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authorPavel Begunkov <asml.silence@gmail.com>2020-11-24 17:58:13 +0000
committerJens Axboe <axboe@kernel.dk>2020-12-02 09:46:55 -0700
commit22b56c2964386ddced252be407150b22f85e209e (patch)
tree563070603b7e598538b3e0a35aedf31a689dc229 /block
parent6b6667aa4d1e0866f00b62d35a9be3875c7551f8 (diff)
bio: optimise bvec iteration
__bio_for_each_bvec(), __bio_for_each_segment() and bio_copy_data_iter() fall under conditions of bvec_iter_advance_single(), which is a faster and slimmer version of bvec_iter_advance(). Add bio_advance_iter_single() and convert them. Signed-off-by: Pavel Begunkov <asml.silence@gmail.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block')
-rw-r--r--block/bio.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/block/bio.c b/block/bio.c
index ebb18136b86f..1f2cc1fbe283 100644
--- a/block/bio.c
+++ b/block/bio.c
@@ -1212,8 +1212,8 @@ void bio_copy_data_iter(struct bio *dst, struct bvec_iter *dst_iter,
flush_dcache_page(dst_bv.bv_page);
- bio_advance_iter(src, src_iter, bytes);
- bio_advance_iter(dst, dst_iter, bytes);
+ bio_advance_iter_single(src, src_iter, bytes);
+ bio_advance_iter_single(dst, dst_iter, bytes);
}
}
EXPORT_SYMBOL(bio_copy_data_iter);