Bump max job count to 2048
[fio.git] / fio.h
CommitLineData
ebac4655
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1#ifndef FIO_H
2#define FIO_H
3
4#include <sched.h>
5#include <limits.h>
6#include <pthread.h>
7#include <sys/time.h>
8#include <sys/resource.h>
3c39a379
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9#include <errno.h>
10#include <stdlib.h>
11#include <stdio.h>
6d6f031f 12#include <unistd.h>
34cfcdaf 13#include <string.h>
cd14cc10 14#include <inttypes.h>
7101d9c2 15#include <assert.h>
ebac4655 16
ecc314ba
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17struct thread_data;
18
317b95d0 19#include "compiler/compiler.h"
01743ee1 20#include "flist.h"
e2887563 21#include "fifo.h"
4b87898e 22#include "rbtree.h"
317b95d0
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23#include "arch/arch.h"
24#include "os/os.h"
07739b57 25#include "mutex.h"
a3d741fa
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26#include "log.h"
27#include "debug.h"
d6aed795
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28#include "file.h"
29#include "io_ddir.h"
dcefb588 30#include "ioengine.h"
5995a6a4 31#include "iolog.h"
c5c8bd5c 32#include "helpers.h"
07b3232d 33#include "options.h"
7eb36574 34#include "profile.h"
c223da83 35#include "time.h"
bf2e821a 36#include "lib/getopt.h"
2615cc4b 37#include "lib/rand.h"
ebac4655 38
609342ff
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39#ifdef FIO_HAVE_GUASI
40#include <guasi.h>
41#endif
42
417f0068
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43#ifdef FIO_HAVE_SOLARISAIO
44#include <sys/asynch.h>
45#endif
46
ebac4655 47struct group_run_stats {
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48 unsigned long long max_run[2], min_run[2];
49 unsigned long long max_bw[2], min_bw[2];
e9b2a3fa 50 unsigned long long io_kb[2];
9104f874 51 unsigned long long agg[2];
90fef2d1 52 unsigned int kb_base;
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53};
54
e9c047a0
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55/*
56 * What type of allocation to use for io buffers
57 */
58enum fio_memtype {
59 MEM_MALLOC = 0, /* ordinary malloc */
60 MEM_SHM, /* use shared memory segments */
74b025b0 61 MEM_SHMHUGE, /* use shared memory segments with huge pages */
e9c047a0 62 MEM_MMAP, /* use anonynomous mmap */
d0bdaf49 63 MEM_MMAPHUGE, /* memory mapped huge file */
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64};
65
38dad62d
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66/*
67 * offset generator types
68 */
69enum {
70 RW_SEQ_SEQ = 0,
71 RW_SEQ_IDENT,
72};
73
b2560f3c
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74/*
75 * How many depth levels to log
76 */
bb067558 77#define FIO_IO_U_MAP_NR 7
a9a18a3f
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78#define FIO_IO_U_LAT_U_NR 10
79#define FIO_IO_U_LAT_M_NR 12
b2560f3c 80
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81#define MAX_PATTERN_SIZE 512
82
079ad09b 83struct thread_stat {
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84 char *name;
85 char *verror;
86 int error;
87 int groupid;
88 pid_t pid;
89 char *description;
6586ee89 90 int members;
756867bd 91
079ad09b
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92 struct io_log *slat_log;
93 struct io_log *clat_log;
02af0988 94 struct io_log *lat_log;
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95 struct io_log *bw_log;
96
97 /*
98 * bandwidth and latency stats
99 */
100 struct io_stat clat_stat[2]; /* completion latency */
101 struct io_stat slat_stat[2]; /* submission latency */
02af0988 102 struct io_stat lat_stat[2]; /* total latency */
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103 struct io_stat bw_stat[2]; /* bandwidth stats */
104
105 unsigned long long stat_io_bytes[2];
106 struct timeval stat_sample_time[2];
107
108 /*
109 * fio system usage accounting
110 */
111 struct rusage ru_start;
112 struct rusage ru_end;
113 unsigned long usr_time;
114 unsigned long sys_time;
115 unsigned long ctx;
81887d5d 116 unsigned long minf, majf;
079ad09b 117
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118 /*
119 * IO depth and latency stats
120 */
121 unsigned int io_u_map[FIO_IO_U_MAP_NR];
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122 unsigned int io_u_submit[FIO_IO_U_MAP_NR];
123 unsigned int io_u_complete[FIO_IO_U_MAP_NR];
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124 unsigned int io_u_lat_u[FIO_IO_U_LAT_U_NR];
125 unsigned int io_u_lat_m[FIO_IO_U_LAT_M_NR];
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126 unsigned long total_io_u[3];
127 unsigned long short_io_u[3];
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128 unsigned long total_submit;
129 unsigned long total_complete;
