1 /* SPDX-License-Identifier: GPL-2.0 */
3 #define TRACE_SYSTEM rcu
5 #if !defined(_TRACE_RCU_H) || defined(TRACE_HEADER_MULTI_READ)
8 #include <linux/tracepoint.h>
11 * Tracepoint for start/end markers used for utilization calculations.
12 * By convention, the string is of the following forms:
14 * "Start <activity>" -- Mark the start of the specified activity,
15 * such as "context switch". Nesting is permitted.
16 * "End <activity>" -- Mark the end of the specified activity.
18 * An "@" character within "<activity>" is a comment character: Data
19 * reduction scripts will ignore the "@" and the remainder of the line.
21 TRACE_EVENT(rcu_utilization,
23 TP_PROTO(const char *s),
28 __field(const char *, s)
35 TP_printk("%s", __entry->s)
38 #ifdef CONFIG_RCU_TRACE
40 #if defined(CONFIG_TREE_RCU) || defined(CONFIG_PREEMPT_RCU)
43 * Tracepoint for grace-period events. Takes a string identifying the
44 * RCU flavor, the grace-period number, and a string identifying the
45 * grace-period-related event as follows:
47 * "AccReadyCB": CPU acclerates new callbacks to RCU_NEXT_READY_TAIL.
48 * "AccWaitCB": CPU accelerates new callbacks to RCU_WAIT_TAIL.
49 * "newreq": Request a new grace period.
50 * "start": Start a grace period.
51 * "cpustart": CPU first notices a grace-period start.
52 * "cpuqs": CPU passes through a quiescent state.
53 * "cpuonl": CPU comes online.
54 * "cpuofl": CPU goes offline.
55 * "cpuofl-bgp": CPU goes offline while blocking a grace period.
56 * "reqwait": GP kthread sleeps waiting for grace-period request.
57 * "reqwaitsig": GP kthread awakened by signal from reqwait state.
58 * "fqswait": GP kthread waiting until time to force quiescent states.
59 * "fqsstart": GP kthread starts forcing quiescent states.
60 * "fqsend": GP kthread done forcing quiescent states.
61 * "fqswaitsig": GP kthread awakened by signal from fqswait state.
62 * "end": End a grace period.
63 * "cpuend": CPU first notices a grace-period end.
65 TRACE_EVENT(rcu_grace_period,
67 TP_PROTO(const char *rcuname, unsigned long gp_seq, const char *gpevent),
69 TP_ARGS(rcuname, gp_seq, gpevent),
72 __field(const char *, rcuname)
73 __field(unsigned long, gp_seq)
74 __field(const char *, gpevent)
78 __entry->rcuname = rcuname;
79 __entry->gp_seq = gp_seq;
80 __entry->gpevent = gpevent;
83 TP_printk("%s %lu %s",
84 __entry->rcuname, __entry->gp_seq, __entry->gpevent)
88 * Tracepoint for future grace-period events. The caller should pull
89 * the data from the rcu_node structure, other than rcuname, which comes
90 * from the rcu_state structure, and event, which is one of the following:
92 * "Startleaf": Request a grace period based on leaf-node data.
93 * "Prestarted": Someone beat us to the request
94 * "Startedleaf": Leaf node marked for future GP.
95 * "Startedleafroot": All nodes from leaf to root marked for future GP.
96 * "Startedroot": Requested a nocb grace period based on root-node data.
97 * "NoGPkthread": The RCU grace-period kthread has not yet started.
98 * "StartWait": Start waiting for the requested grace period.
99 * "ResumeWait": Resume waiting after signal.
100 * "EndWait": Complete wait.
101 * "Cleanup": Clean up rcu_node structure after previous GP.
102 * "CleanupMore": Clean up, and another GP is needed.
104 TRACE_EVENT(rcu_future_grace_period,
106 TP_PROTO(const char *rcuname, unsigned long gp_seq,
107 unsigned long gp_seq_req, u8 level, int grplo, int grphi,
108 const char *gpevent),
110 TP_ARGS(rcuname, gp_seq, gp_seq_req, level, grplo, grphi, gpevent),
113 __field(const char *, rcuname)
114 __field(unsigned long, gp_seq)
115 __field(unsigned long, gp_seq_req)
119 __field(const char *, gpevent)
123 __entry->rcuname = rcuname;
124 __entry->gp_seq = gp_seq;
125 __entry->gp_seq_req = gp_seq_req;
126 __entry->level = level;
127 __entry->grplo = grplo;
128 __entry->grphi = grphi;
129 __entry->gpevent = gpevent;
132 TP_printk("%s %lu %lu %u %d %d %s",
133 __entry->rcuname, __entry->gp_seq, __entry->gp_seq_req, __entry->level,
134 __entry->grplo, __entry->grphi, __entry->gpevent)
138 * Tracepoint for grace-period-initialization events. These are
139 * distinguished by the type of RCU, the new grace-period number, the
140 * rcu_node structure level, the starting and ending CPU covered by the
141 * rcu_node structure, and the mask of CPUs that will be waited for.
