[PATCH 18/27] dm: dm-io.c: use bio_get_base_vec()
From: Ming Lei <tom.leiming@gmail.com>
Date: 2016-04-05 12:08:41
Also in:
dm-devel, lkml
Subsystem:
device-mapper (lvm), the rest · Maintainers:
Alasdair Kergon, Mike Snitzer, Mikulas Patocka, Benjamin Marzinski, Linus Torvalds
Signed-off-by: Ming Lei <tom.leiming@gmail.com> --- drivers/md/dm-io.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/drivers/md/dm-io.c b/drivers/md/dm-io.c
index 06d426e..6b0e466 100644
--- a/drivers/md/dm-io.c
+++ b/drivers/md/dm-io.c@@ -221,7 +221,12 @@ static void bio_dp_init(struct dpages *dp, struct bio *bio) { dp->get_page = bio_get_page; dp->next_page = bio_next_page; - dp->context_ptr = __bvec_iter_bvec(bio->bi_io_vec, bio->bi_iter); + + /* + * need to fix both bio_get_page() and bio_next_page() + * before multipage bvecs + */ + dp->context_ptr = bio_get_base_vec(bio); dp->context_u = bio->bi_iter.bi_bvec_done; }
--
1.9.1