Merge tag 'v3.10.74' into update

[GitHub/mt8127/android_kernel_alcatel_ttab.git] / kernel / events / core.c

diff --git a/kernel/events/core.c b/kernel/events/core.c
index 191dbad301cd50d011034ef3ebc049e0a97e84e7..947a9bbcc1c8f4c607eb0796b3711e262b0a35ee 100644 (file)
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -4014,6 +4014,13 @@ static void perf_pending_event(struct irq_work *entry)
 {
        struct perf_event *event = container_of(entry,
                        struct perf_event, pending);
+       int rctx;
+
+       rctx = perf_swevent_get_recursion_context();
+       /*
+        * If we 'fail' here, that's OK, it means recursion is already disabled
+        * and we won't recurse 'further'.
+        */
 
        if (event->pending_disable) {
                event->pending_disable = 0;
@@ -4024,6 +4031,9 @@ static void perf_pending_event(struct irq_work *entry)
                event->pending_wakeup = 0;
                perf_event_wakeup(event);
        }
+
+       if (rctx >= 0)
+               perf_swevent_put_recursion_context(rctx);
 }
 
 /*