block: remove bvec_iter_rewind()

Commit 7759eb23fd980 ("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>

diff --git a/include/linux/bvec.h b/include/linux/bvec.h
index 02c73c6aa805eb1bf9e9678137f73958abb21559..ba0ae40e77c91742fe3bc71e0334682ea7d4e81b 100644 (file)
--- a/include/linux/bvec.h
+++ b/include/linux/bvec.h
@@ -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 &&                                          \