blob: 4c609f2b88ae4c537dc90489241808acd711fa1f [file] [log] [blame]
Jens Axboeebac4652005-12-08 15:25:21 +01001/*
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>
Jens Axboe5c4e1db2006-06-07 14:17:08 +020015#include <string.h>
Jens Axboe2866c822006-10-09 15:57:48 +020016#include <dlfcn.h>
Bruce Cranecc314b2011-01-04 10:59:30 +010017#include <fcntl.h>
Jens Axboe0c6e7512007-02-22 11:19:39 +010018#include <assert.h>
Jens Axboe8c16d842006-10-20 11:48:33 +020019
Jens Axboeebac4652005-12-08 15:25:21 +010020#include "fio.h"
Jens Axboe7c9b1bc2009-06-03 09:25:57 +020021#include "diskutil.h"
Jens Axboeebac4652005-12-08 15:25:21 +010022
Jens Axboe01743ee2008-06-02 12:19:19 +020023static FLIST_HEAD(engine_list);
Jens Axboe5f350952006-11-07 15:20:59 +010024
Jens Axboe8c16d842006-10-20 11:48:33 +020025static int check_engine_ops(struct ioengine_ops *ops)
26{
Jens Axboe5f350952006-11-07 15:20:59 +010027 if (ops->version != FIO_IOOPS_VERSION) {
Jens Axboe5ec10ea2008-03-06 15:42:00 +010028 log_err("bad ioops version %d (want %d)\n", ops->version,
29 FIO_IOOPS_VERSION);
Jens Axboe5f350952006-11-07 15:20:59 +010030 return 1;
31 }
32
Jens Axboe36167d82007-02-18 05:41:31 +010033 if (!ops->queue) {
34 log_err("%s: no queue handler\n", ops->name);
35 return 1;
36 }
37
38 /*
39 * sync engines only need a ->queue()
40 */
41 if (ops->flags & FIO_SYNCIO)
42 return 0;
Jens Axboe5ec10ea2008-03-06 15:42:00 +010043
Jens Axboe8c16d842006-10-20 11:48:33 +020044 if (!ops->event) {
Jens Axboe36167d82007-02-18 05:41:31 +010045 log_err("%s: no event handler\n", ops->name);
Jens Axboe8c16d842006-10-20 11:48:33 +020046 return 1;
47 }
48 if (!ops->getevents) {
Jens Axboe36167d82007-02-18 05:41:31 +010049 log_err("%s: no getevents handler\n", ops->name);
Jens Axboe8c16d842006-10-20 11:48:33 +020050 return 1;
51 }
52 if (!ops->queue) {
Jens Axboe36167d82007-02-18 05:41:31 +010053 log_err("%s: no queue handler\n", ops->name);
Jens Axboe8c16d842006-10-20 11:48:33 +020054 return 1;
55 }
Jens Axboe5ec10ea2008-03-06 15:42:00 +010056
Jens Axboe8c16d842006-10-20 11:48:33 +020057 return 0;
58}
59
Jens Axboe5f350952006-11-07 15:20:59 +010060void unregister_ioengine(struct ioengine_ops *ops)
Jens Axboeebac4652005-12-08 15:25:21 +010061{
Jens Axboeee56ad52008-02-01 10:30:20 +010062 dprint(FD_IO, "ioengine %s unregistered\n", ops->name);
Jens Axboe01743ee2008-06-02 12:19:19 +020063 flist_del(&ops->list);
64 INIT_FLIST_HEAD(&ops->list);
Jens Axboe5f350952006-11-07 15:20:59 +010065}
66
Jens Axboeb2fdda42007-02-20 20:52:51 +010067void register_ioengine(struct ioengine_ops *ops)
Jens Axboe5f350952006-11-07 15:20:59 +010068{
Jens Axboeee56ad52008-02-01 10:30:20 +010069 dprint(FD_IO, "ioengine %s registered\n", ops->name);
