From: Yicong Yang <yangyicong@hisilicon.com> driver inclusion category: feature bugzilla: https://gitee.com/openeuler/kernel/issues/IC0GTV ---------------------------------------------------------------------- Event will be scheduled on CPU of hisi_pmu::on_cpu which is selected from the intersection of hisi_pmu::associated_cpus and online CPUs. So the associated_cpus don't need to be maintained with online CPUs. This will save one update operation if one associated CPU is offlined. Signed-off-by: Yicong Yang <yangyicong@hisilicon.com> --- drivers/perf/hisilicon/hisi_uncore_pmu.c | 3 --- 1 file changed, 3 deletions(-) diff --git a/drivers/perf/hisilicon/hisi_uncore_pmu.c b/drivers/perf/hisilicon/hisi_uncore_pmu.c index 1cfd961d2843..475e31ecaaeb 100644 --- a/drivers/perf/hisilicon/hisi_uncore_pmu.c +++ b/drivers/perf/hisilicon/hisi_uncore_pmu.c @@ -507,9 +507,6 @@ int hisi_uncore_pmu_offline_cpu(unsigned int cpu, struct hlist_node *node) cpumask_t pmu_online_cpus; unsigned int target; - if (!cpumask_test_and_clear_cpu(cpu, &hisi_pmu->associated_cpus)) - return 0; - /* Nothing to do if this CPU doesn't own the PMU */ if (hisi_pmu->on_cpu != cpu) return 0; -- 2.33.0