tracing: Drop lock_acquired waittime field
Drop the waittime field from the lock_acquired event, we can
calculate it by substracting the lock_acquired event timestamp
with the matching lock_acquire one.
It is not needed and takes useless space in the traces.
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Hitoshi Mitake <mitake@dcl.info.waseda.ac.jp>
Cc: Steven Rostedt <rostedt@goodmis.org>
diff --git a/include/trace/events/lock.h b/include/trace/events/lock.h
index 5c1dcfc..17ca287 100644
--- a/include/trace/events/lock.h
+++ b/include/trace/events/lock.h
@@ -78,24 +78,21 @@
);
TRACE_EVENT(lock_acquired,
- TP_PROTO(struct lockdep_map *lock, unsigned long ip, s64 waittime),
+ TP_PROTO(struct lockdep_map *lock, unsigned long ip),
- TP_ARGS(lock, ip, waittime),
+ TP_ARGS(lock, ip),
TP_STRUCT__entry(
__string(name, lock->name)
- __field(s64, wait_nsec)
__field(void *, lockdep_addr)
),
TP_fast_assign(
__assign_str(name, lock->name);
- __entry->wait_nsec = waittime;
__entry->lockdep_addr = lock;
),
- TP_printk("%p %s (%llu ns)", __entry->lockdep_addr,
- __get_str(name),
- __entry->wait_nsec)
+ TP_printk("%p %s", __entry->lockdep_addr,
+ __get_str(name))
);
#endif