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130
131 unsigned long long io_bytes[2];
cda99fa0 132 unsigned long long runtime[2];
756867bd 133 unsigned long total_run_time;
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134
135 /*
136 * IO Error related stats
137 */
138 unsigned continue_on_error;
139 unsigned long total_err_count;
140 int first_error;
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141
142 unsigned int kb_base;
b2560f3c 143};
71619dc2 144
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145struct bssplit {
146 unsigned int bs;
147 unsigned char perc;
148};
149
2dc1bbeb 150struct thread_options {
b1ec1da6 151 int pad;
61697c37 152 char *description;
b4692828 153 char *name;
ef899b63 154 char *directory;
13f8e2d2 155 char *filename;
2dc1bbeb 156 char *opendir;
09629a90 157 char *ioengine;
413dd459 158 enum td_ddir td_ddir;
38dad62d 159 unsigned int rw_seq;
90fef2d1 160 unsigned int kb_base;
5736c10d 161 unsigned int ddir_seq_nr;
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162 unsigned int iodepth;
163 unsigned int iodepth_low;
164 unsigned int iodepth_batch;
4950421a 165 unsigned int iodepth_batch_complete;
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166
167 unsigned long long size;
aa31f1f1 168 unsigned int fill_device;
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169 unsigned long long file_size_low;
170 unsigned long long file_size_high;
171 unsigned long long start_offset;
172
173 unsigned int bs[2];
2b7a01d0 174 unsigned int ba[2];
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175 unsigned int min_bs[2];
176 unsigned int max_bs[2];
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177 struct bssplit *bssplit[2];
178 unsigned int bssplit_nr[2];
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179
180 unsigned int nr_files;
181 unsigned int open_files;
4d4e80f2 182 enum file_lock_mode file_lock_mode;
29c1349f 183 unsigned int lockfile_batch;
e9c047a0 184
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185 unsigned int odirect;
186 unsigned int invalidate_cache;
187 unsigned int create_serialize;
188 unsigned int create_fsync;
814452bd 189 unsigned int create_on_open;
9158d2f7 190 unsigned int end_fsync;
afad68f7 191 unsigned int pre_read;
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192 unsigned int sync_io;
193 unsigned int verify;
e84c73a8 194 unsigned int do_verify;
160b966d 195 unsigned int verifysort;
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196 unsigned int verify_interval;
197 unsigned int verify_offset;
0e92f873 198 char verify_pattern[MAX_PATTERN_SIZE];
90059d65 199 unsigned int verify_pattern_bytes;
a12a3b4d 200 unsigned int verify_fatal;
b463e936 201 unsigned int verify_dump;
e8462bd8 202 unsigned int verify_async;
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203 unsigned long long verify_backlog;
204 unsigned int verify_batch;
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205 unsigned int use_thread;
206 unsigned int unlink;
207 unsigned int do_disk_util;
208 unsigned int override_sync;
209 unsigned int rand_repeatable;
2615cc4b 210 unsigned int use_os_rand;
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211 unsigned int write_lat_log;
212 unsigned int write_bw_log;
bb8895e0 213 unsigned int norandommap;
2b386d25 214 unsigned int softrandommap;
690adba3 215 unsigned int bs_unaligned;
ebb1415f 216 unsigned int fsync_on_close;
e9c047a0 217
56bb17f2 218 unsigned int hugepage_size;
a00735e6 219 unsigned int rw_min_bs;
ebac4655 220 unsigned int thinktime;
48097d5c 221 unsigned int thinktime_spin;
9c1f7434 222 unsigned int thinktime_blocks;
ebac4655 223 unsigned int fsync_blocks;
5f9099ea 224 unsigned int fdatasync_blocks;
1ef2b6be 225 unsigned int barrier_blocks;
a5737c93 226 unsigned long start_delay;
0db26797 227 unsigned long long timeout;
721938ae 228 unsigned long long ramp_time;
ebac4655 229 unsigned int overwrite;
ebac4655 230 unsigned int bw_avg_time;
ebac4655 231 unsigned int loops;
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232 unsigned long long zone_size;
233 unsigned long long zone_skip;
e9c047a0 234 enum fio_memtype mem_type;
d529ee19 235 unsigned int mem_align;
2dc1bbeb 236
ebac4655 237 unsigned int stonewall;
b3d62a75 238 unsigned int new_group;
ebac4655 239 unsigned int numjobs;
ebac4655 240 os_cpu_mask_t cpumask;
375b2695 241 unsigned int cpumask_set;
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242 os_cpu_mask_t verify_cpumask;
243 unsigned int verify_cpumask_set;
aea47d44 244 unsigned int iolog;
a6ccc7be 245 unsigned int rwmixcycle;
e47f799f 246 unsigned int rwmix[2];
b6f4d880 247 unsigned int nice;
0aabe160 248 unsigned int file_service_type;
b2560f3c 249 unsigned int group_reporting;
