diff options
Diffstat (limited to 'include/trace/events/rcu.h')
-rw-r--r-- | include/trace/events/rcu.h | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/include/trace/events/rcu.h b/include/trace/events/rcu.h index d274734b2aa4..5bde94d8585b 100644 --- a/include/trace/events/rcu.h +++ b/include/trace/events/rcu.h | |||
@@ -541,6 +541,50 @@ TRACE_EVENT(rcu_torture_read, | |||
541 | __entry->rcutorturename, __entry->rhp) | 541 | __entry->rcutorturename, __entry->rhp) |
542 | ); | 542 | ); |
543 | 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 | |||
544 | #else /* #ifdef CONFIG_RCU_TRACE */ | 588 | #else /* #ifdef CONFIG_RCU_TRACE */ |
545 | 589 | ||
546 | #define trace_rcu_grace_period(rcuname, gpnum, gpevent) do { } while (0) | 590 | #define trace_rcu_grace_period(rcuname, gpnum, gpevent) do { } while (0) |
@@ -564,6 +608,7 @@ TRACE_EVENT(rcu_torture_read, | |||
564 | #define trace_rcu_batch_end(rcuname, callbacks_invoked, cb, nr, iit, risk) \ | 608 | #define trace_rcu_batch_end(rcuname, callbacks_invoked, cb, nr, iit, risk) \ |
565 | do { } while (0) | 609 | do { } while (0) |
566 | #define trace_rcu_torture_read(rcutorturename, rhp) 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) | ||
567 | 612 | ||
568 | #endif /* #else #ifdef CONFIG_RCU_TRACE */ | 613 | #endif /* #else #ifdef CONFIG_RCU_TRACE */ |
569 | 614 | ||