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| author | Paul E. McKenney <paul.mckenney@linaro.org> | 2011-06-21 01:14:54 -0700 |
|---|---|---|
| committer | Paul E. McKenney <paulmck@linux.vnet.ibm.com> | 2011-09-28 21:38:15 -0700 |
| commit | 72fe701b70e6ced35d734b676c13efbc8fc769a9 (patch) | |
| tree | 87bece8406b18e27409a33355c384c9f759915ae /include/trace | |
| parent | e99033c5c160f1f247c665923a66acec693a967c (diff) | |
| download | linux-3.10-72fe701b70e6ced35d734b676c13efbc8fc769a9.tar.gz linux-3.10-72fe701b70e6ced35d734b676c13efbc8fc769a9.tar.bz2 linux-3.10-72fe701b70e6ced35d734b676c13efbc8fc769a9.zip | |
rcu: Add RCU type to callback-invocation tracing
Add a string to the rcu_batch_start() and rcu_batch_end() trace
messages that indicates the RCU type ("rcu_sched", "rcu_bh", or
"rcu_preempt"). The trace messages for the actual invocations
themselves are not marked, as it should be clear from the
rcu_batch_start() and rcu_batch_end() events before and after.
Signed-off-by: Paul E. McKenney <paul.mckenney@linaro.org>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Diffstat (limited to 'include/trace')
| -rw-r--r-- | include/trace/events/rcu.h | 28 |
1 files changed, 18 insertions, 10 deletions
diff --git a/include/trace/events/rcu.h b/include/trace/events/rcu.h index ab458eb689f..508824e5a77 100644 --- a/include/trace/events/rcu.h +++ b/include/trace/events/rcu.h @@ -33,27 +33,31 @@ TRACE_EVENT(rcu_utilization, /* * 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. + * RCU callback invocation. The first argument is the RCU flavor, + * the second is the total number of callbacks (including those that + * are not yet ready to be invoked), and the third argument is the + * current RCU-callback batch limit. */ TRACE_EVENT(rcu_batch_start, - TP_PROTO(long qlen, int blimit), + TP_PROTO(char *rcuname, long qlen, int blimit), - TP_ARGS(qlen, blimit), + TP_ARGS(rcuname, qlen, blimit), TP_STRUCT__entry( + __field(char *, rcuname) __field(long, qlen) __field(int, blimit) ), TP_fast_assign( + __entry->rcuname = rcuname; __entry->qlen = qlen; __entry->blimit = blimit; ), - TP_printk("CBs=%ld bl=%d", __entry->qlen, __entry->blimit) + TP_printk("%s CBs=%ld bl=%d", + __entry->rcuname, __entry->qlen, __entry->blimit) ); /* @@ -106,23 +110,27 @@ TRACE_EVENT(rcu_invoke_kfree_callback, /* * Tracepoint for exiting rcu_do_batch after RCU callbacks have been - * invoked. The first argument is the number of callbacks actually invoked. + * invoked. The first argument is the name of the RCU flavor and + * the second argument is number of callbacks actually invoked. */ TRACE_EVENT(rcu_batch_end, - TP_PROTO(int callbacks_invoked), + TP_PROTO(char *rcuname, int callbacks_invoked), - TP_ARGS(callbacks_invoked), + TP_ARGS(rcuname, callbacks_invoked), TP_STRUCT__entry( + __field(char *, rcuname) __field(int, callbacks_invoked) ), TP_fast_assign( + __entry->rcuname = rcuname; __entry->callbacks_invoked = callbacks_invoked; ), - TP_printk("CBs-invoked=%d", __entry->callbacks_invoked) + TP_printk("%s CBs-invoked=%d", + __entry->rcuname, __entry->callbacks_invoked) ); #endif /* _TRACE_RCU_H */ |