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 | */ | |
966fcbd4 | 136 | if (!strncmp(engine, "linuxaio", 8) || !strncmp(engine, "aio", 3)) { |
137 | dprint(FD_IO, "converting ioengine name: %s -> libaio\n", name); | |
97bb54c9 | 138 | strcpy(engine, "libaio"); |
966fcbd4 | 139 | } |
97bb54c9 TK |
140 | |
141 | dprint(FD_IO, "load ioengine %s\n", engine); | |
142 | return find_ioengine(engine); | |
143 | } | |
144 | ||
4fedf59a | 145 | struct ioengine_ops *load_ioengine(struct thread_data *td) |
5f350952 | 146 | { |
81647a9a | 147 | struct ioengine_ops *ops = NULL; |
ba872a0b | 148 | const char *name; |
81647a9a | 149 | |
ba872a0b TK |
150 | /* |
151 | * Use ->ioengine_so_path if an external ioengine path is specified. | |
152 | * In this case, ->ioengine is "external" which also means the prefix | |
153 | * for external ioengines "external:" is properly used. | |
154 | */ | |
155 | name = td->o.ioengine_so_path ?: td->o.ioengine; | |
156 | ||
157 | /* | |
158 | * Try to load ->ioengine first, and if failed try to dlopen(3) either | |
159 | * ->ioengine or ->ioengine_so_path. This is redundant for an external | |
160 | * ioengine with prefix, and also leaves the possibility of unexpected | |
161 | * behavior (e.g. if the "external" ioengine exists), but we do this | |
162 | * so as not to break job files not using the prefix. | |
163 | */ | |
164 | ops = __load_ioengine(td->o.ioengine); | |
165 | if (!ops) | |
5f350952 JA |
166 | ops = dlopen_ioengine(td, name); |
167 | ||
ba872a0b TK |
168 | /* |
169 | * If ops is NULL, we failed to load ->ioengine, and also failed to | |
170 | * dlopen(3) either ->ioengine or ->ioengine_so_path as a path. | |
171 | */ | |
5f350952 JA |
172 | if (!ops) { |
173 | log_err("fio: engine %s not loadable\n", name); | |
b902ceb5 JA |
174 | return NULL; |
175 | } | |
176 | ||
8c16d840 JA |
177 | /* |
178 | * Check that the required methods are there. | |
179 | */ | |
5f350952 | 180 | if (check_engine_ops(ops)) |
8c16d840 | 181 | return NULL; |
8c16d840 | 182 | |
565e784d | 183 | return ops; |
8756e4d4 JA |
184 | } |
185 | ||
de890a1e SL |
186 | /* |
187 | * For cleaning up an ioengine which never made it to init(). | |
188 | */ | |
189 | void free_ioengine(struct thread_data *td) | |
8756e4d4 | 190 | { |
de890a1e | 191 | dprint(FD_IO, "free ioengine %s\n", td->io_ops->name); |
ee56ad50 | 192 | |
de890a1e SL |
193 | if (td->eo && td->io_ops->options) { |
194 | options_free(td->io_ops->options, td->eo); | |
195 | free(td->eo); | |
196 | td->eo = NULL; | |
2992b059 | 197 | } |
b990b5c0 | 198 | |
565e784d TK |
199 | if (td->io_ops_dlhandle) |
200 | dlclose(td->io_ops_dlhandle); | |
5f350952 | 201 | |
84585003 | 202 | td->io_ops = NULL; |
b990b5c0 | 203 | } |
10ba535a | 204 | |
de890a1e SL |
205 | void close_ioengine(struct thread_data *td) |