Jens Axboe01743ee2008-06-02 12:19:19 +020070 INIT_FLIST_HEAD(&ops->list);
71 flist_add_tail(&ops->list, &engine_list);
Jens Axboe5f350952006-11-07 15:20:59 +010072}
73
74static struct ioengine_ops *find_ioengine(const char *name)
75{
76 struct ioengine_ops *ops;
Jens Axboe01743ee2008-06-02 12:19:19 +020077 struct flist_head *entry;
Jens Axboe2866c822006-10-09 15:57:48 +020078
Jens Axboe01743ee2008-06-02 12:19:19 +020079 flist_for_each(entry, &engine_list) {
80 ops = flist_entry(entry, struct ioengine_ops, list);
Jens Axboebc5b77a2007-02-28 09:32:54 +010081 if (!strcmp(name, ops->name))
Jens Axboe5f350952006-11-07 15:20:59 +010082 return ops;
83 }
84
85 return NULL;
86}
87
88static struct ioengine_ops *dlopen_ioengine(struct thread_data *td,
89 const char *engine_lib)
90{
91 struct ioengine_ops *ops;
92 void *dlhandle;
93
Jens Axboeee56ad52008-02-01 10:30:20 +010094 dprint(FD_IO, "dload engine %s\n", engine_lib);
95
Jens Axboe2866c822006-10-09 15:57:48 +020096 dlerror();
97 dlhandle = dlopen(engine_lib, RTLD_LAZY);
Jens Axboed4dbaaa2006-10-09 16:01:27 +020098 if (!dlhandle) {
Jens Axboee1161c32007-02-22 19:36:48 +010099 td_vmsg(td, -1, dlerror(), "dlopen");
Jens Axboed4dbaaa2006-10-09 16:01:27 +0200100 return NULL;
101 }
Jens Axboe2866c822006-10-09 15:57:48 +0200102
Jens Axboeda51c052006-11-07 16:02:11 +0100103 /*
104 * Unlike the included modules, external engines should have a
105 * non-static ioengine structure that we can reference.
106 */
Jens Axboe2866c822006-10-09 15:57:48 +0200107 ops = dlsym(dlhandle, "ioengine");
Jens Axboed4dbaaa2006-10-09 16:01:27 +0200108 if (!ops) {
Jens Axboee1161c32007-02-22 19:36:48 +0100109 td_vmsg(td, -1, dlerror(), "dlsym");
Jens Axboed4dbaaa2006-10-09 16:01:27 +0200110 dlclose(dlhandle);
111 return NULL;
112 }
Jens Axboe2866c822006-10-09 15:57:48 +0200113
Jens Axboe5f350952006-11-07 15:20:59 +0100114 ops->dlhandle = dlhandle;
115 return ops;
116}
117
118struct ioengine_ops *load_ioengine(struct thread_data *td, const char *name)
119{
120 struct ioengine_ops *ops, *ret;
121 char engine[16];
122
Jens Axboeee56ad52008-02-01 10:30:20 +0100123 dprint(FD_IO, "load ioengine %s\n", name);
124
Jens Axboe5f350952006-11-07 15:20:59 +0100125 strncpy(engine, name, sizeof(engine) - 1);
126
127 /*
128 * linux libaio has alias names, so convert to what we want
129 */
130 if (!strncmp(engine, "linuxaio", 8) || !strncmp(engine, "aio", 3))
131 strcpy(engine, "libaio");
132
133 ops = find_ioengine(engine);
134 if (!ops)
135 ops = dlopen_ioengine(td, name);
136
137 if (!ops) {
138 log_err("fio: engine %s not loadable\n", name);
Jens Axboeb902ceb2006-10-09 16:11:45 +0200139 return NULL;
140 }
141
Jens Axboe8c16d842006-10-20 11:48:33 +0200142 /*
143 * Check that the required methods are there.
