2 #define TRACE_SYSTEM rcu
4 #if !defined(_TRACE_RCU_H) || defined(TRACE_HEADER_MULTI_READ)
7 #include <linux/tracepoint.h>
8 #include <linux/version.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 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,12,0))
24 TP_PROTO(const char *s),
25 #else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,12,0)) */
27 #endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,12,0)) */
39 TP_printk("%s", __get_str(s))
42 #ifdef CONFIG_RCU_TRACE
44 #if defined(CONFIG_TREE_RCU) || defined(CONFIG_TREE_PREEMPT_RCU)
47 * Tracepoint for grace-period events: starting and ending a grace
48 * period ("start" and "end", respectively), a CPU noting the start
49 * of a new grace period or the end of an old grace period ("cpustart"
50 * and "cpuend", respectively), a CPU passing through a quiescent
51 * state ("cpuqs"), a CPU coming online or going offline ("cpuonl"
52 * and "cpuofl", respectively), and a CPU being kicked for being too
53 * long in dyntick-idle mode ("kick").
55 TRACE_EVENT(rcu_grace_period,
57 TP_PROTO(char *rcuname, unsigned long gpnum, char *gpevent),
59 TP_ARGS(rcuname, gpnum, gpevent),
62 __string(rcuname, rcuname)
63 __field(unsigned long, gpnum)
64 __string(gpevent, gpevent)
68 tp_strcpy(rcuname, rcuname)
69 tp_assign(gpnum, gpnum)
70 tp_strcpy(gpevent, gpevent)
73 TP_printk("%s %lu %s",
74 __get_str(rcuname), __entry->gpnum, __get_str(gpevent))
78 * Tracepoint for grace-period-initialization events. These are
79 * distinguished by the type of RCU, the new grace-period number, the
80 * rcu_node structure level, the starting and ending CPU covered by the
81 * rcu_node structure, and the mask of CPUs that will be waited for.
82 * All but the type of RCU are extracted from the rcu_node structure.
84 TRACE_EVENT(rcu_grace_period_init,
86 TP_PROTO(char *rcuname, unsigned long gpnum, u8 level,
87 int grplo, int grphi, unsigned long qsmask),
89 TP_ARGS(rcuname, gpnum, level, grplo, grphi, qsmask),
92 __string(rcuname, rcuname)
93 __field(unsigned long, gpnum)
97 __field(unsigned long, qsmask)
101 tp_strcpy(rcuname, rcuname)
102 tp_assign(gpnum, gpnum)
103 tp_assign(level, level)
104 tp_assign(grplo, grplo)
105 tp_assign(grphi, grphi)
106 tp_assign(qsmask, qsmask)
109 TP_printk("%s %lu %u %d %d %lx",
110 __get_str(rcuname), __entry->gpnum, __entry->level,
111 __entry->grplo, __entry->grphi, __entry->qsmask)
115 * Tracepoint for tasks blocking within preemptible-RCU read-side
116 * critical sections. Track the type of RCU (which one day might
117 * include SRCU), the grace-period number that the task is blocking
118 * (the current or the next), and the task's PID.
120 TRACE_EVENT(rcu_preempt_task,
122 TP_PROTO(char *rcuname, int pid, unsigned long gpnum),
124 TP_ARGS(rcuname, pid, gpnum),
127 __string(rcuname, rcuname)
128 __field(unsigned long, gpnum)
133 tp_strcpy(rcuname, rcuname)
134 tp_assign(gpnum, gpnum)
138 TP_printk("%s %lu %d",
139 __get_str(rcuname), __entry->gpnum, __entry->pid)
143 * Tracepoint for tasks that blocked within a given preemptible-RCU
144 * read-side critical section exiting that critical section. Track the
145 * type of RCU (which one day might include SRCU) and the task's PID.
