Re: [PATCH RFC 13/13] mm/huge_memory: count only swap cache refs in anon folio split

[Zi Yan]

On Fri Aug 7, 2026 at 5:17 PM EDT, Kairui Song via B4 Relay wrote:
> From: Kairui Song <kasong@xxxxxxxxxxx>
>
> Only __folio_freeze_split_unmap() sees anon folios and swap cache folios
> now. The file split helper only handles page cache folios, which hold
> exactly folio_nr_pages() references.
>
> Rename folio_cache_ref_count() to folio_swapcache_ref_count() and drop
> the anon check so the helper counts what its name says. The file split
> helper now uses folio_nr_pages() directly.
>
> Signed-off-by: Kairui Song <kasong@xxxxxxxxxxx>
> ---
>  mm/huge_memory.c | 35 +++++++++++++++--------------------
>  1 file changed, 15 insertions(+), 20 deletions(-)
>

LGTM. Thanks.

Reviewed-by: Zi Yan <ziy@xxxxxxxxxx>


-- 
Best Regards,
Yan, Zi