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perf tools: Invert the sample_id_all logic

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Instead of requiring that users of perf_record_opts set
.sample_id_all_avail to true, just invert the logic, using
.sample_id_all_missing, that doesn't need to be explicitely initialized
since gcc will zero members ommitted in a struct initialization.

Just like the newly introduced .exclude_{guest,host} feature test.

Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-ab772uzk78cwybihf0vt7kxw@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Arnaldo Carvalho de Melo
2012-02-14 14:18:57 -02:00
parent 0c9781280f
commit 808e122630
6 changed files with 10 additions and 13 deletions
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7
tools/perf/builtin-record.c
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@ -209,7 +209,7 @@ fallback_missing_features:
if (opts->exclude_guest_missing)
attr->exclude_guest = attr->exclude_host = 0;
retry_sample_id:
attr->sample_id_all = opts->sample_id_all_avail ? 1 : 0;
attr->sample_id_all = opts->sample_id_all_missing ? 0 : 1;
try_again:
if (perf_evsel__open(pos, evlist->cpus, evlist->threads,
opts->group, group_fd) < 0) {
@ -228,11 +228,11 @@ try_again:
"guest or host samples.\n");
opts->exclude_guest_missing = true;
goto fallback_missing_features;
} else if (opts->sample_id_all_avail) {
} else if (!opts->sample_id_all_missing) {
/*
* Old kernel, no attr->sample_id_type_all field
*/
opts->sample_id_all_avail = false;
opts->sample_id_all_missing = true;
if (!opts->sample_time && !opts->raw_samples && !time_needed)
attr->sample_type &= ~PERF_SAMPLE_TIME;
@ -660,7 +660,6 @@ static struct perf_record record = {
.user_freq = UINT_MAX,
.user_interval = ULLONG_MAX,
.freq = 1000,
.sample_id_all_avail = true,
},
.write_mode = WRITE_FORCE,
.file_new = true,