instrumentation/events/mainline/rcu.h

   1 #undef TRACE_SYSTEM
   2 #define TRACE_SYSTEM rcu
   3
   4 #if !defined(_TRACE_RCU_H) || defined(TRACE_HEADER_MULTI_READ)
   5 #define _TRACE_RCU_H
   6
   7 #include <linux/tracepoint.h>
   8
   9 /*
  10  * Tracepoint for start/end markers used for utilization calculations.
  11  * By convention, the string is of the following forms:
  12  *
  13  * "Start <activity>" -- Mark the start of the specified activity,
  14  *                       such as "context switch".  Nesting is permitted.
  15  * "End <activity>" -- Mark the end of the specified activity.
  16  *
  17  * An "@" character within "<activity>" is a comment character: Data
  18  * reduction scripts will ignore the "@" and the remainder of the line.
  19  */
  20 TRACE_EVENT(rcu_utilization,
  21
  22         TP_PROTO(char *s),
  23
  24         TP_ARGS(s),
  25
  26         TP_STRUCT__entry(
  27                 __field(char *, s)
  28         ),
  29
  30         TP_fast_assign(
  31                 __entry->s = s;
  32         ),
  33
  34         TP_printk("%s", __entry->s)
  35 );
  36
  37 #ifdef CONFIG_RCU_TRACE
  38
  39 #if defined(CONFIG_TREE_RCU) || defined(CONFIG_TREE_PREEMPT_RCU)
  40
  41 /*
  42  * Tracepoint for grace-period events: starting and ending a grace
  43  * period ("start" and "end", respectively), a CPU noting the start
  44  * of a new grace period or the end of an old grace period ("cpustart"
  45  * and "cpuend", respectively), a CPU passing through a quiescent
  46  * state ("cpuqs"), a CPU coming online or going offline ("cpuonl"
  47  * and "cpuofl", respectively), and a CPU being kicked for being too
  48  * long in dyntick-idle mode ("kick").
  49  */
  50 TRACE_EVENT(rcu_grace_period,
  51
  52         TP_PROTO(char *rcuname, unsigned long gpnum, char *gpevent),
  53
  54         TP_ARGS(rcuname, gpnum, gpevent),
  55
  56         TP_STRUCT__entry(
  57                 __field(char *, rcuname)
  58                 __field(unsigned long, gpnum)
  59                 __field(char *, gpevent)
  60         ),
  61
  62         TP_fast_assign(
  63                 __entry->rcuname = rcuname;
  64                 __entry->gpnum = gpnum;
  65                 __entry->gpevent = gpevent;
  66         ),
  67
  68         TP_printk("%s %lu %s",
  69                   __entry->rcuname, __entry->gpnum, __entry->gpevent)
  70 );
  71
  72 /*
  73  * Tracepoint for grace-period-initialization events.  These are
  74  * distinguished by the type of RCU, the new grace-period number, the
  75  * rcu_node structure level, the starting and ending CPU covered by the
  76  * rcu_node structure, and the mask of CPUs that will be waited for.
  77  * All but the type of RCU are extracted from the rcu_node structure.
  78  */
  79 TRACE_EVENT(rcu_grace_period_init,
  80
  81         TP_PROTO(char *rcuname, unsigned long gpnum, u8 level,
  82                  int grplo, int grphi, unsigned long qsmask),
  83
  84         TP_ARGS(rcuname, gpnum, level, grplo, grphi, qsmask),
  85
  86         TP_STRUCT__entry(
  87                 __field(char *, rcuname)
  88                 __field(unsigned long, gpnum)
  89                 __field(u8, level)
  90                 __field(int, grplo)
  91                 __field(int, grphi)
  92                 __field(unsigned long, qsmask)
  93         ),
  94
  95         TP_fast_assign(
  96                 __entry->rcuname = rcuname;
  97                 __entry->gpnum = gpnum;
  98                 __entry->level = level;
  99                 __entry->grplo = grplo;
 100                 __entry->grphi = grphi;
 101                 __entry->qsmask = qsmask;
 102         ),
 103
 104         TP_printk("%s %lu %u %d %d %lx",
 105                   __entry->rcuname, __entry->gpnum, __entry->level,
 106                   __entry->grplo, __entry->grphi, __entry->qsmask)
 107 );
 108
 109 /*
 110  * Tracepoint for tasks blocking within preemptible-RCU read-side
 111  * critical sections.  Track the type of RCU (which one day might
 112  * include SRCU), the grace-period number that the task is blocking
 113  * (the current or the next), and the task's PID.