d2f3ac35 250 unsigned int fadvise_hint;
7bc8c2cf 251 unsigned int fallocate;
e9459e5a 252 unsigned int zero_buffers;
5973cafb 253 unsigned int refill_buffers;
cf4464ca 254 unsigned int time_based;
02af0988 255 unsigned int disable_lat;
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256 unsigned int disable_clat;
257 unsigned int disable_slat;
258 unsigned int disable_bw;
993bf48b 259 unsigned int gtod_reduce;
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260 unsigned int gtod_cpu;
261 unsigned int gtod_offload;
c223da83 262 enum fio_cs clocksource;
64bbb865 263 unsigned int no_stall;
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264 unsigned int trim_percentage;
265 unsigned int trim_batch;
266 unsigned int trim_zero;
267 unsigned long long trim_backlog;
aea47d44 268
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269 char *read_iolog_file;
270 char *write_iolog_file;
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271 char *bw_log_file;
272 char *lat_log_file;
d1c46c04 273 char *replay_redirect;
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274
275 /*
276 * Pre-run and post-run shell
277 */
278 char *exec_prerun;
279 char *exec_postrun;
280
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281 unsigned int rate[2];
282 unsigned int ratemin[2];
2dc1bbeb 283 unsigned int ratecycle;
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284 unsigned int rate_iops[2];
285 unsigned int rate_iops_min[2];
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286
287 char *ioscheduler;
288
289 /*
290 * CPU "io" cycle burner
291 */
292 unsigned int cpuload;
293 unsigned int cpucycle;
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294
295 /*
296 * I/O Error handling
297 */
298 unsigned int continue_on_error;
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299
300 /*
301 * Benchmark profile type
302 */
79d16311 303 char *profile;
a696fa2a
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304
305 /*
306 * blkio cgroup support
307 */
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308 char *cgroup;
309 unsigned int cgroup_weight;
7de87099 310 unsigned int cgroup_nodelete;
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311
312 unsigned int uid;
313 unsigned int gid;
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314
315 unsigned int sync_file_range;
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316};
317
e4e33258
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318#define FIO_VERROR_SIZE 128
319
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320/*
321 * This describes a single thread/process executing a fio job.
322 */
323struct thread_data {
324 struct thread_options o;
e4e33258 325 char verror[FIO_VERROR_SIZE];
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326 pthread_t thread;
327 int thread_number;
328 int groupid;
329 struct thread_stat ts;
126d65c6 330 struct fio_file **files;
dd87b2c9 331 unsigned int files_size;
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332 unsigned int files_index;
333 unsigned int nr_open_files;
1020a139 334 unsigned int nr_done_files;
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335 unsigned int nr_normal_files;
336 union {
337 unsigned int next_file;
338 os_random_state_t next_file_state;
4c07ad86 339 struct frand_state __next_file_state;
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340 };
341 int error;
20e354ef 342 int done;
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343 pid_t pid;
344 char *orig_buffer;
345 size_t orig_buffer_size;
346 volatile int terminate;
347 volatile int runstate;
348 unsigned int ioprio;
ac684785 349 unsigned int ioprio_set;
2dc1bbeb 350 unsigned int last_was_sync;
9e144189 351 enum fio_ddir last_ddir;
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352
353 char *mmapfile;
354 int mmapfd;
355
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356 void *iolog_buf;
357 FILE *iolog_f;
ebac4655 358
da86774e 359 char *sysfs_root;
da86774e 360
0d29de83 361 unsigned long rand_seeds[7];
5bfc35d7 362
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363 union {
364 os_random_state_t bsrange_state;
365 struct frand_state __bsrange_state;
366 };
367 union {
368 os_random_state_t verify_state;
369 struct frand_state __verify_state;
370 };
371 union {
372 os_random_state_t trim_state;
373 struct frand_state __trim_state;
374 };
ebac4655 375
9e144189 376 unsigned int verify_batch;
0d29de83 377 unsigned int trim_batch;
9e144189 378
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379 int shm_id;
380
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381 /*
382 * IO engine hooks, contains everything needed to submit an io_u
383 * to any of the available IO engines.
