On Tue, May 07, 2024 at 04:58:12PM +0200, Pankaj Raghav (Samsung) wrote:
> + if (len > PAGE_SIZE) {
> + folio = mm_get_huge_zero_folio(current->mm);
I don't think the mm_struct based interfaces work well here, as I/O
completions don't come in through the same mm. You'll want to use
lower level interfaces like get_huge_zero_page and use them at
mount time.
> + if (!folio)
> + folio = zero_page_folio;
And then don't bother with a fallback.