147 TRACE_EVENT(rcu_unlock_preempted_task,
149 TP_PROTO(char *rcuname, unsigned long gpnum, int pid),
151 TP_ARGS(rcuname, gpnum, pid),
154 __string(rcuname, rcuname)
155 __field(unsigned long, gpnum)
160 tp_strcpy(rcuname, rcuname)
161 tp_assign(gpnum, gpnum)
165 TP_printk("%s %lu %d", __get_str(rcuname), __entry->gpnum, __entry->pid)
169 * Tracepoint for quiescent-state-reporting events. These are
170 * distinguished by the type of RCU, the grace-period number, the
171 * mask of quiescent lower-level entities, the rcu_node structure level,
172 * the starting and ending CPU covered by the rcu_node structure, and
173 * whether there are any blocked tasks blocking the current grace period.
174 * All but the type of RCU are extracted from the rcu_node structure.
176 TRACE_EVENT(rcu_quiescent_state_report,
178 TP_PROTO(char *rcuname, unsigned long gpnum,
179 unsigned long mask, unsigned long qsmask,
180 u8 level, int grplo, int grphi, int gp_tasks),
182 TP_ARGS(rcuname, gpnum, mask, qsmask, level, grplo, grphi, gp_tasks),
185 __string(rcuname, rcuname)
186 __field(unsigned long, gpnum)
187 __field(unsigned long, mask)
188 __field(unsigned long, qsmask)
192 __field(u8, gp_tasks)
196 tp_strcpy(rcuname, rcuname)
197 tp_assign(gpnum, gpnum)
198 tp_assign(mask, mask)
199 tp_assign(qsmask, qsmask)
200 tp_assign(level, level)
201 tp_assign(grplo, grplo)
202 tp_assign(grphi, grphi)
203 tp_assign(gp_tasks, gp_tasks)
206 TP_printk("%s %lu %lx>%lx %u %d %d %u",
207 __get_str(rcuname), __entry->gpnum,
208 __entry->mask, __entry->qsmask, __entry->level,
209 __entry->grplo, __entry->grphi, __entry->gp_tasks)
213 * Tracepoint for quiescent states detected by force_quiescent_state().
214 * These trace events include the type of RCU, the grace-period number
215 * that was blocked by the CPU, the CPU itself, and the type of quiescent
216 * state, which can be "dti" for dyntick-idle mode, "ofl" for CPU offline,
217 * or "kick" when kicking a CPU that has been in dyntick-idle mode for
222 TP_PROTO(char *rcuname, unsigned long gpnum, int cpu, char *qsevent),
224 TP_ARGS(rcuname, gpnum, cpu, qsevent),
227 __string(rcuname, rcuname)
228 __field(unsigned long, gpnum)
230 __string(qsevent, qsevent)
234 tp_strcpy(rcuname, rcuname)
235 tp_assign(gpnum, gpnum)
237 tp_strcpy(qsevent, qsevent)
240 TP_printk("%s %lu %d %s",
241 __get_str(rcuname), __entry->gpnum,
242 __entry->cpu, __get_str(qsevent))
245 #endif /* #if defined(CONFIG_TREE_RCU) || defined(CONFIG_TREE_PREEMPT_RCU) */
248 * Tracepoint for dyntick-idle entry/exit events. These take a string
249 * as argument: "Start" for entering dyntick-idle mode, "End" for
250 * leaving it, "--=" for events moving towards idle, and "++=" for events
251 * moving away from idle. "Error on entry: not idle task" and "Error on
252 * exit: not idle task" indicate that a non-idle task is erroneously
253 * toying with the idle loop.
255 * These events also take a pair of numbers, which indicate the nesting
256 * depth before and after the event of interest. Note that task-related
257 * events use the upper bits of each number, while interrupt-related
258 * events use the lower bits.
