247 void *trace_event_buffer_reserve(struct trace_event_buffer *fbuffer,  in trace_event_buffer_reserve()  argument
257 	local_save_flags(fbuffer->flags);  in trace_event_buffer_reserve()
258 	fbuffer->pc = preempt_count();  in trace_event_buffer_reserve()
266 		fbuffer->pc--;  in trace_event_buffer_reserve()
267 	fbuffer->trace_file = trace_file;  in trace_event_buffer_reserve()
269 	fbuffer->event =  in trace_event_buffer_reserve()
270 		trace_event_buffer_lock_reserve(&fbuffer->buffer, trace_file,  in trace_event_buffer_reserve()
272 						fbuffer->flags, fbuffer->pc);  in trace_event_buffer_reserve()
273 	if (!fbuffer->event)  in trace_event_buffer_reserve()
276 	fbuffer->entry = ring_buffer_event_data(fbuffer->event);  in trace_event_buffer_reserve()
277 	return fbuffer->entry;  in trace_event_buffer_reserve()