384 */
2866c82d 385 struct ioengine_ops *io_ops;
ebac4655 386
e9c047a0
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387 /*
388 * Current IO depth and list of free and busy io_u's.
389 */
ebac4655 390 unsigned int cur_depth;
d8005759 391 unsigned int io_u_queued;
01743ee1
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392 struct flist_head io_u_freelist;
393 struct flist_head io_u_busylist;
394 struct flist_head io_u_requeues;
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395 pthread_mutex_t io_u_lock;
396 pthread_cond_t free_cond;
397
398 /*
399 * async verify offload
400 */
401 struct flist_head verify_list;
402 pthread_t *verify_threads;
403 unsigned int nr_verify_threads;
404 pthread_cond_t verify_cond;
405 int verify_thread_exit;
ebac4655 406
e9c047a0
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407 /*
408 * Rate state
409 */
ba3e4e0c 410 unsigned long rate_nsec_cycle[2];
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411 long rate_pending_usleep[2];
412 unsigned long rate_bytes[2];
413 unsigned long rate_blocks[2];
414 struct timeval lastrate[2];
ebac4655 415
ebac4655 416 unsigned long long total_io_size;
2e3bd4c2 417 unsigned long long fill_device_size;
ebac4655 418
755200a3 419 unsigned long io_issues[2];
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420 unsigned long long io_blocks[2];
421 unsigned long long io_bytes[2];
48f5abd3 422 unsigned long long io_skip_bytes;
9104f874 423 unsigned long long this_io_bytes[2];
079ad09b 424 unsigned long long zone_bytes;
cdd18ad8 425 struct fio_mutex *mutex;
ebac4655 426
e9c047a0
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427 /*
428 * State for random io, a bitmap of blocks done vs not done
429 */
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430 union {
431 os_random_state_t random_state;
432 struct frand_state __random_state;
433 };
ebac4655 434
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435 struct timeval start; /* start of this loop */
436 struct timeval epoch; /* time job was started */
a61eddec 437 struct timeval last_issue;
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438 struct timeval tv_cache;
439 unsigned int tv_cache_nr;
440 unsigned int tv_cache_mask;
721938ae 441 unsigned int ramp_time_over;
ebac4655 442
e9c047a0
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443 /*
444 * read/write mixed workload state
445 */
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446 union {
447 os_random_state_t rwmix_state;
448 struct frand_state __rwmix_state;
449 };
e4928662 450 unsigned long rwmix_issues;
e9c047a0 451 enum fio_ddir rwmix_ddir;
5736c10d 452 unsigned int ddir_seq_nr;
a6ccc7be 453
e9c047a0 454 /*
8de8f047
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455 * IO history logs for verification. We use a tree for sorting,
456 * if we are overwriting. Otherwise just use a fifo.
