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block: remove bvec_iter_rewind()

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Commit 7759eb23fd ("block: remove bio_rewind_iter()") removes
bio_rewind_iter(), then no one uses bvec_iter_rewind() any more,
so remove it.

Reviewed-by: Omar Sandoval <osandov@fb.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Ming Lei 2019-02-15 19:13:09 +08:00 committed by Jens Axboe
parent 1a67356e9a
commit 19d62f6d00
1 changed files with 0 additions and 24 deletions
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24
include/linux/bvec.h
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@ -92,30 +92,6 @@ static inline bool bvec_iter_advance(const struct bio_vec *bv,
return true;
}
static inline bool bvec_iter_rewind(const struct bio_vec *bv,
struct bvec_iter *iter,
unsigned int bytes)
{
while (bytes) {
unsigned len = min(bytes, iter->bi_bvec_done);
if (iter->bi_bvec_done == 0) {
if (WARN_ONCE(iter->bi_idx == 0,
"Attempted to rewind iter beyond "
"bvec's boundaries\n")) {
return false;
}
iter->bi_idx--;
iter->bi_bvec_done = __bvec_iter_bvec(bv, *iter)->bv_len;
continue;
}
bytes -= len;
iter->bi_size += len;
iter->bi_bvec_done -= len;
}
return true;
}
#define for_each_bvec(bvl, bio_vec, iter, start) \
for (iter = (start); \
(iter).bi_size && \