Re: [PATCHv3 2/7] blk-mq-dma: provide the bio_vec list being iterated
From: Keith Busch <kbusch@kernel.org>
Date: 2025-07-29 20:55:14
Also in:
linux-nvme
On Tue, Jul 29, 2025 at 07:34:37AM -0700, Keith Busch wrote:
quoted hunk ↗ jump to hunk
@@ -244,8 +244,10 @@ int __blk_rq_map_sg(struct request *rq, struct scatterlist *sglist, int nsegs = 0; /* the internal flush request may not have bio attached */ - if (bio) + if (bio) { iter.iter = bio->bi_iter; + iter.bvec = bio->bi_io_vec;
Oops, this should have been: if (rq->rq_flags & RQF_SPECIAL_PAYLOAD) iter.bvec = &rq->special_vec; else iter.bvec = bio->bi_io_vec; Hopefully over time everything coverts to the dma iterator and this legacy sg mapping can fade away.
+ }