144 */
Jens Axboe5f350952006-11-07 15:20:59 +0100145 if (check_engine_ops(ops))
Jens Axboe8c16d842006-10-20 11:48:33 +0200146 return NULL;
Jens Axboe8c16d842006-10-20 11:48:33 +0200147
Jens Axboe84585002006-10-19 20:26:22 +0200148 ret = malloc(sizeof(*ret));
149 memcpy(ret, ops, sizeof(*ret));
150 ret->data = NULL;
Jens Axboe84585002006-10-19 20:26:22 +0200151
152 return ret;
Jens Axboeebac4652005-12-08 15:25:21 +0100153}
154
Steven Langde890a12011-11-09 14:03:34 +0100155/*
156 * For cleaning up an ioengine which never made it to init().
157 */
158void free_ioengine(struct thread_data *td)
159{
160 dprint(FD_IO, "free ioengine %s\n", td->io_ops->name);
161
162 if (td->eo && td->io_ops->options) {
163 options_free(td->io_ops->options, td->eo);
164 free(td->eo);
165 td->eo = NULL;
166 }
167
168 if (td->io_ops->dlhandle)
169 dlclose(td->io_ops->dlhandle);
170
171 free(td->io_ops);
172 td->io_ops = NULL;
173}
174
Jens Axboe2866c822006-10-09 15:57:48 +0200175void close_ioengine(struct thread_data *td)
Jens Axboeebac4652005-12-08 15:25:21 +0100176{
Jens Axboeee56ad52008-02-01 10:30:20 +0100177 dprint(FD_IO, "close ioengine %s\n", td->io_ops->name);
178
Jens Axboe2992b052008-05-30 22:07:12 +0200179 if (td->io_ops->cleanup) {
Jens Axboe2866c822006-10-09 15:57:48 +0200180 td->io_ops->cleanup(td);
Jens Axboe2992b052008-05-30 22:07:12 +0200181 td->io_ops->data = NULL;
182 }
Jens Axboeebac4652005-12-08 15:25:21 +0100183
Steven Langde890a12011-11-09 14:03:34 +0100184 free_ioengine(td);
Jens Axboeb990b5c2006-09-14 09:48:22 +0200185}
Jens Axboe10ba5352006-10-20 11:39:27 +0200186
187int td_io_prep(struct thread_data *td, struct io_u *io_u)
188{
Jens Axboeee56ad52008-02-01 10:30:20 +0100189 dprint_io_u(io_u, "prep");
Jens Axboe7101d9c2007-09-12 13:12:39 +0200190 fio_ro_check(td, io_u);
191
Jens Axboe4d4e80f2008-03-04 10:18:56 +0100192 lock_file(td, io_u->file, io_u->ddir);
Jens Axboeb2bd2bd2008-03-01 18:19:52 +0100193
Jens Axboe2ba1c292008-02-01 13:16:38 +0100194 if (td->io_ops->prep) {
195 int ret = td->io_ops->prep(td, io_u);
196
197 dprint(FD_IO, "->prep(%p)=%d\n", io_u, ret);
Jens Axboeb2bd2bd2008-03-01 18:19:52 +0100198 if (ret)
Jens Axboe4d4e80f2008-03-04 10:18:56 +0100199 unlock_file(td, io_u->file);
Jens Axboe2ba1c292008-02-01 13:16:38 +0100200 return ret;
201 }
Jens Axboe10ba5352006-10-20 11:39:27 +0200202
203 return 0;
204}
205
Jens Axboee7d2e612007-12-11 10:49:39 +0100206int td_io_getevents(struct thread_data *td, unsigned int min, unsigned int max,
Jens Axboe10ba5352006-10-20 11:39:27 +0200207 struct timespec *t)
208{
Jens Axboeee56ad52008-02-01 10:30:20 +0100209 int r = 0;
210
Jens Axboeface81b2007-02-26 10:40:03 +0100211 if (min > 0 && td->io_ops->commit) {
Jens Axboeee56ad52008-02-01 10:30:20 +0100212 r = td->io_ops->commit(td);
Jens Axboeface81b2007-02-26 10:40:03 +0100213 if (r < 0)
Jens Axboeee56ad52008-02-01 10:30:20 +0100214 goto out;
Jens Axboeface81b2007-02-26 10:40:03 +0100215 }
Jens Axboe49504212008-06-05 09:03:30 +0200216 if (max > td->cur_depth)
217 max = td->cur_depth;
218 if (min > max)
219 max = min;
Jens Axboe36167d82007-02-18 05:41:31 +0100220
Jens Axboeee56ad52008-02-01 10:30:20 +0100221 r = 0;
Jens Axboe49504212008-06-05 09:03:30 +0200222 if (max && td->io_ops->getevents)
Jens Axboeee56ad52008-02-01 10:30:20 +0100223 r = td->io_ops->getevents(td, min, max, t);
224out:
Ryan Marchand422f9e42012-01-31 14:05:32 +0100225 if (r >= 0) {
226 /*
227 * Reflect that our submitted requests were retrieved with
228 * whatever OS async calls are in the underlying engine.
