blk_add_trace_rq_requeue 1122 kernel/trace/blktrace.c 	ret = register_trace_block_rq_requeue(blk_add_trace_rq_requeue, NULL);
blk_add_trace_rq_requeue 1167 kernel/trace/blktrace.c 	unregister_trace_block_rq_requeue(blk_add_trace_rq_requeue, NULL);