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 <hch@xxxxxx>
---
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
--
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