diff --git a/kernel/events/core.c b/kernel/events/core.c index c7b3e34811ec..ae22d93701db 100644 --- a/kernel/events/core.c +++ b/kernel/events/core.c @@ -3940,6 +3940,12 @@ int perf_event_read_local(struct perf_event *event, u64 *value, goto out; } + /* If this is a pinned event it must be running on this CPU */ + if (event->attr.pinned && event->oncpu != smp_processor_id()) { + ret = -EBUSY; + goto out; + } + /* * If the event is currently on this CPU, its either a per-task event, * or local to this CPU. Furthermore it means its ACTIVE (otherwise