[PATCH 06/12] dm: crypt: use bio_add_page()

From: Ming Lei
Date: Fri Nov 11 2016 - 07:07:03 EST


We have the standard interface to add page to bio, so don't
do that in hacking way.

Reviewed-by: Christoph Hellwig <hch@xxxxxx>
Signed-off-by: Ming Lei <tom.leiming@xxxxxxxxx>
---
drivers/md/dm-crypt.c | 8 +-------
1 file changed, 1 insertion(+), 7 deletions(-)

diff --git a/drivers/md/dm-crypt.c b/drivers/md/dm-crypt.c
index 68a9eb4f3f36..e4f86bead9d3 100644
--- a/drivers/md/dm-crypt.c
+++ b/drivers/md/dm-crypt.c
@@ -994,7 +994,6 @@ static struct bio *crypt_alloc_buffer(struct dm_crypt_io *io, unsigned size)
gfp_t gfp_mask = GFP_NOWAIT | __GFP_HIGHMEM;
unsigned i, len, remaining_size;
struct page *page;
- struct bio_vec *bvec;

retry:
if (unlikely(gfp_mask & __GFP_DIRECT_RECLAIM))
@@ -1019,12 +1018,7 @@ static struct bio *crypt_alloc_buffer(struct dm_crypt_io *io, unsigned size)

len = (remaining_size > PAGE_SIZE) ? PAGE_SIZE : remaining_size;

- bvec = &clone->bi_io_vec[clone->bi_vcnt++];
- bvec->bv_page = page;
- bvec->bv_len = len;
- bvec->bv_offset = 0;
-
- clone->bi_iter.bi_size += len;
+ bio_add_page(clone, page, len, 0);

remaining_size -= len;
}
--
2.7.4