229 */
230 td->io_u_in_flight -= r;
Jens Axboe838bc702008-05-22 13:08:23 +0200231 io_u_mark_complete(td, r);
Ryan Marchand422f9e42012-01-31 14:05:32 +0100232 } else
Jens Axboe7c639b12010-03-19 08:48:05 +0100233 td_verror(td, r, "get_events");
Jens Axboef3e11d02010-03-18 19:31:06 +0100234
Jens Axboeee56ad52008-02-01 10:30:20 +0100235 dprint(FD_IO, "getevents: %d\n", r);
236 return r;
Jens Axboe10ba5352006-10-20 11:39:27 +0200237}
238
239int td_io_queue(struct thread_data *td, struct io_u *io_u)
240{
Jens Axboe7e77dd02007-02-20 10:57:34 +0100241 int ret;
242
Jens Axboeee56ad52008-02-01 10:30:20 +0100243 dprint_io_u(io_u, "queue");
Jens Axboe7101d9c2007-09-12 13:12:39 +0200244 fio_ro_check(td, io_u);
245
Jens Axboe0c6e7512007-02-22 11:19:39 +0100246 assert((io_u->flags & IO_U_F_FLIGHT) == 0);
247 io_u->flags |= IO_U_F_FLIGHT;
248
Jens Axboed6aed792009-06-03 08:41:15 +0200249 assert(fio_file_open(io_u->file));
Jens Axboe3d7b4852007-03-13 14:50:28 +0100250
Jens Axboe11786802007-03-05 18:33:22 +0100251 io_u->error = 0;
252 io_u->resid = 0;
253
Jens Axboe433afcb2007-02-22 10:39:01 +0100254 if (td->io_ops->flags & FIO_SYNCIO) {
Jens Axboe12d9d842008-10-16 21:26:10 +0200255 if (fio_fill_issue_time(td))
Jens Axboe9520ebb2008-10-16 21:03:27 +0200256 fio_gettime(&io_u->issue_time, NULL);
Jens Axboed0c15322008-10-16 20:33:51 +0200257
258 /*
259 * only used for iolog
260 */
261 if (td->o.read_iolog_file)
262 memcpy(&td->last_issue, &io_u->issue_time,
Jens Axboe5ec10ea2008-03-06 15:42:00 +0100263 sizeof(struct timeval));
Jens Axboe433afcb2007-02-22 10:39:01 +0100264 }
265
Jens Axboeff58fce2010-08-25 12:02:08 +0200266 if (ddir_rw(io_u->ddir))
Jens Axboe755200a2007-02-19 13:08:12 +0100267 td->io_issues[io_u->ddir]++;
268
Jens Axboe7e77dd02007-02-20 10:57:34 +0100269 ret = td->io_ops->queue(td, io_u);
Jens Axboe5aeb77d2007-02-20 11:34:54 +0100270
Jens Axboe4d4e80f2008-03-04 10:18:56 +0100271 unlock_file(td, io_u->file);
Jens Axboeb2bd2bd2008-03-01 18:19:52 +0100272
Jens Axboecb211682009-07-03 08:38:50 +0200273 /*
274 * Add warning for O_DIRECT so that users have an easier time
275 * spotting potentially bad alignment. If this triggers for the first
276 * IO, then it's likely an alignment problem or because the host fs
277 * does not support O_DIRECT
278 */
Jens Axboeff58fce2010-08-25 12:02:08 +0200279 if (io_u->error == EINVAL && td->io_issues[io_u->ddir & 1] == 1 &&
Jens Axboecb211682009-07-03 08:38:50 +0200280 td->o.odirect) {
281 log_info("fio: first direct IO errored. File system may not "
282 "support direct IO, or iomem_align= is bad.\n");
283 }
284
