__blk_bvec_map_sg  483 block/blk-merge.c 				nsegs += __blk_bvec_map_sg(bvec, sglist, sg);
__blk_bvec_map_sg  509 block/blk-merge.c 		nsegs = __blk_bvec_map_sg(rq->special_vec, sglist, &sg);
__blk_bvec_map_sg  511 block/blk-merge.c 		nsegs = __blk_bvec_map_sg(bio_iovec(rq->bio), sglist, &sg);