Re: [PATCH 3/6] mm/page_io: use swap entries directly in zeromap helpers

[Johannes Weiner]

On Thu, Aug 06, 2026 at 06:55:35PM -0400, Tal Zussman wrote:
> Increment swp_entry_t::val directly instead of recomputing each entry
> with page_swap_entry(). This removes the last struct page usage in
> page_io.c and saves one call to compound_head() per page.
> 
> Signed-off-by: Tal Zussman <tz2294@xxxxxxxxxxxx>

...plus that unholy dance in folio_page_idx() for every +1.

Acked-by: Johannes Weiner <hannes@xxxxxxxxxxx>