142 * All but the type of RCU are extracted from the rcu_node structure.
144 TRACE_EVENT(rcu_grace_period_init,
146 TP_PROTO(const char *rcuname, unsigned long gp_seq, u8 level,
147 int grplo, int grphi, unsigned long qsmask),
149 TP_ARGS(rcuname, gp_seq, level, grplo, grphi, qsmask),
152 __field(const char *, rcuname)
153 __field(unsigned long, gp_seq)
157 __field(unsigned long, qsmask)
161 __entry->rcuname = rcuname;
162 __entry->gp_seq = gp_seq;
163 __entry->level = level;
164 __entry->grplo = grplo;
165 __entry->grphi = grphi;
166 __entry->qsmask = qsmask;
169 TP_printk("%s %lu %u %d %d %lx",
170 __entry->rcuname, __entry->gp_seq, __entry->level,
171 __entry->grplo, __entry->grphi, __entry->qsmask)
175 * Tracepoint for expedited grace-period events. Takes a string identifying
176 * the RCU flavor, the expedited grace-period sequence number, and a string
177 * identifying the grace-period-related event as follows:
179 * "snap": Captured snapshot of expedited grace period sequence number.
180 * "start": Started a real expedited grace period.
181 * "reset": Started resetting the tree
182 * "select": Started selecting the CPUs to wait on.
183 * "selectofl": Selected CPU partially offline.
184 * "startwait": Started waiting on selected CPUs.
185 * "end": Ended a real expedited grace period.
186 * "endwake": Woke piggybackers up.
187 * "done": Someone else did the expedited grace period for us.
189 TRACE_EVENT(rcu_exp_grace_period,
191 TP_PROTO(const char *rcuname, unsigned long gpseq, const char *gpevent),
193 TP_ARGS(rcuname, gpseq, gpevent),
196 __field(const char *, rcuname)
197 __field(unsigned long, gpseq)
198 __field(const char *, gpevent)
202 __entry->rcuname = rcuname;
203 __entry->gpseq = gpseq;
204 __entry->gpevent = gpevent;
207 TP_printk("%s %lu %s",
208 __entry->rcuname, __entry->gpseq, __entry->gpevent)
212 * Tracepoint for expedited grace-period funnel-locking events. Takes a
213 * string identifying the RCU flavor, an integer identifying the rcu_node
214 * combining-tree level, another pair of integers identifying the lowest-
215 * and highest-numbered CPU associated with the current rcu_node structure,
216 * and a string. identifying the grace-period-related event as follows:
218 * "nxtlvl": Advance to next level of rcu_node funnel
219 * "wait": Wait for someone else to do expedited GP
221 TRACE_EVENT(rcu_exp_funnel_lock,
223 TP_PROTO(const char *rcuname, u8 level, int grplo, int grphi,
224 const char *gpevent),
226 TP_ARGS(rcuname, level, grplo, grphi, gpevent),
229 __field(const char *, rcuname)
233 __field(const char *, gpevent)
237 __entry->rcuname = rcuname;
238 __entry->level = level;
239 __entry->grplo = grplo;
240 __entry->grphi = grphi;
241 __entry->gpevent = gpevent;
244 TP_printk("%s %d %d %d %s",
245 __entry->rcuname, __entry->level, __entry->grplo,
246 __entry->grphi, __entry->gpevent)
249 #ifdef CONFIG_RCU_NOCB_CPU
251 * Tracepoint for RCU no-CBs CPU callback handoffs. This event is intended
252 * to assist debugging of these handoffs.
254 * The first argument is the name of the RCU flavor, and the second is
255 * the number of the offloaded CPU are extracted. The third and final
256 * argument is a string as follows:
258 * "WakeEmpty": Wake rcuo kthread, first CB to empty list.
259 * "WakeEmptyIsDeferred": Wake rcuo kthread later, first CB to empty list.
260 * "WakeOvf": Wake rcuo kthread, CB list is huge.
