rq_for_each_bvec  375 block/blk-merge.c 	rq_for_each_bvec(bv, rq, iter)
rq_for_each_bvec  527 drivers/block/loop.c 	rq_for_each_bvec(tmp, rq, rq_iter)
rq_for_each_bvec  544 drivers/block/loop.c 		rq_for_each_bvec(tmp, rq, rq_iter) {