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| author | Christoph Hellwig <hch@lst.de> | 2022-12-06 15:44:07 +0100 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2022-12-06 18:18:27 +0100 |
| commit | db1c7d77976775483a8ef240b4c705f113e13ea1 (patch) | |
| tree | e635a8ecd587635a067212f380ba466f69f87f91 /block/bio.c | |
| parent | blk-throttle: Use more suitable time_after check for update of slice_start (diff) | |
| download | linux-db1c7d77976775483a8ef240b4c705f113e13ea1.tar.xz linux-db1c7d77976775483a8ef240b4c705f113e13ea1.zip | |
block: bio_copy_data_iter
With the pktcdvdv removal, bio_copy_data_iter is unused now. Fold the
logic into bio_copy_data and remove the separate lower level function.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20221206144407.722049-1-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block/bio.c')
| -rw-r--r-- | block/bio.c | 37 |
1 files changed, 15 insertions, 22 deletions
diff --git a/block/bio.c b/block/bio.c index ab59a491a883..5f96fcae3f75 100644 --- a/block/bio.c +++ b/block/bio.c @@ -1401,27 +1401,6 @@ void __bio_advance(struct bio *bio, unsigned bytes) } EXPORT_SYMBOL(__bio_advance); -void bio_copy_data_iter(struct bio *dst, struct bvec_iter *dst_iter, - struct bio *src, struct bvec_iter *src_iter) -{ - while (src_iter->bi_size && dst_iter->bi_size) { - struct bio_vec src_bv = bio_iter_iovec(src, *src_iter); - struct bio_vec dst_bv = bio_iter_iovec(dst, *dst_iter); - unsigned int bytes = min(src_bv.bv_len, dst_bv.bv_len); - void *src_buf = bvec_kmap_local(&src_bv); - void *dst_buf = bvec_kmap_local(&dst_bv); - - memcpy(dst_buf, src_buf, bytes); - - kunmap_local(dst_buf); - kunmap_local(src_buf); - - bio_advance_iter_single(src, src_iter, bytes); - bio_advance_iter_single(dst, dst_iter, bytes); - } -} -EXPORT_SYMBOL(bio_copy_data_iter); - /** * bio_copy_data - copy contents of data buffers from one bio to another * @src: source bio @@ -1435,7 +1414,21 @@ void bio_copy_data(struct bio *dst, struct bio *src) struct bvec_iter src_iter = src->bi_iter; struct bvec_iter dst_iter = dst->bi_iter; - bio_copy_data_iter(dst, &dst_iter, src, &src_iter); + while (src_iter.bi_size && dst_iter.bi_size) { + struct bio_vec src_bv = bio_iter_iovec(src, src_iter); + struct bio_vec dst_bv = bio_iter_iovec(dst, dst_iter); + unsigned int bytes = min(src_bv.bv_len, dst_bv.bv_len); + void *src_buf = bvec_kmap_local(&src_bv); + void *dst_buf = bvec_kmap_local(&dst_bv); + + memcpy(dst_buf, src_buf, bytes); + + kunmap_local(dst_buf); + kunmap_local(src_buf); + + bio_advance_iter_single(src, &src_iter, bytes); + bio_advance_iter_single(dst, &dst_iter, bytes); + } } EXPORT_SYMBOL(bio_copy_data); |