb12160 | 378 | int ret = 0; |
8c16d840 | 379 | |
eeb12160 JA |
380 | if (td->io_ops->init) { |
381 | ret = td->io_ops->init(td); | |
356ef1a1 TK |
382 | if (ret) |
383 | log_err("fio: io engine %s init failed.%s\n", | |
384 | td->io_ops->name, | |
385 | td->o.iodepth > 1 ? | |
386 | " Perhaps try reducing io depth?" : ""); | |
387 | else | |
388 | td->io_ops_init = 1; | |
7c973896 JA |
389 | if (!td->error) |
390 | td->error = ret; | |
eeb12160 JA |
391 | } |
392 | ||
393 | return ret; | |
8c16d840 | 394 | } |
755200a3 JA |
395 | |
396 | int td_io_commit(struct thread_data *td) | |
397 | { | |
f3e11d05 JA |
398 | int ret; |
399 | ||
ee56ad50 JA |
400 | dprint(FD_IO, "calling ->commit(), depth %d\n", td->cur_depth); |
401 | ||
d8005759 | 402 | if (!td->cur_depth || !td->io_u_queued) |
e1161c32 | 403 | return 0; |
cb5ab512 | 404 | |
3fd9efbc | 405 | io_u_mark_depth(td, td->io_u_queued); |
d8005759 | 406 | |
f3e11d05 JA |
407 | if (td->io_ops->commit) { |
408 | ret = td->io_ops->commit(td); | |
409 | if (ret) | |
410 | td_verror(td, -ret, "io commit"); | |
411 | } | |
3fd9efbc | 412 | |
422f9e4b RM |
413 | /* |
414 | * Reflect that events were submitted as async IO requests. | |
415 | */ | |
416 | td->io_u_in_flight += td->io_u_queued; | |
417 | td->io_u_queued = 0; | |
755200a3 JA |
418 | |
419 | return 0; | |
420 | } | |
b5af8293 JA |
421 | |
422 | int td_io_open_file(struct thread_data *td, struct fio_file *f) | |
423 | { | |
22a57ba8 JA |
424 | assert(!fio_file_open(f)); |
425 | assert(f->fd == -1); | |
426 | ||
413d6693 JA |
427 | if (td->io_ops->open_file(td, f)) { |
428 | if (td->error == EINVAL && td->o.odirect) | |
429 | log_err("fio: destination does not support O_DIRECT\n"); | |
5ec10eaa JA |
430 | if (td->error == EMFILE) { |
431 | log_err("fio: try reducing/setting openfiles (failed" | |
432 | " at %u of %u)\n", td->nr_open_files, | |
433 | td->o.nr_files); | |
434 | } | |
413d6693 | 435 | |
22a57ba8 JA |
436 | assert(f->fd == -1); |
437 | assert(!fio_file_open(f)); | |
413d6693 JA |
438 | return 1; |
439 | } | |
440 | ||
33c48814 | 441 | fio_file_reset(td, f); |
d6aed795 JA |
442 | fio_file_set_open(f); |
443 | fio_file_clear_closing(f); | |
c97bd0fa | 444 | disk_util_inc(f->du); |
d5707a35 JA |
445 | |
446 | td->nr_open_files++; | |
447 | get_file(f); | |
448 | ||
66159828 JA |
449 | if (f->filetype == FIO_TYPE_PIPE) { |
450 | if (td_random(td)) { | |
451 | log_err("fio: can't seek on pipes (no random io)\n"); | |
452 | goto err; | |
453 | } | |
454 | } | |
455 | ||
9b87f09b | 456 | if (td_ioengine_flagged(td, FIO_DISKLESSIO)) |
413d6693 JA |
457 | goto done; |
458 | ||
459 | if (td->o.invalidate_cache && file_invalidate_cache(td, f)) | |
460 | goto err; | |
461 | ||
ecb2083d | 462 | if (td->o.fadvise_hint != F_ADV_NONE && |
686fbd31 | 463 | (f->filetype == FIO_TYPE_BLOCK || f->filetype == FIO_TYPE_FILE)) { |
413d6693 JA |
464 | int flags; |
465 | ||
ecb2083d JA |
466 | if (td->o.fadvise_hint == F_ADV_TYPE) { |
467 | if (td_random(td)) | |
468 | flags = POSIX_FADV_RANDOM; | |
469 | else | |
470 | flags = POSIX_FADV_SEQUENTIAL; | |
471 | } else if (td->o.fadvise_hint == F_ADV_RANDOM) | |
413d6693 | 472 | flags = POSIX_FADV_RANDOM; |
ecb2083d | 473 | else if (td->o.fadvise_hint == F_ADV_SEQUENTIAL) |
413d6693 | 474 | flags = POSIX_FADV_SEQUENTIAL; |
ecb2083d JA |
475 | else { |
476 | log_err("fio: unknown fadvise type %d\n", | |
477 | td->o.fadvise_hint); | |
478 | flags = POSIX_FADV_NORMAL; | |
479 | } | |
413d6693 | 480 | |
ecc314ba | 481 | if (posix_fadvise(f->fd, f->file_offset, f->io_size, flags) < 0) { |
413d6693 JA |
482 | td_verror(td, errno, "fadvise"); |
483 | goto err; | |
484 | } | |
