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Subject[PATCH 2/2] block: remove unused function blk_bio_map_sg
Date
Signed-off-by: Christoph Hellwig <hch@lst.de>
---
block/blk-merge.c | 29 -----------------------------
include/linux/blkdev.h | 2 --
2 files changed, 31 deletions(-)

diff --git a/block/blk-merge.c b/block/blk-merge.c
index 89b97b5..891611a 100644
--- a/block/blk-merge.c
+++ b/block/blk-merge.c
@@ -283,35 +283,6 @@ int blk_rq_map_sg(struct request_queue *q, struct request *rq,
}
EXPORT_SYMBOL(blk_rq_map_sg);

-/**
- * blk_bio_map_sg - map a bio to a scatterlist
- * @q: request_queue in question
- * @bio: bio being mapped
- * @sglist: scatterlist being mapped
- *
- * Note:
- * Caller must make sure sg can hold bio->bi_phys_segments entries
- *
- * Will return the number of sg entries setup
- */
-int blk_bio_map_sg(struct request_queue *q, struct bio *bio,
- struct scatterlist *sglist)
-{
- struct scatterlist *sg = NULL;
- int nsegs;
- struct bio *next = bio->bi_next;
- bio->bi_next = NULL;
-
- nsegs = __blk_bios_map_sg(q, bio, sglist, &sg);
- bio->bi_next = next;
- if (sg)
- sg_mark_end(sg);
-
- BUG_ON(bio->bi_phys_segments && nsegs > bio->bi_phys_segments);
- return nsegs;
-}
-EXPORT_SYMBOL(blk_bio_map_sg);
-
static inline int ll_new_hw_segment(struct request_queue *q,
struct request *req,
struct bio *bio)
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index bf4ef66..7f9a516 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -1049,8 +1049,6 @@ extern void blk_queue_flush_queueable(struct request_queue *q, bool queueable);
extern struct backing_dev_info *blk_get_backing_dev_info(struct block_device *bdev);

extern int blk_rq_map_sg(struct request_queue *, struct request *, struct scatterlist *);
-extern int blk_bio_map_sg(struct request_queue *q, struct bio *bio,
- struct scatterlist *sglist);
extern void blk_dump_rq_flags(struct request *, char *);
extern long nr_blockdev_pages(void);

--
1.9.1


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