[PATCH 7/8] block: remove bio_no_advance_iter

[Christoph Hellwig]

Now that we don't have to support the odd Write Same special case
we can simply increment the iter if the bio has data, else just
manipulate bi_size directly.

Signed-off-by: Christoph Hellwig <h...@lst.de>
---
 include/linux/bio.h | 13 +++----------
 1 file changed, 3 insertions(+), 10 deletions(-)

diff --git a/include/linux/bio.h b/include/linux/bio.h
index 96a20afb8575..7a24a1a24967 100644
--- a/include/linux/bio.h
+++ b/include/linux/bio.h
@@ -83,13 +83,6 @@ static inline bool bio_has_data(struct bio *bio)
        return false;
 }
 
-static inline bool bio_no_advance_iter(struct bio *bio)
-{
-       return bio_op(bio) == REQ_OP_DISCARD ||
-              bio_op(bio) == REQ_OP_SECURE_ERASE ||
-              bio_op(bio) == REQ_OP_WRITE_ZEROES;
-}
-
 static inline bool bio_mergeable(struct bio *bio)
 {
        if (bio->bi_opf & REQ_NOMERGE_FLAGS)
@@ -165,10 +158,10 @@ static inline void bio_advance_iter(struct bio *bio, 
struct bvec_iter *iter,
 {
        iter->bi_sector += bytes >> 9;
 
-       if (bio_no_advance_iter(bio))
-               iter->bi_size -= bytes;
-       else
+       if (bio_has_data(bio))
                bvec_iter_advance(bio->bi_io_vec, iter, bytes);
+       else
+               iter->bi_size -= bytes;
 }
 
 #define __bio_for_each_segment(bvl, bio, iter, start)                  \
-- 
2.11.0