this_rq_wait_ns  1286 block/blk-iocost.c 		u64 this_rq_wait_ns;
this_rq_wait_ns  1298 block/blk-iocost.c 		this_rq_wait_ns = READ_ONCE(stat->rq_wait_ns);
this_rq_wait_ns  1299 block/blk-iocost.c 		rq_wait_ns += this_rq_wait_ns - stat->last_rq_wait_ns;
this_rq_wait_ns  1300 block/blk-iocost.c 		stat->last_rq_wait_ns = this_rq_wait_ns;