 114  */
 115 TRACE_EVENT(rcu_preempt_task,
 116
 117         TP_PROTO(char *rcuname, int pid, unsigned long gpnum),
 118
 119         TP_ARGS(rcuname, pid, gpnum),
 120
 121         TP_STRUCT__entry(
 122                 __field(char *, rcuname)
 123                 __field(unsigned long, gpnum)
 124                 __field(int, pid)
 125         ),
 126
 127         TP_fast_assign(
 128                 __entry->rcuname = rcuname;
 129                 __entry->gpnum = gpnum;
 130                 __entry->pid = pid;
 131         ),
 132
 133         TP_printk("%s %lu %d",
 134                   __entry->rcuname, __entry->gpnum, __entry->pid)
 135 );
 136
 137 /*
 138  * Tracepoint for tasks that blocked within a given preemptible-RCU
 139  * read-side critical section exiting that critical section.  Track the
 140  * type of RCU (which one day might include SRCU) and the task's PID.
 141  */
 142 TRACE_EVENT(rcu_unlock_preempted_task,
 143
 144         TP_PROTO(char *rcuname, unsigned long gpnum, int pid),
 145
 146         TP_ARGS(rcuname, gpnum, pid),
 147
 148         TP_STRUCT__entry(
 149                 __field(char *, rcuname)
 150                 __field(unsigned long, gpnum)
 151                 __field(int, pid)
 152         ),
 153
 154         TP_fast_assign(
 155                 __entry->rcuname = rcuname;
 156                 __entry->gpnum = gpnum;
 157                 __entry->pid = pid;
 158         ),
 159
 160         TP_printk("%s %lu %d", __entry->rcuname, __entry->gpnum, __entry->pid)
 161 );
 162
 163 /*
 164  * Tracepoint for quiescent-state-reporting events.  These are
 165  * distinguished by the type of RCU, the grace-period number, the
 166  * mask of quiescent lower-level entities, the rcu_node structure level,
 167  * the starting and ending CPU covered by the rcu_node structure, and
 168  * whether there are any blocked tasks blocking the current grace period.
 169  * All but the type of RCU are extracted from the rcu_node structure.
 170  */
 171 TRACE_EVENT(rcu_quiescent_state_report,
 172
 173         TP_PROTO(char *rcuname, unsigned long gpnum,
 174                  unsigned long mask, unsigned long qsmask,
 175                  u8 level, int grplo, int grphi, int gp_tasks),
 176
 177         TP_ARGS(rcuname, gpnum, mask, qsmask, level, grplo, grphi, gp_tasks),
 178
 179         TP_STRUCT__entry(
 180                 __field(char *, rcuname)
 181                 __field(unsigned long, gpnum)
 182                 __field(unsigned long, mask)
 183                 __field(unsigned long, qsmask)
 184                 __field(u8, level)
 185                 __field(int, grplo)
 186                 __field(int, grphi)
 187                 __field(u8, gp_tasks)
 188         ),
 189
 190         TP_fast_assign(
 191                 __entry->rcuname = rcuname;
 192                 __entry->gpnum = gpnum;
 193                 __entry->mask = mask;
 194                 __entry->qsmask = qsmask;
 195                 __entry->level = level;
 196                 __entry->grplo = grplo;
 197                 __entry->grphi = grphi;
 198                 __entry->gp_tasks = gp_tasks;
 199         ),
 200
 201         TP_printk("%s %lu %lx>%lx %u %d %d %u",
 202                   __entry->rcuname, __entry->gpnum,
 203                   __entry->mask, __entry->qsmask, __entry->level,
 204                   __entry->grplo, __entry->grphi, __entry->gp_tasks)
 205 );
 206
 207 /*
 208  * Tracepoint for quiescent states detected by force_quiescent_state().
 209  * These trace events include the type of RCU, the grace-period number
 210  * that was blocked by the CPU, the CPU itself, and the type of quiescent
 211  * state, which can be "dti" for dyntick-idle mode, "ofl" for CPU offline,
 212  * or "kick" when kicking a CPU that has been in dyntick-idle mode for
 213  * too long.
