Commit 883a2a31 authored by Frederic Weisbecker's avatar Frederic Weisbecker

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: default avatarFrederic 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>
parent 90c0e5fc
......@@ -78,24 +78,21 @@ TRACE_EVENT(lock_contended,
);
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
......
......@@ -3380,7 +3380,7 @@ __lock_acquired(struct lockdep_map *lock, unsigned long ip)
hlock->holdtime_stamp = now;
}
trace_lock_acquired(lock, ip, waittime);
trace_lock_acquired(lock, ip);
stats = get_lock_stats(hlock_class(hlock));
if (waittime) {
......
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