261 * "WakeOvfIsDeferred": Wake rcuo kthread later, CB list is huge.
262 * "WakeNot": Don't wake rcuo kthread.
263 * "WakeNotPoll": Don't wake rcuo kthread because it is polling.
264 * "DeferredWake": Carried out the "IsDeferred" wakeup.
265 * "Poll": Start of new polling cycle for rcu_nocb_poll.
266 * "Sleep": Sleep waiting for CBs for !rcu_nocb_poll.
267 * "WokeEmpty": rcuo kthread woke to find empty list.
268 * "WokeNonEmpty": rcuo kthread woke to find non-empty list.
269 * "WaitQueue": Enqueue partially done, timed wait for it to complete.
270 * "WokeQueue": Partial enqueue now complete.
272 TRACE_EVENT(rcu_nocb_wake,
274 TP_PROTO(const char *rcuname, int cpu, const char *reason),
276 TP_ARGS(rcuname, cpu, reason),
279 __field(const char *, rcuname)
281 __field(const char *, reason)
285 __entry->rcuname = rcuname;
287 __entry->reason = reason;
290 TP_printk("%s %d %s", __entry->rcuname, __entry->cpu, __entry->reason)
295 * Tracepoint for tasks blocking within preemptible-RCU read-side
296 * critical sections. Track the type of RCU (which one day might
297 * include SRCU), the grace-period number that the task is blocking
298 * (the current or the next), and the task's PID.
300 TRACE_EVENT(rcu_preempt_task,
302 TP_PROTO(const char *rcuname, int pid, unsigned long gp_seq),
304 TP_ARGS(rcuname, pid, gp_seq),
307 __field(const char *, rcuname)
308 __field(unsigned long, gp_seq)
313 __entry->rcuname = rcuname;
314 __entry->gp_seq = gp_seq;
318 TP_printk("%s %lu %d",
319 __entry->rcuname, __entry->gp_seq, __entry->pid)
323 * Tracepoint for tasks that blocked within a given preemptible-RCU
324 * read-side critical section exiting that critical section. Track the
325 * type of RCU (which one day might include SRCU) and the task's PID.
327 TRACE_EVENT(rcu_unlock_preempted_task,
329 TP_PROTO(const char *rcuname, unsigned long gp_seq, int pid),
331 TP_ARGS(rcuname, gp_seq, pid),
334 __field(const char *, rcuname)
335 __field(unsigned long, gp_seq)
340 __entry->rcuname = rcuname;
341 __entry->gp_seq = gp_seq;
345 TP_printk("%s %lu %d", __entry->rcuname, __entry->gp_seq, __entry->pid)
349 * Tracepoint for quiescent-state-reporting events. These are
350 * distinguished by the type of RCU, the grace-period number, the
351 * mask of quiescent lower-level entities, the rcu_node structure level,
352 * the starting and ending CPU covered by the rcu_node structure, and
353 * whether there are any blocked tasks blocking the current grace period.
354 * All but the type of RCU are extracted from the rcu_node structure.
356 TRACE_EVENT(rcu_quiescent_state_report,
358 TP_PROTO(const char *rcuname, unsigned long gp_seq,
359 unsigned long mask, unsigned long qsmask,
360 u8 level, int grplo, int grphi, int gp_tasks),
362 TP_ARGS(rcuname, gp_seq, mask, qsmask, level, grplo, grphi, gp_tasks),
365 __field(const char *, rcuname)
366 __field(unsigned long, gp_seq)
367 __field(unsigned long, mask)
368 __field(unsigned long, qsmask)
372 __field(u8, gp_tasks)
376 __entry->rcuname = rcuname;
377 __entry->gp_seq = gp_seq;
378 __entry->mask = mask;
379 __entry->qsmask = qsmask;
380 __entry->level = level;
381 __entry->grplo = grplo;
382 __entry->grphi = grphi;
383 __entry->gp_tasks = gp_tasks;
386 TP_printk("%s %lu %lx>%lx %u %d %d %u",
387 __entry->rcuname, __entry->gp_seq,
388 __entry->mask, __entry->qsmask, __entry->level,
389 __entry->grplo, __entry->grphi, __entry->gp_tasks)
393 * Tracepoint for quiescent states detected by force_quiescent_state().
394 * These trace events include the type of RCU, the grace-period number
395 * that was blocked by the CPU, the CPU itself, and the type of quiescent
396 * state, which can be "dti" for dyntick-idle mode, "kick" when kicking
397 * a CPU that has been in dyntick-idle mode for too long, or "rqc" if the
398 * CPU got a quiescent state via its rcu_qs_ctr.
