> +/* used for chunk_for_each_segment */
> +static inline void bvec_next_segment(const struct bio_vec *bvec,
> + struct bvec_iter_all *iter_all)
FYI, chunk_for_each_segment doesn't exist anymore, this is
bvec_for_each_segment now. Not sure the comment helps much, though.
> +{
> + struct bio_vec *bv = &iter_all->bv;
> +
> + if (bv->bv_page) {
> + bv->bv_page += 1;
I think this needs to use nth_page() given that with discontigmem
page structures might not be allocated contigously.
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