1 files changed, 10 insertions, 4 deletions

diff --git a/kernel/trace/bpf_trace.c b/kernel/trace/bpf_trace.c
index 45dd798bcd37..326a75e884db 100644
--- a/kernel/trace/bpf_trace.c
+++ b/kernel/trace/bpf_trace.c
@@ -191,14 +191,17 @@ static u64 bpf_perf_event_read(u64 r1, u64 index, u64 r3, u64 r4, u64 r5)
         struct bpf_map *map = (struct bpf_map *) (unsigned long) r1;
         struct bpf_array *array = container_of(map, struct bpf_array, map);
         struct perf_event *event;
+        struct file *file;
 
         if (unlikely(index >= array->map.max_entries))
                 return -E2BIG;
 
-        event = (struct perf_event *)array->ptrs[index];
-        if (!event)
+        file = (struct file *)array->ptrs[index];
+        if (unlikely(!file))
                 return -ENOENT;
 
+        event = file->private_data;
+
         /* make sure event is local and doesn't have pmu::count */
         if (event->oncpu != smp_processor_id() ||
             event->pmu->count)
@@ -228,6 +231,7 @@ static u64 bpf_perf_event_output(u64 r1, u64 r2, u64 index, u64 r4, u64 size)
         void *data = (void *) (long) r4;
         struct perf_sample_data sample_data;
         struct perf_event *event;
+        struct file *file;
         struct perf_raw_record raw = {
                 .size = size,
                 .data = data,
@@ -236,10 +240,12 @@ static u64 bpf_perf_event_output(u64 r1, u64 r2, u64 index, u64 r4, u64 size)
         if (unlikely(index >= array->map.max_entries))
                 return -E2BIG;
 
-        event = (struct perf_event *)array->ptrs[index];
-        if (unlikely(!event))
+        file = (struct file *)array->ptrs[index];
+        if (unlikely(!file))
                 return -ENOENT;
 
+        event = file->private_data;
+
         if (unlikely(event->attr.type != PERF_TYPE_SOFTWARE ||
                      event->attr.config != PERF_COUNT_SW_BPF_OUTPUT))
                 return -EINVAL;