rq_wait_pct_p    1277 block/blk-iocost.c static void ioc_lat_stat(struct ioc *ioc, u32 *missed_ppm_ar, u32 *rq_wait_pct_p)
rq_wait_pct_p    1312 block/blk-iocost.c 	*rq_wait_pct_p = div64_u64(rq_wait_ns * 100,