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perf session: Split out sample preprocessing 

Simplify the code a bit.

Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ian Munsie <imunsie@au1.ibm.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Peter Zijlstra <peterz@infradead.org>
LKML-Reference: <20101207124551.014649793@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Thomas Gleixner 2010-12-07 12:48:58 +00:00 committed by Arnaldo Carvalho de Melo
parent 532e7269c0
commit 3dfc2c0aee
1 changed files with 25 additions and 15 deletions
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40
tools/perf/util/session.c
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@ -732,6 +732,22 @@ static int perf_session_deliver_event(struct perf_session *session,
}
}
static int perf_session__preprocess_sample(struct perf_session *session,
event_t *event, struct sample_data *sample)
{
if (event->header.type != PERF_RECORD_SAMPLE ||
!(session->sample_type & PERF_SAMPLE_CALLCHAIN))
return 0;
if (!ip_callchain__valid(sample->callchain, event)) {
pr_debug("call-chain problem with event, skipping it.\n");
++session->hists.stats.nr_invalid_chains;
session->hists.stats.total_invalid_chains += sample->period;
return -EINVAL;
}
return 0;
}
static int perf_session__process_event(struct perf_session *session,
event_t *event,
struct perf_event_ops *ops,
@ -750,24 +766,9 @@ static int perf_session__process_event(struct perf_session *session,
if (event->header.type >= PERF_RECORD_USER_TYPE_START)
dump_event(session, event, file_offset, NULL);
else
event__parse_sample(event, session, &sample);
/* These events are processed right away */
switch (event->header.type) {
case PERF_RECORD_SAMPLE:
if (session->sample_type & PERF_SAMPLE_CALLCHAIN) {
if (!ip_callchain__valid(sample.callchain, event)) {
pr_debug("call-chain problem with event, "
"skipping it.\n");
++session->hists.stats.nr_invalid_chains;
session->hists.stats.total_invalid_chains +=
sample.period;
return 0;
}
}
break;
case PERF_RECORD_HEADER_ATTR:
return ops->attr(event, session);
case PERF_RECORD_HEADER_EVENT_TYPE:
@ -784,6 +785,15 @@ static int perf_session__process_event(struct perf_session *session,
break;
}
/*
* For all kernel events we get the sample data
*/
event__parse_sample(event, session, &sample);
/* Preprocess sample records - precheck callchains */
if (perf_session__preprocess_sample(session, event, &sample))
return 0;
if (ops->ordered_samples) {
ret = perf_session_queue_event(session, event, &sample,
file_offset);