diff options
Diffstat (limited to 'include/trace/events/rcu.h')
-rw-r--r-- | include/trace/events/rcu.h | 98 |
1 files changed, 98 insertions, 0 deletions
diff --git a/include/trace/events/rcu.h b/include/trace/events/rcu.h new file mode 100644 index 0000000..db3f6e9 --- /dev/null +++ b/include/trace/events/rcu.h @@ -0,0 +1,98 @@ +#undef TRACE_SYSTEM +#define TRACE_SYSTEM rcu + +#if !defined(_TRACE_RCU_H) || defined(TRACE_HEADER_MULTI_READ) +#define _TRACE_RCU_H + +#include <linux/tracepoint.h> + +/* + * Tracepoint for calling rcu_do_batch, performed to start callback invocation: + */ +TRACE_EVENT(rcu_batch_start, + + TP_PROTO(long callbacks_ready, int blimit), + + TP_ARGS(callbacks_ready, blimit), + + TP_STRUCT__entry( + __field( long, callbacks_ready ) + __field( int, blimit ) + ), + + TP_fast_assign( + __entry->callbacks_ready = callbacks_ready; + __entry->blimit = blimit; + ), + + TP_printk("CBs=%ld bl=%d", __entry->callbacks_ready, __entry->blimit) +); + +/* + * Tracepoint for the invocation of a single RCU callback + */ +TRACE_EVENT(rcu_invoke_callback, + + TP_PROTO(struct rcu_head *rhp), + + TP_ARGS(rhp), + + TP_STRUCT__entry( + __field( void *, rhp ) + __field( void *, func ) + ), + + TP_fast_assign( + __entry->rhp = rhp; + __entry->func = rhp->func; + ), + + TP_printk("rhp=%p func=%pf", __entry->rhp, __entry->func) +); + +/* + * Tracepoint for the invocation of a single RCU kfree callback + */ +TRACE_EVENT(rcu_invoke_kfree_callback, + + TP_PROTO(struct rcu_head *rhp, unsigned long offset), + + TP_ARGS(rhp, offset), + + TP_STRUCT__entry( + __field(void *, rhp ) + __field(unsigned long, offset ) + ), + + TP_fast_assign( + __entry->rhp = rhp; + __entry->offset = offset; + ), + + TP_printk("rhp=%p func=%ld", __entry->rhp, __entry->offset) +); + +/* + * Tracepoint for leaving rcu_do_batch, performed after callback invocation: + */ +TRACE_EVENT(rcu_batch_end, + + TP_PROTO(int callbacks_invoked), + + TP_ARGS(callbacks_invoked), + + TP_STRUCT__entry( + __field( int, callbacks_invoked ) + ), + + TP_fast_assign( + __entry->callbacks_invoked = callbacks_invoked; + ), + + TP_printk("CBs-invoked=%d", __entry->callbacks_invoked) +); + +#endif /* _TRACE_RCU_H */ + +/* This part must be outside protection */ +#include <trace/define_trace.h> |