get_request       828 block/blk-core.c 	rq = get_request(q, rw_flags, bio, GFP_NOIO);
get_request       855 block/blk-core.c 		rq = get_request(q, rw_flags, bio, GFP_NOIO);
get_request       871 block/blk-core.c 		rq = get_request(q, rw, NULL, gfp_mask);