 214  */
 215 TRACE_EVENT(rcu_fqs,
 216
 217         TP_PROTO(char *rcuname, unsigned long gpnum, int cpu, char *qsevent),
 218
 219         TP_ARGS(rcuname, gpnum, cpu, qsevent),
 220
 221         TP_STRUCT__entry(
 222                 __field(char *, rcuname)
 223                 __field(unsigned long, gpnum)
 224                 __field(int, cpu)
 225                 __field(char *, qsevent)
 226         ),
 227
 228         TP_fast_assign(
 229                 __entry->rcuname = rcuname;
 230                 __entry->gpnum = gpnum;
 231                 __entry->cpu = cpu;
 232                 __entry->qsevent = qsevent;
 233         ),
 234
 235         TP_printk("%s %lu %d %s",
 236                   __entry->rcuname, __entry->gpnum,
 237                   __entry->cpu, __entry->qsevent)
 238 );
 239
 240 #endif /* #if defined(CONFIG_TREE_RCU) || defined(CONFIG_TREE_PREEMPT_RCU) */
 241
 242 /*
 243  * Tracepoint for dyntick-idle entry/exit events.  These take a string
 244  * as argument: "Start" for entering dyntick-idle mode, "End" for
 245  * leaving it, "--=" for events moving towards idle, and "++=" for events
 246  * moving away from idle.  "Error on entry: not idle task" and "Error on
 247  * exit: not idle task" indicate that a non-idle task is erroneously
 248  * toying with the idle loop.
 249  *
 250  * These events also take a pair of numbers, which indicate the nesting
 251  * depth before and after the event of interest.  Note that task-related
 252  * events use the upper bits of each number, while interrupt-related
 253  * events use the lower bits.
 254  */
 255 TRACE_EVENT(rcu_dyntick,
 256
 257         TP_PROTO(char *polarity, long long oldnesting, long long newnesting),
 258
 259         TP_ARGS(polarity, oldnesting, newnesting),
 260
 261         TP_STRUCT__entry(
 262                 __field(char *, polarity)
 263                 __field(long long, oldnesting)
 264                 __field(long long, newnesting)
 265         ),
 266
 267         TP_fast_assign(
 268                 __entry->polarity = polarity;
 269                 __entry->oldnesting = oldnesting;
 270                 __entry->newnesting = newnesting;
 271         ),
 272
 273         TP_printk("%s %llx %llx", __entry->polarity,
 274                   __entry->oldnesting, __entry->newnesting)
 275 );
 276
 277 /*
 278  * Tracepoint for RCU preparation for idle, the goal being to get RCU
 279  * processing done so that the current CPU can shut off its scheduling
 280  * clock and enter dyntick-idle mode.  One way to accomplish this is
 281  * to drain all RCU callbacks from this CPU, and the other is to have
 282  * done everything RCU requires for the current grace period.  In this
 283  * latter case, the CPU will be awakened at the end of the current grace
 284  * period in order to process the remainder of its callbacks.
 285  *
 286  * These tracepoints take a string as argument:
 287  *
 288  *      "No callbacks": Nothing to do, no callbacks on this CPU.
 289  *      "In holdoff": Nothing to do, holding off after unsuccessful attempt.
 290  *      "Begin holdoff": Attempt failed, don't retry until next jiffy.
 291  *      "Dyntick with callbacks": Entering dyntick-idle despite callbacks.
 292  *      "Dyntick with lazy callbacks": Entering dyntick-idle w/lazy callbacks.
 293  *      "More callbacks": Still more callbacks, try again to clear them out.
 294  *      "Callbacks drained": All callbacks processed, off to dyntick idle!
 295  *      "Timer": Timer fired to cause CPU to continue processing callbacks.
 296  *      "Demigrate": Timer fired on wrong CPU, woke up correct CPU.
 297  *      "Cleanup after idle": Idle exited, timer canceled.
 298  */
 299 TRACE_EVENT(rcu_prep_idle,
 300
 301         TP_PROTO(char *reason),
 302
 303         TP_ARGS(reason),
 304
 305         TP_STRUCT__entry(
 306                 __field(char *, reason)
 307         ),
 308
 309         TP_fast_assign(
 310                 __entry->reason = reason;
 311         ),
 312
 313         TP_printk("%s", __entry->reason)
 314 );
 315
 316 /*
 317  * Tracepoint for the registration of a single RCU callback function.
