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-rw-r--r--include/linux/perf_event.h16
1 files changed, 15 insertions, 1 deletions
diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h
index 7db0e9cc2682..d5628a7b5eaa 100644
--- a/include/linux/perf_event.h
+++ b/include/linux/perf_event.h
@@ -1250,6 +1250,17 @@ static inline void perf_sample_save_brstack(struct perf_sample_data *data,
data->sample_flags |= PERF_SAMPLE_BRANCH_STACK;
}
+static inline u32 perf_sample_data_size(struct perf_sample_data *data,
+ struct perf_event *event)
+{
+ u32 size = sizeof(struct perf_event_header);
+
+ size += event->header_size + event->id_header_size;
+ size += data->dyn_size;
+
+ return size;
+}
+
/*
* Clear all bitfields in the perf_branch_entry.
* The to and from fields are not cleared because they are
@@ -1271,7 +1282,10 @@ extern void perf_output_sample(struct perf_output_handle *handle,
struct perf_event_header *header,
struct perf_sample_data *data,
struct perf_event *event);
-extern void perf_prepare_sample(struct perf_event_header *header,
+extern void perf_prepare_sample(struct perf_sample_data *data,
+ struct perf_event *event,
+ struct pt_regs *regs);
+extern void perf_prepare_header(struct perf_event_header *header,
struct perf_sample_data *data,
struct perf_event *event,
struct pt_regs *regs);