init_request_from_bio  172 block/blk-barrier.c 	init_request_from_bio(rq, q->orig_bar_rq->bio);
init_request_from_bio 1216 block/blk-core.c 	init_request_from_bio(req, bio);
init_request_from_bio   13 block/blk.h    void init_request_from_bio(struct request *req, struct bio *bio);