 318  * The first argument is the type of RCU, the second argument is
 319  * a pointer to the RCU callback itself, the third element is the
 320  * number of lazy callbacks queued, and the fourth element is the
 321  * total number of callbacks queued.
 322  */
 323 TRACE_EVENT(rcu_callback,
 324
 325         TP_PROTO(char *rcuname, struct rcu_head *rhp, long qlen_lazy,
 326                  long qlen),
 327
 328         TP_ARGS(rcuname, rhp, qlen_lazy, qlen),
 329
 330         TP_STRUCT__entry(
 331                 __field(char *, rcuname)
 332                 __field(void *, rhp)
 333                 __field(void *, func)
 334                 __field(long, qlen_lazy)
 335                 __field(long, qlen)
 336         ),
 337
 338         TP_fast_assign(
 339                 __entry->rcuname = rcuname;
 340                 __entry->rhp = rhp;
 341                 __entry->func = rhp->func;
 342                 __entry->qlen_lazy = qlen_lazy;
 343                 __entry->qlen = qlen;
 344         ),
 345
 346         TP_printk("%s rhp=%p func=%pf %ld/%ld",
 347                   __entry->rcuname, __entry->rhp, __entry->func,
 348                   __entry->qlen_lazy, __entry->qlen)
 349 );
 350
 351 /*
 352  * Tracepoint for the registration of a single RCU callback of the special
 353  * kfree() form.  The first argument is the RCU type, the second argument
 354  * is a pointer to the RCU callback, the third argument is the offset
 355  * of the callback within the enclosing RCU-protected data structure,
 356  * the fourth argument is the number of lazy callbacks queued, and the
 357  * fifth argument is the total number of callbacks queued.
 358  */
 359 TRACE_EVENT(rcu_kfree_callback,
 360
 361         TP_PROTO(char *rcuname, struct rcu_head *rhp, unsigned long offset,
 362                  long qlen_lazy, long qlen),
 363
 364         TP_ARGS(rcuname, rhp, offset, qlen_lazy, qlen),
 365
 366         TP_STRUCT__entry(
 367                 __field(char *, rcuname)
 368                 __field(void *, rhp)
 369                 __field(unsigned long, offset)
 370                 __field(long, qlen_lazy)
 371                 __field(long, qlen)
 372         ),
 373
 374         TP_fast_assign(
 375                 __entry->rcuname = rcuname;
 376                 __entry->rhp = rhp;
 377                 __entry->offset = offset;
 378                 __entry->qlen_lazy = qlen_lazy;
 379                 __entry->qlen = qlen;
 380         ),
 381
 382         TP_printk("%s rhp=%p func=%ld %ld/%ld",
 383                   __entry->rcuname, __entry->rhp, __entry->offset,
 384                   __entry->qlen_lazy, __entry->qlen)
 385 );
 386
 387 /*
 388  * Tracepoint for marking the beginning rcu_do_batch, performed to start
 389  * RCU callback invocation.  The first argument is the RCU flavor,
 390  * the second is the number of lazy callbacks queued, the third is
 391  * the total number of callbacks queued, and the fourth argument is
 392  * the current RCU-callback batch limit.
 393  */
 394 TRACE_EVENT(rcu_batch_start,
 395
 396         TP_PROTO(char *rcuname, long qlen_lazy, long qlen, int blimit),
 397
 398         TP_ARGS(rcuname, qlen_lazy, qlen, blimit),
 399
 400         TP_STRUCT__entry(
 401                 __field(char *, rcuname)
 402                 __field(long, qlen_lazy)
 403                 __field(long, qlen)
 404                 __field(int, blimit)
 405         ),
 406
 407         TP_fast_assign(
 408                 __entry->rcuname = rcuname;
 409                 __entry->qlen_lazy = qlen_lazy;
 410                 __entry->qlen = qlen;
 411                 __entry->blimit = blimit;
 412         ),
 413
 414         TP_printk("%s CBs=%ld/%ld bl=%d",
 415                   __entry->rcuname, __entry->qlen_lazy, __entry->qlen,
 416                   __entry->blimit)
 417 );
 418
 419 /*
 420  * Tracepoint for the invocation of a single RCU callback function.
 421  * The first argument is the type of RCU, and the second argument is
 422  * a pointer to the RCU callback itself.
