Re: [PATCH 1/3] mm: Add folio_zero_tail() and use it in ext4

[Andreas Grünbacher <andreas.gruenbacher@xxxxxxxxx>]

Andrew,

Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> schrieb am Do., 9. Nov. 2023, 00:06:
> > +
> > +     if (folio_test_highmem(folio)) {
> > +             size_t max = PAGE_SIZE - offset_in_page(offset);
> > +
> > +             while (len > max) {
>
> Shouldn't this be `while (len)'?  AFAICT this code can fail to clear
> the final page.

not sure what you're seeing there, but this looks fine to me.

Thanks,
Andreas