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authorChristoph Hellwig <hch@lst.de>2021-04-12 15:46:58 +0200
committerJens Axboe <axboe@kernel.dk>2021-04-12 09:19:58 -0600
commit5f03414d4098b5718f1a5e99b43b9d9cb6f3612a (patch)
treedfdeab389f11bb0f1080abc6445d6d1a6bebc3e5
parent6f822e1b5d9dda3d20e87365de138046e3baa03a (diff)
block: move bio_list_copy_data to pktcdvd
bio_list_copy_data is only used by pktcdvd, so move it there. Signed-off-by: Christoph Hellwig <hch@lst.de> Link: https://lore.kernel.org/r/20210412134658.2623190-2-hch@lst.de Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
-rw-r--r--block/bio.c37
-rw-r--r--drivers/block/pktcdvd.c36
-rw-r--r--include/linux/bio.h1
3 files changed, 36 insertions, 38 deletions
diff --git a/block/bio.c b/block/bio.c
index 0fecb80872c2..303298996afe 100644
--- a/block/bio.c
+++ b/block/bio.c
@@ -1221,43 +1221,6 @@ void bio_copy_data(struct bio *dst, struct bio *src)
}
EXPORT_SYMBOL(bio_copy_data);
-/**
- * bio_list_copy_data - copy contents of data buffers from one chain of bios to
- * another
- * @src: source bio list
- * @dst: destination bio list
- *
- * Stops when it reaches the end of either the @src list or @dst list - that is,
- * copies min(src->bi_size, dst->bi_size) bytes (or the equivalent for lists of
- * bios).
- */
-void bio_list_copy_data(struct bio *dst, struct bio *src)
-{
- struct bvec_iter src_iter = src->bi_iter;
- struct bvec_iter dst_iter = dst->bi_iter;
-
- while (1) {
- if (!src_iter.bi_size) {
- src = src->bi_next;
- if (!src)
- break;
-
- src_iter = src->bi_iter;
- }
-
- if (!dst_iter.bi_size) {
- dst = dst->bi_next;
- if (!dst)
- break;
-
- dst_iter = dst->bi_iter;
- }
-
- bio_copy_data_iter(dst, &dst_iter, src, &src_iter);
- }
-}
-EXPORT_SYMBOL(bio_list_copy_data);
-
void bio_free_pages(struct bio *bio)
{
struct bio_vec *bvec;
diff --git a/drivers/block/pktcdvd.c b/drivers/block/pktcdvd.c
index fc4b0f1aa86d..bd3556585122 100644
--- a/drivers/block/pktcdvd.c
+++ b/drivers/block/pktcdvd.c
@@ -1199,6 +1199,42 @@ try_next_bio:
return 1;
}
+/**
+ * bio_list_copy_data - copy contents of data buffers from one chain of bios to
+ * another
+ * @src: source bio list
+ * @dst: destination bio list
+ *
+ * Stops when it reaches the end of either the @src list or @dst list - that is,
+ * copies min(src->bi_size, dst->bi_size) bytes (or the equivalent for lists of
+ * bios).
+ */
+static void bio_list_copy_data(struct bio *dst, struct bio *src)
+{
+ struct bvec_iter src_iter = src->bi_iter;
+ struct bvec_iter dst_iter = dst->bi_iter;
+
+ while (1) {
+ if (!src_iter.bi_size) {
+ src = src->bi_next;
+ if (!src)
+ break;
+
+ src_iter = src->bi_iter;
+ }
+
+ if (!dst_iter.bi_size) {
+ dst = dst->bi_next;
+ if (!dst)
+ break;
+
+ dst_iter = dst->bi_iter;
+ }
+
+ bio_copy_data_iter(dst, &dst_iter, src, &src_iter);
+ }
+}
+
/*
* Assemble a bio to write one packet and queue the bio for processing
* by the underlying block device.
diff --git a/include/linux/bio.h b/include/linux/bio.h
index a8021d79d45d..a0b4cfdf62a4 100644
--- a/include/linux/bio.h
+++ b/include/linux/bio.h
@@ -483,7 +483,6 @@ extern void bio_check_pages_dirty(struct bio *bio);
extern void bio_copy_data_iter(struct bio *dst, struct bvec_iter *dst_iter,
struct bio *src, struct bvec_iter *src_iter);
extern void bio_copy_data(struct bio *dst, struct bio *src);
-extern void bio_list_copy_data(struct bio *dst, struct bio *src);
extern void bio_free_pages(struct bio *bio);
void bio_truncate(struct bio *bio, unsigned new_size);
void guard_bio_eod(struct bio *bio);

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