diff options
| author | Ian Rogers <irogers@google.com> | 2022-05-02 21:17:53 -0700 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2022-05-05 14:38:01 -0300 |
| commit | 33cd6928039c6bf18cf0baec936924d908e6c89b (patch) | |
| tree | c07421cd65df8f4ddf804dfcb7b920c7144dc86d /tools/lib/perf | |
| parent | 0255571a16059c8e863a65a4b1611db93bb9b3ae (diff) | |
| download | linux-33cd6928039c6bf18cf0baec936924d908e6c89b.tar.bz2 | |
perf evlist: Clear all_cpus before propagating
all_cpus is merged into during propagation. Initially all_cpus is set
from PMU sysfs. perf_evlist__set_maps() will recompute it and change
evsel->cpus to user_requested_cpus if they are given.
If all_cpus isn't cleared then the union of the user_requested_cpus and
PMU sysfs values is set to all_cpus, whereas just user_requested_cpus is
necessary.
To avoid this make all_cpus empty prior to propagation.
Reviewed-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Alexander Antonov <alexander.antonov@linux.intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Alexey Bayduraev <alexey.v.bayduraev@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Andrii Nakryiko <andrii@kernel.org>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: German Gomez <german.gomez@arm.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: John Fastabend <john.fastabend@gmail.com>
Cc: John Garry <john.garry@huawei.com>
Cc: KP Singh <kpsingh@kernel.org>
Cc: Kajol Jain <kjain@linux.ibm.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Martin KaFai Lau <kafai@fb.com>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Riccardo Mancini <rickyman7@gmail.com>
Cc: Song Liu <songliubraving@fb.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: Suzuki Poulouse <suzuki.poulose@arm.com>
Cc: Will Deacon <will@kernel.org>
Cc: Yonghong Song <yhs@fb.com>
Link: http://lore.kernel.org/lkml/20220503041757.2365696-3-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/lib/perf')
| -rw-r--r-- | tools/lib/perf/evlist.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/tools/lib/perf/evlist.c b/tools/lib/perf/evlist.c index a09315538a30..974b4585f93e 100644 --- a/tools/lib/perf/evlist.c +++ b/tools/lib/perf/evlist.c @@ -59,6 +59,10 @@ static void perf_evlist__propagate_maps(struct perf_evlist *evlist) { struct perf_evsel *evsel; + /* Recomputing all_cpus, so start with a blank slate. */ + perf_cpu_map__put(evlist->all_cpus); + evlist->all_cpus = NULL; + perf_evlist__for_each_evsel(evlist, evsel) __perf_evlist__propagate_maps(evlist, evsel); } |