perf/core: Fix perf_sched_count derailment

[firefly-linux-kernel-4.4.55.git] / kernel / events / core.c

diff --git a/kernel/events/core.c b/kernel/events/core.c
index 1087bbeb152b101f5f20d61bac075a0f88f28944..faf2067fc8e2d20b94eb91074921cde1e343bd3e 100644 (file)
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -7979,6 +7979,9 @@ perf_event_alloc(struct perf_event_attr *attr, int cpu,
                }
        }
 
+       /* symmetric to unaccount_event() in _free_event() */
+       account_event(event);
+
        return event;
 
 err_per_task:
@@ -8342,8 +8345,6 @@ SYSCALL_DEFINE5(perf_event_open,
                }
        }
 
-       account_event(event);
-
        /*
         * Special case software events and allow them to be part of
         * any hardware group.
@@ -8626,8 +8627,6 @@ perf_event_create_kernel_counter(struct perf_event_attr *attr, int cpu,
        /* Mark owner so we could distinguish it from user events. */
        event->owner = EVENT_OWNER_KERNEL;
 
-       account_event(event);
-
        ctx = find_get_context(event->pmu, task, event);
        if (IS_ERR(ctx)) {
                err = PTR_ERR(ctx);