402 TP_PROTO(const char *rcuname, unsigned long gp_seq, int cpu, const char *qsevent),
404 TP_ARGS(rcuname, gp_seq, cpu, qsevent),
407 __field(const char *, rcuname)
408 __field(unsigned long, gp_seq)
410 __field(const char *, qsevent)
414 __entry->rcuname = rcuname;
415 __entry->gp_seq = gp_seq;
417 __entry->qsevent = qsevent;
420 TP_printk("%s %lu %d %s",
421 __entry->rcuname, __entry->gp_seq,
422 __entry->cpu, __entry->qsevent)
425 #endif /* #if defined(CONFIG_TREE_RCU) || defined(CONFIG_PREEMPT_RCU) */
428 * Tracepoint for dyntick-idle entry/exit events. These take a string
429 * as argument: "Start" for entering dyntick-idle mode, "Startirq" for
430 * entering it from irq/NMI, "End" for leaving it, "Endirq" for leaving it
431 * to irq/NMI, "--=" for events moving towards idle, and "++=" for events
432 * moving away from idle.
434 * These events also take a pair of numbers, which indicate the nesting
435 * depth before and after the event of interest, and a third number that is
436 * the ->dynticks counter. Note that task-related and interrupt-related
437 * events use two separate counters, and that the "++=" and "--=" events
438 * for irq/NMI will change the counter by two, otherwise by one.
440 TRACE_EVENT(rcu_dyntick,
442 TP_PROTO(const char *polarity, long oldnesting, long newnesting, atomic_t dynticks),
444 TP_ARGS(polarity, oldnesting, newnesting, dynticks),
447 __field(const char *, polarity)
448 __field(long, oldnesting)
449 __field(long, newnesting)
450 __field(int, dynticks)
454 __entry->polarity = polarity;
455 __entry->oldnesting = oldnesting;
456 __entry->newnesting = newnesting;
457 __entry->dynticks = atomic_read(&dynticks);
460 TP_printk("%s %lx %lx %#3x", __entry->polarity,
461 __entry->oldnesting, __entry->newnesting,
462 __entry->dynticks & 0xfff)
466 * Tracepoint for the registration of a single RCU callback function.
467 * The first argument is the type of RCU, the second argument is
468 * a pointer to the RCU callback itself, the third element is the
469 * number of lazy callbacks queued, and the fourth element is the
470 * total number of callbacks queued.
472 TRACE_EVENT(rcu_callback,
474 TP_PROTO(const char *rcuname, struct rcu_head *rhp, long qlen_lazy,
477 TP_ARGS(rcuname, rhp, qlen_lazy, qlen),
480 __field(const char *, rcuname)
482 __field(void *, func)
483 __field(long, qlen_lazy)
488 __entry->rcuname = rcuname;
490 __entry->func = rhp->func;
491 __entry->qlen_lazy = qlen_lazy;
492 __entry->qlen = qlen;
495 TP_printk("%s rhp=%p func=%pf %ld/%ld",
496 __entry->rcuname, __entry->rhp, __entry->func,
497 __entry->qlen_lazy, __entry->qlen)
501 * Tracepoint for the registration of a single RCU callback of the special
502 * kfree() form. The first argument is the RCU type, the second argument
503 * is a pointer to the RCU callback, the third argument is the offset
504 * of the callback within the enclosing RCU-protected data structure,
505 * the fourth argument is the number of lazy callbacks queued, and the
506 * fifth argument is the total number of callbacks queued.
508 TRACE_EVENT(rcu_kfree_callback,
510 TP_PROTO(const char *rcuname, struct rcu_head *rhp, unsigned long offset,
511 long qlen_lazy, long qlen),
513 TP_ARGS(rcuname, rhp, offset, qlen_lazy, qlen),
516 __field(const char *, rcuname)
518 __field(unsigned long, offset)
519 __field(long, qlen_lazy)
524 __entry->rcuname = rcuname;
526 __entry->offset = offset;
527 __entry->qlen_lazy = qlen_lazy;
528 __entry->qlen = qlen;
531 TP_printk("%s rhp=%p func=%ld %ld/%ld",
532 __entry->rcuname, __entry->rhp, __entry->offset,
533 __entry->qlen_lazy, __entry->qlen)
537 * Tracepoint for marking the beginning rcu_do_batch, performed to start
538 * RCU callback invocation. The first argument is the RCU flavor,
539 * the second is the number of lazy callbacks queued, the third is
540 * the total number of callbacks queued, and the fourth argument is
541 * the current RCU-callback batch limit.
