1 files changed, 6 insertions, 2 deletions

diff --git a/arch/x86/kernel/cpu/perf_event_p4.c b/arch/x86/kernel/cpu/perf_event_p4.c
index 7e578e9cc58b..249015173992 100644
--- a/arch/x86/kernel/cpu/perf_event_p4.c
+++ b/arch/x86/kernel/cpu/perf_event_p4.c
@@ -660,8 +660,12 @@ static int p4_pmu_handle_irq(struct pt_regs *regs)
         for (idx = 0; idx < x86_pmu.num_counters; idx++) {
                 int overflow;
 
-                if (!test_bit(idx, cpuc->active_mask))
+                if (!test_bit(idx, cpuc->active_mask)) {
+                        /* catch in-flight IRQs */
+                        if (__test_and_clear_bit(idx, cpuc->running))
+                                handled++;
                         continue;
+                }
 
                 event = cpuc->events[idx];
                 hwc = &event->hw;
@@ -692,7 +696,7 @@ static int p4_pmu_handle_irq(struct pt_regs *regs)
                 inc_irq_stat(apic_perf_irqs);
         }
 
-        return handled > 0;
+        return handled;
 }
 
 /*