206 | { | |
207 | dprint(FD_IO, "close ioengine %s\n", td->io_ops->name); | |
208 | ||
209 | if (td->io_ops->cleanup) { | |
210 | td->io_ops->cleanup(td); | |
565e784d | 211 | td->io_ops_data = NULL; |
de890a1e SL |
212 | } |
213 | ||
214 | free_ioengine(td); | |
215 | } | |
216 | ||
10ba535a JA |
217 | int td_io_prep(struct thread_data *td, struct io_u *io_u) |
218 | { | |
ee56ad50 | 219 | dprint_io_u(io_u, "prep"); |
7101d9c2 JA |
220 | fio_ro_check(td, io_u); |
221 | ||
4d4e80f2 | 222 | lock_file(td, io_u->file, io_u->ddir); |
b2bd2bd9 | 223 | |
2ba1c290 JA |
224 | if (td->io_ops->prep) { |
225 | int ret = td->io_ops->prep(td, io_u); | |
226 | ||
227 | dprint(FD_IO, "->prep(%p)=%d\n", io_u, ret); | |
b2bd2bd9 | 228 | if (ret) |
4d4e80f2 | 229 | unlock_file(td, io_u->file); |
2ba1c290 JA |
230 | return ret; |
231 | } | |
10ba535a JA |
232 | |
233 | return 0; | |
234 | } | |
235 | ||
e7d2e616 | 236 | int td_io_getevents(struct thread_data *td, unsigned int min, unsigned int max, |
1f440ece | 237 | const struct timespec *t) |
10ba535a | 238 | { |
ee56ad50 | 239 | int r = 0; |
face81b2 | 240 | |
a05d62b2 YR |
241 | /* |
242 | * For ioengine=rdma one side operation RDMA_WRITE or RDMA_READ, | |
243 | * server side gets a message from the client | |
244 | * side that the task is finished, and | |
245 | * td->done is set to 1 after td_io_commit(). In this case, | |
246 | * there is no need to reap complete event in server side. | |
247 | */ | |
248 | if (td->done) | |
249 | return 0; | |
250 | ||
ee56ad50 JA |
251 | if (min > 0 && td->io_ops->commit) { |
252 | r = td->io_ops->commit(td); | |
face81b2 | 253 | if (r < 0) |
ee56ad50 | 254 | goto out; |
face81b2 | 255 | } |
4950421a JA |
256 | if (max > td->cur_depth) |
257 | max = td->cur_depth; | |
258 | if (min > max) | |
259 | max = min; | |
36167d82 | 260 | |
ee56ad50 | 261 | r = 0; |
4950421a | 262 | if (max && td->io_ops->getevents) |
ee56ad50 JA |
263 | r = td->io_ops->getevents(td, min, max, t); |
264 | out: | |
422f9e4b RM |
265 | if (r >= 0) { |
266 | /* | |
3fd9efbc | 267 | * Reflect that our submitted requests were retrieved with |
422f9e4b RM |
268 | * whatever OS async calls are in the underlying engine. |
269 | */ | |
270 | td->io_u_in_flight -= r; | |
838bc709 | 271 | io_u_mark_complete(td, r); |
422f9e4b | 272 | } else |
7c639b14 | 273 | td_verror(td, r, "get_events"); |
f3e11d05 | 274 | |
ee56ad50 JA |
275 | dprint(FD_IO, "getevents: %d\n", r); |
276 | return r; | |
10ba535a JA |
277 | } |
278 | ||
279 | int td_io_queue(struct thread_data *td, struct io_u *io_u) | |
280 | { | |
a9da8ab2 JA |
281 | const enum fio_ddir ddir = acct_ddir(io_u); |
282 | unsigned long buflen = io_u->xfer_buflen; | |
7e77dd02 JA |
283 | int ret; |
284 | ||
ee56ad50 | 285 | dprint_io_u(io_u, "queue"); |
7101d9c2 JA |