Jens Axboe838bc702008-05-22 13:08:23 +0200285 if (!td->io_ops->commit) {
286 io_u_mark_submit(td, 1);
287 io_u_mark_complete(td, 1);
288 }
289
Jens Axboed8005752008-05-15 09:49:09 +0200290 if (ret == FIO_Q_COMPLETED) {
Jens Axboeff58fce2010-08-25 12:02:08 +0200291 if (ddir_rw(io_u->ddir)) {
Jens Axboed8005752008-05-15 09:49:09 +0200292 io_u_mark_depth(td, 1);
293 td->ts.total_io_u[io_u->ddir]++;
Jens Axboe0d29de82010-09-01 13:54:15 +0200294 } else if (io_u->ddir == DDIR_TRIM)
295 td->ts.total_io_u[2]++;
Jens Axboed8005752008-05-15 09:49:09 +0200296 } else if (ret == FIO_Q_QUEUED) {
Jens Axboeeb7c8ae2007-02-26 14:45:12 +0100297 int r;
298
Jens Axboeff58fce2010-08-25 12:02:08 +0200299 if (ddir_rw(io_u->ddir)) {
Jens Axboed8005752008-05-15 09:49:09 +0200300 td->io_u_queued++;
301 td->ts.total_io_u[io_u->ddir]++;
302 }
303
304 if (td->io_u_queued >= td->o.iodepth_batch) {
Jens Axboeeb7c8ae2007-02-26 14:45:12 +0100305 r = td_io_commit(td);
306 if (r < 0)
307 return r;
308 }
309 }
Jens Axboecb5ab512007-02-26 12:57:09 +0100310
Jens Axboe433afcb2007-02-22 10:39:01 +0100311 if ((td->io_ops->flags & FIO_SYNCIO) == 0) {
Jens Axboe12d9d842008-10-16 21:26:10 +0200312 if (fio_fill_issue_time(td))
Jens Axboe9520ebb2008-10-16 21:03:27 +0200313 fio_gettime(&io_u->issue_time, NULL);
Jens Axboed0c15322008-10-16 20:33:51 +0200314
315 /*
316 * only used for iolog
317 */
318 if (td->o.read_iolog_file)
319 memcpy(&td->last_issue, &io_u->issue_time,
320 sizeof(struct timeval));
Jens Axboe433afcb2007-02-22 10:39:01 +0100321 }
322
Jens Axboe7e77dd02007-02-20 10:57:34 +0100323 return ret;
Jens Axboe10ba5352006-10-20 11:39:27 +0200324}
Jens Axboe8c16d842006-10-20 11:48:33 +0200325
326int td_io_init(struct thread_data *td)
327{
Jens Axboeeeb12162007-03-20 10:47:45 +0100328 int ret = 0;
Jens Axboe8c16d842006-10-20 11:48:33 +0200329
Jens Axboeeeb12162007-03-20 10:47:45 +0100330 if (td->io_ops->init) {
331 ret = td->io_ops->init(td);
Jens Axboe5ec10ea2008-03-06 15:42:00 +0100332 if (ret && td->o.iodepth > 1) {
333 log_err("fio: io engine init failed. Perhaps try"
334 " reducing io depth?\n");
335 }
Jens Axboe7c973892011-01-22 15:11:03 -0700336 if (!td->error)
337 td->error = ret;
Jens Axboeeeb12162007-03-20 10:47:45 +0100338 }
339
340 return ret;
Jens Axboe8c16d842006-10-20 11:48:33 +0200341}
Jens Axboe755200a2007-02-19 13:08:12 +0100342
343int td_io_commit(struct thread_data *td)
344{
Jens Axboef3e11d02010-03-18 19:31:06 +0100345 int ret;
346
Jens Axboeee56ad52008-02-01 10:30:20 +0100347 dprint(FD_IO, "calling ->commit(), depth %d\n", td->cur_depth);
348
Jens Axboed8005752008-05-15 09:49:09 +0200349 if (!td->cur_depth || !td->io_u_queued)
