diff options
-rw-r--r-- | arch/x86/kernel/cpu/perf_event_intel.c | 9 | ||||
-rw-r--r-- | arch/x86/kernel/cpu/perf_event_p4.c | 2 |
2 files changed, 8 insertions, 3 deletions
diff --git a/arch/x86/kernel/cpu/perf_event_intel.c b/arch/x86/kernel/cpu/perf_event_intel.c index 1297bf15cb88..ee05c90012d2 100644 --- a/arch/x86/kernel/cpu/perf_event_intel.c +++ b/arch/x86/kernel/cpu/perf_event_intel.c | |||
@@ -713,6 +713,7 @@ static int intel_pmu_handle_irq(struct pt_regs *regs) | |||
713 | struct cpu_hw_events *cpuc; | 713 | struct cpu_hw_events *cpuc; |
714 | int bit, loops; | 714 | int bit, loops; |
715 | u64 status; | 715 | u64 status; |
716 | int handled = 0; | ||
716 | 717 | ||
717 | perf_sample_data_init(&data, 0); | 718 | perf_sample_data_init(&data, 0); |
718 | 719 | ||
@@ -743,12 +744,16 @@ again: | |||
743 | /* | 744 | /* |
744 | * PEBS overflow sets bit 62 in the global status register | 745 | * PEBS overflow sets bit 62 in the global status register |
745 | */ | 746 | */ |
746 | if (__test_and_clear_bit(62, (unsigned long *)&status)) | 747 | if (__test_and_clear_bit(62, (unsigned long *)&status)) { |
748 | handled++; | ||
747 | x86_pmu.drain_pebs(regs); | 749 | x86_pmu.drain_pebs(regs); |
750 | } | ||
748 | 751 | ||
749 | for_each_set_bit(bit, (unsigned long *)&status, X86_PMC_IDX_MAX) { | 752 | for_each_set_bit(bit, (unsigned long *)&status, X86_PMC_IDX_MAX) { |
750 | struct perf_event *event = cpuc->events[bit]; | 753 | struct perf_event *event = cpuc->events[bit]; |
751 | 754 | ||
755 | handled++; | ||
756 | |||
752 | if (!test_bit(bit, cpuc->active_mask)) | 757 | if (!test_bit(bit, cpuc->active_mask)) |
753 | continue; | 758 | continue; |
754 | 759 | ||
@@ -770,7 +775,7 @@ again: | |||
770 | 775 | ||
771 | done: | 776 | done: |
772 | intel_pmu_enable_all(0); | 777 | intel_pmu_enable_all(0); |
773 | return 1; | 778 | return handled; |
774 | } | 779 | } |
775 | 780 | ||
776 | static struct event_constraint * | 781 | static struct event_constraint * |
diff --git a/arch/x86/kernel/cpu/perf_event_p4.c b/arch/x86/kernel/cpu/perf_event_p4.c index 7e578e9cc58b..b560db3305be 100644 --- a/arch/x86/kernel/cpu/perf_event_p4.c +++ b/arch/x86/kernel/cpu/perf_event_p4.c | |||
@@ -692,7 +692,7 @@ static int p4_pmu_handle_irq(struct pt_regs *regs) | |||
692 | inc_irq_stat(apic_perf_irqs); | 692 | inc_irq_stat(apic_perf_irqs); |
693 | } | 693 | } |
694 | 694 | ||
695 | return handled > 0; | 695 | return handled; |
696 | } | 696 | } |
697 | 697 | ||
698 | /* | 698 | /* |