diff options
| author | Ingo Molnar <mingo@kernel.org> | 2019-04-16 12:02:43 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2019-04-16 12:02:43 +0200 |
| commit | 496156e3647f44e2aab3e64f86b63294afca458a (patch) | |
| tree | de4c35460ef0249623d45627ad40abad07b8e7cf /arch/x86/events/core.c | |
| parent | cabf5ebbabcd4ad59b6eb216876c4c2e56fd3386 (diff) | |
| parent | 618d919cae2fcaadc752f27ddac8b939da8b441a (diff) | |
Merge branch 'linus' into perf/core, to pick up fixes
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/x86/events/core.c')
| -rw-r--r-- | arch/x86/events/core.c | 13 |
1 files changed, 3 insertions, 10 deletions
diff --git a/arch/x86/events/core.c b/arch/x86/events/core.c index 24dab9ad4fd6..87b50f4be201 100644 --- a/arch/x86/events/core.c +++ b/arch/x86/events/core.c @@ -1369,8 +1369,9 @@ void x86_pmu_stop(struct perf_event *event, int flags) struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events); struct hw_perf_event *hwc = &event->hw; - if (__test_and_clear_bit(hwc->idx, cpuc->active_mask)) { + if (test_bit(hwc->idx, cpuc->active_mask)) { x86_pmu.disable(event); + __clear_bit(hwc->idx, cpuc->active_mask); cpuc->events[hwc->idx] = NULL; WARN_ON_ONCE(hwc->state & PERF_HES_STOPPED); hwc->state |= PERF_HES_STOPPED; @@ -1463,16 +1464,8 @@ int x86_pmu_handle_irq(struct pt_regs *regs) apic_write(APIC_LVTPC, APIC_DM_NMI); for (idx = 0; idx < x86_pmu.num_counters; idx++) { - if (!test_bit(idx, cpuc->active_mask)) { - /* - * Though we deactivated the counter some cpus - * might still deliver spurious interrupts still - * in flight. Catch them: - */ - if (__test_and_clear_bit(idx, cpuc->running)) - handled++; + if (!test_bit(idx, cpuc->active_mask)) continue; - } event = cpuc->events[idx]; |