e9c047a0 457 */
4b87898e 458 struct rb_root io_hist_tree;
01743ee1 459 struct flist_head io_hist_list;
9e144189 460 unsigned long io_hist_len;
8de8f047
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461
462 /*
463 * For IO replaying
464 */
01743ee1 465 struct flist_head io_log_list;
433afcb4 466
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467 /*
468 * For tracking/handling discards
469 */
470 struct flist_head trim_list;
471 unsigned long trim_entries;
472
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473 /*
474 * for fileservice, how often to switch to a new file
475 */
476 unsigned int file_service_nr;
477 unsigned int file_service_left;
478 struct fio_file *file_service_file;
9c60ce64 479
44f29692
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480 unsigned int sync_file_range_nr;
481
9c60ce64
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482 /*
483 * For generating file sizes
484 */
4c07ad86
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485 union {
486 os_random_state_t file_size_state;
487 struct frand_state __file_size_state;
488 };
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489
490 /*
491 * Error counts
492 */
493 unsigned int total_err_count;
494 int first_error;
15dc1934
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495
496 /*
497 * Can be overloaded by profiles
498 */
7eb36574 499 struct prof_io_ops prof_io_ops;
58c55ba0 500 void *prof_data;
ebac4655
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501};
502
e592a06b
AC
503/*
504 * when should interactive ETA output be generated
505 */
506enum {
507 FIO_ETA_AUTO,
508 FIO_ETA_ALWAYS,
509 FIO_ETA_NEVER,
510};
511
e1161c32 512#define __td_verror(td, err, msg, func) \
ebac4655 513 do { \
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514 if ((td)->error) \
515 break; \
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516 int e = (err); \
517 (td)->error = e; \
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518 if (!(td)->first_error) \
519 snprintf(td->verror, sizeof(td->verror) - 1, "file:%s:%d, func=%s, error=%s", __FILE__, __LINE__, (func), (msg)); \
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520 } while (0)
521
b990b5c0 522
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523#define td_clear_error(td) \
524 (td)->error = 0;
e1161c32
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525#define td_verror(td, err, func) \
526 __td_verror((td), (err), strerror((err)), (func))
527#define td_vmsg(td, err, msg, func) \
528 __td_verror((td), (err), (msg), (func))
b990b5c0 529
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530extern int exitall_on_terminate;
531extern int thread_number;
9cedf167 532extern int nr_process, nr_thread;
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533extern int shm_id;
534extern int groupid;
c6ae0a5b 535extern int terse_output;
53cdc686 536extern int temp_stall_ts;
1e97cce9 537extern unsigned long long mlock_size;
cfc99db7 538extern unsigned long page_mask, page_size;
4241ea8f 539extern int read_only;
e592a06b 540extern int eta_print;
d3eeeabc 541extern unsigned long done_secs;
01f06b63 542extern char *job_section;
be4ecfdf
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543extern int fio_gtod_offload;
544extern int fio_gtod_cpu;
c223da83 545extern enum fio_cs fio_clock_source;
a9523c6f 546extern int warnings_fatal;
ebac4655
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547
548extern struct thread_data *threads;
549
7101d9c2
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550static inline void fio_ro_check(struct thread_data *td, struct io_u *io_u)
551{
552 assert(!(io_u->ddir == DDIR_WRITE && !td_write(td)));
553}
554
0ce8b119 555#define BLOCKS_PER_MAP (8 * sizeof(unsigned long))
aec2de20
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556#define TO_MAP_BLOCK(f, b) (b)
557#define RAND_MAP_IDX(f, b) (TO_MAP_BLOCK(f, b) / BLOCKS_PER_MAP)
558#define RAND_MAP_BIT(f, b) (TO_MAP_BLOCK(f, b) & (BLOCKS_PER_MAP - 1))
ebac4655 559
b841ac86 560#define MAX_JOBS (2048)
ebac4655 561
1ec99eea 562#define td_non_fatal_error(e) ((e) == EIO || (e) == EILSEQ)
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563
564static inline void update_error_count(struct thread_data *td, int err)
565{
566 td->total_err_count++;
567 if (td->total_err_count == 1)
568 td->first_error = err;
569}
570
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571static inline int should_fsync(struct thread_data *td)
572{
573 if (td->last_was_sync)
574 return 0;
2dc1bbeb 575 if (td->o.odirect)
87dc1ab1 576 return 0;
2dc1bbeb 577 if (td_write(td) || td_rw(td) || td->o.override_sync)
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JA
578 return 1;
579
580 return 0;
581}
582
8914a9d8 583/*
214e1eca 584 * Init/option functions
8914a9d8 585 */
72cb971b 586extern int __must_check parse_options(int, char **);
3b8b7135 587extern int fio_options_parse(struct thread_data *, char **, int);
74929ac2 588extern void fio_keywords_init(void);
214e1eca
JA
589extern int fio_cmd_option_parse(struct thread_data *, const char *, char *);
590extern void fio_fill_default_options(struct thread_data *);
591extern int fio_show_option_help(const char *);
592extern void fio_options_dup_and_init(struct option *);
d23bb327
JA
593extern void options_mem_dupe(struct thread_data *);
594extern void options_mem_free(struct thread_data *);
5bfc35d7 595extern void td_fill_rand_seeds(struct thread_data *);
79d16311 596extern void add_job_opts(const char **);
1ec3d69b
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597extern char *num2str(unsigned long, int, int, int);
598
214e1eca 599#define FIO_GETOPT_JOB 0x89988998
07b3232d 600#define FIO_NR_OPTIONS (FIO_MAX_OPTS + 128)
8914a9d8 601
263e529f
JA
602/*
603 * ETA/status stuff
604 */
605extern void print_thread_status(void);
606extern void print_status_init(int);
607
608/*
609 * Thread life cycle. Once a thread has a runstate beyond TD_INITIALIZED, it
610 * will never back again. It may cycle between running/verififying/fsyncing.