Jens Axboee1161c32007-02-22 19:36:48 +0100350 return 0;
Jens Axboecb5ab512007-02-26 12:57:09 +0100351
Ryan Marchand422f9e42012-01-31 14:05:32 +0100352 io_u_mark_depth(td, td->io_u_queued);
Jens Axboed8005752008-05-15 09:49:09 +0200353
Jens Axboef3e11d02010-03-18 19:31:06 +0100354 if (td->io_ops->commit) {
355 ret = td->io_ops->commit(td);
356 if (ret)
357 td_verror(td, -ret, "io commit");
358 }
Ryan Marchand422f9e42012-01-31 14:05:32 +0100359
360 /*
361 * Reflect that events were submitted as async IO requests.
362 */
363 td->io_u_in_flight += td->io_u_queued;
364 td->io_u_queued = 0;
Jens Axboe755200a2007-02-19 13:08:12 +0100365
366 return 0;
367}
Jens Axboeb5af8292007-03-08 12:43:13 +0100368
369int td_io_open_file(struct thread_data *td, struct fio_file *f)
370{
Jens Axboe22a57ba2009-06-09 14:34:35 +0200371 assert(!fio_file_open(f));
372 assert(f->fd == -1);
373
Jens Axboe413d6692007-03-27 15:38:21 +0200374 if (td->io_ops->open_file(td, f)) {
375 if (td->error == EINVAL && td->o.odirect)
376 log_err("fio: destination does not support O_DIRECT\n");
Jens Axboe5ec10ea2008-03-06 15:42:00 +0100377 if (td->error == EMFILE) {
378 log_err("fio: try reducing/setting openfiles (failed"
379 " at %u of %u)\n", td->nr_open_files,
380 td->o.nr_files);
381 }
Jens Axboeb5af8292007-03-08 12:43:13 +0100382
Jens Axboe22a57ba2009-06-09 14:34:35 +0200383 assert(f->fd == -1);
384 assert(!fio_file_open(f));
Jens Axboe413d6692007-03-27 15:38:21 +0200385 return 1;
Jens Axboe7bb48f82007-03-27 15:30:28 +0200386 }
Jens Axboea978ba62007-03-08 14:29:03 +0100387
Jens Axboed5707a32008-06-04 15:13:02 +0200388 fio_file_reset(f);
Jens Axboed6aed792009-06-03 08:41:15 +0200389 fio_file_set_open(f);
390 fio_file_clear_closing(f);
Jens Axboec97bd0f2009-05-27 13:11:20 +0200391 disk_util_inc(f->du);
Jens Axboed5707a32008-06-04 15:13:02 +0200392
393 td->nr_open_files++;
394 get_file(f);
395
Jens Axboe66159822007-04-16 21:54:24 +0200396 if (f->filetype == FIO_TYPE_PIPE) {
397 if (td_random(td)) {
398 log_err("fio: can't seek on pipes (no random io)\n");
399 goto err;
400 }
401 }
402
Jens Axboe413d6692007-03-27 15:38:21 +0200403 if (td->io_ops->flags & FIO_DISKLESSIO)
404 goto done;
405
406 if (td->o.invalidate_cache && file_invalidate_cache(td, f))
407 goto err;
408
Jens Axboe66159822007-04-16 21:54:24 +0200409 if (td->o.fadvise_hint &&
410 (f->filetype == FIO_TYPE_BD || f->filetype == FIO_TYPE_FILE)) {
Jens Axboe413d6692007-03-27 15:38:21 +0200411 int flags;
412
413 if (td_random(td))
414 flags = POSIX_FADV_RANDOM;
415 else
416 flags = POSIX_FADV_SEQUENTIAL;
417