260 TRACE_EVENT(rcu_dyntick,
262 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0))
263 TP_PROTO(char *polarity, long long oldnesting, long long newnesting),
265 TP_ARGS(polarity, oldnesting, newnesting),
267 TP_PROTO(char *polarity),
273 __string(polarity, polarity)
274 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0))
275 __field(long long, oldnesting)
276 __field(long long, newnesting)
281 tp_strcpy(polarity, polarity)
282 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0))
283 tp_assign(oldnesting, oldnesting)
284 tp_assign(newnesting, newnesting)
288 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0))
289 TP_printk("%s %llx %llx", __get_str(polarity),
290 __entry->oldnesting, __entry->newnesting)
292 TP_printk("%s", __get_str(polarity))
296 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0))
298 * Tracepoint for RCU preparation for idle, the goal being to get RCU
299 * processing done so that the current CPU can shut off its scheduling
300 * clock and enter dyntick-idle mode. One way to accomplish this is
301 * to drain all RCU callbacks from this CPU, and the other is to have
302 * done everything RCU requires for the current grace period. In this
303 * latter case, the CPU will be awakened at the end of the current grace
304 * period in order to process the remainder of its callbacks.
306 * These tracepoints take a string as argument:
308 * "No callbacks": Nothing to do, no callbacks on this CPU.
309 * "In holdoff": Nothing to do, holding off after unsuccessful attempt.
310 * "Begin holdoff": Attempt failed, don't retry until next jiffy.
311 * "Dyntick with callbacks": Entering dyntick-idle despite callbacks.
312 * "Dyntick with lazy callbacks": Entering dyntick-idle w/lazy callbacks.
313 * "More callbacks": Still more callbacks, try again to clear them out.
314 * "Callbacks drained": All callbacks processed, off to dyntick idle!
315 * "Timer": Timer fired to cause CPU to continue processing callbacks.
316 * "Demigrate": Timer fired on wrong CPU, woke up correct CPU.
317 * "Cleanup after idle": Idle exited, timer canceled.
319 TRACE_EVENT(rcu_prep_idle,
321 TP_PROTO(char *reason),
326 __string(reason, reason)
330 tp_strcpy(reason, reason)
333 TP_printk("%s", __get_str(reason))
338 * Tracepoint for the registration of a single RCU callback function.
339 * The first argument is the type of RCU, the second argument is
340 * a pointer to the RCU callback itself, the third element is the
341 * number of lazy callbacks queued, and the fourth element is the
342 * total number of callbacks queued.
344 TRACE_EVENT(rcu_callback,
346 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,4,0))
347 TP_PROTO(char *rcuname, struct rcu_head *rhp, long qlen_lazy,
350 TP_ARGS(rcuname, rhp, qlen_lazy, qlen),
352 TP_PROTO(char *rcuname, struct rcu_head *rhp, long qlen),
354 TP_ARGS(rcuname, rhp, qlen),
358 __string(rcuname, rcuname)
360 __field(void *, func)
361 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,4,0))
362 __field(long, qlen_lazy)
368 tp_strcpy(rcuname, rcuname)
370 tp_assign(func, rhp->func)
371 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,4,0))
372 tp_assign(qlen_lazy, qlen_lazy)
374 tp_assign(qlen, qlen)
377 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,4,0))
378 TP_printk("%s rhp=%p func=%pf %ld/%ld",
379 __get_str(rcuname), __entry->rhp, __entry->func,
380 __entry->qlen_lazy, __entry->qlen)
382 TP_printk("%s rhp=%p func=%pf %ld",
383 __get_str(rcuname), __entry->rhp, __entry->func,
389 * Tracepoint for the registration of a single RCU callback of the special
390 * kfree() form. The first argument is the RCU type, the second argument
391 * is a pointer to the RCU callback, the third argument is the offset
392 * of the callback within the enclosing RCU-protected data structure,
393 * the fourth argument is the number of lazy callbacks queued, and the
394 * fifth argument is the total number of callbacks queued.