611 * Once the thread reaches TD_EXITED, it is just waiting for the core to
612 * reap it.
613 */
614enum {
615 TD_NOT_CREATED = 0,
616 TD_CREATED,
617 TD_INITIALIZED,
b29ee5b3 618 TD_RAMP,
263e529f 619 TD_RUNNING,
b0f65863 620 TD_PRE_READING,
263e529f
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621 TD_VERIFYING,
622 TD_FSYNCING,
623 TD_EXITED,
624 TD_REAPED,
625};
626
b29ee5b3
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627extern void td_set_runstate(struct thread_data *, int);
628
2f9ade3c
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629/*
630 * Memory helpers
631 */
b2fdda43 632extern int __must_check fio_pin_memory(void);
2f9ade3c 633extern void fio_unpin_memory(void);
b2fdda43 634extern int __must_check allocate_io_mem(struct thread_data *);
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635extern void free_io_mem(struct thread_data *);
636
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637/*
638 * Reset stats after ramp time completes
639 */
640extern void reset_all_stats(struct thread_data *);
641
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642/*
643 * blktrace support
644 */
5e62c22a 645#ifdef FIO_HAVE_BLKTRACE
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646extern int is_blktrace(const char *);
647extern int load_blktrace(struct thread_data *, const char *);
5e62c22a 648#endif
fb7b71a3 649
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650/*
651 * Mark unused variables passed to ops functions as unused, to silence gcc
652 */
653#define fio_unused __attribute((__unused__))
5f350952
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654#define fio_init __attribute__((constructor))
655#define fio_exit __attribute__((destructor))
2866c82d 656
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657#define for_each_td(td, i) \
658 for ((i) = 0, (td) = &threads[0]; (i) < (int) thread_number; (i)++, (td)++)
53cdc686 659#define for_each_file(td, f, i) \
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660 if ((td)->files_index) \
661 for ((i) = 0, (f) = (td)->files[0]; \
662 (i) < (td)->o.nr_files && ((f) = (td)->files[i]) != NULL; \
663 (i)++)
53cdc686 664
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665#define fio_assert(td, cond) do { \
666 if (!(cond)) { \
340fd243 667 int *__foo = NULL; \
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668 fprintf(stderr, "file:%s:%d, assert %s failed\n", __FILE__, __LINE__, #cond); \
669 (td)->runstate = TD_EXITED; \
437c9b71 670 (td)->error = EFAULT; \
340fd243 671 *__foo = 0; \
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672 } \
673} while (0)
674
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675static inline int fio_fill_issue_time(struct thread_data *td)
676{
677 if (td->o.read_iolog_file ||
678 !td->o.disable_clat || !td->o.disable_slat || !td->o.disable_bw)
679 return 1;
680
681 return 0;
682}
683
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684static inline int __should_check_rate(struct thread_data *td,
685 enum fio_ddir ddir)
686{
687 struct thread_options *o = &td->o;
688
689 /*
690 * If some rate setting was given, we need to check it
691 */
692 if (o->rate[ddir] || o->ratemin[ddir] || o->rate_iops[ddir] ||
693 o->rate_iops_min[ddir])
694 return 1;
695
696 return 0;
697}
698
699static inline int should_check_rate(struct thread_data *td,
700 unsigned long *bytes_done)
701{
702 int ret = 0;
703
704 if (bytes_done[0])
705 ret |= __should_check_rate(td, 0);
706 if (bytes_done[1])
707 ret |= __should_check_rate(td, 1);
708
709 return ret;
710}
711
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712static inline int is_power_of_2(unsigned int val)
713{
714 return (val != 0 && ((val & (val - 1)) == 0));
715}
716
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717/*
718 * We currently only need to do locking if we have verifier threads
719 * accessing our internal structures too
720 */
721static inline void td_io_u_lock(struct thread_data *td)
722{
723 if (td->o.verify_async)
724 pthread_mutex_lock(&td->io_u_lock);
725}
726
727static inline void td_io_u_unlock(struct thread_data *td)
728{
729 if (td->o.verify_async)
730 pthread_mutex_unlock(&td->io_u_lock);
731}
732
733static inline void td_io_u_free_notify(struct thread_data *td)
734{
735 if (td->o.verify_async)
736 pthread_cond_signal(&td->free_cond);
737}
738
ebac4655 739#endif