286 | fio_ro_check(td, io_u); |
287 | ||
0c6e7517 | 288 | assert((io_u->flags & IO_U_F_FLIGHT) == 0); |
1651e431 | 289 | io_u_set(td, io_u, IO_U_F_FLIGHT); |
0c6e7517 | 290 | |
d6aed795 | 291 | assert(fio_file_open(io_u->file)); |
3d7b485f | 292 | |
bcd5abfa JA |
293 | /* |
294 | * If using a write iolog, store this entry. | |
295 | */ | |
296 | log_io_u(td, io_u); | |
297 | ||
11786802 JA |
298 | io_u->error = 0; |
299 | io_u->resid = 0; | |
300 | ||
9b87f09b | 301 | if (td_ioengine_flagged(td, FIO_SYNCIO)) { |
12d9d841 | 302 | if (fio_fill_issue_time(td)) |
9520ebb9 | 303 | fio_gettime(&io_u->issue_time, NULL); |
d0c15328 JA |
304 | |
305 | /* | |
306 | * only used for iolog | |
307 | */ | |
308 | if (td->o.read_iolog_file) | |
309 | memcpy(&td->last_issue, &io_u->issue_time, | |
8b6a404c | 310 | sizeof(io_u->issue_time)); |
433afcb4 JA |
311 | } |
312 | ||
a9da8ab2 JA |
313 | if (ddir_rw(ddir)) { |
314 | td->io_issues[ddir]++; | |
315 | td->io_issue_bytes[ddir] += buflen; | |
50a8ce86 | 316 | td->rate_io_issue_bytes[ddir] += buflen; |
74d6277f | 317 | } |
755200a3 | 318 | |
7e77dd02 | 319 | ret = td->io_ops->queue(td, io_u); |
5aeb77df | 320 | |
4d4e80f2 | 321 | unlock_file(td, io_u->file); |
b2bd2bd9 | 322 | |
a9da8ab2 JA |
323 | if (ret == FIO_Q_BUSY && ddir_rw(ddir)) { |
324 | td->io_issues[ddir]--; | |
325 | td->io_issue_bytes[ddir] -= buflen; | |
50a8ce86 | 326 | td->rate_io_issue_bytes[ddir] -= buflen; |
871467d9 | 327 | io_u_clear(td, io_u, IO_U_F_FLIGHT); |
cd8a19e6 JA |
328 | } |
329 | ||
39a43d34 JA |
330 | /* |
331 | * If an error was seen and the io engine didn't propagate it | |
332 | * back to 'td', do so. | |
333 | */ | |
334 | if (io_u->error && !td->error) | |
335 | td_verror(td, io_u->error, "td_io_queue"); | |
336 | ||
cb211682 JA |
337 | /* |
338 | * Add warning for O_DIRECT so that users have an easier time | |
339 | * spotting potentially bad alignment. If this triggers for the first | |
340 | * IO, then it's likely an alignment problem or because the host fs | |
341 | * does not support O_DIRECT | |
342 | */ | |
ff58fced | 343 | if (io_u->error == EINVAL && td->io_issues[io_u->ddir & 1] == 1 && |
cb211682 | 344 | td->o.odirect) { |
214ac7e0 | 345 | |
cb211682 | 346 | log_info("fio: first direct IO errored. File system may not " |
78d4a262 TK |
347 | "support direct IO, or iomem_align= is bad, or " |
348 | "invalid block size. Try setting direct=0.\n"); | |
cb211682 JA |
349 | } |
350 | ||
77b451cc | 351 | if (!td->io_ops->commit || io_u->ddir == DDIR_TRIM) { |
838bc709 JA |
352 | io_u_mark_submit(td, 1); |
353 | io_u_mark_complete(td, 1); | |
354 | } | |
355 | ||
d8005759 | 356 | if (ret == FIO_Q_COMPLETED) { |
ff58fced | 357 | if (ddir_rw(io_u->ddir)) { |
d8005759 JA |
358 | io_u_mark_depth(td, 1); |
359 | td->ts.total_io_u[io_u->ddir]++; | |
