bch_bio_alloc_pages() is always called on one new bio, so it is safe
to access the bvec table directly. Given it is the only kind of this
case, open code the bvec table access since bio_for_each_segment_all()
will be changed to support for iterating over multipage bvec.

Cc: Dave Chinner <[email protected]>
Cc: Kent Overstreet <[email protected]>
Acked-by: Coly Li <[email protected]>
Cc: Mike Snitzer <[email protected]>
Cc: [email protected]
Cc: Alexander Viro <[email protected]>
Cc: [email protected]
Cc: Shaohua Li <[email protected]>
Cc: [email protected]
Cc: [email protected]
Cc: David Sterba <[email protected]>
Cc: [email protected]
Cc: Darrick J. Wong <[email protected]>
Cc: [email protected]
Cc: Gao Xiang <[email protected]>
Cc: Christoph Hellwig <[email protected]>
Cc: Theodore Ts'o <[email protected]>
Cc: [email protected]
Cc: Coly Li <[email protected]>
Cc: [email protected]
Cc: Boaz Harrosh <[email protected]>
Cc: Bob Peterson <[email protected]>
Cc: [email protected]
Signed-off-by: Ming Lei <[email protected]>
---
 drivers/md/bcache/util.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/md/bcache/util.c b/drivers/md/bcache/util.c
index 20eddeac1531..8517aebcda2d 100644
--- a/drivers/md/bcache/util.c
+++ b/drivers/md/bcache/util.c
@@ -270,7 +270,7 @@ int bch_bio_alloc_pages(struct bio *bio, gfp_t gfp_mask)
        int i;
        struct bio_vec *bv;
 
-       bio_for_each_segment_all(bv, bio, i) {
+       for (i = 0, bv = bio->bi_io_vec; i < bio->bi_vcnt; bv++) {
                bv->bv_page = alloc_page(gfp_mask);
                if (!bv->bv_page) {
                        while (--bv >= bio->bi_io_vec)
-- 
2.9.5

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