4.19-stable review patch. If anyone has any objections, please let me know.
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[ Upstream commit 8e88c29b351ed4e09dd63f825f1c8260b0cb0ab3 ]
Andi reported following malfunction:
# perf record -e '{ref-cycles,cycles}:S' -a sleep 1 # perf script non matching sample_id_all
That's because we disable sample_id_all bit for non-sampling group members. We can't do that, because it needs to be the same over the whole event list. This patch keeps it untouched again.
Reported-by: Andi Kleen andi@firstfloor.org Tested-by: Andi Kleen andi@firstfloor.org Signed-off-by: Jiri Olsa jolsa@kernel.org Cc: Alexander Shishkin alexander.shishkin@linux.intel.com Cc: Namhyung Kim namhyung@kernel.org Cc: Peter Zijlstra peterz@infradead.org Link: http://lkml.kernel.org/r/20180923150420.27327-1-jolsa@kernel.org Fixes: e9add8bac6c6 ("perf evsel: Disable write_backward for leader sampling group events") Signed-off-by: Arnaldo Carvalho de Melo acme@redhat.com Signed-off-by: Sasha Levin sashal@kernel.org --- tools/perf/tests/attr/test-record-group-sampling | 1 - tools/perf/util/evsel.c | 1 - 2 files changed, 2 deletions(-)
diff --git a/tools/perf/tests/attr/test-record-group-sampling b/tools/perf/tests/attr/test-record-group-sampling index 8a33ca4f9e1f..f0729c454f16 100644 --- a/tools/perf/tests/attr/test-record-group-sampling +++ b/tools/perf/tests/attr/test-record-group-sampling @@ -37,4 +37,3 @@ sample_freq=0 sample_period=0 freq=0 write_backward=0 -sample_id_all=0 diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c index e596ae358c4d..03a72310315f 100644 --- a/tools/perf/util/evsel.c +++ b/tools/perf/util/evsel.c @@ -952,7 +952,6 @@ void perf_evsel__config(struct perf_evsel *evsel, struct record_opts *opts, attr->sample_freq = 0; attr->sample_period = 0; attr->write_backward = 0; - attr->sample_id_all = 0; }
if (opts->no_samples)