543 TRACE_EVENT(rcu_batch_start,
545 TP_PROTO(const char *rcuname, long qlen_lazy, long qlen, long blimit),
547 TP_ARGS(rcuname, qlen_lazy, qlen, blimit),
550 __field(const char *, rcuname)
551 __field(long, qlen_lazy)
553 __field(long, blimit)
557 __entry->rcuname = rcuname;
558 __entry->qlen_lazy = qlen_lazy;
559 __entry->qlen = qlen;
560 __entry->blimit = blimit;
563 TP_printk("%s CBs=%ld/%ld bl=%ld",
564 __entry->rcuname, __entry->qlen_lazy, __entry->qlen,
569 * Tracepoint for the invocation of a single RCU callback function.
570 * The first argument is the type of RCU, and the second argument is
571 * a pointer to the RCU callback itself.
573 TRACE_EVENT(rcu_invoke_callback,
575 TP_PROTO(const char *rcuname, struct rcu_head *rhp),
577 TP_ARGS(rcuname, rhp),
580 __field(const char *, rcuname)
582 __field(void *, func)
586 __entry->rcuname = rcuname;
588 __entry->func = rhp->func;
591 TP_printk("%s rhp=%p func=%pf",
592 __entry->rcuname, __entry->rhp, __entry->func)
596 * Tracepoint for the invocation of a single RCU callback of the special
597 * kfree() form. The first argument is the RCU flavor, the second
598 * argument is a pointer to the RCU callback, and the third argument
599 * is the offset of the callback within the enclosing RCU-protected
602 TRACE_EVENT(rcu_invoke_kfree_callback,
604 TP_PROTO(const char *rcuname, struct rcu_head *rhp, unsigned long offset),
606 TP_ARGS(rcuname, rhp, offset),
609 __field(const char *, rcuname)
611 __field(unsigned long, offset)
615 __entry->rcuname = rcuname;
617 __entry->offset = offset;
620 TP_printk("%s rhp=%p func=%ld",
621 __entry->rcuname, __entry->rhp, __entry->offset)
625 * Tracepoint for exiting rcu_do_batch after RCU callbacks have been
626 * invoked. The first argument is the name of the RCU flavor,
627 * the second argument is number of callbacks actually invoked,
628 * the third argument (cb) is whether or not any of the callbacks that
629 * were ready to invoke at the beginning of this batch are still
630 * queued, the fourth argument (nr) is the return value of need_resched(),
631 * the fifth argument (iit) is 1 if the current task is the idle task,
632 * and the sixth argument (risk) is the return value from
633 * rcu_is_callbacks_kthread().
635 TRACE_EVENT(rcu_batch_end,
637 TP_PROTO(const char *rcuname, int callbacks_invoked,
638 char cb, char nr, char iit, char risk),
640 TP_ARGS(rcuname, callbacks_invoked, cb, nr, iit, risk),
643 __field(const char *, rcuname)
644 __field(int, callbacks_invoked)
652 __entry->rcuname = rcuname;
653 __entry->callbacks_invoked = callbacks_invoked;
657 __entry->risk = risk;
660 TP_printk("%s CBs-invoked=%d idle=%c%c%c%c",
661 __entry->rcuname, __entry->callbacks_invoked,
662 __entry->cb ? 'C' : '.',
663 __entry->nr ? 'S' : '.',
664 __entry->iit ? 'I' : '.',
665 __entry->risk ? 'R' : '.')
669 * Tracepoint for rcutorture readers. The first argument is the name
670 * of the RCU flavor from rcutorture's viewpoint and the second argument
671 * is the callback address. The third argument is the start time in
672 * seconds, and the last two arguments are the grace period numbers
673 * at the beginning and end of the read, respectively. Note that the
674 * callback address can be NULL.
676 #define RCUTORTURENAME_LEN 8
677 TRACE_EVENT(rcu_torture_read,
679 TP_PROTO(const char *rcutorturename, struct rcu_head *rhp,
680 unsigned long secs, unsigned long c_old, unsigned long c),
682 TP_ARGS(rcutorturename, rhp, secs, c_old, c),
685 __field(char, rcutorturename[RCUTORTURENAME_LEN])
686 __field(struct rcu_head *, rhp)
687 __field(unsigned long, secs)
688 __field(unsigned long, c_old)
689 __field(unsigned long, c)
693 strncpy(__entry->rcutorturename, rcutorturename,
695 __entry->rcutorturename[RCUTORTURENAME_LEN - 1] = 0;
697 __entry->secs = secs;
698 __entry->c_old = c_old;
702 TP_printk("%s torture read %p %luus c: %lu %lu",
703 __entry->rcutorturename, __entry->rhp,
704 __entry->secs, __entry->c_old, __entry->c)
708 * Tracepoint for _rcu_barrier() execution. The string "s" describes
709 * the _rcu_barrier phase:
710 * "Begin": _rcu_barrier() started.