6eaf09d6 | 360 | } |
d8005759 | 361 | } else if (ret == FIO_Q_QUEUED) { |
eb7c8ae2 JA |
362 | int r; |
363 | ||
e6727cbd JA |
364 | td->io_u_queued++; |
365 | ||
366 | if (ddir_rw(io_u->ddir)) | |
d8005759 | 367 | td->ts.total_io_u[io_u->ddir]++; |
d8005759 JA |
368 | |
369 | if (td->io_u_queued >= td->o.iodepth_batch) { | |
eb7c8ae2 JA |
370 | r = td_io_commit(td); |
371 | if (r < 0) | |
372 | return r; | |
373 | } | |
374 | } | |
cb5ab512 | 375 | |
9b87f09b | 376 | if (!td_ioengine_flagged(td, FIO_SYNCIO)) { |
12d9d841 | 377 | if (fio_fill_issue_time(td)) |
9520ebb9 | 378 | fio_gettime(&io_u->issue_time, NULL); |
d0c15328 JA |
379 | |
380 | /* | |
381 | * only used for iolog | |
382 | */ | |
383 | if (td->o.read_iolog_file) | |
384 | memcpy(&td->last_issue, &io_u->issue_time, | |
8b6a404c | 385 | sizeof(io_u->issue_time)); |
433afcb4 JA |
386 | } |
387 | ||
7e77dd02 | 388 | return ret; |
10ba535a | 389 | } |
8c16d840 JA |
390 | |
391 | int td_io_init(struct thread_data *td) | |
392 | { | |
eeb12160 | 393 | int ret = 0; |
8c16d840 | 394 | |
eeb12160 JA |
395 | if (td->io_ops->init) { |
396 | ret = td->io_ops->init(td); | |
356ef1a1 TK |
397 | if (ret) |
398 | log_err("fio: io engine %s init failed.%s\n", | |
399 | td->io_ops->name, | |
400 | td->o.iodepth > 1 ? | |
401 | " Perhaps try reducing io depth?" : ""); | |
402 | else | |
403 | td->io_ops_init = 1; | |
7c973896 JA |
404 | if (!td->error) |
405 | td->error = ret; | |
eeb12160 JA |
406 | } |
407 | ||
408 | return ret; | |
8c16d840 | 409 | } |
755200a3 JA |
410 | |
411 | int td_io_commit(struct thread_data *td) | |
412 | { | |
f3e11d05 JA |
413 | int ret; |
414 | ||
ee56ad50 JA |
415 | dprint(FD_IO, "calling ->commit(), depth %d\n", td->cur_depth); |
416 | ||
d8005759 | 417 | if (!td->cur_depth || !td->io_u_queued) |
e1161c32 | 418 | return 0; |
cb5ab512 | 419 | |
3fd9efbc | 420 | io_u_mark_depth(td, td->io_u_queued); |
d8005759 | 421 | |
f3e11d05 JA |
422 | if (td->io_ops->commit) { |
423 | ret = td->io_ops->commit(td); | |
424 | if (ret) | |
425 | td_verror(td, -ret, "io commit"); | |
426 | } | |
3fd9efbc | 427 | |
422f9e4b RM |
428 | /* |
429 | * Reflect that events were submitted as async IO requests. | |
430 | */ | |
431 | td->io_u_in_flight += td->io_u_queued; | |
432 | td->io_u_queued = 0; | |
755200a3 JA |
433 | |
434 | return 0; | |
435 | } | |
b5af8293 JA |
436 | |
437 | int td_io_open_file(struct thread_data *td, struct fio_file *f) | |
438 | { | |
22a57ba8 JA |
439 | assert(!fio_file_open(f)); |
440 | assert(f->fd == -1); | |
966fcbd4 | 441 | assert(td->io_ops->open_file); |
22a57ba8 | 442 | |
413d6693 JA |
443 | if (td->io_ops->open_file(td, f)) { |
444 | if (td->error == EINVAL && td->o.odirect) | |
445 | log_err("fio: destination does not support O_DIRECT\n"); | |
5ec10eaa JA |
