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perf record: Delay setting the header writing atexit call

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While testing the --filter option I noticed that we were writing lots of
unneeded stuff to the perf.data header when the filter ioctl fails, so
move the atexit(atexit_header) call to after we create the counters
successfully.

Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Tom Zanussi <tzanussi@gmail.com>
LKML-Reference: <new-submission>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Arnaldo Carvalho de Melo 2011-02-17 12:18:42 -02:00
parent fec9cbd15b
commit 712a4b6049
1 changed files with 5 additions and 5 deletions
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10
tools/perf/builtin-record.c
View file

@ -538,11 +538,6 @@ static int __cmd_record(int argc, const char **argv)
if (have_tracepoints(&evsel_list->entries))
perf_header__set_feat(&session->header, HEADER_TRACE_INFO);
/*
* perf_session__delete(session) will be called at atexit_header()
*/
atexit(atexit_header);
if (forks) {
child_pid = fork();
if (child_pid < 0) {
@ -601,6 +596,11 @@ static int __cmd_record(int argc, const char **argv)
perf_session__set_sample_type(session, sample_type);
/*
* perf_session__delete(session) will be called at atexit_header()
*/
atexit(atexit_header);
if (pipe_output) {
err = perf_header__write_pipe(output);
if (err < 0)