asmadeus@xxxxxxxxxxxxx wrote:
> There should be a `if (slot == folioq_nr_slots(folioq)) break` check
> somewhere as well? Or is the iov_iter guaranteed to always 1/ have some
> data and 2/ either be big enough or have remaining data in a step?
We should handle both cases. I think the other iteration functions
will. iov_iter_extractg_folioq_pages(), for example, wraps it in a
conditional:
if (offset < fsize) {
part = umin(part, umin(maxsize - extracted, fsize - offset));
i->count -= part;
i->iov_offset += part;
extracted += part;
p[nr++] = folio_page(folio, offset / PAGE_SIZE);
}
David