446 | if (td->error == EMFILE) { |
447 | log_err("fio: try reducing/setting openfiles (failed" | |
448 | " at %u of %u)\n", td->nr_open_files, | |
449 | td->o.nr_files); | |
450 | } | |
413d6693 | 451 | |
22a57ba8 JA |
452 | assert(f->fd == -1); |
453 | assert(!fio_file_open(f)); | |
413d6693 JA |
454 | return 1; |
455 | } | |
456 | ||
33c48814 | 457 | fio_file_reset(td, f); |
d6aed795 JA |
458 | fio_file_set_open(f); |
459 | fio_file_clear_closing(f); | |
c97bd0fa | 460 | disk_util_inc(f->du); |
d5707a35 JA |
461 | |
462 | td->nr_open_files++; | |
463 | get_file(f); | |
464 | ||
66159828 JA |
465 | if (f->filetype == FIO_TYPE_PIPE) { |
466 | if (td_random(td)) { | |
467 | log_err("fio: can't seek on pipes (no random io)\n"); | |
468 | goto err; | |
469 | } | |
470 | } | |
471 | ||
9b87f09b | 472 | if (td_ioengine_flagged(td, FIO_DISKLESSIO)) |
413d6693 JA |
473 | goto done; |
474 | ||
475 | if (td->o.invalidate_cache && file_invalidate_cache(td, f)) | |
476 | goto err; | |
477 | ||
ecb2083d | 478 | if (td->o.fadvise_hint != F_ADV_NONE && |
686fbd31 | 479 | (f->filetype == FIO_TYPE_BLOCK || f->filetype == FIO_TYPE_FILE)) { |
413d6693 JA |
480 | int flags; |
481 | ||
ecb2083d JA |
482 | if (td->o.fadvise_hint == F_ADV_TYPE) { |
483 | if (td_random(td)) | |
484 | flags = POSIX_FADV_RANDOM; | |
485 | else | |
486 | flags = POSIX_FADV_SEQUENTIAL; | |
487 | } else if (td->o.fadvise_hint == F_ADV_RANDOM) | |
413d6693 | 488 | flags = POSIX_FADV_RANDOM; |
ecb2083d | 489 | else if (td->o.fadvise_hint == F_ADV_SEQUENTIAL) |
413d6693 | 490 | flags = POSIX_FADV_SEQUENTIAL; |
ecb2083d JA |
491 | else { |
492 | log_err("fio: unknown fadvise type %d\n", | |
493 | td->o.fadvise_hint); | |
494 | flags = POSIX_FADV_NORMAL; | |
495 | } | |
413d6693 | 496 | |
ecc314ba | 497 | if (posix_fadvise(f->fd, f->file_offset, f->io_size, flags) < 0) { |
413d6693 JA |
498 | td_verror(td, errno, "fadvise"); |
499 | goto err; | |
500 | } | |
7bb48f84 | 501 | } |
ae8e559e JA |
502 | #ifdef FIO_HAVE_WRITE_HINT |
503 | if (fio_option_is_set(&td->o, write_hint) && | |
686fbd31 | 504 | (f->filetype == FIO_TYPE_BLOCK || f->filetype == FIO_TYPE_FILE)) { |
ae8e559e | 505 | uint64_t hint = td->o.write_hint; |
bd553af6 | 506 | int cmd; |
37659335 | 507 | |
bd553af6 JA |
508 | /* |
509 | * For direct IO, we just need/want to set the hint on | |
510 | * the file descriptor. For buffered IO, we need to set | |
511 | * it on the inode. | |
512 | */ | |
513 | if (td->o.odirect) | |
514 | cmd = F_SET_FILE_RW_HINT; | |
515 | else | |
516 | cmd = F_SET_RW_HINT; | |
517 | ||
518 | if (fcntl(f->fd, cmd, &hint) < 0) { | |
ae8e559e | 519 | td_verror(td, errno, "fcntl write hint"); |
37659335 JA |
520 | goto err; |
521 | } | |
522 | } | |
523 | #endif | |
a978ba68 | 524 | |
47534cda TK |