 423  */
 424 TRACE_EVENT(rcu_invoke_callback,
 425
 426         TP_PROTO(char *rcuname, struct rcu_head *rhp),
 427
 428         TP_ARGS(rcuname, rhp),
 429
 430         TP_STRUCT__entry(
 431                 __field(char *, rcuname)
 432                 __field(void *, rhp)
 433                 __field(void *, func)
 434         ),
 435
 436         TP_fast_assign(
 437                 __entry->rcuname = rcuname;
 438                 __entry->rhp = rhp;
 439                 __entry->func = rhp->func;
 440         ),
 441
 442         TP_printk("%s rhp=%p func=%pf",
 443                   __entry->rcuname, __entry->rhp, __entry->func)
 444 );
 445
 446 /*
 447  * Tracepoint for the invocation of a single RCU callback of the special
 448  * kfree() form.  The first argument is the RCU flavor, the second
 449  * argument is a pointer to the RCU callback, and the third argument
 450  * is the offset of the callback within the enclosing RCU-protected
 451  * data structure.
 452  */
 453 TRACE_EVENT(rcu_invoke_kfree_callback,
 454
 455         TP_PROTO(char *rcuname, struct rcu_head *rhp, unsigned long offset),
 456
 457         TP_ARGS(rcuname, rhp, offset),
 458
 459         TP_STRUCT__entry(
 460                 __field(char *, rcuname)
 461                 __field(void *, rhp)
 462                 __field(unsigned long, offset)
 463         ),
 464
 465         TP_fast_assign(
 466                 __entry->rcuname = rcuname;
 467                 __entry->rhp = rhp;
 468                 __entry->offset = offset;
 469         ),
 470
 471         TP_printk("%s rhp=%p func=%ld",
 472                   __entry->rcuname, __entry->rhp, __entry->offset)
 473 );
 474
 475 /*
 476  * Tracepoint for exiting rcu_do_batch after RCU callbacks have been
 477  * invoked.  The first argument is the name of the RCU flavor,
 478  * the second argument is number of callbacks actually invoked,
 479  * the third argument (cb) is whether or not any of the callbacks that
 480  * were ready to invoke at the beginning of this batch are still
 481  * queued, the fourth argument (nr) is the return value of need_resched(),
 482  * the fifth argument (iit) is 1 if the current task is the idle task,
 483  * and the sixth argument (risk) is the return value from
 484  * rcu_is_callbacks_kthread().
 485  */
 486 TRACE_EVENT(rcu_batch_end,
 487
 488         TP_PROTO(char *rcuname, int callbacks_invoked,
 489                  bool cb, bool nr, bool iit, bool risk),
 490
 491         TP_ARGS(rcuname, callbacks_invoked, cb, nr, iit, risk),
 492
 493         TP_STRUCT__entry(
 494                 __field(char *, rcuname)
 495                 __field(int, callbacks_invoked)
 496                 __field(bool, cb)
 497                 __field(bool, nr)
 498                 __field(bool, iit)
 499                 __field(bool, risk)
 500         ),
 501
 502         TP_fast_assign(
 503                 __entry->rcuname = rcuname;
 504                 __entry->callbacks_invoked = callbacks_invoked;
 505                 __entry->cb = cb;
 506                 __entry->nr = nr;
 507                 __entry->iit = iit;
 508                 __entry->risk = risk;
 509         ),
 510
 511         TP_printk("%s CBs-invoked=%d idle=%c%c%c%c",
 512                   __entry->rcuname, __entry->callbacks_invoked,
 513                   __entry->cb ? 'C' : '.',
 514                   __entry->nr ? 'S' : '.',
 515                   __entry->iit ? 'I' : '.',
 516                   __entry->risk ? 'R' : '.')
 517 );
 518
 519 /*
 520  * Tracepoint for rcutorture readers.  The first argument is the name
 521  * of the RCU flavor from rcutorture's viewpoint and the second argument
 522  * is the callback address.
 523  */
 524 TRACE_EVENT(rcu_torture_read,
 525
 526         TP_PROTO(char *rcutorturename, struct rcu_head *rhp),
 527
 528         TP_ARGS(rcutorturename, rhp),
 529
 530         TP_STRUCT__entry(
 531                 __field(char *, rcutorturename)
 532                 __field(struct rcu_head *, rhp)
 533         ),
 534
 535         TP_fast_assign(
 536                 __entry->rcutorturename = rcutorturename;
 537                 __entry->rhp = rhp;
 538         ),
 539
 540         TP_printk("%s torture read %p",
 541                   __entry->rcutorturename, __entry->rhp)
 542 );
 543
 544 /*
 545  * Tracepoint for _rcu_barrier() execution.  The string "s" describes
 546  * the _rcu_barrier phase:
 547  *      "Begin": rcu_barrier_callback() started.