Bruce Cranecc314b2011-01-04 10:59:30 +0100418 if (posix_fadvise(f->fd, f->file_offset, f->io_size, flags) < 0) {
Jens Axboe413d6692007-03-27 15:38:21 +0200419 td_verror(td, errno, "fadvise");
420 goto err;
421 }
422 }
423
Jens Axboee116f2b2008-06-04 15:14:24 +0200424#ifdef FIO_OS_DIRECTIO
425 /*
426 * Some OS's have a distinct call to mark the file non-buffered,
427 * instead of using O_DIRECT (Solaris)
428 */
429 if (td->o.odirect) {
430 int ret = fio_set_odirect(f->fd);
431
432 if (ret) {
433 td_verror(td, ret, "fio_set_odirect");
Jens Axboe78e51c72010-11-23 11:12:39 +0100434 log_err("fio: the file system does not seem to support direct IO\n");
Jens Axboee116f2b2008-06-04 15:14:24 +0200435 goto err;
436 }
437 }
438#endif
439
Jens Axboe413d6692007-03-27 15:38:21 +0200440done:
Jens Axboef29b25a2007-07-23 08:56:43 +0200441 log_file(td, f, FIO_LOG_OPEN_FILE);
Jens Axboe413d6692007-03-27 15:38:21 +0200442 return 0;
443err:
Jens Axboec97bd0f2009-05-27 13:11:20 +0200444 disk_util_dec(f->du);
Jens Axboeb2840752007-04-12 12:57:27 +0200445 if (td->io_ops->close_file)
446 td->io_ops->close_file(td, f);
Jens Axboe7bb48f82007-03-27 15:30:28 +0200447 return 1;
Jens Axboeb5af8292007-03-08 12:43:13 +0100448}
449
Jens Axboe6977bcd2008-03-01 15:55:36 +0100450int td_io_close_file(struct thread_data *td, struct fio_file *f)
Jens Axboeb5af8292007-03-08 12:43:13 +0100451{
Jens Axboed6aed792009-06-03 08:41:15 +0200452 if (!fio_file_closing(f))
Jens Axboef29b25a2007-07-23 08:56:43 +0200453 log_file(td, f, FIO_LOG_CLOSE_FILE);
454
Jens Axboe0ad920e2007-03-13 11:06:45 +0100455 /*
456 * mark as closing, do real close when last io on it has completed
457 */
Jens Axboed6aed792009-06-03 08:41:15 +0200458 fio_file_set_closing(f);
Jens Axboe0ad920e2007-03-13 11:06:45 +0100459
Jens Axboec97bd0f2009-05-27 13:11:20 +0200460 disk_util_dec(f->du);
Jens Axboe4d4e80f2008-03-04 10:18:56 +0100461 unlock_file_all(td, f);
Jens Axboe29c13492008-03-01 19:25:20 +0100462
Jens Axboe6977bcd2008-03-01 15:55:36 +0100463 return put_file(td, f);
Jens Axboeb5af8292007-03-08 12:43:13 +0100464}
Jens Axboedf9c26b2009-03-05 10:13:58 +0100465
466int td_io_get_file_size(struct thread_data *td, struct fio_file *f)
467{
468 if (!td->io_ops->get_file_size)
469 return 0;
470
471 return td->io_ops->get_file_size(td, f);
472}
Jens Axboe44f29692010-03-09 20:09:44 +0100473
Jens Axboe0a28ecd2010-03-09 21:40:38 +0100474static int do_sync_file_range(struct thread_data *td, struct fio_file *f)
Jens Axboe44f29692010-03-09 20:09:44 +0100475{
476 off64_t offset, nbytes;
477
478 offset = f->first_write;
479 nbytes = f->last_write - f->first_write;
480
