| Date | Tue, 4 Jan 2022 22:13:25 -0800 | Subject | [PATCH v4 22/48] perf cpumap: Trim the cpu_aggr_map | From | Ian Rogers <> |
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cpu_aggr_map__new removes duplicates, when this happens shrink the array.
Reviewed-by: James Clark <james.clark@arm.com> Signed-off-by: Ian Rogers <irogers@google.com> --- tools/perf/util/cpumap.c | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-)
diff --git a/tools/perf/util/cpumap.c b/tools/perf/util/cpumap.c index f1d76a8e92e8..2779474f39db 100644 --- a/tools/perf/util/cpumap.c +++ b/tools/perf/util/cpumap.c @@ -185,7 +185,15 @@ struct cpu_aggr_map *cpu_aggr_map__new(const struct perf_cpu_map *cpus, c->nr++; } } - + /* Trim. */ + if (c->nr != cpus->nr) { + struct cpu_aggr_map *trimmed_c = + realloc(c, + sizeof(struct cpu_aggr_map) + sizeof(struct aggr_cpu_id) * c->nr); + + if (trimmed_c) + c = trimmed_c; + } /* ensure we process id in increasing order */ qsort(c->map, c->nr, sizeof(struct aggr_cpu_id), aggr_cpu_id__cmp); -- 2.34.1.448.ga2b2bfdf31-goog
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