396 TRACE_EVENT(rcu_kfree_callback,
398 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,4,0))
399 TP_PROTO(char *rcuname, struct rcu_head *rhp, unsigned long offset,
400 long qlen_lazy, long qlen),
402 TP_ARGS(rcuname, rhp, offset, qlen_lazy, qlen),
404 TP_PROTO(char *rcuname, struct rcu_head *rhp, unsigned long offset,
407 TP_ARGS(rcuname, rhp, offset, qlen),
411 __string(rcuname, rcuname)
413 __field(unsigned long, offset)
414 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,4,0))
415 __field(long, qlen_lazy)
421 tp_strcpy(rcuname, rcuname)
423 tp_assign(offset, offset)
424 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,4,0))
425 tp_assign(qlen_lazy, qlen_lazy)
427 tp_assign(qlen, qlen)
430 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,4,0))
431 TP_printk("%s rhp=%p func=%ld %ld/%ld",
432 __get_str(rcuname), __entry->rhp, __entry->offset,
433 __entry->qlen_lazy, __entry->qlen)
435 TP_printk("%s rhp=%p func=%ld %ld",
436 __get_str(rcuname), __entry->rhp, __entry->offset,
442 * Tracepoint for marking the beginning rcu_do_batch, performed to start
443 * RCU callback invocation. The first argument is the RCU flavor,
444 * the second is the number of lazy callbacks queued, the third is
445 * the total number of callbacks queued, and the fourth argument is
446 * the current RCU-callback batch limit.
448 TRACE_EVENT(rcu_batch_start,
450 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,9,0))
451 TP_PROTO(char *rcuname, long qlen_lazy, long qlen, long blimit),
453 TP_ARGS(rcuname, qlen_lazy, qlen, blimit),
454 #elif (LINUX_VERSION_CODE >= KERNEL_VERSION(3,4,0))
455 TP_PROTO(char *rcuname, long qlen_lazy, long qlen, int blimit),
457 TP_ARGS(rcuname, qlen_lazy, qlen, blimit),
459 TP_PROTO(char *rcuname, long qlen, int blimit),
461 TP_ARGS(rcuname, qlen, blimit),
465 __string(rcuname, rcuname)
466 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,4,0))
467 __field(long, qlen_lazy)
470 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,9,0))
471 __field(long, blimit)
478 tp_strcpy(rcuname, rcuname)
479 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,4,0))
480 tp_assign(qlen_lazy, qlen_lazy)
482 tp_assign(qlen, qlen)
483 tp_assign(blimit, blimit)
486 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,9,0))
487 TP_printk("%s CBs=%ld/%ld bl=%ld",
488 __get_str(rcuname), __entry->qlen_lazy, __entry->qlen,
490 #elif (LINUX_VERSION_CODE >= KERNEL_VERSION(3,4,0))
491 TP_printk("%s CBs=%ld/%ld bl=%d",
492 __get_str(rcuname), __entry->qlen_lazy, __entry->qlen,
495 TP_printk("%s CBs=%ld bl=%d",
496 __get_str(rcuname), __entry->qlen, __entry->blimit)
501 * Tracepoint for the invocation of a single RCU callback function.
502 * The first argument is the type of RCU, and the second argument is
503 * a pointer to the RCU callback itself.
