[PATCH 18/27] dm: dm-io.c: use bio_get_base_vec()

[Ming Lei]

Signed-off-by: Ming Lei <tom.leim...@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