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perf session: Share the common trace sample_check routine as perf_session__has_traces

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Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Frédéric Weisbecker <fweisbec@gmail.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
LKML-Reference: <1261957026-15580-5-git-send-email-acme@infradead.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Arnaldo Carvalho de Melo
2009-12-27 21:37:01 -02:00
committed by Ingo Molnar
parent 4a58e61161
commit 27295592c2
6 changed files with 17 additions and 51 deletions
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11
tools/perf/util/session.c
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@ -393,3 +393,14 @@ done:
out_err:
return err;
}
int perf_session__has_traces(struct perf_session *self)
{
if (!(self->sample_type & PERF_SAMPLE_RAW)) {
pr_err("No trace sample to read. Did you call perf record "
"without -R?");
return -1;
}
return 0;
}