711 * "EarlyExit": _rcu_barrier() piggybacked, thus early exit.
712 * "Inc1": _rcu_barrier() piggyback check counter incremented.
713 * "OfflineNoCB": _rcu_barrier() found callback on never-online CPU
714 * "OnlineNoCB": _rcu_barrier() found online no-CBs CPU.
715 * "OnlineQ": _rcu_barrier() found online CPU with callbacks.
716 * "OnlineNQ": _rcu_barrier() found online CPU, no callbacks.
717 * "IRQ": An rcu_barrier_callback() callback posted on remote CPU.
718 * "IRQNQ": An rcu_barrier_callback() callback found no callbacks.
719 * "CB": An rcu_barrier_callback() invoked a callback, not the last.
720 * "LastCB": An rcu_barrier_callback() invoked the last callback.
721 * "Inc2": _rcu_barrier() piggyback check counter incremented.
722 * The "cpu" argument is the CPU or -1 if meaningless, the "cnt" argument
723 * is the count of remaining callbacks, and "done" is the piggybacking count.
725 TRACE_EVENT(rcu_barrier,
727 TP_PROTO(const char *rcuname, const char *s, int cpu, int cnt, unsigned long done),
729 TP_ARGS(rcuname, s, cpu, cnt, done),
732 __field(const char *, rcuname)
733 __field(const char *, s)
736 __field(unsigned long, done)
740 __entry->rcuname = rcuname;
744 __entry->done = done;
747 TP_printk("%s %s cpu %d remaining %d # %lu",
748 __entry->rcuname, __entry->s, __entry->cpu, __entry->cnt,
752 #else /* #ifdef CONFIG_RCU_TRACE */
754 #define trace_rcu_grace_period(rcuname, gp_seq, gpevent) do { } while (0)
755 #define trace_rcu_future_grace_period(rcuname, gp_seq, gp_seq_req, \
756 level, grplo, grphi, event) \
758 #define trace_rcu_grace_period_init(rcuname, gp_seq, level, grplo, grphi, \
759 qsmask) do { } while (0)
760 #define trace_rcu_exp_grace_period(rcuname, gqseq, gpevent) \
762 #define trace_rcu_exp_funnel_lock(rcuname, level, grplo, grphi, gpevent) \
764 #define trace_rcu_nocb_wake(rcuname, cpu, reason) do { } while (0)
765 #define trace_rcu_preempt_task(rcuname, pid, gp_seq) do { } while (0)
766 #define trace_rcu_unlock_preempted_task(rcuname, gp_seq, pid) do { } while (0)
767 #define trace_rcu_quiescent_state_report(rcuname, gp_seq, mask, qsmask, level, \
768 grplo, grphi, gp_tasks) do { } \
770 #define trace_rcu_fqs(rcuname, gp_seq, cpu, qsevent) do { } while (0)
771 #define trace_rcu_dyntick(polarity, oldnesting, newnesting, dyntick) do { } while (0)
772 #define trace_rcu_callback(rcuname, rhp, qlen_lazy, qlen) do { } while (0)
773 #define trace_rcu_kfree_callback(rcuname, rhp, offset, qlen_lazy, qlen) \
775 #define trace_rcu_batch_start(rcuname, qlen_lazy, qlen, blimit) \
777 #define trace_rcu_invoke_callback(rcuname, rhp) do { } while (0)
778 #define trace_rcu_invoke_kfree_callback(rcuname, rhp, offset) do { } while (0)
779 #define trace_rcu_batch_end(rcuname, callbacks_invoked, cb, nr, iit, risk) \
781 #define trace_rcu_torture_read(rcutorturename, rhp, secs, c_old, c) \
783 #define trace_rcu_barrier(name, s, cpu, cnt, done) do { } while (0)
785 #endif /* #else #ifdef CONFIG_RCU_TRACE */
787 #endif /* _TRACE_RCU_H */
789 /* This part must be outside protection */
790 #include <trace/define_trace.h>