505 TRACE_EVENT(rcu_invoke_callback,
507 TP_PROTO(char *rcuname, struct rcu_head *rhp),
509 TP_ARGS(rcuname, rhp),
512 __string(rcuname, rcuname)
514 __field(void *, func)
518 tp_strcpy(rcuname, rcuname)
520 tp_assign(func, rhp->func)
523 TP_printk("%s rhp=%p func=%pf",
524 __get_str(rcuname), __entry->rhp, __entry->func)
528 * Tracepoint for the invocation of a single RCU callback of the special
529 * kfree() form. The first argument is the RCU flavor, the second
530 * argument is a pointer to the RCU callback, and the third argument
531 * is the offset of the callback within the enclosing RCU-protected
534 TRACE_EVENT(rcu_invoke_kfree_callback,
536 TP_PROTO(char *rcuname, struct rcu_head *rhp, unsigned long offset),
538 TP_ARGS(rcuname, rhp, offset),
541 __string(rcuname, rcuname)
543 __field(unsigned long, offset)
547 tp_strcpy(rcuname, rcuname)
549 tp_assign(offset, offset)
552 TP_printk("%s rhp=%p func=%ld",
553 __get_str(rcuname), __entry->rhp, __entry->offset)
557 * Tracepoint for exiting rcu_do_batch after RCU callbacks have been
558 * invoked. The first argument is the name of the RCU flavor,
559 * the second argument is number of callbacks actually invoked,
560 * the third argument (cb) is whether or not any of the callbacks that
561 * were ready to invoke at the beginning of this batch are still
562 * queued, the fourth argument (nr) is the return value of need_resched(),
563 * the fifth argument (iit) is 1 if the current task is the idle task,
564 * and the sixth argument (risk) is the return value from
565 * rcu_is_callbacks_kthread().
567 TRACE_EVENT(rcu_batch_end,
569 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0))
570 TP_PROTO(char *rcuname, int callbacks_invoked,
571 bool cb, bool nr, bool iit, bool risk),
573 TP_ARGS(rcuname, callbacks_invoked, cb, nr, iit, risk),
575 TP_PROTO(char *rcuname, int callbacks_invoked),
577 TP_ARGS(rcuname, callbacks_invoked),
581 __string(rcuname, rcuname)
582 __field(int, callbacks_invoked)
583 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0))
592 tp_strcpy(rcuname, rcuname)
593 tp_assign(callbacks_invoked, callbacks_invoked)
594 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0))
598 tp_assign(risk, risk)
602 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0))
603 TP_printk("%s CBs-invoked=%d idle=%c%c%c%c",
604 __get_str(rcuname), __entry->callbacks_invoked,
605 __entry->cb ? 'C' : '.',
606 __entry->nr ? 'S' : '.',
607 __entry->iit ? 'I' : '.',
608 __entry->risk ? 'R' : '.')
610 TP_printk("%s CBs-invoked=%d",
611 __get_str(rcuname), __entry->callbacks_invoked)
615 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0))
617 * Tracepoint for rcutorture readers. The first argument is the name
618 * of the RCU flavor from rcutorture's viewpoint and the second argument
619 * is the callback address.
621 TRACE_EVENT(rcu_torture_read,
623 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,9,0))
624 TP_PROTO(char *rcutorturename, struct rcu_head *rhp,
625 unsigned long secs, unsigned long c_old, unsigned long c),
627 TP_ARGS(rcutorturename, rhp, secs, c_old, c),
629 TP_PROTO(char *rcutorturename, struct rcu_head *rhp),
631 TP_ARGS(rcutorturename, rhp),
635 __string(rcutorturename, rcutorturename)
636 __field(struct rcu_head *, rhp)
637 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,9,0))
638 __field(unsigned long, secs)
639 __field(unsigned long, c_old)
640 __field(unsigned long, c)
645 tp_strcpy(rcutorturename, rcutorturename)
647 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,9,0))
648 tp_assign(secs, secs)
649 tp_assign(c_old, c_old)
654 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,9,0))
655 TP_printk("%s torture read %p %luus c: %lu %lu",
656 __entry->rcutorturename, __entry->rhp,
657 __entry->secs, __entry->c_old, __entry->c)
659 TP_printk("%s torture read %p",
660 __get_str(rcutorturename), __entry->rhp)
665 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,6,0))
667 * Tracepoint for _rcu_barrier() execution. The string "s" describes
668 * the _rcu_barrier phase:
669 * "Begin": rcu_barrier_callback() started.
670 * "Check": rcu_barrier_callback() checking for piggybacking.
671 * "EarlyExit": rcu_barrier_callback() piggybacked, thus early exit.
672 * "Inc1": rcu_barrier_callback() piggyback check counter incremented.
