int blk_rq_unmap_user(struct request *rq, struct bio *bio, unsigned int ulen) 
int blk_rq_unmap_user(struct bio *bio, unsigned int ulen) 
int blk_rq_unmap_user(struct request *rq, struct bio *bio, unsigned int ulen){	int ret = 0;	if (bio) {		if (bio_flagged(bio, BIO_USER_MAPPED))			bio_unmap_user(bio);		else			ret = bio_uncopy_user(bio);	}	blk_put_request(rq);	return ret;}
10457	/local/tlutelli/issta_data/temp/c/2005_temp/2005/10457/dd1cab95f356f1395278633565f198463cf6bd24/ll_rw_blk.c/clean/drivers/block/ll_rw_blk.c