Jens Axboe3843deb2010-03-09 20:41:15 +0100481 if (!nbytes)
482 return 0;
Jens Axboe44f29692010-03-09 20:09:44 +0100483
Jens Axboe3843deb2010-03-09 20:41:15 +0100484 return sync_file_range(f->fd, offset, nbytes, td->o.sync_file_range);
Jens Axboe44f29692010-03-09 20:09:44 +0100485}
Jens Axboe0a28ecd2010-03-09 21:40:38 +0100486
487int do_io_u_sync(struct thread_data *td, struct io_u *io_u)
488{
489 int ret;
490
491 if (io_u->ddir == DDIR_SYNC) {
492 ret = fsync(io_u->file->fd);
493 } else if (io_u->ddir == DDIR_DATASYNC) {
494#ifdef FIO_HAVE_FDATASYNC
495 ret = fdatasync(io_u->file->fd);
496#else
497 ret = io_u->xfer_buflen;
498 io_u->error = EINVAL;
499#endif
500 } else if (io_u->ddir == DDIR_SYNC_FILE_RANGE)
501 ret = do_sync_file_range(td, io_u->file);
502 else {
503 ret = io_u->xfer_buflen;
504 io_u->error = EINVAL;
505 }
506
Jens Axboecb849a72010-03-09 21:44:55 +0100507 if (ret < 0)
508 io_u->error = errno;
509
Jens Axboe0a28ecd2010-03-09 21:40:38 +0100510 return ret;
511}
Jens Axboea5f30272010-07-19 16:19:55 -0600512
513int do_io_u_trim(struct thread_data *td, struct io_u *io_u)
514{
515#ifndef FIO_HAVE_TRIM
516 io_u->error = EINVAL;
Jens Axboeff58fce2010-08-25 12:02:08 +0200517 return 0;
Jens Axboea5f30272010-07-19 16:19:55 -0600518#else
519 struct fio_file *f = io_u->file;
520 int ret;
521
Jens Axboec6404a42010-09-24 19:36:34 +0200522 ret = os_trim(f->fd, io_u->offset, io_u->xfer_buflen);
Jens Axboea5f30272010-07-19 16:19:55 -0600523 if (!ret)
Jens Axboeff58fce2010-08-25 12:02:08 +0200524 return io_u->xfer_buflen;;
Jens Axboea5f30272010-07-19 16:19:55 -0600525
Jens Axboeff58fce2010-08-25 12:02:08 +0200526 io_u->error = ret;
527 return 0;
Jens Axboea5f30272010-07-19 16:19:55 -0600528#endif
529}
Steven Langde890a12011-11-09 14:03:34 +0100530
531int fio_show_ioengine_help(const char *engine)
532{
533 struct flist_head *entry;
534 struct thread_data td;
535 char *sep;
536 int ret = 1;
537
538 if (!engine || !*engine) {
539 log_info("Available IO engines:\n");
540 flist_for_each(entry, &engine_list) {
541 td.io_ops = flist_entry(entry, struct ioengine_ops,
542 list);
543 log_info("\t%s\n", td.io_ops->name);
544 }
545 return 0;
546 }
547 sep = strchr(engine, ',');
548 if (sep) {
549 *sep = 0;
550 sep++;
551 }
552
553 memset(&td, 0, sizeof(td));
554
555 td.io_ops = load_ioengine(&td, engine);
556 if (!td.io_ops) {
557 log_info("IO engine %s not found\n", engine);
558 return 1;
559 }
560
561 if (td.io_ops->options)
562 ret = show_cmd_help(td.io_ops->options, sep);
563 else
564 log_info("IO engine %s has no options\n", td.io_ops->name);
565
566 free_ioengine(&td);
567
568 return ret;
569}