7bb48f84 | 485 | } |
ae8e559e JA |
486 | #ifdef FIO_HAVE_WRITE_HINT |
487 | if (fio_option_is_set(&td->o, write_hint) && | |
686fbd31 | 488 | (f->filetype == FIO_TYPE_BLOCK || f->filetype == FIO_TYPE_FILE)) { |
ae8e559e | 489 | uint64_t hint = td->o.write_hint; |
bd553af6 | 490 | int cmd; |
37659335 | 491 | |
bd553af6 JA |
492 | /* |
493 | * For direct IO, we just need/want to set the hint on | |
494 | * the file descriptor. For buffered IO, we need to set | |
495 | * it on the inode. | |
496 | */ | |
497 | if (td->o.odirect) | |
498 | cmd = F_SET_FILE_RW_HINT; | |
499 | else | |
500 | cmd = F_SET_RW_HINT; | |
501 | ||
502 | if (fcntl(f->fd, cmd, &hint) < 0) { | |
ae8e559e | 503 | td_verror(td, errno, "fcntl write hint"); |
37659335 JA |
504 | goto err; |
505 | } | |
506 | } | |
507 | #endif | |
a978ba68 | 508 | |
47534cda TK |
509 | if (td->o.odirect && !OS_O_DIRECT && fio_set_directio(td, f)) |
510 | goto err; | |
e116f2b9 | 511 | |
413d6693 | 512 | done: |
f29b25a3 | 513 | log_file(td, f, FIO_LOG_OPEN_FILE); |
413d6693 JA |
514 | return 0; |
515 | err: | |
c97bd0fa | 516 | disk_util_dec(f->du); |
b284075a JA |
517 | if (td->io_ops->close_file) |
518 | td->io_ops->close_file(td, f); | |
7bb48f84 | 519 | return 1; |
b5af8293 JA |
520 | } |
521 | ||
6977bcd0 | 522 | int td_io_close_file(struct thread_data *td, struct fio_file *f) |
b5af8293 | 523 | { |
d6aed795 | 524 | if (!fio_file_closing(f)) |
f29b25a3 JA |
525 | log_file(td, f, FIO_LOG_CLOSE_FILE); |
526 | ||
0ad920e7 JA |
527 | /* |
528 | * mark as closing, do real close when last io on it has completed | |
529 | */ | |
d6aed795 | 530 | fio_file_set_closing(f); |
0ad920e7 | 531 | |
c97bd0fa | 532 | disk_util_dec(f->du); |
cba5243b JA |
533 | |
534 | if (td->o.file_lock_mode != FILE_LOCK_NONE) | |
535 | unlock_file_all(td, f); | |
29c1349f | 536 | |
6977bcd0 | 537 | return put_file(td, f); |
b5af8293 | 538 | } |
df9c26b1 | 539 | |
38ef9c90 CF |
540 | int td_io_unlink_file(struct thread_data *td, struct fio_file *f) |
541 | { | |
542 | if (td->io_ops->unlink_file) | |
543 | return td->io_ops->unlink_file(td, f); | |
2442c935 JA |
544 | else { |
545 | int ret; | |
546 | ||
547 | ret = unlink(f->file_name); | |
548 | if (ret < 0) | |
549 | return errno; | |
550 | ||
551 | return 0; | |
552 | } | |
38ef9c90 CF |
553 | } |
554 | ||
df9c26b1 JA |
555 | int td_io_get_file_size(struct thread_data *td, struct fio_file *f) |
556 | { | |
557 | if (!td->io_ops->get_file_size) | |
558 | return 0; | |
559 | ||
560 | return td->io_ops->get_file_size(td, f); | |
561 | } | |
44f29692 | 562 | |
de890a1e SL |
563 | int fio_show_ioengine_help(const char *engine) |
564 | { | |
565 | struct flist_head *entry; | |
755dcbbd | 566 | struct ioengine_ops *io_ops; |
de890a1e SL |
567 | char *sep; |
568 | int ret = 1; | |
569 | ||
570 | if (!engine || !*engine) { | |
571 | log_info("Available IO engines:\n"); | |
572 | flist_for_each(entry, &engine_list) { | |
755dcbbd TK |
573 | io_ops = flist_entry(entry, struct ioengine_ops, list); |
574 | log_info("\t%s\n", io_ops->name); | |
de890a1e SL |
575 | } |
576 | return 0; | |
577 | } | |
578 | sep = strchr(engine, ','); | |
579 | if (sep) { | |
580 | *sep = 0; | |
581 | sep++; | |
582 | } | |
583 | ||
97bb54c9 | 584 | io_ops = __load_ioengine(engine); |
755dcbbd | 585 | if (!io_ops) { |
de890a1e SL |
586 | log_info("IO engine %s not found\n", engine); |
587 | return 1; | |
588 | } | |
589 | ||
755dcbbd TK |
590 | if (io_ops->options) |
591 | ret = show_cmd_help(io_ops->options, sep); | |
de890a1e | 592 | else |
755dcbbd | 593 | log_info("IO engine %s has no options\n", io_ops->name); |
de890a1e | 594 | |
de890a1e SL |
595 | return ret; |
596 | } |