- alignment = queue_dma_alignment(q) | q->dma_pad_mask;
- if (!(uaddr & alignment) && !(len & alignment))
- bio = bio_map_user(q, NULL, uaddr, len, reading);
+ if (blk_rq_aligned(q, ubuf, len) && !map_data)
+ bio = bio_map_user(q, NULL, uaddr, len, reading, gfp_mask);