 548  *      "Check": rcu_barrier_callback() checking for piggybacking.
 549  *      "EarlyExit": rcu_barrier_callback() piggybacked, thus early exit.
 550  *      "Inc1": rcu_barrier_callback() piggyback check counter incremented.
 551  *      "Offline": rcu_barrier_callback() found offline CPU
 552  *      "OnlineQ": rcu_barrier_callback() found online CPU with callbacks.
 553  *      "OnlineNQ": rcu_barrier_callback() found online CPU, no callbacks.
 554  *      "IRQ": An rcu_barrier_callback() callback posted on remote CPU.
 555  *      "CB": An rcu_barrier_callback() invoked a callback, not the last.
 556  *      "LastCB": An rcu_barrier_callback() invoked the last callback.
 557  *      "Inc2": rcu_barrier_callback() piggyback check counter incremented.
 558  * The "cpu" argument is the CPU or -1 if meaningless, the "cnt" argument
 559  * is the count of remaining callbacks, and "done" is the piggybacking count.
 560  */
 561 TRACE_EVENT(rcu_barrier,
 562
 563         TP_PROTO(char *rcuname, char *s, int cpu, int cnt, unsigned long done),
 564
 565         TP_ARGS(rcuname, s, cpu, cnt, done),
 566
 567         TP_STRUCT__entry(
 568                 __field(char *, rcuname)
 569                 __field(char *, s)
 570                 __field(int, cpu)
 571                 __field(int, cnt)
 572                 __field(unsigned long, done)
 573         ),
 574
 575         TP_fast_assign(
 576                 __entry->rcuname = rcuname;
 577                 __entry->s = s;
 578                 __entry->cpu = cpu;
 579                 __entry->cnt = cnt;
 580                 __entry->done = done;
 581         ),
 582
 583         TP_printk("%s %s cpu %d remaining %d # %lu",
 584                   __entry->rcuname, __entry->s, __entry->cpu, __entry->cnt,
 585                   __entry->done)
 586 );
 587
 588 #else /* #ifdef CONFIG_RCU_TRACE */
 589
 590 #define trace_rcu_grace_period(rcuname, gpnum, gpevent) do { } while (0)
 591 #define trace_rcu_grace_period_init(rcuname, gpnum, level, grplo, grphi, \
 592                                     qsmask) do { } while (0)
 593 #define trace_rcu_preempt_task(rcuname, pid, gpnum) do { } while (0)
 594 #define trace_rcu_unlock_preempted_task(rcuname, gpnum, pid) do { } while (0)
 595 #define trace_rcu_quiescent_state_report(rcuname, gpnum, mask, qsmask, level, \
 596                                          grplo, grphi, gp_tasks) do { } \
 597         while (0)
 598 #define trace_rcu_fqs(rcuname, gpnum, cpu, qsevent) do { } while (0)
 599 #define trace_rcu_dyntick(polarity, oldnesting, newnesting) do { } while (0)
 600 #define trace_rcu_prep_idle(reason) do { } while (0)
 601 #define trace_rcu_callback(rcuname, rhp, qlen_lazy, qlen) do { } while (0)
 602 #define trace_rcu_kfree_callback(rcuname, rhp, offset, qlen_lazy, qlen) \
 603         do { } while (0)
 604 #define trace_rcu_batch_start(rcuname, qlen_lazy, qlen, blimit) \
 605         do { } while (0)
 606 #define trace_rcu_invoke_callback(rcuname, rhp) do { } while (0)
 607 #define trace_rcu_invoke_kfree_callback(rcuname, rhp, offset) do { } while (0)
 608 #define trace_rcu_batch_end(rcuname, callbacks_invoked, cb, nr, iit, risk) \
 609         do { } while (0)
 610 #define trace_rcu_torture_read(rcutorturename, rhp) do { } while (0)
 611 #define trace_rcu_barrier(name, s, cpu, cnt, done) do { } while (0)
 612
 613 #endif /* #else #ifdef CONFIG_RCU_TRACE */
 614
 615 #endif /* _TRACE_RCU_H */
 616
 617 /* This part must be outside protection */
 618 #include <trace/define_trace.h>