673 * "Offline": rcu_barrier_callback() found offline CPU
674 * "OnlineQ": rcu_barrier_callback() found online CPU with callbacks.
675 * "OnlineNQ": rcu_barrier_callback() found online CPU, no callbacks.
676 * "IRQ": An rcu_barrier_callback() callback posted on remote CPU.
677 * "CB": An rcu_barrier_callback() invoked a callback, not the last.
678 * "LastCB": An rcu_barrier_callback() invoked the last callback.
679 * "Inc2": rcu_barrier_callback() piggyback check counter incremented.
680 * The "cpu" argument is the CPU or -1 if meaningless, the "cnt" argument
681 * is the count of remaining callbacks, and "done" is the piggybacking count.
683 TRACE_EVENT(rcu_barrier,
685 TP_PROTO(char *rcuname, char *s, int cpu, int cnt, unsigned long done),
687 TP_ARGS(rcuname, s, cpu, cnt, done),
690 __string(rcuname, rcuname)
694 __field(unsigned long, done)
698 tp_strcpy(rcuname, rcuname)
702 tp_assign(done, done)
705 TP_printk("%s %s cpu %d remaining %d # %lu",
706 __get_str(rcuname), __get_str(s), __entry->cpu, __entry->cnt,
711 #else /* #ifdef CONFIG_RCU_TRACE */
713 #define trace_rcu_grace_period(rcuname, gpnum, gpevent) do { } while (0)
714 #define trace_rcu_grace_period_init(rcuname, gpnum, level, grplo, grphi, \
715 qsmask) do { } while (0)
716 #define trace_rcu_preempt_task(rcuname, pid, gpnum) do { } while (0)
717 #define trace_rcu_unlock_preempted_task(rcuname, gpnum, pid) do { } while (0)
718 #define trace_rcu_quiescent_state_report(rcuname, gpnum, mask, qsmask, level, \
719 grplo, grphi, gp_tasks) do { } \
721 #define trace_rcu_fqs(rcuname, gpnum, cpu, qsevent) do { } while (0)
722 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0))
723 #define trace_rcu_dyntick(polarity, oldnesting, newnesting) do { } while (0)
725 #define trace_rcu_dyntick(polarity) do { } while (0)
727 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0))
728 #define trace_rcu_prep_idle(reason) do { } while (0)
730 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,4,0))
731 #define trace_rcu_callback(rcuname, rhp, qlen_lazy, qlen) do { } while (0)
732 #define trace_rcu_kfree_callback(rcuname, rhp, offset, qlen_lazy, qlen) \
734 #define trace_rcu_batch_start(rcuname, qlen_lazy, qlen, blimit) \
737 #define trace_rcu_callback(rcuname, rhp, qlen) do { } while (0)
738 #define trace_rcu_kfree_callback(rcuname, rhp, offset, qlen) do { } while (0)
739 #define trace_rcu_batch_start(rcuname, qlen, blimit) do { } while (0)
741 #define trace_rcu_invoke_callback(rcuname, rhp) do { } while (0)
742 #define trace_rcu_invoke_kfree_callback(rcuname, rhp, offset) do { } while (0)
743 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0))
744 #define trace_rcu_batch_end(rcuname, callbacks_invoked, cb, nr, iit, risk) \
747 #define trace_rcu_batch_end(rcuname, callbacks_invoked) do { } while (0)
749 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,9,0))
750 #define trace_rcu_torture_read(rcutorturename, rhp, secs, c_old, c) \
752 #elif (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0))
753 #define trace_rcu_torture_read(rcutorturename, rhp) do { } while (0)
755 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,6,0))
756 #define trace_rcu_barrier(name, s, cpu, cnt, done) do { } while (0)
758 #endif /* #else #ifdef CONFIG_RCU_TRACE */
760 #endif /* _TRACE_RCU_H */
762 /* This part must be outside protection */
763 #include "../../../probes/define_trace.h"