[RFC PATCH 06/28] block: Support dma-direct bios in bio_advance_iter()
From: Logan Gunthorpe <logang@deltatee.com>
Date: 2019-06-20 16:14:09
Also in:
linux-nvme, linux-pci, linux-rdma, lkml
Subsystem:
block layer, the rest · Maintainers:
Jens Axboe, Linus Torvalds
Dma-direct bio iterators need to be advanced using a similar dvec_iter_advance helper. Signed-off-by: Logan Gunthorpe <logang@deltatee.com> --- include/linux/bio.h | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/include/linux/bio.h b/include/linux/bio.h
index 8180309123d7..e212e5958a75 100644
--- a/include/linux/bio.h
+++ b/include/linux/bio.h@@ -134,6 +134,8 @@ static inline void bio_advance_iter(struct bio *bio, struct bvec_iter *iter, if (bio_no_advance_iter(bio)) iter->bi_size -= bytes; + else if (op_is_dma_direct(bio->bi_opf)) + dvec_iter_advance(bio->bi_dma_vec, iter, bytes); else bvec_iter_advance(bio->bi_io_vec, iter, bytes); /* TODO: It is reasonable to complete bio with error here. */
--
2.20.1