From a5bde5d8fde8a8cb28e59a672d5ddc5b9c1e7656 Mon Sep 17 00:00:00 2001 From: Breno Leitao Date: Wed, 5 Aug 2026 07:52:36 -0700 Subject: workqueue: skip the node_nr_active update for non-unbound workqueues apply_wqattrs_commit() updates node_nr_active->max unconditionally. wq->node_nr_active[] is only allocated for unbound workqueues, so guard the call before per-cpu workqueues start using this path. No functional change: only unbound workqueues reach apply_wqattrs_*() today. Signed-off-by: Breno Leitao Signed-off-by: Tejun Heo --- tools/perf/util/counts.c | 71 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 71 insertions(+) create mode 100644 tools/perf/util/counts.c (limited to 'tools/perf/util/counts.c') diff --git a/tools/perf/util/counts.c b/tools/perf/util/counts.c new file mode 100644 index 000000000..11cd85b27 --- /dev/null +++ b/tools/perf/util/counts.c @@ -0,0 +1,71 @@ +// SPDX-License-Identifier: GPL-2.0 +#include +#include +#include +#include "evsel.h" +#include "counts.h" +#include +#include + +struct perf_counts *perf_counts__new(int ncpus, int nthreads) +{ + struct perf_counts *counts = zalloc(sizeof(*counts)); + + if (counts) { + struct xyarray *values; + + values = xyarray__new(ncpus, nthreads, sizeof(struct perf_counts_values)); + if (!values) { + free(counts); + return NULL; + } + + counts->values = values; + + values = xyarray__new(ncpus, nthreads, sizeof(bool)); + if (!values) { + xyarray__delete(counts->values); + free(counts); + return NULL; + } + + counts->loaded = values; + } + + return counts; +} + +void perf_counts__delete(struct perf_counts *counts) +{ + if (counts) { + xyarray__delete(counts->loaded); + xyarray__delete(counts->values); + free(counts); + } +} + +void perf_counts__reset(struct perf_counts *counts) +{ + xyarray__reset(counts->loaded); + xyarray__reset(counts->values); +} + +void evsel__reset_counts(struct evsel *evsel) +{ + perf_counts__reset(evsel->counts); +} + +int evsel__alloc_counts(struct evsel *evsel) +{ + struct perf_cpu_map *cpus = evsel__cpus(evsel); + int nthreads = perf_thread_map__nr(evsel->core.threads); + + evsel->counts = perf_counts__new(perf_cpu_map__nr(cpus), nthreads); + return evsel->counts != NULL ? 0 : -ENOMEM; +} + +void evsel__free_counts(struct evsel *evsel) +{ + perf_counts__delete(evsel->counts); + evsel->counts = NULL; +} -- cgit v1.3.1