blk_add_trace_rq  196 include/linux/blktrace_api.h static inline void blk_add_trace_rq(struct request_queue *q, struct request *rq,
blk_add_trace_rq  328 include/linux/blktrace_api.h #define blk_add_trace_rq(q, rq, what)		do { } while (0)