652 void *trace_event_buffer_reserve(struct trace_event_buffer *fbuffer,  in trace_event_buffer_reserve()  argument
668 	fbuffer->trace_ctx = tracing_gen_ctx_dec();  in trace_event_buffer_reserve()
669 	fbuffer->trace_file = trace_file;  in trace_event_buffer_reserve()
671 	fbuffer->event =  in trace_event_buffer_reserve()
672 		trace_event_buffer_lock_reserve(&fbuffer->buffer, trace_file,  in trace_event_buffer_reserve()
674 						fbuffer->trace_ctx);  in trace_event_buffer_reserve()
675 	if (!fbuffer->event)  in trace_event_buffer_reserve()
678 	fbuffer->regs = NULL;  in trace_event_buffer_reserve()
679 	fbuffer->entry = ring_buffer_event_data(fbuffer->event);  in trace_event_buffer_reserve()
680 	return fbuffer->entry;  in trace_event_buffer_reserve()