[PATCH 4/8] block: fold bio_cur_bytes into blk_rq_cur_bytes

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Fold bio_cur_bytes into the only caller.

Signed-off-by: Christoph Hellwig <hch@xxxxxx>
---
 include/linux/bio.h    | 8 --------
 include/linux/blk-mq.h | 6 +++++-
 2 files changed, 5 insertions(+), 9 deletions(-)

diff --git a/include/linux/bio.h b/include/linux/bio.h
index ec255f2829948..cffd5eba401ed 100644
--- a/include/linux/bio.h
+++ b/include/linux/bio.h
@@ -69,14 +69,6 @@ static inline bool bio_no_advance_iter(const struct bio *bio)
 	       bio_op(bio) == REQ_OP_WRITE_ZEROES;
 }
 
-static inline unsigned int bio_cur_bytes(struct bio *bio)
-{
-	if (bio_has_data(bio))
-		return bio_iovec(bio).bv_len;
-	else /* dataless requests such as discard */
-		return bio->bi_iter.bi_size;
-}
-
 static inline void *bio_data(struct bio *bio)
 {
 	if (bio_has_data(bio))
diff --git a/include/linux/blk-mq.h b/include/linux/blk-mq.h
index 0e941f2175784..2219e92771186 100644
--- a/include/linux/blk-mq.h
+++ b/include/linux/blk-mq.h
@@ -927,7 +927,11 @@ static inline unsigned int blk_rq_bytes(const struct request *rq)
 
 static inline int blk_rq_cur_bytes(const struct request *rq)
 {
-	return rq->bio ? bio_cur_bytes(rq->bio) : 0;
+	if (!rq->bio)
+		return 0;
+	if (!bio_has_data(rq->bio))	/* dataless requests such as discard */
+		return rq->bio->bi_iter.bi_size;
+	return bio_iovec(rq->bio).bv_len;
 }
 
 unsigned int blk_rq_err_bytes(const struct request *rq);
-- 
2.30.2




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