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#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 start/end markers used for utilization calculations.
* By convention, the string is of the following forms:
*
* "Start <activity>" -- Mark the start of the specified activity,
* such as "context switch". Nesting is permitted.
* "End <activity>" -- Mark the end of the specified activity.
*/
TRACE_EVENT(rcu_utilization,
TP_PROTO(char *s),
TP_ARGS(s),
TP_STRUCT__entry(
__field(char *, s)
),
TP_fast_assign(
__entry->s = s;
),
TP_printk("%s", __entry->s)
);
/*
* Tracepoint for marking the beginning rcu_do_batch, performed to start
* RCU callback invocation. The first argument is the total number of
* callbacks (including those that are not yet ready to be invoked),
* and the second argument is the current RCU-callback batch limit.
*/
TRACE_EVENT(rcu_batch_start,
TP_PROTO(long qlen, int blimit),
TP_ARGS(qlen, blimit),
TP_STRUCT__entry(
__field(long, qlen)
__field(int, blimit)
),
TP_fast_assign(
__entry->qlen = qlen;
__entry->blimit = blimit;
),
TP_printk("CBs=%ld bl=%d", __entry->qlen, __entry->blimit)
);
/*
* Tracepoint for the invocation of a single RCU callback function.
* The argument is a pointer to the RCU callback itself.
*/
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 callback of the special
* kfree() form. The first argument is a pointer to the RCU callback
* and the second argument is the offset of the callback within the
* enclosing RCU-protected data structure.
*/
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 exiting rcu_do_batch after RCU callbacks have been
* invoked. The first argument is the number of callbacks actually invoked.
*/
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>
|