525 | if (td->o.odirect && !OS_O_DIRECT && fio_set_directio(td, f)) |
526 | goto err; | |
e116f2b9 | 527 | |
413d6693 | 528 | done: |
f29b25a3 | 529 | log_file(td, f, FIO_LOG_OPEN_FILE); |
413d6693 JA |
530 | return 0; |
531 | err: | |
c97bd0fa | 532 | disk_util_dec(f->du); |
b284075a JA |
533 | if (td->io_ops->close_file) |
534 | td->io_ops->close_file(td, f); | |
7bb48f84 | 535 | return 1; |
b5af8293 JA |
536 | } |
537 | ||
6977bcd0 | 538 | int td_io_close_file(struct thread_data *td, struct fio_file *f) |
b5af8293 | 539 | { |
d6aed795 | 540 | if (!fio_file_closing(f)) |
f29b25a3 JA |
541 | log_file(td, f, FIO_LOG_CLOSE_FILE); |
542 | ||
0ad920e7 JA |
543 | /* |
544 | * mark as closing, do real close when last io on it has completed | |
545 | */ | |
d6aed795 | 546 | fio_file_set_closing(f); |
0ad920e7 | 547 | |
c97bd0fa | 548 | disk_util_dec(f->du); |
cba5243b JA |
549 | |
550 | if (td->o.file_lock_mode != FILE_LOCK_NONE) | |
551 | unlock_file_all(td, f); | |
29c1349f | 552 | |
6977bcd0 | 553 | return put_file(td, f); |
b5af8293 | 554 | } |
df9c26b1 | 555 | |
38ef9c90 CF |
556 | int td_io_unlink_file(struct thread_data *td, struct fio_file *f) |
557 | { | |
558 | if (td->io_ops->unlink_file) | |
559 | return td->io_ops->unlink_file(td, f); | |
2442c935 JA |
560 | else { |
561 | int ret; | |
562 | ||
563 | ret = unlink(f->file_name); | |
564 | if (ret < 0) | |
565 | return errno; | |
566 | ||
567 | return 0; | |
568 | } | |
38ef9c90 CF |
569 | } |
570 | ||
df9c26b1 JA |
571 | int td_io_get_file_size(struct thread_data *td, struct fio_file *f) |
572 | { | |
573 | if (!td->io_ops->get_file_size) | |
574 | return 0; | |
575 | ||
576 | return td->io_ops->get_file_size(td, f); | |
577 | } | |
44f29692 | 578 | |
de890a1e SL |
579 | int fio_show_ioengine_help(const char *engine) |
580 | { | |
581 | struct flist_head *entry; | |
755dcbbd | 582 | struct ioengine_ops *io_ops; |
de890a1e SL |
583 | char *sep; |
584 | int ret = 1; | |
585 | ||
586 | if (!engine || !*engine) { | |
587 | log_info("Available IO engines:\n"); | |
588 | flist_for_each(entry, &engine_list) { | |
755dcbbd TK |
589 | io_ops = flist_entry(entry, struct ioengine_ops, list); |
590 | log_info("\t%s\n", io_ops->name); | |
de890a1e SL |
591 | } |
592 | return 0; | |
593 | } | |
594 | sep = strchr(engine, ','); | |
595 | if (sep) { | |
596 | *sep = 0; | |
597 | sep++; | |
598 | } | |
599 | ||
97bb54c9 | 600 | io_ops = __load_ioengine(engine); |
755dcbbd | 601 | if (!io_ops) { |
de890a1e SL |
602 | log_info("IO engine %s not found\n", engine); |
603 | return 1; | |
604 | } | |
605 | ||
755dcbbd TK |
606 | if (io_ops->options) |
607 | ret = show_cmd_help(io_ops->options, sep); | |
de890a1e | 608 | else |
755dcbbd | 609 | log_info("IO engine %s has no options\n", io_ops->name); |
de890a1e | 610 | |
de890a1e SL |
611 | return ret; |
612 | } |