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Date: Wed, 15 Apr 2015 03:56:16 -0400 From: Kan Liang <kan.liang@...el.com> To: acme@...nel.org, a.p.zijlstra@...llo.nl Cc: eranian@...gle.com, andi@...stfloor.org, linux-kernel@...r.kernel.org, Kan Liang <kan.liang@...el.com> Subject: [PATCH V2 6/6] perf/x86/intel/uncore: do not implicitly set uncore event cpu From: Kan Liang <kan.liang@...el.com> There is cpumask exposed to the uncore pmu sysfs directory. User should set the cpu according to the cpumask. Kernel should not implicitly change the event->cpu. Signed-off-by: Kan Liang <kan.liang@...el.com> --- arch/x86/kernel/cpu/perf_event_intel_uncore.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/arch/x86/kernel/cpu/perf_event_intel_uncore.c b/arch/x86/kernel/cpu/perf_event_intel_uncore.c index c635b8b..cd80731 100644 --- a/arch/x86/kernel/cpu/perf_event_intel_uncore.c +++ b/arch/x86/kernel/cpu/perf_event_intel_uncore.c @@ -621,9 +621,8 @@ static int uncore_pmu_event_init(struct perf_event *event) if (event->cpu < 0) return -EINVAL; box = uncore_pmu_to_box(pmu, event->cpu); - if (!box || box->cpu < 0) + if (!box || box->cpu < 0 || (box->cpu != event->cpu)) return -EINVAL; - event->cpu = box->cpu; event->hw.idx = -1; event->hw.last_tag = ~0ULL; -- 1.8.3.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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